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Publication: Eschmeyer, William N., ed. 1998 Catalog of Fishes Special Publication of the Center for Biodiversity Research and Information, no. 1, vol 1-3 2905

ITIS records citing this publication
 
 Kingdom Animalia
  Aaptosyax Rainboth, 1991 -- valid
  Aaptosyax grypus Rainboth, 1991 -- valid
  Abalistes Jordan & Seale, 1906 -- valid
  Abalistes macrophthalmus (Swainson, 1839) -- invalid
  Abantennarius Schultz, 1957 -- invalid
  Abantennarius analis Schultz, 1957 -- invalid
  Abbottina Jordan and Fowler, 1903 -- valid
  Abbottina elongata Yao and Yang in Luo, Le and Chen, 1977 -- invalid
  Abbottina guentheri Banarescu and Nalbant, 1973 -- invalid
  Abbottina liaoningensis Qin in Lui and Qin et al., 1987 -- valid
  Abbottina psegma Jordan and Fowler, 1903 -- invalid
  Abbottina rivularis (Basilewsky, 1855) -- valid
  Abbottina springeri Banarescu and Nalbant, 1973 -- valid
  Abbottina yunnanensis Yao and Yang in Luo, Le and Chen, 1977 -- invalid
  Ablabys Kaup, 1873 -- valid
  Ablabys taenianotus (Cuvier, 1829) -- valid
  Ablennes Jordan and Fordice, 1887 -- valid
  Ablennes hians (Valenciennes in Cuvier and Valenciennes, 1846) -- valid -- agujón sable, flat needlefish, sauro atlántico
  Aboma Jordan and Starks in Jordan, 1895 -- valid
  Aboma etheostoma Jordan and Starks in Jordan, 1895 -- valid -- gobio escamoso, scaly goby
  Aborichthys Chaudhuri, 1913 -- valid
  Aborichthys kempi Chaudhuri, 1913 -- valid
  Abramis Cuvier, 1816 -- valid
  Abramis ballerus (Linnaeus, 1758) -- invalid
  Abramis bjoerkna (Linnaeus, 1758) -- invalid
  Abramis brama (Linnaeus, 1758) -- valid -- bream
  Abramis gangeticus Swainson, 1839 -- invalid
  Abramis mantschuricus Basilewsky, 1855 -- invalid
  Abramis melanops Heckel, 1837 -- invalid
  Abramis microlepidotus Valenciennes in Cuvier and Valenciennes, 1844 -- invalid
  Abramis microlepis De Filippi, 1863 -- invalid
  Abramis sapa (Pallas, 1814) -- invalid
  Abramis trichroistius (Jordan and Gilbert in Jordan and Brayton, 1878) -- invalid
  Abramis urmianus Günther, 1899 -- invalid
  Abramites Fowler, 1906 -- valid
  Abramites hypselonotus (Günther, 1868) -- valid -- headstander, highbacked headstander, headstander, highbacked headstander
  Abramites microcephalus Norman, 1926 -- invalid
  Abramocephalus Steindachner, 1869 -- invalid
  Abramocephalus microlepis Steindachner, 1869 -- invalid
  Abranches Smith, 1947 -- invalid
  Abranches pinto Smith, 1947 -- invalid
  Abrostomus Smith, 1841 -- invalid
  Abrostomus umbratus Smith, 1841 -- invalid
  Abryois azumae Jordan and Snyder, 1902 -- invalid
  Abudefduf Forsskċl, 1775 -- valid -- sergeant majors
  Abudefduf abdominalis (Quoy and Gaimard, 1825) -- valid -- banded damselfish
  Abudefduf bengalensis (Bloch, 1787) -- valid
  Abudefduf notatus (Day, 1870) -- valid -- dusky damsel
  Abudefduf saxatilis (Linnaeus, 1758) -- valid -- sergeant major, píntano, petaca rayada
  Abudefduf septemfasciatus (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- sevenband demoiselle, sevenbanded sergeant major
  Abudefduf sexfasciatus (Lacépède, 1801) -- valid -- striptailed damselfish
  Abudefduf sordidus (Forsskċl, 1775) -- valid -- kupipi, spot pom, blackspot sergeant, blackspot sergeant major
  Abudefduf sparoides (Quoy and Gaimard, 1825) -- valid -- false-eye damsel
  Abudefduf taurus (Müller and Troschel in Schomburgk, 1848) -- valid -- night sergeant, píntano toro, petaca toro
  Abudefduf troschelii (Gill, 1862) -- valid -- Pacific sergeant major, Panamic sergeant major, petaca banderita
  Abyssicola Goode and Bean, 1896 -- invalid
  Abyssicola macrochir (Günther, 1877) -- invalid
  Abyssobrotula Nielsen, 1977 -- valid
  Abyssobrotula galatheae Nielsen, 1977 -- valid
  Abyssocottus Berg, 1906 -- valid
  Abyssocottus korotneffi Berg, 1906 -- valid
  Abythites Nielsen and Cohen, 1973 -- invalid
  Abythites lepidogenys (Smith and Radcliffe in Radcliffe, 1913) -- invalid
  Acahara Jordan and Hubbs, 1925 -- invalid
  Acanthalburnus Berg, 1916 -- invalid
  Acanthalburnus microlepis (De Filippi, 1863) -- invalid
  Acanthalburnus punctulatus (Kessler, 1877) -- invalid
  Acanthaluteres Bleeker, 1865 -- valid
  Acanthaluteres paragaudatus (Richardson, 1840) -- invalid
  Acantharchus Gill, 1864 -- valid -- mud sunfishes
  Acantharchus pomotis (Baird, 1855) -- valid -- Mud Sunfish
  Acanthemblemaria aspera (Longley, 1927) -- valid -- roughhead blenny
  Acanthemblemaria balanorum Brock, 1940 -- valid -- clubhead barnacle blenny, tubícola espinudo
  Acanthemblemaria castroi Stephens and Hobson in Stephens, Hobson and Johnson, 1966 -- valid
  Acanthemblemaria chaplini Böhlke, 1957 -- valid -- papillose blenny, sapito papiloso
  Acanthemblemaria crockeri Beebe and Tee-Van, 1938 -- valid -- browncheek blenny, tubícola cachetón
  Acanthemblemaria exilispinus Stephens, 1963 -- valid
  Acanthemblemaria greenfieldi Smith-Vaniz and Palacio, 1974 -- valid -- stalk blenny, tubícola palito
  Acanthemblemaria hancocki Myers and Reid, 1936 -- valid
  Acanthemblemaria macrospilus Brock, 1940 -- valid -- barnacle blenny, barnacle blenny, Mexican barnacle blenny, tubícola mexicano
  Acanthemblemaria maria Böhlke, 1961 -- valid -- secretary blenny, sapito erizo, secretary blenny
  Acanthemblemaria medusa Smith-Vaniz and Palacio, 1974 -- valid
  Acanthemblemaria rivasi Stephens, 1970 -- valid
  Acanthemblemaria spinosa Metzelaar, 1919 -- valid -- spinyhead blenny, sapito espinoso, spinyhead blenny, tubícola cabeza espinosa
  Acanthias Leach, 1818 -- invalid
  Acanthias blainville Risso, 1827 -- invalid
  Acanthias blainvillei Risso, 1827 -- invalid
  Acanthias suckleyi (Girard, 1855) -- invalid
  Acanthicus Agassiz in Spix and Agassiz, 1829 -- valid
  Acanthicus hystrix Agassiz in Spix and Agassiz, 1829 -- valid
  Acanthidium Lowe, 1839 -- invalid
  Acanthidium calceus Lowe, 1839 -- invalid
  Acanthidium molleri Whitley, 1939 -- invalid
  Acanthidium quadrispinosum McCulloch, 1915 -- invalid
  Acanthistius Gill, 1862 -- valid
  Acanthistius brasilianus (Cuvier in Cuvier and Valenciennes, 1828) -- valid
  Acanthistius serratum (Cuvier in Cuvier and Valenciennes, 1828) -- invalid
  Acanthobrama Heckel, 1843 -- valid
  Acanthocepola Bleeker, 1874 -- valid
  Acanthocepola cuneatus Smith, 1935 -- invalid -- bandfish, bandfish
  Acanthocepola limbata (Valenciennes in Cuvier and Valenciennes, 1835) -- valid -- blackspot bandfish, blackspot bandfish
  Acanthochaenus Gill, 1884 -- valid
  Acanthochaenus luetkenii Gill, 1884 -- valid
  Acanthochaenus lutkenii Gill, 1884 -- invalid
  Acanthochromis Gill, 1863 -- valid
  Acanthochromis polyacanthus (Bleeker, 1855) -- valid -- spotty-tail
  Acanthoclinus Jenyns, 1841 -- valid
  Acanthoclinus littoreus (Forster in Bloch and Schneider, 1801) -- valid
  Acanthoclinus quadridactylus (Bloch and Schneider, 1801) -- invalid -- rockfish, tumaka, rockfish, tumaka
  Acanthocottus Girard, 1850 -- invalid
  Acanthodoras Bleeker, 1862 -- valid
  Acanthodoras cataphractus (Linnaeus, 1758) -- valid
  Acanthodoras spinosissimus (Eigenmann and Eigenmann, 1888) -- valid -- talking catfish
  Acanthogobio Herzenstein, 1892 -- valid
  Acanthogobio guentheri Herzenstein, 1892 -- valid
  Acanthogobius flavimanus (Temminck and Schlegel, 1845) -- valid -- yellowfin goby, gobio extranjero
  Acantholabrus Valenciennes in Cuvier and Valenciennes, 1839 -- valid
  Acantholabrus palloni (Risso, 1810) -- valid -- scaled-rayed wrasse
  Acantholingua Hadzisce, 1960 -- invalid
  Acantholiparis opercularis Gilbert and Burke, 1912 -- valid
  Acantholumpenus mackayi (Gilbert, 1896) -- valid -- pighead prickleback, blackline prickleback
  Acanthonus Günther, 1878 -- valid
  Acanthonus armatus Günther, 1878 -- valid
  Acanthoplesiops Regan, 1912 -- valid
  Acanthopoma Lütken, 1892 -- valid
  Acanthopsetta Schmidt, 1904 -- valid
  Acanthopsetta nadeshnyi Schmidt, 1904 -- valid -- scale-eye plaice, uromegarei
  Acanthopsoides Fowler, 1934 -- valid
  Acanthopsoides delphax Siebert, 1991 -- valid
  Acanthopsoides gracilentus (Smith, 1945) -- valid
  Acanthopsoides gracilis Fowler, 1934 -- valid
  Acanthopsoides hapalias Siebert, 1991 -- valid
  Acanthopsoides molobrion Siebert, 1991 -- valid
  Acanthopsoides robertsi Siebert, 1991 -- valid
  Acanthorhodeus Bleeker, 1871 -- valid
  Acanthorutilus Berg, 1912 -- invalid
  Acanthorutilus handlirschi Pietschmann, 1933 -- invalid -- cicek
  Acanthostracion Bleeker, 1865 -- valid
  Acanthostracion polygonius Poey, 1876 -- valid -- torito hexagonal, honeycomb cowfish, Honeycomb Cowfish
  Acanthostracion quadricornis (Linnaeus, 1758) -- valid -- torito común, torito cornudo, scrawled cowfish, Scrawled Cowfish
  Acanthotaurichthys Burgess, 1978 -- invalid
  Acanthurus Forsskċl, 1775 -- valid -- lancetfishes, surgeonfishes, tangs, doctorfishes, common surgeonfishes
  Acanthurus achilles Shaw, 1803 -- valid -- Achilles tang, redspot surgeonfish, redspot tang, redtail surgeonfish, cirujano encendido, Achilles Tang, cirujano encendido
  Acanthurus bahianus Castelnau, 1855 -- valid -- ocean surgeon, barbero, cirujano pardo
  Acanthurus bariene Lesson, 1831 -- valid -- pencilled surgeonfish
  Acanthurus bleekeri Günther, 1861 -- invalid -- striped surgeonfish
  Acanthurus blochii Valenciennes in Cuvier & Valenciennes, 1835 -- valid -- ringtail surgeonfish, whitetail surgeonfish
  Acanthurus celebicus Bleeker, 1853 -- invalid -- Celebis's surgeonfish
  Acanthurus chirurgus (Bloch, 1787) -- valid -- doctorfish, barbero rayado, cirujano rayado, Doctorfish
  Acanthurus coeruleus Bloch & Schneider, 1801 -- valid -- blue tang, barbero azul, Blue Tang, cirujano azul
  Acanthurus dussumieri Valenciennes in Cuvier & Valenciennes, 1835 -- valid
  Acanthurus elongatus (Lacepède, 1802) -- valid -- elongate surgeon
  Acanthurus fowleri de Beaufort in Weber & de Beaufort, 1951 -- valid -- Fowler's surgeon
  Acanthurus fuliginosus Lesson, 1831 -- invalid -- ringtailed surgeonfish
  Acanthurus gahhm (Forsskċl, 1775) -- valid -- dusky surgeonfish
  Acanthurus glaucopareius Cuvier, 1829 -- invalid -- whitefaced surgeonfish
  Acanthurus guttatus Forster in Bloch & Schneider, 1801 -- valid
  Acanthurus helioides (Barbour, 1905) -- invalid -- yellow doctorfish
  Acanthurus hepatus (Linnaeus, 1766) -- invalid
  Acanthurus leucopareius (Jenkins, 1903) -- valid -- whitethroated surgeonfish
  Acanthurus lineatus (Linnaeus, 1758) -- valid -- lined surgeonfish
  Acanthurus lituratus Forster in Bloch & Schneider, 1801 -- invalid
  Acanthurus mata (Cuvier, 1829) -- valid -- tailring surgeon
  Acanthurus matoides Valenciennes in Cuvier & Valenciennes, 1835 -- invalid -- whitetailed surgeonfish
  Acanthurus monroviae Steindachner, 1876 -- valid -- surgeonfish
  Acanthurus nigricans (Linnaeus, 1758) -- valid -- whitecheek surgeonfish, goldrim surgeonfish, cirujano cariblanco, Goldrim Surgeonfish
  Acanthurus nigricauda Duncker & Mohr, 1929 -- valid
  Acanthurus nigrofuscus (Forsskċl, 1775) -- valid
  Acanthurus nigroris Valenciennes in Cuvier & Valenciennes, 1835 -- valid
  Acanthurus olivaceus Bloch & Schneider, 1801 -- valid -- orangespot tang
  Acanthurus pyroferus Kittlitz, 1834 -- valid -- yellowspot surgeonfish
  Acanthurus randalli Briggs & Caldwell, 1957 -- invalid -- Gulf surgeonfish
  Acanthurus sandvicensis Streets, 1877 -- valid -- convict tang
  Acanthurus thompsoni (Fowler, 1923) -- valid
  Acanthurus triostegus (Linnaeus, 1758) -- valid -- convict tang, convictfish, convict surgeonfish, cirujano reo, Convict Surgeonfish
  Acanthurus triostegus sandvicensis Streets, 1877 -- invalid
  Acanthurus weberi (Ahl, 1923) -- invalid -- Weber's surgeonfish
  Acanthurus xanthopterus Valenciennes in Cuvier & Valenciennes, 1835 -- valid -- yellowfin surgeonfish, cirujano aleta amarilla, Yellowfin Surgeonfish
  Acantopsis van Hasselt, 1823 -- valid
  Acantopsis choirorhynchos (Bleeker, 1854) -- valid
  Acantopsis dialuzona van Hasselt, 1823 -- valid
  Acantopsis octoactinotos Siebert, 1991 -- valid
  Acapoeta Cockerell, 1910 -- valid
  Acapoeta tanganicae (Boulenger, 1900) -- valid
  Acara curviceps Ahl, 1923 -- invalid
  Acara dorsiger Heckel, 1840 -- invalid
  Acara geayi Pellegrin, 1902 -- invalid
  Acara maronii Steindachner, 1881 -- invalid
  Acara minuta Hensel, 1870 -- invalid
  Acara portalegrensis Hensel, 1870 -- invalid
  Acara punctulata Günther, 1863 -- invalid
  Acara tetramerus Heckel, 1840 -- invalid
  Acarauna Sevastianoff, 1802 -- invalid
  Acarichthys Eigenmann, 1912 -- valid
  Acarichthys geayi (Pellegrin, 1902) -- invalid
  Acentrogobius Bleeker, 1874 -- valid -- checkered gobies
  Acentrogobius aestuarius Smith, 1959 -- invalid -- inhambane goby, inhambane goby
  Acentrogobius balteatops Smith, 1959 -- invalid -- bull goby, bull goby
  Acentrogobius bontii (Bleeker, 1849) -- invalid -- bont goby, bont goby
  Acentrogobius caninus (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- dogtoothed goby, dogtoothed goby
  Acentrogobius cauerensis (Bleeker, 1853) -- invalid -- weeper, weeper
  Acentrogobius griseus (Day, 1876) -- valid -- grey goby, grey goby
  Acentrogobius janthinopterus (Bleeker, 1852) -- valid -- pupilspot goby
  Acentrogobius masoni (Day, 1873) -- valid -- manson's goby, manson's goby
  Acentrogobius ornatus (Rüppell, 1830) -- invalid -- ornate goby, ornate goby
  Acentrogobius spence (Smith, 1947) -- invalid -- pearl goby, pearl goby
  Acentrogobius viridipunctatus (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- greenspotted goby, greenspotted goby
  Acentronura Kaup, 1853 -- valid
  Acentronura dendritica (Barbour, 1905) -- valid -- pipehorse, prehensile-tailed pipefish, seahorse pipefish, caballito enano, caballito pipa
  Acentronura mossambica Smith, 1963 -- invalid -- pipehorse, pipehorse
  Acentronura tentaculata Günther, 1870 -- valid
  Acentrophryne Regan, 1926 -- valid
  Acerina Cuvier, 1816 -- invalid
  Acerina czekanowskii Dybowski, 1874 -- invalid
  Acerina fischeri Eichwald, 1873 -- invalid
  Acerina vulgaris Cuvier in Cuvier and Valenciennes, 1829 -- invalid
  Acestra Kner, 1853 -- invalid
  Acestra acus Kner, 1853 -- invalid
  Acestra gracilis (Regan, 1904) -- invalid
  Acestridium Haseman, 1911 -- valid
  Acestrorhynchus Eigenmann and Kennedy, 1903 -- valid
  Acestrorhynchus altus Menezes, 1969 -- valid
  Acheilognathus Bleeker, 1860 -- valid
  Acheilognathus argenteus Wu, 1939 -- invalid
  Acheilognathus barbatus Nichols, 1926 -- valid
  Acheilognathus coreanus Steindachner, 1892 -- valid
  Acheilognathus cyanostigma Jordan and Fowler, 1903 -- valid
  Acheilognathus deignani (Smith, 1945) -- valid
  Acheilognathus elongatus (Regan, 1908) -- valid
  Acheilognathus elongatus brevicaudatus Chen and Li, 1987 -- invalid
  Acheilognathus elongatus microphysa Yang, Chu and Chen, 1990 -- invalid
  Acheilognathus gracilis Nichols, 1926 -- valid
  Acheilognathus hypselonotus (Bleeker, 1871) -- valid
  Acheilognathus koreensis Kim and Kim, 1990 -- valid
  Acheilognathus kristinae (Holcik, 1971) -- valid
  Acheilognathus longipinnis Regan, 1905 -- valid
  Acheilognathus macropterus (Bleeker, 1871) -- valid
  Acheilognathus melanogaster Bleeker, 1860 -- valid
  Acheilognathus meridianus (Wu, 1939) -- valid
  Acheilognathus mesembrinum Jordan and Evermann, 1902 -- invalid
  Acheilognathus moriokae Jordan and Thompson, 1914 -- invalid
  Acheilognathus omeiensis (Shih and Tchang, 1934) -- valid
  Acheilognathus peihoensis (Fowler, 1910) -- valid
  Acheilognathus polyspinus (Holcík, 1972) -- valid
  Acheilognathus pseudorhombea (Mori, 1935) -- valid
  Acheilognathus rhombeus (Temminck and Schlegel, 1846) -- valid
  Acheilognathus robustus (Holcik, 1972) -- invalid
  Acheilognathus somjinensis Kim and Kim, 1991 -- valid
  Acheilognathus steenackeri Sauvage, 1883 -- invalid
  Acheilognathus tabira Jordan and Thompson, 1914 -- valid
  Acheilognathus tokunagai (Mori, 1934) -- invalid
  Acheilognathus tonkinensis (Vaillant, 1892) -- valid
  Acheilognathus typus (Bleeker, 1863) -- invalid
  Acheilognathus yamatsutae Mori, 1928 -- valid
  Achiroides Bleeker, 1851 -- valid
  Achiroides leucorhynchos Bleeker, 1851 -- valid
  Achiropsetta Norman, 1930 -- valid
  Achirus Lacepède, 1802 -- valid -- hogchokers, lined soles
  Achirus lineatus (Linnaeus, 1758) -- valid -- lined sole, acedía rayada, suela listada, Lined Sole
  Achirus maculatus Kuhl & van Hasselt in Bleeker, 1852 -- invalid
  Achirus mazatlanus (Steindachner, 1869) -- valid -- Mexican sole, Pacific lined sole, tepalcate, Pacific Lined Sole
  Achirus paulistanus Miranda Ribeiro, 1915 -- invalid
  Achirus pavoninus Lacepède, 1802 -- invalid
  Achoerodus Gill, 1863 -- valid
  Achoerodus gouldii (Richardson, 1843) -- valid -- giant pigfish
  Acipenser Linnaeus, 1758 -- valid -- sturgeons, greater sturgeons
  Acipenser baerii Brandt, 1869 -- valid -- Siberian sturgeon
  Acipenser brevirostrum Lesueur, 1818 -- valid -- shortnose sturgeon
  Acipenser dabryanus Duméril, 1869 -- valid -- Yangtze sturgeon
  Acipenser fulvescens Rafinesque, 1817 -- valid -- lake sturgeon, esturgeon jaune
  Acipenser gueldenstaedtii colchica Marti, 1940 -- invalid
  Acipenser gueldenstaedtii gueldenstaedtii Brandt and Ratzeburg, 1833 -- invalid
  Acipenser medirostris Ayres, 1854 -- valid -- green sturgeon, esturión verde
  Acipenser naccarii Bonaparte, 1836 -- valid -- Adriatic sturgeon
  Acipenser nudiventris Lovetsky, 1828 -- valid -- thorn sturgeon, ship sturgeon, spiny sturgeon
  Acipenser oxyrhynchus Mitchill, 1815 -- invalid -- Atlantic sturgeon
  Acipenser oxyrhynchus desotoi Vladykov, 1955 -- invalid -- Gulf sturgeon
  Acipenser oxyrhynchus oxyrhynchus Mitchill, 1815 -- invalid -- Atlantic sturgeon
  Acipenser oxyrinchus Mitchill, 1815 -- valid -- Gulf sturgeon, esturión del Atlántico, esturgeon noir, Atlantic sturgeon
  Acipenser persicus Borodin, 1897 -- valid
  Acipenser ruthenus Linnaeus, 1758 -- valid -- sterlet
  Acipenser schrenckii Brandt, 1869 -- valid
  Acipenser sinensis Gray, 1835 -- valid -- Chinese sturgeon, Sagami sturgeon
  Acipenser stellatus Pallas, 1771 -- valid -- sevruga, stellate sturgeon, star sturgeon
  Acipenser sturio Linnaeus, 1758 -- valid -- Baltic sturgeon, European sturgeon
  Acipenser transmontanus Richardson, 1836 -- valid -- esturión blanco, white sturgeon
  Acnodon Eigenmann, 1903 -- valid
  Acnodon normani Gosline, 1951 -- valid
  Acrocheilus Agassiz, 1855 -- invalid -- chiselmouths
  Acrocheilus alutaceus Agassiz and Pickering in Agassiz, 1855 -- invalid -- chiselmouth
  Acrochordonichthys Bleeker, 1857 -- valid
  Acrochordonichthys buettikoferi Popta, 1904 -- invalid
  Acromycter Smith and Kanazawa, 1977 -- valid
  Acromycter alcocki (Gilbert and Cramer, 1897) -- valid
  Acromycter atlanticus Smith, 1989 -- valid
  Acromycter perturbator (Parr, 1932) -- valid
  Acropoma Temminck and Schlegel, 1843 -- valid
  Acrossocheilus Oshima, 1919 -- valid
  Acrossocheilus clivosius (Lin, 1935) -- valid
  Acrossocheilus fasciatus (Steindachner, 1892) -- valid
  Acrossocheilus formosanus (Regan, 1908) -- valid
  Acrossocheilus hemispinus (Nichols, 1925) -- valid
  Acrossocheilus hemispinus cinctus (Lin, 1931) -- valid
  Acrossocheilus ikedai (Harada, 1943) -- invalid
  Acrossocheilus iridescens (Nichols and Pope, 1927) -- valid
  Acrossocheilus krempfi (Pellegrin and Chevey, 1934) -- invalid
  Acrossocheilus kreyenbergii (Regan, 1908) -- valid
  Acrossocheilus labiatus (Regan, 1908) -- valid
  Acrossocheilus longipinnis (Wu, 1939) -- invalid
  Acrossocheilus monticola (Günther, 1888) -- valid
  Acrossocheilus parallens (Nichols, 1931) -- valid
  Acrossocheilus stenotaeniatus Chu and Cui in Chu and Chen, 1989 -- valid
  Acrossocheilus wenchowensis Wang, 1935 -- valid
  Acrossocheilus yunnanensis (Regan, 1904) -- valid
  Aculeola de Buen, 1959 -- valid
  Aculeola nigra de Buen, 1959 -- valid -- hooktooth dogfish
  Acuticurimata Fowler, 1941 -- invalid
  Acyrtops Schultz, 1951 -- valid
  Acyrtops beryllinus (Hildebrand and Ginsburg, 1926) -- valid -- pequita esmerilada, emerald clingfish
  Adamacypris Fowler, 1934 -- invalid
  Adamas Huber, 1979 -- valid
  Adelosebastes Eschmeyer, Abe and Nakano, 1979 -- valid
  Adenops Schultz, 1948 -- invalid
  Adinia Girard, 1859 -- valid -- diamond killifishes
  Adinia multifasciata Girard, 1859 -- invalid
  Adinia xenica (Jordan and Gilbert, 1882) -- valid -- diamond killifish
  Adontosternarchus Ellis in Eigenmann, 1912 -- valid
  Adrianichthys Weber, 1913 -- valid
  Adventor Whitley, 1952 -- valid
  Adventor elongatus (Whitley, 1952) -- valid -- sandpaper fish
  Aeoliscus Jordan and Starks, 1902 -- valid
  Aequidens Eigenmann and Bray, 1894 -- valid
  Aequidens latifrons (Steindachner, 1878) -- valid -- blue cichlid, blue cichlid, platinum acara
  Aequidens mariae Eigenmann, 1922 -- invalid -- Mary's cichlid
  Aequidens portalegrensis (Hensel, 1870) -- invalid -- black acara, black acara
  Aequidens rivulatus (Günther, 1860) -- valid -- green terror, green terror
  Aequidens tetramerus (Heckel, 1840) -- valid -- saddle cichlid, saddle cichlid
  Aequidens thayeri (Steindachner, 1875) -- invalid
  Aesopia Kaup, 1858 -- valid
  Aesopia cornuta Kaup, 1858 -- valid -- horned sole
  Aesopia heterorhinos (Bleeker, 1856) -- invalid
  Aesopia quagga Kaup, 1858 -- invalid
  Aetapcus Scott, 1936 -- valid
  Aethaloperca Fowler, 1904 -- valid
  Aethaloperca rogaa (Forsskċl, 1775) -- valid -- redmouth grouper
  Aethiomastacembelus Travers, 1988 -- invalid
  Aethoprora Goode and Bean, 1896 -- invalid
  Aethoprora dumerilii (Bleeker, 1856) -- invalid
  Aethoprora effulgens Goode and Bean, 1896 -- invalid
  Aethoprora luetkeni (Brauer, 1904) -- invalid
  Aetobatus Blainville, 1816 -- valid -- bonnet rays
  Aetobatus flagellum (Bloch and Schneider, 1801) -- valid
  Aetobatus narinari (Euphrasen, 1790) -- valid -- chucho pintado, spotted eagle ray, bonnetray, obispo
  Aetomylaeus Garman, 1908 -- valid
  Aetomylaeus milvus (Müller and Henle, 1841) -- valid
  Aetomylaeus niehofii (Bloch and Schneider, 1801) -- valid
  Aetomylaeus vespertilio (Bleeker, 1852) -- valid
  Aetoplatea Valenciennes in Müller and Henle, 1841 -- valid
  Aetoplatea zonurus Bleeker, 1852 -- valid
  Afromastacembelinae Travers, 1984 -- invalid
  Afromastacembelus Travers, 1984 -- invalid
  Afropuntio Karaman, 1971 -- invalid
  Agamyxis Cope, 1878 -- valid
  Agamyxis pectinifrons (Cope, 1870) -- valid
  Ageneiogarra Garman, 1912 -- invalid
  Ageneiosus Lacepède, 1803 -- valid
  Agenigobio Sauvage, 1878 -- invalid
  Agmus Eigenmann, 1910 -- invalid
  Agonocottus Pavlenko, 1910 -- invalid
  Agonomalus Guichenot, 1866 -- valid
  Agonomalus mozinoi Wilimovsky and Wilson, 1979 -- valid -- kelp poacher
  Agonopsis Gill, 1861 -- valid
  Agonopsis sterletus (Gilbert in Jordan and Evermann, 1898) -- valid -- southern spearnose poacher, bandido narigón
  Agonopsis vulsa (Jordan and Gilbert, 1880) -- valid -- northern spearnose poacher
  Agonostomus Bennett, 1832 -- valid -- mountain mullet
  Agonostomus monticola (Bancroft in Griffith and Smith, 1834) -- valid -- mountain mullet, dajao, trucha de tierra caliente
  Agonus Bloch and Schneider, 1801 -- valid
  Agonus acipenserinus Tilesius, 1813 -- invalid
  Agonus cataphractus (Linnaeus, 1758) -- valid -- armed bullhead
  Agonus decagonus Bloch and Schneider, 1801 -- invalid
  Agosia Girard, 1856 -- valid -- longfin daces
  Agosia adobe Jordan and Evermann in Jordan, 1891 -- invalid
  Agosia chrysogaster Girard, 1856 -- valid -- Longfin Dace, pupo panzaverde
  Agosia klamathensis Evermann and Meek, 1898 -- invalid
  Agosia robusta Rutter, 1903 -- invalid
  Agosia shuswap Eigenmann and Eigenmann, 1893 -- invalid
  Agrammobarbus Pellegrin, 1935 -- invalid
  Agrammus Günther, 1860 -- invalid
  Agriopus Cuvier in Cuvier and Valenciennes, 1829 -- invalid
  Ahlia Jordan and Davis, 1891 -- valid
  Ahlia egmontis (Jordan, 1884) -- valid -- key worm eel, safío de llave, tieso de cayo
  Ailia Gray, 1830 -- valid
  Ailia punctata (Day, 1872) -- valid
  Ainocottus Jordan and Starks, 1904 -- invalid
  Akysis Bleeker, 1858 -- valid
  Akysis hendricksoni Alfred, 1966 -- valid
  Alabes Cloquet, 1816 -- valid
  Alaeops Jordan & Starks, 1904 -- invalid
  Alaeops plinthus Jordan & Starks, 1904 -- invalid
  Albatrossia Jordan and Gilbert in Jordan and Evermann, 1898 -- valid
  Albatrossia pectoralis (Gilbert, 1892) -- valid -- giant grenadier, giant rattail
  Albula Scopoli, 1777 -- valid -- bonefishes
  Albula glossodonta (Forsskċl, 1775) -- valid -- Indo-Pacific bonefish
  Albula nemoptera (Fowler, 1911) -- valid -- shafted bonefish, macabí de hebra
  Albula vulpes (Linnaeus, 1758) -- valid -- bonefish, macabí
  Albulichthys Bleeker, 1860 -- valid
  Albulichthys albuloides (Bleeker, 1855) -- valid
  Alburnellus Girard, 1856 -- invalid
  Alburnoides Jeitteles, 1861 -- valid
  Alburnoides bipunctatus (Bloch, 1782) -- valid -- spirlin, European spirlin, chub
  Alburnoides oblongus Bulgakov, 1923 -- invalid -- Tashkent riffle minnow
  Alburnoides taeniatus (Kessler, 1874) -- invalid
  Alburnus Rafinesque, 1820 -- valid
  Alburnus akili Battalgil, 1942 -- valid
  Alburnus albidus (Costa, 1838) -- valid -- vulturino
  Alburnus alburnus (Linnaeus, 1758) -- valid -- bleak, European bleak
  Alburnus atropatenae Berg, 1925 -- invalid
  Alburnus caeruleus Heckel, 1843 -- valid -- black spotted bleak
  Alburnus capito Heckel, 1843 -- invalid
  Alburnus caudimacula Heckel, 1847 -- invalid
  Alburnus charusini Herzenstein in Zograf and Kavraisky, 1889 -- invalid
  Alburnus dnjestrensis Gratzianov, 1907 -- valid
  Alburnus escherichii Steindachner, 1897 -- valid
  Alburnus filippii Kessler, 1877 -- valid -- Kura bleak
  Alburnus harusini Herzenstein in Zogrtaff and Kavraiskii, 1889 -- invalid
  Alburnus hebes Heckel, 1843 -- invalid
  Alburnus heckeli Battalgil, 1944 -- invalid
  Alburnus iblis Heckel, 1847 -- invalid
  Alburnus kosswigi Battalgil, 1941 -- invalid
  Alburnus kotschyi Steindachner, 1863 -- valid -- Iskenderun bleak
  Alburnus megacephalus Heckel, 1847 -- invalid
  Alburnus microlepis Heckel, 1843 -- invalid
  Alburnus nasreddini Battalgil, 1944 -- invalid
  Alburnus nordmannii Dybowski, 1862 -- invalid
  Alburnus oleiferus Dabry de Thiersant, 1872 -- invalid
  Alburnus orontis Sauvage, 1882 -- valid -- Orontes bleak
  Alburnus pallidus Heckel, 1843 -- invalid
  Alburnus punctulatus Kessler, 1877 -- invalid
  Alburnus qalilus Krupp, 1992 -- valid
  Alburnus schejtan Heckel, 1847 -- invalid
  Alburnus sellal Heckel, 1843 -- valid -- Mossul bleak, Eastern shah kuli, Mesopotamian bleak
  Alburnus striatus Petrov, 1926 -- invalid
  Alburnus timarensis Kuru, 1980 -- valid
  Alburnus vignoni Lortet, 1883 -- invalid
  Alcichthys Jordan and Starks, 1904 -- valid
  Alcidea Jordan and Evermann, 1898 -- invalid
  Alcockia Goode and Bean, 1896 -- valid
  Alcockia rostrata (Günther, 1887) -- valid
  Aldrichetta Whitley, 1945 -- valid
  Aldrichetta forsteri (Valenciennes in Cuvier and Valenciennes, 1836) -- valid -- yellow-eye mullet
  Aldrovandia Goode and Bean, 1896 -- valid
  Aldrovandia affinis (Günther, 1877) -- valid -- halosaur, rattailed lizardfish
  Aldrovandia gracilis Goode and Bean, 1896 -- valid
  Aldrovandia pallida Goode and Bean, 1896 -- invalid
  Aldrovandia phalacra (Vaillant, 1888) -- valid
  Aldrovandia rostrata (Günther, 1878) -- valid
  Alectrias Jordan and Evermann, 1898 -- valid
  Alectrias alectrolophus (Pallas, 1814) -- valid -- stone cockscomb
  Alepidomus Hubbs, 1944 -- valid
  Alepidomus evermanni (Eigenmann, 1903) -- valid -- cuban glassfish
  Alepocephalus Risso, 1820 -- valid
  Alepocephalus agassizii Goode and Bean, 1883 -- valid -- Agassiz's smoothhead
  Alepocephalus australis Barnard, 1923 -- valid
  Alepocephalus australis australis Barnard, 1923 -- valid
  Alepocephalus australis barnardi Norman, 1930 -- valid
  Alepocephalus bairdii Goode and Bean, 1879 -- valid -- Baird's smoothhead
  Alepocephalus blanfordi Alcock, 1892 -- invalid -- Blanford's naked head
  Alepocephalus productus Gill, 1883 -- valid -- smalleye smoothhead
  Alepocephalus rostratus Risso, 1820 -- valid
  Alepocephalus tenebrosus Gilbert, 1892 -- valid
  Alertichthys Moreland, 1960 -- valid
  Alestes Müller and Troschel, 1844 -- valid
  Alestes acutidens Peters, 1852 -- invalid
  Alestes imberi Peters, 1852 -- invalid
  Alestes longipinnis (Günther, 1864) -- invalid
  Alestopetersius Hoedeman, 1951 -- valid
  Alfaro Meek, 1912 -- valid
  Alfaro cultratus (Regan, 1908) -- valid -- knife livebearer, knife livebearer
  Algansea Girard, 1856 -- valid
  Algansea affinis Regan, 1907 -- invalid
  Algansea alvarezi Romero, 1967 -- invalid
  Algansea aphanea Barbour and Miller, 1978 -- valid -- Riffle Chub, pupo del Ayutla
  Algansea barbata Álvarez and Cortés, 1964 -- valid -- Lerma Chub, pupo del Lerma
  Algansea bicolor Girard, 1856 -- invalid
  Algansea dugesi Bean, 1892 -- invalid
  Algansea lacustris Steindachner in Therese von Bayern and Steindachner, 1895 -- valid -- Pátzcuaro Chub, acúmara
  Algansea monticola Barbour and Contreras-Balderas, 1968 -- valid -- Mountain Chub, pupo del Juchipila
  Algansea obesa Girard, 1856 -- invalid
  Algansea paratincella Álvarez, 1963 -- invalid
  Algansea rubescens Meek, 1902 -- invalid
  Algansea stigmatura Regan, 1907 -- invalid
  Algansea tarascorum Steindachner in Therese von Bayern and Steindachner, 1895 -- invalid
  Allanetta Whitley, 1943 -- invalid
  Allanetta afra (Peters, 1855) -- invalid -- shortfin silverside
  Allanetta harringtonensis (Goode, 1877) -- invalid
  Allanetta klunzingeri Smith, 1965 -- invalid -- slender silverside
  Allartedius Hubbs, 1926 -- invalid
  Allenichthys Pietsch, 1984 -- valid
  Allenichthys glauerti (Whitley, 1944) -- valid -- Glauert's frogfish
  Alloclinus Hubbs, 1927 -- valid
  Alloclinus holderi (Lauderbach in Jordan and Starks, 1907) -- valid -- island kelpfish, trambollo isleño
  Alloconger Jordan and Hubbs, 1925 -- invalid
  Allocottus Hubbs, 1926 -- invalid
  Allocyttus McCulloch, 1914 -- valid
  Allocyttus verrucosus (Gilchrist, 1906) -- valid -- coster dory
  Allodontichthys Hubbs and Turner, 1939 -- valid
  Allolumpenus Hubbs and Schultz, 1932 -- invalid
  Allolumpenus hypochromus Hubbs and Schultz, 1932 -- invalid -- Y-prickleback
  Allomycter Guitart, 1972 -- invalid
  Allomycter dissutus Guitart Manday, 1972 -- invalid
  Allomycterus McCulloch, 1921 -- valid
  Allomycterus jaculiferus (Cuvier, 1818) -- invalid -- porcupinefish
  Allomycterus pilatus Whitley, 1931 -- valid -- porcupinefish
  Alloophorus Hubbs and Turner, 1939 -- valid -- bulldog goodeid
  Alloricuzenius Matsubara and Iwai, 1951 -- invalid
  Allosmerus Hubbs, 1925 -- valid
  Allosmerus elongatus (Ayres, 1854) -- valid -- Whitebait Smelt, éperlan blanchaille
  Allotaius Whitley, 1937 -- valid
  Allotaius spariformis (Ogilby, 1910) -- valid -- Cape Moreton sea bream
  Allotoca Hubbs and Turner, 1939 -- valid
  Alopias Rafinesque, 1810 -- valid
  Alopias caudatus Phillipps, 1932 -- invalid
  Alopias greyi Whitley, 1937 -- invalid
  Alopias pelagicus Nakamura, 1935 -- valid -- pelagic thresher shark, zorro pelágico, pelagic thresher
  Alopias superciliosus (Lowe, 1841) -- valid -- bigeye thresher, tiburón zorro ojón, zorro ojón
  Alopias vulpinus (Bonnaterre, 1788) -- valid -- thresher shark, tiburón zorro común, zorro, renard marin
  Alosa Linck, 1790 -- valid -- river herrings
  Alosa aestivalis (Mitchill, 1814) -- valid -- blueback herring, alose d'été, blueback shad
  Alosa agone (Scopoli, 1786) -- valid
  Alosa alabamae Jordan and Evermann in Evermann, 1896 -- valid -- Alabama shad, Gulf shad, Ohio shad
  Alosa alosa (Linnaeus, 1758) -- valid -- Alice shad, allis shad
  Alosa brashnikovi agrachanica (Mikhailovsky, 1941) -- invalid
  Alosa brashnikovi autumnalis (Berg, 1915) -- invalid
  Alosa brashnikovi curensis (Suvorov, 1907) -- invalid
  Alosa brashnikovi grimmi (Borodin, 1904) -- invalid
  Alosa brashnikovi kisselevitschi (Bulgakov, 1926) -- invalid
  Alosa brashnikovi nirchi (Morosov, 1928) -- invalid
  Alosa brashnikovi orientalis (Mikhailovsky, 1941) -- invalid
  Alosa brashnikovi sarensis (Mikhailovsky, 1941) -- invalid
  Alosa caspia (Eichwald, 1838) -- valid -- Caspian shad
  Alosa caspia bulgarica Drensky, 1934 -- invalid
  Alosa caspia caspia (Eichwald, 1838) -- valid
  Alosa caspia knipowitschi (Iljin, 1927) -- valid
  Alosa caspia macedonica (Vinciguerra, 1921) -- invalid
  Alosa caspia nordmanni Antipa, 1904 -- valid -- Danube shad
  Alosa caspia palaeostomi (Sadowsky, 1934) -- invalid -- palaeostome shad
  Alosa caspia persica (Iljin, 1927) -- valid
  Alosa caspia salina (Svetovidov, 1936) -- valid
  Alosa caspia tanaica (Grimm, 1901) -- invalid -- Azov shad
  Alosa chrysochloris (Rafinesque, 1820) -- valid -- skipjack herring, skipjack shad, blue herring, green herring, golden shad, river herring, skipjack
  Alosa fallax (Lacepède, 1803) -- invalid -- Twaite shad
  Alosa fallax benacensis Barbier, 1907 -- invalid
  Alosa fallax fallax (Lacepède, 1803) -- invalid
  Alosa fallax killarnensis Regan, 1916 -- invalid
  Alosa fallax lacustris Fatio, 1890 -- invalid
  Alosa fallax nilotica (Geoffroy Saint-Hilaire, 1808) -- invalid
  Alosa immaculata Bennett, 1835 -- valid
  Alosa kessleri (Grimm, 1887) -- valid -- Caspian anadromous shad
  Alosa kessleri kessleri (Grimm, 1887) -- invalid
  Alosa kessleri volgensis (Berg, 1913) -- invalid
  Alosa killarnensis Regan, 1916 -- valid
  Alosa macedonica (Vinciguerra, 1921) -- valid
  Alosa maeotica (Grimm, 1901) -- valid -- Black Sea shad
  Alosa mediocris (Mitchill, 1814) -- valid -- hickory shad, hickory jack, shad herring, freshwater taylor, fall herring, bonejack
  Alosa pontica pontica (Eichwald, 1838) -- invalid
  Alosa pseudoharengus (Wilson, 1811) -- valid -- alewife, kyak, gaspareau, bigeye herring, branch herring, freshwater herring, gray herring, white herring, sawbelly, grayback
  Alosa sapidissima (Wilson, 1811) -- valid -- alose savoureuse, sábalo americano, American shad, Atlantic shad, common shad, white shad
  Alosa sphaerocephala (Berg, 1913) -- valid -- Agrakhan shad
  Alosa tanaica (Grimm, 1901) -- valid -- Azov shad
  Alosa vistonica Economidis and Sinis, 1986 -- valid
  Alphestes Bloch and Schneider, 1801 -- valid
  Alphestes afer (Bloch, 1793) -- valid -- guaseta, mutton hamlet
  Alphestes immaculatus Breder, 1936 -- valid -- guaseta del Pacífico, Pacific mutton hamlet
  Alphestes multiguttatus (Günther, 1867) -- valid -- guaseta rayada, rivulated mutton hamlet
  Aluterus Cloquet, 1816 -- valid -- filefishes
  Aluterus heudelotii Hollard, 1855 -- valid -- dotterel filefish, lija jaspeada, Dotterel Filefish
  Aluterus monoceros (Linnaeus, 1758) -- valid -- unicorn filefish, lija barbuda, Unicorn Filefish
  Aluterus punctata Agassiz in Spix & Agassiz, 1831 -- invalid -- long filefish
  Aluterus scriptus (Osbeck, 1765) -- valid -- scrawled filefish, lija trompa, unicornfish, Scrawled Filefish
  Amacrodon Regan and Trewavas, 1932 -- invalid
  Amanses Gray, 1835 -- valid
  Amanses scopas (Cuvier, 1829) -- valid -- broom filefish
  Amaralia Fowler, 1954 -- valid
  Amarsipus Haedrich, 1969 -- valid
  Amarsipus carlsbergi Haedrich, 1969 -- valid
  Amazonsprattus Roberts, 1984 -- valid
  Amazonsprattus scintilla Roberts, 1984 -- valid -- Rio Negro pygmy anchovy
  Ambassis Cuvier in Cuvier and Valenciennes, 1828 -- valid -- glassies, perchlets, common glassfishes
  Ambassis buruensis Bleeker, 1856 -- valid -- east Indian glassfish, Melanesian glassfish
  Ambassis commersonii Cuvier in Cuvier and Valenciennes, 1828 -- invalid
  Ambassis gymnocephalus (Lacepède, 1802) -- valid -- bald glassy, bald glassy
  Ambassis interrupta Bleeker, 1852 -- valid
  Ambassis interruptus Bleeker, 1852 -- invalid -- longspine glassfish
  Ambassis miops Günther, 1872 -- valid -- lafa glassfish
  Ambassis productus Guichenot, 1866 -- invalid -- longspine glassy, longspine glassy
  Ambloplites Rafinesque, 1820 -- valid -- rock basses
  Ambloplites ariommus Viosca, 1936 -- valid -- Shadow Bass
  Ambloplites cavifrons Cope, 1868 -- valid -- Roanoke Bass
  Ambloplites constellatus Cashner and Suttkus, 1977 -- valid -- Ozark Bass
  Ambloplites rupestris (Rafinesque, 1817) -- valid -- Rock Bass, crapet de roche, lobina de roca
  Amblyapistus Bleeker, 1876 -- invalid
  Amblyapistus taenianotus (Cuvier, 1829) -- invalid
  Amblyapistus taenionotus (Cuvier, 1829) -- invalid -- whitenose scorpionfish
  Amblyceps Blyth, 1858 -- valid
  Amblyceps mangois (Hamilton, 1822) -- valid
  Amblycirrhitus Gill, 1862 -- valid
  Amblycirrhitus bimaculata (Jenkins, 1903) -- invalid -- twospot hawkfish, twospot hawkfish
  Amblycirrhitus pinos (Mowbray in Breder, 1927) -- valid -- redspotted hawkfish, rayadito, halcón rayadito
  Amblydoras Bleeker, 1862 -- valid
  Amblydoras affinis (Kner, 1855) -- valid
  Amblydoras hancockii (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- Hancock's amblydoras
  Amblygaster Bleeker, 1849 -- valid
  Amblygaster clupeoides Bleeker, 1849 -- valid -- Bleeker's smoothbelly sardinella, sardinelle coulat, sardinella vientre liso
  Amblygaster leiogaster (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- sardinella daniva, sardinela daniva, smoothbelly sardinella
  Amblygaster okinawensis (Kishinouye, 1908) -- invalid
  Amblygaster sirm (Walbaum, 1792) -- valid -- white sardinella, spotted sardinella, sardinelle tachetée, sardinela manchada
  Amblyglyphidodon Bleeker, 1877 -- valid
  Amblyglyphidodon curacao (Bloch, 1787) -- valid -- clouded damselfish, staghorn damselfish
  Amblyglyphidodon leucogaster (Bleeker, 1847) -- valid -- goldenscaled damselfish, whitebelly damselfish, yellowbelly devil, yellowbelly damselfish
  Amblygobius Bleeker, 1874 -- valid
  Amblygobius albimaculatus (Rüppell, 1830) -- valid
  Amblygobius sphynx (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- sphinx goby, sphinx goby
  Amblyopsis DeKay, 1842 -- valid -- cavefishes
  Amblyopsis rosae (Eigenmann, 1898) -- valid -- Ozark cavefish
  Amblyopsis spelaea DeKay, 1842 -- valid -- northern cavefish
  Amblyotrypauchen Hora, 1924 -- valid
  Amblypharyngodon Bleeker, 1860 -- valid
  Amblypharyngodon atkinsonii (Blyth, 1860) -- valid
  Amblypharyngodon chakaiensis Babu Rao and Nair, 1978 -- invalid
  Amblypharyngodon chulabornae Vidthayanon and Kottelat, 1990 -- invalid
  Amblypharyngodon curacao (Bloch, 1787) -- valid
  Amblypharyngodon melettinus (Valenciennes in Cuvier and Valenciennes, 1844) -- valid
  Amblypharyngodon mola (Hamilton, 1822) -- valid
  Amblyraja Malm, 1877 -- valid -- stout skates
  Amblyrhynchotes Troschel, 1856 -- invalid
  Amblyrhynchotes honckenii (Bloch, 1785) -- invalid -- evileyed blaasop
  Amblyrhynchotes spinosissimus (Regan, 1908) -- invalid -- prickle blaasop
  Ameca Miller and Fitzsimmons, 1971 -- valid
  Ameca splendens Miller and Fitzsimons, 1971 -- valid -- butterfly splitfin, mexcalpique mariposa
  Ameiurus Rafinesque, 1820 -- valid -- bullheads
  Ameiurus brunneus Jordan, 1877 -- valid -- Snail Bullhead
  Ameiurus catus (Linnaeus, 1758) -- valid -- White Catfish, white bullhead
  Ameiurus melas (Rafinesque, 1820) -- valid -- barbotte noire, Black Bullhead, bagre torito negro
  Ameiurus natalis (Lesueur, 1819) -- valid -- Yellow Bullhead, bagre torito amarillo, barbotte jaune
  Ameiurus nebulosus (Lesueur, 1819) -- valid -- Brown Bullhead, barbotte brune
  Ameiurus platycephalus (Girard, 1859) -- valid -- Flat Bullhead
  Ameiurus serracanthus (Yerger and Relyea, 1968) -- valid -- Spotted Bullhead
  Amia Linnaeus, 1766 -- valid -- bowfin
  Amia calva Linnaeus, 1766 -- valid -- Bowfin, poisson-castor, Ruddy Bowfin
  Amioidei -- invalid
  Ammocrypta Jordan, 1877 -- valid -- sand darters
  Ammocrypta beani Jordan, 1877 -- invalid -- Naked Sand Darter
  Ammocrypta beanii Jordan, 1877 -- valid -- Naked Sand Darter
  Ammocrypta bifascia Williams, 1975 -- valid -- Florida Sand Darter
  Ammocrypta clara Jordan and Meek, 1885 -- valid -- Western Sand Darter
  Ammocrypta meridiana Williams, 1975 -- valid -- Southern Sand Darter
  Ammocrypta vivax Hay, 1882 -- valid -- Scaly Sand Darter
  Ammocryptocharax Weitzman and Kanazawa, 1976 -- valid
  Ammocryptocharax elegans Weitzman and Kanazawa, 1976 -- valid
  Ammodytes Linnaeus, 1758 -- valid -- sand lances
  Ammodytes alascanus Cope, 1873 -- invalid -- Alaskan sand lance
  Ammodytes americanus DeKay, 1842 -- valid -- American sand lance, inshore sand lance, lance, sand eel, lançon d'Amérique
  Ammodytes dubius Reinhardt, 1837 -- valid -- northern sand lance, offshore sand lance, sand eel, lançon du nord
  Ammodytes hexapterus Pallas, 1814 -- valid -- Pacific sand lance
  Ammodytes immaculatus Corbin, 1950 -- invalid
  Ammodytes marinus Raitt, 1934 -- valid -- sand eel, sand lance
  Ammodytes tobianus Linnaeus, 1758 -- valid -- lesser sand eel
  Ammodytoides Duncker and Mohr, 1939 -- valid
  Ammodytoides gilli (Bean, 1895) -- valid -- Panamic sand lance, peón panámico
  Ammodytoides renniei (Smith, 1957) -- valid -- falsetail sandlance
  Ammolabrus Randall and Carlson, 1997 -- valid
  Ammotretis Günther, 1862 -- valid
  Ammotretis brevipinnis Norman, 1926 -- valid
  Ammotretis elongatus McCulloch, 1914 -- valid -- elongate flounder
  Ammotretis lituratus (Richardson, 1844) -- valid
  Ammotretis macrolepis McCulloch, 1914 -- valid
  Ammotretis rostratus Günther, 1862 -- valid -- longsnouted flounder, longsnout flounder
  Amniataba Whitley, 1943 -- valid
  Amniataba caudavittatus (Richardson, 1845) -- invalid
  Amniataba percoides (Günther, 1864) -- valid
  Amorphocephalus Bowdich, 1825 -- invalid
  Amoya Herre, 1927 -- valid
  Amoya signatus (Peters, 1855) -- valid
  Ampheces Jordan and Schneider, 1902 -- invalid
  Amphelickturus Parr, 1930 -- invalid
  Amphichthys Swainson, 1839 -- valid
  Amphichthys cryptocentrus (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- sapo bocon
  Amphilius Günther, 1864 -- valid
  Amphilius baudoni Pellegrin, 1928 -- valid
  Amphilophus Agassiz, 1859 -- valid
  Amphilophus citrinellus (Günther, 1864) -- valid -- Midas cichlid
  Amphipnous Müller, 1840 -- invalid
  Amphipnous cuchia (Hamilton, 1822) -- invalid -- cuchia
  Amphiprion Bloch and Schneider, 1801 -- valid -- anemonefishes
  Amphiprion akallopisos Bleeker, 1853 -- valid -- nosestripe anemonefish, skunk clownfish, whitebacked clownfish, skunk-stripe anemonefish
  Amphiprion allardi Klausewitz, 1970 -- valid -- twobar anemonefish
  Amphiprion bicinctus Rüppell, 1830 -- valid -- threebanded anemonefish, twoband anemonefish
  Amphiprion clarkii (Bennett, 1830) -- valid -- black clown, Brown anemonefish, yellowtail clownfish, Clark's anemonefish, chocolate clownfish
  Amphiprion ephippium (Bloch, 1790) -- valid -- red saddleback anemonefish, saddle anemonefish
  Amphiprion frenatus Brevoort, 1856 -- valid -- oneband anemonefish, blackback anemonefish, fire clown, tomato clownfish, red clown
  Amphiprion leucokranos Allen, 1973 -- valid -- whitebonnet anemonefish
  Amphiprion melanopus Bleeker, 1852 -- valid -- dusky anemonefish, black anemonefish, red and black anemonefish, fire clownfish
  Amphiprion percula (Lacépède, 1802) -- valid -- clown fish, blackfinned clownfish, clown anemonefish, orange clown fish
  Amphiprion perideraion Bleeker, 1855 -- valid -- false skunkstriped anemonefish, pink anemonefish, whitebanded anemonefish, salmon clownfish, pink skunk clown
  Amphiprion polymnus (Linnaeus, 1758) -- valid -- yellowfinned anemonefish, brownsaddle clownfish, saddleback clownfish
  Amphiprion sebae Bleeker, 1853 -- valid -- yellowtailed anemonefish, brown clownfish, sebae clown, yellowtail clownfish
  Amphiprion xanthurus Cuvier in Cuvier and Valenciennes, 1830 -- invalid
  Amphistichus Agassiz, 1854 -- valid
  Amphistichus argenteus Agassiz, 1854 -- valid -- barred surfperch, mojarra de bandas
  Amphistichus koelzi (Hubbs, 1933) -- valid -- calico surfperch, mojarra angaripola
  Amphistichus rhodoterus (Agassiz, 1854) -- valid -- redtail surfperch
  Amphotistius Garman, 1913 -- invalid
  Amphotistius imbricatus (Bloch and Schneider, 1801) -- invalid
  Amphotistius laosensis (Roberts and Karnasuta, 1987) -- invalid
  Anabas Cloquet, 1816 -- valid
  Anabas ansorgii Boulenger, 1912 -- invalid
  Anabas argentoventer Ahl in Schreitmüller and Ahl, 1922 -- invalid
  Anabas fasciolata Boulenger, 1899 -- invalid
  Anabas muriei Boulenger, 1906 -- invalid
  Anabas oxyrhynchus Boulenger, 1902 -- invalid
  Anabas testudineus (Bloch, 1792) -- valid -- climbing perch, climbing bass
  Anableps Scopoli, 1777 -- valid
  Anableps anableps (Linnaeus, 1758) -- valid -- four-eyes, foureyed fish, four-eyes, largescale foureyes
  Anableps dowei Gill, 1861 -- valid -- Pacific foureyed fish
  Anableps microlepis Müller and Troschel, 1844 -- valid -- finescale foureyes, foureyes
  Anacanthobatis von Bonde and Swart, 1923 -- valid -- smooth leg skate
  Anacanthobatis americanus Bigelow and Schroeder, 1962 -- valid -- American leg skate
  Anacanthobatis donghaiensis (Deng, Xiong and Zhan, 1983) -- valid
  Anacanthobatis folirostris (Bigelow and Schroeder, 1951) -- valid -- leaf-nose leg skate
  Anacanthobatis longirostris Bigelow and Schroeder, 1962 -- valid -- longnose leg skate
  Anacanthobatis marmoratus von Bonde and Swart, 1923 -- valid
  Anacanthobatis melanosoma (Chan, 1965) -- valid
  Anacanthobatis nanhaiensis (Meng and Li, in Chu, Meng, Hu and Li, 1981) -- valid
  Anacanthobatis stenosomus (Li and Hu in Chu, Meng, Hu and Li, 1982) -- valid
  Anacanthus Gray, 1830 -- valid
  Anadoras Eigenmann, 1925 -- valid
  Anampses Quoy and Gaimard, 1824 -- valid
  Anampses caeruleopunctatus Rüppell, 1829 -- valid -- bluefreckled wrasse
  Anampses chlorostigma Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Anampses chrysocephalus Randall, 1958 -- valid
  Anampses elegans Ogilby, 1889 -- valid
  Anampses femininus Randall, 1972 -- valid
  Anampses geographicus Valenciennes in Cuvier and Valenciennes, 1840 -- valid -- scribbled wrasse
  Anampses lennardi Scott, 1959 -- valid
  Anampses lineatus Randall, 1972 -- valid
  Anampses melanurus Bleeker, 1857 -- valid
  Anampses melanurus lineatus Randall, 1972 -- invalid
  Anampses melanurus melanurus Bleeker, 1857 -- invalid
  Anampses meleagrides Valenciennes in Cuvier and Valenciennes, 1840 -- valid -- speckled wrasse
  Anampses neoguinaicus Bleeker, 1878 -- valid
  Anampses twistii Bleeker, 1856 -- valid
  Anampsodax Bleeker, 1875 -- invalid
  Anarchias Jordan and Starks in Jordan and Seale, 1906 -- valid
  Anarchias allardicei Jordan and Starks in Jordan and Seale, 1906 -- valid
  Anarchias cantonensis (Schultz, 1943) -- valid
  Anarchias euryurus (Lea, 1913) -- valid
  Anarchias galapagensis (Seale, 1940) -- valid -- hardtail moray, morena cola dura
  Anarchias grassii (Roule, 1916) -- invalid
  Anarchias knighti Jordan and Starks in Jordan and Seale, 1906 -- invalid
  Anarchias leucurus (Snyder, 1904) -- valid
  Anarchias longicaudis (Peters, 1877) -- valid
  Anarchias maldiviensis Klausewitz, 1964 -- valid
  Anarchias seychellensis Smith, 1962 -- valid
  Anarchias similis (Lea, 1913) -- valid -- pygmy moray, morena pigmea, morena enana
  Anarchias yoshiae Kanazawa, 1952 -- invalid -- pygmy moray
  Anarchopterus Hubbs, 1935 -- valid
  Anarchopterus criniger (Bean and Dresel, 1884) -- valid -- fringed pipefish, pez pipa orlado
  Anarchopterus tectus (Dawson, 1978) -- valid -- insular pipefish, pez pipa isleño
  Anarhichas Linnaeus, 1758 -- valid -- Atlantic wolffishes
  Anarhichas denticulatus Krĝyer, 1845 -- valid -- northern wolffish
  Anarhichas latifrons Steenstrup and Hallgrimsson in Steenstrup, 1876 -- invalid
  Anarhichas lepturus Bean, 1879 -- invalid -- Alaska wolffish
  Anarhichas lupus Linnaeus, 1758 -- valid -- Atlantic wolffish, loup atlantique
  Anarhichas minor Olafsen, 1772 -- valid -- spotted wolffish, loup tacheté
  Anarhichas orientalis Pallas, 1814 -- valid -- Bering wolffish
  Anarrhichthys Ayres, 1855 -- valid
  Anarrhichthys felis (Girard, 1858) -- invalid -- wolf eel, wolf eel
  Anarrhichthys ocellatus Ayres, 1855 -- valid -- northern wolffish, wolf-eel
  Anatolichthys Kosswig and Sözer, 1945 -- invalid
  Anchichoerops Barnard, 1927 -- valid
  Anchichoerops natalensis (Gilchrist and Thompson, 1909) -- valid
  Anchoa Jordan and Evermann, 1927 -- valid -- common anchovies
  Anchoa analis (Miller, 1945) -- valid -- longfin Pacific anchovy, anchoa aletona del Pacífico
  Anchoa argentivittata (Regan, 1904) -- valid -- Regan's anchovy, silverstripe anchovy, anchoa plateada
  Anchoa belizensis (Thomerson and Greenfield, 1975) -- valid -- anchoa beliceña, Belize anchovy
  Anchoa cayorum (Fowler, 1906) -- valid -- manjúa de los cayos, key anchovy, anchoa de cayo
  Anchoa chamensis Hildebrand, 1943 -- valid -- Chame Point anchovy
  Anchoa choerostoma (Goode, 1874) -- valid -- hogmouth anchovy, Bermuda anchovy
  Anchoa colonensis Hildebrand, 1943 -- valid -- narrow-striped anchovy, narrowstriped anchovy, anchoa rayita, Carribean anchovy
  Anchoa compressa (Girard, 1858) -- valid -- deepbody anchovy, anchoa alta
  Anchoa cubana (Poey, 1868) -- valid -- manjúa cubana, anchoa cubana, Cuban anchovy
  Anchoa curta (Jordan and Gilbert, 1882) -- valid -- anchoa chaparra, short anchovy
  Anchoa delicatissima (Girard, 1854) -- valid -- slough anchovy, anchoa delicada
  Anchoa eigenmannia (Meek and Hildebrand, 1923) -- valid -- Eigenmann's anchovy
  Anchoa exigua (Jordan and Gilbert, 1882) -- valid -- slender anchovy, anchoa fina
  Anchoa filifera (Fowler, 1915) -- valid -- longfinger anchovy
  Anchoa helleri (Hubbs, 1921) -- valid -- Heller's anchovy, Gulf anchovy, anchoa del Golfo
  Anchoa hepsetus (Linnaeus, 1758) -- valid -- striped anchovy, manjúa listada, anchoa legítima, broad-striped anchovy
  Anchoa ischana (Jordan and Gilbert, 1882) -- valid -- sharpnose anchovy, anchoa chicotera, slender anchovy
  Anchoa lamprotaenia Hildebrand, 1943 -- valid -- bigeye anchovy, manjúa ojuda, big-eye anchovy, longnose anchovy, anchoa ojuda
  Anchoa lucida (Jordan and Gilbert, 1882) -- valid -- bright anchovy, anchoa ojitos
  Anchoa lyolepis (Evermann and Marsh, 1900) -- valid -- dusky anchovy, manjúa mulata, anchoa mulata, shortfinger anchovy
  Anchoa lyolepis continentalis Cervigón, 1969 -- invalid
  Anchoa marinii Hildebrand, 1943 -- valid -- Marini's anchovy
  Anchoa mitchilli (Valenciennes in Cuvier and Valenciennes, 1848) -- valid -- bay anchovy, anchoa de caleta
  Anchoa mundeola (Gilbert and Pierson in Jordan and Evermann, 1898) -- valid -- false Panama anchovy, anchoa panameña falsa
  Anchoa mundeoloides (Breder, 1928) -- valid -- northern Gulf anchovy, anchoa golfina
  Anchoa nasus (Kner and Steindachner, 1867) -- valid -- anchoa trompuda, longnose anchovy, bignose anchovy
  Anchoa nasuta Hildebrand and Carvalho, 1948 -- invalid -- longnose anchovy
  Anchoa panamensis (Steindachner, 1877) -- valid -- Panama anchovy
  Anchoa parva (Meek and Hildebrand, 1923) -- valid -- manjúa parva, anchoa parva, little anchovy
  Anchoa pectoralis Hildebrand, 1943 -- valid -- bigfin anchovy
  Anchoa scofieldi (Jordan and Culver in Jordan, 1895) -- valid -- anchoa amarilla, yellow anchovy, Scofield's anchovy
  Anchoa spinifer (Valenciennes in Cuvier and Valenciennes, 1848) -- valid -- spicule anchovy
  Anchoa starksi (Gilbert and Pierson in Jordan and Evermann, 1898) -- valid -- Stark's anchovy
  Anchoa tricolor (Spix and Agassiz, 1829) -- valid -- piquitinga, piquitinga anchovy
  Anchoa trinitatis (Fowler, 1915) -- valid -- Trinidad anchovy
  Anchoa walkeri Baldwin and Chang, 1970 -- valid -- persistent anchovy, anchoa persistente, Walker's anchovy
  Anchovia Jordan and Evermann in Jordan, 1895 -- valid
  Anchovia clupeoides (Swainson, 1839) -- valid -- hachudo, anchoveta sardina, zabaleta anchovy
  Anchovia macrolepidota (Kner, 1863) -- valid -- anchoveta escamuda, bigscale anchovy
  Anchovia surinamensis (Bleeker, 1866) -- valid -- Surinam anchovy
  Anchoviella Fowler, 1911 -- valid
  Anchoviella alleni (Myers, 1940) -- valid -- Allen's anchovy
  Anchoviella analis Miller, 1945 -- invalid -- longfin Pacific anchovy
  Anchoviella balboae (Jordan and Seale, 1926) -- valid -- Balboa anchovy
  Anchoviella brevirostris (Günther, 1868) -- valid -- snubnose anchovy
  Anchoviella carrikeri Fowler, 1940 -- valid -- Carriker's anchovy
  Anchoviella cayennensis (Puyo, 1946) -- valid -- Cayenne anchovy
  Anchoviella elongata (Meek and Hildebrand, 1923) -- valid -- elongate anchovy
  Anchoviella estauquae Hildebrand, 1943 -- invalid
  Anchoviella guianensis (Eigenmann, 1912) -- valid -- Guyana anchovy
  Anchoviella jamesi (Jordan and Seale, 1926) -- valid -- James's anchovy
  Anchoviella lepidentostole (Fowler, 1911) -- valid -- broadband anchovy
  Anchoviella manamensis Cervigón, 1982 -- valid -- Mánamo anchovy
  Anchoviella nattereri (Steindachner, 1879) -- valid -- Natterer's anchovy
  Anchoviella perfasciata (Poey, 1860) -- valid -- flat anchovy, manjúa chata, anchoa chata, Poey's anchovy
  Anchoviella vaillanti (Steindachner, 1908) -- valid -- Vaillant's anchovy
  Ancistrus Kner, 1854 -- valid -- antenna armored catfish
  Ancistrus chagresi Eigenmann and Eigenmann, 1889 -- valid
  Ancistrus dolichopterus Kner, 1854 -- valid -- bluechin xenocara
  Ancistrus gibbiceps Kner, 1854 -- invalid
  Ancistrus hoplogenys (Günther, 1864) -- valid
  Ancistrus pulcher Steindachner, 1915 -- invalid
  Ancylopsetta Gill, 1864 -- valid -- ocellated flounders
  Ancylopsetta antillarum Gutherz, 1966 -- valid
  Ancylopsetta cycloidea Tyler, 1959 -- valid
  Ancylopsetta dilecta (Goode & Bean, 1883) -- valid -- three-eye flounder, lenguado tres manchas, Three-eye Flounder
  Ancylopsetta kumperae Tyler, 1959 -- valid
  Ancylopsetta microctenus Gutherz, 1966 -- valid
  Andersonia Boulenger, 1900 -- valid
  Andersonia leptura Boulenger, 1900 -- valid
  Andriashevicottus Fedorov, 1990 -- valid
  Anema Günther, 1860 -- invalid
  Anguilla Schrank, 1798 -- valid -- freshwater eels
  Anguilla anguilla (Linnaeus, 1758) -- valid -- common eel, European eel
  Anguilla australis Richardson, 1841 -- valid -- shortfinned eel, shortfinned freshwater eel, shortfin eel, river eel, silver eel, Australian shortfinned eel, anguille d'Australie, anguila australiana
  Anguilla bengalensis (Gray, 1831) -- valid
  Anguilla bicolor McClelland, 1844 -- valid -- level-finned eel, short-finned eel, anguille à nageoire courte, anguila de aleta corta, Indonesian shortfin eel
  Anguilla borneensis Popta, 1924 -- valid
  Anguilla celebesensis Kaup, 1856 -- valid -- Indonesian mottled eel
  Anguilla dieffenbachii Gray, 1842 -- valid
  Anguilla japonica Temminck and Schlegel, 1846 -- valid -- anguille du Japon, anguila japonesa, Japanese eel
  Anguilla marmorata Quoy and Gaimard, 1824 -- valid -- giant mottled eel, grande anguille marbrée, anguilla moteada gigante, marbled eel
  Anguilla megastoma Kaup, 1856 -- valid -- Polynesian longfinned eel
  Anguilla mossambica (Peters, 1852) -- valid
  Anguilla nebulosa McClelland, 1844 -- valid -- long-finned eel
  Anguilla obscura Günther, 1872 -- valid -- shortfinned eel, Pacific shortfinned freshwater eel, Pacific shortfinned eel
  Anguilla reinhardtii Steindachner, 1867 -- valid -- Australian longfinned eel
  Anguilla rostrata (Lesueur, 1817) -- valid -- American eel, anguila, anguila americana, anguille d'Amérique
  Anguilla vulgaris Shaw, 1803 -- invalid
  Aniculerosa Whitley, 1933 -- invalid
  Aniculerosa taprobanensis Whitley, 1933 -- invalid -- manner velvetfish
  Anisarchus Gill, 1864 -- valid
  Anisarchus medius (Reinhardt, 1837) -- valid -- stout eelblenny
  Anisochromis Smith, 1954 -- valid
  Anisotremus Gill, 1861 -- valid -- smallmouth grunts
  Anisotremus bicolor (Castelnau, 1855) -- invalid -- maria-prieta
  Anisotremus caesius (Jordan and Gilbert, 1882) -- valid -- burro mojarro, silvergray grunt
  Anisotremus davidsoni (Steindachner, 1876) -- invalid -- sargo
  Anisotremus davidsonii (Steindachner, 1876) -- valid -- sargo rayado, sargo
  Anisotremus dovii (Günther, 1864) -- valid -- blackbarred grunt, burro rompepaila
  Anisotremus interruptus (Gill, 1862) -- valid -- burrito grunt, burro bacoco
  Anisotremus moricandi (Ranzani, 1842) -- valid
  Anisotremus surinamensis (Bloch, 1791) -- valid -- black margate, pompón, burriquete
  Anisotremus taeniatus Gill, 1861 -- valid -- catalina, burro bandera, Panamic porkfish
  Anisotremus virginicus (Linnaeus, 1758) -- valid -- catalineta, porkfish, burro payaso
  Annamia Hora, 1932 -- valid
  Annamia normani (Hora, 1931) -- valid
  Anodontiglanis Rendahl, 1922 -- valid
  Anodontiglanis dahli Rendahl, 1922 -- valid
  Anodontostoma Bleeker, 1849 -- valid
  Anodontostoma chacunda (Hamilton, 1822) -- valid -- shortnose gizzard shad, alose chaconde, Chacunda gizzard shad, sábalo chacunda
  Anodontostoma chanpole (Hamilton, 1822) -- invalid -- gizzard shad
  Anodontostoma selangkat (Bleeker, 1852) -- valid -- Indonesian gizzard shad
  Anodontostoma thailandiae Wongratana, 1983 -- valid -- Thai gizzard shad
  Anodus Cuvier, 1829 -- valid
  Anodus elongatus Agassiz in Spix and Agassiz, 1829 -- valid
  Anomalochromis Greenwood, 1985 -- valid
  Anomalochromis thomasi (Boulenger, 1915) -- valid -- African butterfly cichlid
  Anomalopterichthys Whitley, 1940 -- invalid
  Anomalopterichthys pinguis (Vaillant, 1886) -- invalid
  Anomalopterus pinguis Vaillant, 1886 -- invalid
  Anoplagonus Gill, 1861 -- valid
  Anoplagonus inermis (Günther, 1860) -- valid -- smooth alligatorfish
  Anoplarchus Gill, 1861 -- valid
  Anoplarchus insignis Gilbert and Burke, 1912 -- valid -- slender cockscomb
  Anoplarchus purpurescens Gill, 1861 -- valid -- high cockscomb
  Anoplopoma Ayres, 1859 -- valid
  Anoplopoma fimbria (Pallas, 1814) -- valid -- sablefish, bacalao negro
  Anoptichthys Hubbs and Innes, 1936 -- invalid
  Anoptichthys jordani Hubbs and Innes, 1936 -- invalid -- blind cave fish, blind cave fish
  Anostomus Scopoli, 1777 -- valid
  Anostomus anostomus (Linnaeus, 1758) -- valid -- striped anastomus, striped anastomus
  Anostomus gronovii (Swainson, 1839) -- invalid
  Anostomus salmoneus Gronow in Gray, 1854 -- invalid
  Anostomus ternetzi Fernández-Yépez, 1949 -- valid
  Anoxypristis White and Moy-Thomas, 1941 -- valid
  Anoxypristis cuspidata (Latham, 1794) -- valid
  Antennarius Daudin, 1816 -- valid -- frogfishes, warty frogfishes
  Antennarius altipinnis Smith and Radcliff in Radcliff, 1912 -- invalid
  Antennarius analis (Schultz, 1957) -- valid -- tail-jet frogfish
  Antennarius avalonis Jordan and Starks, 1907 -- valid -- roughjaw frogfish, ranisapo antenado
  Antennarius bermudensis Schultz, 1957 -- valid -- island frogfish
  Antennarius biocellatus (Cuvier, 1817) -- valid -- fishing frog, toadfish, brackish-water frogfish
  Antennarius coccineus (Lesson, 1831) -- valid -- freckled angler, scarlet frogfish
  Antennarius commersoni (Latreille, 1804) -- invalid -- black fishing frog, Commerson's frogfish
  Antennarius dorehensis Bleeker, 1859 -- valid -- New Guinean frogfish
  Antennarius drombus Jordan and Evermann, 1903 -- invalid
  Antennarius duescus Snyder, 1904 -- valid -- side-jet frogfish
  Antennarius fuliginosus Smith, 1957 -- invalid -- black angler
  Antennarius goramensis Bleeker, 1865 -- invalid -- baggy angler
  Antennarius hispidus (Bloch and Schneider, 1801) -- valid -- hispid frogfish, shaggy angler
  Antennarius indicus Schultz, 1964 -- valid -- Indian frogfish
  Antennarius maculatus (Desjardins, 1840) -- valid -- warty frogfish
  Antennarius moluccensis (Bleeker, 1855) -- invalid -- black angler
  Antennarius multiocellatus (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- longlure frogfish, pescador caña larga, ranisapo ceboso
  Antennarius nexilis Snyder, 1904 -- invalid -- Hawaiian frogfish
  Antennarius nummifer (Cuvier, 1817) -- valid -- coin-bearing frogfish, ocellated fringed fishing frog
  Antennarius nuttingii Garman, 1896 -- invalid -- black frogfish
  Antennarius ocellatus (Bloch and Schneider, 1801) -- valid -- ocellated frogfish, pescador ocelado, ranisapo pescador
  Antennarius oligospilos Bleeker, 1857 -- invalid -- largespotted angler
  Antennarius pardalis (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- leopard frogfish
  Antennarius pauciradiatus Schultz, 1957 -- valid -- dwarf frogfish, dwarfed frogfish, ranisapo enano
  Antennarius pictus (Shaw in Shaw and Nodder, 1794) -- valid -- painted frogfish
  Antennarius polyophthalmus Bleeker, 1852 -- invalid -- many-eyed angler
  Antennarius principis (Valenciennes in Cuvier and Valenciennes, 1837) -- invalid -- white-spotted frogfish
  Antennarius radiosus Garman, 1896 -- valid -- singlespot frogfish, big-eyed frogfish, ranisapo uniocelado
  Antennarius randalli Allen, 1970 -- valid -- Randall's frogfish
  Antennarius rosaceus Smith and Radcliffe in Radcliffe, 1912 -- valid -- rosy frogfish
  Antennarius sanguineus Gill, 1863 -- valid -- bloody frogfish, sanguine frogfish, ranisapo sangrón
  Antennarius sarasa Tanaka, 1916 -- invalid -- calico frogfish
  Antennarius scaber (Cuvier, 1817) -- invalid -- splitlure frogfish
  Antennarius senegalensis Cadenat, 1959 -- valid -- Senegalese frogfish
  Antennarius stellifer Barbour, 1905 -- invalid -- green frogfish
  Antennarius striatus (Shaw in Shaw and Nodder, 1794) -- valid -- striated frogfish, pescador, ranisapo estriado
  Antennarius tenebrosus (Poey, 1852) -- invalid -- flagpole frogfish
  Antennarius tuberosus (Cuvier, 1817) -- invalid -- pygmy frogfish
  Antennarius verrucosus Bean, 1906 -- invalid -- yellow frogfish
  Antennatus Schultz, 1957 -- valid
  Antennatus strigatus (Gill, 1863) -- valid -- bandtail frogfish, ranisapo rabo listado
  Antennatus tuberosus (Cuvier, 1817) -- valid -- tuberculated frogfish, pygmy frogfish
  Anthias Bloch, 1792 -- valid
  Anthias asperilinguis Günther, 1859 -- valid
  Anthias aurulentus Randall and McCosker, 1982 -- invalid
  Anthias bartlettorum Randall and Lubbock, 1981 -- invalid
  Anthias bicolor Randall, 1979 -- invalid
  Anthias boops Forster in Bloch and Schneider, 1801 -- invalid
  Anthias dispar (Herre, 1955) -- invalid
  Anthias evansi Smith, 1954 -- invalid
  Anthias gordensis Wade, 1946 -- invalid
  Anthias ignitus Randall and Lubbock, 1981 -- invalid
  Anthias kelloggi Jordan and Evermann, 1903 -- invalid
  Anthias lori Lubbock and Randall in Fourmanoir and Laboute, 1976 -- invalid
  Anthias menezesi Anderson and Heemstra, 1980 -- valid
  Anthias nicholsi Firth, 1933 -- valid -- yellowfin bass, mero aleta amarilla
  Anthias olivaceus Randall and McCosker, 1982 -- invalid
  Anthias parvirostris Randall and Lubbock, 1981 -- invalid
  Anthias pascalus Jordan and Tanaka, 1927 -- invalid
  Anthias regalis Randall and Lubbock, 1981 -- invalid
  Anthias smithvanizi Randall and Lubbock, 1981 -- invalid
  Anthias taeniatus Klunzinger, 1884 -- invalid
  Anthias tenuis Nichols, 1920 -- valid -- threadnose bass, mero naricita
  Anthias tuka Herre and Montalban in Herre, 1927 -- invalid
  Anthias ventralis Randall, 1979 -- invalid
  Anthias ventralis hawaiiensis Randall, 1979 -- invalid
  Anthias ventralis ventralis Randall, 1979 -- invalid
  Anthias woodsi Anderson and Heemstra, 1980 -- valid -- swallowtail bass
  Anticitharus Günther, 1880 -- invalid
  Anticitharus annulatus Weber, 1913 -- invalid
  Antigonia Lowe, 1843 -- valid -- red boarfishes
  Antigonia capros Lowe, 1843 -- valid -- deepbody boarfish, verraco alto, elevado
  Antigonia combatia Berry and Rathjen, 1959 -- valid -- shortspine boarfish, pez pecarí
  Antigonia eos Gilbert, 1905 -- valid
  Antigonia rubescens (Günther, 1860) -- valid -- boarfish
  Antigonia rubicunda Ogilby, 1910 -- valid -- roseate boarfish
  Antigonia steindachneri Jordan and Evermann in Jordan and Fowler, 1902 -- invalid
  Antigoniinae -- valid
  Antimora Günther, 1878 -- valid
  Antimora microlepis Bean, 1890 -- valid -- Pacific flatnose, mora viola, finescale antimora, finescale codling
  Antimora rostrata (Günther, 1878) -- valid -- blue hake, blue antimora, flatnose codling, antimore bleu
  Antonichthys Bauchot and Blanc, 1961 -- invalid
  Anyperodon Günther, 1859 -- valid
  Anyperodon leucogrammicus (Valenciennes in Cuvier and Valenciennes, 1828) -- valid -- slender grouper
  Aotea Phillipps, 1926 -- invalid
  Aotea acus Phillipps, 1926 -- invalid
  Apareiodon Eigenmann, 1916 -- valid
  Apareiodon caquetae Fowler, 1945 -- invalid
  Apareiodon pongoense Allen in Eigenmann and Allen, 1942 -- invalid
  Apeltes DeKay, 1842 -- valid -- fourspine sticklebacks
  Apeltes quadracus (Mitchill, 1815) -- valid -- fourspine stickleback, bloody stickleback, épinoche à quatre épines
  Aphanius Nardo, 1827 -- valid
  Aphanius dispar (Rüppell, 1829) -- valid -- afty
  Aphanius iberus (Valenciennes in Cuvier and Valenciennes, 1846) -- valid -- Spanish toothcarp
  Aphareus Cuvier in Cuvier and Valenciennes, 1830 -- valid
  Aphareus flavivultus Jenkins, 1901 -- invalid
  Aphareus furcatus (Lacepède, 1801) -- invalid -- olive smalltooth jobfish, smalltoothed jobfish
  Aphareus rutilans Cuvier in Cuvier and Valenciennes, 1830 -- valid -- rusty smalltooth jobfish, smalltoothed jobfish, Ironjaw, Rusty jobfish, vivaneau rouillé, pargo bermellón
  Aphia Risso, 1827 -- valid
  Aphia minuta (Risso, 1810) -- valid -- transparent goby, transparent goby
  Aphoristia Kaup, 1858 -- invalid
  Aphos Hubbs and Schultz, 1939 -- valid
  Aphredoderus Lesueur in Cuvier and Valenciennes, 1833 -- valid -- pirate perches
  Aphredoderus sayanus (Gilliams, 1824) -- valid -- pirate perch
  Aphyocharax Günther, 1868 -- valid
  Aphyocharax alburnus (Günther, 1869) -- valid
  Aphyocharax analis Nichols, 1915 -- invalid
  Aphyocharax anisitsi Eigenmann and Kennedy, 1903 -- valid -- bloodfin, bloodfin
  Aphyocharax filigerus Cope, 1870 -- invalid
  Aphyocharax maxillaris Ulrey, 1894 -- invalid
  Aphyocharax paraguayensis Eigenmann, 1915 -- invalid -- dawn tetra, dawn tetra
  Aphyocharax rubropinnis Pappenheim, 1922 -- invalid -- bloodfin, bloodfin
  Aphyonus Günther, 1878 -- valid
  Aphyonus bolini Nielsen, 1974 -- valid
  Aphyonus brevidorsalis Nielsen, 1969 -- valid
  Aphyonus gelatinosus Günther, 1878 -- valid
  Aphyonus rassi Nielsen, 1975 -- valid
  Aphyosemion Myers, 1924 -- valid -- african lyretails, African lyretails
  Aphyosemion ahli Myers, 1933 -- valid -- Ahl's killi
  Aphyosemion arnoldi (Boulenger, 1908) -- invalid -- Arnold's lyretail
  Aphyosemion australe (Rachow, 1921) -- valid -- lyretail, lyretail panchax, lyretail
  Aphyosemion bertholdi Roloff, 1965 -- invalid
  Aphyosemion bitaeniatum (Ahl, 1924) -- valid -- striped lyretail, two-stripe aphyosemion, striped lyretail
  Aphyosemion bivittatum (Lönnberg, 1895) -- valid -- red aphyosemion, twostriped killi, twostripe lyretail, twostriped killi, red aphyosemion
  Aphyosemion brueningi (Roloff, 1971) -- invalid -- Bruening's killi
  Aphyosemion bualanum (Ahl, 1924) -- valid -- kekem-pachtkarpfling
  Aphyosemion calliurum (Boulenger, 1911) -- valid -- banner lyretail, banner lyretail
  Aphyosemion calliurum ahli Myers, 1933 -- invalid
  Aphyosemion cameronense (Boulenger, 1903) -- valid -- Cameron killi, Cameroon roundtailed aphyosemion
  Aphyosemion christyi (Boulenger, 1915) -- valid -- Christy's lyretail
  Aphyosemion cognatum Meinken, 1951 -- valid -- redspeckled killi, redspeckled killi, redspot panchax
  Aphyosemion cyanostictum Lambert and Géry, 1968 -- valid -- Gabon jewelfish
  Aphyosemion deltaense Radda, 1976 -- invalid
  Aphyosemion exigoideum Radda and Huber, 1977 -- valid -- false jewell killi
  Aphyosemion exiguum (Boulenger, 1911) -- valid -- jewel killi
  Aphyosemion filamentosum (Meinken, 1933) -- invalid -- plumed lyrefish, plumed lyretail, plumed lyrefish, plumed lyretail
  Aphyosemion gardneri (Boulenger, 1911) -- invalid -- steel-blue aphyosemion, steel-blue aphyosemion
  Aphyosemion gulare (Boulenger, 1902) -- invalid
  Aphyosemion liberiense (Boulenger, 1908) -- invalid
  Aphyosemion liberiensis (Boulenger, 1908) -- invalid
  Aphyosemion loennbergii (Boulenger, 1903) -- valid -- lonnberg's aphyosemion, lonnberg's aphyosemion
  Aphyosemion marmoratum Radda, 1973 -- invalid -- marbled lyretail
  Aphyosemion meinkeni Myers, 1933 -- invalid -- meinken's aphyosemion, Meinken's aphyosemion
  Aphyosemion mirabile Radda, 1970 -- invalid
  Aphyosemion multicolor (Meinken, 1930) -- invalid -- manycolored lyretail, manycolored lyretail, two-striped aphyosemion
  Aphyosemion occidentale Clausen, 1966 -- invalid
  Aphyosemion occidentale toddi Clausen, 1966 -- invalid
  Aphyosemion oeseri (Schmidt, 1928) -- invalid -- emerald aphyosemion, emerald aphyosemion
  Aphyosemion petersi (Sauvage, 1882) -- valid -- Peter's aphyosemion, Peter's prachtkarpfling
  Aphyosemion puerzli Radda and Scheel, 1974 -- invalid
  Aphyosemion riggenbachi (Ahl, 1924) -- valid -- Riggenbach's lyretail
  Aphyosemion roloffi Roloff, 1936 -- invalid -- roloff's aphyosemion, roloff's aphyosemion
  Aphyosemion sjoestedti (Lönnberg, 1895) -- invalid -- red aphyosemion, red aphyosemion
  Aphyosemion sjostedti (Lönnberg, 1895) -- invalid -- golden pheasant killy, golden pheasant killy
  Aphyosemion striatum (Boulenger, 1911) -- valid -- Escherich's killi
  Aphyosemion toddi Clausen, 1966 -- invalid
  Aphyosemion volcanum Radda and Wildekamp, 1977 -- valid
  Aphyosemion walkeri (Boulenger, 1911) -- invalid
  Apionichthys Kaup, 1858 -- valid
  Apionichthys unicolor (Günther, 1862) -- invalid
  Apistogramma Regan, 1913 -- valid
  Apistogramma agassizii (Steindachner, 1875) -- valid -- Agassiz' dwarf cichlid
  Apistogramma bitaeniata Pellegrin, 1936 -- valid -- banded dwarf cichlid, banded dwarf cichlid
  Apistogramma borellii (Regan, 1906) -- valid -- Borelli's dwarf cichlid
  Apistogramma cacatuoides Hoedeman, 1951 -- valid -- cockatoo dwarf cichlid, cockatoo dwarf cichlid
  Apistogramma commbrae (Regan, 1906) -- valid -- corumba dwarf ciclid, corumba dwarf ciclid
  Apistogramma macmasteri Kullander, 1979 -- valid -- MacMaster's dwarf cichlid
  Apistogramma pleurotaenia (Regan, 1909) -- valid -- chequered dwarf cichlid, chequered dwarf cichlid
  Apistogramma ramirezi Myers and Harry, 1948 -- invalid -- ram, ram
  Apistogramma reitzigi Mitsch, 1938 -- invalid -- dwarf cichlid, dwarf cichlid
  Apistogramma steindachneri (Regan, 1908) -- valid -- Steindachner's dwarf cichlid
  Apistogramma trifasciata (Eigenmann and Kennedy, 1903) -- valid -- three-striped dwarf cichlid, three-striped dwarf cichlid
  Apistogramma weisei Ahl, 1936 -- invalid -- Weise's dwarf cichlid
  Apistops Ogilby, 1911 -- valid
  Apistops caloundra (De Vis, 1886) -- valid
  Apistus Cuvier in Cuvier and Valenciennes, 1829 -- valid
  Apistus caloundra De Vis, 1886 -- invalid -- shortspined waspfish
  Apistus carinatus (Bloch and Schneider, 1801) -- valid -- ocellated waspfish
  Apistus taenianotus Cuvier, 1829 -- invalid
  Aplatophis Böhlke, 1956 -- valid
  Aplatophis chauliodus Böhlke, 1956 -- valid -- tusky eel
  Apletodon Briggs, 1955 -- valid
  Apletodon microcephalus (Brook, 1890) -- invalid
  Apletodon pellegrini (Chabanaud, 1925) -- valid
  Aploactis Temminck and Schlegel, 1843 -- valid
  Aploactisoma Castelnau, 1872 -- valid
  Aploactisoma milesii (Richardson, 1850) -- valid -- velvetfish
  Aplocheilichthys Bleeker, 1863 -- valid
  Aplocheilichthys flavipinnis Meinken, 1932 -- invalid
  Aplocheilichthys johnstoni (Günther, 1894) -- invalid -- Johnston's lampeye
  Aplocheilichthys macrophthalmus Meinken, 1932 -- invalid -- red lampeye, emerald green lampeye, lamp-eye panchax, lamp-eye panchax
  Aplocheilichthys pumilus (Boulenger, 1906) -- invalid -- Tanganyika lampeye
  Aplocheilichthys spilauchen (Duméril, 1861) -- valid -- banded lampeye
  Aplocheilus McClelland, 1839 -- valid
  Aplocheilus blockii (Arnold, 1911) -- valid -- green panchax, green panchax
  Aplocheilus dayi (Steindachner, 1892) -- valid -- striped topminnow, Ceylon killifish, striped topminnow
  Aplocheilus lineatus (Valenciennes in Cuvier and Valenciennes, 1846) -- valid -- sparkling panchax, Malabar killi, sparkling panchax, striped panchax
  Aplocheilus panchax (Hamilton, 1822) -- valid -- blue panchax
  Aplocheilus parvus (Sundara Raj, 1916) -- valid -- dwarf panchax
  Aplochiton Jenyns, 1842 -- valid
  Aplodactylus Valenciennes in Cuvier and Valenciennes, 1832 -- valid
  Aplodactylus meandratus Richardson, 1842 -- invalid -- marblefish, marblefish
  Aplodinotus grunniens Rafinesque, 1819 -- valid -- freshwater drum, roncador de agua dulce, malachigan
  Apodichthys Girard, 1854 -- valid -- eel-like blennies, gunnels
  Apodichthys flavidus Girard, 1854 -- valid -- penpoint gunnel
  Apodichthys fucorum Jordan and Gilbert, 1880 -- valid -- rockweed gunnel, espinoso de marea zacatero
  Apodocreedia de Beaufort, 1948 -- valid
  Apodocreedia vanderhorsti de Beaufort, 1948 -- valid -- hooknose burrower
  Apogon Lacepède, 1801 -- valid -- cardinalfishes, common cardinalfishes
  Apogon affinis (Poey, 1875) -- valid -- bigtooth cardinalfish, cardenal dentudo, cardenal dientón
  Apogon alutus Jordan and Gilbert, 1882 -- invalid
  Apogon americanus Castelnau, 1855 -- valid
  Apogon angustatus (Smith and Radcliffe in Radcliffe, 1911) -- valid -- broadstriped cardinalfish, broadstriped cardinalfish
  Apogon anisolepis Böhlke and Randall, 1968 -- invalid -- oddscale cardinalfish, oddscale cardinalfish
  Apogon apogonides (Bleeker, 1856) -- invalid -- shorttooth cardinalfish, shorttooth cardinalfish
  Apogon aroubiensis Hombron and Jacquinot in Jacquinot and Guichenot, 1853 -- valid
  Apogon atripes (Ogilby, 1916) -- valid -- blackfinned cardinalfish, blackfinned cardinalfish
  Apogon aureus (Lacepède, 1802) -- valid -- golden cardinalfish, golden cardinalfish
  Apogon auritus Valenciennes in Cuvier and Valenciennes, 1831 -- invalid
  Apogon aurolineatus (Mowbray in Breder, 1927) -- valid -- bridle cardinalfish, cardenal frenado
  Apogon bandanensis Bleeker, 1854 -- valid
  Apogon binotatus (Poey, 1867) -- valid -- barred cardinalfish, cardenal barreado, cardenal rayado
  Apogon carinatus Cuvier in Cuvier and Valenciennes, 1828 -- valid
  Apogon coccineus Rüppell, 1838 -- valid -- ruby cardinal, ruby cardinal
  Apogon conklini (Silvester, 1915) -- invalid
  Apogon cookii Macleay, 1881 -- valid -- blackbanded cardinalfish
  Apogon crassiceps Garman, 1903 -- valid
  Apogon cyanosoma Bleeker, 1853 -- valid
  Apogon doederleini Jordan and Snyder, 1901 -- valid
  Apogon doryssa (Jordan and Seale, 1906) -- valid
  Apogon ellioti Day, 1875 -- invalid
  Apogon endekataenia Bleeker, 1852 -- valid -- elevenbanded cardinalfish, elevenbanded cardinalfish
  Apogon enigmaticus (Smith, 1961) -- valid -- diamond cardinalfish, diamond cardinalfish
  Apogon enneastigma Rüppell, 1838 -- invalid -- ninespot cardinalfish, ninespot cardinalfish
  Apogon erythrinus Snyder, 1904 -- valid
  Apogon evermanni Jordan and Snyder, 1904 -- valid -- oddscaled cardinalfish, cardenal coralero, oddscale cardinalfish
  Apogon exostigma (Jordan and Starks in Jordan and Seale, 1906) -- valid
  Apogon fraenatus Valenciennes, 1832 -- valid -- spurcheek cardinalfish
  Apogon fuscus Quoy and Gaimard, 1825 -- valid
  Apogon guadalupensis (Osburn and Nichols, 1916) -- valid -- cardenal mexicano, Guadalupe cardinalfish, Guadaloupe cardinalfish
  Apogon guamensis Valenciennes, 1832 -- valid -- pearl cardinalfish, pearl cardinalfish
  Apogon hyalosoma Bleeker, 1852 -- valid -- river cardinalfish
  Apogon imberbis (Linnaeus, 1758) -- valid -- cardinalfish, king of the mullets, cardinalfish, king of the mullets
  Apogon kallopterus Bleeker, 1856 -- valid -- spinyhead cardinalfish, 'upalalu, spinyhead cardinalfish
  Apogon kiensis Jordan and Snyder, 1901 -- valid -- rifle cardinalfish, rifle cardinalfish
  Apogon lachneri Böhlke, 1959 -- valid -- whitestar cardinalfish, cardenal estrella blanca
  Apogon lateralis Valenciennes, 1832 -- valid -- robbermask cardinalfish
  Apogon leptacanthus Bleeker, 1856-57 -- valid -- longspine cardinal, longspine cardinal
  Apogon leptocaulus Gilbert, 1972 -- valid -- slendertail cardinalfish
  Apogon lineatus Temminck and Schlegel, 1842 -- valid -- verticalstriped cardinalfish, verticalstriped cardinalfish
  Apogon maculatus (Poey, 1860) -- valid -- flamefish, cardenal manchado, saddletailed cardinalfish
  Apogon maculiferus Garrett, 1864 -- valid
  Apogon melanotaenia Regan, 1905 -- invalid -- blackbanded cardinalfish, blackbanded cardinalfish
  Apogon menesemops Lachner, 1953 -- invalid
  Apogon menesemus Jenkins, 1903 -- valid -- 'upapalu
  Apogon multitaeniatus Cuvier in Cuvier and Valenciennes, 1828 -- valid -- smallscale cardinalfish, smallscale cardinalfish
  Apogon nigripes Playfair in Playfair and Günther, 1867 -- valid -- blackfoot cardinal, blackfoot cardinal
  Apogon nigripinnis Cuvier in Cuvier and Valenciennes, 1828 -- valid -- bullseye cardinalfish, bullseye cardinalfish
  Apogon nigrofasciatus Lachner, 1953 -- valid
  Apogon nitidus (Smith, 1961) -- invalid -- bluespot cardinal, bluespot cardinal
  Apogon novaeguineae Valenciennes, 1832 -- valid
  Apogon novemfasciatus Cuvier in Cuvier and Valenciennes, 1828 -- valid -- nineband cardinalfish, nineband cardinalfish
  Apogon nubilus Garman, 1903 -- invalid
  Apogon ocellatus Fourmanoir and Crosnier, 1964 -- invalid
  Apogon phenax Böhlke and Randall, 1968 -- valid -- mimic cardinalfish, cardenal mimético
  Apogon pigmentarius (Poey, 1860) -- invalid
  Apogon pillionatus Böhlke and Randall, 1968 -- valid -- broadsaddle cardinalfish, cardenal colirrayada
  Apogon planifrons Longley and Hildebrand, 1940 -- valid -- pale cardinalfish, cardenal pálido
  Apogon pseudomaculatus Longley, 1932 -- valid -- twospot cardinalfish, cardenal de dos puntos, cardenal dos puntos
  Apogon quadrifasciatus Cuvier in Cuvier and Valenciennes, 1828 -- invalid -- fourband cardinalfish, fourband cardinalfish
  Apogon quadrisquamatus Longley, 1934 -- valid -- sawcheek cardinalfish, cardenal espinoso
  Apogon queketti Gilchrist, 1903 -- valid -- spotfin cardinal, spotfin cardinal
  Apogon savayensis Günther, 1872 -- valid -- ghost cardinal, ghost cardinal
  Apogon sellicauda Evermann and Marsh, 1900 -- invalid -- saddletailed cardinalfish, saddletailed cardinalfish
  Apogon semilineatus Temminck and Schlegel, 1842 -- valid -- barface cardinalfish, barface cardinalfish
  Apogon semiornatus Peters, 1876 -- valid -- threeband cardinalfish, threeband cardinalfish
  Apogon septemstriatus Günther, 1880 -- valid -- sevenband cardinalfish, sevenband cardinalfish
  Apogon snyderi Jordan and Evermann, 1903 -- invalid
  Apogon taeniatus Cuvier in Cuvier and Valenciennes, 1828 -- valid -- twobelt cardinalfish, twobelt cardinalfish
  Apogon taeniopterus Bennett, 1836 -- valid
  Apogon thermalis Cuvier in Cuvier and Valenciennes, 1829 -- valid -- translucent cardinalfish, translucent cardinalfish
  Apogon townsendi (Breder, 1927) -- valid -- belted cardinalfish, cardenal con cinto, cardenal cincho
  Apogon trimaculatus Cuvier in Cuvier and Valenciennes, 1828 -- valid
  Apogon truncatus Bleeker, 1854 -- valid -- Elliot's cardinalfish
  Apogon unicolor Döderlein in Steindachner and Döderlein, 1883 -- valid
  Apogon variegatus Fourmanoir and Crosnier, 1964 -- invalid
  Apogonichthys Bleeker, 1854 -- valid
  Apogonops Ogilby, 1896 -- valid
  Apolemichthys Burton, 1934 -- valid
  Apolemichthys xanthurus (Bennett, 1833) -- valid -- yellowbrown angelfish
  Aporops Schultz, 1943 -- valid
  Aporops bilinearis Schultz, 1943 -- valid
  Aprion Valenciennes in Cuvier and Valenciennes, 1830 -- valid
  Aprion macrophthalmus (Müller and Troschel in Schomburgk, 1848) -- invalid -- voraz, voraz
  Aprion virescens Valenciennes in Cuvier and Valenciennes, 1830 -- valid -- blue-gray snapper, Green Jobfish, vivaneau job, pargo verde
  Aprionodon Gill, 1861 -- invalid
  Aprionodon acutidens queenslandicus Whitley, 1939 -- invalid
  Aprionodon brevipinna (Müller and Henle, 1839) -- invalid
  Aprionodon caparti Poll, 1951 -- invalid
  Aprionodon isodon (Müller and Henle, 1839) -- invalid
  Aprionodon punctatus Gill, 1861 -- invalid
  Aprionodon sitankaiensis Herre, 1934 -- invalid
  Apristurus Garman, 1913 -- valid -- demon cat sharks, ghost cat sharks
  Apristurus canutus Springer and Heemstra in Springer, 1979 -- valid -- hoary catshark, hoary cat shark
  Apristurus herklotsi (Fowler, 1934) -- valid -- longfin catshark
  Apristurus indicus (Brauer, 1906) -- valid -- smallbelly catshark, smallbelly cat shark
  Apristurus investigatoris (Misra, 1962) -- valid -- broadnose catshark
  Apristurus japonicus Nakaya, 1975 -- valid -- Japanese catshark
  Apristurus kampae Taylor, 1972 -- valid -- longnose catshark
  Apristurus laurussonii (Saemundsson, 1922) -- valid -- Iceland catshark, Iceland cat shark
  Apristurus longicephalus Nakaya, 1975 -- valid -- longhead catshark
  Apristurus maderensis Cadenat and Maul, 1966 -- invalid -- Madeira catshark
  Apristurus manis (Springer, 1979) -- valid -- ghost catshark, ghost cat shark
  Apristurus microps (Gilchrist, 1922) -- valid -- smalleye catshark, smalleye cat shark
  Apristurus nasutus de Buen, 1959 -- valid -- largenose catshark
  Apristurus parvipinnis Springer and Heemstra in Springer, 1979 -- valid -- smallfin catshark, smallfin cat shark
  Apristurus platyrhynchus (Tanaka, 1909) -- valid -- spatulasnout catshark
  Apristurus profundorum (Goode and Bean, 1896) -- valid -- deepwater catshark, deepwater cat shark
  Apristurus riveri Bigelow and Schroeder, 1944 -- valid -- broadgill catshark, broadgill cat shark, gatica afilada
  Apristurus saldanha (Barnard, 1925) -- valid -- Saldanha catshark
  Apristurus sibogae (Weber, 1913) -- valid -- pale catshark
  Apristurus sinensis Chu and Hu in Chu, Meng, Hu and Li, 1981 -- valid -- South China catshark
  Apristurus spongiceps (Gilbert, 1905) -- valid -- spongehead catshark
  Apristurus stenseni (Springer, 1979) -- valid -- Panama ghost catshark
  Apristurus verweyi (Fowler, 1934) -- invalid -- borneo catshark
  Aprodon cortezianus Gilbert, 1890 -- invalid -- bigfin eelpout
  Aprognathodon Böhlke, 1967 -- valid
  Aprognathodon platyventris Böhlke, 1967 -- valid -- stripe eel
  Apsilus Valenciennes in Cuvier and Valenciennes, 1830 -- valid
  Apsilus dentatus Guichenot, 1853 -- valid -- arnillo, pargo lamparita, Black Snapper, vivaneau noir, pargo mulato
  Apsilus fuscus Valenciennes in Cuvier and Valenciennes, 1830 -- valid -- brown sea-perch, African forktail snapper, Vivaneau fourche d'Afrique, Pargo tijera
  Apterichthus caecus (Linnaeus, 1758) -- invalid
  Apterichtus Duméril, 1806 -- valid
  Apterichtus anguiformis (Peters, 1877) -- valid
  Apterichtus ansp (Böhlke, 1968) -- valid -- academy eel
  Apterichtus caecus (Linnaeus, 1758) -- valid
  Apterichtus kendalli (Gilbert, 1891) -- valid -- finless eel
  Apteronotus Lacepède, 1800 -- valid
  Apteronotus albifrons (Linnaeus, 1766) -- valid -- apteronotid eel, apteronotid eel
  Apterygopectus Ojeda R., 1978 -- invalid
  Aptocyclus De la Pylaie, 1835 -- valid
  Aptocyclus ventricosus (Pallas, 1769) -- valid -- smooth lumpsucker
  Aptychotrema Norman, 1926 -- valid
  Aptychotrema bougainvillii (Müller and Henle, 1841) -- valid
  Aptychotrema rostrata (Shaw in Shaw and Nodder, 1794) -- valid
  Aptychotrema vincentiana (Haacke, 1885) -- valid
  Aracana Gray, 1838 -- valid
  Aracana ornata (Gray, 1838) -- valid -- ornate cowfish
  Araiophos Grey, 1961 -- valid
  Aralea kaupii Bleeker, 1860 -- invalid -- Sumatra tonguefish
  Arapaima gigas (Cuvier, 1822) -- invalid -- giant arapaima, arapaima, giant arapaima, pirarucu, pirarucú
  Archamia Gill, 1863 -- valid
  Archamia fucata (Cantor, 1849) -- valid -- redbarred cardinal, redbarred cardinal
  Archamia lineolata (Cuvier in Cuvier and Valenciennes, 1828) -- valid -- crossbanded cardinalfish, crossbanded cardinalfish
  Archamia mozambiquensis Smith, 1961 -- valid -- Mozambique cardinal
  Archaulus Gilbert and Burke, 1912 -- invalid
  Archaulus biseriatus Gilbert and Burke, 1912 -- invalid -- scaled sculpin
  Archistes Jordan and Gilbert in Jordan and Evermann, 1898 -- valid
  Archistes plumarius Jordan and Gilbert in Jordan and Evermann, 1898 -- valid
  Archolaemus Korringa, 1970 -- valid
  Archomenidia Jordan and Hubbs, 1919 -- invalid
  Archoplites Gill, 1861 -- valid -- Sacramento perches
  Archoplites interruptus (Girard, 1854) -- valid -- Sacramento Perch
  Archosargus Gill, 1865 -- valid -- sheepshead porgies
  Archosargus probatocephalus (Walbaum, 1792) -- valid -- sheepshead, sargo chopa
  Archosargus rhomboidalis (Linnaeus, 1758) -- valid -- sea bream, salema, sargo amarillo
  Arcos Schultz, 1944 -- valid
  Arcos macrophthalmus (Günther, 1861) -- valid -- padded clingfish, chupapiedra acojinada
  Arctogadus Dryagin, 1932 -- valid
  Arctogadus borisovi Dryagin, 1932 -- valid -- toothed cod, east Siberian cod
  Arctogadus glacialis (Peters, 1872) -- valid -- polar cod, Arctic cod
  Arctoscopus Jordan and Evermann, 1896 -- valid -- electric stargazers
  Arctoscopus japonicus (Steindachner, 1881) -- valid -- sailfin sandfish
  Arelia Kaup, 1858 -- invalid
  Arelia kaupii Bleeker, 1860 -- invalid -- Sumatra tonguefish
  Areliscus Jordan & Snyder, 1900 -- invalid
  Areliscus marleyi (Regan, 1921) -- invalid -- threeline tonguefish
  Argentina Linnaeus, 1758 -- valid
  Argentina brucei Cohen and Atsaides, 1969 -- valid
  Argentina elongata Hutton, 1879 -- valid -- silverside
  Argentina georgei Cohen and Atsaides, 1969 -- valid
  Argentina leioglossus Valenciennes in Cuvier and Valenciennes, 1848 -- invalid
  Argentina semifasciata Kishinouye, 1904 -- invalid -- Japanese silverside
  Argentina sialis Gilbert, 1890 -- valid -- argentina del Pacífico, Pacific argentine
  Argentina silus (Ascanius, 1775) -- valid -- Atlantic argentine, grande argentine
  Argentina sphyraena Linnaeus, 1758 -- valid -- silver smelt
  Argentina stewarti Cohen and Atsaides, 1969 -- valid
  Argentina striata Goode and Bean, 1896 -- valid -- striated argentine, argentina estriada, argentina
  Argonectes Böhlke and Myers, 1956 -- valid
  Argonectes scapularis Böhlke and Myers, 1956 -- invalid
  Argyripnus Gilbert and Cramer, 1897 -- valid
  Argyripnus atlanticus Maul, 1952 -- valid
  Argyropelecus Cocco, 1829 -- valid -- hatchetfishes
  Argyropelecus aculeatus Valenciennes in Cuvier and Valenciennes, 1850 -- valid -- Atlantic silver hatchetfish, marine hatchetfish, pez hacha plateado, silver hatchetfish
  Argyropelecus affinis Garman, 1899 -- valid -- deepsea hatchetfish, Pacific hatchetfish, pez hacha laminado
  Argyropelecus gigas Norman, 1930 -- valid -- greater silver hatchetfish
  Argyropelecus hemigymnus Cocco, 1829 -- valid -- half-naked hatchetfish, pez hacha ganchudo, short silver hatchetfish, silver hatchetfish
  Argyropelecus lychnus Garman, 1899 -- valid
  Argyropelecus sladeni Regan, 1908 -- valid -- silvery hatchetfish
  Argyrosomus De la Pylaie, 1835 -- valid
  Argyrosomus argentatus (Houttuyn, 1782) -- invalid
  Argyrosomus hololepidotus (Lacepède, 1801) -- valid
  Argyrosomus hololepoditus (Lacepède, 1801) -- invalid -- cob, kob, cob, kob
  Argyrosomus japonicus (Temminck and Schlegel, 1843) -- valid -- Japanese croaker
  Argyrozona Smith, 1938 -- valid
  Argyrozona argyrozona (Valenciennes in Cuvier and Valenciennes, 1830) -- valid
  Arhynchobatis Waite, 1909 -- valid
  Arhynchobatis asperrimus Waite, 1909 -- valid
  Ariomma Jordan and Snyder, 1904 -- valid
  Ariomma africana (Gilchrist and Von Bonde, 1923) -- invalid -- African driftfish
  Ariomma bondi Fowler, 1930 -- valid -- pastorcillo lucia, silver-rag, pastorcillo lucía
  Ariomma evermanni Jordan and Snyder, 1907 -- valid
  Ariomma indica (Day, 1871) -- valid -- Indian driftfish
  Ariomma lurida Jordan and Snyder, 1904 -- valid
  Ariomma melanum (Ginsburg, 1954) -- valid -- brown driftfish, pastorcillo café
  Ariomma nigriargenteus (Ginsburg, 1954) -- invalid
  Ariomma regulus (Poey, 1868) -- valid -- pastorcillo aquillado, spotted driftfish
  Ariopsis Gill, 1861 -- valid
  Ariopsis assimilis (Günther, 1864) -- valid -- Maya sea catfish, bagre maya
  Ariosoma Swainson, 1838 -- valid
  Ariosoma acuta (Swainson, 1839) -- invalid
  Ariosoma anale (Poey, 1860) -- valid -- longtrunk conger, congrio estirado
  Ariosoma balearicum (Delaroche, 1809) -- valid -- bandtooth conger, congrio algino, congrio balear
  Ariosoma coquettei Smith and Kanazawa, 1977 -- valid
  Ariosoma marginatum (Vaillant and Sauvage, 1875) -- valid
  Ariosoma selenops Reid, 1934 -- valid
  Aristostomias Zugmayer, 1913 -- valid
  Aristostomias scintillans (Gilbert, 1915) -- valid -- shiny loosejaw
  Arius Valenciennes in Cuvier and Valenciennes, 1840 -- valid -- hardhead catfishes
  Arius australis Günther, 1867 -- invalid
  Arius despaxi Puyo, 1936 -- invalid
  Arius felis (Linnaeus, 1766) -- invalid -- hardhead catfish
  Arius grandicassis Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Arius luniscutis Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Arius parkeri (Traill, 1832) -- invalid
  Arius parmocassis Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Arius phrygiatus Valenciennes in Cuvier and Valenciennes, 1840 -- valid
  Arius quadriscutis Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Arius rugispinis Valenciennes in Cuvier and Valenciennes, 1840 -- valid
  Arius spixii (Agassiz in Spix and Agassiz, 1829) -- invalid
  Arius stricticassis Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Arius vandeli Puyo, 1936 -- invalid
  Arnoglossus Bleeker, 1862 -- valid -- scald fishes
  Arnoglossus andrewsi Kurth, 1954 -- valid
  Arnoglossus arabicus Norman, 1939 -- valid
  Arnoglossus cacatuae Ogilby, 1910 -- invalid
  Arnoglossus capensis Boulenger, 1898 -- valid -- Cape flounder
  Arnoglossus dalgleishi (von Bonde, 1922) -- valid -- East Coast flounder
  Arnoglossus debilis (Gilbert, 1905) -- valid
  Arnoglossus fisoni Ogilby, 1898 -- valid -- Fison's flounder
  Arnoglossus imperialis (Rafinesque, 1810) -- valid
  Arnoglossus intermedius (Bleeker, 1865) -- invalid -- intermediate flounder
  Arnoglossus kessleri Schmidt, 1915 -- valid
  Arnoglossus laterna (Walbaum, 1792) -- valid -- scaldfish
  Arnoglossus macrolophus Alcock, 1889 -- valid -- largecrested flounder
  Arnoglossus polylepis Alcock, 1889 -- invalid
  Arnoglossus rueppelii (Cocco, 1844) -- valid
  Arnoglossus thori Kyle, 1913 -- valid -- Grohmann's scaldfish
  Arnoldichthys Myers, 1926 -- valid
  Arnoldichthys spilopterus (Boulenger, 1909) -- valid -- African red-eyed characin
  Arothron Müller, 1841 -- valid -- fat puffers
  Arothron hispidus (Linnaeus, 1758) -- valid -- poison puffer, botete panza rayada, stripebelly puffer, Stripebelly Puffer
  Arothron immaculatus (Bloch & Schneider, 1801) -- valid -- immaculate blowfish, plain toado
  Arothron inconditus Smith, 1958 -- valid -- bellystriped blaasop
  Arothron manilensis (Marion de Procé, 1822) -- valid -- striped puffer
  Arothron meleagris (Anonymous, 1798) -- valid -- botete aletas punteadas, guineafowl puffer, 'opu hue, Guineafowl Puffer
  Arothron nigropunctatus (Bloch & Schneider, 1801) -- valid -- brown puffer
  Arothron reticularis (Bloch & Schneider, 1801) -- valid
  Arothron stellatus (Anonymous, 1798) -- valid -- starry blowfish
  Arrhamphus Günther, 1866 -- valid
  Arrhamphus sclerolepis Günther, 1866 -- valid -- shortbeaked garfish, shortbeaked garfish
  Arripis Jenyns, 1840 -- valid
  Arripis georgianus (Valenciennes in Cuvier and Valenciennes, 1831) -- valid -- south australian roughy, South Australian roughy
  Arripis trutta (Forster in Bloch and Schneider, 1801) -- valid -- australian salmon, salmon trout, Australian salmon, salmon trout
  Artediellus Jordan, 1885 -- valid -- hookear sculpins
  Artediellus atlanticus Jordan and Evermann, 1898 -- valid -- Atlantic hookear sculpin, hameçon atlantique
  Artediellus camchaticus Gilbert and Burke, 1912 -- valid
  Artediellus europaeus Knipowitch, 1907 -- invalid -- European hookear sculpin
  Artediellus gomojunovi Taranetz, 1933 -- valid -- Gomojunov's hookear sculpin, spinyhook sculpin
  Artediellus miacanthus Gilbert and Burke, 1912 -- valid
  Artediellus pacificus Gilbert, 1896 -- valid -- hookhorned sculpin, hookhorn sculpin
  Artediellus scaber Knipowitsch, 1907 -- valid -- hamecon, rough hookear sculpin
  Artediellus uncinatus (Reinhardt, 1834) -- valid -- Arctic hookear sculpin, hameçon neigeux
  Artedius Girard, 1856 -- valid
  Artedius corallinus (Hubbs, 1926) -- valid -- coralline sculpin, charrasco coralino
  Artedius creaseri (Hubbs, 1926) -- invalid
  Artedius fenestralis Jordan and Gilbert, 1883 -- valid -- padded sculpin
  Artedius harringtoni (Starks, 1896) -- valid -- scalyhead sculpin
  Artedius lateralis (Girard, 1854) -- valid -- smoothhead sculpin, charrasco cabeza lisa
  Artedius meanyi (Jordan and Starks, 1895) -- invalid
  Artedius notospilotus Girard, 1856 -- valid -- bonehead sculpin, bonyhead sculpin, charrasco huesudo
  Artisia de Beaufort, 1939 -- invalid
  Arusetta Fraser-Brunner, 1933 -- valid
  Asarcenchelys McCosker, 1985 -- valid
  Asarcenchelys longimanus McCosker, 1985 -- valid -- emaciated worm eel
  Ascelichthys Jordan and Gilbert, 1880 -- valid
  Ascelichthys rhodorus Jordan and Gilbert, 1880 -- valid -- rosylip sculpin
  Asemichthys Gilbert, 1912 -- valid
  Asemichthys taylori Gilbert, 1912 -- valid -- spinynose sculpin
  Aseraggodes Kaup, 1858 -- valid
  Aseraggodes kobensis (Steindachner, 1896) -- valid
  Askoldia Pavlenko, 1910 -- valid
  Aspasma Jordan and Fowler, 1902 -- valid
  Aspasma minima (Döderlein in Steindachner and Döderlein, 1887) -- valid
  Aspicottus Girard, 1854 -- invalid
  Aspidoparia Heckel, 1847 -- valid
  Aspidoparia jaya (Hamilton, 1822) -- valid
  Aspidoparia morar (Hamilton, 1822) -- valid
  Aspidoparia sardina Heckel, 1847 -- invalid
  Aspidophoroides Lacepède, 1801 -- valid
  Aspidophoroides bartoni Gilbert, 1896 -- valid -- Aleutian alligatorfish
  Aspidophoroides monopterygius (Bloch, 1786) -- valid -- alligatorfish, poisson-alligator atlantique
  Aspidophoroides olriki Lütken, 1877 -- invalid -- Arctic alligatorfish, poisson-alligator arctique
  Aspidoras Ihering, 1907 -- valid
  Aspitrigla Fowler, 1925 -- invalid
  Aspitrigla cuculus (Linnaeus, 1758) -- invalid -- cuckoo gurnard, red gurnard
  Aspiurochilus Fowler, 1956 -- invalid
  Aspius Agassiz, 1832 -- invalid
  Aspius alburnus Bonaparte, 1841 -- invalid
  Aspius aspius (Linnaeus, 1758) -- invalid
  Aspius vorax Heckel, 1843 -- invalid
  Aspredinichthys Bleeker, 1858 -- valid
  Aspredinichthys filamentosus (Valenciennes in Cuvier and Valenciennes, 1840) -- valid
  Aspredinichthys tibicen (Valenciennes in Cuvier and Valenciennes, 1840) -- valid
  Aspredo Scopoli, 1777 -- valid
  Aspredo aspredo (Linnaeus, 1758) -- valid
  Aspro Cuvier in Cuvier and Valenciennes, 1828 -- invalid
  Asprocottus Berg, 1906 -- valid
  Asquamiceps Zugmayer, 1911 -- valid
  Asquamiceps velaris Zugmayer, 1911 -- valid
  Assessor Whitley, 1935 -- valid
  Assiculus Richardson, 1846 -- valid
  Astatotilapia Pellegrin, 1904 -- valid
  Astatotilapia burtoni (Günther, 1894) -- valid -- Burton's mouth-brooder
  Asterorhombus Tanaka, 1915 -- valid
  Asterorhombus intermedius (Bleeker, 1865) -- valid -- intermediate flounder
  Asterotheca Gilbert, 1915 -- invalid
  Asterotheca alascana (Gilbert, 1896) -- invalid -- gray starsnout
  Asterotheca infraspinata (Gilbert, 1904) -- invalid -- spinycheek starsnout
  Asterotheca pentacanthus (Gilbert, 1890) -- invalid -- bigeye poacher
  Asterropteryx Rüppell, 1830 -- valid
  Asterropteryx semipunctatus Rüppell, 1830 -- invalid -- starry fin, starry fin
  Astrapogon Fowler, 1907 -- valid
  Astrapogon alutus (Jordan and Gilbert, 1882) -- valid -- bronze cardinalfish, cardenal bronceado
  Astrapogon puncticulatus (Poey, 1867) -- valid -- blackfin cardinalfish, cardenal punteado
  Astrapogon stellatus (Cope, 1867) -- valid -- conchfish, cardenal del cobo
  Astroblepus Humboldt, 1805 -- valid
  Astrocottus Bolin, 1936 -- valid
  Astrolytes Jordan and Starks, 1895 -- invalid
  Astronesthes Richardson, 1845 -- valid
  Astronesthes boulengeri Gilchrist, 1902 -- valid
  Astronesthes lucifer Gilbert, 1905 -- valid -- snaggletooth
  Astronesthes niger Richardson, 1845 -- valid
  Astronesthes richardsoni (Poey, 1852) -- valid -- snaggletooth, tachonado
  Astronesthes similis Parr, 1927 -- invalid
  Astronesthes similus Parr, 1927 -- valid
  Astronotus Swainson, 1839 -- valid -- oscars
  Astronotus ocellatus (Agassiz in Spix and Agassiz, 1831) -- valid -- oscar
  Astroscopus Brevoort in Gill, 1860 -- valid -- electric stargazers
  Astroscopus guttatus Abbott, 1860 -- valid -- northern stargazer
  Astroscopus y-graecum (Cuvier in Cuvier and Valenciennes, 1829) -- valid -- southern stargazer, miracielo del sureste
  Astyanax Baird and Girard, 1854 -- valid -- astynaxes
  Astyanax abramis (Jenyns, 1842) -- valid
  Astyanax aurocaudatus Eigenmann, 1913 -- invalid
  Astyanax bimaculatus (Linnaeus, 1758) -- valid -- twospot astyanax, twospot astyanax
  Astyanax fasciatus (Cuvier, 1819) -- valid -- banded astyanax, banded astyanax, Mexican tetra
  Astyanax jordani (Hubbs and Innes, 1936) -- valid
  Astyanax mexicanus (De Filippi, 1853) -- valid -- sardinita mexicana, Mexican tetra
  Asymbolus Whitley, 1939 -- valid -- Australian spotted cat sharks
  Asymbolus analis (Ogilby, 1885) -- valid -- Australian spotted catshark
  Asymbolus vincenti (Zietz, 1908) -- valid -- gulf catshark
  Ataeniobius Hubbs and Turner, 1939 -- valid
  Ataxolepis Myers and Freihofer, 1966 -- valid
  Ataxolepis apus Myers and Freihofer, 1966 -- valid
  Ateleopus Temminck and Schlegel, 1846 -- valid
  Atelomycterus Garman, 1913 -- valid -- coral cat sharks
  Atelomycterus macleayi Whitley, 1939 -- valid -- Australian marbled catshark
  Atelomycterus marmoratus (Anonymous [Bennett], 1830) -- valid -- coral catshark
  Atheresthes Jordan & Gilbert, 1880 -- valid
  Atheresthes evermanni Jordan & Starks, 1904 -- valid -- Kamchatka flounder, Kamchatka Flounder
  Atheresthes stomias (Jordan & Gilbert, 1880) -- valid -- arrowtooth flounder, Arrowtooth Flounder, plie à grande bouche
  Atherina Linnaeus, 1758 -- valid -- friars
  Atherina bleekeri Günther, 1861 -- invalid -- flathead silverside
  Atherina boyeri Risso, 1810 -- valid
  Atherina breviceps Valenciennes in Cuvier and Valenciennes, 1835 -- valid -- cape silverside
  Atherina duodecimalis Valenciennes in Cuvier and Valenciennes, 1835 -- invalid -- smallmouth hardyhead
  Atherina forskalii Rüppell, 1838 -- invalid -- hardyhead
  Atherina hepsetus Linnaeus, 1758 -- valid -- sand smelt
  Atherina laticeps Poey, 1860 -- invalid -- cabezote
  Atherina microstoma Günther, 1861 -- invalid -- smallmouthed hardyhead
  Atherina mochon Cuvier, 1829 -- invalid -- caspian sand smelt
  Atherina presbyter Cuvier, 1829 -- valid -- common sand smelt
  Atherina signata Günther, 1867 -- invalid
  Atherina stipes Müller and Troschel in Schomburgk, 1848 -- invalid
  Atherinason Whitley, 1934 -- valid
  Atherinella Steindachner, 1875 -- valid
  Atherinidae -- valid -- silversides, athérines, Old World silversides, tinícalos
  Atherinomorus Fowler, 1903 -- valid
  Atherinomorus duodecimalis (Valenciennes in Cuvier and Valenciennes, 1835) -- valid
  Atherinomorus endrachtensis (Quoy and Gaimard, 1825) -- valid
  Atherinomorus insularum (Jordan and Evermann, 1903) -- valid
  Atherinomorus lacunosus (Forster in Bloch and Schneider, 1801) -- valid
  Atherinomorus ogilbyi (Whitley, 1930) -- invalid
  Atherinomorus stipes (Müller and Troschel in Schomburgk, 1848) -- valid -- hardhead silverside, tinícalo cabezón, cabezote
  Atherinops Steindachner, 1876 -- valid
  Atherinops affinis (Ayres, 1860) -- valid -- topsmelt, pejerrey pescadillo
  Atherinopsis Girard, 1854 -- valid
  Atherinopsis californiensis Girard, 1854 -- valid -- jacksmelt, pejerrey mocho
  Atherinosoma Castelnau, 1872 -- valid
  Atherinosoma microstoma (Günther, 1861) -- valid
  Atherion Jordan and Starks, 1901 -- valid
  Atherion africanus Smith, 1965 -- valid -- pricklenose silverside
  Atherion elymus Jordan and Starks, 1901 -- valid
  Atlantoraja Menni, 1972 -- valid
  Atomaster Eigenmann and Myers, 1927 -- invalid
  Atopochilus Sauvage, 1879 -- valid
  Atopochilus christyi Boulenger, 1920 -- valid
  Atopocottus Bolin, 1936 -- valid
  Atractodenchelys Robins and Robins, 1970 -- valid
  Atractodenchelys phrix Robins and Robins, 1970 -- valid -- arrowtooth eel
  Atractophorus Gilchrist, 1922 -- invalid
  Atractophorus armatus Gilchrist, 1922 -- invalid
  Atractoscion Gill, 1862 -- valid
  Atractoscion aequidens (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- teraglin, teraglin
  Atractoscion nobilis (Ayres, 1860) -- valid -- white seabass, corvina cabaicucho
  Atractosteus Rafinesque, 1820 -- valid -- broadhead gars
  Atractosteus spatula (Lacepède, 1803) -- valid -- alligator gar, catán
  Atractosteus tristoechus (Bloch and Schneider, 1801) -- valid -- Cuban gar, manjuari
  Atractosteus tropicus Gill, 1863 -- valid -- pejelagarto, tropical gar
  Atrobucca Chu, Lo and Wu, 1963 -- valid
  Auchenipterus Valenciennes in Cuvier and Valenciennes, 1840 -- valid
  Auchenoceros Günther, 1889 -- valid
  Auchenoceros punctatus (Hutton, 1873) -- valid -- ahuru
  Auchenoglanis Günther, 1865 -- valid
  Auchenoglanis ahli Holly, 1930 -- invalid
  Auchenoglanis macrostoma Pellegrin, 1909 -- invalid
  Auchenopterus fajardo Evermann and Marsh, 1899 -- invalid
  Aulichthys Brevoort in Gill, 1862 -- valid
  Aulohalaelurus Fowler, 1934 -- valid -- blackspotted cat sharks
  Aulohalaelurus labiosus (Waite, 1905) -- valid -- blackspotted catshark
  Aulonocara Regan, 1922 -- valid
  Aulonocara jacobfreibergi (Johnson, 1974) -- valid
  Aulonocara nyassae Regan, 1922 -- valid -- African peacock
  Aulorhynchus Gill, 1861 -- valid
  Aulorhynchus flavidus Gill, 1861 -- valid -- tube-snout, trompudo sargacero, tubesnout
  Aulostoma longipes Vaillant, 1888 -- invalid
  Aulostomus Lacepède, 1803 -- valid -- trumpetfishes
  Aulostomus chinensis (Linnaeus, 1766) -- valid -- painted flute mouth, painted flute mouth, Chinese trumpetfish, trompeta china
  Aulostomus maculatus Valenciennes, 1837 -- valid -- trumpetfish, trompa, Atlantic trumpetfish, trompeta del Atlántico
  Aulostomus valentini (Bleeker, 1853) -- invalid -- spinyback trumpetfish, spinyback trumpetfish
  Austrobatrachus Smith, 1949 -- valid
  Austrobatrachus foedus (Smith, 1947) -- valid -- puzzled toadfish
  Austrofundulus Myers, 1932 -- valid
  Austrofundulus dolichopterus Weitzman and Wourms, 1967 -- invalid
  Austroglanis Skelton, Risch and de Vos, 1984 -- valid
  Austroglanis barnardi (Skelton, 1981) -- valid
  Austroglossus Regan, 1920 -- valid
  Austroglossus microlepis (Bleeker, 1863) -- valid -- West Coast sole
  Austroglossus pectoralis (Kaup, 1858) -- valid -- East Coast sole
  Austrolabrus Steindachner, 1884 -- valid
  Austrolethops Whitley, 1935 -- valid
  Austrolethops wardi Whitley, 1935 -- valid -- nudey, nudey
  Autanadoras Fernández-Yépez, 1950 -- invalid
  Avocettina Jordan and Davis, 1891 -- valid
  Avocettina acuticeps (Regan, 1916) -- valid
  Avocettina bowersii (Garman, 1899) -- valid
  Avocettina infans (Günther, 1878) -- valid -- snipe eel
  Avocettina paucipora Nielsen and Smith, 1978 -- valid
  Avocettinops Roule and Bertin, 1924 -- invalid
  Avocettinops schmidti Roule and Bertin, 1924 -- invalid
  Awaous guamensis (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- Pacific river goby
  Awaous melanocephalus (Bleeker, 1849) -- valid
  Axelrodia Géry, 1965 -- valid
  Axelrodia riesei Géry, 1966 -- valid -- ruby tetra, ruby tetra
  Axinurus thynnoides Cuvier, 1829 -- invalid -- oneknife unicorn
  Axyrias Starks, 1896 -- invalid
  Aygula Rafinesque, 1815 -- invalid
  Azygopterus Andriashev and Makushok, 1955 -- valid
  Azygopterus corallinus Andriashev and Makushok, 1955 -- valid
  Azygopus Norman, 1926 -- valid
  Azygopus pinnifasciatus Norman, 1926 -- valid
  Badis Bleeker, 1854 -- valid
  Bagarius Bleeker, 1854 -- valid
  Bagarius suchus Roberts, 1983 -- valid
  Bagre Cloquet, 1816 -- valid -- gafftopsail catfishes
  Bagre bagre (Linnaeus, 1766) -- valid
  Bagre marinus (Mitchill, 1815) -- valid -- gafftopsail catfish, bagre, bagre bandera
  Bagre panamensis (Gill, 1863) -- valid -- chihuil, bagre chihuil
  Bagrichthys Bleeker, 1857 -- valid
  Bagrichthys micranodus Roberts, 1989 -- valid
  Bagroides Bleeker, 1851 -- valid
  Bagroides melapterus Bleeker, 1851 -- valid
  Bagrus Bosc, 1816 -- valid
  Bagrus couma Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Bagrus micracanthus Bleeker, 1846 -- invalid
  Bagrus orientalis Boulenger, 1902 -- valid
  Bagrus passany Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Bagrus proops Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Bairdiella Gill, 1861 -- valid -- mademoiselle, striped croakers
  Bairdiella armata Gill, 1863 -- valid -- armed croaker, ronco armado
  Bairdiella batabana (Poey, 1860) -- invalid -- blue croaker, ronco azul
  Bairdiella chrysoura (Lacepède, 1802) -- valid -- silver perch, ronco amarillo
  Bairdiella icistia (Jordan and Gilbert, 1882) -- valid -- bairdiella, corbineta, ronco roncacho
  Bairdiella ronchus (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- ground drummer, peacock bass, ronco, corvina espinosa, ronco rayado, ground croaker
  Bairdiella sanctaeluciae (Jordan, 1890) -- invalid -- striped croaker, corvina Santa Lucía, ronco caribeño
  Bajacalifornia Townsend and Nichols, 1925 -- valid
  Bajacalifornia burragei Townsend and Nichols, 1925 -- valid
  Bajacalifornia drakei (Beebe, 1929) -- invalid
  Bajacalifornia megalops (Lütken, 1898) -- valid -- bigeye smoothhead
  Balantiocheilos melanopterus (Bleeker, 1851) -- valid -- silver shark
  Balistapus Tilesius, 1820 -- valid
  Balistapus undulatus (Park, 1797) -- valid -- redlined triggerfish
  Balistes Linnaeus, 1758 -- valid -- triggerfishes
  Balistes aculeatus Linnaeus, 1758 -- invalid
  Balistes auromarginatus Bennett, 1832 -- invalid
  Balistes capistratus Shaw, 1804 -- invalid
  Balistes capriscus Gmelin, 1789 -- valid -- gray triggerfish, cochino gris, pejepuerco blanco, baliste capri, Gray Triggerfish
  Balistes carolinensis Gmelin, 1789 -- invalid -- bridled triggerfish
  Balistes conspicillum Bloch & Schneider, 1801 -- invalid -- bigspotted triggerfish
  Balistes fuscus Bloch & Schneider, 1801 -- invalid
  Balistes polylepis Steindachner, 1876 -- valid -- finescale triggerfish, cochi, Finescale Triggerfish
  Balistes punctatus Gmelin, 1789 -- valid
  Balistes rectangulus Bloch & Schneider, 1801 -- invalid
  Balistes undulatus Park, 1797 -- invalid
  Balistes vetula Linnaeus, 1758 -- valid -- queen triggerfish, cochino, baliste royal, Queen Triggerfish
  Balistes viridescens Bloch & Schneider, 1801 -- invalid -- bluefin filefish
  Balistoides Fraser-Brunner, 1935 -- valid
  Balistoides conspicillum (Bloch & Schneider, 1801) -- valid -- bigspotted triggerfish
  Balistoides viridescens (Bloch & Schneider, 1801) -- valid -- bluefin filefish
  Balitora Gray, 1830 -- valid
  Balitora annamitica Kottelat, 1988 -- valid
  Balitora shimogensis Sukas and Kalawar in Kalawar and Kulkarni, 1956 -- invalid
  Banjos Bleeker, 1876 -- valid
  Barathrites Zugmayer, 1911 -- valid
  Barathrites abyssorum Roule, 1916 -- invalid
  Barathrites iris Zugmayer, 1911 -- valid
  Barathrites parri Nybelin, 1957 -- valid
  Barathrodemus Goode and Bean, 1883 -- valid
  Barathrodemus manatinus Goode and Bean, 1883 -- valid
  Barathrodemus microps Parr, 1933 -- invalid
  Barathrodemus nasutus Smith and Radcliffe in Radcliffe, 1913 -- valid
  Barathronus Goode and Bean, 1886 -- valid
  Barathronus affinis Brauer, 1906 -- valid
  Barathronus bicolor Goode and Bean, 1886 -- valid
  Barathronus bruuni Nielsen, 1969 -- valid
  Barathronus diaphanus Brauer, 1906 -- valid
  Barathronus maculatus Shcherbachev, 1976 -- valid
  Barathronus pacificus Nielsen and Eagle, 1974 -- valid
  Barbodes Bleeker, 1859 -- valid
  Barbodes altus (Günther, 1868) -- invalid
  Barbodes amara Herre, 1924 -- invalid
  Barbodes balleroides (Valenciennes in Cuvier and Valenciennes, 1842) -- valid
  Barbodes baoulan Herre, 1926 -- valid
  Barbodes benasi (Pellegrin and Chevey, 1936) -- invalid
  Barbodes chonglingchungi (Tchang, 1938) -- invalid
  Barbodes clemensi Herre, 1924 -- valid
  Barbodes cogginii (Chaudhuri, 1911) -- invalid
  Barbodes collingwoodii (Günther, 1868) -- valid
  Barbodes disa Herre, 1932 -- invalid
  Barbodes elongatus (Oshima, 1920) -- valid
  Barbodes flavifuscus Herre, 1924 -- invalid
  Barbodes foxi (Fowler, 1937) -- invalid
  Barbodes fuxianhuensis (Wang, Zhuang and Gao, 1982) -- invalid
  Barbodes gonionotus (Bleeker, 1850) -- invalid
  Barbodes hemictenus Jordan and Richardson, 1908 -- invalid
  Barbodes huangchuchieni (Tchang, 1962) -- invalid
  Barbodes jolamarki (Smith, 1934) -- invalid
  Barbodes katolo Herre, 1924 -- invalid
  Barbodes lanaoensis Herre, 1924 -- invalid
  Barbodes laticeps Lin and Zhang, 1986 -- invalid
  Barbodes lindog Herre, 1924 -- invalid
  Barbodes manalak Herre, 1924 -- invalid
  Barbodes margarianus (Anderson, 1879) -- invalid
  Barbodes palata Herre, 1924 -- valid
  Barbodes platysoma (Bleeker, 1855) -- valid
  Barbodes rhomboides Wu and Lin in Wu, Lin, Chen, Chen and He, 1977 -- invalid
  Barbodes sirang Herre, 1932 -- invalid
  Barbodes strigatus (Boulenger, 1894) -- valid
  Barbodes sunieri (Weber and de Beaufort, 1916) -- valid
  Barbodes tras Herre, 1926 -- valid
  Barbodes tumba Herre, 1924 -- invalid
  Barbourisia Parr, 1945 -- valid
  Barbourisia rufa Parr, 1945 -- valid -- red velvet whalefish
  Barbulifer Eigenmann and Eigenmann, 1888 -- valid
  Barbulifer antennatus Böhlke and Robins, 1968 -- valid -- barbulifer, barbulifer, gobio antenado, whiskered goby
  Barbulifer ceuthoecus (Jordan and Gilbert, 1884) -- valid -- bearded goby
  Barbus Cuvier and Cloquet, 1816 -- valid
  Barbus aeneus (Burchell, 1822) -- invalid
  Barbus anoplus Weber, 1897 -- valid
  Barbus apogon Valenciennes in Cuvier and Valenciennes, 1842 -- invalid
  Barbus barbus (Linnaeus, 1758) -- valid
  Barbus callipterus Boulenger, 1907 -- valid -- clipper barb
  Barbus cumingii Günther, 1868 -- invalid -- Cuming's barb
  Barbus everetti Boulenger, 1894 -- invalid -- clown barb
  Barbus gurneyi Günther, 1868 -- valid
  Barbus holotaenia Boulenger, 1904 -- valid
  Barbus holubi Steindachner, 1894 -- invalid
  Barbus hulstaerti Poll, 1945 -- valid
  Barbus kahajani Hoedeman, 1956 -- invalid
  Barbus kalopterus Bleeker, 1851 -- invalid
  Barbus lateristriga Valenciennes in Cuvier and Valenciennes, 1842 -- invalid -- spanner barb
  Barbus natalensis Castelnau, 1861 -- invalid
  Barbus nigrofasciatus Günther, 1868 -- invalid -- black-ruby barb
  Barbus orphoides Valenciennes in Cuvier and Valenciennes, 1842 -- invalid
  Barbus pentazona Boulenger, 1894 -- invalid -- five-banded barb
  Barbus pentazona hexazona Weber and de Beaufort, 1912 -- invalid
  Barbus pentazona pentazona Boulenger, 1894 -- invalid
  Barbus rhomboocellatus (Koumans, 1940) -- invalid
  Barbus semifasciolatus Günther, 1868 -- invalid -- green barb
  Barbus tetrazona Bleeker, 1857 -- invalid -- tiger barb
  Barbus viviparus Weber, 1897 -- valid
  Barchatus Smith, 1952 -- invalid
  Barilius Hamilton, 1822 -- valid
  Barilius bendelisis (Hamilton, 1807) -- valid
  Barilius christyi Boulenger, 1920 -- invalid
  Barilius nigrofasciatus Day, 1870 -- invalid
  Bascanichthys bascanium (Jordan, 1884) -- valid -- sooty eel, tieso tiznado
  Bascanichthys scuticaris (Goode and Bean, 1880) -- valid -- whip eel, safío pardo
  Bascanichthys teres (Goode and Bean, 1882) -- invalid -- sooty eel
  Bassobythites Brauer, 1906 -- invalid
  Bassobythites brunswigi Brauer, 1906 -- invalid
  Bassogigas Goode and Bean, 1896 -- valid
  Bassogigas gilli Goode and Bean, 1896 -- invalid
  Bassozetus Gill, 1883 -- valid
  Bassozetus elongatus Smith and Radcliffe in Radcliffe, 1913 -- valid
  Bassozetus glutinosus (Alcock, 1890) -- valid
  Bassozetus nasus Garman, 1899 -- valid
  Bassozetus normalis Gill, 1883 -- valid
  Bassozetus oncerocephalus (Vaillant, 1888) -- valid
  Bassozetus robustus Smith and Radcliffe in Radcliffe, 1913 -- valid
  Bassozetus taenia (Günther, 1887) -- valid
  Bassozetus zenkevitchi Rass, 1955 -- valid
  Bathophilus Giglioli, 1882 -- valid
  Bathophilus ater (Brauer, 1902) -- valid
  Bathophilus flemingi Aron and McCrery, 1958 -- valid -- highfin dragonfish
  Bathophilus pawneei Parr, 1927 -- valid
  Bathyagonus Gilbert, 1890 -- valid
  Bathyagonus alascanus (Gilbert, 1896) -- valid -- gray starsnout
  Bathyagonus infraspinatus (Gilbert, 1904) -- valid -- spinycheek starsnout
  Bathyagonus nigripinnis Gilbert, 1890 -- valid -- blackfin poacher
  Bathyagonus pentacanthus (Gilbert, 1890) -- valid -- bigeye poacher
  Bathyanthias Günther, 1880 -- valid
  Bathyanthias mexicanus (Schultz, 1958) -- valid -- yellowtail bass, mero cola amarilla
  Bathyaploactis Whitley, 1933 -- valid
  Bathychaunax Caruso, 1989 -- valid
  Bathyclupea Alcock, 1891 -- valid
  Bathyclupea argentea Goode and Bean, 1896 -- valid
  Bathyclupea schroederi Dick, 1962 -- valid
  Bathycongrus Ogilby, 1898 -- valid
  Bathycongrus aequoreus (Gilbert and Cramer, 1897) -- valid
  Bathycongrus bullisi (Smith and Kanazawa, 1977) -- valid -- bullish conger, congrio disparatado
  Bathycongrus polyporus (Smith and Kanazawa, 1977) -- valid
  Bathycongrus varidens (Garman, 1899) -- valid -- largehead conger, congrio cabezón
  Bathycongrus vicinalis (Garman, 1899) -- valid -- neighbor conger, congrio vecino
  Bathydraco Günther, 1878 -- valid
  Bathygadus Günther, 1878 -- valid
  Bathygadus antrodes (Jordan and Starks, 1904) -- valid
  Bathygadus arcuatus Goode and Bean, 1886 -- invalid
  Bathygadus bowersi (Gilbert, 1905) -- valid
  Bathygadus cottoides Günther, 1878 -- valid
  Bathygadus entomelas Gilbert and Hubbs, 1920 -- valid
  Bathygadus favosus Goode and Bean, 1886 -- valid
  Bathygobius Bleeker, 1878 -- valid -- mapos, frillfin gobies
  Bathygobius cocosensis (Bleeker, 1854) -- valid -- Cocos frillfin goby
  Bathygobius cotticeps (Steindachner, 1879) -- valid
  Bathygobius curacao (Metzelaar, 1919) -- valid -- notchtongue goby, gobio jaspeado
  Bathygobius fuscus (Rüppell, 1830) -- valid -- brown goby, dusky frillfin goby
  Bathygobius mystacium Ginsburg, 1947 -- valid -- island frillfin, gobio bandeado
  Bathygobius petrophilus (Bleeker, 1853) -- valid
  Bathygobius soporator (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- frillfin goby, gobio mapo, mapo aguado
  Bathylaco Goode and Bean, 1896 -- valid
  Bathylaco nigricans Goode and Bean, 1896 -- valid -- black warrior, bonythroat
  Bathylagus Günther, 1878 -- valid
  Bathylagus antarcticus Günther, 1878 -- valid
  Bathylagus bericoides (Borodin, 1929) -- invalid
  Bathylagus borealis Gilbert, 1896 -- invalid
  Bathylagus euryops Goode and Bean, 1896 -- valid -- goiter blacksmelt
  Bathylagus gracilis Lönnberg, 1905 -- valid
  Bathylagus longirostris Maul, 1948 -- invalid
  Bathylagus microcephalus Norman, 1930 -- invalid
  Bathylagus milleri Jordan and Gilbert in Jordan and Evermann, 1898 -- invalid -- stout blacksmelt
  Bathylagus nigrigenys Parr, 1931 -- invalid
  Bathylagus ochotensis Schmidt, 1938 -- invalid -- Okhotsk blacksmelt
  Bathylagus pacificus Gilbert, 1890 -- valid -- Pacific blacksmelt, slender blacksmelt
  Bathylagus schmidti (Rass, 1955) -- invalid -- northern smoothtongue
  Bathylagus wesethi Bolin, 1938 -- invalid
  Bathylutichthys Balushkin and Voskoboinikova, 1990 -- valid
  Bathylychnops Cohen, 1958 -- valid
  Bathylychnops exilis Cohen, 1958 -- valid
  Bathymaster Cope, 1873 -- valid
  Bathymaster caeruleofasciatus Gilbert and Burke, 1912 -- valid -- Alaskan ronquil
  Bathymaster leurolepis McPhail, 1965 -- valid -- smallmouth ronquil
  Bathymaster signatus Cope, 1873 -- valid -- searcher
  Bathymyrus Alcock, 1889 -- valid
  Bathymyrus echinorhynchus Alcock, 1889 -- valid
  Bathymyrus simus Smith, 1965 -- valid
  Bathymyrus smithi Castle, 1968 -- valid
  Bathyonus Goode and Bean, 1885 -- valid
  Bathyonus caudalis (Garman, 1899) -- valid
  Bathyonus laticeps (Günther, 1878) -- valid
  Bathyonus pectoralis Goode and Bean, 1885 -- valid
  Bathyprion Marshall, 1966 -- valid
  Bathyprion danae Marshall, 1966 -- valid -- fangtooth smoothhead
  Bathyraja abyssicola (Gilbert, 1896) -- valid -- deepsea skate
  Bathyraja griseocauda (Norman, 1937) -- valid
  Bathyraja rosispinis (Gill and Townsend, 1897) -- invalid
  Bathyraja spinosissima (Beebe and Tee-van, 1941) -- valid
  Bathysolea Roule, 1916 -- valid
  Bathysolea profundicola (Vaillant, 1888) -- valid
  Bathytroctes Günther, 1878 -- valid
  Bathytroctes aequatoris Goode and Bean, 1896 -- invalid
  Bathyuroconger Fowler, 1934 -- valid
  Bathyuroconger vicinus (Vaillant, 1888) -- valid -- large-toothed conger
  Batrachocephalus Bleeker, 1846 -- valid
  Batrachocephalus mino (Hamilton, 1822) -- valid -- beardless sea catfish, mâchoiron imberbe, bagre lamiño
  Batrachoides Lacepède, 1800 -- valid
  Batrachoides pacifici (Günther, 1861) -- valid
  Batrachoides surinamensis (Bloch and Schneider, 1801) -- valid -- Pacum toadfish, sapo
  Batrachomoeus Ogilby, 1908 -- valid
  Batrachomoeus dubius (White, 1790) -- valid -- frogfish, blotchtail toadfish
  Batrichthys Smith, 1934 -- valid
  Batrichthys albofasciatus Smith, 1934 -- valid -- whiteribbed toadfish
  Batrichthys apiatus (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- snakehead toadfish
  Batrichthys felinus Smith, 1952 -- valid -- pleated toadfish
  Beaufortia Hora, 1932 -- valid
  Beaufortia kweichowensis (Fang, 1931) -- valid
  Beaufortia leveretti (Nichols and Pope, 1927) -- valid
  Beaufortia liui Chang, 1944 -- valid
  Beaufortia szechuanensis (Fang, 1930) -- valid
  Bedotia Regan, 1903 -- valid
  Bedotia geayi Pellegrin, 1907 -- valid -- madagascar rainbow fish
  Beliops Hardy, 1985 -- valid
  Bellator Jordan and Evermann, 1896 -- valid
  Bellator brachychir (Regan, 1914) -- valid -- shortfin searobin, rubio aleticorta
  Bellator egretta (Goode and Bean, 1896) -- valid -- streamer searobin, rubio gallardete, espátula bandera
  Bellator militaris (Goode and Bean, 1896) -- valid -- horned searobin, rubio soldadito
  Bellator ribeiroi Miller, 1965 -- valid
  Bellator xenisma (Jordan and Bollman, 1890) -- valid -- splitnose searobin, vaca doble hocico
  Bellocia Parr, 1951 -- invalid
  Bellocia vaillanti Parr, 1951 -- invalid
  Bellottia Giglioli, 1883 -- valid
  Bellottia apoda Giglioli, 1883 -- valid
  Bellottia armiger (Smith and Radcliffe in Radcliffe, 1913) -- valid
  Belodontichthys Bleeker, 1857 -- valid
  Belodontichthys dinema (Bleeker, 1851) -- valid
  Belone Cuvier, 1816 -- valid
  Belone belone (Linnaeus, 1761) -- valid -- garfish, garfish
  Belone cancila (Hamilton, 1822) -- invalid
  Belone platyura Bennett, 1832 -- invalid
  Belone svetovidovi Collette and Parin, 1970 -- valid
  Belonepterygion McCulloch, 1915 -- valid
  Belonesox Kner, 1860 -- valid -- pike killifishes
  Belonesox belizanus Kner, 1860 -- valid -- pike killifish, piketop minnow, picudito
  Belonichthys Peters, 1868 -- invalid
  Belonichthys fluviatilis (Peters, 1852) -- invalid -- freshwater pipefish, freshwater pipefish
  Belonion Collette, 1966 -- valid
  Belonion apodion Collette, 1966 -- valid
  Belonoglanis Boulenger, 1902 -- valid
  Belonoglanis tenuis Boulenger, 1902 -- valid
  Belonophago Giltay, 1929 -- valid
  Belonophago hutsebouti Giltay, 1929 -- valid
  Belontia Myers, 1923 -- valid
  Belontia hasselti (Cuvier in Cuvier and Valenciennes, 1831) -- valid
  Belontia signata (Günther, 1861) -- valid -- combtail, combtail paradisefish
  Bembradium Gilbert, 1905 -- valid
  Bembras Cuvier in Cuvier and Valenciennes, 1829 -- valid
  Bembrops Steindachner, 1876 -- valid
  Bembrops anatirostris Ginsburg, 1955 -- valid -- duckbill flathead, longnose duckbill, pico de pato
  Bembrops caudimacula Steindachner, 1876 -- valid -- opal fish
  Bembrops filifera Gilbert, 1905 -- valid
  Bembrops gobioides (Goode, 1880) -- valid -- goby flathead, goby duckbill, pico de pala
  Bembrops macromma Ginsburg, 1955 -- valid
  Bembrops magnisquamis Ginsburg, 1955 -- valid
  Benthenchelys Fowler, 1934 -- valid
  Benthenchelys cartieri Fowler, 1934 -- valid
  Benthobatis marcida Bean and Weed, 1909 -- valid -- blind torpedo, deep-sea blind ray, pale blind ray, torpedo, deepesea electric ray
  Benthocometes Goode and Bean, 1896 -- valid
  Benthocometes robustus (Goode and Bean, 1886) -- valid -- brótula robusta
  Benthosema Goode and Bean, 1896 -- valid
  Benthosema glaciale (Reinhardt, 1837) -- valid -- glacier lanterfish, glacier lanternfish, lanterne glaciaire
  Benthosema suborbitale (Gilbert, 1913) -- valid -- pez linterna suborbital, smallfin lanternfish
  Bergia Steindachner, 1891 -- invalid
  Bermudichthys Nichols, 1920 -- invalid
  Bero Jordan and Starks, 1904 -- valid
  Bertella Pietsch, 1973 -- valid
  Betta Bleeker, 1850 -- valid -- fighting fishes, bettas
  Betta bellica Sauvage, 1884 -- valid -- slim fighting fish
  Betta brederi Myers, 1935 -- invalid -- Sumatra fighting fish, Java betta
  Betta coccina Vierke, 1979 -- valid
  Betta fasciata Regan, 1910 -- invalid -- striped fighting fish
  Betta imbellis Ladiges, 1975 -- valid
  Betta pugnax (Cantor, 1849) -- valid -- penang mouth-brooding fighting fish
  Betta smaragdina Ladiges, 1972 -- valid
  Betta splendens Regan, 1910 -- valid -- siamese fighting fish
  Betta taeniata Regan, 1910 -- valid -- borneo fighting fish
  Betta tussyae Schaller, 1985 -- valid
  Bhavania Hora, 1920 -- valid
  Bhavania australis (Jerdon, 1849) -- valid
  Bidenichthys Barnard, 1934 -- valid
  Bidenichthys capensis Barnard, 1934 -- valid -- freetail brotula
  Bidyanus Whitley, 1943 -- valid
  Bidyanus bidyanus (Mitchell, 1838) -- valid
  Bidyanus welchi (McCulloch and Waite, 1917) -- valid
  Binghamichthys Whitley, 1941 -- invalid
  Binghamichthys aphos Bussing, 1965 -- invalid
  Biotodoma Eigenmann and Kennedy, 1903 -- valid
  Biotodoma cupido (Heckel, 1840) -- valid
  Bivibranchia Eigenmann, 1912 -- valid
  Bivibranchia bimaculata Vari, 1985 -- valid
  Blachea Karrer and Smith, 1980 -- valid
  Bleekeria Günther, 1862 -- valid
  Bleekeria gilli Bean, 1895 -- invalid
  Bleekeria renniei Smith, 1957 -- invalid -- falsetail sandlance
  Blennicottus Gill, 1861 -- invalid
  Blennioclinus Gill, 1860 -- valid
  Blennioclinus brachycephalus (Valenciennes in Cuvier and Valenciennes, 1836) -- valid -- lace klipfish, lace klipfish
  Blennioclinus stella Smith, 1946 -- valid -- silverbubble klipfish, silverbubble klipfish
  Blennodesmus Günther, 1872 -- valid
  Blennodesmus scapularis Günther, 1872 -- valid -- eel blenny, eel blenny
  Blepsias Cuvier, 1829 -- valid
  Blepsias bilobus Cuvier in Cuvier and Valenciennes, 1829 -- valid -- crested sculpin
  Blepsias cirrhosus (Pallas, 1814) -- valid -- silverspotted sculpin
  Bleptonema Eigenmann, 1914 -- invalid
  Blicca Heckel, 1843 -- valid
  Blicca bjoerkna (Linnaeus, 1758) -- valid -- white bream, silver bream
  Blicca intermedia Fatio, 1882 -- invalid
  Bodianus Bloch, 1790 -- valid -- hogfishes
  Bodianus axillaris (Bennett, 1832) -- valid -- turncoat hogfish
  Bodianus bilunulatus (Lacépède, 1801) -- valid -- a'awa
  Bodianus diplotaenia (Gill, 1862) -- valid -- Pacific hogfish, Mexican hogfish, vieja mexicana
  Bodianus oxycephalus (Bleeker, 1862) -- valid -- blackspot pigfish
  Bodianus prognathus Lobel, 1981 -- valid
  Bodianus pulchellus (Poey, 1860) -- valid -- spotfin hogfish, pez perro de cola amarilla, vieja lomo negro
  Bodianus rufus (Linnaeus, 1758) -- valid -- Spanish hogfish, pez perro español, vieja española
  Bodianus russelli Gomon and Randall, 1975 -- invalid
  Bodianus sanguineus (Jordan and Evermann, 1903) -- valid
  Bodianus vulpinus (Richardson, 1850) -- valid
  Boehlkea Géry, 1966 -- valid
  Boehlkea fredcochui Géry, 1966 -- valid
  Boehlkenchelys Tighe, 1992 -- valid
  Boehlkenchelys longidentata Tighe, 1992 -- valid
  Bolbometopon Smith, 1956 -- valid
  Bolbometopon bicolor (Rüppell, 1829) -- invalid
  Bolbometopon muricatum (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- humphead parrotfish
  Bolinia Yabe, 1991 -- valid
  Bolinichthys Paxton, 1972 -- valid
  Bolinichthys indicus (Nafpaktitis and Nafpaktitis, 1969) -- valid
  Bolinichthys pyrsobolus (Alcock, 1890) -- valid
  Bolinichthys supralateralis (Parr, 1928) -- valid
  Bollmannia Jordan in Jordan and Bollman, 1890 -- valid
  Bollmannia boqueronensis Evermann and Marsh, 1899 -- valid -- white-eye goby
  Bollmannia communis Ginsburg, 1942 -- valid -- ragged goby, gobio andrajoso
  Bollmannia eigenmanni (Garman, 1896) -- valid -- shelf goby
  Bombonia Herre, 1927 -- invalid
  Bonapartia Goode and Bean, 1896 -- valid
  Bonapartia pedaliota Goode and Bean, 1896 -- valid
  Boops Cuvier, 1814 -- valid
  Boops boops (Linnaeus, 1758) -- valid
  Boraras Kottelat and Vidthayanon, 1993 -- valid
  Boraras maculatus (Duncker, 1904) -- valid -- dwarf rasbora
  Boreocottus Gill, 1859 -- invalid
  Boreogadus Günther, 1862 -- valid -- Arctic cods
  Boreogadus saida (Lepechin, 1774) -- valid -- Arctic cod, saïda franc, polar cod, saida franc
  Borodinula Whitley, 1931 -- invalid
  Borodinula gilli (Bean, 1890) -- invalid -- snipe eel
  Borodinula infans (Günther, 1878) -- invalid -- snipe eel
  Borophryne Regan, 1925 -- valid
  Borostomias Regan, 1908 -- valid
  Borostomias antarcticus (Lönnberg, 1905) -- valid -- straightline dragonfish
  Borostomias elucens (Brauer, 1906) -- valid
  Borostomias panamensis Regan and Trewavas, 1929 -- valid
  Bostockia Castelnau, 1873 -- valid
  Bothragonus Gill in Jordan and Gilbert, 1883 -- valid
  Bothragonus swanii (Steindachner, 1876) -- valid -- rockhead
  Bothrocara Bean, 1890 -- valid
  Bothrocara molle Bean, 1890 -- valid -- pighead eelpout, shortsnout eelpout, soft eelpout, pighead eelpout, shortsnout eelpout, soft eelpout
  Bothrocara pusillum (Bean, 1890) -- valid -- Alaska eelpout
  Bothus Rafinesque, 1810 -- valid
  Bothus bleekeri Steindachner, 1861 -- valid
  Bothus lunatus (Linnaeus, 1758) -- valid -- peacock flounder, lenguado lunado, Peacock Flounder
  Bothus mancus (Broussonet, 1782) -- valid -- tropical flounder, lenguado tropical, Tropical Flounder
  Bothus myriaster (Temminck & Schlegel, 1846) -- valid -- disc flounder, starry oval flounder
  Bothus ocellatus (Agassiz in Spix & Agassiz, 1831) -- valid -- eyed flounder, lenguado ocelado, chueco playón, Eyed Flounder, plie oculée
  Bothus ovalis (Regan, 1908) -- invalid -- oval flounder
  Bothus pantherinus (Rüppell, 1830) -- valid -- panther flounder, leopard flounder
  Bothus podas (Delaroche, 1809) -- valid -- wide-eyed flounder
  Bothus podas africanus Nielsen, 1961 -- invalid
  Bothus robinsi Topp & Hoff, 1972 -- valid -- twospot flounder, chueco dos manchas, Twospot Flounder
  Bothus thompsoni (Fowler, 1923) -- valid
  Botia Gray, 1831 -- valid
  Botia curta (Temminck and Schlegel, 1846) -- invalid -- ayumodoki, kissing loach
  Boulengerella Eigenmann, 1903 -- valid -- pike characids, pike characids
  Boulengerella maculata (Valenciennes in Cuvier and Valenciennes, 1850) -- valid
  Boulengerella maculatum (Valenciennes in Cuvier and Valenciennes, 1850) -- invalid
  Boulengeromyrus Taverne and Géry, 1968 -- valid
  Boulengeromyrus knoepffleri Taverne and Géry, 1968 -- valid
  Bovichthys Valenciennes in Cuvier and Valenciennes, 1832 -- invalid
  Bovichthys variegatus Richardson, 1846 -- invalid -- thornfish, thornfish
  Bovichtus Valenciennes in Cuvier and Valenciennes, 1832 -- valid
  Bovichtus variegatus Richardson, 1846 -- valid -- thornfish
  Brachaelurus waddi (Bloch and Schneider, 1801) -- valid -- blind shark
  Brachionichthys Bleeker, 1855 -- valid
  Brachioptilon Hamilton in Newman, 1849 -- invalid
  Brachioptilon hamiltoni Hamilton and Newman in Newman, 1849 -- invalid
  Brachyalestes Günther, 1864 -- invalid
  Brachyalestes acutidens (Peters, 1852) -- invalid
  Brachychalcinus Boulenger, 1892 -- valid
  Brachychalcinus orbicularis (Valenciennes in Cuvier and Valenciennes, 1850) -- valid
  Brachydanio Weber and de Beaufort, 1916 -- invalid -- slender danios
  Brachydanio albolineatus (Blyth, 1860) -- invalid -- pearl danio
  Brachydanio kerri (Smith, 1931) -- invalid
  Brachydanio nigrofasciatus (Day, 1870) -- invalid -- spotted danio
  Brachydanio rerio (Hamilton, 1822) -- invalid -- zebra danio
  Brachydeuterus Gill, 1862 -- valid -- burritos, burros
  Brachydeuterus auritus (Valenciennes in Cuvier and Valenciennes, 1832) -- valid -- burrito
  Brachygalaxias Eigenmann, 1928 -- valid
  Brachygobius Bleeker, 1874 -- valid -- bumblebee gobies, bumblebee gobies
  Brachygobius aggregatus Herre, 1940 -- valid -- goldenbanded goby, goldenbanded goby
  Brachygobius nunus (Hamilton, 1822) -- valid -- golden-banded goby, golden-banded goby
  Brachygobius xanthozona (Bleeker, 1849) -- invalid -- bumblebee fish, bumblebee fish
  Brachyhypopomus Mago-Leccia, 1994 -- valid
  Brachyhypopomus elegans (Steindachner, 1880) -- invalid
  Brachyistius Gill, 1862 -- valid
  Brachyistius frenatus Gill, 1862 -- valid -- kelp perch, mojarra sargacera
  Brachymystax Günther, 1866 -- valid
  Brachyopsis Gill, 1861 -- valid
  Brachyplatystoma Bleeker, 1862 -- valid
  Brachyplatystoma vaillante (Valenciennes in Cuvier and Valenciennes, 1840) -- invalid
  Brachyplatystoma vaillantii (Valenciennes in Cuvier and Valenciennes, 1840) -- valid
  Brachypleura Günther, 1862 -- valid
  Brachypleura novaezeelandiae Günther, 1862 -- valid
  Brachypleurops Fowler, 1934 -- invalid
  Brachypterois Fowler, 1938 -- valid
  Brachyramphichthys elegans (Steindachner, 1880) -- invalid
  Brachyrhamdia Myers, 1927 -- valid
  Brachyrhaphis Regan, 1913 -- valid
  Brachyrhaphis episcopi (Steindachner, 1878) -- valid -- Bischofskarpfling, Colonkarpfling
  Brachysomophis Kaup, 1856 -- valid
  Brachysomophis henshawi Jordan and Snyder, 1904 -- valid
  Brachysomophis sauropsis Schultz, 1943 -- invalid
  Brama Bloch and Schneider, 1801 -- valid -- pomfrets
  Brama brama (Bonnaterre, 1788) -- valid -- Atlantic pomfret, brama
  Brama caribbea Mead, 1972 -- valid -- Caribbean pomfret, tristón del Caribe
  Brama dussumieri Cuvier in Cuvier and Valenciennes, 1831 -- valid -- lowfin pomfret
  Brama orcini Cuvier in Cuvier and Valenciennes, 1831 -- valid -- bigtooth pomfret, tropical pomfret
  Branchioica Eigenmann, 1917 -- invalid
  Branchiostegus Rafinesque, 1815 -- valid
  Bregmaceros Thompson, 1840 -- valid
  Bregmaceros arabicus D'Ancona and Cavinato, 1965 -- valid
  Bregmaceros atlanticus Goode and Bean, 1886 -- valid -- antenna codlet, ciliado, bacalete antena
  Bregmaceros bathymaster Jordan and Bollman, 1890 -- valid -- East Pacific codlet, bacalete del Pacífico oriental
  Bregmaceros cantori Milliken and Houde, 1984 -- valid -- striped codlet, bacalete rayado
  Bregmaceros cayorum Nichols, 1952 -- valid
  Bregmaceros houdei Saksena and Richards, 1986 -- valid -- stellate codlet
  Bregmaceros japonicus Tanaka, 1908 -- valid
  Bregmaceros lanceolatus Shen, 1960 -- valid
  Bregmaceros longipes Garman, 1899 -- invalid
  Bregmaceros neonectabanus Masuda, Ozawa and Tabeta, 1986 -- valid
  Bregmaceros pescadorus Shen, 1960 -- valid
  Bregmaceros rarisquamosus Munro, 1950 -- valid
  Breitensteinia Steindachner, 1881 -- valid
  Breitensteinia insignis Steindachner, 1881 -- valid
  Breviraja Bigelow and Schroeder, 1948 -- valid -- lightnose skates
  Breviraja atripinna Bigelow and Schroeder, 1950 -- invalid -- blackfin skate
  Breviraja claramaculata McEachran and Matheson, 1985 -- valid -- brightspot skate
  Breviraja colesi Bigelow and Schroeder, 1948 -- valid -- lightnose skate
  Breviraja cubensis Bigelow and Schroeder, 1950 -- invalid
  Breviraja ishiyamai Bigelow and Schroeder, 1962 -- invalid
  Breviraja marklei McEachran and Miyake, 1987 -- valid -- Markle's skate
  Breviraja mouldi McEachran and Matheson, 1995 -- valid -- blacknose skate
  Breviraja nigriventralis McEachran and Matheson, 1985 -- valid -- blackbelly skate
  Breviraja pallida Forster, 1967 -- invalid
  Breviraja plutonia Garman, 1881 -- invalid -- longtail skate
  Breviraja sinusmexicanus (Bigelow and Schroeder, 1950) -- invalid
  Breviraja spinacidermis (Barnard, 1923) -- invalid
  Breviraja spinosa Bigelow and Schroeder, 1950 -- valid -- spinose skate
  Breviraja yucatanensis Bigelow and Schroeder, 1950 -- invalid
  Brevoortia Gill, 1861 -- valid -- menhadens
  Brevoortia aurea (Spix and Agassiz, 1829) -- valid -- Brazilian menhaden
  Brevoortia gunteri Hildebrand, 1948 -- valid -- finescale menhaden, sardina escamitas
  Brevoortia patronus Goode, 1878 -- valid -- sardina lacha, Gulf menhaden, largescale menhaden
  Brevoortia pectinata (Jenyns, 1842) -- valid -- Argentine menhaden
  Brevoortia smithi Hildebrand, 1941 -- valid -- yellowfin menhaden
  Brevoortia tyrannus (Latrobe, 1802) -- valid -- menhaden, alose tyran, Atlantic menhaden, bugfish, bunker, fatback, mossbunker
  Brienomyrus Taverne, 1971 -- valid
  Brienomyrus adustus (Fowler, 1936) -- valid
  Brienomyrus brachyistius (Gill, 1862) -- valid
  Brienomyrus curvifrons Taverne, Thys van den Audenaerde, Heymer and Géry, 1977 -- valid
  Brienomyrus longianalis (Boulenger, 1901) -- valid
  Brienomyrus longicaudatus Taverne, Thys van den Audenaerde, Heymer and Géry, 1977 -- valid
  Brienomyrus sphekodes (Sauvage, 1879) -- valid
  Brienomyrus tavernei Poll, 1972 -- valid
  Brinkmannella Parr, 1933 -- valid
  Brochis Cope, 1871 -- valid
  Brochis splendens (Castelnau, 1855) -- valid
  Brosme Oken, 1817 -- valid
  Brosmiculus Vaillant, 1888 -- invalid
  Brosmiculus imberbis Vaillant, 1888 -- invalid
  Brosmophyciops Schultz in Schultz, Chapman, Lachner and Woods, 1960 -- valid
  Brosmophyciops pautzkei Schultz in Schultz, Chapman, Lachner and Woods, 1960 -- valid
  Brosmophycis Gill, 1861 -- valid
  Brosmophycis marginata (Ayres, 1854) -- valid -- red brotula, brótula roja
  Brotula Cuvier, 1829 -- valid -- brotulas
  Brotula barbata (Bloch and Schneider, 1801) -- valid -- bearded brotula, Atlantic bearded brotula, brótula barbona, brótula
  Brotula clarkae Hubbs, 1944 -- valid -- Pacific bearded brotula, lengua rosada
  Brotula multibarbata Temminck and Schlegel, 1846 -- valid -- bearded brotula, goatsbeard brotula, brótula barba de carnero, brotule barbe-de-boue
  Brotula ordwayi Hildebrand and Barton, 1949 -- valid -- fore-spotted brotula, lengua pintada
  Brotula townsendi Fowler, 1900 -- valid
  Brotulina Fowler, 1946 -- valid
  Brotulina erythrea (Fowler, 1946) -- valid
  Brotulina fusca Fowler, 1946 -- valid
  Brotulina piger (Alcock, 1890) -- valid
  Brotulotaenia Parr, 1933 -- valid
  Brotulotaenia brevicauda Cohen, 1974 -- valid
  Brotulotaenia crassa Parr, 1934 -- valid
  Brotulotaenia nielseni Cohen, 1974 -- valid
  Brotulotaenia nigra Parr, 1933 -- valid
  Brycinus Valenciennes in Cuvier and Valenciennes, 1850 -- valid
  Brycinus abeli (Fowler, 1936) -- valid
  Brycinus imberi (Peters, 1852) -- valid
  Brycinus macrolepidotus Valenciennes in Cuvier and Valenciennes, 1850 -- valid
  Brycinus opisthotaenia (Boulenger, 1903) -- valid
  Brycinus poptae (Pellegrin, 1906) -- valid
  Brycon Müller and Troschel, 1844 -- valid
  Brycon falcatus Müller and Troschel, 1844 -- valid -- nipon
  Brycon petrosus Meek and Hildebrand, 1913 -- valid
  Bryconalestes Hoedeman, 1951 -- invalid
  Bryconalestes longipinnis (Günther, 1864) -- invalid
  Bryconamericus Eigenmann in Eigenmann, McAtee and Ward, 1907 -- valid
  Bryconamericus alfredae Eigenmann, 1927 -- valid
  Bryconamericus grosvenori Eigenmann, 1927 -- valid
  Bryconops Kner, 1858 -- valid
  Bryconops alburnoides Kner, 1858 -- valid
  Bryostemma Jordan and Starks, 1895 -- invalid
  Bryostemma tarsodes Jordan and Snyder, 1902 -- invalid
  Bryozoichthys Whitley, 1931 -- valid
  Bryozoichthys lysimus (Jordan and Snyder, 1902) -- valid -- nutcracker prickleback
  Bryozoichthys marjorius McPhail, 1970 -- valid -- pearly prickleback
  Bryttus Valenciennes in Cuvier and Valenciennes, 1831 -- invalid
  Bryttus fasciatus Holbrook, 1855 -- invalid
  Bryttus gloriosus Holbrook, 1855 -- invalid
  Bryttus obesus (Girard, 1854) -- invalid
  Bryx Herald, 1940 -- valid
  Bryx dunckeri (Metzelaar, 1919) -- valid -- pugnose pipefish, trompetero nariz-corto, pez pipa ñato
  Buenia Iljin, 1930 -- valid
  Buenia affinis Iljin, 1930 -- valid
  Buenia jeffreysi (Günther, 1867) -- invalid -- Jeffrey's goby
  Buenia jeffreysii (Günther, 1867) -- valid -- Jeffrey's goby
  Buglossidium luteum (Risso, 1810) -- valid -- solenette
  Bujurquina Kullander, 1986 -- valid
  Bujurquina mariae (Eigenmann, 1922) -- valid -- Mary's cichlid
  Bullisichthys Rivas, 1971 -- valid
  Bullockia Arratia, Chang, Menu-Marque and Rojas, 1978 -- valid
  Bunocephalichthys Bleeker, 1858 -- invalid
  Bunocephalus Kner, 1855 -- valid
  Bunocephalus bicolor Steindachner, 1882 -- invalid
  Bunocephalus coracoideus (Cope, 1874) -- valid
  Bunocottus Kner, 1958 -- invalid
  Burgessius Maugé and Bauchot, 1984 -- invalid
  Butis Bleeker, 1856 -- valid -- flathead gudgeons
  Butis amboinensis (Bleeker, 1853) -- valid -- Ambon gudgeon
  Bythites Reinhardt, 1835 -- valid
  Bythites fuscus Reinhardt, 1837 -- valid
  Bythites gerdae Nielsen and Cohen, 1973 -- valid
  Bythites islandicus Nielsen and Cohen, 1973 -- valid
  Bythites lepidogenys Smith and Radcliffe in Radcliffe, 1913 -- invalid
  Cacodoxus Cantor, 1849 -- invalid
  Cacodoxus argus (Linnaeus, 1766) -- invalid
  Caecilia Lacepède, 1800 -- invalid
  Caecilia branderiana Lacepède, 1800 -- invalid
  Caecomastacembelus Poll, 1958 -- invalid
  Caecula Vahl, 1794 -- valid
  Caecula leucoptera Cadenat, 1954 -- invalid
  Caecula maculata Klausewitz, 1964 -- invalid
  Caecula pterygera Vahl, 1794 -- valid
  Caelorinchus Giorna, 1809 -- valid
  Caelorinchus acanthiger Barnard, 1925 -- valid -- surgeon grenadier
  Caelorinchus acantholepis Gilbert and Hubbs, 1920 -- valid
  Caelorinchus aconcagua Iwamoto, 1978 -- valid -- Aconcagua grenadier
  Caelorinchus acutirostris Smith and Radcliffe in Radcliffe, 1912 -- valid
  Caelorinchus anatirostris Jordan and Gilbert in Jordan and Starks, 1904 -- valid -- duckbill grenadier
  Caelorinchus aratrum Gilbert, 1905 -- valid
  Caelorinchus argentatus Smith and Radcliffe in Radcliffe, 1912 -- valid -- silver whiptail
  Caelorinchus argus Weber, 1913 -- valid -- eyespot grenadier
  Caelorinchus aspercephalus Waite, 1911 -- valid -- rough-head whiptail
  Caelorinchus asteroides Okamura, 1963 -- valid
  Caelorinchus australis (Richardson, 1839) -- valid -- javelinfish, javelin
  Caelorinchus biclinozonalis Arai and McMillan, 1982 -- valid -- two-barred whiptail
  Caelorinchus bollonsi McCann and McKnight, 1980 -- valid
  Caelorinchus braueri Barnard, 1925 -- valid -- shovelnose grenadier
  Caelorinchus brevirostris Okamura in Okamura and Kitajima, 1984 -- valid
  Caelorinchus caelorhincus (Risso, 1810) -- valid -- saddled grenadier, hollowsnout grenadier, granadero tristón, grenadier acorazado, grenadier raton
  Caelorinchus caelorhincus caelorhincus (Risso, 1810) -- valid
  Caelorinchus canus (Garman, 1899) -- valid -- clearsnout grenadier
  Caelorinchus caribbaeus (Goode and Bean, 1885) -- valid -- blackfin grenadier, granadero alinegro, granadero caribeño
  Caelorinchus carinifer Gilbert and Hubbs, 1920 -- valid
  Caelorinchus chilensis Gilbert and Thompson in Thompson, 1916 -- valid -- Chilean grenadier
  Caelorinchus cingulatus Gilbert and Hubbs, 1920 -- valid
  Caelorinchus commutabilis Smith and Radcliffe in Radcliffe, 1912 -- valid
  Caelorinchus cookianus McCann and McKnight, 1980 -- valid
  Caelorinchus denticulatus Regan, 1921 -- valid -- filesnout grenadier
  Caelorinchus divergens Okamura and Yatou in Okamura and Kitajima, 1984 -- valid
  Caelorinchus dorsalis Gilbert and Hubbs, 1920 -- valid
  Caelorinchus doryssus Gilbert, 1905 -- valid
  Caelorinchus fasciatus (Günther, 1878) -- valid -- rattail, banded whiptail
  Caelorinchus flabellispinis (Alcock, 1894) -- invalid
  Caelorinchus formosanus Okamura, 1963 -- valid -- Formosa grenadier
  Caelorinchus gilberti Jordan and Hubbs, 1925 -- valid
  Caelorinchus gladius Gilbert and Cramer, 1897 -- valid
  Caelorinchus hexafasciatus Okamura in Okamura, Amaoka and Mitani, 1982 -- valid -- six-band grenadier
  Caelorinchus hige Matsubara, 1943 -- valid
  Caelorinchus hubbsi Matsubara, 1936 -- valid
  Caelorinchus innotabilis McCulloch, 1907 -- valid -- notable whiptail, longnose whiptail
  Caelorinchus japonicus (Temminck and Schlegel, 1846) -- valid -- Japanese grenadier
  Caelorinchus jordani Smith and Pope, 1906 -- valid
  Caelorinchus kaiyomaru Arai and Iwamoto, 1979 -- valid -- Campbell whiptail
  Caelorinchus kamoharai Matsubara, 1943 -- valid -- Kamohara whiptail, Kamohara grenadier
  Caelorinchus karrerae Trunov, 1984 -- valid -- Karrer's whiptail
  Caelorinchus kermadecus Jordan and Gilbert in Jordan and Starks, 1904 -- valid
  Caelorinchus kishinouyei Jordan and Snyder, 1900 -- valid -- Mugura whiptail, Mugura grenadier
  Caelorinchus labiatus (Koehler, 1896) -- valid -- spearsnouted grenadier
  Caelorinchus longicephalus Okamura in Okamura, Amaoka and Mitani, 1982 -- valid -- longhead grenadier
  Caelorinchus longissimus Matsubara, 1943 -- valid
  Caelorinchus macrochir (Günther, 1877) -- valid -- longarm grenadier
  Caelorinchus macrolepis Gilbert and Hubbs, 1920 -- valid
  Caelorinchus macrorhynchus Smith and Radcliffe in Radcliffe, 1912 -- valid
  Caelorinchus maculatus Gilbert and Hubbs, 1920 -- valid
  Caelorinchus marinii Hubbs, 1934 -- valid -- Marini's grenadier
  Caelorinchus matamua (McCann and McKnight, 1980) -- valid -- Mahia whiptail, blue-banded whiptail
  Caelorinchus matsubarai Okamura in Okamura, Amaoka and Mitani, 1982 -- valid
  Caelorinchus mirus McCulloch, 1926 -- valid
  Caelorinchus multispinulosus Katayama, 1942 -- valid -- spearnose grenadier
  Caelorinchus notatus Smith and Radcliffe in Radcliffe, 1912 -- valid
  Caelorinchus occa (Goode and Bean, 1885) -- valid -- swordsnout grenadier
  Caelorinchus oliverianus Phillipps, 1927 -- valid -- hawknose grenadier
  Caelorinchus parallelus (Günther, 1877) -- valid -- spiny rattail, spiny grenadier
  Caelorinchus platorhynchus Smith and Radcliffe in Radcliffe, 1912 -- valid
  Caelorinchus quadricristatus (Alcock, 1891) -- valid
  Caelorinchus quincunciatus Gilbert and Hubbs, 1920 -- valid
  Caelorinchus radcliffei Gilbert and Hubbs, 1920 -- valid
  Caelorinchus scaphopsis (Gilbert, 1890) -- valid -- granadero carepala, shoulderspot grenadier
  Caelorinchus sexradiatus Gilbert and Hubbs, 1920 -- valid
  Caelorinchus smithi Gilbert and Hubbs, 1920 -- valid
  Caelorinchus sparsilepis Okamura in Okamura and Kitajima, 1984 -- valid
  Caelorinchus spinifer Gilbert and Hubbs, 1920 -- valid
  Caelorinchus thompsoni Gilbert and Hubbs, 1920 -- valid
  Caelorinchus tokiensis (Steindachner and Döderlein, 1887) -- valid
  Caelorinchus triocellatus Gilbert and Hubbs, 1920 -- valid
  Caelorinchus velifer Gilbert and Hubbs, 1920 -- valid
  Caelorinchus ventrilux Marshall and Iwamoto, 1973 -- valid
  Caelorinchus weberi Gilbert and Hubbs, 1920 -- valid
  Caenotropus Günther, 1864 -- valid
  Caenotropus mestomorgmatos Vari, Castro and Raredon, 1995 -- valid
  Caesio Lacepède, 1801 -- valid
  Caesio caerulaurea Lacepède, 1801 -- valid -- blue-and-gold fusilier, Goldband Fusilier, Blue and gold fusilier, Fusilero azur, Caesio azuror
  Caesio chrysozona Cuvier in Cuvier and Valenciennes, 1830 -- invalid -- blacktipped fusilier
  Caesio cuning (Bloch, 1791) -- valid -- Yellowtail Fusilier, redbelly yellowtail fusilier, caesio à ventre rouge, fusilero vientre colorado
  Caesio erythrogaster Cuvier in Cuvier and Valenciennes, 1830 -- invalid -- redbellied fusilier
  Caesio lunaris Cuvier in Cuvier and Valenciennes, 1830 -- valid -- moon caesio, moon fusilier, Lunar Fusilier, caesio à croissant, fusilero luna
  Caesio striata Rüppell, 1830 -- valid -- striated fusilier
  Caesio suevica Klunzinger, 1884 -- valid -- Suez fusilier, Fusilier de Suez, Fusilero de Suez
  Caesio teres Seale, 1906 -- valid -- yellow-and-blueback fusilier, Blue Fusilier, Yellow and blueback fusilier, Fusilier à dos jaune et bleu, Fusilero amarillo azulado
  Caesio varilineata Carpenter, 1987 -- valid -- variable-lined fusilier, fusilier à bandes variées, fusilero listado
  Caesio xanthonota Bleeker, 1853 -- valid -- yellowback fusilier, fusilier à dos jaune, fusilero de lomo amarillo
  Caesioperca Castelnau, 1872 -- valid
  Cairnsichthys Allen, 1980 -- valid
  Calamoichthys Smith, 1866 -- invalid
  Calamoichthys calabaricus (Smith, 1865) -- invalid -- reedfish, ropefish
  Calamopteryx Böhlke and Cohen, 1966 -- valid
  Calamopteryx goslinei Böhlke and Cohen, 1966 -- valid -- brótula aletona, longarm brotula
  Calamopteryx jeb Cohen, 1973 -- valid
  Calamopteryx robinsorum Cohen, 1973 -- valid -- teacher brotula, brótula del profesor
  Calamus Swainson, 1839 -- valid
  Calamus arctifrons Goode and Bean, 1882 -- valid -- grass porgy
  Calamus bajonado (Bloch and Schneider, 1801) -- valid -- jolthead porgy, bajonao violáceo, pluma
  Calamus brachysomus (Lockington, 1880) -- valid -- Pacific porgy, pluma marotilla
  Calamus calamus (Valenciennes in Cuvier and Valenciennes, 1830) -- valid -- saucereye porgy, pez de pluma
  Calamus cervigoni Randall and Caldwell, 1966 -- valid
  Calamus leucosteus Jordan and Gilbert in Jordan, 1885 -- valid -- whitebone porgy, pluma golfina
  Calamus nodosus Randall and Caldwell, 1966 -- valid -- knobbed porgy, mojarrón pecoso
  Calamus penna (Valenciennes in Cuvier and Valenciennes, 1830) -- valid -- sheepshead porgy, pez de pluma manchado, pluma manchada
  Calamus pennatula Guichenot, 1868 -- valid -- bajonao plateado, pluma, pluma del Caribe, pluma porgy
  Calamus proridens Jordan and Gilbert, 1884 -- valid -- littlehead porgy, pez de pluma rayado, pluma jorobada
  Callanthias Lowe, 1839 -- valid
  Callechelys Kaup, 1856 -- valid
  Callechelys bilinearis Kanazawa, 1952 -- valid -- twostripe snake eel, tieso dos rayas
  Callechelys bitaeniata (Peters, 1877) -- valid
  Callechelys catostoma (Schneider and Forster in Bloch and Schneider, 1801) -- valid
  Callechelys catostomus (Schneider and Forster in Bloch and Schneider, 1801) -- invalid
  Callechelys cliffi Böhlke and Briggs, 1954 -- valid -- sandy ridgefin eel, tieso aquillado arenero
  Callechelys eristigma McCosker and Rosenblatt, 1972 -- valid -- spotted ridgefin eel, tieso aquillado manchado
  Callechelys galapagensis McCosker and Rosenblatt, 1972 -- valid
  Callechelys guineensis (Osório, 1893) -- valid -- shorttail snake eel, tieso colicorta
  Callechelys leucoptera (Cadenat, 1954) -- valid
  Callechelys lutea Snyder, 1904 -- valid
  Callechelys luteus Snyder, 1904 -- invalid
  Callechelys marmorata (Bleeker, 1853) -- valid -- marbled snake eel
  Callechelys marmoratus (Bleeker, 1853) -- invalid -- marbled snake eel
  Callechelys melanotaenia Bleeker, 1864 -- invalid
  Callechelys muraena Jordan and Evermann, 1887 -- valid -- blotched snake eel, tieso moteado
  Callechelys perryae Storey, 1939 -- invalid -- shorttail snake eel
  Callechelys springeri (Ginsburg, 1951) -- valid -- ridgefin eel
  Callicanthus Swainson, 1839 -- invalid
  Callicanthus lituratus (Forster in Bloch & Schneider, 1801) -- invalid -- striped-face unicornfish
  Callicanthus metoposophron Jenkins, 1903 -- invalid
  Callichthys Scopoli, 1777 -- valid
  Callichthys adspersus Steindachner, 1876 -- invalid
  Callichthys barbatus Quoy and Gaimard, 1824 -- invalid
  Callichthys callichthys (Linnaeus, 1758) -- valid -- armoured catfish, cascarudo, hassar
  Callichthys paleatus Jenyns, 1842 -- invalid
  Callichthys thoracatus Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Calliodon Bloch and Schneider, 1801 -- invalid
  Callionymus Linnaeus, 1758 -- valid
  Callionymus bairdi Jordan in Eigenmann and Eigenmann, 1888 -- invalid -- dragoncillo coralino, lancer dragonet
  Callionymus bermudarum Barbour, 1905 -- invalid -- Bermuda dragonet
  Callionymus caeruleonotatus Gilbert, 1905 -- invalid
  Callionymus calauropomus Richardson, 1844 -- invalid -- mottled dragonet, mottled dragonet
  Callionymus calcaratus Macleay, 1881 -- invalid -- stinkfish, stinkfish
  Callionymus calliste Jordan and Fowler, 1903 -- invalid -- ornate dragonet, ornate dragonet
  Callionymus corallinus Gilbert, 1905 -- valid
  Callionymus dactylopus Valenciennes in Cuvier and Valenciennes, 1837 -- invalid
  Callionymus decoratus (Gilbert, 1905) -- valid
  Callionymus enneactis Bleeker, 1879 -- valid
  Callionymus enneactis calliste Jordan and Fowler, 1903 -- valid -- ornate dragonet
  Callionymus filamentosus Valenciennes in Cuvier and Valenciennes, 1837 -- valid
  Callionymus grossi Ogilby, 1910 -- valid -- gross's dragonet, Gross's dragonet
  Callionymus himantophorus Goode and Bean, 1896 -- invalid
  Callionymus japonicus Houttuyn, 1782 -- valid -- Japanese dragonet
  Callionymus limiceps Ogilby, 1908 -- valid -- rough-headed dragonet, rough-headed dragonet
  Callionymus lyra Linnaeus, 1758 -- valid -- common dragonet, common dragonet, european dragonet, European dragonet
  Callionymus macdonaldi Ogilby, 1911 -- valid -- greyspotted dragonet, greyspotted dragonet
  Callionymus maculatus Rafinesque, 1810 -- valid -- spotted dragonet, spotted dragonet
  Callionymus marleyi Regan, 1919 -- valid -- sand dragonet, sand dragonet
  Callionymus nasutus McCulloch, 1926 -- invalid -- longnosed dragonet, longnosed dragonet
  Callionymus pauciradiatus Gill, 1865 -- invalid
  Callionymus phaeton Günther, 1861 -- invalid
  Callionymus pusillus Delaroche, 1809 -- valid
  Callionymus rameus McCulloch, 1926 -- invalid -- splitfin dragonet, splitfin dragonet
  Callionymus reticulatus Valenciennes in Cuvier and Valenciennes, 1837 -- valid
  Callionymus risso Lesueur, 1814 -- valid
  Callionymus rubrovinctus Gilbert, 1905 -- invalid
  Callionymus sagitta Pallas, 1770 -- valid -- arrowheaded dragonet, arrowheaded dragonet
  Calliscyllium Tanaka, 1912 -- invalid
  Calliscyllium venustum Tanaka, 1912 -- invalid
  Calliurichthys Jordan and Fowler, 1903 -- invalid
  Calliurichthys astrinius Jordan and Jordan, 1922 -- invalid
  Calliurichthys japonicus (Houttuyn, 1782) -- invalid -- Japanese dragonet
  Calliurichthys zanectes Jordan and Jordan, 1922 -- invalid
  Callogobius Bleeker, 1874 -- valid
  Callogobius atratus Griffin, 1933 -- invalid -- goby, goby
  Callogobius hasseltii (Bleeker, 1851) -- valid -- van hasselt's goby, van hasselt's goby
  Callogobius mucosus (Günther, 1872) -- valid -- sculptured goby, sculptured goby
  Callopanchax Myers, 1933 -- valid
  Calloplesiops Fowler and Bean, 1930 -- valid
  Callorhinchus Lacepede, 1798 -- valid
  Callorhinchus capensis (Duméril, 1865) -- valid
  Callorhinchus milii (Bory de Saint-Vincent, 1823) -- valid
  Callorhynchus Fleming, 1822 -- valid
  Callorhynchus callorhynchus (Linnaeus, 1758) -- invalid
  Callorhynchus capensis Duméril, 1865 -- invalid
  Callorhynchus milii Bory de Saint-Vincent, 1823 -- invalid
  Callyodon Scopoli, 1777 -- invalid -- parrotfishes
  Callyodon bicolor (Rüppell, 1829) -- invalid -- spotted parrotfish
  Callyodon blochii (Valenciennes in Cuvier and Valenciennes, 1840) -- invalid -- Bloch's parrotfish
  Callyodon cyanotaenia (Bleeker, 1854) -- invalid -- red parrotfish
  Callyodon dussumieri (Valenciennes in Cuvier and Valenciennes, 1840) -- invalid -- Dussumier's parrotfish
  Callyodon erythrodon (Valenciennes in Cuvier and Valenciennes, 1840) -- invalid -- redtoothed parrotfish
  Callyodon forsteri (Valenciennes in Cuvier and Valenciennes, 1840) -- invalid -- Forster's parrotfish
  Callyodon harid (Forsskċl, 1775) -- invalid -- redlined parrotfish
  Callyodon limbatus (Valenciennes in Cuvier and Valenciennes, 1840) -- invalid -- Callyodon parrotfish
  Callyodontichthys Bleeker, 1861 -- invalid
  Calophysus Müller and Troschel in Müller, 1843 -- valid
  Calotomus Gilbert, 1890 -- valid
  Calotomus carolinus (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- stareyed parrotfish, pococho perico, stareye parrotfish
  Calotomus japonicus (Valenciennes in Cuvier and Valenciennes, 1840) -- valid
  Calotomus spinidens (Quoy and Gaimard, 1824) -- valid -- halftoothed parrotfish
  Calotomus zonarchus (Jenkins, 1903) -- valid -- yellowbar parrotfish
  Calycilepidotus Ayres, 1855 -- invalid
  Campellolebias Vaz-Ferreira and Sierra de Soriano, 1974 -- valid
  Campichthys Whitley, 1931 -- valid
  Campichthys galei (Duncker, 1909) -- valid
  Campichthys nanus Dawson, 1977 -- valid
  Campichthys tricarinatus Dawson, 1977 -- valid
  Campichthys tryoni (Ogilby, 1890) -- valid
  Campostoma Agassiz, 1855 -- valid -- stonerollers
  Campostoma anomalum (Rafinesque, 1820) -- valid -- roule-caillou, Central Stoneroller, rodapiedras del centro
  Campostoma oligolepis Hubbs and Greene, 1935 -- valid -- Largescale Stoneroller
  Campostoma ornatum Girard, 1856 -- valid -- Mexican Stoneroller, rodapiedras mexicano
  Campostoma pauciradii Burr and Cashner, 1983 -- valid -- Bluefin Stoneroller
  Campylomormyrus Bleeker, 1874 -- valid
  Campylomormyrus alces (Boulenger, 1920) -- valid
  Campylomormyrus bredoi (Poll, 1945) -- valid
  Campylomormyrus cassaicus (Poll, 1967) -- valid
  Campylomormyrus christyi (Boulenger, 1920) -- valid
  Campylomormyrus curvirostris (Boulenger, 1898) -- valid
  Campylomormyrus elephas (Boulenger, 1898) -- valid -- elephant-trunk mormyrid
  Campylomormyrus luapulaensis (David and Poll, 1937) -- valid
  Campylomormyrus mirus (Boulenger, 1898) -- valid
  Campylomormyrus orycteropus Poll, Gosse and Orts, 1982 -- valid
  Campylomormyrus phantasticus (Pellegrin, 1927) -- valid
  Campylomormyrus rhynchophorus (Boulenger, 1898) -- valid
  Campylomormyrus tamandua (Günther, 1864) -- valid -- wormjawed mormyrus
  Campylomormyrus tshokwe (Poll, 1967) -- valid
  Cancelloxus Smith, 1961 -- valid
  Cancelloxus burrelli Smith, 1961 -- valid -- slender platanna-klipfish, slender platanna-klipfish
  Cantherhines Swainson, 1839 -- valid
  Cantherhines dumerilii (Hollard, 1854) -- valid -- barred filefish, lija vagabunda, Barred Filefish
  Cantherhines fronticinctus (Günther in Playfair & Günther, 1867) -- valid -- spectacled filefish
  Cantherhines macrocerus (Hollard in Guichenot, 1853) -- valid -- whitespotted filefish, lija de lunares blancos, Whitespotted Filefish
  Cantherhines pardalis (Rüppell, 1837) -- valid -- honeycomb filefish
  Cantherhines pullus (Ranzani, 1842) -- valid -- orangespotted filefish, lija colorada, Orangespotted Filefish
  Cantherhines sandwichiensis (Quoy & Gaimard, 1824) -- valid -- brown leatherjacket
  Canthidermis Swainson, 1839 -- valid
  Canthidermis maculata (Bloch, 1786) -- valid -- rough triggerfish, sobaco manchado, cochito manchado, Rough Triggerfish
  Canthigaster Swainson, 1839 -- valid -- sharpnosed puffers
  Canthigaster amboinensis (Bleeker, 1864) -- valid -- pu'u ola'i, spotted toby
  Canthigaster bennetti (Bleeker, 1854) -- valid -- roseband toby
  Canthigaster callisternus (Ogilby, 1889) -- invalid -- sharpnosed puffer
  Canthigaster cinctus Jordan & Evermann, 1905 -- invalid -- foursaddle puffer
  Canthigaster coronata (Vaillant & Sauvage, 1875) -- valid
  Canthigaster epilampra (Jenkins, 1903) -- valid
  Canthigaster inframacula Allen & Randall, 1977 -- valid
  Canthigaster jactator (Jenkins, 1901) -- valid -- whitespotted toby
  Canthigaster janthinoptera (Bleeker, 1855) -- valid -- honeycomb toby
  Canthigaster oahuensis (Jenkins, 1903) -- invalid -- oahu puffer
  Canthigaster papua (Bleeker, 1848) -- valid
  Canthigaster rivulata (Temminck & Schlegel, 1850) -- valid
  Canthigaster rostrata (Bloch, 1786) -- valid -- sharpnose puffer, tamboril narizón, tamborín narizón, Sharpnose Puffer
  Canthigaster solandri (Richardson, 1845) -- valid -- false-eye toby
  Capoeta Valenciennes in Cuvier and Valenciennes, 1842 -- valid
  Caprichthys McCulloch & Waite, 1915 -- valid
  Caprichthys gymnura McCulloch & Waite, 1915 -- valid -- horned boxfish
  Caprodon Temminck and Schlegel, 1843 -- valid
  Caprodon schlegelii (Günther, 1859) -- valid
  Capromimus Gill, 1893 -- valid
  Capromimus abbreviatus (Hector, 1875) -- valid -- rough dory
  Capros Lacepède, 1802 -- valid
  Capros aper (Linnaeus, 1758) -- valid -- boarfish, cuckoofish
  Caracanthus Krĝyer, 1845 -- valid
  Caracanthus maculatus (Gray, 1831) -- valid -- spotted croucher
  Caracanthus unipinnus (Gray, 1831) -- invalid -- coral croucher
  Caracanthus zeylonicus (Day, 1870) -- valid -- Ceylonese velvetfish
  Caralophia Böhlke, 1955 -- valid
  Caralophia loxochila Böhlke, 1955 -- valid -- slantlip eel
  Carapus Rafinesque, 1810 -- valid -- pearlfishes
  Carapus acus (Brünnich, 1768) -- valid
  Carapus bermudensis (Jones, 1874) -- valid -- fierásfer, perlero del Atlántico, Atlantic pearlfish, pearlfish
  Carapus birpex Arnold, 1956 -- invalid
  Carapus boraborensis (Kaup, 1856) -- invalid
  Carapus cinereus Smith, 1955 -- invalid -- eel pearlfish
  Carapus cuspis Arnold, 1956 -- invalid
  Carapus dubius (Putnam, 1874) -- valid -- Pacific pearlfish, perlero del Pacífico
  Carapus homei (Richardson, 1846) -- invalid -- pearlfish, silver pearlfish
  Carapus houlti (Ogilby, 1922) -- invalid -- humback messmate
  Carapus inaequilabiatus Valenciennes, 1842 -- invalid
  Carapus kagoshimanus (Steindachner and Döderlein, 1887) -- invalid
  Carapus margaritiferae (Rendahl, 1921) -- invalid -- clam pearlfish
  Carapus mourlani (Petit, 1934) -- valid
  Carapus owasianus Matsubara, 1953 -- invalid
  Carapus parvipinnis (Kaup, 1865) -- invalid
  Carapus pindae Smith, 1955 -- invalid
  Carapus variegatus Fowler and Steinitz, 1956 -- invalid
  Carassius Nilsson, 1832 -- valid -- Crucian carps
  Carassius auratus (Linnaeus, 1758) -- valid -- goldfish, carpa dorada, carassin
  Carassius carassius (Linnaeus, 1758) -- valid -- crucian carp
  Carassius vulgaris Nilsson, 1840 -- invalid
  Carcharhinus Blainville, 1816 -- valid -- gray sharks
  Carcharhinus acarenatus Moreno and Hoyos, 1983 -- invalid
  Carcharhinus acronotus (Poey, 1860) -- valid -- tiburón cangüay, blacknose shark, tiburón limón
  Carcharhinus albimarginatus (Rüppell, 1837) -- valid -- tiburón puntas blancas, silvertip shark
  Carcharhinus altimus (Springer, 1950) -- valid -- tiburón narizón, bignose shark, baboso
  Carcharhinus amblyrhynchoides (Whitley, 1934) -- valid -- graceful shark
  Carcharhinus amblyrhynchos (Bleeker, 1856) -- valid -- grey reef shark
  Carcharhinus amboinensis (Müller and Henle, 1839) -- valid -- pigeye shark
  Carcharhinus atrodorsus Deng, Xiong and Zhan, 1981 -- invalid
  Carcharhinus azureus (Gilbert and Starks, 1904) -- invalid
  Carcharhinus brachyurus (Günther, 1870) -- valid -- tiburón cobrizo, copper shark, narrowtooth shark, bronze whaler
  Carcharhinus brevipinna (Müller and Henle, 1839) -- valid -- tiburón curro, spinner shark, tiburón de arrecife
  Carcharhinus cautus (Whitley, 1945) -- valid -- nervous shark
  Carcharhinus cerdale Gilbert in Jordan and Evermann, 1898 -- invalid
  Carcharhinus dussumieri (Müller and Henle, 1839) -- valid -- whitecheek shark
  Carcharhinus falciformis (Müller and Henle, 1839) -- valid -- tiburón piloto, silky shark, jaquetón
  Carcharhinus fitzroyensis (Whitley, 1943) -- valid -- creek whaler
  Carcharhinus floridanus Bigelow, Schroeder and Springer, 1943 -- invalid
  Carcharhinus galapagensis (Snodgrass and Heller, 1905) -- valid -- tiburón de Galápagos, Galapagos shark
  Carcharhinus gangeticus (Müller and Henle, 1839) -- invalid
  Carcharhinus hemiodon (Müller and Henle, 1839) -- valid -- pondicherry shark
  Carcharhinus improvisus Smith, 1952 -- invalid
  Carcharhinus iranzae Fourmanoir, 1961 -- invalid
  Carcharhinus isodon (Müller and Henle, 1839) -- valid -- tiburón dentiliso, finetooth shark, galano dientefino
  Carcharhinus japonicus (Temminck and Schlegel, 1850) -- invalid
  Carcharhinus leucas (Müller and Henle, 1839) -- valid -- tiburón toro, bull shark, cabeza de batea
  Carcharhinus limbatus (Müller and Henle, 1839) -- valid -- tiburón volador, blacktip shark, balicero
  Carcharhinus longimanus (Poey, 1861) -- valid -- tiburón oceánico, oceanic whitetip shark, galano
  Carcharhinus maculipinnis (Poey, 1865) -- invalid
  Carcharhinus maou (Lesson, 1831) -- invalid
  Carcharhinus melanopterus (Quoy and Gaimard, 1824) -- valid -- blacktip reef shark
  Carcharhinus menisorrah (Müller and Henle, 1839) -- valid
  Carcharhinus microphthalmus Chu, 1960 -- invalid
  Carcharhinus milberti (Müller and Henle, 1839) -- invalid
  Carcharhinus natator Meek and Hildebrand, 1923 -- invalid
  Carcharhinus nicaraguensis (Gill in Gill and Bransford, 1877) -- invalid
  Carcharhinus obscurella Deng, Xiong and Zhan, 1981 -- invalid
  Carcharhinus obscurus (Lesueur, 1818) -- valid -- tiburón gambuso, dusky shark, tiburón amarillo
  Carcharhinus oxyrhynchus (Müller and Henle, 1839) -- invalid
  Carcharhinus perezii (Poey, 1876) -- valid -- tiburón coralino, Caribbean reef shark, reef shark, cabeza dura
  Carcharhinus platyrhynchus (Gilbert, 1892) -- invalid
  Carcharhinus plumbeus (Nardo, 1827) -- valid -- tiburón aleta de cartón, sandbar shark, arenero
  Carcharhinus porosus (Ranzani, 1839) -- valid -- tiburón poroso, smalltail shark
  Carcharhinus radamae Fourmanoir, 1961 -- invalid
  Carcharhinus remotoides Deng, Xiong and Zhan, 1981 -- invalid
  Carcharhinus remotus (Duméril, 1865) -- invalid
  Carcharhinus rochensis Abella, 1972 -- invalid
  Carcharhinus sealei (Pietschmann, 1913) -- valid -- blackspot shark
  Carcharhinus signatus (Poey, 1868) -- valid -- tiburón nocturno, night shark, tiburón de noche
  Carcharhinus sorrah (Müller and Henle, 1839) -- valid -- spot-tail shark
  Carcharhinus temmincki (Müller and Henle, 1839) -- invalid
  Carcharhinus tephrodes Fowler, 1905 -- invalid
  Carcharhinus tilstoni (Whitley, 1950) -- valid
  Carcharhinus vanrooyeni Smith, 1958 -- invalid
  Carcharhinus velox Gilbert in Jordan and Evermann, 1898 -- invalid
  Carcharhinus wheeleri Garrick, 1982 -- valid -- blacktail reef shark
  Carcharhinus zambezensis (Peters, 1852) -- invalid
  Carcharias Rafinesque, 1810 -- valid -- largetooth sand tigers
  Carcharias aaronis Hemprich and Ehrenberg, 1899 -- invalid
  Carcharias acutidens Rüppell, 1837 -- invalid
  Carcharias acutus Rüppell, 1837 -- invalid
  Carcharias aethalorus Jordan and Gilbert, 1882 -- invalid
  Carcharias aethlorus Jordan and Gilbert, 1882 -- invalid
  Carcharias albimarginatus Rüppell, 1837 -- invalid
  Carcharias amblyrhynchos Bleeker, 1856 -- invalid
  Carcharias amboinensis Müller and Henle, 1839 -- invalid
  Carcharias azureus Gilbert and Starks, 1904 -- invalid
  Carcharias bleekeri Duméril, 1865 -- invalid
  Carcharias borneensis Seale, 1910 -- invalid
  Carcharias borneensis Bleeker, 1858 -- invalid
  Carcharias brachyrhynchos Bleeker, 1859 -- invalid
  Carcharias brachyurus Günther, 1870 -- invalid
  Carcharias brevipinna Müller and Henle, 1839 -- invalid
  Carcharias ceruleus DeKay, 1842 -- invalid
  Carcharias crenidens Klunzinger, 1880 -- invalid
  Carcharias dumerilii Bleeker, 1856 -- invalid
  Carcharias dussumieri Müller and Henle, 1839 -- invalid
  Carcharias ehrenbergi Klunzinger, 1871 -- invalid
  Carcharias elegans Ehrenberg in Klunzinger, 1871 -- invalid
  Carcharias ellioti Day, 1878 -- invalid
  Carcharias eumeces Pietschmann, 1913 -- invalid
  Carcharias falciformis Müller and Henle, 1839 -- invalid
  Carcharias fasciatus Bleeker, 1852 -- invalid
  Carcharias ferox (Risso, 1810) -- invalid
  Carcharias forskalii Klunzinger, 1871 -- invalid
  Carcharias fronto Jordan and Gilbert, 1882 -- invalid
  Carcharias gangeticus Müller and Henle, 1839 -- invalid
  Carcharias glyphis Müller and Henle, 1839 -- invalid
  Carcharias gracilis Philippi, 1887 -- invalid
  Carcharias hemiodon Müller and Henle, 1839 -- invalid
  Carcharias hemprichii Klunzinger, 1871 -- invalid
  Carcharias henlei Müller and Henle, 1839 -- invalid
  Carcharias henlei Bleeker, 1853 -- invalid
  Carcharias hirundinaceus Valenciennes in Müller and Henle, 1839 -- invalid
  Carcharias insularum Snyder, 1904 -- invalid
  Carcharias isodon Müller and Henle, 1839 -- invalid
  Carcharias japonicus Temminck and Schlegel, 1850 -- invalid
  Carcharias javanicus Bleeker, 1852 -- invalid
  Carcharias kamoharai Matsubara, 1936 -- invalid
  Carcharias lalandii Müller and Henle, 1839 -- invalid
  Carcharias lamiella Jordan and Gilbert, 1882 -- invalid
  Carcharias latistomus Fang and Wang, 1932 -- invalid
  Carcharias leucas Müller and Henle, 1839 -- invalid
  Carcharias limbatus Müller and Henle, 1839 -- invalid
  Carcharias longurio Jordan and Gilbert, 1882 -- invalid
  Carcharias macloti Müller and Henle, 1839 -- invalid
  Carcharias macrurus Ramsay and Ogilby, 1887 -- invalid
  Carcharias malabaricus Day, 1873 -- invalid
  Carcharias marianensis Engelhardt, 1912 -- invalid
  Carcharias melanopterus Quoy and Gaimard, 1824 -- invalid
  Carcharias menisorrah Müller and Henle, 1839 -- invalid
  Carcharias microps Lowe, 1841 -- invalid
  Carcharias muelleri Steindachner, 1867 -- invalid
  Carcharias muelleri Müller and Henle, 1839 -- invalid
  Carcharias munzingeri Kossmann and Räuber, 1877 -- invalid
  Carcharias murrayi Günther, 1883 -- invalid
  Carcharias nesiotes Snyder, 1904 -- invalid
  Carcharias obesus Rüppell, 1837 -- invalid
  Carcharias obtusirostris Moreau, 1881 -- invalid
  Carcharias oxyrhynchus Müller and Henle, 1839 -- invalid
  Carcharias palasoora Bleeker, 1853 -- invalid
  Carcharias phorcys Jordan and Evermann, 1903 -- invalid
  Carcharias playfairii Günther, 1870 -- invalid
  Carcharias pleurotaenia Bleeker, 1852 -- invalid
  Carcharias porosus Ranzani, 1839 -- invalid
  Carcharias pugae Perez Canto, 1886 -- invalid
  Carcharias remotus Duméril, 1865 -- invalid
  Carcharias sealei Pietschmann, 1913 -- invalid
  Carcharias sorrah Müller and Henle, 1839 -- invalid
  Carcharias sorrahkowa Bleeker, 1853 -- invalid
  Carcharias spenceri Ogilby, 1910 -- invalid
  Carcharias stevensi Ogilby, 1911 -- invalid
  Carcharias taeniatus Hemprich and Ehrenberg, 1899 -- invalid
  Carcharias taurus Rafinesque, 1810 -- valid -- tiburón arenero tigre, tigre arenero, sand tiger, sand tiger shark
  Carcharias temminckii Müller and Henle, 1839 -- invalid
  Carcharias tephrodes (Fowler, 1905) -- invalid
  Carcharias tjutjot Bleeker, 1852 -- invalid
  Carcharias tricuspidatus Day, 1878 -- invalid -- Indian sand tiger
  Carcharias walbeehmi Bleeker, 1856 -- invalid
  Carcharodon Smith in Müller and Henle, 1838 -- valid
  Carcharodon albimors Whitley, 1939 -- invalid
  Carcharodon carcharias (Linnaeus, 1758) -- valid -- great white shark, white shark, tiburón blanco, jaquetón de ley, requin blanc
  Careproctus Krĝyer, 1862 -- valid
  Careproctus abbreviatus Burke, 1930 -- valid
  Careproctus acanthodes Gilbert and Burke, 1912 -- valid
  Careproctus amblystomopsis Andriashev, 1955 -- invalid
  Careproctus attenuatus Gilbert and Burke, 1912 -- valid
  Careproctus bowersianus Gilbert and Burke, 1912 -- valid
  Careproctus cameliae Nalbant, 1965 -- invalid
  Careproctus candidus Gilbert and Burke, 1912 -- valid -- bigeye snailfish
  Careproctus colletti Gilbert, 1896 -- valid
  Careproctus cypseluroides Schmidt, 1950 -- valid
  Careproctus cypselurus (Jordan and Gilbert in Jordan and Evermann, 1898) -- valid
  Careproctus ectenes Gilbert, 1896 -- valid
  Careproctus furcellus Gilbert and Burke, 1912 -- valid -- emarginate snailfish
  Careproctus gilberti Burke, 1912 -- valid -- smalldisk snailfish
  Careproctus longifilis Garman, 1892 -- valid
  Careproctus longipinnis Burke, 1912 -- valid -- longfin snailfish, limace à longues nageoires
  Careproctus mederi Schmidt, 1916 -- valid
  Careproctus melanuroides Schmidt, 1950 -- valid
  Careproctus melanurus Gilbert, 1892 -- valid -- blacktail snailfish, baboso colinegra
  Careproctus mollis Gilbert and Burke, 1912 -- valid
  Careproctus nigricans Schmidt, 1950 -- valid
  Careproctus opisthotremus Gilbert and Burke, 1912 -- valid
  Careproctus ostentum Gilbert, 1896 -- valid -- microdisk snailfish
  Careproctus ovigerum (Gilbert, 1896) -- invalid -- abyssal snailfish
  Careproctus phasma Gilbert, 1896 -- valid -- spectral snailfish
  Careproctus pycnosoma Gilbert and Burke, 1912 -- valid
  Careproctus rastrinoides Schmidt, 1950 -- valid
  Careproctus rastrinus Gilbert and Burke, 1912 -- valid -- salmon snailfish
  Careproctus reinhardi (Krĝyer, 1862) -- invalid
  Careproctus reinhardti (Krĝyer, 1862) -- valid -- sea tadpole, petite limace de mer
  Careproctus roseofuscus Gilbert and Burke, 1912 -- valid
  Careproctus scottae Chapman and DeLacy, 1934 -- valid -- peachskin snailfish
  Careproctus segaliensis Gilbert and Burke, 1912 -- valid
  Careproctus simus Gilbert, 1896 -- valid
  Careproctus spectrum Bean, 1890 -- valid -- stippled snailfish
  Careproctus trachysoma Gilbert and Burke, 1912 -- valid
  Caristius Gill and Smith, 1905 -- valid
  Caristius japonicus Gill and Smith, 1905 -- valid
  Caristius macropus (Bellotti, 1903) -- valid -- manefish, manefish
  Carlana Strand, 1928 -- valid
  Carlana eigenmanni (Meek, 1912) -- valid
  Carlastyanax Géry, 1972 -- valid
  Carlastyanax aurocaudatus (Eigenmann, 1913) -- valid -- goldentailed astyanax, goldentailed astyanax
  Carlhubbsia Whitley, 1951 -- valid
  Carnegiella Eigenmann, 1909 -- valid
  Carnegiella marthae Myers, 1927 -- valid -- blackwinged hatchetfish, blackwinged hatchetfish
  Carnegiella marthae marthae Myers, 1927 -- valid -- Black-winged hatchetfish
  Carnegiella marthae schereri Fernández-Yépez, 1950 -- invalid
  Carnegiella myersi Fernández-Yépez, 1950 -- valid
  Carnegiella schereri Fernández-Yépez, 1950 -- valid
  Carnegiella strigata (Günther, 1864) -- valid -- marbled hatchetfish, marbled hatchetfish
  Carnegiella strigata strigata (Günther, 1864) -- valid
  Carpiodes Rafinesque, 1820 -- valid -- quillbacks, carpsuckers
  Carpiodes carpio (Rafinesque, 1820) -- valid -- River Carpsucker, matalote chato
  Carpiodes cyprinus (Lesueur, 1817) -- valid -- Quillback, couette, quillback carpsucker
  Carpiodes forbesi Hubbs, 1930 -- invalid
  Carpiodes velifer (Rafinesque, 1820) -- valid -- Highfin Carpsucker
  Cataetyx Günther, 1887 -- valid
  Cataetyx bruuni (Nielsen and Nybelin, 1963) -- valid
  Cataetyx laticeps Koefoed, 1927 -- valid
  Cataetyx messieri (Günther, 1878) -- valid -- hairlip brotula
  Cataetyx rubrirostris Gilbert, 1890 -- valid
  Cataetyx simus Garman, 1899 -- valid
  Cataphractops Fowler, 1915 -- invalid
  Cataphractus punctatus Bloch, 1794 -- invalid
  Catathyridium Chabanaud, 1928 -- valid
  Catathyridium jenynsii (Günther, 1862) -- valid
  Catesbya Böhlke and Smith, 1968 -- valid
  Catesbya pseudomuraena Böhlke and Smith, 1968 -- valid
  Cathorops Jordan and Gilbert, 1883 -- valid
  Cathorops spixii (Agassiz in Spix and Agassiz, 1829) -- valid -- raspfin sea catfish, bagre cuinchi
  Catla Valenciennes in Cuvier and Valenciennes, 1844 -- invalid
  Catla catla (Hamilton, 1822) -- invalid
  Catlocarpio Boulenger, 1898 -- valid
  Catlocarpio siamensis Boulenger, 1898 -- valid
  Catoprion Müller and Troschel, 1844 -- valid
  Catostomus Lesueur, 1817 -- valid -- common suckers
  Catostomus ardens Jordan and Gilbert, 1881 -- valid -- Utah Sucker
  Catostomus bernardini Girard, 1856 -- valid -- Yaqui Sucker, matalote yaqui
  Catostomus catostomus (Forster, 1773) -- valid -- Longnose Sucker, meunier rouge
  Catostomus clarkii Baird and Girard, 1854 -- invalid -- desert sucker, matalote del desierto
  Catostomus columbianus (Eigenmann and Eigenmann, 1893) -- valid -- Bridgelip Sucker, meunier de l'ouest
  Catostomus commersonii (Lacepède, 1803) -- valid -- meunier noir, White Sucker
  Catostomus discobolus Cope, 1871 -- invalid -- bluehead sucker
  Catostomus fecundus Cope and Yarrow, 1875 -- invalid -- Webug sucker
  Catostomus fumeiventris Miller, 1973 -- valid -- Owens Sucker
  Catostomus insignis Baird and Girard, 1854 -- valid -- Sonora Sucker, matalote de Sonora
  Catostomus latipinnis Baird and Girard, 1853 -- valid -- Flannelmouth Sucker, matalote boca de franela
  Catostomus luxatus (Cope, 1879) -- invalid -- Lost River sucker
  Catostomus macrocheilus Girard, 1856 -- valid -- Largescale Sucker, meunier à grandes écailles
  Catostomus microps Rutter, 1908 -- valid -- Modoc Sucker
  Catostomus occidentalis Ayres, 1854 -- valid -- Sacramento Sucker
  Catostomus platyrhynchus (Cope, 1874) -- invalid -- mountain sucker
  Catostomus plebeius Baird and Girard, 1854 -- invalid -- Rio Grande sucker, matalote del Bravo
  Catostomus rimiculus Gilbert and Snyder in Gilbert, 1898 -- valid -- Klamath Smallscale Sucker
  Catostomus santaanae (Snyder, 1908) -- invalid -- Santa Ana sucker
  Catostomus snyderi Gilbert, 1898 -- valid -- Klamath Largescale Sucker
  Catostomus syncheilus Hubbs and Schultz, 1932 -- invalid
  Catostomus tahoensis Gill and Jordan in Jordan, 1878 -- valid -- Tahoe Sucker
  Catostomus warnerensis Snyder, 1908 -- valid -- Warner Sucker
  Catulus Smith, 1838 -- invalid
  Catulus brunneus Gilbert, 1892 -- invalid
  Catulus cephalus Gilbert, 1892 -- invalid
  Catulus haeckelii Miranda-Ribeiro, 1907 -- invalid
  Catulus labiosus Waite, 1905 -- invalid
  Catulus spongiceps Gilbert, 1905 -- invalid
  Catulus torazame Tanaka, 1908 -- invalid
  Catulus uter Jordan and Gilbert in Jordan and Evermann, 1896 -- invalid
  Catulus xaniurus Gilbert, 1892 -- invalid
  Caulolatilus Gill, 1862 -- valid
  Caulolatilus cyanops Poey, 1866 -- valid -- blackline tilefish, tumba, domingo
  Caulolatilus intermedius Howell Rivero, 1936 -- valid -- anchor tilefish, tumba parda, blanquillo payaso
  Caulolatilus microps Goode and Bean, 1878 -- valid -- blueline tilefish, blanquillo lucio
  Caulophryne Goode and Bean, 1896 -- valid
  Cebidichthys Ayres, 1855 -- valid
  Cebidichthys violaceus (Girard, 1854) -- valid -- monkeyface prickleback, abrojo cara de mono
  Centracion Gray, 1831 -- invalid
  Centracion zebra Gray, 1831 -- invalid
  Centrarchops Fowler, 1923 -- valid
  Centrarchus Cuvier, 1829 -- valid -- fliers
  Centrarchus macropterus (Lacepède, 1801) -- valid -- Flier, peacock sunfish, round sunfish
  Centrarchus pomotis Baird, 1855 -- invalid
  Centridermichthys Richardson, 1845 -- invalid
  Centrina Cuvier, 1816 -- invalid
  Centrina nigra Lowe, 1834 -- invalid
  Centrina oxynotus Swainson, 1839 -- invalid
  Centrina salviani Risso, 1827 -- invalid
  Centrina vulpecula Moreau, 1881 -- invalid
  Centriscops Gill, 1862 -- valid
  Centriscops humerosus (Richardson, 1846) -- valid -- bellowfish, bellowfish
  Centriscops obliquus Waite, 1911 -- invalid -- banded snipefish, banded snipefish
  Centriscus Linnaeus, 1758 -- valid
  Centriscus scutatus Linnaeus, 1758 -- valid -- sea snipe, serrate razorfish, shrimpfish, sea snipe, serrate razorfish, shrimpfish
  Centrobranchus Fowler, 1904 -- valid
  Centrobranchus andreae (Lütken, 1892) -- valid
  Centrobranchus choerocephalus Fowler, 1904 -- valid
  Centrobranchus nigroocellatus (Günther, 1873) -- valid -- pez linterna ojinegro
  Centrolabrus Günther, 1861 -- valid
  Centrolabrus exoletus (Linnaeus, 1758) -- valid -- rock cook, smallmouthed wrasse
  Centrolabrus trutta (Lowe, 1834) -- valid
  Centrolophus Lacepède, 1802 -- valid -- black ruffs
  Centrolophus medusophagus Cocco, 1839 -- invalid -- brown ruff
  Centrolophus niger (Gmelin, 1789) -- valid -- black ruff
  Centromochlus Kner, 1858 -- valid
  Centrophorus Müller and Henle, 1837 -- valid -- gulper sharks
  Centrophorus acus Garman, 1906 -- valid -- needle dogfish
  Centrophorus crepidater Barbosa du Bocage and Brito Capello, 1864 -- invalid
  Centrophorus granulosus (Bloch and Schneider, 1801) -- valid -- gulper shark, galludo manchado
  Centrophorus harrissoni McCulloch, 1915 -- valid -- dumb gulper shark
  Centrophorus jonssonii Saemundsson, 1922 -- invalid
  Centrophorus lusitanicus Barbosa du Bocage and Brito Capello, 1864 -- valid -- lowfin gulper shark
  Centrophorus machiquensis Maul, 1955 -- valid
  Centrophorus moluccensis Bleeker, 1860 -- valid -- smallfin gulper shark
  Centrophorus niaukang Teng, 1959 -- valid -- Taiwan gulper shark
  Centrophorus plunketi Waite, 1910 -- invalid
  Centrophorus rossi Alcock, 1898 -- invalid
  Centrophorus scalpratus McCulloch, 1915 -- invalid
  Centrophorus squamosus (Bonnaterre, 1788) -- valid -- leafscale gulper shark
  Centrophorus squamulosus Günther, 1877 -- invalid
  Centrophorus steindachneri Pietschmann, 1907 -- invalid -- needle dogfish
  Centrophorus tesselatus Garman, 1906 -- invalid -- mosaic gulper shark
  Centrophorus uyato (Rafinesque, 1810) -- valid -- little gulper shark
  Centrophorus waitei Thompson, 1930 -- invalid
  Centrophryne Regan and Trewavas, 1932 -- valid
  Centrophryne spinulosa Regan and Trewavas, 1932 -- valid
  Centropogon Günther, 1860 -- valid
  Centropogon australis (White, 1790) -- valid
  Centropogon marmoratus Günther, 1862 -- valid -- marbled fortesque
  Centropomus Lacepède, 1802 -- valid -- snooks, robalos
  Centropomus ensiferus Poey, 1860 -- valid -- swordspine snook, róbalo espinoso, robalo de espolón
  Centropomus parallelus Poey, 1860 -- valid -- smallscale fat snook, fat snook, robalito, chucumite
  Centropomus pectinatus Poey, 1860 -- valid -- tarpon snook, róbalo prieto, constantino
  Centropomus undecimalis (Bloch, 1792) -- valid -- common snook, snook, róbalo común, robalo blanco
  Centropristis Cuvier, 1829 -- valid -- sea basses, black sea basses
  Centropristis fuscula (Poey, 1861) -- valid -- twospot sea bass, serrano oliváceo
  Centropristis melana Ginsburg, 1952 -- invalid
  Centropristis melanus Ginsburg, 1952 -- invalid
  Centropristis ocyurus (Jordan and Evermann, 1887) -- valid -- bank sea bass, cabrilla de banco
  Centropristis philadelphica (Linnaeus, 1758) -- valid -- rock sea bass, cabrilla serrana
  Centropristis rufus (Cuvier in Cuvier and Valenciennes, 1829) -- valid
  Centropristis striata (Linnaeus, 1758) -- valid -- black sea bass
  Centropyge Kaup, 1860 -- valid
  Centropyge argi Woods and Kanazawa, 1951 -- valid -- cherubfish, angelote pigmeo
  Centropyge bicolor (Bloch, 1787) -- valid -- black and gold angelfish
  Centropyge fisheri (Snyder, 1904) -- valid
  Centropyge flavissimus (Cuvier in Cuvier and Valenciennes, 1831) -- invalid -- yellow angelfish
  Centropyge heraldi Woods and Schultz in Schultz, Herald, Lachner, Welander and Woods, 1953 -- valid -- very drab
  Centropyge loriculus (Günther, 1874) -- invalid
  Centropyge multispinis (Playfair in Playfair and Günther, 1867) -- valid -- spiny angelfish
  Centropyge nigriocellus Woods and Schultz in Schultz, Herald, Lachner, Welander and Woods, 1953 -- invalid
  Centropyge nox (Bleeker, 1853) -- valid -- dusky angelfish
  Centropyge potteri (Jordan and Metz, 1912) -- valid -- Potter's angelfish
  Centroscyllium fabricii (Reinhardt, 1825) -- valid -- black dogfish, aiguillat noir
  Centroscyllium granulatum Günther, 1887 -- valid -- granular dogfish
  Centroscyllium kamoharai Abe, 1966 -- valid -- bareskin dogfish
  Centroscyllium nigrum Garman, 1899 -- valid -- combtooth dogfish
  Centroscyllium ornatum (Alcock, 1889) -- valid -- ornate dogfish
  Centroscyllium ritteri Jordan and Fowler, 1903 -- valid -- whitefin dogfish
  Centroscyllium ruscosum Gilbert, 1905 -- invalid
  Centroscyllium sheikoi Dolganov, 1986 -- valid
  Centroscymnus Barbosa du Bocage and Brito Capello, 1864 -- valid -- velvet dogfish
  Centroscymnus coelolepis Barbosa du Bocage and Brito Capello, 1864 -- valid -- Portuguese dogfish, Portuguese shark, tiburón portugués
  Centroscymnus crepidater (Barbosa du Bocage and Brito Capello, 1864) -- valid -- longnose velvet dogfish
  Centroscymnus cryptacanthus Regan, 1906 -- valid -- shortnose velvet dogfish
  Centroscymnus furvescens de Buen, 1960 -- invalid
  Centroscymnus macracanthus Regan, 1906 -- valid -- largespine velvet dogfish
  Centroscymnus obscurus Vaillant, 1888 -- invalid
  Centroscymnus owstonii Garman, 1906 -- invalid -- roughskin dogfish
  Centroscymnus plunketi (Waite, 1910) -- valid -- plunket shark
  Centroscymnus squamulosus (Günther, 1877) -- invalid -- velvet dogfish
  Centroselachus Garman, 1913 -- invalid
  Centrurophis Kaup, 1856 -- invalid
  Centrurophis remicaudus Kaup, 1856 -- invalid
  Cephalacanthus Lacepède, 1801 -- invalid
  Cephalocottus Gratzianov, 1907 -- invalid
  Cephalopholis Bloch and Schneider, 1801 -- valid
  Cephalopholis acanthistius (Gilbert, 1892) -- invalid
  Cephalopholis analis (Valenciennes in Cuvier and Valenciennes, 1828) -- invalid
  Cephalopholis argus Bloch and Schneider, 1801 -- valid -- peacock hind
  Cephalopholis coatesi Whitley, 1937 -- invalid
  Cephalopholis cruentata (Lacepède, 1802) -- valid -- enjambre, cherna enjambre, graysby
  Cephalopholis cyanostigma (Valenciennes in Cuvier and Valenciennes, 1828) -- valid -- bluespotted rockcod, bluespotted hind
  Cephalopholis formosa (Shaw in Shaw and Nodder, 1812) -- valid -- bluelined hind
  Cephalopholis fulva (Linnaeus, 1758) -- valid -- guatívere, cabrilla roja, coney
  Cephalopholis guttatus (Bloch, 1790) -- invalid
  Cephalopholis hemistiktos (Rüppell, 1830) -- valid -- duskyfin grouper, yellowfin hind
  Cephalopholis igarashiensis Katayama, 1957 -- valid -- garish hind
  Cephalopholis leopardus (Lacepède, 1801) -- valid -- leopard hind, red-spotted rock cod
  Cephalopholis microprion (Bleeker, 1852) -- valid -- freckled hind
  Cephalopholis miniata (Forsskċl, 1775) -- valid -- bluespot rockcod, coral hind, vermilion seabass
  Cephalopholis nigri (Günther, 1859) -- valid -- orangespotted sea perch, Niger hind
  Cephalopholis oligosticta Randall and Ben-Tuvia, 1983 -- valid -- roughcheek hind, vermilion hind
  Cephalopholis pachycentron (Valenciennes in Cuvier and Valenciennes, 1828) -- valid -- spotted-faced rockcod
  Cephalopholis panamensis (Steindachner, 1877) -- valid -- cabrilla enjambre, Panama graysby, Pacific graysby
  Cephalopholis polleni (Bleeker, 1868) -- valid -- harlequin hind
  Cephalopholis popino Walford, 1936 -- invalid -- rose coney
  Cephalopholis spiloparaea (Valenciennes in Cuvier and Valenciennes, 1828) -- valid -- strawberry hind
  Cephalopholis taeniops (Valenciennes in Cuvier and Valenciennes, 1828) -- valid -- African hind, bluespotted seabass
  Cephalopholis urodeta (Forster in Bloch and Schneider, 1801) -- valid -- darkfin hind
  Cephalopsetta Dutt & Rao, 1965 -- valid
  Cephalopsetta ventrocellatus Dutt & Rao, 1965 -- valid
  Cephaloptera Cuvier, 1816 -- invalid
  Cephaloptera japanica Müller and Henle, 1841 -- invalid
  Cephaloscyllium Gill, 1862 -- valid -- swell sharks
  Cephaloscyllium fasciatum Chan, 1966 -- valid -- reticulated swellshark
  Cephaloscyllium formosanum Teng, 1962 -- invalid
  Cephaloscyllium isabellum (Bonnaterre, 1788) -- valid -- draughtsbroad shark
  Cephaloscyllium laticeps (Duméril, 1853) -- valid -- Australian swellshark
  Cephaloscyllium laticeps nascione Whitley, 1932 -- invalid
  Cephaloscyllium nascione Whitley, 1932 -- valid -- whitefinned swellshark
  Cephaloscyllium silasi (Talwar, 1974) -- valid -- Indian swellshark
  Cephaloscyllium sufflans (Regan, 1921) -- valid -- balloon shark
  Cephaloscyllium ventriosum (Garman, 1880) -- valid -- pejegato globo, swell shark
  Cephalurus Bigelow and Schroeder, 1941 -- valid
  Cephalurus cephalus (Gilbert, 1892) -- valid -- pejegato renacuajo, lollipop cat shark, lollipop catshark
  Cepola australis Ogilby, 1899 -- valid -- australian bandfish, Australian bandfish
  Cepola krusensternii Temminck and Schlegel, 1845 -- invalid
  Ceratias Krĝyer, 1845 -- valid
  Ceratias holboelli Krĝyer, 1845 -- valid -- northern seadevil, deepsea angler, pêcheur à deux massettes
  Ceratocottus Gill, 1859 -- invalid
  Ceratocottus namiyei Jordan and Starks, 1904 -- invalid -- elf sculpin
  Ceratoglanis Myers, 1938 -- valid
  Ceratoglanis scleronema (Bleeker, 1862) -- valid
  Ceratoscopelus Günther, 1864 -- valid
  Ceratoscopelus townsendi (Eigenmann and Eigenmann, 1889) -- valid -- diente de perro, dogtooth lampfish
  Ceratostethus Myers, 1937 -- invalid
  Cerdale Jordan and Gilbert, 1882 -- valid
  Cerdale floridana Longley, 1934 -- valid -- pugjaw wormfish
  Cerdalidae -- invalid
  Cestracion Oken, 1817 -- invalid
  Cestracion francisci Girard, 1855 -- invalid
  Cestracion galeatus Günther, 1870 -- invalid
  Cestracion japonicus (Maclay and Macleay, 1884) -- invalid
  Cestracion leeuwenii Day, 1865 -- invalid
  Cestracion oceanica Garman, 1913 -- invalid
  Cestracion pantherinus Valenciennes, 1846 -- invalid
  Cestracion peruanus Evermann and Radcliffe, 1917 -- invalid
  Cestracion philippi japonicus Duméril, 1865 -- invalid
  Cestracion quoyi Fréminville, 1840 -- invalid
  Cestraeus Valenciennes in Cuvier and Valenciennes, 1836 -- valid
  Cetengraulis Günther, 1868 -- valid -- anchovetas
  Cetengraulis edentulus (Cuvier, 1829) -- valid -- bocon, bocón, anchoveta rabo amarillo, Atlantic anchoveta
  Cetengraulis mysticetus (Günther, 1867) -- valid -- anchoveta, anchoveta bocona, Pacific anchoveta
  Cetichthys Paxton, 1989 -- valid
  Cetomimoidea -- valid
  Cetomimoides Koefoed, 1955 -- valid
  Cetomimoides parri Koefoed, 1955 -- valid
  Cetomimus Goode and Bean, 1895 -- valid
  Cetomimus gilli Goode and Bean, 1895 -- invalid
  Cetomimus gillii Goode and Bean, 1895 -- valid
  Cetomimus hempeli Maul, 1969 -- valid
  Cetomimus teevani Harry, 1952 -- valid
  Cetonurus Günther, 1887 -- valid
  Cetopsis Agassiz in Spix and Agassiz, 1829 -- valid
  Cetopsogiton Eigenmann and Bean in Eigenmann, 1910 -- invalid
  Cetopsorhamdia Eigenmann and Fisher in Eigenmann, 1916 -- valid
  Cetorhinus Blainville, 1816 -- valid
  Cetorhinus maximus (Gunnerus, 1765) -- valid -- basking shark, tiburón peregrino, pez elefante, pèlerin
  Cetoscarus Smith, 1956 -- valid
  Cetoscarus bicolor (Rüppell, 1829) -- valid -- spotted parrotfish
  Cetostoma Zugmayer, 1914 -- valid
  Cetostoma regani Zugmayer, 1914 -- valid
  Chaca Gray, 1831 -- valid
  Chaca chaca (Hamilton, 1822) -- valid
  Chaenobryttus Gill, 1864 -- invalid -- warmouths
  Chaenobryttus gulosus (Cuvier in Cuvier and Valenciennes, 1829) -- invalid -- warmouth
  Chaenocephalus Regan, 1913 -- valid
  Chaenocephalus aceratus (Lönnberg, 1906) -- valid
  Chaenogaleus macrostoma (Bleeker, 1852) -- valid -- hooktooth shark
  Chaenomugil Gill, 1863 -- valid
  Chaenomugil proboscideus (Günther, 1861) -- valid -- lisa hocicona, snouted mullet
  Chaenophryne Regan, 1925 -- valid
  Chaenophryne draco Beebe, 1932 -- valid
  Chaenophryne parviconus Regan and Trewavas, 1932 -- invalid
  Chaenopsis Gill, 1865 -- valid
  Chaenopsis alepidota (Gilbert, 1890) -- valid -- orangethroat pikeblenny, tubícola lucio
  Chaenopsis limbaughi Robins and Randall, 1965 -- valid -- yellowface pikeblenny
  Chaenopsis roseola Hastings and Shipp, 1981 -- valid -- freckled pikeblenny
  Chaenotropus punctatus (Müller and Troschel, 1844) -- invalid
  Chaeropsodes Gilchrist and Thompson, 1909 -- invalid
  Chaetodipterus Lacepède, 1802 -- valid -- spadefishes
  Chaetodipterus faber (Broussonet, 1782) -- valid -- Atlantic spadefish, paguala, Atlantic Spadefish, chabela
  Chaetodipterus zonatus (Girard, 1858) -- valid -- Pacific spadefish, chambo, Pacific Spadefish
  Chaetodon abudafar Forsskċl, 1775 -- invalid
  Chaetodon argus Linnaeus, 1766 -- invalid
  Chaetodon aruanus Linnaeus, 1758 -- invalid
  Chaetodon atromaculatus Bennett, 1830 -- invalid
  Chaetodon chrysurus Desjardins, 1834 -- invalid
  Chaetodon ciliaris Linnaeus, 1758 -- invalid
  Chaetodon cordiformis Thiollière in Montrouzier, 1857 -- invalid
  Chaetodon curacao Bloch, 1787 -- invalid
  Chaetodon dayi Ahl, 1923 -- invalid
  Chaetodon dorsiocellatus Ahl, 1923 -- invalid
  Chaetodon fallax Ahl, 1923 -- invalid
  Chaetodon nigripinnis Peters, 1855 -- invalid
  Chaetodon paucifasciatus Ahl, 1923 -- valid
  Chaetodon punctatofasciatus Cuvier in Cuvier and Valenciennes, 1831 -- valid
  Chaetodon rafflesi Anonymous [Bennett], 1830 -- invalid
  Chaetodon rafflesii Anonymous [Bennett], 1830 -- valid -- latticed butterflyfish
  Chaetodon setifer Bloch, 1795 -- invalid
  Chaetodon sordidus Forsskċl, 1775 -- invalid
  Chaetodon variegatus Bonnaterre, 1788 -- invalid
  Chaetodon virescens Cuvier in Cuvier and Valenciennes, 1831 -- invalid
  Chaetodon xanthurus Bleeker, 1857 -- valid
  Chaetodontoplus Bleeker, 1876 -- valid
  Chaetodontoplus conspicillatus (Waite, 1900) -- valid -- speckled angelfish
  Chaetodontoplus duboulayi (Günther, 1867) -- valid -- scribbled angelfish
  Chaetodontoplus mesoleucus (Bloch, 1787) -- valid -- emperor butterflyfish
  Chaetostoma Tschudi, 1846 -- valid
  Chaetostoma fischeri Steindachner, 1879 -- valid -- couchu
  Chaetostomus Tschudi, 1846 -- invalid
  Chaetostomus hoplogenys Günther, 1864 -- invalid
  Chaetostomus vittatus Steindachner, 1881 -- invalid
  Chalcalburnus Berg, 1933 -- invalid
  Chalceus Cuvier, 1818 -- valid
  Chalceus angulatus Spix and Agassiz, 1829 -- invalid
  Chalceus macrolepidotus Cuvier, 1818 -- valid -- pinktailed characin, pinktailed characin
  Chalceus nigrotaeniatus Jardine in Schomburgk, 1841 -- invalid
  Chalcinopelecus argentinus Holmberg, 1891 -- invalid
  Chalinura Goode and Bean, 1883 -- invalid
  Chalinura mediterranea Giglioli, 1893 -- invalid
  Chalixodytes Schultz, 1943 -- valid
  Chalixodytes tauensis Schultz, 1943 -- valid
  Chamaigenes Eigenmann, 1910 -- invalid
  Champsodon Günther, 1867 -- valid
  Champsodon capensis Regan, 1908 -- valid -- gaper
  Champsodon vorax Günther, 1867 -- valid
  Chanda Hamilton, 1822 -- valid
  Channa argus (Cantor, 1842) -- valid -- Snakehead, Northern Snakehead, Poisson tête de serpent, Cabeza de serpiente
  Channa argus argus (Cantor, 1842) -- invalid
  Channa argus warpachowskii (Berg, 1909) -- invalid -- snakehead
  Channa asiatica (Linnaeus, 1758) -- valid -- Small snakehead, Chinese snakehead, Chinafish, snakehead
  Channa gachua (Hamilton, 1822) -- valid -- dwarf snakehead
  Channa marulius (Hamilton, 1822) -- valid -- giant snakehead, Great snakehead, Bullseye Snakehead, murrel
  Channallabes Günther, 1873 -- valid
  Channallabes apus (Günther, 1873) -- valid
  Channomuraena Richardson, 1848 -- valid
  Channomuraena vittata (Richardson, 1845) -- valid -- broadbanded moray, morena rara, morena cinturones
  Chanos Lacepède, 1803 -- valid -- milkfishes
  Chanos aldrovandi Risso in Cuvier and Valenciennes, 1836 -- invalid
  Chanos chanos (Forsskċl, 1775) -- valid -- sabalote, milkfish
  Chanos orientalis Valenciennes in Cuvier and Valenciennes, 1847 -- invalid
  Chapalichthys Meek, 1902 -- valid
  Chaparruda flavescens (Fabricius, 1779) -- invalid
  Characidium Reinhardt, 1867 -- valid
  Characidium fasciatum Reinhardt, 1867 -- valid -- banded characidium, banded characidium
  Characidium rachovii Regan, 1913 -- valid
  Characodon Günther, 1866 -- valid
  Characodon lateralis Günther, 1866 -- valid -- rainbow characodon, mexcalpique arcoiris
  Charax Scopoli, 1777 -- valid
  Charax apurensis Lucena, 1987 -- valid
  Charax cervinus Lowe, 1838 -- invalid
  Charax gibbosus (Linnaeus, 1758) -- valid
  Charax metae Eigenmann, 1922 -- valid
  Charibarbitus Smith, 1963 -- invalid
  Charibarbitus celetus Smith, 1963 -- invalid -- dainty dragonet, dainty dragonet
  Charisella Fowler, 1939 -- invalid
  Chascanopsetta Alcock, 1894 -- valid
  Chascanopsetta crumenalis (Gilbert & Cramer, 1897) -- valid
  Chascanopsetta lugubris Alcock, 1894 -- valid -- pelican flounder
  Chascanopsetta prorigera Gilbert, 1905 -- valid
  Chasmichthys Jordan and Snyder, 1901 -- invalid
  Chasmichthys dolichognathus (Hilgendorf, 1879) -- invalid
  Chasmistes Jordan, 1878 -- valid -- shortnose suckers
  Chasmistes brevirostris Cope, 1879 -- valid -- short-nose sucker, Shortnose Sucker
  Chasmistes cujus Cope, 1883 -- valid -- Cui-ui
  Chasmistes liorus Jordan, 1878 -- valid -- June Sucker
  Chasmistes luxatus Cope, 1879 -- invalid
  Chasmistes muriei Miller and Smith, 1981 -- valid -- Snake River Sucker
  Chatrabus Smith, 1949 -- valid
  Chatrabus damaranus (Barnard, 1927) -- valid -- West Coast toadfish
  Chatrabus melanurus (Barnard, 1927) -- valid -- humpback toadfish
  Chaudhuria Annandale, 1918 -- valid
  Chauliodus Bloch and Schneider, 1801 -- valid
  Chauliodus barbatus Garman, 1899 -- valid
  Chauliodus danae Regan and Trewavas, 1929 -- valid -- Dana viperfish, víbora oscura, viperfish
  Chauliodus macouni Bean, 1890 -- valid -- Pacific viperfish, víbora del Pacífico
  Chauliodus sloani Bloch and Schneider, 1801 -- valid -- Sloan's fangfish, Sloan's viperfish, víbora marina, Sloane's viperfish, chauliode très lumineux
  Chaunax Lowe, 1846 -- valid
  Chaunax pictus Lowe, 1846 -- valid -- bostezador rosado, redeye, painted anglerfish
  Chaunax stigmaeus Fowler, 1946 -- valid -- redeye gaper
  Cheilinoides Bleeker, 1851 -- invalid
  Cheilinus Lacépède, 1801 -- valid
  Cheilinus bimaculatus Valenciennes in Cuvier and Valenciennes, 1840 -- invalid -- ragged-tail wrasse
  Cheilinus chlorourus (Bloch, 1791) -- valid -- floral wrasse
  Cheilinus chlorurus (Bloch, 1791) -- invalid -- yellowdotted maori wrasse
  Cheilinus fasciatus (Bloch, 1791) -- valid
  Cheilinus oxycephalus Bleeker, 1853 -- valid -- plainfaced maori wrasse
  Cheilinus rhodochrous Günther in Playfair and Günther, 1867 -- invalid
  Cheilinus trilobatus Lacépède, 1801 -- valid
  Cheilinus undulatus Rüppell, 1835 -- valid -- tapiro
  Cheilio Lacépède, 1802 -- valid
  Cheilio inermis (Forsskċl, 1775) -- valid -- cigar wrasse
  Cheiliopsis Steindachner, 1863 -- invalid
  Cheilodactylus Lacepède, 1803 -- valid
  Cheilodactylus fasciatus Lacepède, 1803 -- valid -- bullerfish, bullerfish
  Cheilodactylus spectabilis Hutton, 1872 -- valid -- brownbanded morwong, brownbanded morwong, red moki
  Cheilodipterus Lacepède, 1801 -- valid
  Cheilodipterus arabicus (Gmelin, 1789) -- valid -- dogtooth cardinalfish
  Cheilodipterus caninus Smith, 1949 -- invalid -- dogtooth cardinal, dogtooth cardinal
  Cheilodipterus lachneri Klausewitz, 1959 -- valid -- arrowtooth cardinal, arrowtooth cardinal
  Cheilodipterus macrodon (Lacepède, 1802) -- valid -- bigtooth percelle
  Cheilodipterus quinquelineatus Cuvier in Cuvier and Valenciennes, 1828 -- valid -- fivestriped percelle, fivestriped percelle
  Cheilolabrus Alleyne and Macleay, 1877 -- invalid
  Cheilopogon Lowe, 1841 -- valid
  Cheiloprion Weber, 1913 -- valid
  Cheiloprion labiatus (Day, 1877) -- valid -- largelipped puller
  Cheilotrema Tschudi, 1846 -- valid
  Cheilotrema saturnum (Girard, 1858) -- valid -- black croaker, corvinata negra
  Cheimarrichthys Haast, 1874 -- valid
  Cheimarrichthys fosteri Haast, 1874 -- valid -- shark bully, torrent fish
  Cheirodon Girard, 1855 -- valid
  Cheirodon axelrodi Schultz, 1956 -- invalid
  Cheirodon parahybae Eigenmann, 1915 -- valid
  Cheirodon troemneri (Fowler, 1942) -- invalid
  Chela Hamilton, 1822 -- valid
  Chela laubuca (Hamilton, 1822) -- valid -- Indian glass barb
  Chelidonichthys Kaup, 1873 -- valid -- smallscaled gurnards
  Chelidonichthys kumu (Cuvier, 1829) -- valid -- bluefin searobin, red gurnard
  Chelidoperca Boulenger, 1895 -- valid
  Chelmo Cloquet, 1817 -- invalid
  Chelmon muelleri Klunzinger, 1879 -- valid
  Chelmon rostratus (Linnaeus, 1758) -- valid -- longnosed butterflyfish
  Chelon Artedi in Röse, 1793 -- valid
  Chelon crenilabis (Forsskċl, 1775) -- invalid
  Chelon labrosus (Risso, 1827) -- valid -- thicklip mullet, thicklipped mullet
  Chelonodon Müller, 1841 -- invalid
  Chelonodon laticeps Smith, 1948 -- invalid -- bluespotted blaasop
  Chelonodon patoca (Hamilton, 1822) -- invalid -- marbled toado
  Chelonodon pulchellus (Smith, 1958) -- invalid
  Chelonodontops Smith, 1958 -- valid
  Chelonodontops pulchellus Smith, 1958 -- invalid -- blaasop beauty
  Cheroscorpaena Mees, 1964 -- valid
  Cherublemma Trotter, 1926 -- valid
  Cherublemma emmelas (Gilbert, 1890) -- valid
  Chesnonia Iredale and Whitley, 1969 -- valid
  Chiasmodon Johnson, 1864 -- valid
  Chiasmodon niger Johnson, 1864 -- valid -- black swallower
  Chilara taylori (Girard, 1858) -- valid -- spotted cusk-eel, congriperla moteada
  Chilatherina Regan, 1914 -- valid
  Chiloconger Myers and Wade, 1941 -- valid
  Chiloconger labiatus Myers and Wade, 1941 -- invalid
  Chilodus Müller and Troschel, 1844 -- valid
  Chilodus punctatus Müller and Troschel, 1844 -- valid -- spotted headstander, spotted headstander
  Chiloglanis Peters, 1868 -- valid
  Chiloglanis deckenii Peters, 1868 -- valid
  Chilomycterus Brisout de Barneville, 1846 -- valid -- burrfishes, spiny boxfishes
  Chilomycterus antennatus (Cuvier, 1816) -- valid -- bridled burrfish, guanábana manchada, Bridled Burrfish, pez erizo de riendas
  Chilomycterus antillarum Jordan & Rutter, 1897 -- valid -- web burrfish, guanábana antillana, guanábana caribeña, Web Burrfish
  Chilomycterus atringa (Linnaeus, 1758) -- invalid -- guanábana, spotted burrfish
  Chilomycterus reticulatus (Linnaeus, 1758) -- valid -- pez erizo enano, spotfin burrfish, Spotfin Burrfish
  Chilomycterus schoepfii (Walbaum, 1792) -- valid -- guanába rayada, guanábana rayada, burrfish, porcupinefish, striped burrfish, Striped Burrfish
  Chilorhinus platyrhynchus (Norman, 1922) -- valid
  Chilorhinus suensoni Lütken, 1852 -- invalid -- anguililla bembona
  Chilorhinus vermiformis Peters, 1866 -- invalid -- shortfinned worm eel
  Chiloscyllium arabicum Gubanov in Gubanov and Shleib, 1980 -- valid -- Arabian carpetshark, Arabian carpet shark, bamboa arábiga, requin-chabot camot
  Chiloscyllium caeruleopunctatum Pellegrin, 1914 -- invalid -- bluespotted bambooshark
  Chiloscyllium colax (Meuschen, 1781) -- invalid
  Chiloscyllium griseum Müller and Henle, 1838 -- valid -- grey bambooshark
  Chiloscyllium indicum (Gmelin, 1789) -- valid -- slender bambooshark, bamboa elegante, requin-chabot élégant, slender bamboo shark
  Chiloscyllium plagiosum (Anonymous [Bennett], 1830) -- valid -- bamboa punteada, requin-chabot á taches blanches, whitespotted bamboo shark, whitespotted bambooshark
  Chiloscyllium plagiosum interruptum Bleeker, 1852 -- invalid
  Chiloscyllium punctatum Müller and Henle, 1838 -- valid -- brownbanded bambooshark
  Chimaera Linnaeus, 1758 -- valid
  Chimaera cubana Howell Rivero, 1936 -- valid -- Cuban chimaera, chimaera, quimera
  Chimaera jordani Tanaka, 1905 -- valid
  Chimaera monstrosa Linnaeus, 1758 -- valid -- rabbitfish, ratfish
  Chimaera owstoni Tanaka, 1905 -- valid
  Chimaera phantasma Jordan and Schneider, 1900 -- valid
  Chimaera pseudomonstrosa Fang and Wang, 1932 -- valid
  Chirocentridae -- valid -- wolf herrings, wolf-herrings
  Chirocentrodon Günther, 1868 -- valid -- dogtooth herrings
  Chirocentrodon bleekerianus (Poey, 1867) -- valid -- anchoa pelada, dogtooth herring
  Chirocentrus Cuvier, 1816 -- valid
  Chirocentrus dorab (Forsskċl, 1775) -- valid -- wolf herring, Dorab wolf herring, arencón dorab, Dorab wolf-herring, chirocentre dorab
  Chirocentrus nudus Swainson, 1839 -- valid -- whitefin wolf herring, smooth wolf herring, chirocentre sabre, whitefin wolf-herring, arencón de aleta blanca
  Chirodon alburnus Günther, 1869 -- invalid
  Chirolophis Swainson, 1839 -- valid -- warbonnets
  Chirolophis ascanii (Walbaum, 1792) -- valid -- Atlantic warbonnet, toupet marbré
  Chirolophis decoratus (Jordan and Snyder, 1902) -- valid -- decorated warbonnet
  Chirolophis nugator (Jordan and Williams in Jordan and Starks, 1895) -- valid -- mosshead warbonnet
  Chirolophis polyactocephalus (Pallas, 1814) -- invalid -- decorated warbonnet, decorated warbonnet
  Chirolophis tarsodes (Jordan and Snyder, 1902) -- valid -- matcheek warbonnet
  Chirolophius Regan, 1903 -- invalid
  Chirolophius kempi Norman, 1935 -- invalid -- monkfish
  Chirostoma Swainson, 1839 -- valid
  Chirostoma jordani Woolman, 1894 -- valid -- charal, charal, mesa silverside
  Chirostomias Regan and Trewavas, 1930 -- valid
  Chitala Fowler, 1934 -- valid
  Chitala blanci (d'Aubenton, 1965) -- valid
  Chitala chitala (Hamilton, 1822) -- valid -- featherback
  Chitala ornata (Gray, 1831) -- valid -- clown knifefish
  Chitonotus Lockington, 1879 -- valid
  Chitonotus pugetensis (Steindachner, 1876) -- valid -- roughback sculpin, charrasco espalda rugosa
  Chlamydoselachus Garman, 1884 -- valid
  Chlamydoselachus anguineus Garman, 1884 -- valid -- frill shark, frilled shark, tiburón anguila
  Chlidichthys Smith, 1953 -- valid
  Chlopsis Rafinesque, 1810 -- valid
  Chlopsis apterus (Beebe and Tee-van, 1938) -- valid -- stripesnout false moray, morena falsa hocico rayado
  Chlopsis bicollaris (Myers and Wade, 1941) -- valid
  Chlopsis bicolor Rafinesque, 1810 -- valid -- bicolor eel
  Chlopsis dentatus (Seale, 1917) -- valid -- anguililla moteada, mottled false moray, morena falsa dientona
  Chlopsis fierasfer Jordan and Snyder, 1901 -- invalid -- blacktail duckbill
  Chlopsis kazuko Lavenberg, 1988 -- valid
  Chlopsis olokun (Robins and Robins, 1966) -- valid
  Chlorurus Swainson, 1839 -- valid
  Chlorurus japanensis (Bloch, 1789) -- valid
  Chlorurus sordidus (Forsskċl, 1775) -- valid -- uhu
  Choerodon Bleeker, 1849 -- valid -- tuskfishes
  Choerodon anchorago (Bloch, 1791) -- valid -- orangedotted tuskfish
  Choerodon cyanodus (Richardson, 1843) -- valid -- bluetoothed tuskfish
  Choerodon schoenleinii (Valenciennes in Cuvier and Valenciennes, 1839) -- valid -- blackspot tuskfish
  Choerodon venustus (De Vis, 1884) -- valid -- pinksided tuskfish, Venus tuskfish
  Choerodon vitta Ogilby, 1910 -- valid -- striped tuskfish
  Choerodonoides Kamohara, 1958 -- invalid
  Choeroichthys Kaup, 1856 -- valid
  Choeroichthys brachysoma (Bleeker, 1855) -- valid -- dotted pipefish, dotted pipefish
  Choeroichthys sculptus (Günther, 1870) -- valid -- sculptured pipefish, sculptured pipefish
  Choeroichthys suillus Whitley, 1951 -- valid -- pig pipefish, pig pipefish
  Choerojulis Gill, 1862 -- invalid
  Chologaster Agassiz, 1853 -- valid -- swampfishes
  Chologaster avitus Jordan and Jenkins in Jordan, 1889 -- invalid
  Chologaster cornuta Agassiz, 1853 -- valid -- swampfish
  Chondrostoma Agassiz, 1832 -- valid
  Chondrostoma nasus (Linnaeus, 1758) -- valid -- nase, common nase
  Chonophorus Poey, 1860 -- invalid
  Chonophorus melanocephalus (Bleeker, 1849) -- invalid -- batog, batog
  Chonophorus stamineus (Eydoux and Souleyet, 1850) -- invalid
  Chopinopsetta Whitley, 1931 -- invalid
  Choridactylus Richardson, 1848 -- valid
  Choridactylus multibarbus Richardson, 1848 -- valid -- orangebanded goblinfish
  Choridactylus natalensis (Gilchrist, 1902) -- valid -- threestick stingfish
  Chriodorus Goode and Bean, 1882 -- valid -- hardheads
  Chriodorus atherinoides Goode and Bean, 1882 -- valid -- hardhead halfbeak, pajarito cabezidura, pejerrey
  Chriolepis Gilbert, 1892 -- valid
  Chriolepis fisheri Herre, 1942 -- invalid -- translucent goby, translucent goby
  Chriolepis minutillus Gilbert, 1892 -- valid -- gobio conchalero, rubble goby
  Chromidotilapia Boulenger, 1898 -- valid
  Chromidotilapia finleyi Trewavas, 1974 -- invalid
  Chromidotilapia guntheri (Sauvage, 1882) -- valid -- Gunther's cichlid
  Chromis acares Randall and Swerdloff, 1973 -- valid
  Chromis agilis Smith, 1960 -- valid -- rusty chromis
  Chromis alta Greenfield and Woods, 1980 -- valid -- castañeta alta, silverstripe chromis
  Chromis atrilobata Gill, 1862 -- valid -- castañeta cola de tijera, scissortail chromis, Castañeta
  Chromis atripectoralis Welander and Schultz, 1951 -- valid -- blackfin chromis
  Chromis bitaeniatus Fowler and Bean, 1928 -- invalid -- banded puller
  Chromis burtoni Günther, 1894 -- invalid
  Chromis caeruleus (Cuvier in Cuvier and Valenciennes, 1830) -- invalid -- blue puller, blue-green chromis, green chromis
  Chromis chromis (Linnaeus, 1758) -- valid -- damselfish
  Chromis cinerascens (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- puller
  Chromis crusma (Valenciennes in Cuvier and Valenciennes, 1833) -- valid
  Chromis cyanea (Poey, 1860) -- valid -- blue chromis, cromis azul, castañeta azul
  Chromis dasygenys (Fowler, 1935) -- valid -- bluespotted damsel
  Chromis enchrysura Jordan and Gilbert, 1882 -- valid -- yellowtail reeffish, castañeta coliamarilla
  Chromis hanui Randall and Swerdloff, 1973 -- valid
  Chromis insolata (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- sunshinefish, cromis sol, castañeta sol
  Chromis intercrusma Evermann and Radcliff, 1917 -- valid
  Chromis leucura Gilbert, 1905 -- valid -- whitetail chromis
  Chromis limbaughi Greenfield and Woods, 1980 -- valid -- blue-and-yellow chromis, castañeta mexicana
  Chromis marginata (Castelnau, 1855) -- invalid -- brown chromis
  Chromis meridiana Greenfield and Woods, 1980 -- valid
  Chromis nigrura Smith, 1960 -- valid
  Chromis notatus (Temminck and Schlegel, 1843) -- invalid -- whitesaddled reeffish
  Chromis opercularis (Günther in Playfair and Günther, 1867) -- valid -- doublebar reeffish
  Chromis ovalis (Steindachner, 1900) -- valid
  Chromis punctipinnis (Cooper, 1863) -- valid -- blacksmith, castañeta herrera
  Chromis rivulata Günther, 1860 -- invalid
  Chromis scotti Emery, 1968 -- valid -- purple reeffish, cromis púrpura, castañeta púrpura
  Chromis simulans Smith, 1960 -- invalid -- darkbar chromis
  Chromis struhsakeri Randall and Swerdloff, 1973 -- valid
  Chromis ternatensis (Bleeker, 1856) -- valid -- golden chromis, Ternate chromis
  Chromis vanderbilti (Fowler, 1941) -- valid
  Chromis verater Jordan and Metz, 1912 -- valid
  Chromis weberi Fowler and Bean, 1928 -- valid
  Chromogobius de Buen, 1930 -- valid
  Chromogobius quadrivittatus (Steindachner, 1863) -- valid -- banded goby, banded goby
  Chromogobius zebratus (Kolombatovic, 1891) -- valid -- Kolombatovic's goby
  Chrysichthys Bleeker, 1858 -- valid
  Chrysichthys bocagii Boulenger, 1910 -- invalid
  Chrysiptera Swainson, 1839 -- valid
  Chrysiptera annulata (Peters, 1855) -- valid -- footballer
  Chrysiptera cyanea (Quoy and Gaimard, 1825) -- valid -- blue devil, cornflower sargeantmajor, sapphire devil
  Chrysiptera glauca (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- sombre damselfish
  Chrysiptera leucopoma (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- orange devil, surge damselfish
  Chrysophrys Quoy and Gaimard, 1824 -- valid
  Chrysophrys auratus (Forster in Bloch and Schneider, 1801) -- valid
  Chrysophrys major Temminck and Schlegel, 1843 -- invalid
  Cichla Bloch and Schneider, 1801 -- valid -- eyetail cichlids
  Cichla ocellaris Bloch and Schneider, 1801 -- valid -- peacock cichlid, butterfly peacock bass
  Cichla temensis Humboldt in Humboldt and Valenciennes, 1821 -- valid -- speckled pavon
  Cichlasoma Swainson, 1839 -- valid -- American cichlids
  Cichlasoma aureum (Günther, 1862) -- invalid -- golden cichlid, golden cichlid
  Cichlasoma beani (Jordan, 1889) -- valid -- green guapote, mojarra de Sinaloa, Sinaloa cichlid
  Cichlasoma biocellatum Regan, 1909 -- invalid -- Jack Dempsey
  Cichlasoma citrinellum (Günther, 1864) -- invalid -- midas cichlid
  Cichlasoma cyanoguttatum (Baird and Girard, 1854) -- invalid -- Rio Grande cichlid, Rio Grande perch, mojarra del norte
  Cichlasoma facetum (Jenyns, 1842) -- valid -- chanchito, chanchito
  Ciliata Couch, 1832 -- valid
  Cirrhigaleus barbifer Tanaka, 1912 -- valid -- Mandarin dogfish
  Cirrhilabrichthys Klausewitz, 1976 -- invalid
  Cirrhilabrus Temminck and Schlegel, 1845 -- valid
  Cirrhimuraena Kaup, 1856 -- valid
  Cirrhimuraena chinensis Kaup, 1856 -- valid
  Cirrhimuraena macgregori (Jenkins, 1903) -- invalid
  Cirrhimuraena paucidens Herre and Myers, 1931 -- valid
  Cirrhimuraena playfairii (Günther, 1870) -- valid
  Cirrhimuraena tapeinopterus Bleeker, 1863 -- invalid
  Cirrhinus Oken, 1817 -- valid
  Cirrhinus mrigala (Hamilton, 1822) -- valid
  Cirrhoscyllium expolitum Smith and Radcliffe in Smith, 1913 -- valid -- barbelthroat carpetshark, barbelthroat carpet shark, requin-carpette á moustache
  Cirrhoscyllium formosanum Teng, 1959 -- valid -- Taiwan saddled carpetshark
  Cirrhoscyllium japonicum Kamohara, 1943 -- valid -- saddle carpetshark
  Citharichthys Bleeker, 1862 -- valid -- sanddabs, whiffs
  Citharichthys amblybregmatus Gutherz & Blackman, 1970 -- valid
  Citharichthys arctifrons Goode, 1880 -- valid -- Gulf Stream flounder, lenguado golfino, Gulf Stream Flounder, plie du gulf stream
  Citharichthys arenaceus Evermann & Marsh, 1900 -- valid -- sand whiff, lenguado arenero, Sand Whiff
  Citharichthys cornutus (Günther, 1880) -- valid -- horned whiff, lenguado cornudo, Horned Whiff
  Citharichthys dinoceros Goode & Bean, 1886 -- valid -- lenguado espinoso, spined whiff, Spined Whiff
  Citharichthys fragilis Gilbert, 1890 -- valid -- Gulf sanddab, lenguado flaco, Gulf Sanddab
  Citharichthys gymnorhinus Gutherz & Blackman, 1970 -- valid -- anglefin whiff, Anglefin Whiff
  Citharichthys macrops Dresel, 1885 -- valid -- spotted whiff, lenguado manchado, Spotted Whiff
  Citharichthys sordidus (Girard, 1854) -- valid -- Pacific sanddab, lenguado moteado, limande sordide, Pacific Sanddab
  Citharichthys spilopterus Günther, 1862 -- valid -- bay whiff, lenguado pardo, Bay Whiff
  Citharichthys stigmaeus Jordan & Gilbert, 1882 -- valid -- speckled sanddab, lenguado pecoso, limande tachetée, Speckled Sanddab
  Citharichthys xanthostigma Gilbert, 1890 -- valid -- longfin sanddab, lenguado alón, Longfin Sanddab
  Citharidium Boulenger, 1902 -- valid
  Citharidium ansorgii Boulenger, 1902 -- valid
  Citharinops distichodoides (Pellegrin, 1919) -- valid
  Citharinus Cuvier, 1816 -- valid
  Citharinus gibbosus Boulenger, 1899 -- valid
  Citharoedus Kaup, 1860 -- invalid
  Citharoides Hubbs, 1915 -- valid
  Citharoides macrolepidotus Hubbs, 1915 -- valid
  Citharoides macrolepis (Gilchrist, 1904) -- valid -- largescale flatfish
  Clariallabes Boulenger, 1900 -- valid
  Clariallabes petricola Greenwood, 1956 -- valid
  Clarias Scopoli, 1777 -- valid -- walking catfishes
  Clarias batrachus (Linnaeus, 1758) -- valid -- clarias catfish, walking catfish
  Clarias brachysoma Günther, 1864 -- valid
  Clarias fuscus (Lacepède, 1803) -- valid -- whitespotted clarias, whitespotted freshwater catfish
  Clarias gariepinus (Burchell, 1822) -- valid
  Clarias lazera Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Clarias macrocephalus Günther, 1864 -- valid -- Nigerian clarias
  Clarias ngamensis Castelnau, 1861 -- valid
  Clarias teysmanni Bleeker, 1857 -- invalid
  Clarotes Kner, 1855 -- valid
  Clarotes bidorsalis Pellegrin, 1938 -- valid
  Cleisthenes Jordan & Starks, 1904 -- valid
  Cleisthenes herzensteini (Schmidt, 1904) -- valid -- pointhead flounder
  Cleisthenes pinetorum Jordan & Starks, 1904 -- valid -- sohachi flounder
  Cleithracara Kullander and Nijssen, 1989 -- valid
  Cleithracara maronii (Steindachner, 1881) -- valid -- keyhole cichlid
  Clidoderma Bleeker, 1862 -- valid
  Clidoderma asperrimum (Temminck & Schlegel, 1846) -- valid -- roughscale sole, roughscale flounder
  Clinocottus Gill, 1861 -- valid -- sharpnose sculpins
  Clinostomus Girard, 1856 -- valid -- redside daces
  Clinostomus elongatus (Kirtland, 1840) -- valid -- méné long, Redside Dace
  Clupanodon Lacepède, 1803 -- valid
  Clupanodon punctatus (Temminck and Schlegel, 1846) -- invalid -- dotted gizzard shad
  Clupanodon thrissa (Linnaeus, 1758) -- valid -- Chinese gizzard shad, alose à museau court, alosa chata
  Clupea Linnaeus, 1758 -- valid
  Clupea alepidota Hermann, 1804 -- invalid
  Clupea alosa Linnaeus, 1758 -- invalid
  Clupea arabica Ehrenberg in Cuvier and Valenciennes, 1847 -- invalid
  Clupea bipunctata Ehrenberg in Cuvier and Valenciennes, 1847 -- invalid
  Clupea brunnichii Bloch and Schneider, 1801 -- invalid
  Clupea chrysoptera Lacepède, 1803 -- invalid
  Clupea delicatula Bennett, 1832 -- invalid
  Clupea encrasicolus Linnaeus, 1758 -- invalid
  Clupea exile Kishinouye, 1911 -- invalid
  Clupea gigantea Shaw, 1804 -- invalid
  Clupea harengus Linnaeus, 1758 -- valid -- Baltic herring, herring, hareng atlantique, Atlantic herring
  Clupea harengus harengus Linnaeus, 1758 -- valid -- Atlantic herring, herring
  Clupea harengus marisalbi Berg, 1923 -- invalid
  Clupea harengus membras Linnaeus, 1761 -- valid -- Baltic herring
  Clupea harengus pallasii Valenciennes in Cuvier and Valenciennes, 1847 -- invalid -- Pacific herring
  Clupea harengus suworowi Rabinerson, 1927 -- valid
  Clupea hepsetoides Walbaum, 1792 -- invalid
  Clupea hepsetus Martens, 1824 -- invalid
  Clupea kowal Rüppell, 1837 -- invalid
  Clupea lodna Olafsen, 1772 -- invalid
  Clupea manulensis Marion de Proce, 1822 -- invalid
  Clupea mauritiana Bennett, 1833 -- invalid
  Clupea ogura Kishinouye, 1911 -- invalid
  Clupea ovalis Anonymous [Bennett], 1830 -- invalid
  Clupea pallasii Valenciennes in Cuvier and Valenciennes, 1847 -- valid -- arenque del Pacífico, Pacific herring
  Clupea pallasii marisalbi Berg, 1923 -- invalid
  Clupea sadina Mitchill, 1814 -- invalid
  Clupea sardina Cuvier, 1829 -- invalid
  Clupea sardinacaroli Curtiss, 1938 -- invalid
  Clupea schaleh Forsskċl, 1775 -- invalid
  Clupea sicula Swainson, 1839 -- invalid
  Clupea sima Linnaeus, 1758 -- invalid
  Clupea sprattus Linnaeus, 1758 -- invalid
  Clupea sternicla Linnaeus, 1758 -- invalid
  Clupea thrissoides Bloch and Schneider, 1801 -- invalid
  Clupea tropica Linnaeus, 1758 -- invalid
  Clupeichthys Bleeker, 1855 -- valid
  Clupeichthys aesarnensis Wongratana, 1983 -- valid -- Thai river sprat
  Clupeichthys bleekeri (Hardenberg, 1936) -- valid -- Kapuas river sprat
  Clupeichthys goniognathus Bleeker, 1855 -- valid -- Sumatran river sprat
  Clupeichthys perakensis (Herre, 1936) -- valid -- Perak River sprat
  Clupeoides Bleeker, 1851 -- valid
  Clupeoides borneensis Bleeker, 1851 -- valid -- Borneo river sprat
  Clupeoides hueensis Chevey, 1932 -- invalid
  Clupeoides hypselosoma Bleeker, 1866 -- valid -- Kalimantan river sprat
  Clupeoides papuensis (Ramsay and Ogilby, 1886) -- valid -- Papuan river sprat
  Clupeoides venulosus Weber and de Beaufort, 1912 -- valid -- west Irian river sprat
  Clupeonella Kessler, 1877 -- valid
  Clupeonella abrau (Maliatsky, 1930) -- valid -- Abrau sprat
  Clupeonella cultriventris (Nordmann, 1840) -- valid -- Black Sea sprat
  Clupeonella delicatula Nordmann, 1840 -- invalid -- common kilka
  Clupeonella engrauliformis (Borodin, 1904) -- valid -- anchovy sprat
  Clupeonella grimmi Kessler, 1877 -- valid -- southern Caspian sprat
  Clupeonella suworowi Berg, 1913 -- invalid
  Clupisoma Swainson, 1838 -- valid
  Clupisoma bastari Datta and Karmakar, 1980 -- valid
  Clupisudis Swainson, 1839 -- invalid
  Clupisudis niloticus (Cuvier, 1829) -- invalid
  Clypeocottus Ayres, 1854 -- invalid
  Cnesterodon Garman, 1895 -- valid
  Cnidoglanis Günther, 1864 -- valid
  Cnidoglanis microcephalus Günther, 1864 -- invalid
  Cnidoglanis microceps (Richardson, 1845) -- invalid
  Cobitis Linnaeus, 1758 -- valid
  Cobitis anableps Linnaeus, 1758 -- invalid
  Cobitis aurata De Filippi, 1863 -- invalid
  Cobitis battalgili Bacescu, 1962 -- valid
  Cobitis biwae Jordan and Snyder, 1901 -- valid
  Cobitis taenia Linnaeus, 1758 -- valid -- spine loach, weatherfish
  Coccotropsis Barnard, 1927 -- valid
  Cochliodon Heckel in Kner, 1854 -- invalid
  Cociella Whitley, 1940 -- valid
  Coelophrys Brauer, 1902 -- valid
  Coilia Gray, 1830 -- valid
  Coilia borneensis Bleeker, 1852 -- valid -- Bornean grenadier anchovy
  Coilia coomansi Hardenberg, 1934 -- valid -- Cooman's grenadier anchovy
  Coilia dussumieri Valenciennes in Cuvier and Valenciennes, 1848 -- valid -- goldspotted grenadier anchovy, alices taches d'or, gold spotted grenadier anchovy, anchoa granadera dorada, gold-spotted grenadier anchovy
  Coilia grayii Richardson, 1845 -- valid -- Gray's grenadier anchovy
  Coilia lindmani Bleeker, 1858 -- valid -- Lindman's grenadier anchovy
  Coilia macrognathos Bleeker, 1852 -- valid -- longjaw grenadier anchovy
  Coilia mystus (Linnaeus, 1758) -- valid -- Osbeck's grenadier anchovy
  Coilia nasus Temminck and Schlegel, 1846 -- valid -- Japanese grenadier anchovy
  Coilia neglecta Whitehead, 1967 -- valid -- neglected grenadier anchovy, alice franche, anchoa granadera plebeya
  Coilia polyfilis Volz, 1903 -- invalid
  Coilia ramcarati (Hamilton, 1822) -- valid -- Ramcarat grenadier anchovy
  Coilia rebentischii Bleeker, 1858 -- valid -- many-fingered grenadier anchovy
  Coilia rendahli Jordan and Seale, 1926 -- invalid
  Coilia reynaldi Valenciennes in Cuvier and Valenciennes, 1848 -- valid -- Reynald's grenadier anchovy
  Coleosmaris Norman, 1931 -- invalid
  Coleotropis Myers and Wade, 1942 -- invalid
  Colistium Norman, 1926 -- valid
  Colistium guntheri (Hutton, 1873) -- valid -- New Zealand brill
  Coloconger Alcock, 1889 -- valid
  Coloconger cadenati Kanazawa, 1961 -- valid
  Coloconger japonicus Machida in Okamura and Kitajima, 1984 -- valid
  Coloconger meadi Kanazawa, 1957 -- valid
  Coloconger raniceps Alcock, 1889 -- valid
  Coloconger scholesi Chan, 1967 -- valid
  Colocongridae -- valid -- colocongrids
  Cololabis Gill, 1896 -- valid
  Colossoma Eigenmann and Kennedy, 1903 -- valid
  Colossoma macropomum (Cuvier, 1816) -- valid -- tambaquí, blackfin pacu, cachama
  Colossoma nigripinnis (Cope, 1878) -- invalid
  Colpichthys Hubbs, 1918 -- valid
  Comephorus Lacepède, 1800 -- valid
  Conger Bosc, 1817 -- valid
  Conger cinereus Rüppell, 1830 -- valid -- longfin conger, congre oiro, congrio de aleta larga
  Conger cinereus cinereus Rüppell, 1830 -- valid
  Conger cinereus marginatus Valenciennes in Eydoux and Souleyet, 1850 -- valid
  Conger conger (Linnaeus, 1758) -- valid -- conger eel, sea eel
  Conger gracilior (Ginsburg, 1951) -- invalid
  Conger harringtonensis (Mowbray, 1931) -- invalid -- Bermuda conger eel
  Conger japonicus Bleeker, 1879 -- valid -- beach conger, swarthy conger
  Conger labiata Castelnau, 1879 -- invalid
  Conger macrops Günther, 1870 -- invalid
  Conger marginalis Valenciennes in Eydoux and Souleyet, 1850 -- invalid -- puhi uha, white eel
  Conger marginatus Valenciennes in Eydoux and Souleyet, 1850 -- invalid
  Conger oceanicus (Mitchill, 1818) -- valid -- conger eel
  Conger oligoporus Kanazawa, 1958 -- valid
  Conger triporiceps Kanazawa, 1958 -- valid -- manytooth conger, congrio dentudo
  Conger verreauxi Kaup, 1856 -- valid -- conger eel, koiro
  Conger wilsoni (Bloch and Schneider, 1801) -- invalid -- Cape conger
  Congiopodus Perry, 1811 -- valid
  Congocharax Matthes, 1964 -- valid
  Congocharax gossei Poll and Lambert, 1964 -- valid
  Congopanchax Poll, 1971 -- invalid
  Congothrissa Poll, 1964 -- valid
  Congothrissa gossei Poll, 1964 -- valid -- smoothbelly pellonuline
  Congrammus Fowler, 1906 -- invalid
  Congrammus moorei Fowler, 1906 -- invalid
  Congresox Gill, 1890 -- valid
  Congresox talabon (Cuvier, 1829) -- valid -- yellow pike conger, morénésoce jaune, morenocio amarillo
  Congresox talabonoides (Bleeker, 1853) -- valid -- Indian putyekanipa, Indian pike conger, morenocio indio, morénésoce indien
  Congrina aequoria (Gilbert and Cramer, 1897) -- invalid
  Congrina gracilior Ginsburg, 1951 -- invalid -- whiptail conger
  Congrina macrosoma Ginsburg, 1951 -- invalid
  Congrogadoides Borodin, 1933 -- invalid
  Congrogadoides amplimaculatus Winterbottom, 1980 -- invalid
  Congrogadus Günther, 1862 -- valid
  Congrogadus amplimaculatus (Winterbottom, 1980) -- valid
  Conniella Allen, 1983 -- valid
  Conocara Goode and Bean, 1896 -- valid
  Conodon Cuvier in Cuvier and Valenciennes, 1830 -- valid
  Cookeolus Fowler, 1928 -- valid
  Copeina Fowler, 1906 -- valid
  Copeina argyrops (Cope, 1878) -- invalid
  Copeina arnoldi Regan, 1912 -- invalid
  Copeina callolepis Regan, 1912 -- invalid -- beautiful-scaled characin, beautiful-scaled characin
  Copeina guttata (Steindachner, 1876) -- valid -- red spotted characin, redspotted copeina, red spotted characin, redspotted copeina
  Copeina metae Eigenmann, 1914 -- invalid
  Copella Myers, 1956 -- valid
  Copella metae (Eigenmann, 1914) -- valid
  Copella nattereri (Steindachner, 1876) -- valid -- beautiful scaled characin, beautiful scaled characin
  Copella nigrofasciata (Meinken, 1952) -- valid -- blackbanded pyrrhulina, blackbanded pyrrhulina
  Copidoglanis Günther, 1864 -- invalid
  Copionodon de Pinna, 1992 -- valid
  Coranthus Smith, 1961 -- valid
  Coreius Jordan and Starks, 1905 -- valid
  Coreius guichenoti (Sauvage and Dabry de Thiersant, 1874) -- valid
  Coreius septentrionalis (Nichols, 1925) -- valid
  Coreobagrus brevicorpus Mori, 1936 -- invalid
  Coreobagrus ichikawai Okada and Kubota, 1957 -- invalid -- nekogigi
  Corica Hamilton, 1822 -- valid
  Corica laciniata Fowler, 1935 -- valid -- Bangkok river sprat
  Corica soborna Hamilton, 1822 -- valid -- Ganges river sprat
  Coricus Cuvier, 1814 -- invalid
  Coris Lacépède, 1801 -- valid -- rainbow wrasses
  Coris eydouxii (Valenciennes in Cuvier and Valenciennes, 1839) -- invalid
  Corycus Cuvier, 1814 -- invalid
  Corydoras Lacepède, 1803 -- valid
  Corydoras acutus Cope, 1872 -- valid -- blacktop catfish
  Corydoras aeneus (Gill, 1858) -- valid -- bronze corydoras
  Corydoras agassizii Steindachner, 1876 -- valid -- Agassiz's corydoras
  Corydoras axelrodi Rössel, 1962 -- valid
  Corydoras blochi Nijssen, 1971 -- valid
  Corydoras blochi blochi Nijssen, 1971 -- invalid
  Corydoras blochi vittatus Nijssen, 1971 -- invalid
  Corydoras bondi Gosline, 1940 -- valid
  Corydoras elegans Steindachner, 1876 -- valid
  Corydoras ellisae Gosline, 1940 -- valid
  Corydoras eques Steindachner, 1876 -- valid
  Corydoras evelynae Rössel, 1963 -- valid
  Corydoras garbei Ihering, 1911 -- valid
  Corydoras gracilis Nijssen and Isbrücker, 1976 -- valid
  Corydoras griseus Holly, 1940 -- valid
  Corydoras habrosus Weitzman, 1960 -- valid
  Corydoras hastatus Eigenmann and Eigenmann, 1888 -- valid -- dwarf corydoras, micro catfish
  Corydoras julii Steindachner, 1906 -- valid
  Corydoras loxozonus Nijssen and Isbrücker, 1983 -- valid
  Corydoras marmoratus Steindachner, 1879 -- invalid
  Corydoras melanistius Regan, 1912 -- valid -- black-spotted corydoras
  Corydoras melini Lönnberg and Rendahl, 1930 -- valid
  Corydoras metae Eigenmann, 1914 -- valid
  Corydoras myersi Miranda Ribeiro, 1942 -- invalid -- Myer's corydoras
  Corydoras nanus Nijssen and Isbrücker, 1967 -- valid
  Corydoras nattereri Steindachner, 1876 -- valid
  Corydoras ornatus Nijssen and Isbrücker, 1976 -- valid
  Corydoras paleatus (Jenyns, 1842) -- valid -- peppered corydoras
  Corydoras punctatus (Bloch, 1794) -- valid
  Corydoras pygmaeus Knaack, 1966 -- valid -- pygmy corydoras
  Corydoras rabauti La Monte, 1941 -- valid -- Rabaut's corydoras
  Corydoras reticulatus Fraser-Brunner, 1938 -- valid -- reticulated corydoras
  Corydoras schwartzi Rössel, 1963 -- valid
  Corydoras septentrionalis Gosline, 1940 -- valid
  Corydoras stenocephalus Eigenmann and Allen, 1942 -- valid
  Corydoras sychri Weitzman, 1960 -- valid
  Corydoras trilineatus Cope, 1872 -- valid
  Corydoras undulatus Regan, 1912 -- valid
  Corynopoma Gill, 1858 -- valid
  Corynopoma riisei Gill, 1858 -- valid -- swordfin characin, swordfin characin
  Corynopoma veedonii Gill, 1858 -- invalid
  Coryphaena Linnaeus, 1758 -- valid
  Coryphaena pentadactyla Linnaeus, 1758 -- invalid
  Coryphaenoides Gunner, 1765 -- valid
  Corythoichthys Kaup, 1853 -- valid
  Cosmocampus Dawson, 1979 -- valid
  Cossyphodes Bleeker, 1860 -- invalid
  Cossyphus Valenciennes in Cuvier and Valenciennes, 1839 -- invalid
  Cossyphus puellaris Poey, 1860 -- invalid
  Cottapistus Bleeker, 1876 -- valid
  Cottinella Berg, 1907 -- valid
  Cottiusculus Schmidt in Jordan and Starks, 1904 -- valid
  Cottopsis Girard, 1850 -- invalid
  Cottunculoides Barnard, 1927 -- invalid
  Cottunculus Collett, 1875 -- valid
  Cottus Linnaeus, 1758 -- valid -- Miller's thumbs, freshwater sculpins
  Couesius Jordan, 1878 -- valid -- lake chubs
  Couesius plumbeus (Agassiz, 1850) -- valid -- Lake Chub, méné de lac
  Cranoglanis Peters, 1881 -- valid
  Cranoglanis bouderius (Richardson, 1846) -- valid
  Crassilabrus Swainson, 1839 -- invalid
  Crassinarke Takagi, 1951 -- valid
  Crassinarke dormitor Takagi, 1951 -- valid
  Cratinus Steindachner, 1878 -- valid
  Creagrutus Günther, 1864 -- valid
  Creagrutus beni Eigenmann, 1911 -- valid -- goldstriped characin, goldstriped characin
  Crenicara punctulatum (Günther, 1863) -- valid
  Crenicichla Heckel, 1840 -- valid
  Crenicichla lacustris (Castelnau, 1855) -- valid
  Crenilabrus Oken, 1817 -- invalid
  Crenuchus Günther, 1863 -- valid
  Crenuchus spilurus Günther, 1863 -- valid -- sailfin characin, sailfin characin
  Cromeria Boulenger, 1901 -- valid
  Cromeria nilotica Boulenger, 1901 -- valid
  Crossias Jordan and Starks, 1904 -- invalid
  Crossocheilus Kuhl and van Hasselt in van Hasselt, 1823 -- valid
  Crossocheilus oblongus (Valenciennes in Cuvier and Valenciennes, 1842) -- invalid
  Crossocheilus oblongus oblongus (Valenciennes in Cuvier and Valenciennes, 1842) -- invalid
  Crossocheilus oblongus stigmaeus (Smith, 1945) -- valid
  Crossocheilus siamensis (Smith, 1931) -- invalid -- Siamese flying fox
  Crossorhinus dasypogon Bleeker, 1867 -- invalid
  Crossorhinus tentaculatus Peters, 1864 -- invalid
  Crossorhombus Regan, 1920 -- valid
  Crossorhombus howensis Hensley & Randall, 1993 -- valid
  Crossorhombus valderostratus (Alcock, 1890) -- valid -- strongsnout flounder
  Crossostoma Sauvage, 1878 -- valid
  Crossostoma lacustre Steindachner, 1908 -- valid
  Crossostoma tinkhami Herre, 1934 -- valid
  Cruriraja durbanensis (Von Bonde and Swart, 1923) -- valid
  Cruxentina Fernández-Yépez, 1948 -- invalid
  Cryptopsaras Gill, 1883 -- valid
  Cryptotomus Cope, 1871 -- valid
  Crystallaria Jordan and Gilbert in Jordan, 1885 -- valid -- crystal darters
  Crystallaria asprella (Jordan, 1878) -- valid -- crystal darter
  Crystallichthys Jordan and Gilbert in Jordan and Evermann, 1898 -- valid
  Ctenacis Compagno, 1973 -- valid
  Ctenacis fehlmanni (Springer, 1968) -- valid -- harlequin catshark
  Ctenobrycon Eigenmann, 1908 -- valid
  Ctenobrycon hauxwellianus (Cope, 1870) -- valid
  Ctenobrycon spilurus (Valenciennes in Cuvier and Valenciennes, 1850) -- valid -- silver tetra, silver tetra
  Ctenobrycon spilurus hauxwellianus (Cope, 1870) -- invalid -- silver teta, silver teta
  Ctenobrycon spilurus spilurus (Valenciennes in Cuvier and Valenciennes, 1850) -- valid -- sailfin characin, sailfin characin
  Ctenochaetus marginatus (Valenciennes in Cuvier & Valenciennes, 1835) -- valid -- Bluespotted Surgeonfish, cirujano estriado
  Ctenochirichthys Regan and Trewavas, 1932 -- valid
  Ctenocorissa Whitley, 1931 -- invalid
  Ctenolabrus Valenciennes in Cuvier and Valenciennes, 1839 -- valid
  Ctenolucius Gill, 1861 -- valid
  Ctenolucius beani (Fowler, 1907) -- valid
  Ctenopharyngodon Steindachner, 1866 -- valid -- grass carps
  Ctenopharyngodon idella (Valenciennes in Cuvier and Valenciennes, 1844) -- valid -- grass carp, silver orfe, carpa herbívora
  Ctenopoma kingsleyae Günther, 1896 -- valid -- kingley's ctenopoma
  Ctenopoma muriei (Boulenger, 1906) -- valid
  Cualac Miller, 1956 -- valid
  Cubanichthyinae Parenti, 1981 -- valid
  Cubanichthys Hubbs, 1926 -- valid
  Culter Basilewsky, 1855 -- valid
  Culter alburnus Basilewsky, 1855 -- valid
  Curimata Bosc, 1817 -- valid
  Curimata cyprinoides (Linnaeus, 1766) -- valid
  Curimata magdalenae (Steindachner, 1878) -- invalid -- sardina blanca, sardina blanca
  Curimata multilineata (Myers, 1927) -- invalid
  Curimatella Eigenmann and Eigenmann, 1889 -- valid
  Curimatopsis Steindachner, 1876 -- valid
  Curimatopsis crypticus Vari, 1982 -- valid
  Curimatorbis Fernández-Yépez, 1948 -- invalid
  Curimatus Oken, 1817 -- invalid
  Curimatus multilineatus Myers, 1927 -- invalid
  Curimatus taeniurus Valenciennes in Humboldt and Valenciennes, 1821 -- invalid
  Cycleptus Rafinesque, 1819 -- valid -- blue suckers
  Cycleptus elongatus (Lesueur, 1817) -- valid -- Blue Sucker, matalote azul
  Cyclocheilichthys Bleeker, 1859 -- valid
  Cyclocheilichthys apogon (Valenciennes in Cuvier and Valenciennes, 1842) -- valid
  Cyclogaster Gronow, 1763 -- invalid
  Cyclopsetta Gill, 1889 -- valid
  Cyclopsetta chittendeni Bean, 1895 -- valid -- Mexican flounder, lenguado mexicano, Mexican Flounder
  Cyclopsetta fimbriata (Goode & Bean, 1885) -- valid -- spotfin flounder, lenguado aleta sucia, Spotfin Flounder
  Cyclopsis Popov, 1930 -- valid
  Cyclopterus Linnaeus, 1758 -- valid -- lumpfishes
  Cyclothone Goode and Bean, 1883 -- valid
  Cyema Günther, 1878 -- valid
  Cylindrosteus Rafinesque, 1820 -- invalid
  Cylindrosteus productus Cope, 1865 -- invalid
  Cymolutes Günther, 1861 -- valid
  Cymolutes lecluse (Quoy and Gaimard, 1824) -- valid -- brownlined wrasse
  Cynaedus Swainson, 1839 -- invalid
  Cynias Gill, 1903 -- invalid
  Cynias kanekonis Tanaka, 1916 -- invalid
  Cynicoglossus Bonaparte, 1837 -- invalid
  Cynicoglossus bathybius Gilbert, 1890 -- invalid
  Cynodon Agassiz, 1829 -- valid
  Cynoglossus Hamilton, 1822 -- valid
  Cynoglossus arel (Bloch & Schneider, 1801) -- valid -- brown tonguesole
  Cynoglossus bilineatus (Lacepède, 1802) -- valid -- twolined tonguesole, fourlin tonguesole, ohshitabirame, twolin tonguesole
  Cynoglossus brachycephalus Bleeker, 1870 -- invalid -- short-headed tonguesole
  Cynoglossus broadhursti Waite, 1905 -- valid -- southern tonguesole
  Cynoglossus cynoglossus (Hamilton, 1822) -- valid -- Bengal tonguesole
  Cynoglossus kopsii (Bleeker, 1851) -- valid
  Cynoglossus lida (Bleeker, 1851) -- valid -- shoulderspot tonguesole
  Cynoglossus lingua Hamilton, 1822 -- valid -- long tonguesole
  Cynoglossus puncticeps (Richardson, 1846) -- valid -- spotted tonguesole
  Cynoglossus sinicus Wu, 1932 -- invalid -- Macao sole
  Cynoglossus sinusarabici (Chabanaud, 1931) -- valid
  Cynolebias Steindachner, 1876 -- valid -- pearlfishes
  Cynopanchax Ahl, 1928 -- valid
  Cynopoecilus Regan, 1912 -- valid
  Cynoponticus Costa, 1845 -- valid
  Cynoponticus coniceps (Jordan and Gilbert, 1882) -- valid -- conehead eel, congrio espantoso
  Cynoponticus ferox Costa, 1846 -- valid
  Cynoponticus savanna (Bancroft, 1831) -- valid -- morena arenera, sapphire eel
  Cynothrissa Regan, 1917 -- valid
  Cynothrissa ansorgii (Boulenger, 1910) -- valid -- Ansorge's fangtooth pellonuline, Ansorge's longtooth pellonuline
  Cynothrissa mento Regan, 1917 -- valid -- Nigerian fangtooth pellonuline
  Cypho Myers, 1940 -- valid
  Cyphocharax Fowler, 1906 -- valid
  Cyphocharax magdalenae (Steindachner, 1878) -- valid -- sardina blanca
  Cyphocharax multilineatus (Myers, 1927) -- valid
  Cyprinella Girard, 1856 -- valid -- satinfin shiners
  Cyprinella analostana Girard, 1859 -- valid -- Satinfin Shiner
  Cyprinella caerulea (Jordan, 1877) -- valid -- Blue Shiner
  Cyprinella callisema (Jordan, 1877) -- valid -- Ocmulgee Shiner
  Cyprinella callistia (Jordan, 1877) -- valid -- Alabama Shiner
  Cyprinella callitaenia (Bailey and Gibbs, 1956) -- valid -- Bluestripe Shiner
  Cyprinella camura (Jordan and Meek, 1884) -- valid -- Bluntface Shiner
  Cyprinella chloristia (Jordan and Brayton, 1878) -- valid -- Greenfin Shiner
  Cyprinella formosa (Girard, 1856) -- valid -- Beautiful Shiner, carpita yaqui
  Cyprinella gibbsi (Howell and Williams, 1971) -- valid -- Tallapoosa Shiner
  Cyprinella stigmatura (Jordan, 1877) -- invalid
  Cyprinion Heckel, 1843 -- valid
  Cyprinion acinaces Banister and Clarke, 1977 -- valid
  Cyprinion kais Heckel, 1843 -- valid
  Cyprinodon Lacepède, 1803 -- valid -- pupfishes
  Cyprinus amarus Bloch, 1782 -- invalid
  Cyprinus auratus Linnaeus, 1758 -- invalid
  Cyprinus brama Linnaeus, 1758 -- invalid
  Cyprinus carassius Linnaeus, 1758 -- invalid
  Cyprinus carpio Linnaeus, 1758 -- valid -- common carp, European carp, carpa común, carpe
  Cyprinus devario Hamilton, 1822 -- invalid
  Cyprinus gobio Linnaeus, 1758 -- invalid
  Cyprinus idus Linnaeus, 1758 -- invalid
  Cyprinus phoxinus Linnaeus, 1758 -- invalid
  Cyprinus rerio Hamilton, 1822 -- invalid
  Cypselurus Swainson, 1838 -- valid
  Cyttoidops Smith, 1947 -- invalid
  Cyttomimus Gilbert, 1905 -- valid
  Cyttopsis Gill, 1862 -- valid
  Cyttosoma boops Gilchrist, 1904 -- invalid -- oxeye dory
  Cyttula Weber, 1913 -- invalid
  Cyttus Günther, 1860 -- valid
  Dactyleleotris Smith, 1958 -- invalid
  Dactyleleotris tentaculatus Smith, 1958 -- invalid -- locusthead, locusthead
  Dactyloptena Jordan and Richardson, 1908 -- valid
  Dactyloptena gilberti Snyder, 1909 -- valid
  Dactyloptena macracantha (Bleeker, 1854) -- valid
  Dactyloptena orientalis (Cuvier, 1829) -- valid -- purple flying gurnard
  Dactyloptena papilio Ogilby, 1910 -- valid -- rufous flying gurnard
  Dactyloptena peterseni (Nyström, 1887) -- valid
  Dactyloptena tiltoni Eschmeyer, 1997 -- valid
  Dactylopterus Lacepède, 1801 -- valid
  Dactylopterus macracanthus Bleeker, 1854 -- invalid
  Dactylopterus orientalis Cuvier, 1829 -- invalid
  Dactylopterus peterseni Nyström, 1887 -- invalid
  Dactylopterus volitans (Linnaeus, 1758) -- valid -- flying gurnard, pez murciélago, alón volador
  Dactylopus Gill, 1859 -- valid
  Dactylopus dactylopus (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- fingered dragonet, fingered dragonet
  Dactyloscopus Gill, 1859 -- valid
  Dactyloscopus crossotus Starks, 1913 -- valid -- bigeye stargazer
  Dactyloscopus moorei (Fowler, 1906) -- valid -- speckled stargazer
  Dactyloscopus poeyi Gill, 1861 -- valid -- common sand stargazer, common sand stargazer, mirón ojicorto, shortchin stargazer
  Dactyloscopus tridigitatus Gill, 1859 -- valid -- sand stargazer, mirón ojilargo, miraestrellas ojilargo
  Daector Jordan and Evermann, 1898 -- valid
  Daector schmitti Collette, 1968 -- valid
  Daicocus Jordan and Richardson, 1908 -- invalid
  Daicocus peterseni (Nyström, 1887) -- invalid
  Dalatias licha (Bonnaterre, 1788) -- valid -- kitefin shark
  Dallia Bean, 1880 -- valid -- Alaska blackfishes
  Dallia pectoralis Bean, 1880 -- valid -- Alaska blackfish
  Dalophis Rafinesque, 1810 -- valid
  Dalophis imberbis (Delaroche, 1809) -- valid
  Dalophis marmorata Bleeker, 1853 -- invalid
  Dampieria lineata Castelnau, 1875 -- invalid -- shortfinned cichlops, shortfinned cichlops
  Dampierosa Whitley, 1932 -- valid
  Dampierosa daruma Whitley, 1932 -- valid
  Danacetichthys Paxton, 1989 -- valid
  Danacetichthys galathenus Paxton, 1989 -- valid
  Danaphos Bruun, 1931 -- valid
  Danaphos oculatus (Garman, 1899) -- valid -- bigeye lightfish
  Danaphryne Bertelsen, 1951 -- valid
  Danaphryne nigrifilis (Regan and Trewavas, 1932) -- valid
  Danichthys Bruun, 1934 -- invalid
  Danichthys rondeletii (Valenciennes in Cuvier and Valenciennes, 1847) -- invalid
  Danio Hamilton, 1822 -- valid
  Danio aequipinnatus (McClelland, 1839) -- invalid -- giant danio
  Danio devario (Hamilton, 1822) -- invalid -- Bengal danio
  Danio kerri Smith, 1931 -- valid
  Danio nigrofasciatus (Day, 1870) -- valid -- spotted danio
  Danio rerio (Hamilton, 1822) -- valid -- zebra danio
  Danionella Roberts, 1986 -- valid
  Danionella translucida Roberts, 1986 -- valid
  Dannevigia Whitley, 1941 -- valid
  Dannevigia tusca Whitley, 1941 -- valid
  Daramattus Smith, 1960 -- invalid
  Daramattus americanus (Nichols and Firth, 1939) -- invalid -- thorny tinselfish
  Daruma Jordan and Starks, 1904 -- valid
  Daruma sagamia Jordan and Starks, 1904 -- valid
  Dascyllus Cuvier, 1829 -- valid
  Dascyllus albisella Gill, 1862 -- valid -- spot dascyllus, Hawaiian dascyllus, Hawaiian threespot damselfish, threespot damsel
  Dascyllus aruanus (Linnaeus, 1758) -- valid -- black-and-white damselfish, banded humbug, black and white damselfish, whitetail dascyllus, threestripe damselfish, humbug damselfish
  Dascyllus marginatus (Rüppell, 1829) -- valid -- grey humbug, marginate dascyllus
  Dascyllus melanurus Bleeker, 1854 -- valid -- blacktailed humbug, blacktail humbug, fourstripe damselfish
  Dascyllus reticulatus (Richardson, 1846) -- valid -- twostriped damselfish, gray humbug, reticulate dascyllus
  Dascyllus trimaculatus (Rüppell, 1829) -- valid -- threespot humbug, domino damselfish, threespot dascyllus, whitespot humbug
  Dasyatis acutirostra Nishida and Nakaya, 1988 -- valid
  Dasyatis akajei (Müller and Henle, 1841) -- valid
  Dasyatis americana Hildebrand and Schroeder, 1928 -- valid -- raya látigo blanca, southern stingray, raya americana
  Dasyatis annotatus Last, 1987 -- valid
  Dasyatis bennettii (Müller and Henle, 1841) -- valid
  Dasyatis brevicaudata (Hutton, 1875) -- valid
  Dasyatis brevis (Garman, 1880) -- valid
  Dasyatis centroura (Mitchill, 1815) -- valid -- roughtail stingray, clam cracker, stingaree
  Dasyatis chrysonota (Smith, 1828) -- valid
  Dasyatis chrysonota marmorata (Steindachner, 1892) -- valid
  Dasyatis dipterura (Jordan and Gilbert, 1880) -- valid -- raya látigo diamante, diamond stingray
  Dasyatis fluviorum Ogilby, 1908 -- valid
  Dasyatis garouaensis (Stauch and Blanc, 1962) -- valid
  Dasyatis geijskesi Boeseman, 1948 -- valid -- wingfin stingray
  Dasyatis gerrardi (Gray, 1851) -- invalid
  Dasyatis giganteus (Lindberg in Soldatov and Lindberg, 1930) -- valid
  Dasyatis guileri Last, 1979 -- valid
  Dasyatis guttata (Bloch and Schneider, 1801) -- valid -- raya látigo del Golfo, longnose stingray, raya máxima
  Dasyatis hawaiensis Jenkins, 1903 -- invalid -- Hawaiian stingray, lu-pe
  Dasyatis imbricata (Bloch and Schneider, 1801) -- invalid
  Dasyatis izuensis Nishida and Nakaya, 1988 -- valid
  Dasyatis kuhlii (Müller and Henle, 1841) -- valid
  Dasyatis latus (Garman, 1880) -- valid -- brown stingray, hihi-manu
  Dasyatis leylandi Last, 1987 -- valid
  Dasyatis longus (Garman, 1880) -- valid
  Dasyatis margarita (Günther, 1870) -- valid
  Dasyatis margaritella Compagno and Roberts, 1984 -- valid
  Dasyatis matsubarai Miyosi, 1939 -- valid
  Dasyatis microps (Annandale, 1908) -- valid
  Dasyatis navarrae (Steindachner, 1892) -- valid
  Dasyatis pastinaca (Linnaeus, 1758) -- valid -- blue stingray, common stingray
  Dasyatis rudis (Günther, 1870) -- valid
  Dasyatis sabina (Lesueur, 1824) -- valid -- raya látigo de espina, Atlantic stingray, raya enana
  Dasyatis say (Lesueur, 1817) -- valid -- raya látigo chata, bluntnose stingray, raya mediana
  Dasyatis sephen (Forsskċl, 1775) -- invalid
  Dasyatis sinensis (Steindachner, 1892) -- valid
  Dasyatis thetidis Ogilby in Waite, 1899 -- valid
  Dasyatis ukpam (Smith, 1863) -- valid
  Dasyatis ushiei (Jordan and Hubbs, 1925) -- valid
  Dasyatis violacea (Bonaparte, 1832) -- invalid -- pelagic stingray
  Dasyatis zugei (Müller and Henle, 1841) -- valid
  Dasycottus Bean, 1890 -- valid
  Dasycottus setiger Bean, 1890 -- valid -- spinyhead sculpin
  Daya Bleeker, 1877 -- invalid
  Daya jerdoni (Day, 1873) -- invalid -- green puller
  Dayella Talwar and Whitehead, 1971 -- valid
  Dayella malabarica (Day, 1873) -- valid -- Day's round herring
  Deania calcea (Lowe, 1839) -- valid -- birdbeak dogfish
  Deania eglantina Jordan and Snyder, 1902 -- invalid
  Deania hystricosa (Garman, 1906) -- valid -- rough longnose dogfish
  Deania profundorum (Smith and Radcliffe in Smith, 1912) -- valid -- arrowhead dogfish
  Deania quadrispinosum (McCulloch, 1915) -- valid -- longsnout dogfish
  Decapogon adspersus (Steindachner, 1876) -- invalid
  Decapogon urostriatum Miranda Ribeiro, 1912 -- invalid
  Decodon Günther, 1861 -- valid
  Decodon puellaris (Poey, 1860) -- valid -- red hogfish, doncella de lo alto
  Delolepis Bean, 1882 -- invalid
  Delolepis gigantea Kittlitz, 1858 -- invalid
  Deltentosteus Gill, 1863 -- valid
  Deltentosteus quadrimaculatus (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- fourspotted goby, fourspotted goby
  Deltistes Seale, 1896 -- valid -- Lost River suckers
  Deltistes luxatus (Cope, 1879) -- valid -- Lost River Sucker
  Delturus Eigenmann and Eigenmann, 1889 -- valid
  Delturus parahybae Eigenmann and Eigenmann, 1889 -- valid
  Denariusa Whitley, 1948 -- valid
  Dendrochirus Swainson, 1839 -- valid
  Dendrochirus barberi (Steindachner, 1900) -- valid
  Dendrochirus brachypterus (Cuvier in Cuvier and Valenciennes, 1829) -- valid
  Dendrochirus zebra (Cuvier in Cuvier and Valenciennes, 1829) -- valid -- dwarf lionfish, zebra turkeyfish
  Dendrophysa Trewavas, 1964 -- valid
  Dendroscorpaena gilchristi Smith, 1957 -- invalid -- Gilchrist's scorpionfish
  Dentatherina Patten and Ivantsoff, 1983 -- valid
  Dentatherina merceri Patten and Ivantsoff, 1983 -- valid
  Dentex Cuvier, 1814 -- valid
  Dentex canariensis Steindachner, 1881 -- valid
  Dentex dentex (Linnaeus, 1758) -- valid
  Dentex gibbosus (Rafinesque, 1810) -- valid
  Dentex macrophthalmus (Bloch, 1791) -- valid
  Dentex macrophthalmus opsophthalmus Ananiadés, 1950 -- valid
  Dentex maroccanus Valenciennes in Cuvier and Valenciennes, 1830 -- valid
  Denticeps Clausen, 1959 -- valid
  Denticeps clupeoides Clausen, 1959 -- valid
  Derepodichthys Gilbert, 1896 -- valid
  Derepodichthys alepidotus Gilbert, 1896 -- valid
  Derichthys Gill, 1884 -- valid
  Derichthys serpentinus Gill, 1884 -- valid -- narrowneck eel
  Dermatolepis Gill, 1861 -- valid
  Dermatolepis dermatolepis (Boulenger, 1895) -- valid -- mero cuero, leather bass
  Dermatolepis striolata (Playfair in Playfair and Günther, 1867) -- valid -- smooth grouper
  Dermatopsis Ogilby, 1896 -- valid
  Dermatopsis kasougae Smith, 1943 -- invalid
  Dermatopsis macrodon Ogilby, 1896 -- valid
  Dermatopsis multiradiatus McCulloch and Waite, 1918 -- valid
  Dermatopsoides Smith, 1948 -- valid
  Dermatopsoides kasougae (Smith, 1943) -- valid -- orange brotula
  Dermatopsoides talboti Cohen, 1966 -- valid -- lesser orange brotula
  Dermatostethus punctipinnis Gill, 1862 -- invalid -- swivelhead pipefish, swivelhead pipefish
  Dermogenys Kuhl and van Hasselt in van Hasselt, 1823 -- valid
  Dermogenys pusillus Kuhl and van Hasselt in van Hasselt, 1823 -- invalid
  Desmodema Walters and Fitch, 1960 -- valid
  Desmodema lorum Rosenblatt and Butler, 1977 -- valid -- whiptail ribbonfish, listoncillo látigo
  Desmodema polystictum (Ogilby, 1898) -- valid -- polka-dot ribbonfish
  Dexistes Jordan & Starks, 1904 -- valid
  Dexistes rikuzenius Jordan & Starks, 1904 -- valid -- migigarei, rikuzen flounder
  Diagramma Oken, 1817 -- valid
  Dialarchus Greeley, 1899 -- invalid
  Diancistrus Ogilby, 1899 -- valid
  Diancistrus longifilis Ogilby, 1899 -- valid
  Dianema Cope, 1871 -- valid
  Dianema longibarbis Cope, 1872 -- valid
  Dianema urostriatum (Miranda Ribeiro, 1912) -- valid
  Diaphus Eigenmann and Eigenmann, 1890 -- valid
  Diaphus adenomus Gilbert, 1905 -- valid
  Diaphus anderseni Tċning, 1932 -- valid
  Diaphus anteorbitalis Gilbert, 1913 -- invalid
  Diaphus bertelseni Nafpaktitis, 1966 -- valid
  Diaphus brachycephalus Tċning, 1928 -- valid
  Diaphus effulgens (Goode and Bean, 1896) -- valid
  Diaphus elucens (Brauer, 1904) -- invalid
  Diaphus fragilis Tċning, 1928 -- valid -- fragile lanternfish
  Diaphus garmani Gilbert, 1906 -- valid
  Diaphus holti Tċning, 1918 -- valid
  Diaphus lucidus (Goode and Bean, 1896) -- valid
  Diaphus luetkeni (Brauer, 1904) -- valid
  Diaphus metopoclampus (Cocco, 1829) -- valid
  Diaphus minax Nafpaktitis, 1968 -- valid
  Diaphus mollis Tċning, 1928 -- valid
  Diaphus perspicillatus (Ogilby, 1898) -- valid -- transparent lanternfish
  Diaphus problematicus Parr, 1928 -- valid -- pez linterna problemático
  Diaphus roei Nafpaktitis, 1974 -- valid
  Diaphus subtilis Nafpaktitis, 1968 -- valid
  Diaphus taaningi Norman, 1930 -- valid
  Diaphus termophilus Tċning, 1928 -- valid -- Taaning's lanternfish
  Diaphus theta Eigenmann and Eigenmann, 1890 -- valid -- California headlightfish, linternilla californiana
  Diaphus vanhoeffeni (Brauer, 1906) -- valid
  Diapoma Cope, 1894 -- valid
  Diapoma speculiferum Cope, 1894 -- valid
  Diapteron Huber and Seegers, 1977 -- invalid
  Diapteron cyanostictum (Lambert and Géry, 1968) -- invalid
  Diapterus Ranzani, 1842 -- valid -- longspine mojarras
  Diapterus auratus Ranzani, 1842 -- valid -- Irish pompano, patao común, mojarra guacha
  Diapterus plumieri (Cuvier in Cuvier and Valenciennes, 1830) -- invalid
  Diastobranchus Barnard, 1923 -- invalid
  Diastobranchus capensis Barnard, 1923 -- invalid -- ooze eel
  Diastodon Bowdich, 1825 -- invalid
  Dibranchus Peters, 1876 -- valid
  Dibranchus atlanticus Peters, 1876 -- valid -- Atlantic batfish
  Dibranchus micropus Alcock, 1891 -- invalid -- lesser handfish
  Dicentrarchus Gill, 1860 -- valid
  Dicentrarchus punctatus (Bloch, 1792) -- valid -- spotted bass, sea bass, spotted bass, spotted seabass
  Diceratias Günther, 1887 -- valid
  Diceratias bispinosus (Günther, 1887) -- valid
  Dichichthys melanobranchus Chan, 1966 -- invalid
  Dicotylichthys Kaup, 1855 -- valid
  Dicotylichthys myersi Ogilby, 1910 -- invalid -- Meyer's porcupinefish
  Dicotylichthys punctulatus Kaup, 1855 -- valid -- threebar porcupinefish
  Dicrolene Goode and Bean, 1883 -- valid
  Dicrolene gregoryi Trotter, 1926 -- valid
  Dicrolene introniger Goode and Bean, 1883 -- valid
  Dicrolene intronigra Goode and Bean, 1883 -- invalid
  Dicrolene kanazawai Grey, 1958 -- valid
  Dicrolene longimana Smith and Radcliffe in Radcliffe, 1913 -- valid
  Dicrolene mesogramma Shcherbachev, 1980 -- valid
  Dimalacocentrus Gill, 1863 -- invalid
  Dinematichthys Bleeker, 1855 -- valid
  Dinolestes Klunzinger, 1872 -- valid
  Dinoperca Boulenger, 1895 -- valid
  Dinotopterus Boulenger, 1906 -- valid
  Dinotopterus jacksoni Greenwood, 1961 -- invalid
  Diodon Linnaeus, 1758 -- valid -- porcupinefishes
  Diogenichthys Bolin, 1939 -- valid
  Dionda Girard, 1856 -- valid -- desert minnows
  Dionda catostomops Hubbs and Miller, 1977 -- invalid -- Pánuco minnow, carpa de Tamasopo
  Dionda diaboli Hubbs and Brown, 1957 -- valid -- Devils River Minnow, carpa diabla
  Dionda episcopa Girard, 1856 -- valid -- Roundnose Minnow, carpa obispa
  Dionda melanops Girard, 1856 -- valid -- Spotted Minnow, carpa manchada
  Diplacanthopoma Günther, 1887 -- valid
  Diplectrum Holbrook, 1855 -- valid
  Diplobatis ommata (Jordan and Gilbert in Jordan and Bollman, 1890) -- valid -- bullseye electric ray, raya eléctrica diana
  Diplobatis pictus Palmer, 1950 -- valid
  Diplobatis pictus guamachensis Martín Salazar, 1957 -- invalid
  Diplodus Rafinesque, 1810 -- valid -- spottail porgies
  Diplolychnus Regan and Trewavas, 1929 -- invalid
  Diplomystes Bleeker, 1858 -- valid
  Diplomystes camposensis Arratia, 1987 -- valid
  Diplophos Günther, 1873 -- valid
  Diploprion Cuvier in Cuvier and Valenciennes, 1828 -- valid
  Diproctacanthus Bleeker, 1862 -- valid
  Dipterygonotus Bleeker, 1849 -- valid
  Dipturus Rafinesque, 1810 -- valid -- longnosed skates
  Dipturus nidrosiensis (Storm, 1881) -- invalid
  Diptychus Steindachner, 1866 -- valid
  Diptychus dybowskii Kessler, 1874 -- invalid
  Diptychus maculatus Steindachner, 1866 -- valid
  Dirrhizodon Klunzinger, 1871 -- invalid
  Dirrhizodon elongatus Klunzinger, 1871 -- invalid
  Discochaetodon Nalbant, 1971 -- invalid
  Discopyge Heckel in Tschudi, 1846 -- valid
  Discopyge tschudii Heckel in Tschudi, 1846 -- valid
  Disparichthys Herre, 1935 -- invalid
  Distichodus Müller and Troschel, 1844 -- valid
  Distichodus affinis Günther, 1873 -- valid
  Distichodus fasciolatus Boulenger, 1898 -- valid
  Distichodus lusosso Schilthuis, 1891 -- valid
  Distichodus sexfasciatus Boulenger, 1897 -- valid -- banded distichodus, banded distichodus
  Distocyclus Mago-Leccia, 1978 -- valid
  Ditropichthys Parr, 1934 -- valid
  Ditropichthys storeri (Goode and Bean, 1895) -- valid
  Doederleinia Steindachner in Steindachner and Döderlein, 1883 -- valid
  Doiichthys Weber, 1913 -- invalid
  Doiichthys novaeguineae Weber, 1913 -- invalid
  Dolichallabes Poll, 1942 -- valid
  Dolichallabes microphthalmus Poll, 1942 -- valid
  Dolichopteryx Brauer, 1901 -- valid
  Dolopichthys Garman, 1899 -- valid
  Dolopichthys nigrifilis Regan and Trewavas, 1932 -- invalid
  Doraops Schultz, 1944 -- valid
  Doraops zuloagai Schultz, 1944 -- valid
  Doras Lacepède, 1803 -- valid
  Doras brevis Kner, 1853 -- invalid
  Doras hancockii Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Doras spinosissimus Eigenmann and Eigenmann, 1888 -- invalid
  Doratonotus Günther, 1861 -- valid
  Dorichthys Kaup, 1853 -- invalid
  Dorosoma Rafinesque, 1820 -- valid -- gizzard shads
  Dorosoma anale Meek, 1904 -- valid -- longfin gizzard shad, sardina del Papaloapan, Mexican river gizzard shad
  Dorosoma cepedianum (Lesueur, 1818) -- valid -- gizzard shad, sardina molleja, alose à gésier, American gizzard shad, eastern gizzard shad, hickory shad, mud shad, skipjack
  Dorosoma chavesi Meek, 1907 -- valid -- Nicaragua gizzard shad
  Dorosoma petenense (Günther, 1867) -- valid -- threadfin shad, sardina maya
  Dorosoma smithi Hubbs and Miller, 1941 -- valid -- sardina norteña, Pacific gizzard shad
  Doryrhamphus Kaup, 1856 -- valid
  Dotalabrus Whitley, 1930 -- valid
  Doumea Sauvage, 1879 -- valid
  Doumea alula Nichols and Griscom, 1917 -- valid
  Doumea typica Sauvage, 1879 -- valid
  Draculo Snyder, 1911 -- valid
  Draculo celetus (Smith, 1963) -- valid -- dainty dragonet
  Drombus Jordan and Seale, 1905 -- valid
  Drombus triangularis (Weber, 1909) -- valid
  Dundocharax Poll, 1967 -- valid
  Dundocharax bidentatus Poll, 1967 -- valid
  Duohemipteronotus Fowler, 1956 -- invalid
  Dussumieria acuta Valenciennes in Cuvier and Valenciennes, 1847 -- valid -- common sprat, rainbow sardine, sardine arc-en-ciel, sardina arco iris
  Dussumieria elopsoides Bleeker, 1849 -- valid -- slender rainbow sardine
  Dussumieria hasseltii Bleeker, 1851 -- invalid -- Hasselt's sprat
  Duymaeria Bleeker, 1856 -- invalid
  Dysomma anguillare Barnard, 1923 -- valid -- shortbelly eel, blind arrowtooth eel, anguila panzacorta
  Dysomma aphododera Ginsburg, 1951 -- invalid
  Dysomma brevirostre (Facciolà, 1887) -- valid -- batnose eel
  Dysommina Ginsburg, 1951 -- valid
  Dysommina rugosa Ginsburg, 1951 -- valid
  Dysommopsis Alcock, 1891 -- invalid
  Ebinania Sakamoto, 1932 -- valid
  Ebosia Jordan and Starks, 1904 -- valid
  Echelus Rafinesque, 1810 -- valid
  Echelus myrus (Linnaeus, 1758) -- valid
  Echelus punctatus Rafinesque, 1810 -- invalid
  Echelus rufus Rafinesque, 1810 -- invalid
  Echeneis Linnaeus, 1758 -- valid -- slender remoras, sharksuckers
  Echidna Forster, 1777 -- valid
  Echidna amblyodon (Bleeker, 1856) -- valid
  Echidna catenata (Bloch, 1795) -- valid -- chain moray, morena jaspeada, morena cadena
  Echidna delicatula (Kaup, 1856) -- valid
  Echidna fascigula (Peters, 1855) -- invalid
  Echidna leucotaenia Schultz, 1943 -- valid
  Echidna nebulosa (Ahl, 1789) -- valid -- starry moray, white moray, morena estrellada
  Echidna nocturna (Cope, 1872) -- valid -- palenose moray, morena pecosa
  Echidna peli (Kaup, 1856) -- valid
  Echidna polyzona (Richardson, 1845) -- valid -- banded moray, ringed reef moray
  Echidna rhodochilus Bleeker, 1863 -- valid
  Echidna unicolor Schultz in Schultz, Herald, Lachner, Welander and Woods, 1953 -- valid
  Echidna zebra (Shaw in Shaw and Nodder, 1797) -- invalid -- zebra moray
  Echinophryne McCulloch and Waite, 1918 -- valid
  Echinorhinus brucus (Bonnaterre, 1788) -- valid -- bramble shark
  Echinorhinus cookei Pietschmann, 1928 -- valid -- tiburón espinoso negro, prickly shark
  Echinorhinus spinosus (Gmelin, 1789) -- invalid
  Echiodon Thompson, 1837 -- valid
  Echiophis Kaup, 1856 -- valid
  Echiophis brunneus (Castro-Aguirre and Suárez de los Cobos, 1983) -- valid -- fangjaw eel, tieso colmillón
  Echiophis intertinctus (Richardson, 1848) -- valid -- spotted spoon-nose eel, safío dentudo lunado, tieso cucharón manchado
  Echiophis mordax (Poey, 1860) -- valid -- snapper eel
  Echiophis punctifer (Kaup, 1860) -- valid -- stippled spoon-nose eel, safío dentudo punteado, snapper eel, tieso pecoso
  Echiostoma Lowe, 1843 -- valid
  Ectreposebastes Garman, 1899 -- valid
  Edelia Castelnau, 1873 -- invalid
  Ehirava Deraniyagala, 1929 -- valid
  Ehirava fluviatilis Deraniyagala, 1929 -- valid -- Malabar sprat
  Eigenmannia Jordan and Evermann, 1896 -- valid
  Eigenmannia trilineata López and Castello, 1966 -- valid
  Eigenmannia virescens (Valenciennes, 1842) -- valid -- green knifefish, green knifefish
  Eigenmannina Fowler, 1906 -- invalid
  Elachocharax Myers, 1927 -- valid
  Elachocharax geryi Weitzman and Kanazawa, 1978 -- valid
  Elachocharax pulcher Myers, 1927 -- valid
  Elanura Gilbert, 1896 -- invalid
  Elaphocottus Sauvage, 1878 -- invalid
  Elassichthys Hubbs and Wisner, 1980 -- invalid
  Elassodiscus Gilbert and Burke, 1912 -- valid
  Elates Jordan and Seale, 1907 -- valid
  Electrophorus Gill, 1864 -- valid
  Electrophorus electricus (Linnaeus, 1766) -- valid -- electric eel, electric eel
  Electrophorus multivalvulus Nakashima, 1941 -- invalid
  Eleginus Fischer, 1813 -- valid -- saffron cod
  Elephenor Jordan, 1919 -- invalid
  Eleutheronema Bleeker, 1862 -- valid
  Elopichthys Bleeker, 1860 -- valid
  Elopichthys bambusa (Richardson, 1845) -- valid
  Elops Linnaeus, 1766 -- valid -- ladyfishes
  Elops australis Regan, 1909 -- invalid
  Elops lacerta Valenciennes in Cuvier and Valenciennes, 1847 -- valid -- Atlantic ladyfish, Guinean ladyfish
  Elops machnata (Forsskċl, 1775) -- valid
  Elops saurus Linnaeus, 1766 -- valid -- ladyfish, banano, machete del Atlántico
  Elops senegalensis Regan, 1909 -- valid
  Embassichthys bathybius (Gilbert, 1890) -- valid -- deepsea sole, platija de profundidad, Deepsea Sole, plie de profondeur
  Emissola Jarocki, 1822 -- invalid
  Emissola ganearum Whitley, 1945 -- invalid
  Emissola maugeana Whitley, 1939 -- invalid
  Emmelichthyops Schultz, 1945 -- valid -- bonnetmouth
  Emmelichthys Richardson, 1845 -- valid -- poolfishes
  Encheliophis Müller, 1842 -- valid
  Encheliophis boraborensis (Kaup, 1856) -- valid
  Encheliophis dubius (Putnam, 1874) -- invalid -- Pacific pearlfish, perlero del Pacífico
  Encheliophis homei (Richardson, 1846) -- valid -- silver pearlfish
  Enchelycore Kaup, 1856 -- valid
  Enchelycore anatina (Lowe, 1838) -- valid -- fangtooth moray
  Enchelycore bayeri (Schultz in Schultz, Herald, Lachner, Welander and Woods, 1953) -- valid
  Enchelycore carychroa Böhlke and Böhlke, 1976 -- valid -- chestnut moray, morena parda, morena castaña
  Enchelycore kamara Böhlke and Böhlke, 1980 -- valid
  Enchelycore nigricans (Bonnaterre, 1788) -- valid -- viper moray, morena mulata, morena víbora
  Enchelycore octaviana (Myers and Wade, 1941) -- valid -- slenderjaw moray, morena octaviana
  Enchelycore pardalis (Temminck and Schlegel, 1846) -- valid -- dragon moray eel, Hawaiian dragon eel
  Enchelycore ramosa (Griffin, 1926) -- valid
  Enchelycore schismatorhynchus (Bleeker, 1853) -- valid
  Enchelynassa Kaup, 1855 -- valid
  Enchelynassa canina (Quoy and Gaimard, 1824) -- valid
  Enchelyopus Bloch and Schneider, 1801 -- valid
  Encrasicholina Fowler, 1938 -- valid
  Encrasicholina devisi (Whitley, 1940) -- valid -- Devis' anchovy
  Engraulicypris Günther, 1894 -- valid
  Engraulicypris sardella (Günther, 1868) -- valid
  Engraulis Cuvier, 1816 -- valid
  Engraulis anchoita Hubbs and Marini in Marini, 1935 -- valid -- Argentine anchoita
  Engraulis capensis Gilchrist, 1913 -- invalid -- southern African anchovy
  Engraulis encrasicolus (Linnaeus, 1758) -- valid -- European anchovy
  Engraulis januarius Steindachner, 1879 -- invalid
  Engyophrys Jordan & Bollman, 1890 -- valid
  Engyophrys senta Ginsburg, 1933 -- valid -- spiny flounder, lenguado ojicornudo, Spiny Flounder
  Engyprosopon Günther, 1862 -- valid
  Engyprosopon arenicola Jordan & Evermann, 1903 -- valid
  Engyprosopon grandisquama (Temminck & Schlegel, 1846) -- valid -- spotted-tail flounder
  Engyprosopon hawaiiensis Jordan & Evermann, 1903 -- valid
  Engyprosopon natalensis Regan, 1920 -- valid -- Natal flounder
  Engyprosopon xenandrus Gilbert, 1905 -- valid
  Enneacampus Dawson, 1981 -- valid
  Enneacanthus Gill, 1864 -- valid -- little sunfishes, banded sunfishes
  Enophrys Swainson, 1839 -- valid -- stone sculpins
  Entomacrodus Gill, 1859 -- valid
  Eopsetta Jordan & Goss in Jordan, 1885 -- valid
  Eopsetta exilis (Jordan & Gilbert, 1880) -- invalid -- slender sole
  Eopsetta grigorjewi (Herzenstein, 1890) -- valid -- mushigarei, roundnose flounder, shothole flounder, shotted halibut
  Eopsetta jordani (Lockington, 1879) -- valid -- petrale sole, platija petrale, Petrale Sole, plie de Californie
  Epalzeorhynchos Bleeker, 1855 -- valid
  Epalzeorhynchos bicolor (Smith, 1931) -- valid -- red-tailed black shark
  Epalzeorhynchos frenatum (Fowler, 1934) -- valid -- ruby shark
  Epalzeorhynchos kalopterus (Bleeker, 1851) -- valid -- flying fox
  Epalzeorhynchos stigmaeus Smith, 1945 -- invalid
  Epalzeorhynchus Bleeker, 1855 -- invalid
  Epalzeorhynchus bicolor (Smith, 1931) -- invalid -- red-tailed black shark
  Epalzeorhynchus frenatus (Fowler, 1934) -- invalid -- ruby shark
  Epalzeorhynchus kallopterus (Bleeker, 1851) -- invalid -- flying fox
  Epalzeorhynchus siamensis Smith, 1931 -- invalid
  Epalzeorhynchus stigmaeus Smith, 1945 -- invalid
  Ephippicharax orbicularis (Valenciennes in Cuvier and Valenciennes, 1850) -- invalid
  Epibulus Cuvier, 1815 -- valid
  Epicyrtus microlepis Reinhardt, 1851 -- invalid
  Epicyrtus paradoxus (Müller and Troschel, 1844) -- invalid
  Epigonus Rafinesque, 1810 -- valid
  Epinephelides Ogilby, 1899 -- valid
  Epinephelus Bloch, 1793 -- valid -- groupers
  Epinephelus argus (Bloch and Schneider, 1801) -- invalid -- bluespotted argus, bluespotted grouper
  Epinephelus dermatolepis Boulenger, 1895 -- invalid -- leather bass
  Epinephelus guaza (Linnaeus, 1758) -- invalid
  Epinephelus inermis (Valenciennes in Cuvier and Valenciennes, 1833) -- invalid -- marbled grouper
  Epiplatys Gill, 1862 -- valid
  Equetus Rafinesque, 1815 -- valid -- ribbonfishes
  Equula Cuvier, 1815 -- invalid
  Eremichthys Hubbs and Miller, 1948 -- valid -- desert daces
  Eremophilus Humboldt, 1805 -- valid
  Erethistes Müller and Troschel, 1849 -- valid
  Erethistes maesotensis Kottelat, 1983 -- valid
  Eretmichthys Garman, 1899 -- valid
  Ereunias Jordan and Snyder, 1901 -- valid
  Ericara Gill and Townsend, 1897 -- invalid
  Ericymba Cope, 1865 -- valid -- silverjaw minnows
  Ericymba buccata Cope, 1865 -- valid -- Silverjaw Minnow
  Eridacnis Smith, 1913 -- valid -- ribbontail cat sharks
  Eridacnis barbouri (Bigelow and Schroeder, 1944) -- valid -- Cuban ribbontail catshark, Cuban ribbontail cat shark, tiburón turquino
  Eridacnis radcliffei Smith, 1913 -- valid -- pygmy ribbontail catshark
  Eridacnis sinuans (Smith, 1957) -- valid -- African ribbontail catshark
  Erilepis Gill, 1894 -- valid
  Erimystax Jordan, 1882 -- valid -- slender chubs
  Erimystax cahni (Hubbs and Crowe, 1956) -- valid -- Slender Chub
  Erimystax dissimilis (Kirtland, 1840) -- valid -- Streamline Chub
  Erimystax harryi (Hubbs and Crowe, 1956) -- valid -- Ozark Chub
  Erimystax insignis (Hubbs and Crowe, 1956) -- valid -- Blotched Chub
  Erimystax x-punctatus (Hubbs and Crowe, 1956) -- valid -- gravelier, Gravel Chub
  Erimyzon Jordan, 1876 -- valid -- chubsuckers
  Erimyzon oblongus (Mitchill, 1814) -- valid -- creek chubsucker, Eastern Creek Chubsucker
  Erimyzon sucetta (Lacepède, 1803) -- valid -- Lake Chubsucker, sucet de lac
  Erimyzon tenuis (Agassiz, 1855) -- valid -- Sharpfin Chubsucker
  Erisphex Jordan and Starks, 1904 -- valid
  Erosa Swainson, 1839 -- valid
  Erpetoichthys Smith, 1865 -- valid -- reedfishes, ropefishes
  Erpetoichthys calabaricus Smith, 1865 -- valid -- snakefish, reedfish, ropefish
  Errex Jordan, 1919 -- invalid
  Errex zachirus (Lockington, 1879) -- invalid -- rex sole
  Erychthys Swainson, 1839 -- invalid
  Erythrinus Scopoli, 1777 -- valid
  Erythrinus erythrinus (Bloch and Schneider, 1801) -- valid
  Erythrinus unitaeniatus Spix and Agassiz, 1829 -- invalid
  Erythrocles Jordan, 1919 -- valid
  Escualosa Whitley, 1940 -- valid
  Escualosa elongata Wongratana, 1983 -- valid -- slender white sardine
  Escualosa thoracata (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- white sardine, alose blanche, sardina blanca
  Esomus Swainson, 1839 -- valid
  Esomus ahli Hora and Mukerji, 1928 -- valid
  Esomus danricus (Hamilton, 1822) -- valid
  Esomus metallicus Ahl, 1923 -- valid
  Esox Linnaeus, 1758 -- valid -- pikes
  Etelis Cuvier in Cuvier and Valenciennes, 1828 -- valid -- Ruby Snappers
  Ethadophis Rosenblatt and McCosker, 1970 -- valid
  Ethadophis akkistikos McCosker and Böhlke, 1984 -- valid -- indifferent eel
  Ethadophis byrnei Rosenblatt and McCosker, 1970 -- valid -- ordinary eel, tieso de Cortés
  Ethadophis epinepheli (Blache and Bauchot, 1972) -- valid
  Ethadophis foresti (Cadenat and Roux, 1964) -- valid
  Ethadophis merenda Rosenblatt and McCosker, 1970 -- valid -- snack eel, tieso merienda
  Etheostoma Rafinesque, 1819 -- valid -- smoothbelly darters
  Etheostoma bellator Suttkus and Bailey, 1993 -- valid -- Warrior Darter
  Etheostoma etowhae Wood and Mayden, 1993 -- invalid -- Etowah Darter
  Etheostoma meridianum (Williams, 1975) -- invalid -- Southern Sand Darter
  Etheostoma pellucidum (Putnam, 1863) -- invalid -- Eastern Sand Darter
  Etheostoma vivax (Hay, 1882) -- invalid
  Ethmalosa Regan, 1917 -- valid
  Ethmalosa fimbriata (Bowdich, 1825) -- valid -- Bonga shad
  Ethmidium Thompson, 1916 -- valid
  Ethmidium maculatum (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- Pacific menhaden
  Etmopterus abernethyi Garrick, 1957 -- invalid
  Etmopterus aculeatus Rafinesque, 1810 -- invalid
  Etmopterus baxteri Garrick, 1957 -- valid -- New Zealand lanternshark
  Etmopterus brachyurus Smith and Radcliffe in Smith, 1912 -- valid -- shorttail laternshark
  Etmopterus bullisi Bigelow and Schroeder, 1957 -- valid -- lined lanternshark, lined lantern shark
  Etmopterus decacuspidatus Chan, 1966 -- valid -- combtoothed lanternshark
  Etmopterus frontimaculatus Pietschmann, 1907 -- invalid
  Etmopterus gracilispinis Krefft, 1968 -- valid -- broadband lantern shark, broadband dogfish, broadbanded lanternshark
  Etmopterus granulosus (Günther, 1880) -- valid -- southern laternshark
  Etmopterus hillianus (Poey, 1861) -- valid -- Caribbean lanternshark, blackbelly dogfish, galludo enano
  Etmopterus lucifer Jordan and Snyder, 1902 -- valid -- blackbelly lanternshark
  Etmopterus molleri (Whitley, 1939) -- valid
  Etmopterus paessleri Lönnberg, 1907 -- invalid
  Etmopterus polli Bigelow, Schroeder and Springer, 1953 -- valid -- African lanternshark, African lantern shark
  Etmopterus princeps Collett, 1904 -- valid -- great lanternshark, rough sagre
  Etmopterus pusillus (Lowe, 1839) -- valid -- smooth lanternshark, smooth lantern shark
  Etmopterus schultzi Bigelow, Schroeder and Springer, 1953 -- valid -- fringefin lantern shark, fringefin lanternshark
  Etmopterus sentosus Bass, D'Aubrey and Kistnasamy, 1976 -- valid -- thorny lantershark
  Etmopterus spinax (Linnaeus, 1758) -- valid -- velvet belly
  Etmopterus unicolor (Engelhardt, 1912) -- valid -- brown lanternshark
  Etmopterus villosus Gilbert, 1905 -- valid -- Hawaiian lanternshark
  Etmopterus virens Bigelow, Schroeder and Springer, 1953 -- valid -- green lanternshark, green lantern shark
  Etropus Jordan & Gilbert, 1882 -- valid
  Etropus crossotus Jordan & Gilbert, 1882 -- valid -- fringed flounder, lenguado orlado, lenguado ribete, Fringed Flounder
  Etropus cyclosquamus Leslie & Stewart, 1986 -- valid -- shelf flounder, Shelf Flounder
  Etropus intermedius Norman, 1933 -- invalid
  Etropus microstomus (Gill, 1864) -- valid -- smallmouth flounder, Smallmouth Flounder
  Etrumeus Bleeker, 1853 -- valid
  Etrumeus acuminatus Gilbert, 1890 -- invalid
  Etrumeus micropus (Temminck and Schlegel, 1846) -- valid
  Etrumeus teres (DeKay, 1842) -- valid -- round herring, sardina japonesa, sardina canalera, red-eye round herring, Maray, Atlantic red herring
  Etrumeus whiteheadi Wongratana, 1983 -- valid -- Whitehead's round herring
  Euchalarodus Gill, 1864 -- invalid
  Euchalarodus putnami Gill, 1864 -- invalid
  Euchilichthys Boulenger, 1900 -- valid
  Euchilichthys boulengeri Nichols and La Monte, 1934 -- valid
  Euchiloglanis Regan, 1907 -- valid
  Euchiloglanis davidi (Sauvage, 1874) -- valid
  Eucinostomus Baird and Girard in Baird, 1855 -- valid -- mojarras, mojarritas, mojarras, mojarritas, shortspine mojarras
  Eucitharus Gill, 1889 -- invalid
  Euclichthys McCulloch, 1926 -- valid
  Euclichthys polynemus McCulloch, 1926 -- valid
  Eucrossorhinus Regan, 1908 -- valid
  Eucrossorhinus dasypogon (Bleeker, 1867) -- valid -- tasselled wobbegong
  Eucryphycus Anderson, 1988 -- valid
  Eugaleus Gill, 1864 -- invalid
  Eugaleus hyugaensis Miyosi, 1939 -- invalid
  Eugaleus omanensis Norman, 1939 -- invalid
  Eugerres Jordan and Evermann, 1927 -- valid
  Eugnathichthys Boulenger, 1898 -- valid
  Eugnathichthys eetveldii Boulenger, 1898 -- valid
  Eugomphodus griseus (Ayres, 1843) -- invalid
  Eugomphodus taurus (Rafinesque, 1810) -- invalid -- sand tiger shark
  Euhypsocara Gill, 1863 -- invalid
  Eulamia Gill, 1862 -- invalid
  Eulamia ahenea Stead, 1938 -- invalid
  Eulamia altima Springer, 1950 -- invalid
  Eulamia malpeloensis Fowler, 1944 -- invalid
  Eulamia nicaraguensis Gill in Gill and Bransford, 1877 -- invalid
  Eulamia odontaspis Fowler, 1908 -- invalid
  Eulamia springeri Bigelow and Schroeder, 1944 -- invalid
  Euleptorhamphus Gill, 1859 -- valid
  Eumecichthys Regan, 1907 -- valid
  Eumegistus Jordan and Jordan, 1922 -- valid
  Eumicrotremus Gill, 1862 -- valid
  Eunarce Fowler, 1910 -- invalid
  Eupallasella perenurus (Pallas, 1814) -- invalid
  Eupemis Swainson, 1839 -- invalid
  Eupetrichthys Ramsay and Ogilby, 1888 -- valid
  Euprotomicroides zantedeschia Hulley and Penrith, 1966 -- valid -- taillight shark
  Euprotomicrus Gill, 1865 -- valid
  Euprotomicrus bispinatus (Quoy and Gaimard, 1824) -- valid -- tiburón pigmeo, pygmy shark
  Euprotomicrus labordii (Müller and Henle, 1839) -- invalid
  Euristhmus Ogilby, 1899 -- valid
  Euristhmus lepturus (Günther, 1864) -- valid -- longtailed catfish
  Euristhmus microceps (Richardson, 1845) -- valid
  Euryglossa Kaup, 1858 -- invalid
  Euryglossa orientalis (Bloch & Schneider, 1801) -- invalid
  Eurymen Gilbert and Burke, 1912 -- valid
  Eurypegasus Bleeker, 1863 -- valid
  Eurypharynx Vaillant, 1882 -- valid
  Eurypharynx pelecanoides Vaillant, 1882 -- valid -- pelican gulper, pelican gulper eel, gulper eel
  Eurypleuron Markle and Olney, 1990 -- valid
  Eurypleuron owasianum (Matsubara, 1953) -- valid
  Eurystole Jordan and Evermann in Jordan, 1895 -- invalid
  Euscarus Jordan and Evermann, 1896 -- invalid
  Eusphyra blochii (Cuvier, 1816) -- valid -- winghead shark
  Eustomias Vaillant in Filhol, 1884 -- valid
  Eutaeniophorus festivus (Bertelsen and Marshall, 1956) -- valid
  Eutrigla Fraser-Brunner, 1938 -- valid
  Eutropiellus Nichols and La Monte, 1933 -- invalid
  Eutropiellus debauwi (Boulenger, 1900) -- invalid -- African glass catfish
  Eutropiichthys Bleeker, 1862 -- valid
  Eutropiichthys vacha (Hamilton, 1822) -- valid
  Eutropius Müller and Troschel, 1849 -- invalid
  Eutropius debauwi Boulenger, 1900 -- invalid
  Euxiphipops Fraser-Brunner, 1934 -- invalid
  Evenchelys Jordan and Evermann, 1902 -- invalid
  Evermanniana Taranetz, 1935 -- invalid
  Exilichthys Whitley, 1933 -- invalid
  Exilichthys nudiceps (Günther, 1880) -- invalid -- nettlefish
  Eximia Greeley, 1899 -- invalid
  Exocoetus Linnaeus, 1758 -- valid -- flyingfishes
  Exodon Müller and Troschel, 1844 -- valid
  Exodon paradoxus Müller and Troschel, 1844 -- valid -- bucktoothed tetra, bucktoothed tetra
  Exoglossum Rafinesque, 1818 -- valid -- cutlips minnows
  Exoglossum laurae (Hubbs, 1931) -- valid -- Tonguetied Minnow
  Exoglossum maxillingua (Lesueur, 1817) -- valid -- cutlips minnow, Cutlip Minnow, bec-de-lièvre
  Exonautes Jordan and Evermann, 1896 -- invalid
  Exostoma Blyth, 1860 -- valid
  Exostoma berdmorei Blyth, 1860 -- valid
  Facciolella Whitley, 1938 -- valid
  Facciolella castlei Parin and Karmovskaya, 1985 -- valid
  Facciolella equatorialis (Gilbert, 1891) -- valid -- dogface witch eel, serpentina bruja
  Facciolella gilberti (Garman, 1899) -- invalid -- dogface witch-eel
  Facciolella karreri Klausewitz, 1995 -- valid
  Facciolella oxyrhyncha (Bellotti, 1883) -- valid
  Facciolella physonema (Facciolà, 1914) -- invalid
  Facciolella saurencheloides (D'Ancona, 1928) -- valid
  Farlowella Eigenmann and Eigenmann, 1889 -- valid
  Farlowella acus (Kner, 1853) -- valid
  Farlowella gracilis Regan, 1904 -- valid
  Favonigobius reichei (Bleeker, 1853) -- valid -- tropical sand goby
  Festucalex Whitley, 1931 -- valid
  Figaro Whitley, 1928 -- invalid
  Figaro boardmani (Whitley, 1928) -- invalid
  Filimanus Myers, 1936 -- valid
  Fimbriotorpedo Fritsch, 1884 -- invalid
  Fissilabrus Kner, 1860 -- invalid
  Fistularia Linnaeus, 1758 -- valid
  Flagellostomias Parr, 1927 -- valid
  Florenciella Mead and De Falla, 1965 -- valid
  Floridichthys Hubbs, 1926 -- valid -- goldspotted killifishes
  Fluviphylax Whitley, 1965 -- valid
  Foa Jordan and Evermann in Jordan and Seale, 1905 -- valid
  Fodiator Jordan and Meek, 1885 -- valid
  Foerschichthys Scheel and Romand, 1981 -- valid
  Foerschichthys flavipinnis (Meinken, 1932) -- valid -- Tufi
  Foetorepus calauropomus (Richardson, 1844) -- valid -- mottled dragonet
  Fowlerella Smith, 1957 -- invalid
  Fowleria Jordan and Evermann, 1903 -- valid
  Fowleria aurita (Valenciennes in Cuvier and Valenciennes, 1831) -- valid -- crosseyed cardinal, crosseyed cardinal
  Fowleria variegata (Valenciennes, 1832) -- valid
  Fraudella Whitley, 1935 -- valid
  Freemanichthys Kanayama, 1991 -- valid
  Frontilabrus Randall and Condé, 1989 -- valid
  Fundulidae Jordan and Gilbert, 1882 -- valid -- fundulines, fondules, sardinillas, killifishes, topminnows
  Fundulopanchax Myers, 1924 -- valid
  Fundulosoma Ahl, 1924 -- invalid
  Fundulus Lacepède, 1803 -- valid -- topminnows
  Fur Whitley, 1943 -- invalid
  Fur macki Whitley, 1943 -- invalid
  Fur ventralis Whitley, 1943 -- invalid
  Furcina Jordan and Starks, 1904 -- valid
  Gadella Lowe, 1843 -- valid
  Gadiculus Guichenot, 1850 -- valid -- silvery pouts
  Gadinae -- valid -- cods, haddock
  Gadomus Regan, 1903 -- valid
  Gadus Linnaeus, 1758 -- valid -- common codfishes
  Gagata Bleeker, 1858 -- valid
  Gagata youssoufi Ataur Rahman, 1976 -- valid
  Gaidropsarus Rafinesque, 1810 -- valid -- three-bearded rocklings
  Galaxias Cuvier, 1816 -- valid -- galaxiids
  Galaxiella McDowall, 1978 -- valid
  Galeichthys Valenciennes in Cuvier and Valenciennes, 1840 -- valid
  Galeichthys feliceps Valenciennes in Cuvier and Valenciennes, 1840 -- valid
  Galeocerdo cuvier (Péron and Lesueur in Lesueur, 1822) -- valid -- tintorera, tiger shark, tiburón tigre
  Galeocerdo obtusus Klunzinger, 1871 -- invalid
  Galeocerdo rayneri MacDonald and Barron, 1868 -- invalid
  Galeocerdo tigrinus Müller and Henle, 1839 -- invalid
  Galeoides Günther, 1860 -- valid
  Galeolamna Owen, 1853 -- invalid
  Galeolamna bogimba Whitley, 1943 -- invalid
  Galeolamna coongoola Whitley, 1964 -- invalid
  Galeolamna dorsalis Whitley, 1944 -- invalid
  Galeolamna eblis Whitley, 1944 -- invalid
  Galeolamna fitzroyensis Whitley, 1943 -- invalid
  Galeolamna fowleri Whitley, 1944 -- invalid
  Galeolamna greyi mckaili Whitley, 1945 -- invalid
  Galeolamna isobel Whitley, 1947 -- invalid
  Galeolamna pleurotaenia tilstoni Whitley, 1950 -- invalid
  Galeolamna stevensi (Ogilby, 1911) -- invalid
  Galeolamna tufiensis Whitley, 1949 -- invalid
  Galeorhinus galeus (Linnaeus, 1758) -- valid -- tiburón aceitoso, tope, tope shark
  Galeorhinus vitaminicus de Buen, 1950 -- invalid
  Galeorhinus zyopterus Jordan and Gilbert, 1883 -- invalid -- soupfin shark
  Galeus Rafinesque, 1810 -- valid -- sawtail cat sharks
  Galeus arae (Nichols, 1927) -- valid -- marbled cat shark, gatica manchada, marbled catshark, roughtail cat shark, roughtail catshark
  Galeus arae antillensis Springer, 1979 -- invalid
  Galeus boardmani (Whitley, 1928) -- valid -- Australian sawtail catshark
  Galeus cadenati Springer, 1966 -- valid -- longfin sawtail cat shark
  Galeus cepedianus Agassiz, 1838 -- invalid
  Galeus eastmani (Jordan and Snyder, 1904) -- valid -- gecko catshark
  Galeus japanicus Müller and Henle, 1839 -- invalid
  Galeus maculatus Ranzani, 1839 -- invalid
  Galeus melastomus Rafinesque, 1810 -- valid -- blackmouth catshark
  Galeus molinae Philippi, 1887 -- invalid
  Galeus murinus (Collett, 1904) -- valid
  Galeus nipponensis Nakaya, 1975 -- valid -- broadfin sawtail catshark
  Galeus piperatus Springer and Wagner, 1966 -- valid -- peppered catshark
  Galeus polli Cadenat, 1959 -- valid -- African sawtail catshark
  Galeus sauteri (Jordan and Richardson, 1909) -- valid -- blacktip sawtail catshark
  Galeus schultzi Springer, 1979 -- valid -- dwarf sawtail catshark
  Gambusia Poey, 1854 -- valid -- topminnmows, gambusias
  Gargariscus Smith, 1917 -- valid
  Garra Hamilton, 1822 -- valid
  Garra annandalei Hora, 1921 -- valid
  Garra mullya (Sykes, 1839) -- valid
  Gasteropelecus Scopoli, 1777 -- valid
  Gasteropelecus coronatus Allen, W. R., in Eigenmann and Allen, 1942 -- invalid
  Gasteropelecus levis (Eigenmann, 1909) -- valid -- silver hatchetfish, silver hatchetfish
  Gasteropelecus maculatus Steindachner, 1879 -- valid
  Gasteropelecus securis De Filippi, 1853 -- invalid
  Gasteropelecus stellatus Kner, 1858 -- invalid
  Gasteropelecus sternicla (Linnaeus, 1758) -- valid -- common hatchetfish, common hatchetfish
  Gasteropelecus strigatus Günther, 1864 -- invalid
  Gasteropelecus vesca (Fraser-Brunner, 1950) -- invalid
  Gasterotomus Eigenmann, 1910 -- invalid
  Gastromyzon Günther, 1874 -- valid
  Gastromyzon borneensis Günther, 1874 -- valid
  Gastromyzon fasciatus Inger and Chin, 1961 -- valid
  Gastropsetta Bean, 1895 -- valid
  Gastropsetta frontalis Bean, 1895 -- valid -- shrimp flounder, lenguado gambero, Shrimp Flounder
  Gavialiceps Alcock, 1889 -- valid
  Gavialiceps bertelseni Karmovskaya, 1993 -- valid
  Gavialiceps javanicus Karmovskaya, 1993 -- valid
  Gavialiceps taeniola Alcock, 1889 -- valid
  Gavialiceps taiwanensis (Chen and Weng, 1967) -- valid
  Gazza Rüppell, 1835 -- valid
  Genicanthus Swainson, 1839 -- valid
  Genidens Castelnau, 1855 -- valid
  Genidens genidens (Cuvier, 1829) -- valid
  Genyomyrus Boulenger, 1898 -- valid
  Genyomyrus donnyi Boulenger, 1898 -- valid
  Genyonemus Gill, 1861 -- valid
  Genypterus Philippi, 1857 -- valid
  Geophagus brasiliensis (Quoy and Gaimard, 1824) -- valid -- pearl eartheater, pearl cichlid
  Gephyroberyx Boulenger, 1902 -- valid
  Gephyrocharax Eigenmann, 1912 -- valid
  Gephyroglanis Boulenger, 1899 -- valid
  Gephyroglanis congicus Boulenger, 1899 -- valid
  Gerres Quoy and Gaimard, 1824 -- valid -- yellowfin mojarras
  Gerres poeti Cuvier, 1829 -- invalid -- strongspined pursemouth, strongspined pursemouth
  Gibberichthys Parr, 1933 -- valid
  Gibberichthys pumilis Parr, 1933 -- invalid
  Gibelion Heckel, 1843 -- valid
  Gigantactis Brauer, 1902 -- valid
  Giganthias Katayama, 1954 -- valid
  Gila Baird and Girard, 1853 -- valid -- western chubs
  Gila alvordensis Hubbs and Miller, 1972 -- invalid -- Alvord chub
  Gila atraria (Girard, 1856) -- valid -- Utah Chub
  Gila bicolor bicolor (Girard, 1856) -- invalid
  Gila bicolor snyderi Miller, 1973 -- invalid -- Owens Tui Chub
  Gila bicolor vaccaceps Bills and Bond, 1980 -- invalid -- Cow Head Tui Chub
  Gila copei (Jordan and Gilbert, 1881) -- invalid -- leatherside chub
  Gila orcutti (Eigenmann and Eigenmann, 1890) -- invalid -- arroyo chub
  Gila robusta intermedia (Girard, 1856) -- invalid
  Gila robusta jordani Tanner, 1950 -- invalid -- Pahranagut bonytail, Pahranagut roundtail chub
  Gila robusta robusta Baird and Girard, 1853 -- invalid
  Gilbertidia Berg, 1898 -- valid
  Gilchristella Fowler, 1935 -- valid
  Gilchristella aestuaria (Gilchrist, 1913) -- valid -- Gilchrist's round herring
  Gillisqualus Whitley, 1934 -- invalid
  Gillisqualus amblyrhynchoides Whitley, 1934 -- invalid
  Ginglymostoma Müller and Henle, 1837 -- valid
  Ginglymostoma brevicaudatum Günther in Playfair and Günther, 1867 -- invalid -- short-tail nurse shark
  Ginglymostoma cirratum (Bonnaterre, 1788) -- valid -- nurse shark, tiburón gata
  Ginglymostoma ferrugineum (Lesson, 1831) -- invalid
  Girardinichthys Bleeker, 1860 -- valid
  Girardinus Poey, 1854 -- valid
  Giton Kaup in Duméril, 1856 -- invalid
  Giton fasciatus (Pallas, 1769) -- invalid
  Glanapteryx Myers, 1927 -- valid
  Glandulocauda Eigenmann, 1911 -- valid
  Glandulocauda melanogenys Eigenmann, 1911 -- valid
  Glandulocauda melanopleura Eigenmann, 1911 -- valid
  Glanidium Lütken, 1874 -- valid
  Glaniopsis Boulenger, 1899 -- valid
  Glaniopsis denudata Roberts, 1982 -- valid
  Glaniopsis multiradiata Roberts, 1982 -- valid
  Glaphyropoma de Pinna, 1992 -- valid
  Glenoglossa McCosker, 1982 -- valid
  Glenoglossa wassi McCosker, 1982 -- valid
  Glossamia Gill, 1863 -- valid
  Glossanodon Guichenot, 1867 -- valid
  Glossanodon semifasciata (Kishinouye, 1904) -- invalid
  Glossolepis Weber, 1907 -- valid
  Glyphis Agassiz, 1843 -- valid -- river sharks
  Glyphis gangeticus (Müller and Henle, 1839) -- valid -- Ganges shark
  Glyphis glyphis (Müller and Henle, 1839) -- valid -- speartooth shark
  Glyphisodon albofasciatus Hombron and Jacquinot in Jacquinot and Guichenot, 1853 -- invalid
  Glyphisodon bankieri Richardson, 1846 -- invalid
  Glyphisodon biocellatus Quoy and Gaimard, 1825 -- invalid
  Glyptocephalus Gottsche, 1835 -- valid -- flukes
  Glyptocephalus cynoglossus (Linnaeus, 1758) -- valid -- witch flounder, gray sole, plie grise, Witch Flounder
  Glyptocephalus pacificus Lockington, 1879 -- invalid
  Glyptocephalus stelleri (Schmidt, 1904) -- valid -- blackfin flounder, hireguro
  Glyptocephalus zachirus Lockington, 1879 -- valid -- platija rey, rex sole, plie royale, Rex Sole
  Glyptoperichthys Weber, 1991 -- valid
  Glyptoperichthys gibbiceps (Kner, 1854) -- valid
  Glyptophidium Alcock, 1889 -- valid
  Glyptothorax Blyth, 1860 -- valid
  Glyptothorax anamalaiensis Silas, 1951 -- invalid
  Gnathanacanthus Bleeker, 1855 -- valid
  Gnathocharax Fowler, 1913 -- valid
  Gnathocharax steindachneri Fowler, 1913 -- valid
  Gnathodentex Bleeker, 1873 -- valid
  Gnathodolus Myers, 1927 -- valid
  Gnathodolus bidens Myers, 1927 -- valid
  Gnatholepis cauerensis (Bleeker, 1853) -- valid
  Gnathonemus Gill, 1863 -- valid
  Gnathonemus barbatus Poll, 1967 -- valid
  Gnathonemus brevicaudatus Pellegrin, 1919 -- invalid
  Gnathonemus echidnorhynchus Pellegrin, 1924 -- valid
  Gnathonemus elephas Boulenger, 1898 -- invalid -- elephant-trunk mormyrid, elephant-trunk mormyrid
  Gnathonemus lambouri Pellegrin, 1904 -- invalid
  Gnathonemus longibarbis (Hilgendorf, 1888) -- valid
  Gnathonemus petersii (Günther, 1862) -- valid -- elephantnose fish, Peter's elephantnose, Ubangi mormyrid
  Gnathophis Kaup, 1860 -- valid
  Gnathophis andriashevi Karmovskaya, 1990 -- valid
  Gnathophis bathytopos Smith and Kanazawa, 1977 -- valid -- blackgut conger
  Gnathophis bracheatopos Smith and Kanazawa, 1977 -- valid -- longeye conger
  Gnathophis capensis (Kaup, 1856) -- valid
  Gnathophis catalinensis (Wade, 1946) -- invalid -- Catalina conger
  Gnathophis cinctus (Garman, 1899) -- valid -- hardtail conger, congrio cola tiesa
  Gnathophis codoniphorus Maul, 1972 -- valid
  Gnathophis habenatus (Richardson, 1848) -- valid
  Gnathophis heterognathos (Bleeker, 1858-59) -- valid
  Gnathophis heterolinea (Kotthaus, 1968) -- valid
  Gnathophis longicauda (Ramsay and Ogilby, 1888) -- valid
  Gnathophis musteliceps (Alcock, 1894) -- valid
  Gnathophis mystax (Delaroche, 1809) -- valid
  Gnathophis smithi Karmovskaya, 1990 -- valid
  Gnathophis tritos Smith and Kanazawa, 1977 -- valid
  Gnathophis umbrellabius (Whitley, 1946) -- valid
  Gnathophis xenica (Matsubara and Ochiai, 1951) -- valid
  Gnathopogon Bleeker, 1860 -- valid
  Gnathopogon atromaculatus Nichols and Pope, 1927 -- invalid
  Gnathopogon coerulescens (Sauvage, 1883) -- invalid
  Gnathopogon elongatus (Temminck and Schlegel, 1846) -- valid
  Gobio Cuvier, 1816 -- valid
  Gobio albipinnatus Lukasch, 1933 -- invalid
  Gobiobotia Kreyenberg, 1911 -- valid
  Gobiobotia boulengeri Tchang, 1929 -- invalid
  Gobiopsis Steindachner, 1861 -- valid -- dragonface gobies
  Gobiopsis macrostoma Steindachner, 1861 -- valid -- snakehead goby, snakehead goby
  Gobiopsis pinto (Smith, 1947) -- valid
  Gobiopterus Bleeker, 1874 -- valid
  Gobiopterus chuno (Hamilton, 1822) -- valid -- glass goby, glass goby
  Gobiosoma Girard, 1858 -- valid -- naked gobies
  Gobiosoma etheostoma (Jordan and Starks in Jordan, 1895) -- invalid
  Gobitrichinotus Fowler, 1943 -- valid
  Gobitrichinotus radiocularis Fowler, 1943 -- valid
  Gobius quadrimaculatus Valenciennes in Cuvier and Valenciennes, 1837 -- invalid
  Gobiusculus Duncker, 1928 -- valid
  Gobiusculus flavescens (Fabricius, 1779) -- valid -- twospotted goby, twospotted goby
  Gogolia Compagno, 1973 -- valid
  Gogolia filewoodi Compagno, 1973 -- valid -- sailback houndshark
  Gollum Compagno, 1973 -- valid
  Gollum attenuatus (Garrick, 1954) -- valid -- slender smooth-hound
  Gomphosus Lacépède, 1801 -- valid -- bird fishes, bird wrasses
  Gonialosa Regan, 1917 -- valid
  Gonialosa manmina (Hamilton, 1822) -- valid -- Ganges gizzard shad, Ganges river gizzard shad
  Gonialosa modesta (Day, 1870) -- valid -- Burmese river gizzard shad
  Gonialosa whiteheadi Wongratana, 1983 -- valid -- southern Burmese river gizzard shad
  Gonichthys Gistel, 1850 -- valid
  Gonioplectrus Gill, 1862 -- valid
  Gonochaetodon Bleeker, 1876 -- invalid
  Gonorhynchiformes -- invalid -- milkfish, shellears
  Gonorhynchus gonorhynchus (Linnaeus, 1766) -- invalid -- sandfish, sandfish
  Gonostoma Rafinesque, 1810 -- valid
  Goodea Jordan, 1880 -- valid
  Gorgasia Meek and Hildebrand, 1923 -- valid
  Gorgasia maculata Klausewitz and Eibl-Eibesfeldt, 1959 -- valid
  Gracila Randall, 1964 -- valid
  Gramma Poey, 1868 -- valid
  Grammatobothus Norman, 1926 -- valid
  Grammatobothus polyophthalmus (Bleeker, 1865) -- valid -- threespot flounder
  Grammatonotus Gilbert, 1905 -- valid
  Grammatostomias Goode and Bean, 1896 -- valid
  Grammicolepididae Poey, 1873 -- valid -- diamond dories, dwarf dories, grammicolepidids, scaly dories, tinselfishes
  Grammicolepis Poey, 1873 -- valid
  Grammistes Bloch and Schneider, 1801 -- valid
  Grammistops Schultz in Schultz et al., 1953 -- valid
  Grammoplites Fowler, 1904 -- valid
  Grasseichthys Géry, 1964 -- valid
  Grasseichthys gabonensis Géry, 1964 -- valid
  Greeleya Jordan, 1920 -- invalid
  Gudusia Fowler, 1911 -- valid
  Gudusia chapra (Hamilton, 1822) -- valid -- Indian river shad
  Gudusia variegata (Day, 1870) -- valid -- Burmese river shad
  Guentheria Bleeker, 1862 -- invalid
  Guentherus Osório, 1917 -- valid
  Gulaphallinae -- invalid
  Gulaphallus Herre, 1925 -- valid
  Gunterichthys Dawson, 1966 -- valid
  Gurgesiella atlantica (Bigelow and Schroeder, 1962) -- valid
  Gurgesiella dorsalifera McEachran and Campagno, 1980 -- valid
  Gurgesiella furvescens de Buen, 1959 -- valid
  Gymnachirus Kaup, 1858 -- valid
  Gymnachirus nudus Kaup, 1858 -- valid -- acedía nudosa, flabby sole, suela fofa, Flabby Sole
  Gymnallabes Günther, 1867 -- valid
  Gymnallabes nops Roberts and Stewart, 1976 -- valid
  Gymnapogon Regan, 1905 -- valid
  Gymnarchus Cuvier, 1829 -- valid
  Gymnarchus niloticus Cuvier, 1829 -- valid -- aba
  Gymnocaesio Bleeker, 1876 -- valid
  Gymnocanthus Swainson, 1839 -- valid
  Gymnocephalus Bloch, 1793 -- valid -- European ruffes
  Gymnochanda Fraser-Brunner, 1955 -- valid
  Gymnocorymbus Eigenmann, 1908 -- valid
  Gymnocorymbus thayeri Eigenmann, 1908 -- valid -- black tetra, black tetra
  Gymnomuraena Lacepède, 1803 -- valid
  Gymnomuraena zebra (Shaw in Shaw and Nodder, 1797) -- valid -- zebra moray, morena cebra
  Gymnopropoma Gill, 1863 -- invalid
  Gymnorhamphichthys Ellis in Eigenmann, 1912 -- valid
  Gymnoscopelus Günther, 1873 -- valid
  Gymnothorax albomaculatus Bliss, 1883 -- invalid
  Gymnothorax angusticauda (Weber and de Beaufort, 1916) -- valid
  Gymnothorax angusticeps (Hildebrand and Barton, 1949) -- valid
  Gymnothorax annasona Whitley, 1937 -- valid
  Gymnothorax annulatus Smith and Böhlke, 1997 -- valid
  Gymnothorax australicola Lavenberg, 1992 -- valid
  Gymnothorax bacalladoi Böhlke and Brito, 1987 -- valid
  Gymnothorax bathyphilus Randall and McCosker, 1975 -- valid
  Gymnothorax berndti Snyder, 1904 -- valid
  Gymnothorax boschii (Bleeker, 1853) -- invalid
  Gymnothorax breedeni McCosker and Randall, 1977 -- valid
  Gymnothorax buroensis (Bleeker, 1857) -- valid -- latticetail moray
  Gymnothorax castaneus (Jordan and Gilbert, 1883) -- valid -- Panamic green moray, morena verde panámica
  Gymnothorax chilospilus Bleeker, 1865 -- valid
  Gymnothorax chlamydatus Snyder, 1908 -- valid
  Gymnothorax conspersus Poey, 1867 -- valid -- saddled moray
  Gymnothorax detactus Bryan and Herre, 1903 -- invalid
  Gymnothorax dorsalis Seale, 1917 -- valid
  Gymnothorax dovii (Günther, 1870) -- valid -- finespotted moray, morena pintita
  Gymnothorax enigmaticus McCosker and Randall, 1982 -- valid
  Gymnothorax equatorialis (Hildebrand, 1946) -- valid -- spottail moray, morena cola pintada
  Gymnothorax eurostus (Abbott, 1860) -- valid
  Gymnothorax favagineus Bloch and Schneider, 1801 -- valid
  Gymnothorax fimbriatus (Bennett, 1832) -- valid -- darkspotted moray
  Gymnothorax flavimarginatus (Rüppell, 1830) -- valid -- yellowedged moray
  Gymnothorax formosus Bleeker, 1865 -- valid
  Gymnothorax funebris Ranzani, 1839 -- valid -- green moray, morena verde
  Gymnothorax fuscomaculatus (Schultz in Schultz, Herald, Lachner, Welander and Woods, 1953) -- valid
  Gymnothorax goldsboroughi Jordan and Evermann, 1903 -- invalid
  Gymnothorax gracilicaudus Jenkins, 1903 -- invalid
  Gymnothorax hepaticus (Rüppell, 1830) -- valid
  Gymnothorax herrei Beebe and Tee-van, 1933 -- valid
  Gymnothorax hilonis Jordan and Evermann, 1903 -- invalid -- black moray
  Gymnothorax hubbsi Böhlke and Böhlke, 1977 -- valid -- lichen moray, morena liquen
  Gymnothorax insignis Seale, 1917 -- invalid
  Gymnothorax intesi (Fourmanoir and Rivaton, 1979) -- valid
  Gymnothorax isingteena (Richardson, 1845) -- valid
  Gymnothorax javanicus (Bleeker, 1859) -- valid
  Gymnothorax johnsoni (Smith, 1962) -- valid
  Gymnothorax kidako (Temminck and Schlegel, 1846) -- valid
  Gymnothorax kolpos Böhlke and Böhlke, 1980 -- valid -- blacktail moray, morena cola negra
  Gymnothorax leucostigma Jordan and Richardson, 1909 -- invalid
  Gymnothorax longinquus (Whitley, 1948) -- valid
  Gymnothorax madeirensis (Johnson, 1862) -- invalid -- sharktooth moray
  Gymnothorax maderensis (Johnson, 1862) -- valid -- sharktooth moray
  Gymnothorax makassariensis Bleeker, 1863 -- invalid
  Gymnothorax margaritophorus Bleeker, 1865 -- valid -- turnkeyed moray
  Gymnothorax marshallensis (Schultz in Schultz, Herald, Lachner, Welander and Woods, 1953) -- valid
  Gymnothorax mccoskeri Smith and Böhlke, 1997 -- valid
  Gymnothorax melatremus Schultz in Schultz, Herald, Lachner, Welander and Woods, 1953 -- valid
  Gymnothorax meleagris (Shaw in Shaw and Nodder, 1795) -- valid -- puhi 'oni'o, guineafowl moray, spotted moray
  Gymnothorax microspila (Günther, 1870) -- invalid
  Gymnothorax mieroszewskii (Steindachner, 1896) -- invalid
  Gymnothorax miliaris (Kaup, 1856) -- valid -- goldentail moray, morena de cola dorada, morena cola dorada, conger moray
  Gymnothorax mindanoensis Borodin, 1930 -- invalid
  Gymnothorax minor (Temminck and Schlegel, 1846) -- valid
  Gymnothorax moluccensis (Bleeker, 1865) -- valid
  Gymnothorax mordax (Ayres, 1859) -- valid -- California moray, morena de California
  Gymnothorax moringa (Cuvier, 1829) -- valid -- spotted moray, morena manchada
  Gymnothorax mucifer Snyder, 1904 -- invalid
  Gymnothorax neglectus Tanaka, 1911 -- valid
  Gymnothorax nigromarginatus (Girard, 1858) -- valid -- blackedge moray, morena de margen negro
  Gymnothorax niphostigmus Chen, Shao and Chen, 1996 -- valid
  Gymnothorax nirosus Tanaka, 1918 -- invalid
  Gymnothorax nubilus (Richardson, 1848) -- valid
  Gymnothorax nudivomer (Günther in Playfair and Günther, 1867) -- valid -- starry moray
  Gymnothorax nuttingi Snyder, 1904 -- valid
  Gymnothorax obesus (Whitley, 1932) -- valid
  Gymnothorax ocellatus Agassiz in Spix and Agassiz, 1831 -- valid -- Caribbean ocellated moray, moray eel, morena ocelada, spotted moray, ocellated moray
  Gymnothorax odiosus Snyder, 1908 -- invalid
  Gymnothorax parini Collette, Smith and Böhlke, 1991 -- valid
  Gymnothorax pescadoris Jordan and Evermann, 1902 -- invalid
  Gymnothorax phasmatodes (Smith, 1962) -- valid
  Gymnothorax philippinus Jordan and Seale, 1907 -- valid
  Gymnothorax pictus (Ahl, 1789) -- valid -- painted moray, painted reef eel
  Gymnothorax pikei Bliss, 1883 -- valid
  Gymnothorax pindae Smith, 1962 -- valid
  Gymnothorax polygonius Poey, 1875 -- valid -- reticulated moray eel, polygon moray, morena de polígonos, morena polígona
  Gymnothorax polyuranodon (Bleeker, 1853) -- valid -- freshwater moray
  Gymnothorax porphyreus (Guichenot, 1848) -- valid
  Gymnothorax prasinus (Richardson, 1848) -- valid
  Gymnothorax prionodon Ogilby, 1895 -- valid
  Gymnothorax prolatus Sasaki and Amaoka, 1991 -- valid
  Gymnothorax pseudothyrsoideus (Bleeker, 1852) -- valid
  Gymnothorax punctatofasciatus Bleeker, 1863 -- valid
  Gymnothorax punctatus Bloch and Schneider, 1801 -- valid
  Gymnothorax randalli Smith and Böhlke, 1997 -- valid
  Gymnothorax reevesii (Richardson, 1845) -- valid
  Gymnothorax reticularis Bloch, 1795 -- valid
  Gymnothorax robinsi Böhlke, 1997 -- valid
  Gymnothorax rueppelliae (McClelland, 1844) -- invalid
  Gymnothorax sagmacephalus Böhlke, 1997 -- valid
  Gymnothorax saxicola Jordan and Davis, 1891 -- valid -- honeycomb moray, ocellated moray, morena punteada, morena panal
  Gymnothorax serratidens (Hildebrand and Barton, 1949) -- valid
  Gymnothorax signifer Bliss, 1883 -- invalid
  Gymnothorax sokotrensis Kotthaus, 1968 -- valid
  Gymnothorax steindachneri Jordan and Evermann, 1903 -- valid
  Gymnothorax stigmanotus Fowler, 1912 -- invalid
  Gymnothorax thyrsoideus (Richardson, 1845) -- valid -- slender moray
  Gymnothorax tile (Hamilton, 1822) -- valid
  Gymnothorax undulatus (Lacepède, 1803) -- valid -- nami-utsubo, common Hawaiian moray, leopard moray
  Gymnothorax unicolor (Delaroche, 1809) -- valid
  Gymnothorax verrilli (Jordan and Gilbert, 1883) -- valid -- white-edged moray, morena de borde blanco
  Gymnothorax vicinus (Castelnau, 1855) -- valid -- purplemouth moray, morena de boca púrpura, morena amarilla
  Gymnothorax wakanourae Tanaka, 1908 -- invalid
  Gymnothorax woodwardi McCulloch, 1912 -- valid
  Gymnothorax wooliensis (Whitley, 1968) -- invalid
  Gymnothorax xanthostomus Snyder, 1904 -- invalid
  Gymnothorax zebra Shaw in Shaw and Nodder, 1797 -- invalid
  Gymnotus Linnaeus, 1758 -- valid
  Gymnotus brachiurus Bloch, 1786 -- invalid
  Gymnotus carapo Linnaeus, 1758 -- valid -- banded knifefish, gymnotid eel, banded knifefish, gymnotid eel
  Gymnotus electricus Linnaeus, 1766 -- invalid
  Gymnotus fasciatus Pallas, 1769 -- invalid
  Gymnotus inaequilabiatus (Valenciennes, 1842) -- valid
  Gymnotus putaol Lacepède, 1800 -- invalid
  Gymnotus regius Chiaje, 1847 -- invalid
  Gymnura altavela (Linnaeus, 1758) -- valid -- raya de papel, spiny butterfly ray
  Gymnura australis (Ramsay and Ogilby, 1886) -- valid
  Gymnura bimaculata (Norman, 1925) -- valid
  Gymnura crebripunctata (Peters, 1869) -- valid -- longsnout butterfly ray, raya mariposa picuda
  Gymnura hirundo (Lowe, 1843) -- valid
  Gymnura japonica (Temminck and Schlegel, 1850) -- valid
  Gymnura marmorata (Cooper, 1864) -- valid -- raya mariposa californiana, California butterfly ray
  Gymnura micrura (Bloch and Schneider, 1801) -- valid -- raya cola de rata, smooth butterfly ray
  Gymnura natalensis (Gilchrist and Thompson, 1911) -- valid
  Gymnura poecilura (Shaw, 1804) -- valid
  Gymnura tentaculata (Müller and Henle, 1841) -- valid
  Gyrinocheilus Vaillant, 1902 -- valid
  Gyrinocheilus aymonieri (Tirant, 1883) -- valid -- Chinese algae-eater, Indian algae eater, Siamese algae-eater, Siamese headbreather, sucker loach, sucking loach
  Gyrinocheilus pennocki (Fowler, 1937) -- valid
  Gyrinocheilus pustulosus Vaillant, 1902 -- valid -- Borneo algae-eater, Borneo headbreather
  Gyrinomimus Parr, 1934 -- valid
  Gyrinomimus grahami Richardson and Garrick, 1964 -- valid
  Gyrinomimus myersi Parr, 1934 -- valid
  Gyrinomimus parri Bigelow, 1961 -- valid
  Gyrinomimus simplex Parr, 1946 -- invalid
  Gyropleurodus Gill, 1862 -- invalid
  Gyropleurodus ramalheira Smith, 1949 -- invalid
  Haemulon Cuvier, 1829 -- valid -- grunts, roncos, tomtates
  Halaelurus Gill, 1862 -- valid -- tiger cat sharks
  Halaelurus alcockii Garman, 1913 -- valid -- Arabian catshark
  Halaelurus boesemani Springer and D'Aubrey, 1972 -- valid -- speckled catshark
  Halaelurus buergeri (Müller and Henle, 1838) -- valid -- blackspotted catshark
  Halaelurus canescens (Günther, 1878) -- valid -- dusky catshark
  Halaelurus dawsoni Springer, 1971 -- valid -- New Zealand catshark
  Halaelurus garmani Fowler, 1934 -- invalid
  Halaelurus immaculatus Chu and Meng in Chu, Meng, Hu and Li, 1982 -- valid -- spotless catshark
  Halaelurus lineatus Bass, D'Aubrey and Kistnasamy, 1975 -- valid -- lined catshark
  Halaelurus lutarius Springer and D'Aubrey, 1972 -- valid -- mud catshark
  Halaelurus natalensis (Regan, 1904) -- valid -- tiger catshark
  Halaelurus quagga (Alcock, 1899) -- valid -- quagga catshark
  Halaelurus vincenti (Zietz, 1908) -- invalid
  Halargyreus Günther, 1862 -- valid
  Halicampus Kaup, 1856 -- valid
  Halichoeres Rüppell, 1835 -- valid -- wrasses
  Halichoeres hyrtlii (Bleeker, 1856) -- invalid -- Hyrtl's rainbowfish
  Halicmetus Alcock, 1891 -- valid
  Halidesmus Günther, 1872 -- valid
  Halieutea Valenciennes in Cuvier and Valenciennes, 1837 -- invalid
  Halieutichthys Poey in Gill, 1863 -- valid
  Halieutopsis Garman, 1899 -- valid
  Halieutopsis micropa (Alcock, 1891) -- valid -- lesser handfish
  Halimuraena Smith, 1952 -- valid
  Halimuraenoides Maugé and Bardach, 1985 -- valid
  Haliophis Rüppell, 1829 -- valid
  Halophryne Gill, 1863 -- valid
  Halosaurichthys Alcock, 1889 -- invalid
  Halosaurichthys carinicauda Alcock, 1889 -- invalid
  Halosauropsis Collett, 1896 -- valid
  Halosaurus Johnson, 1864 -- valid
  Halosaurus affinis Günther, 1877 -- invalid
  Halosaurus anguilliformis Alcock, 1889 -- invalid
  Halosaurus attenuatus Garman, 1899 -- valid
  Halosaurus carinicauda (Alcock, 1889) -- valid
  Halosaurus goodei Gill, 1883 -- invalid
  Halosaurus guentheri Goode and Bean, 1896 -- valid
  Halosaurus hoskynii Alcock, 1890 -- invalid
  Halosaurus johnsonianus Vaillant, 1888 -- valid
  Halosaurus macrochir Günther, 1878 -- invalid
  Halosaurus mediorostris Günther, 1887 -- invalid
  Halosaurus niger Gilchrist, 1906 -- invalid
  Halosaurus ovenii Johnson, 1864 -- valid
  Halosaurus parvipennis Alcock, 1892 -- invalid
  Halosaurus pectoralis McCulloch, 1926 -- valid
  Halosaurus phalacrus Vaillant, 1888 -- invalid
  Halosaurus radiatus Garman, 1899 -- valid
  Halosaurus ridgwayi (Fowler, 1934) -- valid
  Halosaurus rostratus Günther, 1878 -- invalid
  Hampala Kuhl and van Hasselt in van Hasselt, 1823 -- valid
  Hampala ampalong (Bleeker, 1852) -- valid
  Hampala bimaculata (Popta, 1905) -- valid
  Hampala dispar Smith, 1934 -- valid
  Hampala lopezi Herre, 1924 -- valid
  Hampala macrolepidota Kuhl and van Hasselt, 1823 -- valid
  Hampala salweenensis Doi and Taki, 1994 -- valid
  Haploblepharus Garman, 1913 -- valid -- shy sharks
  Haploblepharus edwardsii (Voigt, 1832) -- valid -- puffadder shyshark
  Haploblepharus fuscus Smith, 1950 -- valid -- brown shyshark
  Haploblepharus pictus (Müller and Henle, 1838) -- valid -- dark shyshark
  Haplochilus liberiensis Boulenger, 1908 -- invalid
  Haplochromis burtoni (Günther, 1894) -- invalid
  Haptenchelys Robins and Martin in Robins and Robins, 1976 -- valid
  Haptenchelys texis Robins and Martin in Robins and Robins, 1976 -- valid
  Hara Blyth, 1860 -- valid
  Hara horai Misra, 1976 -- valid
  Harengula Valenciennes in Cuvier and Valenciennes, 1847 -- valid -- scaly sardines
  Harengula clupeola (Cuvier, 1829) -- valid -- false pilchard, sardina escamuda, sardinita carapachona, false herring
  Harengula humeralis (Cuvier, 1829) -- valid -- redear sardine, sardinita de ley, redear herring, sardina de ley
  Harengula jaguana Poey, 1865 -- valid -- scaled sardine, sardinita vivita escamuda, sardina escamudina, scaled herring
  Harengula pensacolae Goode and Bean, 1879 -- invalid -- scaled sardine
  Harengula punctata Valenciennes in Cuvier and Valenciennes, 1847 -- invalid
  Harengula thrissina (Jordan and Gilbert, 1882) -- valid -- flatiron herring, sardinita plumilla, Pacific flatiron herring
  Harpe Lacépède, 1802 -- invalid
  Harriotta Goode and Bean, 1895 -- valid
  Harriotta haeckeli Karrer, 1972 -- valid
  Harriotta raleighana Goode and Bean, 1895 -- valid -- rat fish, long-nosed chimaera
  Harttia Steindachner, 1877 -- valid
  Hasemania Ellis, 1911 -- valid
  Hasemania marginata Meinken, 1938 -- invalid -- copper tetra, copper tetra
  Hassar Eigenmann and Eigenmann, 1888 -- valid
  Hassar iheringi Fowler, 1941 -- invalid
  Hatcheria Eigenmann, 1909 -- valid
  Heliases reticulatus Richardson, 1846 -- invalid
  Helicolenus Goode and Bean, 1896 -- valid
  Helicophagus Bleeker, 1857 -- valid
  Helicophagus typus Bleeker, 1857 -- valid
  Helicophagus waandersii Bleeker, 1858 -- valid -- tre pra kandor
  Helogenes Günther, 1863 -- valid
  Hemanthias Steindachner, 1875 -- valid
  Hemiancistrus Bleeker, 1862 -- valid
  Hemibrycon Günther, 1864 -- valid
  Hemibrycon guppyi (Regan, 1906) -- valid -- guppy's characin, guppy's characin
  Hemibrycon helleri Eigenmann, 1927 -- valid
  Hemicetopsis Bleeker, 1862 -- valid
  Hemichromis letourneuxi Sauvage, 1880 -- valid -- African jewelfish, north African jewelfish
  Hemicoris Bleeker, 1862 -- invalid
  Hemiculter Bleeker, 1860 -- valid
  Hemiculter bleekeri Warpachowski, 1887 -- valid
  Hemiculter krempfi Pellegrin and Chevey, 1938 -- valid
  Hemiculterella Warpachowski, 1887 -- valid
  Hemiculterella sauvagei Warpachowski, 1887 -- valid
  Hemidoras Bleeker, 1858 -- valid
  Hemidoras morrisi Eigenmann, 1925 -- valid
  Hemigaleops Schultz and Welander in Schultz, L.P., E.S. Herald, E.A. Lachner, A.D. Welander, et al., 1953 -- invalid
  Hemigaleops forsteri Schultz and Welander in Schultz, L.P., E.S. Herald, E.A. Lachner, A.D. Welander, et al., 1953 -- invalid
  Hemigaleops fosteri Schultz and Welander in Schultz, L.P., E.S. Herald, E.A. Lachner, A.D. Welander, et al., 1953 -- invalid
  Hemigaleus balfouri Day, 1878 -- invalid
  Hemigaleus machlani Herre, 1929 -- invalid
  Hemigaleus macrostoma Bleeker, 1852 -- invalid
  Hemigaleus microstoma Bleeker, 1852 -- valid -- sicklefin weasel shark
  Hemigaleus pectoralis Garman, 1906 -- invalid
  Hemigaleus pingi Evermann and Shaw, 1927 -- invalid
  Hemigrammocharax Pellegrin, 1923 -- valid
  Hemigrammocharax angolensis Poll, 1967 -- valid
  Hemigrammocharax wittei Poll, 1933 -- valid
  Hemigrammopetersius Pellegrin, 1926 -- valid
  Hemigrammopetersius caudalis (Boulenger, 1899) -- invalid
  Hemigrammus Gill, 1858 -- valid
  Hemigrammus armstrongi Schultz and Axelrod, 1955 -- invalid -- golden tetra, golden tetra
  Hemigrammus bleheri Géry and Mahnert, 1986 -- valid -- red-nose tetra, rummy-nose tetra, red-nose tetra, rummy-nose tetra
  Hemigrammus caudovittatus Ahl, 1923 -- invalid -- Buenos Aires tetra
  Hemigrammus compressus Meek, 1904 -- invalid
  Hemigrammus erythrozonus Durbin, 1909 -- valid -- glowlight tetra, glowlight tetra
  Hemigrammus gracilis (Lütken, 1875) -- valid
  Hemigrammus hyanuary Durbin in Eigenmann, 1918 -- valid
  Hemigrammus levis Durbin in Eigenmann, 1908 -- valid
  Hemigrammus marginatus Ellis, 1911 -- valid
  Hemigrammus nanus (Lütken, 1875) -- invalid
  Hemigrammus ocellifer (Steindachner, 1882) -- valid -- beacon fish, head-and-tail-light tetra, beacon fish, head-and-tail-light tetra
  Hemigrammus ocellifer falsus Meinken, 1958 -- valid
  Hemigrammus ocellifer ocellifer (Steindachner, 1882) -- valid
  Hemigrammus pulcher Ladiges, 1938 -- valid -- black wedge tetra, pretty tetra, pretty tetra, black wedge tetra
  Hemigrammus rhodostomus Ahl, 1924 -- valid -- rednosed tetra, rednosed tetra
  Hemigrammus rodwayi Durbin, 1909 -- valid -- golden tetra, golden tetra, Rodway's tetra
  Hemigrammus unilineatus unilineatus (Gill, 1858) -- valid
  Hemigymnus Günther, 1861 -- valid
  Hemilepidotus Cuvier, 1829 -- valid
  Hemimyzon Regan, 1911 -- valid
  Hemimyzon macroptera Zheng in Zheng, Chen and Huang, 1982 -- valid
  Hemimyzon taitungensis Tzeng and Shen, 1982 -- valid
  Heminodus Smith, 1917 -- valid
  Hemiodidae -- invalid
  Hemiodopsis quadrimaculatus (Pellegrin, 1908) -- invalid
  Hemiodus Müller, 1842 -- valid
  Hemipimelodus Bleeker, 1857 -- valid
  Hemipimelodus bicolor Fowler, 1935 -- invalid
  Hemipristis elongatus (Klunzinger, 1871) -- valid -- snaggletooth shark
  Hemipristis pingali Setna and Sarangdhar, 1946 -- invalid
  Hemipristis serra Agassiz, 1843 -- valid
  Hemipsilichthys Eigenmann and Eigenmann, 1889 -- valid
  Hemipteronotus Lacépède, 1801 -- invalid -- razorfishes
  Hemipteronotus martinicensis (Valenciennes in Cuvier and Valenciennes, 1840) -- invalid -- rosy razorfish
  Hemipteronotus novacula (Linnaeus, 1758) -- invalid -- pearly razorfish
  Hemipteronotus pavoninus (Valenciennes in Cuvier and Valenciennes, 1840) -- invalid
  Hemipteronotus taeniourus (Lacépède, 1801) -- invalid
  Hemiramphidae -- valid -- demi-becs, pajaritos, halfbeaks
  Hemiramphus Cuvier, 1816 -- valid
  Hemirhamphodon Bleeker, 1866 -- valid
  Hemiscyllium Müller and Henle, 1838 -- valid -- epaulette sharks, speckled cat sharks
  Hemiscyllium freycineti (Quoy and Gaimard, 1824) -- valid -- Indonesian speckled carpetshark, bamboa jaspeada, Indonesian speckled carpet shark, requin-chabot grivelé
  Hemiscyllium hallstromi Whitley, 1967 -- valid -- Papuan epaulette shark
  Hemiscyllium ocellatum (Bonnaterre, 1788) -- valid -- epaulette shark
  Hemiscyllium strahani Whitley, 1967 -- valid -- hooded carpetshark
  Hemiscyllium trispeculare Richardson, 1843 -- valid -- speckled carpetshark
  Hemiscyllium variolatum Duméril, 1853 -- invalid
  Hemisilurus Bleeker, 1857 -- valid
  Hemisilurus mekongensis Bornbusch and Lundberg, 1989 -- valid
  Hemistichodus Pellegrin, 1900 -- valid
  Hemistichodus lootensi Poll and Daget, 1968 -- valid
  Hemistichodus mesmaekersi Poll, 1959 -- valid
  Hemistichodus vaillanti Pellegrin, 1900 -- valid
  Hemistoma Swainson, 1839 -- invalid
  Hemitautoga Bleeker, 1862 -- invalid
  Hemitremia Cope, 1870 -- valid -- flame chub
  Hemitremia flammea (Jordan and Gilbert in Jordan, 1878) -- valid -- Flame Chub
  Hemitriakis Herre, 1923 -- valid -- whitefin tope sharks
  Hemitriakis japanica (Müller and Henle, 1839) -- valid -- Japanese topeshark
  Hemitriakis leucoperiptera Herre, 1923 -- valid -- whitefin topeshark
  Hemitripterus Cuvier, 1829 -- valid -- sea ravens
  Hemiulis Swainson, 1839 -- invalid
  Heniochus permutatus Cuvier in Cuvier and Valenciennes, 1831 -- invalid
  Henonemus Eigenmann and Ward in Eigenmann, McAtee and Ward, 1907 -- valid
  Hepsetia Bonaparte, 1836 -- invalid
  Hepsetia breviceps (Valenciennes in Cuvier and Valenciennes, 1835) -- invalid -- cape silverside
  Hepsetus Swainson, 1838 -- valid
  Hepsetus odoe (Bloch, 1794) -- valid -- pike characid, pike characid
  Heptapterus Bleeker, 1858 -- valid
  Heptranchias Rafinesque, 1810 -- valid
  Heptranchias angio Costa, 1857 -- invalid
  Heptranchias cinereus (Gmelin, 1789) -- invalid
  Heptranchias deani Jordan and Starks, 1901 -- invalid
  Heptranchias pectorosus Garman, 1884 -- invalid
  Heptranchias perlo (Bonnaterre, 1788) -- valid -- tiburón de siete branquias, tiburón de 7 branchias, sharpnose sevengill shark
  Heptranchias spilotus Lahille, 1913 -- invalid
  Heraldia Paxton, 1975 -- valid
  Herklotsichthys Whitley, 1951 -- valid
  Herklotsichthys blackburni (Whitley, 1948) -- valid -- Blackburn's herring, Blackburn's yellowfin herring
  Herklotsichthys castelnaui (Ogilby, 1897) -- valid -- southern herring, Castlenau's herring
  Herklotsichthys collettei Wongratana, 1987 -- valid
  Herklotsichthys dispilonotus (Bleeker, 1852) -- valid -- blacksaddle herring
  Herklotsichthys gotoi Wongratana, 1983 -- valid -- Goto's herring
  Herklotsichthys koningsbergeri (Weber and de Beaufort, 1912) -- valid -- McCulloch's herring, Koningsberger's herring
  Herklotsichthys lippa (Whitley, 1931) -- valid -- Australian spotted herring
  Herklotsichthys lossei Wongratana, 1983 -- valid -- Gulf herring
  Herklotsichthys punctatus (Rüppell, 1837) -- valid -- spotback herring
  Herklotsichthys quadrimaculatus (Rüppell, 1837) -- valid -- goldspot herring, hareng à bande bleue, aranque banda azul, gold spot herring, bluestripe herring
  Herklotsichthys spilurus (Guichenot, 1863) -- valid -- Reunion herring
  Herwigia Nielsen, 1972 -- valid
  Hesperoleucus Snyder, 1913 -- valid -- California roaches
  Hesperoleucus symmetricus (Baird and Girard in Girard, 1854) -- valid -- California Roach
  Heterandria Agassiz, 1853 -- valid -- least killifishes
  Hetereleotris Bleeker, 1874 -- valid
  Heterobranchus Geoffroy Saint-Hilaire, 1808 -- valid
  Heterobranchus longifilis Valenciennes in Cuvier and Valenciennes, 1840 -- valid
  Heterochoerops Steindachner, 1866 -- invalid
  Heteroconger Bleeker, 1868 -- valid
  Heteroconger flava (Goode and Bean, 1896) -- invalid
  Heteroconger halis (Böhlke, 1957) -- invalid -- brown garden eel
  Heteroconger hassi (Klausewitz and Eibl-Eibesfeldt, 1959) -- valid
  Heteroconger longissimus Günther, 1870 -- valid -- brown garden eel, congrio de jardín
  Heteroconger luteolus Smith, 1989 -- valid -- yellow garden eel
  Heterodontus Blainville, 1816 -- valid
  Heterodontus francisci (Girard, 1855) -- valid -- horn shark, tiburón puerco, dormilón cornudo, requin dormeur cornu
  Heterodontus galeatus (Günther, 1870) -- valid -- crested bullhead shark
  Heterodontus japonicus Maclay and Macleay, 1884 -- valid -- dormilón japonés, Japanese bullhead shark, requin dormeur nekozame
  Heterodontus japonicus (Duméril, 1865) -- invalid -- Japanease bullhead shark
  Heterodontus mexicanus Taylor and Castro-Aguirre, 1972 -- valid -- Mexican hornshark, Mexican horn shark, tiburón perro
  Heterodontus portusjacksoni (Meyer, 1793) -- valid -- Port Jackson shark
  Heterodontus quoyi (Fréminville, 1840) -- valid -- Galapagos bullhead shark
  Heterodontus ramalheira (Smith, 1949) -- valid -- heterodontus zebra, whitespotted bullhead shark, zebra bullhead shark, dormilón boquigrande, requin dormeur chabot
  Heterodontus zebra (Gray, 1831) -- valid -- zebra bullhead shark
  Heterogaleus ghardaqensis Gohar and Mazhar, 1964 -- invalid
  Heteromormyrus Steindachner, 1866 -- valid
  Heteromormyrus pauciradiatus (Steindachner, 1866) -- valid
  Heteromycteris Kaup, 1858 -- valid
  Heteromycteris capensis Kaup, 1858 -- valid -- Cape sole
  Heteronarce Regan, 1921 -- valid
  Heteronarce garmani Regan, 1921 -- valid
  Heteronarce mollis (Lloyd, 1907) -- valid
  Heterophotus Regan and Trewavas, 1929 -- valid
  Heteropneustes Müller, 1840 -- valid
  Heteropneustes fossilis (Bloch, 1794) -- valid -- stinging catfish
  Heteropneustes microps (Günther, 1864) -- valid
  Heteropriacanthus Fitch and Crooke, 1984 -- valid
  Heteropriacanthus cruentatus (Lacepède, 1801) -- valid -- catalufa espinosa, glasseye snapper, catalufa roquera
  Heteroscyllium Regan, 1908 -- valid
  Heteroscyllium colcloughi (Ogilby, 1908) -- valid -- bluegray carpetshark
  Heteroscymnoides marleyi Fowler, 1934 -- valid -- longnose pygmy shark
  Heteroscymnus Tanaka, 1912 -- invalid
  Heteroscymnus longus Tanaka, 1912 -- invalid
  Heterotis Rüppell, 1828 -- valid
  Heterotis niloticus (Cuvier, 1829) -- valid -- African bonytongue
  Hexagrammos Tilesius, 1810 -- valid -- greenlings, rock trouts
  Hexanchus Rafinesque, 1810 -- valid -- sixgill sharks
  Hexanchus corinus Jordan and Gilbert, 1880 -- invalid
  Hexanchus griseus (Bonnaterre, 1788) -- valid -- bluntnose sixgill shark, sixgill shark, tiburón de seis branquias, marrajo
  Hexanchus griseus australis de Buen, 1960 -- invalid
  Hexanematichthys Bleeker, 1858 -- valid
  Hexatrematobatis Chu and Meng in Chu, Meng, Hu and Li, 1981 -- invalid
  Hexatrematobatis longirostrum Chu and Meng in Chu, Meng, Hu and Li, 1981 -- invalid
  Hexatrygon bickelli Heemstra and Smith, 1980 -- valid
  Hexatrygon longirostra (Chu and Meng in Chu, Meng, Hu and Li, 1981) -- invalid
  Hiatula Lacépède, 1800 -- invalid
  Hildebrandia Jordan and Evermann, 1927 -- invalid
  Hildebrandia flava (Goode and Bean, 1896) -- invalid -- yellow conger
  Hildebrandia gracilior (Ginsburg, 1951) -- invalid -- whiptail conger
  Hildebrandia guppyi (Norman, 1925) -- invalid
  Hilsa Regan, 1917 -- valid
  Hilsa ilisha (Hamilton, 1822) -- invalid
  Hilsa kelee (Cuvier, 1829) -- valid -- Kelee shad, alose palli, sábalo chandano
  Himantolophus Reinhardt, 1837 -- valid
  Himantura bleekeri (Blyth, 1860) -- valid
  Himantura chaophraya Monkolprasit and Roberts, 1990 -- valid
  Himantura draco Compagno and Heemstra, 1984 -- invalid
  Himantura fai Jordan and Seale, 1906 -- valid
  Himantura fava (Annandale, 1909) -- valid
  Himantura fluviatilis (Hamilton, 1822) -- valid
  Himantura gerrardi (Gray, 1851) -- valid
  Himantura granulata (Macleay, 1883) -- valid
  Himantura imbricata (Bloch and Schneider, 1801) -- valid
  Himantura jenkinsii (Annandale, 1909) -- valid
  Himantura krempfi (Chabanaud, 1923) -- valid
  Himantura marginata (Blyth, 1860) -- valid
  Himantura pacifica (Beebe and Tee-van, 1941) -- valid -- Pacific whiptail stingray, raya coluda del Pacífico
  Himantura schmardae (Werner, 1904) -- valid -- Chupare stingray, lebisa, Caribbean whiptail stingray, raya coluda caribeña
  Himantura signifer Compagno and Roberts, 1982 -- valid
  Himantura uarnak (Forsskċl, 1775) -- valid
  Himantura undulata (Bleeker, 1852) -- valid
  Hinalea Jordan and Jordan, 1922 -- invalid
  Hiodon Lesueur, 1818 -- valid -- mooneyes
  Hiodon alosoides (Rafinesque, 1819) -- valid -- goldeye, laquaiche aux yeux d'or
  Hiodon selenops Jordan and Bean in Jordan, 1877 -- invalid -- southern mooneye, southern mooneye
  Hiodon tergisus Lesueur, 1818 -- valid -- mooneye, laquaiche argentée
  Hippichthys Bleeker, 1849 -- valid -- river pipefishes
  Hippocampus Rafinesque, 1810 -- valid -- seahorses
  Hippoglossina Steindachner, 1876 -- valid
  Hippoglossina stomata Eigenmann & Eigenmann, 1890 -- valid -- bigmouth sole, lenguado bocón, Bigmouth Sole
  Hippoglossoides Gottsche, 1835 -- valid
  Hippoglossoides dubius Schmidt, 1904 -- valid -- akagarei, flathead flounder
  Hippoglossoides elassodon Jordan & Gilbert, 1880 -- valid -- flathead sole, Flathead Sole, plie à tête plate
  Hippoglossoides exilis Jordan & Gilbert, 1880 -- invalid
  Hippoglossoides jordani Lockington, 1879 -- invalid
  Hippoglossoides pinetorum (Jordan & Starks, 1904) -- invalid -- sohachi flounder
  Hippoglossoides platessoides (Fabricius, 1780) -- valid -- American plaice, plie canadienne, American dab, Canadian plaice, dab, American Plaice
  Hippoglossoides punctatissimus Steindachner, 1879 -- invalid
  Hippoglossoides robustus Gill & Townsend, 1897 -- valid -- Bering flounder, Bering Flounder, plie de Béring
  Hippoglossoidinae -- valid
  Hippoglossus Cuvier, 1816 -- valid -- halibuts
  Hippoglossus goniographicus Richardson, 1846 -- invalid
  Hippoglossus grigorjewi Herzenstein, 1890 -- invalid
  Hippoglossus hippoglossus (Linnaeus, 1758) -- valid -- Atlantic halibut, flétan atlantique, Atlantic Halibut
  Hippoglossus orthorhynchus Richardson, 1846 -- invalid
  Hippoglossus quadrifasciatus Bleeker, 1870 -- invalid
  Hippopotamyrus Pappenheim, 1906 -- valid
  Hippopotamyrus aelsbroecki (Poll, 1945) -- valid
  Hippopotamyrus ansorgii (Boulenger, 1905) -- valid
  Hippopotamyrus batesii (Boulenger, 1906) -- valid
  Hippopotamyrus castor Pappenheim, 1906 -- valid
  Hippopotamyrus discorhynchus (Peters, 1852) -- valid
  Hippopotamyrus grahami (Norman, 1928) -- valid
  Hippopotamyrus harringtoni (Boulenger, 1905) -- valid
  Hippopotamyrus macrops (Boulenger, 1909) -- valid
  Hippopotamyrus macroterops (Boulenger, 1920) -- valid
  Hippopotamyrus pappenheimi (Boulenger, 1910) -- valid
  Hippopotamyrus pictus (Marcusen, 1864) -- valid
  Hippopotamyrus psittacus (Boulenger, 1897) -- valid
  Hippopotamyrus retrodorsalis (Nichols and Griscom, 1917) -- valid
  Hippopotamyrus smithersi (Määr, 1962) -- valid
  Hippopotamyrus weeksii (Boulenger, 1902) -- valid
  Hippopotamyrus wilverthi (Boulenger, 1898) -- valid
  Hipposcarus Smith, 1956 -- valid
  Hipposcarus harid (Forsskċl, 1775) -- valid -- redlined parrotfish
  Hirundichthys Breder, 1928 -- valid
  Hirundichthys rondeleti (Valenciennes in Cuvier and Valenciennes, 1847) -- invalid
  Hirundichthys rondeletii (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- Blackwing Flyingfish, brownwinged flyingfish, nonsuch flyingfish, volador de alas negras, volador ala negra, exocet aile noire
  Hispidoberyx Kotlyar, 1981 -- valid
  Histiobranchus Gill, 1883 -- valid
  Histiobranchus bathybius (Günther, 1877) -- valid -- deepwater cutthroat eel
  Histiobranchus infernalis Gill, 1883 -- invalid
  Histiocottus Gill, 1889 -- invalid
  Histrio jagua Nichols, 1920 -- invalid -- brown mousefish
  Hito Herre, 1924 -- valid
  Hito taytayensis Herre, 1924 -- valid
  Holacanthus Lacepède, 1802 -- valid -- angelfishes
  Holacanthus sexstriatus Cuvier in Cuvier and Valenciennes, 1831 -- invalid
  Holacanthus xanthometopon Bleeker, 1853 -- invalid
  Holanthias Günther, 1868 -- valid
  Hologymnosus Lacépède, 1801 -- valid
  Holohalaelurus Fowler, 1934 -- valid -- Izak cat sharks
  Holohalaelurus punctatus (Gilchrist, 1914) -- valid -- African spotted catshark
  Holohalaelurus regani (Gilchrist, 1922) -- valid -- Izak catshark
  Holopristes riddlei Meek in Eigenmann and Ogle, 1907 -- invalid
  Holtbyrnia Parr, 1937 -- valid
  Homaloptera van Hasselt, 1823 -- valid
  Homaloptera maxinae Fowler, 1937 -- valid
  Homaloptera zollingeri Bleeker, 1853 -- valid
  Homodiaetus Eigenmann and Ward in Eigenmann, McAtee and Ward, 1907 -- valid
  Homostolus Smith and Radcliffe in Radcliffe, 1913 -- valid
  Hoplerythrinus Gill, 1896 -- valid
  Hoplerythrinus unitaeniatus (Spix and Agassiz, 1829) -- valid
  Hoplias Gill, 1903 -- valid
  Hoplias malabaricus (Bloch, 1794) -- valid -- tigerfish, trahira
  Hoplichthys Cuvier in Cuvier and Valenciennes, 1829 -- valid
  Hoplocottus Kaup, 1858 -- invalid
  Hoplolatilus Günther, 1887 -- valid
  Hoplomyzon Myers, 1942 -- valid
  Hoplopagrus Gill, 1861 -- valid
  Hoplosternum thoracatum (Valenciennes in Cuvier and Valenciennes, 1840) -- invalid
  Hoplostethus Cuvier in Cuvier and Valenciennes, 1829 -- valid
  Hoplunnis Kaup, 1860 -- valid
  Hoplunnis megista Smith and Kanazawa in Smith, 1989 -- valid
  Hoplunnis pacifica Lane and Stewart, 1968 -- valid -- silver pikeconger, serpentina plateada
  Hoplunnis punctata Regan, 1915 -- valid
  Hoplunnis schmidti Kaup, 1860 -- valid
  Hoplunnis sicarius (Garman, 1899) -- valid
  Hoplunnis similis Smith, 1989 -- valid
  Hoplunnis tenuis Ginsburg, 1951 -- valid -- spotted pike-conger, congrio colilargo, serpentina dientona, spotted pikeconger
  Horaglanis Menon, 1950 -- valid
  Horaichthyinae -- valid
  Horaichthys Kulkarni, 1940 -- valid
  Hospilabrus Whitley, 1931 -- invalid
  Howella Ogilby, 1899 -- valid
  Hozukius Matsubara, 1934 -- valid
  Hubbesia Jordan, 1919 -- invalid
  Hubbsina de Buen, 1940 -- invalid
  Hucho Günther, 1866 -- valid
  Huso Brandt and Ratzeburg, 1833 -- valid
  Hybognathus Agassiz, 1855 -- valid -- silvery minnows
  Hybognathus amarus (Girard, 1856) -- valid -- Rio Grande Silvery Minnow, carpa Chamizal
  Hybognathus argyritis Girard, 1856 -- valid -- méné d'argent de l'ouest, Western Silvery Minnow
  Hybognathus hayi Jordan, 1885 -- valid -- Cypress Minnow
  Hybognathus nuchalis Agassiz, 1855 -- valid -- Mississippi Silvery Minnow, méné d'argent
  Hybognathus placitus Girard, 1856 -- valid -- méné des plaines, Plains Minnow
  Hybognathus regius Girard, 1856 -- valid -- méné d'argent de l'est, Eastern Silvery Minnow, méné d'argent
  Hybopsis Agassiz, 1854 -- valid -- bigeye chubs
  Hybopsis aestivalis (Girard, 1856) -- invalid -- speckled chub
  Hybopsis amblops (Rafinesque, 1820) -- valid -- Bigeye Chub
  Hybopsis amnis (Hubbs and Greene in Hubbs, 1951) -- valid -- Pallid Shiner, pallid chub
  Hybopsis cahni Hubbs and Crowe, 1956 -- invalid -- slender chub
  Hybopsis crameri Snyder, 1908 -- invalid -- Oregon chub
  Hybopsis dissimilis (Kirtland, 1840) -- invalid -- streamline chub
  Hybopsis gracilis Agassiz, 1854 -- invalid -- flathead chub
  Hybopsis hypsinotus (Cope, 1870) -- valid -- Highback Chub
  Hybopsis insignis Hubbs and Crowe, 1956 -- invalid -- blotched chub
  Hybopsis labrosa (Cope, 1870) -- invalid -- thicklip chub
  Hybopsis lineapunctata Clemmer and Suttkus, 1971 -- valid -- Lined Chub
  Hybopsis meeki Jordan and Evermann, 1896 -- invalid -- sicklefin chub
  Hybopsis monacha (Cope, 1868) -- invalid -- spotfin chub
  Hybopsis rubrifrons (Jordan, 1877) -- valid -- Rosyface Chub
  Hybopsis storeriana (Kirtland, 1845) -- invalid -- silver chub
  Hybopsis winchelli Girard, 1856 -- valid -- Clear Chub
  Hybopsis x-punctata Hubbs and Crowe, 1956 -- invalid -- gravel chub
  Hybopsis zanema (Jordan and Brayton, 1878) -- invalid -- Santee chub
  Hydrocynus Cuvier, 1816 -- valid
  Hydrocynus brevis (Günther, 1864) -- valid
  Hydrocynus maculatus (Valenciennes in Cuvier and Valenciennes, 1850) -- invalid
  Hydrocynus vittatus Castelnau, 1861 -- valid
  Hydrolagus Gill, 1862 -- valid
  Hydrolagus affinis (Brito Capello, 1868) -- valid -- Atlantic chimaera, deepwater chimaera
  Hydrolagus africanus (Gilchrist, 1922) -- valid
  Hydrolagus alberti Bigelow and Schroeder, 1951 -- valid
  Hydrolagus barbouri (Garman, 1908) -- valid
  Hydrolagus colliei (Lay and Bennett, 1839) -- valid -- quimera manchada, spotted ratfish
  Hydrolagus deani Smith and Radcliffe in Smith, 1912 -- valid
  Hydrolagus eidolon (Jordan and Hubbs, 1925) -- valid
  Hydrolagus lemures Whitley, 1939 -- valid
  Hydrolagus macrophthalmus de Buen, 1959 -- valid
  Hydrolagus mirabilis (Collett, 1904) -- valid
  Hydrolagus mitsukurii (Jordan and Schneider, 1904) -- valid
  Hydrolagus novaezealandiae (Fowler, 1911) -- valid
  Hydrolagus ogilbyi (Waite, 1898) -- valid
  Hydrolagus pallidus Hardy and Stehmann, 1990 -- valid -- pallid chimaera
  Hydrolagus purpurescens (Gilbert, 1905) -- valid -- purple chimaera
  Hydrolagus waitei Fowler, 1907 -- valid
  Hydrolycus Müller and Troschel, 1844 -- valid
  Hydrolycus pectoralis (Günther, 1866) -- invalid
  Hydrolycus scomberoides (Cuvier, 1819) -- valid
  Hygophum Bolin, 1939 -- valid
  Hymenocephalus Giglioli in Giglioli and Issel, 1884 -- valid
  Hymenophysa McClelland, 1839 -- invalid
  Hymenophysa curta (Temminck and Schlegel, 1846) -- invalid -- ayumodoki, loach
  Hypancistrus Isbrücker and Nijssen, 1991 -- valid
  Hypentelium Rafinesque, 1818 -- valid -- hog suckers
  Hypentelium etowanum (Jordan, 1877) -- valid -- Alabama Hog Sucker
  Hypentelium nigricans (Lesueur, 1817) -- valid -- Northern Hog Sucker, meunier à tête carrée
  Hypentelium roanokense Raney and Lachner, 1947 -- valid -- Roanoke Hog Sucker
  Hyperlophus Ogilby, 1892 -- valid
  Hyperlophus translucidus McCulloch, 1917 -- valid -- grassy sprat, transparent sandy sprat
  Hyperlophus vittatus (Castelnau, 1875) -- valid -- sandy sprat, whitebait
  Hyperopisus Gill, 1862 -- valid
  Hyperopisus bebe (Lacepède, 1803) -- valid
  Hyperopisus bebe occidentalis Günther, 1866 -- valid
  Hyperoplus immaculatus (Corbin, 1950) -- valid -- Corbin's sand eel
  Hyphessobrycon Durbin in Eigenmann, 1908 -- valid
  Hyphessobrycon anisitsi (Eigenmann in Eigenmann and Ogle, 1907) -- valid
  Hyphessobrycon bentosi Durbin in Eigenmann, 1908 -- valid
  Hyphessobrycon bifasciatus Ellis, 1911 -- valid -- yellow tetra, yellow tetra
  Hyphessobrycon callistus (Boulenger, 1900) -- invalid
  Hyphessobrycon copelandi Durbin in Eigenmann, 1908 -- valid -- Copeland's tetra
  Hyphessobrycon eques (Steindachner, 1882) -- valid
  Hyphessobrycon erythrostigma (Fowler, 1943) -- valid -- bleeding heart tetra, bleeding heart tetra
  Hyphessobrycon flammeus Myers, 1924 -- valid -- flame tetra, red tetra, flame tetra, red tetra
  Hyphessobrycon gracilis (Lütken, 1875) -- invalid
  Hyphessobrycon griemi Hoedeman, 1957 -- valid -- Griem's tetra
  Hyphessobrycon herbertaxelrodi Géry, 1961 -- valid -- black neon, black neon
  Hyphessobrycon heterorhabdus (Ulrey, 1894) -- valid -- flag tetra, flag tetra
  Hyphessobrycon inconstans (Eigenmann and Ogle, 1907) -- valid
  Hyphessobrycon innesi Myers, 1936 -- invalid
  Hyphessobrycon loretoensis Ladiges, 1938 -- valid -- loreto tetra, loreto tetra
  Hyphessobrycon megalopterus (Eigenmann, 1915) -- valid
  Hyphessobrycon minimus Durbin, 1909 -- valid -- dwarf tetra, dwarf tetra
  Hyphessobrycon minor Durbin, 1909 -- valid
  Hyphessobrycon ornatus Ahl, 1934 -- invalid -- rosy tetra, rosy tetra
  Hyphessobrycon pulchripinnis Ahl, 1937 -- valid -- lemon tetra, lemon tetra
  Hyphessobrycon reticulatus Ellis, 1911 -- valid -- netted tetra, netted tetra
  Hyphessobrycon robustulus (Cope, 1870) -- valid
  Hyphessobrycon rosaceus Durbin, 1909 -- valid
  Hyphessobrycon scholzei Ahl, 1937 -- valid
  Hyphessobrycon simulans Géry, 1963 -- invalid
  Hyphessobrycon sweglesi (Géry, 1961) -- valid
  Hyphessobrycon vilmae Géry, 1966 -- valid
  Hypnos Duméril, 1852 -- valid
  Hypnos monopterygium (Shaw in Shaw and Nodder, 1795) -- valid
  Hypoatherina barnesi Schultz in Schultz et al., 1953 -- valid
  Hypoatherina temminckii (Bleeker, 1853) -- valid
  Hypoatherina valenciennei (Bleeker, 1853) -- valid
  Hypoclinemus Chabanaud, 1928 -- valid
  Hypoclinemus mentalis (Günther, 1862) -- valid
  Hypodites Gistel, 1848 -- invalid
  Hypodites rubripinnis (Temminck and Schlegel, 1843) -- invalid -- tiny stinger
  Hypodytes Gistel, 1848 -- invalid
  Hypodytes rubripinnis (Temminck and Schlegel, 1843) -- invalid
  Hypogaleus Smith, 1957 -- valid
  Hypogaleus hyugaensis (Miyosi, 1939) -- valid -- blacktip tope
  Hypogaleus zanzibarensis (Smith, 1957) -- invalid
  Hypolophus Müller and Henle, 1837 -- invalid
  Hypolophus sephen (Forsskċl, 1775) -- invalid
  Hypomesus Gill, 1862 -- valid -- smallmouth smelts
  Hypophthalmichthys Bleeker, 1860 -- valid -- bighead carps
  Hypophthalmichthys microlepis (Steindachner, 1869) -- invalid
  Hypophthalmichthys molitrix (Valenciennes in Cuvier and Valenciennes, 1844) -- valid -- silver carp, carpa plateada
  Hypophthalmus Cuvier, 1829 -- valid
  Hypophthalmus edentatus Spix and Agassiz, 1829 -- valid
  Hypoplectrodes Gill, 1862 -- valid
  Hypoplectrus Gill, 1861 -- valid
  Hypopomus Gill, 1864 -- valid
  Hypopomus artedi (Kaup, 1856) -- valid
  Hypoprion Müller and Henle, 1838 -- invalid
  Hypoprion bigelowi Cadenat, 1956 -- invalid
  Hypoprion brevirostris Poey, 1868 -- invalid
  Hypoprion longirostris Poey, 1876 -- invalid
  Hypoprion macloti (Müller and Henle, 1839) -- invalid
  Hypoprion signatus Poey, 1868 -- invalid
  Hypoptopoma Günther, 1868 -- valid
  Hypoptopoma thoracatum Günther, 1868 -- valid
  Hypoptychus Steindachner, 1880 -- valid
  Hypopygus Hoedeman, 1962 -- valid
  Hyporhamphus Gill, 1859 -- valid -- halfbeaks
  Hyporhamphus ihi Phillipps, 1932 -- valid -- garfish
  Hypostomus Lacepède, 1803 -- valid -- suckermouth catfishes
  Hypostomus plecostomus (Linnaeus, 1758) -- valid -- suckermouth catfish
  Hypostomus punctatus Valenciennes in Cuvier and Valenciennes, 1840 -- valid -- suckermouthed catfish
  Hypostomus robini Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Hypsagonus Gill, 1861 -- valid
  Hypselecara Kullander, 1986 -- valid
  Hypselecara coryphaenoides (Heckel, 1840) -- valid -- chocolate cichlid
  Hypsigenys Günther, 1861 -- invalid
  Hypsopanchax Myers, 1924 -- valid
  Hystricodon Günther, 1864 -- invalid
  Hystricodon paradoxus (Müller and Troschel, 1844) -- invalid
  Iago garricki Fourmanoir and Rivaton, 1979 -- valid -- longnose houndshark
  Iago omanensis (Norman, 1939) -- valid -- bigeye houndshark
  Icelichthys Schmidt, 1935 -- invalid
  Icelus Krĝyer, 1845 -- valid
  Ichthyborus Günther, 1864 -- valid
  Ichthyborus besse (Joannis, 1835) -- valid
  Ichthyborus monodi (Pellegrin, 1927) -- valid
  Ichthyococcus Bonaparte, 1840 -- valid
  Ichthyoelephas Posada, 1909 -- valid
  Ichthyoelephas humeralis (Günther, 1860) -- valid
  Ichthyscopus Swainson, 1839 -- valid
  Ichtycallus Swainson, 1839 -- invalid
  Ictalurus Rafinesque, 1820 -- valid -- channel catfishes, forktail catfishes
  Ictalurus brunneus (Jordan, 1877) -- invalid -- snail bullhead
  Ictalurus catus (Linnaeus, 1758) -- invalid -- white bullhead, white catfish
  Ictalurus furcatus (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- Blue Catfish, bagre azul
  Ictalurus lupus (Girard, 1858) -- valid -- Headwater Catfish, bagre lobo
  Ictalurus melas (Rafinesque, 1820) -- invalid -- black bullhead
  Ictalurus natalis (Lesueur, 1819) -- invalid -- yellow bullhead
  Ictalurus nebulosus (Lesueur, 1819) -- invalid -- brown bullhead
  Ictalurus platycephalus (Girard, 1859) -- invalid -- flat bullhead
  Ictalurus pricei (Rutter, 1896) -- valid -- Yaqui Catfish, bagre yaqui
  Ictalurus punctatus (Rafinesque, 1818) -- valid -- Channel Catfish, graceful catfish, bagre de canal, barbue de rivière
  Ictalurus serracanthus Yerger and Relyea, 1968 -- invalid -- spotted bullhead
  Ictiobus Rafinesque, 1820 -- valid -- buffalo suckers, buffalo fishes
  Ictiobus bubalus (Rafinesque, 1818) -- valid -- Smallmouth Buffalo, matalote boquín, buffalo à petite bouche
  Ictiobus cyprinellus (Valenciennes in Cuvier and Valenciennes, 1844) -- valid -- Bigmouth Buffalo, buffalo à grande bouche
  Ictiobus labiosus (Meek, 1904) -- valid -- Fleshylip Buffalo, matalote bocón
  Ictiobus meridionalis (Günther, 1868) -- valid -- Usumacinta buffalo, Southern Buffalo, matalote meridional
  Ictiobus niger (Rafinesque, 1819) -- valid -- Black Buffalo, buffalo noir, matalote negro
  Idiacanthus Peters, 1877 -- valid
  Idiastion Eschmeyer, 1965 -- valid
  Idiolophorhynchus Sazonov, 1981 -- valid
  Idus idus (Linnaeus, 1758) -- invalid
  Idus melanotus Heckel, 1843 -- invalid
  Iguanodectes Cope, 1872 -- valid
  Iguanodectes adujai Géry, 1970 -- valid
  Iguanodectes geisleri Géry, 1970 -- valid
  Iguanodectes spilurus (Günther, 1864) -- valid
  Ijimaia Sauter, 1905 -- valid
  Ilisha Richardson, 1846 -- valid
  Ilisha africana (Bloch, 1795) -- valid -- west African ilisha
  Ilisha amazonica (Miranda Ribeiro, 1920) -- valid -- Amazon ilisha
  Ilisha compressa Randall, 1994 -- valid
  Ilisha elongata (Anonymous [Bennett], 1830) -- valid -- slender shad, elongate ilisha, alose gracile
  Ilisha filigera (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- Coromandel ilisha
  Ilisha fuerthii (Steindachner, 1875) -- valid -- Pacific ilisha, sardina hacha, hatchet herring
  Ilisha furthii (Steindachner, 1875) -- invalid -- Pacific ilisha
  Ilisha harroweri Fowler, 1917 -- invalid -- caille
  Ilisha kampeni (Weber and de Beaufort, 1913) -- valid -- Kampen's ilisha
  Ilisha lunula Kailola, 1986 -- valid -- crescent long-tailed ilisha
  Ilisha macrogaster Bleeker, 1866 -- valid -- Kalimantan ilisha
  Ilisha megaloptera (Swainson, 1839) -- valid -- bigeye ilisha, alose à gros yeux, sardineta ojigrande
  Ilisha melastoma (Bloch and Schneider, 1801) -- valid -- alose indienne, sardineta indica, Indian ilisha
  Ilisha novacula (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- Burmese River ilisha
  Ilisha obfuscata Wongratana, 1983 -- valid -- hidden ilisha
  Ilisha pristigastroides (Bleeker, 1852) -- valid -- Javan ilisha
  Ilisha sirishai Seshagiri Rao, 1975 -- valid -- lobejaw ilisha
  Ilisha striatula Wongratana, 1983 -- valid -- banded ilisha
  Ilyodon Eigenmann, 1907 -- valid
  Ilyophis Gilbert, 1891 -- valid
  Imparfinis Eigenmann and Norris, 1900 -- valid
  Indostomus Prashad and Mukerji, 1929 -- valid
  Inermia Poey, 1860 -- valid -- boga
  Inimicus Jordan and Starks, 1904 -- valid
  Inpaichthys Géry and Junk, 1977 -- valid
  Inpaichthys kerri Géry and Junk, 1977 -- valid
  Iotichthys Jordan and Evermann, 1896 -- valid -- least chubs
  Iotichthys phlegethontis (Cope, 1874) -- valid -- Least Chub
  Iracundus Jordan and Evermann, 1903 -- valid
  Iriatherina Meinken, 1974 -- valid
  Iridio Jordan and Evermann, 1896 -- invalid
  Irolita waitii (McCulloch, 1911) -- valid
  Isichthys Gill, 1863 -- valid
  Isichthys henryi Gill, 1863 -- valid
  Isistius brasiliensis (Quoy and Gaimard, 1824) -- valid -- tiburón cigarro, cookiecutter shark
  Isistius plutodus Garrick and Springer, 1964 -- valid -- largetooth cookiecutter shark
  Iso Jordan and Starks, 1901 -- valid
  Isogomphodon Gill, 1862 -- valid
  Isogomphodon maculipinnis Poey, 1865 -- invalid
  Istigobius Whitley, 1932 -- valid
  Istigobius ornatus (Rüppell, 1830) -- valid
  Istigobius spence (Smith, 1947) -- valid
  Isurus alatus Garrick, 1967 -- invalid
  Isurus glaucus (Müller and Henle, 1839) -- invalid
  Isurus oxyrinchus Rafinesque, 1810 -- valid -- shortfin mako, mako, dientuso azul
  Isurus paucus Guitart Manday, 1966 -- valid -- longfin mako, mako aletón, dientuso prieto, marrajo carite, petit taupe
  Ivindomyrus Taverne and Géry, 1975 -- valid
  Ivindomyrus opdenboschi Taverne and Géry, 1975 -- valid
  Japonolaeops Amaoka, 1969 -- valid
  Japonolaeops dentatus Amaoka, 1969 -- valid
  Jeboehlkia Robins, 1967 -- valid
  Jenkinsia Jordan and Evermann, 1896 -- valid
  Jenkinsia lamprotaenia (Gosse, 1851) -- valid -- dwarf herring, manjúa, sardinita flaca, dwarf round herring
  Jenkinsia majua Whitehead, 1963 -- valid -- little-eye herring, sardineta, sardinita ojito, little-eye round herring
  Jenkinsia parvula Cervigón and Velazquez, 1978 -- valid -- short-striped round herring
  Jenkinsia stolifera (Jordan and Gilbert, 1884) -- valid -- shortband herring, sardinita de cayo, Florida round herring
  Jenynsia Günther, 1866 -- valid
  Jobertina rachovii (Regan, 1913) -- invalid
  Johnius Bloch, 1793 -- valid -- maigres, maigres
  Jordanella Goode and Bean in Goode, 1879 -- valid -- flagfishes
  Jordania Starks, 1895 -- valid
  Jordanicus Gilbert, 1905 -- invalid
  Julis eydouxii Valenciennes in Cuvier and Valenciennes, 1839 -- invalid -- hinalea hilu
  Julis hyrtlii Bleeker, 1856 -- invalid
  Juncrus Whitley, 1939 -- invalid
  Juncrus vincenti (Zietz, 1908) -- invalid
  Jurengraulis Whitehead in Whitehead, Nelson and Wongratana, 1988 -- valid
  Jurengraulis juruensis (Boulenger, 1898) -- valid -- Jurua anchovy
  Kalyptatherina Saeed and Ivantsoff, 1991 -- valid
  Kamoharaia Kuronuma, 1940 -- valid
  Kamoharaia megastoma (Kamohara, 1936) -- valid
  Kanekonia Tanaka, 1915 -- valid
  Karumba Whitley, 1966 -- invalid
  Kaupichthys Schultz, 1943 -- valid
  Kaupichthys atronasus Schultz in Schultz, Herald, Lachner, Welander and Woods, 1953 -- valid
  Kaupichthys brachychirus Schultz in Schultz, Herald, Lachner, Welander and Woods, 1953 -- valid
  Kaupichthys hyoproroides (Strömman, 1896) -- valid -- false moray, anguililla de arrecife, reef moray, morena falsa de arrecife
  Kaupichthys nuchalis Böhlke, 1967 -- valid -- collared eel, anguililla de collar, morena falsa de collar
  Kentrocapros Kaup, 1855 -- valid
  Kessleria Bogdanov, 1882 -- invalid
  Kiunga Allen, 1983 -- valid
  Klausewitzia Géry, 1965 -- valid
  Klausewitzia ritae Géry, 1965 -- valid
  Kneria Steindachner, 1866 -- valid
  Kneria angolensis Steindachner, 1866 -- valid
  Kneria ansorgii (Boulenger, 1910) -- valid
  Kneria auriculata (Pellegrin, 1905) -- valid
  Kneria katangae Poll, 1976 -- valid
  Kneria maydelli Ladiges and Voelker, 1961 -- valid
  Kneria paucisquamata Poll and Stewart, 1975 -- valid
  Kneria polli Trewavas, 1936 -- valid
  Kneria ruaha Seegers, 1995 -- valid
  Kneria rukwaensis Seegers, 1995 -- valid
  Kneria sjolandersi Poll, 1967 -- valid
  Kneria stappersii Boulenger, 1915 -- valid
  Kneria uluguru Seegers, 1995 -- valid
  Kneria wittei Poll, 1944 -- valid
  Konosirus Jordan and Snyder, 1900 -- valid
  Konosirus punctatus (Temminck and Schlegel, 1846) -- valid -- dotted gizzard shad, Konoshiro gizzard shad
  Kosswigichthys Soezer, 1942 -- invalid
  Kryptopterus Bleeker, 1857 -- valid -- glass catfishes
  Kryptopterus bicirrhis (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- ghostfish, glass catfish, Indian glass wels
  Kryptopterus macrocephalus (Bleeker, 1858) -- valid -- East Indies glass catfish
  Kuiterichthys Pietsch, 1984 -- valid
  Kuiterichthys furcipilis (Cuvier, 1817) -- valid -- rough frogfish
  Kyphosus Lacepède, 1801 -- valid -- rudderfishes
  Kyphosus analogus (Gill, 1862) -- valid -- blue-bronze chub, chopa rayada, salema
  Kyphosus biggibus Lacepède, 1801 -- invalid
  Kyphosus bigibbus Lacepède, 1801 -- valid -- striped drummer
  Kyphosus cornelii (Whitley, 1944) -- valid
  Kyphosus gibsoni Ogilby, 1912 -- invalid -- Gibson's drummer
  Kyphosus sydneyanus (Günther, 1886) -- valid -- silver drummer
  Kyphosus vaigiensis (Quoy and Gaimard, 1825) -- valid -- lowfinned drummer
  Labeo Cuvier, 1816 -- valid
  Labeo bicolor Smith, 1931 -- invalid
  Labeo boga (Hamilton, 1822) -- valid
  Labeo calbasu (Hamilton, 1822) -- valid
  Labeo capensis (Smith, 1841) -- valid
  Labeo chrysophekadion (Bleeker, 1850) -- valid -- black labeo, black sharkminnow
  Labeo erythrura Fowler, 1937 -- invalid
  Labeo fimbriatus (Bloch, 1795) -- valid
  Labeo frenatus Fowler, 1934 -- invalid
  Labeo rohita (Hamilton, 1822) -- valid
  Labeo umbratus (Smith, 1841) -- valid
  Labichthys Gill and Ryder, 1883 -- valid
  Labichthys carinatus Gill and Ryder, 1883 -- valid
  Labichthys yanoi (Mead and Rubinoff, 1966) -- valid
  Labidesthes Cope, 1870 -- valid -- brook silversides
  Labracinus Schlegel, 1858 -- valid
  Labracinus lineatus (Castelnau, 1875) -- valid -- shortfinned cichlops
  Labrichthys Bleeker, 1854 -- valid
  Labroides Bleeker, 1851 -- valid
  Labropsis Schmidt, 1931 -- valid
  Labrus Linnaeus, 1758 -- valid -- wrasses
  Lachnolaimus Cuvier, 1829 -- valid
  Lactarius Valenciennes in Cuvier and Valenciennes, 1833 -- valid
  Ladigesia Géry, 1968 -- valid
  Ladigesia roloffi Géry, 1968 -- valid -- Sierra Leone dwarf characin
  Laemolyta Cope, 1872 -- valid
  Laemolyta taeniata (Kner, 1858) -- valid
  Laemonema Günther in Johnson, 1862 -- valid
  Laeops Günther, 1880 -- valid
  Laeops kitaharae (Smith & Pope, 1906) -- valid -- khaki flounder
  Laeops microphthalmus von Bonde, 1922 -- invalid
  Laeops nigromaculatus von Bonde, 1922 -- valid -- blackspotted flounder
  Laeops parviceps Günther, 1880 -- valid -- smallheaded flounder
  Laeops pectoralis (von Bonde, 1922) -- valid -- longarm flounder
  Laetacara Kullander, 1986 -- valid
  Laetacara curviceps (Ahl, 1923) -- valid -- flag acara, flag cichlid
  Laetacara dorsiger (Heckel, 1840) -- valid -- redbreast acara, redbreast aequidens, smiling acara, yellowlip acara
  Laetacara flavilabris (Cope, 1870) -- valid
  Laetacara thayeri (Steindachner, 1875) -- valid
  Laeviscutella Poll, Whitehead and Hopson, 1965 -- valid
  Laeviscutella dekimpei Poll, Whitehead and Hopson, 1965 -- valid -- roundbelly pellonuline
  Laevoceratias Parr, 1927 -- invalid
  Lagochila Jordan and Brayton, 1877 -- invalid -- harelip suckers
  Lagochila lacera Jordan and Brayton, 1877 -- invalid -- harelip sucker
  Lagodon Holbrook, 1855 -- valid -- pinfishes
  Laides Jordan, 1919 -- valid
  Laiopteryx Weber, 1913 -- invalid
  Lamiopsis Gill, 1862 -- valid
  Lamiopsis temminckii (Müller and Henle, 1839) -- valid -- broadfin shark
  Lamna caudata DeKay, 1842 -- invalid
  Lamna ditropis Hubbs and Follett, 1947 -- valid -- tiburón salmón, salmon shark
  Lamna nasus (Bonnaterre, 1788) -- valid -- porbeagle, maraîche
  Lamna whitleyi Phillipps, 1935 -- invalid
  Lamnostoma Kaup, 1856 -- valid
  Lamnostoma kampeni (Weber and de Beaufort, 1916) -- valid
  Lamnostoma mindora (Jordan and Richardson, 1908) -- valid
  Lamnostoma orientalis (McClelland, 1844) -- valid
  Lamnostoma taylori (Herre, 1923) -- valid
  Lampadena Goode and Bean in Gill, 1893 -- valid
  Lampanyctus Bonaparte, 1840 -- valid
  Lampris Retzius, 1799 -- valid -- moonfish, opah
  Lamprogrammus Alcock, 1891 -- valid
  Lamprogrammus brunswigi (Brauer, 1906) -- valid
  Lappanella Jordan, 1890 -- valid
  Larabicus Randall and Springer, 1973 -- valid
  Larimus Cuvier in Cuvier and Valenciennes, 1830 -- valid
  Lasiancistrus Regan, 1904 -- valid
  Lasiognathus Regan, 1925 -- valid
  Lates Cuvier in Cuvier and Valenciennes, 1828 -- valid
  Lavinia Girard, 1854 -- valid -- hitches
  Lavinia exilicauda Baird and Girard in Girard, 1854 -- valid -- Hitch
  Lebias Goldfuss, 1820 -- invalid
  Lebiasina Valenciennes in Cuvier and Valenciennes, 1847 -- valid
  Lebiasina bimaculata Valenciennes in Cuvier and Valenciennes, 1847 -- valid -- twospotted lebiasina, twospotted lebiasina
  Lebistes De Filippi, 1861 -- invalid
  Lefua Herzenstein, 1888 -- valid
  Lefua costata (Kessler, 1876) -- valid
  Lefua echigonia Jordan and Richardson, 1907 -- valid
  Lefua nikkonis (Jordan and Fowler, 1903) -- valid
  Leidon Wood, 1846 -- invalid
  Leiocassis Bleeker, 1857 -- valid
  Leiocassis micropogon (Bleeker, 1852) -- valid
  Leiognathus Lacepède, 1802 -- valid
  Leiostomus Lacepède, 1802 -- valid -- spots
  Leius Kner, 1864 -- invalid
  Lepidaplois Gill, 1862 -- invalid
  Lepidarchus Roberts, 1966 -- valid
  Lepidarchus adonis Roberts, 1966 -- valid -- adonis characin, adonis characin
  Lepidion Swainson, 1838 -- valid
  Lepidobero Qin and Jin, 1992 -- valid
  Lepidoblepharon Weber, 1913 -- valid
  Lepidoblepharon ophthalmolepis Weber, 1913 -- valid
  Lepidocephalichthys Bleeker, 1863 -- valid
  Lepidocephalichthys guntea (Hamilton, 1822) -- valid
  Lepidocephalichthys hasselti (Valenciennes in Cuvier and Valenciennes, 1846) -- valid
  Lepidocephalichthys tomaculum Kottelat and Kim, 1992 -- valid
  Lepidocephalus Bleeker, 1859 -- valid
  Lepidocephalus caudofurcatus Tilak and Husain, 1978 -- invalid
  Lepidocephalus guntea (Hamilton, 1822) -- invalid
  Lepidocephalus spectrum Roberts, 1989 -- valid
  Lepidochaetodon Bleeker, 1876 -- invalid
  Lepidogalaxias Mees, 1961 -- valid
  Lepidomeda Cope, 1874 -- valid -- spinedaces
  Lepidomeda albivallis Miller and Hubbs, 1960 -- valid -- White River Spinedace
  Lepidomeda altivelis Miller and Hubbs, 1960 -- valid -- Pahranagat Spinedace
  Lepidomeda mollispinis Miller and Hubbs, 1960 -- valid -- Virgin Spinedace
  Lepidomeda mollispinis mollispinis Miller and Hubbs, 1960 -- valid -- Virgin Spinedace
  Lepidomeda vittata Cope, 1874 -- valid -- Little Colorado Spinedace
  Lepidoperca Regan, 1914 -- valid
  Lepidophanes indicus Nafpaktitis and Nafpaktitis, 1969 -- invalid
  Lepidopsetta bilineata (Ayres, 1855) -- valid -- rock sole, fausse limande du Pacifique, Rock Sole
  Lepidopsetta isolepis Lockington, 1880 -- invalid
  Lepidorhombus Günther, 1862 -- valid
  Lepidorhombus boscii (Risso, 1810) -- valid -- fourspot megrim, fourspot scaldfish
  Lepidorhombus whiffiagonis (Walbaum, 1792) -- valid -- megrim, whiff
  Lepidorhynchus Richardson, 1846 -- valid
  Lepidotrigla Günther, 1860 -- valid
  Lepisosteus oculatus Winchell, 1864 -- valid -- spotted gar, catán pinto, lépisosté tacheté, shortnose gar
  Lepisosteus osseus (Linnaeus, 1758) -- valid -- catán aguja, longnose gar, lépisosté osseux
  Lepisosteus platostomus Rafinesque, 1820 -- valid -- shortnose gar
  Lepisosteus platyrhincus DeKay, 1842 -- valid -- Florida gar
  Lepisosteus spatula Lacepède, 1803 -- invalid
  Lepisostoidei -- invalid
  Lepomis Rafinesque, 1819 -- valid -- common sunfishes, eared sunfishes
  Lepomis gulosus (Cuvier in Cuvier and Valenciennes, 1829) -- valid -- mojarra golosa, crapet sac-à-lait, Warmouth
  Lepophidium Gill, 1895 -- valid
  Leporellus Lütken, 1875 -- valid
  Leporellus vittatus (Valenciennes in Cuvier and Valenciennes, 1850) -- valid
  Leporinus Agassiz in Spix and Agassiz, 1829 -- valid
  Leporinus affinis Günther, 1864 -- invalid
  Leporinus fasciatus altipinnis Borodin, 1929 -- invalid
  Leporinus fasciatus fasciatus (Bloch, 1794) -- valid
  Leporinus fasciatus tigrinus Borodin, 1929 -- invalid
  Leporinus hypselonotus Günther, 1868 -- invalid
  Leporinus margaritaceus Günther, 1864 -- invalid
  Leporinus nigrotaeniatus (Jardine in Schomburgk, 1841) -- valid
  Leporinus novem fasciatus (Bloch, 1794) -- invalid
  Leporinus striatus Kner, 1858 -- valid -- striped leporinus, striped leporinus
  Leptagonus Gill, 1861 -- valid
  Leptobotia Bleeker, 1870 -- valid
  Leptobotia curta (Temminck and Schlegel, 1846) -- valid -- ayumodoki, kissing loach, loach
  Leptobotia flavolineata Wang, 1981 -- valid
  Leptobotia microphthalma Fu and Ye, 1983 -- valid
  Leptobotia pellegrini Fang, 1936 -- valid
  Leptocephalus Scopoli, 1777 -- invalid
  Leptocharias Smith in Müller and Henle, 1838 -- valid
  Leptocharias smithii (Müller and Henle, 1839) -- valid -- barbeled houndshark
  Leptochilichthys Garman, 1899 -- valid
  Leptocottus Girard, 1854 -- valid -- Pacific staghorn sculpins
  Leptocypris Boulenger, 1900 -- valid
  Leptocypris modestus Boulenger, 1900 -- valid
  Leptoderma Vaillant, 1886 -- valid
  Leptodoras Boulenger, 1898 -- valid
  Leptodoras juruensis Boulenger, 1898 -- valid
  Leptojulis Bleeker, 1862 -- valid
  Leptolebias Myers, 1952 -- valid
  Leptolucania Myers, 1924 -- valid -- pygmy killifishes
  Leptonotus Kaup, 1853 -- valid
  Leptoscarus Swainson, 1839 -- valid
  Leptostomias Gilbert, 1905 -- valid
  Leptosynanceia Bleeker, 1874 -- valid
  Lepturichthys Regan, 1911 -- valid
  Lepturichthys dolichopterus Dai, 1985 -- valid
  Lepturichthys nicholsi Hora, 1932 -- invalid
  Lermichthys Hubbs, 1926 -- invalid
  Letharchus Goode and Bean, 1882 -- valid
  Letharchus aliculatus McCosker, 1974 -- valid
  Letharchus opercularis Myers and Wade, 1941 -- invalid
  Letharchus rosenblatti McCosker, 1974 -- valid -- black sailfin eel, tieso vela negro
  Letharchus velifer Goode and Bean, 1882 -- valid -- sailfin eel
  Lethotremus Gilbert, 1896 -- valid
  Leucaspius Heckel and Kner, 1857 -- valid
  Leucaspius delineatus (Heckel, 1843) -- valid -- sun bleak, belica, European sun bleak, moderlieschen
  Leuciscus Cuvier, 1816 -- valid -- European daces
  Leuciscus cephalus (Linnaeus, 1758) -- invalid
  Leuciscus idella Valenciennes in Cuvier and Valenciennes, 1844 -- invalid
  Leuciscus idus (Linnaeus, 1758) -- valid -- ide, orfe
  Leuciscus leuciscus (Linnaeus, 1758) -- valid -- dace, common dace
  Leuciscus lutrensis Baird and Girard, 1853 -- invalid
  Leuciscus pygmaeus DeKay, 1842 -- invalid
  Leucobrotula Koefoed, 1952 -- valid
  Leucochlamys Zugmayer, 1911 -- invalid
  Leuresthes Jordan and Gilbert, 1880 -- valid
  Leuroglossus schmidti Rass, 1955 -- valid -- northern smoothtongue
  Leyvaichthys Dahl, 1960 -- invalid
  Liachirus Günther, 1862 -- valid
  Liachirus nitidus Günther, 1862 -- invalid
  Lienardella Fowler and Bean, 1928 -- invalid
  Lile Jordan and Evermann, 1896 -- valid
  Lile gracilis Castro-Aguirre and Vivero, 1990 -- valid -- graceful herring, sardinita agua dulce
  Lile piquitinga (Schreiner and Miranda Ribeiro, 1903) -- valid -- Atlantic piquitinga
  Lile stolifera (Jordan and Gilbert, 1882) -- valid -- striped herring, sardinita rayada, Pacific piquitinga
  Limanda Gottsche, 1835 -- valid -- mud dabs
  Limanda aspera (Pallas, 1814) -- valid -- yellowfin sole, limande à nageoires jaunes, Yellowfin Sole
  Limanda beanii Goode, 1881 -- invalid
  Limanda herzensteini Jordan & Snyder, 1901 -- invalid
  Limanda korigarei Hubbs, 1915 -- invalid
  Limanda punctatissima (Steindachner, 1879) -- valid -- longsnout flounder, sand flounder, speckled flounder, sunagarei
  Limanda schrenki Schmidt, 1904 -- invalid
  Limanda yokohamae (Günther, 1877) -- invalid
  Limia Poey, 1854 -- valid
  Limnocottus Berg, 1906 -- valid
  Limnothrissa Regan, 1917 -- valid
  Limnothrissa miodon (Boulenger, 1906) -- valid -- Lake Tanganyika sardine
  Limnothrissa stappersii (Poll, 1948) -- valid -- Stapper's sprat
  Linkenchelys Smith, 1989 -- valid
  Linophryne Collett, 1886 -- valid
  Liobagrus Hilgendorf, 1878 -- valid
  Liobagrus andersoni Regan, 1908 -- valid
  Lioglossina Gilbert, 1890 -- invalid
  Liopropoma Gill, 1861 -- valid
  Liopsetta Gill, 1864 -- valid -- eelback flounders
  Liopsetta glacialis (Pallas, 1776) -- valid -- Arctic Flounder, plie arctique
  Liopsetta obscura (Herzenstein, 1890) -- invalid -- dark flounder
  Liopsetta putnami (Gill, 1864) -- valid -- Smooth Flounder, plie lisse, eelback, smoothback flounder
  Lioscorpius Günther, 1880 -- valid
  Liosomadoras Fowler, 1940 -- valid
  Liosomadoras orcinus (Jardine and Schomburgk in Schomburgk, 1841) -- invalid
  Liparis Scopoli, 1777 -- valid -- snailfishes, sea snails
  Lipariscus Gilbert, 1915 -- valid
  Lipariscus nanus Gilbert, 1915 -- valid -- pygmy snailfish
  Lipocheilus Anderson, Talwar and Johnson, 1977 -- valid
  Lipogenys Goode and Bean, 1895 -- valid
  Lipogenys gilli Goode and Bean, 1895 -- invalid
  Lipogramma Böhlke, 1960 -- valid
  Liposarcus Günther, 1864 -- invalid -- sailfin catfishes
  Liposarcus disjunctivus Weber, 1991 -- invalid -- vermiculated sailfin catfish
  Liposarcus multiradiatus (Hancock, 1828) -- invalid -- sailfin catfish
  Lissocampus Waite and Hale, 1921 -- valid
  Lissocampus bannwarthi (Duncker, 1915) -- valid
  Lissocampus fatiloquus (Whitley, 1943) -- valid
  Lissocampus filum (Günther, 1870) -- valid -- shortsnouted pipefish
  Lissocampus runa (Whitley, 1931) -- valid
  Lithognathus Swainson, 1839 -- valid
  Lithognathus mormyrus (Linnaeus, 1758) -- valid
  Lithoxus Eigenmann, 1910 -- valid
  Littocottus Neelov, 1979 -- invalid
  Lobotes Cuvier in Cuvier and Valenciennes, 1830 -- valid
  Lonchistium Myers, 1935 -- invalid
  Lonchopisthus Gill, 1862 -- valid
  Longmania calamaria Whitley, 1944 -- invalid
  Lophichthyinae -- valid
  Lophichthys Boeseman, 1964 -- valid
  Lophiocharon Whitley, 1933 -- valid
  Lophiocharon lithinostomus (Jordan and Richardson, 1908) -- valid -- marble-mouthed frogfish
  Lophiocharon trisignatus (Richardson, 1844) -- valid -- three-spot frogfish
  Lophiodes kempi (Norman, 1935) -- valid -- monkfish, Longspine African angler, baudroie épineuse
  Lophiomus Gill, 1883 -- valid
  Lophius Linnaeus, 1758 -- valid -- rapes, monkfishes, baudroies
  Lophocephalus anthrax Osório, 1906 -- invalid
  Lophodolos Lloyd, 1909 -- valid
  Lopholatilus Goode and Bean, 1879 -- valid
  Lophonectes Günther, 1880 -- valid
  Lophonectes gallus Günther, 1880 -- valid
  Lophotus Giorna, 1809 -- valid
  Loricaria Linnaeus, 1758 -- valid
  Loricaria microlepidogaster Regan, 1904 -- invalid
  Loricaria parva Boulenger, 1895 -- invalid -- whiptail loricaria
  Loricariichthys Bleeker, 1862 -- valid
  Loro Jordan and Evermann, 1896 -- invalid
  Lota Oken, 1817 -- valid -- burbots, eelpouts
  Lotella Kaup, 1858 -- valid -- rock cod, beardie
  Lovettia McCulloch, 1915 -- valid
  Loxodon macrorhinus Müller and Henle, 1839 -- valid -- sliteye shark
  Lucania Girard, 1859 -- valid -- brightfin killifishes
  Lucifuga Poey, 1858 -- valid -- Cuban blind fishes, Cuban blindfish
  Lucifuga dentata Poey, 1858 -- valid -- toothed Cuban cusk-eel
  Lucifuga dentatus Poey, 1858 -- invalid -- toothed Cuban cusk-eel
  Lucifuga simile Nalbant, 1981 -- valid
  Lucifuga spelaeotes Cohen and Robins, 1970 -- valid
  Lucifuga teresinarum Díaz Pérez, 1988 -- valid
  Luciobrama Bleeker, 1870 -- valid
  Luciobrama longiceps Pellegrin, 1907 -- invalid
  Luciobrama macrocephalus (Lacepède, 1803) -- valid
  Luciocyprinus Vaillant, 1904 -- valid
  Luciocyprinus langsoni Vaillant, 1904 -- valid
  Luciopimelodus Eigenmann and Eigenmann, 1888 -- valid
  Luciosoma Bleeker, 1855 -- valid
  Luciosoma trinema (Bleeker, 1852) -- valid
  Lumiconger Castle and Paxton, 1984 -- valid
  Lumiconger arafura Castle and Paxton, 1984 -- valid
  Lumpenus medius Reinhardt, 1836 -- invalid -- stout eelblenny, lompénie naine
  Lunolabrus Whitley, 1933 -- invalid
  Lutjanus Bloch, 1790 -- valid -- common snappers, Snappers, vivaneaux, pargos tropicales
  Lutjanus lineolatus (Rüppell, 1829) -- invalid -- golden-striped snapper
  Luxilus Rafinesque, 1820 -- valid -- highscale shiners
  Luxilus albeolus (Jordan, 1889) -- valid -- White Shiner
  Luxilus cardinalis (Mayden, 1988) -- valid -- Cardinal Shiner
  Luxilus cerasinus (Cope, 1868) -- valid -- Crescent Shiner
  Luxilus chrysocephalus Rafinesque, 1820 -- valid -- méné rayé, Striped Shiner
  Luxilus coccogenis (Cope, 1868) -- valid -- Warpaint Shiner
  Luxilus cornutus (Mitchill, 1817) -- valid -- Common Shiner, méné à nageoires rouges
  Luxilus pilsbryi (Fowler, 1904) -- valid -- Duskystripe Shiner
  Luxilus zonatus (Putnam, 1863) -- valid -- Bleeding Shiner
  Luxilus zonistius Jordan, 1880 -- valid -- Bandfin Shiner
  Luzonichthys Herre, 1936 -- valid
  Lycengraulis Günther, 1868 -- valid
  Lycengraulis grossidens (Agassiz in Spix and Agassiz, 1829) -- valid -- Atlantic sabretooth anchovy
  Lycengraulis poeyi (Kner, 1863) -- valid -- Pacific sabretooth anchovy
  Lycengraulis schroederi Hildebrand, 1943 -- invalid
  Lycodontis Jordan and Evermann, 1896 -- invalid
  Lycodontis anatinus (Lowe, 1838) -- invalid
  Lycodontis vicinus (Castelnau, 1855) -- invalid
  Lyconodes Gilchrist, 1922 -- valid
  Lycothrissa Günther, 1868 -- valid
  Lycothrissa crocodilus (Bleeker, 1851) -- valid -- sabretoothed thryssa
  Lythrurus Jordan, 1876 -- valid -- finescale shiners
  Lythrurus ardens (Cope, 1868) -- valid -- Rosefin Shiner
  Lythrurus atrapiculus (Snelson, 1972) -- valid -- Blacktip Shiner
  Lythrurus bellus (Hay, 1881) -- valid -- Pretty Shiner
  Lythrurus fasciolaris (Gilbert, 1891) -- valid -- scarletfin shiner, Scarlet Shiner
  Lythrurus fumeus (Evermann, 1892) -- valid -- Ribbon Shiner
  Lythrurus lirus (Jordan, 1877) -- valid -- Mountain Shiner
  Lythrurus matutinus (Cope, 1870) -- valid -- pinewood shiner, Pinewoods Shiner
  Lythrurus roseipinnis (Hay in Jordan, 1885) -- valid -- Cherryfin Shiner
  Lythrurus snelsoni (Robison, 1985) -- valid -- Ouachita Shiner, Ouachita Mountain shiner
  Lythrurus umbratilis (Girard, 1856) -- valid -- Redfin Shiner
  Maccullochella Whitley, 1929 -- valid
  Macdonaldia africana Gilchrist and Von Bonde, 1924 -- invalid
  Macdonaldia alta Gill and Townsend, 1897 -- invalid
  Macdonaldia longa Gill and Townsend, 1897 -- invalid
  Macdonaldia rostrata (Collett, 1889) -- invalid
  Macolor Bleeker, 1860 -- valid
  Macquaria Cuvier in Cuvier and Valenciennes, 1830 -- valid
  Macrhybopsis Cockerell and Allison, 1909 -- valid -- blacktail chubs
  Macrhybopsis australis (Hubbs and Ortenburger, 1929) -- valid -- Prairie Chub, Red River chub
  Macrhybopsis gelida (Girard, 1856) -- valid -- Sturgeon Chub, sicklefin chub
  Macrhybopsis meeki (Jordan and Evermann, 1896) -- valid -- Sicklefin Chub, sturgeon chub
  Macrhybopsis storeriana (Kirtland, 1845) -- valid -- méné à grandes écailles, Silver Chub
  Macrocephenchelys Fowler, 1934 -- valid
  Macrocephenchelys brachialis Fowler, 1934 -- valid
  Macrochoerodon Fowler and Bean, 1928 -- invalid
  Macrognathus Lacepède, 1800 -- valid
  Macrones Duméril, 1856 -- invalid
  Macrones keletius (Valenciennes in Cuvier and Valenciennes, 1840) -- invalid
  Macropharyngodon Bleeker, 1862 -- valid
  Macropinna Chapman, 1939 -- valid
  Macroramphosus Lacepède, 1803 -- valid -- snipefishes
  Macrorhamphosus elevatus Waite, 1899 -- invalid -- longspine bellows-fish, longspine bellows-fish
  Macrostomias Brauer, 1902 -- invalid
  Macrotrema Regan, 1912 -- valid
  Macrouroides Smith and Radcliffe in Radcliffe, 1912 -- valid
  Macrourus Bloch, 1786 -- valid
  Macrurocyttus Fowler, 1934 -- valid
  Macruronus Günther, 1873 -- valid
  Malacanthus Cuvier, 1829 -- valid
  Malacocentrus Gill, 1862 -- invalid
  Malacocephalus Günther, 1862 -- valid
  Malacocottus Bean, 1890 -- valid
  Malacoglanis Myers and Weitzman, 1966 -- valid
  Malacoraja Stehmann, 1970 -- valid -- soft skates
  Malacoraja purpuriventralis (Bigelow and Schroeder, 1962) -- invalid
  Malacosarcus Günther, 1887 -- valid
  Malacosarcus macrostoma (Günther, 1878) -- valid
  Malacosteus Ayres, 1848 -- valid
  Malakichthys Döderlein in Steindachner and Döderlein, 1883 -- valid
  Malapterurus Lacepède, 1803 -- valid
  Malapterurus electricus (Gmelin, 1789) -- valid -- electric catfish
  Malapterurus microstoma Poll and Gosse, 1969 -- valid
  Malapterus Valenciennes in Cuvier and Valenciennes, 1839 -- valid
  Mallotus Cuvier, 1829 -- valid -- capelins
  Malthopsis Alcock, 1891 -- valid
  Manacopus Herre, 1940 -- invalid
  Mancopsetta Gill, 1881 -- valid
  Manducus Goode and Bean, 1896 -- valid
  Manta alfredi (Krefft, 1868) -- invalid
  Manta birostris (Walbaum, 1792) -- valid -- manta gigante, giant manta, Atlantic manta, manta, Pacific manta
  Manta ehrenbergii (Müller and Henle, 1841) -- valid
  Manta hamiltoni (Hamilton and Newman in Newman, 1849) -- valid
  Marcusenius Gill, 1862 -- valid
  Marcusenius abadii (Boulenger, 1901) -- valid
  Marcusenius annamariae (Parenzan, 1939) -- valid
  Marcusenius bentleyi (Boulenger, 1897) -- valid
  Marcusenius brucii (Boulenger, 1910) -- valid
  Marcusenius bruyerei (Pellegrin, 1904) -- invalid
  Marcusenius conicephalus Taverne, Thys van den Audenaerde and Heymer, 1976 -- invalid
  Marcusenius cuangoanus (Poll, 1967) -- valid
  Marcusenius cyprinoides (Linnaeus, 1758) -- valid
  Marcusenius dundoensis (Poll, 1967) -- valid
  Marcusenius friteli (Pellegrin, 1904) -- valid
  Marcusenius furcidens (Pellegrin, 1920) -- valid
  Marcusenius fuscus (Pellegrin, 1901) -- valid
  Marcusenius ghesquierei (Poll, 1945) -- valid
  Marcusenius gilli (Boulenger, 1904) -- invalid
  Marcusenius gracilis (Pellegrin, 1922) -- invalid
  Marcusenius greshoffii (Schilthuis, 1891) -- valid
  Marcusenius intermedius Pellegrin, 1924 -- valid
  Marcusenius kutuensis (Boulenger, 1899) -- valid
  Marcusenius leopoldianus (Boulenger, 1899) -- valid
  Marcusenius livingstonii (Boulenger, 1899) -- valid
  Marcusenius macrolepidotus (Peters, 1852) -- valid
  Marcusenius macrophthalmus (Pellegrin, 1924) -- valid
  Marcusenius mento (Boulenger, 1890) -- valid
  Marcusenius monteiri (Günther, 1873) -- valid
  Marcusenius moorii (Günther, 1867) -- valid
  Marcusenius ntemensis (Pellegrin, 1927) -- valid
  Marcusenius nyasensis (Worthington, 1933) -- valid
  Marcusenius paucisquamatus Taverne, Thys van den Audenaerde and Heymer, 1976 -- invalid
  Marcusenius rheni (Fowler, 1936) -- valid
  Marcusenius rhodesianus (Määr, 1962) -- valid
  Marcusenius schilthuisiae (Boulenger, 1899) -- valid
  Marcusenius senegalensis (Steindachner, 1870) -- valid
  Marcusenius senegalensis pfaffi (Fowler, 1958) -- valid
  Marcusenius senegalensis senegalensis (Steindachner, 1870) -- valid
  Marcusenius thomasi (Boulenger, 1916) -- valid
  Marcusenius ussheri (Günther, 1867) -- valid
  Margariscus Cockerell, 1909 -- valid -- pearl daces
  Margariscus margarita (Cope, 1867) -- valid -- Allegheny Pearl Dace, pearl dace, mulet perlé
  Margaritodon Smith, 1956 -- invalid
  Margrethia Jespersen and Tċning, 1919 -- valid
  Marleyella Fowler, 1925 -- valid
  Marleyella bicolorata (von Bonde, 1922) -- valid
  Marleyella maldivensis Norman, 1939 -- valid
  Marukawichthys Sakamoto, 1931 -- valid
  Marzapanus Facciolà, 1916 -- invalid
  Mastacembelus Scopoli, 1777 -- valid
  Maulisia Parr, 1960 -- valid
  Maurolicus Cocco, 1838 -- valid
  Maurolicus oculatus Garman, 1899 -- invalid
  Maxillicosta Whitley, 1935 -- valid
  Meda Girard, 1856 -- valid -- spikedaces
  Meda fulgida Girard, 1856 -- valid -- carpita aguda, Spikedace
  Megachasma pelagios Taylor, Compagno and Struhsaker, 1983 -- valid -- tiburón bocón, megamouth shark
  Megalamphodus Eigenmann, 1915 -- invalid
  Megalamphodus megalopterus Eigenmann, 1915 -- invalid -- black phantom tetra, black phantom tetra
  Megalamphodus sweglesi Géry, 1961 -- invalid -- red phantom tetra, red phantom tetra
  Megalechis Reis, 1997 -- valid
  Megalechis thoracata (Valenciennes in Cuvier and Valenciennes, 1840) -- valid
  Megalocottus Gill, 1861 -- valid
  Megalomycter Myers and Freihofer, 1966 -- valid
  Megalomycter teevani Myers and Freihofer, 1966 -- valid
  Megalops Lacepède, 1803 -- valid -- tarpons
  Megaprotodon Guichenot, 1848 -- invalid
  Megupsilon Miller and Walters, 1972 -- valid
  Melamphaes Günther, 1864 -- valid
  Melamphaes acanthomus Ebeling, 1962 -- valid
  Melamphaes ebelingi Keene, 1973 -- valid
  Melamphaes eulepis Ebeling, 1962 -- valid
  Melamphaes hubbsi Ebeling, 1962 -- valid
  Melamphaes leprus Ebeling, 1962 -- valid
  Melamphaes longivelis Parr, 1933 -- valid
  Melamphaes lugubris Gilbert, 1891 -- valid -- highsnout melamphid, highsnout melamphid
  Melamphaes megalops Lütken, 1878 -- invalid
  Melamphaes microlepis Norman, 1937 -- invalid
  Melamphaes microps (Günther, 1878) -- valid
  Melamphaes nycterinus Gilbert, 1915 -- invalid
  Melamphaes polylepis Ebeling, 1962 -- valid
  Melamphaes pumilus Ebeling, 1962 -- valid
  Melamphaes simus Ebeling, 1962 -- valid
  Melamphaes spinifer Ebeling, 1962 -- valid
  Melamphaes suborbitalis (Gill, 1883) -- valid
  Melamphaes triceratops Roule and Angel, 1933 -- invalid
  Melamphaes typhlops (Lowe, 1843) -- valid
  Melaniris Meek, 1902 -- invalid
  Melanocetus Günther, 1864 -- valid
  Melanocharacidium Buckup, 1993 -- valid
  Melanocharacidium dispilomma Buckup, 1993 -- valid
  Melanogrammus Gill, 1862 -- valid -- haddocks
  Melanonus Günther, 1878 -- valid
  Melanorhinus Metzelaar, 1919 -- valid
  Melanostomias Brauer, 1902 -- valid
  Melapedalion Fowler, 1934 -- valid
  Membras Bonaparte, 1836 -- valid -- smoothscaled silversides, rough silversides
  Mene Lacepède, 1803 -- valid
  Menephorus Poey, 1871 -- invalid
  Menidia Bonaparte, 1836 -- valid -- Atlantic silversides
  Menticirrhus Gill, 1861 -- valid -- kingfishes, weakfishes
  Merlangius Geoffroy, 1767 -- valid
  Merluccius Rafinesque, 1810 -- valid -- hakes
  Merolepis Rafinesque, 1810 -- invalid
  Mesobius Hubbs and Iwamoto, 1977 -- valid
  Mesobola Howes, 1984 -- valid
  Mesobola brevianalis (Boulenger, 1908) -- valid
  Mesoborus Pellegrin, 1900 -- valid
  Mesoborus crocodilus Pellegrin, 1900 -- valid
  Mesocottus Gratzianov, 1907 -- valid
  Mesonauta Günther, 1862 -- valid
  Metacottus Taliev, 1946 -- invalid
  Meteoria Nielsen, 1969 -- valid
  Metopomycter Gilbert, 1905 -- invalid
  Metynnis Cope, 1878 -- valid
  Metynnis argenteus Ahl, 1923 -- valid -- silver dollar, silver dollar
  Metynnis hypsauchen (Müller and Troschel, 1844) -- valid
  Metynnis maculatus (Kner, 1858) -- valid
  Meuschenia Whitley, 1929 -- valid
  Meuschenia scaber (Forster in Bloch & Schneider, 1801) -- valid -- rough leatherjacket
  Micraethiops Daget, 1965 -- invalid
  Micraethiops ansorgii (Boulenger, 1912) -- invalid
  Micralestes Boulenger, 1899 -- valid
  Micralestes acutidens (Peters, 1852) -- valid
  Micralestes interruptus Boulenger, 1899 -- invalid
  Micrenophrys Andriashev, 1954 -- valid
  Microbrotula Gosline, 1953 -- valid
  Microcharacidium Buckup, 1993 -- valid
  Microcharacidium weitzmani Buckup, 1993 -- valid
  Microchirus Bonaparte, 1833 -- valid
  Microchirus ocellatus (Linnaeus, 1758) -- valid -- eyed sole
  Microchirus variegatus (Donovan, 1808) -- valid -- thickback sole
  Microcorydoras Myers, 1953 -- invalid
  Microcottus Schmidt, 1940 -- valid
  Microctenopoma Norris, 1995 -- valid
  Microctenopoma ansorgii (Boulenger, 1912) -- valid
  Microctenopoma fasciolatum (Boulenger, 1899) -- valid
  Microdesmus Günther, 1864 -- valid
  Microdesmus lanceolatus Dawson, 1962 -- valid -- lancetail wormfish
  Microdesmus longipinnis (Weymouth, 1910) -- valid -- pink wormfish
  Microdonophis Kaup, 1856 -- invalid
  Microgadus Gill, 1865 -- valid -- tomcods
  Microglanis Eigenmann, 1912 -- valid
  Micrognathus Duncker, 1912 -- valid
  Microichthys Rüppell, 1852 -- valid
  Microlepidotus Gill, 1862 -- valid
  Microlophichthys Burton, 1932 -- valid
  Micromesistius Gill, 1863 -- valid
  Micromischodus Roberts, 1971 -- valid
  Micromischodus sugillatus Roberts, 1971 -- valid
  Microphis Kaup, 1853 -- valid -- freshwater pipefishes
  Microphis fluviatilis (Peters, 1852) -- valid -- freshwater pipefish
  Microphysogobio Mori, 1934 -- valid
  Microphysogobio linghensis Xie, 1986 -- valid
  Micropodus Rafinesque, 1815 -- invalid
  Micropogon Cuvier in Cuvier and Valenciennes, 1830 -- invalid
  Micropogonias Bonaparte, 1831 -- valid -- finebarbel croakers
  Micropterus Lacepède, 1802 -- valid -- black basses, largemouth basses
  Micropus Gray, 1831 -- invalid
  Microstoma Cuvier, 1816 -- valid
  Microstomatichthyoborus Nichols and Griscom, 1917 -- valid
  Microstomatichthyoborus bashforddeani Nichols and Griscom, 1917 -- valid
  Microstomatichthyoborus katangae David and Poll, 1937 -- valid
  Microstomus Gottsche, 1835 -- valid -- smear dabs
  Microstomus kitaharae Jordan & Starks, 1904 -- invalid
  Microstomus kitaharai Jordan & Starks, 1904 -- invalid
  Microstomus pacificus (Lockington, 1879) -- valid -- Dover sole, platija resbalosa, Dover Sole, limande-sole
  Microstomus shuntovi Borets, 1983 -- valid
  Microstomus stelleri Schmidt, 1904 -- invalid
  Microsynodontis Boulenger, 1903 -- valid
  Microsynodontis polli Lambert, 1958 -- valid
  Microthrissa Boulenger, 1902 -- valid
  Microthrissa congica (Regan, 1917) -- invalid
  Microthrissa minuta Poll, 1974 -- valid -- Dungu sprat
  Microthrissa moeruensis (Poll, 1948) -- invalid
  Microthrissa normani Whitehead, 1986 -- invalid -- muffin sprat
  Microthrissa royauxi Boulenger, 1902 -- valid -- royal sprat
  Microthrissa whiteheadi Gourène and Teugels, 1988 -- valid
  Mimagoniates Regan, 1907 -- valid
  Mimagoniates barberi Regan, 1907 -- valid
  Mimagoniates lateralis (Nichols, 1913) -- valid
  Minilabrus Randall and Dor, 1980 -- valid
  Minous Cuvier in Cuvier and Valenciennes, 1829 -- valid
  Minytrema Jordan, 1878 -- valid -- spotted suckers
  Mirapinna Bertelsen and Marshall, 1956 -- valid
  Mirapinna esau Bertelsen and Marshall, 1956 -- valid
  Mirophallus Herre, 1926 -- invalid
  Mirorictus Parr, 1947 -- valid
  Miroscyllium shiekoi (Dolganov, 1986) -- valid
  Misgurnus Lacepède, 1803 -- valid -- weatherfishes
  Misgurnus anguillicaudatus (Cantor, 1842) -- valid -- oriental weatherfish, dojo, Japanese weatherfish
  Misgurnus fossilis (Linnaeus, 1758) -- valid -- weatherfish
  Mitsukurina Jordan, 1898 -- valid
  Mitsukurina owstoni Jordan, 1898 -- valid -- goblin shark
  Miuroglanis Eigenmann and Eigenmann, 1889 -- valid
  Mixomyrophis McCosker, 1985 -- valid
  Mixomyrophis pusillipinna McCosker, 1985 -- valid -- mosaic worm eel
  Moapa Hubbs and Miller, 1948 -- invalid -- Moapa daces
  Moapa coriacea Hubbs and Miller, 1948 -- invalid -- Moapa dace
  Mobula coilloti Cadenat and Rancurel, 1960 -- valid
  Mobula diabolus (Shaw, 1804) -- valid
  Mobula eregoodootenkee (Bleeker, 1859) -- valid
  Mobula hypostoma (Bancroft, 1831) -- valid -- manta del Golfo, devil ray, Atlantic devil ray, manta enana
  Mobula japanica (Müller and Henle, 1841) -- valid -- manta arpón, spinetail mobula
  Mobula kuhlii (Müller and Henle, 1841) -- valid
  Mobula lucasana Beebe and Tee-Van, 1938 -- invalid
  Mobula mobular (Bonnaterre, 1788) -- valid -- devil fish, devil ray, giant devil ray, manta mobula
  Mobula olfersii (Müller, 1834) -- invalid
  Mobula rochebrunei (Vaillant, 1879) -- valid
  Mobula tarapacana (Philippi, 1893) -- valid -- sicklefin devil ray, manta cornuda
  Mobula thurstoni (Lloyd, 1908) -- valid -- manta doblada, smoothtail mobula
  Mochokus Joannis, 1835 -- valid
  Mochokus niloticus Joannis, 1835 -- valid
  Moema Costa, 1989 -- valid
  Moenkhausia Eigenmann, 1903 -- valid
  Moenkhausia bondi (Fowler, 1911) -- invalid
  Moenkhausia collettii (Steindachner, 1882) -- valid -- colletti tetra, colletti tetra
  Moenkhausia intermedia Eigenmann, 1908 -- valid
  Moenkhausia pittieri Eigenmann, 1920 -- valid -- diamond characin, diamond characin, Pittier's tetra
  Mollisquama Dolganov, 1984 -- valid
  Mollisquama parini Dolganov, 1984 -- valid
  Molva Lesueur, 1819 -- valid -- European lings
  Molva macrophthalma (Rafinesque, 1810) -- valid -- Mediterranean ling
  Monochirus Rafinesque, 1814 -- valid
  Monochirus luteus (Risso, 1810) -- invalid
  Monognathus Bertin, 1936 -- valid
  Monognathus ahlstromi Raju, 1974 -- valid
  Monognathus berteli Nielsen and Hartel, 1996 -- valid
  Monognathus bertini Bertelsen and Nielsen, 1987 -- valid
  Monognathus boehlkei Bertelsen and Nielsen, 1987 -- valid
  Monognathus bruuni Bertin, 1936 -- valid
  Monognathus herringi Bertelsen and Nielsen, 1987 -- valid
  Monognathus isaacsi Raju, 1974 -- valid
  Monognathus jesperseni Bertin, 1936 -- valid
  Monognathus jesse Raju, 1974 -- valid
  Monognathus nigeli Bertelsen and Nielsen, 1987 -- valid
  Monognathus ozawai Bertelsen and Nielsen, 1987 -- valid
  Monognathus rajui Bertelsen and Nielsen, 1987 -- valid
  Monognathus rosenblatti Bertelsen and Nielsen, 1987 -- valid
  Monognathus smithi Bertelsen and Nielsen, 1987 -- valid
  Monognathus taningi Bertin, 1936 -- valid
  Monolene Goode, 1880 -- valid
  Monolene antillarum Norman, 1933 -- valid -- slim flounder, Slim Flounder
  Monolene atrimana Goode & Bean, 1886 -- valid
  Monolene megalepis Woods, 1961 -- valid
  Monolene sessilicauda Goode, 1880 -- valid -- deepwater flounder, cardeau des profondeurs, Deepwater Flounder
  Monomitopus Alcock, 1890 -- valid
  Monomitopus agassizii (Goode and Bean, 1896) -- valid
  Monopenchelys Böhlke and McCosker, 1982 -- valid
  Monopenchelys acuta (Parr, 1930) -- valid -- redface eel, redface moray, morena rubicunda
  Monopterus Lacepède, 1800 -- valid -- jowled swamp eels
  Monopterus cuchia (Hamilton, 1822) -- invalid -- cuchia, rice eel, swamp eel
  Monotaxis Bennett, 1830 -- valid
  Montereya Hubbs, 1926 -- invalid
  Mora Risso, 1827 -- valid
  Moringua Gray, 1831 -- valid
  Moringua edwardsi (Jordan and Bollman, 1889) -- valid -- spaghetti eel, morenita de arena, morenita
  Moringua javanica (Kaup, 1856) -- valid
  Moringua microchir Bleeker, 1853 -- valid -- spaghetti eel
  Mormyrops Müller, 1843 -- valid
  Mormyrops anguilloides (Linnaeus, 1758) -- valid
  Mormyrops anguilloides voltae Roman, 1966 -- invalid
  Mormyrops attenuatus Boulenger, 1898 -- valid
  Mormyrops batesianus Boulenger, 1909 -- valid
  Mormyrops bougouribaensis Roman, 1966 -- invalid
  Mormyrops boulengeri Pellegrin, 1900 -- invalid
  Mormyrops breviceps Steindachner, 1894 -- valid
  Mormyrops caballus Pellegrin, 1927 -- valid
  Mormyrops citernii Vinciguerra, 1912 -- valid
  Mormyrops curtus Boulenger, 1899 -- valid
  Mormyrops deliciosus (Leach, 1818) -- invalid -- cornish-jack
  Mormyrops elongatus Norman, 1935 -- invalid
  Mormyrops engystoma Boulenger, 1898 -- valid
  Mormyrops furcidens Pellegrin, 1900 -- valid
  Mormyrops mariae (Schilthuis, 1891) -- valid
  Mormyrops masuianus Boulenger, 1898 -- valid
  Mormyrops microstoma Boulenger, 1898 -- valid
  Mormyrops oudoti Daget, 1954 -- valid
  Mormyrops parvus Boulenger, 1899 -- valid
  Mormyrops sirenoides Boulenger, 1898 -- valid
  Mormyrops zanclirostris (Günther, 1867) -- invalid
  Mormyrus Linnaeus, 1758 -- valid
  Mormyrus bernhardi Pellegrin, 1926 -- valid
  Mormyrus caballus Boulenger, 1898 -- valid
  Mormyrus caballus asinus Boulenger, 1915 -- valid
  Mormyrus caballus bumbanus Boulenger, 1909 -- valid
  Mormyrus caballus lualabae Reizer, 1964 -- valid
  Mormyrus casalis Vinciguerra, 1922 -- valid
  Mormyrus caschive Linnaeus, 1758 -- valid
  Mormyrus cyaneus Roberts and Stewart, 1976 -- valid
  Mormyrus felixi Pellegrin, 1939 -- valid
  Mormyrus goheeni Fowler, 1919 -- valid
  Mormyrus hasselquistii Valenciennes in Cuvier and Valenciennes, 1847 -- valid
  Mormyrus hasselquistii hasselquistii Valenciennes in Cuvier and Valenciennes, 1847 -- valid
  Mormyrus iriodes Roberts and Stewart, 1976 -- valid
  Mormyrus kannume Forsskċl, 1775 -- valid -- elephant-snout fish
  Mormyrus lacerda Castelnau, 1861 -- valid -- bottle-nose, ndikusi, western bottlenose mormyrid
  Mormyrus longirostris Peters, 1852 -- valid -- amalompi, bottle-nose, eastern bottlenose mormyrid, hotama
  Mormyrus macrocephalus Worthington, 1929 -- valid
  Mormyrus macrophthalmus Günther, 1866 -- valid
  Mormyrus niloticus (Bloch and Schneider, 1801) -- valid
  Mormyrus ovis Boulenger, 1898 -- valid
  Mormyrus rume Valenciennes in Cuvier and Valenciennes, 1847 -- valid
  Mormyrus rume proboscirostris Boulenger, 1898 -- valid
  Mormyrus tamandua Günther, 1864 -- invalid
  Mormyrus tapirus Pappenheim, 1905 -- valid
  Mormyrus tenuirostris Peters, 1882 -- valid
  Mormyrus thomasi Pellegrin, 1938 -- valid
  Mormyrynchus Swainson, 1839 -- invalid
  Mormyrynchus gronovii Swainson, 1839 -- invalid
  Morone Mitchill, 1814 -- valid -- striped basses
  Morulius Hamilton, 1822 -- invalid
  Morulius calbasu (Hamilton, 1822) -- invalid
  Moxostoma Rafinesque, 1820 -- valid -- redhorse suckers, redhorses
  Moxostoma anisurum (Rafinesque, 1820) -- valid -- Silver Redhorse, chevalier blanc
  Moxostoma ariommum Robins and Raney, 1956 -- valid -- Bigeye Jumprock
  Moxostoma atripinne Bailey, 1959 -- invalid -- blackfin sucker
  Moxostoma breviceps (Cope, 1870) -- valid -- Smallmouth Redhorse, hookfin redhorse
  Moxostoma carinatum (Cope, 1870) -- valid -- River Redhorse, chevalier de rivière
  Moxostoma cervinum (Cope, 1868) -- valid -- black jumprock, Blacktip Jumprock
  Moxostoma collapsum (Cope, 1870) -- valid -- piedmont redhorse, Notchlip Redhorse
  Moxostoma congestum (Baird and Girard, 1854) -- valid -- Gray Redhorse, matalote gris
  Moxostoma duquesnei (Lesueur, 1817) -- valid -- Black Redhorse, chevalier noir
  Moxostoma duquesnii (Lesueur, 1817) -- invalid -- black redhorse
  Moxostoma erythrurum (Rafinesque, 1818) -- valid -- Golden Redhorse, chevalier doré
  Moxostoma hamiltoni (Raney and Lachner, 1946) -- invalid -- rustyside sucker
  Moxostoma hubbsi Legendre, 1952 -- valid -- Copper Redhorse, chevalier cuivré
  Moxostoma lacerum (Jordan and Brayton, 1877) -- valid -- hairlip redhorse, Harelip Sucker
  Moxostoma lachneri Robins and Raney, 1956 -- valid -- Greater Jumprock
  Moxostoma macrolepidotum breviceps (Cope, 1870) -- invalid
  Moxostoma macrolepidotum macrolepidotum (Lesueur, 1817) -- invalid
  Moxostoma macrolepidotum pisolabrum Trautman and Martin, 1951 -- invalid
  Moxostoma pappillosum (Cope, 1870) -- valid -- suckermouth redhorse, V-lip Redhorse, slender redhorse
  Moxostoma pisolabrum Trautman and Martin, 1951 -- valid -- Pealip Redhorse
  Moxostoma poecilurum Jordan, 1877 -- valid -- blacktail redhorse
  Moxostoma rhothoecum (Thoburn in Jordan and Evermann, 1896) -- invalid -- torrent sucker
  Moxostoma robustum (Cope, 1870) -- valid -- smallfin redhorse, Robust Redhorse
  Moxostoma rupiscartes Jordan and Jenkins in Jordan, 1889 -- valid -- Striped Jumprock
  Moxostoma valenciennesi Jordan, 1885 -- valid -- Greater Redhorse, chevalier jaune
  Mullidae -- valid -- goat fishes, chivos, surmulets, goatfishes, red mullets, surmullets
  Mulloides Bleeker, 1849 -- invalid
  Mulloidichthys Whitley, 1929 -- valid
  Mullus Linnaeus, 1758 -- valid -- mullets
  Muraena Linnaeus, 1758 -- valid
  Muraena africana Shaw, 1803 -- invalid
  Muraena anatina Lowe, 1838 -- invalid
  Muraena annulata Ahl, 1789 -- invalid
  Muraena atomaria Solander in Richardson, 1848 -- invalid
  Muraena auloptera De Filippi, 1853 -- invalid
  Muraena australiae Richardson, 1848 -- invalid
  Muraena balearica Delaroche, 1809 -- invalid
  Muraena caeca Linnaeus, 1758 -- invalid
  Muraena clepsydra Gilbert in Jordan and Evermann, 1898 -- valid -- hourglass moray, morena clepsidra
  Muraena conger Linnaeus, 1758 -- invalid
  Muraena echidna Gmelin, 1789 -- invalid
  Muraena erythroptera Solander in Richardson, 1848 -- invalid
  Muraena euptera Günther, 1870 -- invalid
  Muraena fasciata Ahl, 1789 -- invalid
  Muraena gymnopterus Bleeker, 1853 -- invalid
  Muraena halmaherensis Bleeker, 1863 -- invalid
  Muraena helena Linnaeus, 1758 -- valid -- moray eel, murry
  Muraena isingteena Richardson, 1845 -- invalid
  Muraena krulli Hector, 1877 -- invalid
  Muraena lentiginosa Jenyns, 1842 -- valid -- jewel moray, morena pinta
  Muraena longicauda Peters, 1877 -- invalid
  Muraena manillensis Bleeker, 1865 -- invalid
  Muraena melanotis (Kaup, 1860) -- valid
  Muraena miliaris (Kaup, 1856) -- invalid -- conger moray, goldentail moray
  Muraena molendinaris Bennett, 1833 -- invalid
  Muraena monochrous Bleeker, 1856 -- invalid
  Muraena monostigma Regan, 1909 -- invalid
  Muraena myrus Linnaeus, 1758 -- invalid
  Muraena mystax Delaroche, 1809 -- invalid
  Muraena ophis Linnaeus, 1758 -- invalid
  Muraena pardalis Temminck and Schlegel, 1846 -- invalid -- dragon moray eel, Hawaiian dragon eel
  Muraena pavonina Richardson, 1845 -- valid -- flagged moray
  Muraena raitaborua Hamilton, 1822 -- invalid
  Muraena retifera Goode and Bean, 1882 -- valid -- reticulate moray, morena reticulada
  Muraena robusta Osório, 1911 -- valid -- stout moray
  Muraena serpens Linnaeus, 1758 -- invalid
  Muraena shirleyi Griffin, 1933 -- invalid
  Muraena similis Richardson, 1848 -- invalid
  Muraena tessellata Richardson, 1845 -- invalid
  Muraena tuhua Griffin, 1933 -- invalid
  Muraena vagrans Seale, 1917 -- invalid
  Muraena venosa Kaup, 1856 -- invalid
  Muraenesox McClelland, 1844 -- valid
  Muraenesox cinereus (Forsskċl, 1775) -- valid -- daggertooth pike conger, morénesoce dague, morenocio dentón
  Muraenesox talabonoides (Bleeker, 1853) -- invalid -- Indian putyekanipa
  Muraenichthys Bleeker, 1853 -- valid
  Muraenichthys acutirostris Weber and de Beaufort, 1916 -- invalid
  Muraenichthys australis Macleay, 1881 -- invalid
  Muraenichthys breviceps Günther, 1876 -- invalid
  Muraenichthys chilensis McCosker, 1970 -- invalid
  Muraenichthys cookei Fowler, 1928 -- invalid
  Muraenichthys devisi Fowler, 1907 -- invalid
  Muraenichthys godeffroyi Regan, 1909 -- invalid
  Muraenichthys gymnopterus (Bleeker, 1853) -- valid -- longfinned worm eel
  Muraenichthys gymnotus Bleeker, 1857 -- invalid -- slender worm eel
  Muraenichthys hattae Jordan and Snyder, 1901 -- invalid
  Muraenichthys iredalei Whitley, 1927 -- invalid -- Iredale's worm eel
  Muraenichthys laticaudatus (Ogilby, 1897) -- valid -- redfin worm eel
  Muraenichthys macropterus Bleeker, 1857 -- valid
  Muraenichthys macrostomus Bleeker, 1865 -- valid
  Muraenichthys schultzei Bleeker, 1857 -- valid
  Muraenichthys sibogae Weber and de Beaufort, 1916 -- valid
  Muraenichthys thompsoni Jordan and Richardson, 1908 -- valid
  Muraenichthys vermiformis (Peters, 1866) -- invalid -- shortfinned worm eel
  Muraenichthys xorae Smith, 1958 -- invalid -- orangehead worm eel
  Muraenolepis Günther, 1880 -- valid
  Muraenophis unicolor Delaroche, 1809 -- invalid
  Murenophis vicina Castelnau, 1855 -- invalid
  Murmille Setna and Sarangdhar ex Gistel, 1946 -- invalid
  Mustelus abbotti Evermann and Radcliffe, 1917 -- invalid
  Mustelus antarcticus Günther, 1870 -- valid -- gummy shark
  Mustelus asterias Cloquet, 1821 -- valid -- starry smooth-hound
  Mustelus californicus Gill, 1864 -- valid -- cazón mamón, gray smoothhound
  Mustelus dorsalis Gill, 1864 -- valid -- sharptooth smooth-hound, sharptooth smoothhound, cazón tripa
  Mustelus edulis Perez Canto, 1886 -- invalid
  Mustelus equestris Bonaparte, 1834 -- invalid
  Mustelus griseus Pietschmann, 1908 -- valid -- spotless smooth-hound
  Mustelus higmani Springer and Lowe, 1963 -- valid -- smalleye smooth-hound
  Mustelus laevis Linck, 1790 -- invalid
  Mustelus lenticulatus Phillipps, 1932 -- valid -- spotted estuary smooth-hound
  Mustelus lunulatus Jordan and Gilbert, 1882 -- valid -- cazón segador, sicklefin smoothhound
  Mustelus manazo Bleeker, 1854 -- valid -- starspotted smooth-hound
  Mustelus mediterraneus Quignard and Capape, 1972 -- invalid
  Mustelus mento Cope, 1877 -- valid -- speckled smooth-hound
  Mustelus mosis Klunzinger, 1871 -- valid -- Arabian smooth-hound
  Mustelus mustelus (Linnaeus, 1758) -- valid -- smooth-hound
  Mustelus norrisi Springer, 1939 -- valid -- cazón viuda, Florida smoothhound, narrowfin smooth-hound, boca dulce
  Mustelus osborni Fowler, 1923 -- invalid
  Mustelus palumbes Smith, 1957 -- valid -- whitespotted smooth-hound
  Mustelus punctulatus Risso, 1827 -- valid -- blackspotted smooth-hound
  Mustelus schmitti Springer, 1939 -- valid -- narrownose smooth-hound
  Mustelus striatus Devincenzi, 1920 -- invalid
  Mustelus vulgaris Cloquet, 1821 -- invalid
  Mustelus whitneyi Chirichigno F., 1973 -- valid -- humpback smooth-hound
  Mycteroperca Gill, 1862 -- valid
  Mycteroperca falcata (Poey, 1860) -- invalid
  Myctophum Rafinesque, 1810 -- valid
  Myctophum elucens Brauer, 1904 -- invalid
  Myctophum luetkeni Brauer, 1904 -- invalid
  Myctophum metopoclampum Cocco, 1829 -- invalid
  Myctophum vanhoeffeni Brauer, 1906 -- invalid
  Myletes Cuvier, 1814 -- invalid
  Myletes duriventris Cuvier, 1818 -- invalid
  Myletes hypsauchen Müller and Troschel, 1844 -- invalid
  Myletes lippincottianus Cope, 1870 -- invalid
  Myletes nigripinnis Cope, 1878 -- invalid
  Myletes oculus Cope, 1872 -- invalid
  Myleus Müller and Troschel, 1844 -- valid
  Myleus levis Eigenmann and McAtee in Eigenmann, McAtee and Ward, 1907 -- valid
  Myleus rubripinnis (Müller and Troschel, 1844) -- invalid
  Myleus rubripinnis rubripinnis (Müller and Troschel, 1844) -- invalid
  Myleus setiger Müller and Troschel, 1844 -- valid
  Myliobatis aquila (Linnaeus, 1758) -- valid -- spotted eagle ray
  Myliobatis australis Macleay, 1881 -- valid
  Myliobatis californica Gill, 1865 -- valid -- tecolote, bat ray
  Myliobatis californicus Gill, 1865 -- invalid
  Myliobatis chilensis Philippi, 1893 -- valid
  Myliobatis freminvillei Lesueur, 1824 -- invalid -- águila naríz de vaca, bullnose ray
  Myliobatis freminvillii Lesueur, 1824 -- valid -- bullnose ray
  Myliobatis goodei Garman, 1885 -- valid -- southern eagle ray
  Myliobatis hamlyni Ogilby, 1911 -- valid
  Myliobatis longirostris Applegate and Fitch, 1964 -- valid -- águila picuda, longnose eagle ray
  Myliobatis peruvianus Garman, 1913 -- valid
  Myliobatis tobijei Bleeker, 1854 -- valid
  Mylocheilus Agassiz, 1855 -- valid -- peamouths
  Mylocheilus caurinus (Richardson, 1836) -- valid -- méné deux-barres, Peamouth
  Mylopharodon Ayres, 1855 -- valid -- hardheads
  Mylopharodon robustus Ayres, 1855 -- invalid
  Mylopharyngodon Peters, 1881 -- valid
  Mylopharyngodon piceus (Richardson, 1846) -- valid
  Myloplus Gill, 1896 -- valid
  Myloplus rubripinnis (Müller and Troschel, 1844) -- valid
  Mylossoma Eigenmann and Kennedy, 1903 -- valid
  Mylossoma duriventre (Cuvier, 1818) -- invalid -- silver mylossoma, silver mylossoma
  Mylossoma duriventris (Cuvier, 1818) -- valid
  Myoxocephalus Tilesius, 1811 -- valid -- daddy sculpins, great sculpins, shorthorn sculpins, fourhorn sculpins
  Myrichthys Girard, 1859 -- valid
  Myrichthys acuminatus (Gronow in Gray, 1854) -- invalid -- sharptail eel
  Myrichthys bleekeri Gosline, 1951 -- invalid
  Myrichthys breviceps (Richardson, 1848) -- valid -- sharptail eel, safío de manchas blancas, tieso afilado
  Myrichthys colubrinus (Boddaert, 1781) -- valid -- broadnose worm eel
  Myrichthys maculosus (Cuvier, 1816) -- valid -- tiger snake eel
  Myrichthys ocellatus (Lesueur, 1825) -- valid -- goldspotted eel, palespotted eel, safío ocelado, tieso manchas doradas
  Myrichthys oculatus (Kaup, 1856) -- invalid -- goldspotted eel
  Myrichthys tigrinus Girard, 1859 -- valid -- tiger snake eel, tieso tigre
  Myroconger Günther, 1870 -- valid
  Myroconger compressus Günther, 1870 -- valid
  Myroconger gracilis Castle, 1991 -- valid
  Myrophis Lütken, 1852 -- valid -- worm eels
  Myrophis heterognathos Bleeker, 1858-59 -- invalid
  Myrophis heterognathus Bleeker, 1858-59 -- invalid
  Myrophis platyrhynchus Breder, 1927 -- valid -- broadnose worm eel, tieso chato
  Myrophis punctatus Lütken, 1852 -- valid -- speckled worm eel, safío pecoso, tieso gusano
  Myrophis vafer Jordan and Gilbert, 1883 -- valid -- Pacific worm eel, tieso lombriz
  Mystidens Whitley, 1944 -- invalid
  Mystidens innominatus Whitley, 1944 -- invalid
  Mystriophis Kaup, 1856 -- valid
  Mystus Scopoli, 1777 -- valid
  Mystus armatus (Day, 1865) -- valid
  Mystus cavasius (Hamilton, 1822) -- valid
  Mystus keletius (Valenciennes in Cuvier and Valenciennes, 1840) -- valid
  Mystus micracanthus (Bleeker, 1846) -- invalid
  Mystus vittatus (Bloch, 1794) -- valid -- striped catfish
  Myxocyprinus Gill, 1877 -- valid
  Myxocyprinus asiaticus (Bleeker, 1864) -- valid -- Chinese Sucker
  Nagaichthys Kottelat and Lim in Kottelat, 1991 -- valid
  Nangra Day, 1877 -- valid
  Nangra nangra (Hamilton, 1822) -- valid
  Nanichthys Hubbs and Wisner, 1980 -- invalid
  Nannaethiops Günther, 1872 -- valid
  Nannaethiops unitaeniatus Günther, 1872 -- valid -- onestriped african characin, onestriped african characin
  Nannatherina Regan, 1906 -- valid
  Nannobrycon Hoedeman, 1950 -- invalid
  Nannocampus Günther, 1870 -- valid
  Nannocharax Günther, 1867 -- valid
  Nannocharax altus Pellegrin, 1930 -- valid
  Nannocharax fasciatus Günther, 1867 -- valid
  Nannoperca Günther, 1861 -- valid
  Nannostomus Günther, 1872 -- valid -- pencilfish
  Nannostomus beckfordi Günther, 1872 -- valid -- golden pencilfish, golden pencilfish
  Nannostomus beckfordi anomalus Steindachner, 1876 -- invalid
  Nannostomus beckfordi aripirangensis Meinken, 1931 -- invalid
  Nannostomus beckfordi beckfordi Günther, 1872 -- invalid
  Nannostomus bifasciatus Hoedeman, 1954 -- valid -- two-lined pencilfish, two-lined pencilfish
  Nannostomus eques Steindachner, 1876 -- valid
  Nannostomus espei (Meinken, 1956) -- valid -- espei's pencilfish, espei's pencilfish
  Nannostomus harrisoni (Eigenmann, 1909) -- valid -- Harrison's pencilfish
  Nannostomus marginatus Eigenmann, 1909 -- valid -- dwarf pencilfish, dwarf pencilfish
  Nannostomus trifasciatus Steindachner, 1876 -- valid -- three-lined pencilfish, three-lined pencilfish
  Nannostomus unifasciatus Steindachner, 1876 -- valid
  Nannothrissa Poll, 1965 -- valid
  Nannothrissa parva (Regan, 1917) -- valid -- Lake Tumba dwarf sprat
  Nannothrissa stewarti Poll and Roberts, 1976 -- valid -- Mai-ndombe dwarf sprat
  Nansenia Jordan and Evermann, 1896 -- valid
  Narcetes Alcock, 1890 -- valid
  Narcine bentuviai Baranes and Randall, 1989 -- valid
  Narcine brasiliensis (Olfers, 1831) -- valid -- lesser electric ray
  Narcine brunnea Annandale, 1909 -- valid
  Narcine indica Henle, 1834 -- invalid
  Narcine maculata Duméril, 1852 -- valid
  Narcine prodorsalis Bessednov, 1966 -- valid
  Narcine rierai (Lloris and Rucabado, 1991) -- valid
  Narcine schmitti Hildebrand, 1948 -- valid
  Narcine timlei (Bloch and Schneider, 1801) -- valid
  Narcine vermiculatus Breder, 1928 -- valid -- raya eléctrica rayada, vermiculate electric ray
  Narcine westraliensis McKay, 1966 -- valid
  Narke Kaup, 1826 -- valid
  Narke capensis (Gmelin, 1789) -- valid
  Narke dipterygia (Bloch and Schneider, 1801) -- valid
  Narke japonica (Bloch and Schneider, 1801) -- valid
  Nasisqualus profundorum Smith and Radcliffe in Smith, 1912 -- invalid
  Naso hexacanthus (Bleeker, 1855) -- valid -- kala
  Naso lituratus (Forster in Bloch & Schneider, 1801) -- valid -- striped-face unicornfish
  Naso thynnoides (Cuvier, 1829) -- valid -- oneknife unicorn
  Nasolamia Compagno and Garrick, 1983 -- valid
  Nasolamia velox (Gilbert in Jordan and Evermann, 1898) -- valid -- tiburón coyotito, whitenose shark
  Natalichthys Winterbottom, 1980 -- valid
  Nautichthys Girard, 1858 -- valid
  Nautiscus Jordan and Evermann, 1898 -- invalid
  Nautopaedium Jordan, 1919 -- invalid
  Neanis Gistel, 1848 -- invalid
  Nebrius Rüppell, 1837 -- valid
  Nebrius concolor Rüppell, 1837 -- invalid
  Nebrius doldi Smith, 1953 -- invalid
  Nebrius ferrugineus (Lesson, 1831) -- valid -- gata nodriza atezada, requin nourrice fauve, tawny nurse shark
  Nebrodes Garman, 1913 -- invalid
  Nebrodes concolor ogilbyi Whitley, 1934 -- invalid
  Nectarges Myers and Wade, 1942 -- invalid
  Neenchelys Bamber, 1915 -- valid
  Neenchelys buitendijki Weber and de Beaufort, 1916 -- valid
  Neenchelys daedalus McCosker, 1982 -- valid
  Neenchelys microtretus Bamber, 1915 -- valid
  Neenchelys retropinna Smith and Böhlke, 1983 -- valid
  Negaprion acutidens (Rüppell, 1837) -- valid -- sicklefin lemon shark
  Negaprion brevirostris (Poey, 1868) -- valid -- tiburón limón, lemon shark, galano de ley
  Negaprion fronto (Jordan and Gilbert, 1882) -- invalid
  Negogaleus Whitley, 1931 -- invalid
  Negogaleus brachygnathus Chu, 1960 -- invalid
  Negogaleus longicaudatus Bessednov, 1966 -- invalid
  Negogaleus tengi Chen, 1963 -- invalid
  Nelabrichthys Russell, 1983 -- valid
  Nemacheilus Bleeker, 1863 -- valid
  Nemacheilus barbatulus (Linnaeus, 1758) -- invalid -- groundling, stone loach
  Nemacheilus binotatus Smith, 1933 -- valid
  Nemacheilus botia (Hamilton, 1822) -- invalid -- mottled loach, striped loach
  Nemacheilus carletoni Fowler, 1924 -- valid
  Nemacheilus kuschakewitschi Herzenstein, 1890 -- valid
  Nemacheilus lactogeneus Roberts, 1989 -- valid
  Nemacheilus longistriatus Kottelat, 1990 -- valid
  Nemacheilus masyai Smith, 1933 -- valid -- arrow loach
  Nemacheilus notostigma Bleeker, 1863 -- invalid -- spotback loach, spotted loach
  Nemacheilus oxianus Kessler, 1877 -- valid
  Nemacheilus sewerzowi Nikolskii, 1938 -- valid
  Nemacheilus strauchii (Kessler, 1874) -- invalid
  Nematalosa Regan, 1917 -- valid
  Nematalosa arabica Regan, 1917 -- valid -- Arabian gizzard shad
  Nematalosa come (Richardson, 1846) -- valid -- Perth herring, hairback herring, western Pacific gizzard shad
  Nematalosa erebi (Günther, 1868) -- valid -- Australian river gizzard shad, bony bream, pyberry, tukari
  Nematalosa flyensis Wongratana, 1983 -- valid -- Fly river gizzard shad
  Nematalosa galatheae Nelson and Rothman, 1973 -- valid -- Galathea gizzard shad
  Nematalosa japonica Regan, 1917 -- valid -- Japanese gizzard shad
  Nematalosa nasus (Bloch, 1795) -- valid -- gizzard shad, Bloch's gizzard shad, chardin gros nez, macuelo narigón
  Nematalosa papuensis (Munro, 1964) -- valid -- Strickland river gizzard shad
  Nematalosa persara Nelson and McCarthy, 1995 -- valid
  Nematalosa resticularia Nelson and McCarthy, 1995 -- valid
  Nematalosa vlaminghi (Munro, 1956) -- valid -- western Australia river gizzard shad, bony bream, Perth herring
  Nematobrycon Eigenmann, 1911 -- valid
  Nematobrycon lacortei Weitzman and Fink, 1971 -- valid
  Nematobrycon palmeri Eigenmann, 1911 -- valid -- emperor tetra, emperor tetra
  Nematochromis Weber, 1913 -- invalid
  Nematogenys Girard, 1855 -- valid
  Nematops chui Fowler, 1934 -- invalid
  Nematops grandisquama Weber & de Beaufort, 1929 -- invalid
  Nematops macrochirus Norman, 1931 -- valid
  Nematops microstoma Günther, 1880 -- valid
  Nemichthys Richardson, 1848 -- valid
  Nemichthys avocetta Jordan and Gilbert, 1881 -- invalid -- threadfish
  Nemichthys curvirostris (Strömman, 1896) -- valid
  Nemichthys infans Günther, 1878 -- invalid
  Nemichthys larseni Nielsen and Smith, 1978 -- valid
  Neobola Vinciguerra, 1895 -- valid
  Neobola bottegoi Vinciguerra, 1895 -- valid
  Neobythites Goode and Bean, 1885 -- valid
  Neocentropogon Matsubara, 1943 -- valid
  Neoceratias Pappenheim, 1914 -- valid
  Neochanna Günther, 1867 -- valid -- mudfish
  Neocirrhilabrus Cheng and Wang, 1979 -- invalid
  Neoconger Girard, 1858 -- valid
  Neoconger mucronatus Girard, 1858 -- valid -- ridged eel, morenita acanalada, anguila fideo aquillada
  Neoconger tuberculatus (Castle, 1965) -- valid
  Neoconger vermiformis Gilbert, 1890 -- valid
  Neocottus Sideleva, 1982 -- valid
  Neocyema Castle, 1978 -- valid
  Neocyttus Gilchrist, 1906 -- valid
  Neofundulus Myers, 1924 -- valid
  Neoglyphidodon Allen, 1991 -- valid
  Neoglyphidodon melas (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- black damselfish, bluefin damselfish, royal damsel, bowtie damselfish
  Neoglyphidodon nigroris (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- black-and-gold chromis
  Neoharriotta Bigelow and Schroeder, 1950 -- valid
  Neoharriotta carri Bullis and Carpenter, 1966 -- valid
  Neoharriotta pinnata (Schnakenbeck, 1931) -- valid
  Neohemilepidotus Sakamoto, 1932 -- invalid
  Neolaeops Amaoka, 1969 -- valid
  Neolaeops microphthalmus (von Bonde, 1922) -- valid -- crosseyed flounder
  Neolebias Steindachner, 1894 -- valid
  Neolebias ansorgii Boulenger, 1912 -- valid -- Ansorge's characin
  Neolebias landgrafi Ahl, 1928 -- invalid
  Neolebias trilineatus Boulenger, 1899 -- valid
  Neomerinthe Fowler, 1935 -- valid
  Neonesthes Regan and Trewavas, 1929 -- valid
  Neoophorus Hubbs and Turner, 1939 -- valid
  Neoopisthopterus Hildebrand, 1948 -- valid
  Neoopisthopterus cubanus Hildebrand, 1948 -- valid -- sardina cubana, Cuban longfin herring
  Neoopisthopterus tropicus (Hildebrand, 1946) -- valid -- sardinela pelada, tropical longfin herring
  Neopataecus Steindachner, 1884 -- valid
  Neophos Myers, 1932 -- invalid
  Neophrynichthys Günther, 1876 -- valid
  Neoplecostomus Eigenmann and Eigenmann, 1888 -- valid
  Neopomacentrus bankieri (Richardson, 1846) -- valid -- orangetailed damselfish
  Neopomacentrus fallax (Peters, 1855) -- valid -- violet damsel
  Neopomacentrus fuliginosus (Smith, 1960) -- valid -- sooty damsel
  Neoraja McEachran and Campagno, 1982 -- valid -- pygmy skates
  Neoraja africana (Stehmann and Seret, 1983) -- valid
  Neoraja caerulea (Stehmann, 1976) -- valid
  Neoraja carolinensis McEachran and Stehmann, 1984 -- valid -- Carolina pygmy skate
  Neoraja stehmanni (Hulley, 1972) -- valid
  Neosalanx Wakiya and Takahasi, 1937 -- valid
  Neoscombrops Gilchrist, 1922 -- valid
  Neoscopelus Johnson, 1863 -- valid
  Neosebastes Guichenot, 1867 -- valid
  Neosilurus Steindachner, 1867 -- valid
  Neosilurus hyrtlii Steindachner, 1867 -- valid
  Neostethus Regan, 1916 -- valid
  Neosynchiropus Nalbant, 1979 -- invalid
  Neosynchiropus rubrovinctus (Gilbert, 1905) -- invalid
  Neotoca Hubbs and Turner, 1939 -- invalid
  Neotriakis sinuans Smith, 1957 -- invalid
  Nerophis Rafinesque, 1810 -- valid
  Nesogalaxias Whitley, 1935 -- invalid
  Nessorhamphus Schmidt, 1931 -- valid
  Nessorhamphus danae Schmidt, 1931 -- valid
  Nessorhamphus ingolfianus (Schmidt, 1912) -- valid -- spoonbill eel
  Nettastoma Rafinesque, 1810 -- valid
  Nettastoma falcinaris Parin and Karmovskaya, 1985 -- valid
  Nettastoma melanurum Rafinesque, 1810 -- valid
  Nettastoma parviceps Günther, 1877 -- valid
  Nettastoma proboscideum Vaillant, 1888 -- invalid
  Nettastoma solitarium Castle and Smith in Smith, Böhlke and Castle, 1981 -- valid
  Nettastoma syntresis Smith and Böhlke in Smith, Böhlke and Castle, 1981 -- valid
  Nettastomella physonema Facciolà, 1914 -- invalid
  Nettenchelys Alcock, 1898 -- valid
  Nettenchelys dionisi Brito, 1989 -- valid
  Nettenchelys erroriensis Karmovskaya, 1994 -- valid
  Nettenchelys exoria Böhlke and Smith in Smith, Böhlke and Castle, 1981 -- valid
  Nettenchelys gephyra Castle and Smith in Smith, Böhlke and Castle, 1981 -- valid
  Nettenchelys inion Smith and Böhlke in Smith, Böhlke and Castle, 1981 -- valid
  Nettenchelys pygmaea Smith and Böhlke in Smith, Böhlke and Castle, 1981 -- valid -- pygmy pikeconger, serpentina enana
  Nettenchelys taylori Alcock, 1898 -- valid
  Nettodarus brevirostris (Facciolà, 1887) -- invalid
  Netuma Bleeker, 1858 -- valid
  Netuma barba (Lacepède, 1803) -- invalid
  Netuma thalassinus (Rüppell, 1837) -- valid -- giant sea catfish, mâchoiron titan, bagre titan
  Nezumia Jordan in Jordan and Starks, 1904 -- valid
  Niphon Cuvier in Cuvier and Valenciennes, 1828 -- valid
  Nocomis Girard, 1856 -- valid -- hornyhead chubs
  Nocomis asper Lachner and Jenkins, 1971 -- valid -- Redspot Chub
  Nocomis biguttatus (Kirtland, 1840) -- valid -- tête à taches rouges, Hornyhead Chub
  Nocomis effusus Lachner and Jenkins, 1967 -- valid -- Redtail Chub
  Nocomis leptocephalus (Girard, 1856) -- valid -- Bluehead Chub
  Nocomis micropogon (Cope, 1865) -- valid -- méné baton, River Chub
  Nocomis platyrhynchus Lachner and Jenkins, 1971 -- valid -- Bigmouth Chub
  Nocomis raneyi Lachner and Jenkins, 1971 -- valid -- Bull Chub
  Nocomis rubrifrons Jordan, 1877 -- invalid
  Noemacheilus Kuhl and van Hasselt in van Hasselt, 1823 -- invalid
  Nomorhamphus Weber and de Beaufort, 1922 -- valid
  Normanichthys Clark, 1937 -- valid
  Notacanthus Bloch, 1788 -- valid
  Notacanthus abbotti Fowler, 1934 -- valid
  Notacanthus bonapartei Risso, 1840 -- invalid
  Notacanthus chemnitzii Bloch, 1788 -- valid -- spiny eel, snubnosed spiny eel
  Notacanthus indicus Lloyd, 1909 -- valid
  Notacanthus rostratus Collett, 1889 -- invalid
  Notacanthus sexspinis Richardson, 1846 -- valid
  Notacanthus spinosus Garman, 1899 -- valid
  Notemigonus Rafinesque, 1819 -- valid -- golden shiners
  Notemigonus crysoleucas (Mitchill, 1814) -- valid -- Golden Shiner, méné jaune
  Notemigonus crysoleucas crysoleucas (Mitchill, 1814) -- invalid
  Notemigonus crysoleucas roseus (Bean, 1903) -- invalid
  Notesthes Ogilby, 1903 -- valid
  Nothobranchius Peters, 1868 -- valid
  Notidanus cinereus pristiurus Bellotti, 1878 -- invalid
  Notidanus ferox Perez Canto, 1886 -- invalid
  Notidanus medinae Philippi, 1902 -- invalid
  Notidanus monge Risso, 1827 -- invalid
  Notidanus vulgaris Perez Canto, 1886 -- invalid
  Notidanus wolniczkyi Philippi, 1902 -- invalid
  Notocetichthys Balushkin, Fedorov and Paxton, 1989 -- valid
  Notocheirus Clark, 1937 -- valid
  Notograptus Günther, 1867 -- valid
  Notolabrus Russell, 1988 -- valid
  Notoliparis Andriashev, 1975 -- valid
  Notolychnus Fraser-Brunner, 1949 -- valid
  Notopogon Regan, 1914 -- valid
  Notopterus Lacepède, 1800 -- valid
  Notopterus chitala (Hamilton, 1822) -- invalid -- featherback, clown knifefish, featherback
  Notopterus nigri Günther, 1868 -- invalid
  Notopterus notopterus (Pallas, 1769) -- valid -- Asiatic knifefish, bronze featherback
  Notoraja Ishiyama, 1958 -- valid -- velvet skates
  Notorhynchus Ayers, 1855 -- invalid
  Notorhynchus indicus Agassiz, 1835 -- invalid
  Notorynchus cepedianus (Péron, 1807) -- valid -- bluntnose sevengill shark, sevengill shark, tiburón pinto, broadnose sevengill shark
  Notorynchus macdonaldi Whitley, 1931 -- invalid
  Notorynchus maculatus Ayres, 1855 -- invalid
  Notorynchus ocellatus Devincenzi, 1920 -- invalid
  Notoscopelus Günther, 1864 -- valid
  Notoscopelus kroeyeri (Malm, 1861) -- invalid -- Krĝyer's lanternfish, kroyers lanternfish, lampe-voilière du nord
  Notropis Rafinesque, 1818 -- valid -- eastern shiners
  Notropis albeolus Eigenmann and Eigenmann, 1893 -- invalid -- white shiner
  Notropis amblops (Rafinesque, 1820) -- invalid -- bigeye chub
  Notropis amblops winchelli (Girard, 1856) -- invalid
  Notropis analostanus (Girard, 1859) -- invalid -- satinfin shiner
  Notropis ardens (Cope, 1868) -- invalid -- rosefin shiner
  Notropis atrapiculus Snelson, 1972 -- invalid -- blacktip shiner
  Notropis bellus (Hay, 1881) -- invalid
  Notropis buccatus (Cope, 1865) -- invalid -- silverjaw minnow
  Notropis caeruleus (Jordan, 1877) -- invalid -- blue shiner
  Notropis callisema (Jordan, 1877) -- invalid -- Ocmulgee shiner
  Notropis callistius (Jordan, 1877) -- invalid -- Alabama shiner
  Notropis callitaenia Bailey and Gibbs, 1956 -- invalid -- bluestripe shiner
  Notropis camurus (Jordan and Meek, 1884) -- invalid -- bluntface shiner
  Notropis cardinalis Mayden, 1988 -- invalid
  Notropis cerasinus (Cope, 1868) -- invalid -- crescent shiner
  Notropis chloristius (Jordan and Brayton, 1878) -- invalid -- greenfin shiner
  Notropis chrysocephalus (Rafinesque, 1820) -- invalid -- striped shiner
  Notropis coccogenis (Cope, 1868) -- invalid -- warpaint shiner
  Notropis cornutus (Mitchill, 1817) -- invalid -- common shiner
  Notropis emiliae (Hay, 1881) -- invalid -- pugnose minnow
  Notropis euryzonus Suttkus, 1955 -- invalid -- broadstripe shiner
  Notropis formosus (Girard, 1856) -- invalid -- beautiful shiner
  Notropis fumeus Evermann, 1892 -- invalid -- ribbon shiner
  Notropis galacturus (Cope, 1868) -- invalid -- whitetail shiner
  Notropis gibbsi Howell and Williams, 1971 -- invalid -- Tallapoosa shiner
  Notropis hubbsi Bailey and Robison, 1978 -- invalid -- bluehead shiner
  Notropis hudsonius (Clinton, 1824) -- valid -- Spottail Shiner, queue à tache noire, queue à tâche noire
  Notropis hudsonius amarus (Girard, 1856) -- invalid
  Notropis hypselopterus (Günther, 1868) -- invalid -- sailfin shiner
  Notropis hypsinotus (Cope, 1870) -- invalid -- highback chub
  Notropis leedsi Fowler, 1942 -- invalid -- bannerfin shiner
  Notropis lepidus (Girard, 1856) -- invalid
  Notropis lirus Jordan, 1877 -- invalid -- mountain shiner
  Notropis lutrensis (Baird and Girard, 1853) -- invalid -- red shiner
  Notropis niveus (Cope, 1870) -- invalid -- whitefin shiner
  Notropis nubilus (Forbes in Jordan, 1878) -- valid -- Ozark Minnow, roseate shiner
  Notropis pilsbryi Fowler, 1904 -- invalid -- duskystripe shiner
  Notropis proserpinus (Girard, 1856) -- invalid -- proserpine shiner
  Notropis pyrrhomelas (Cope, 1870) -- invalid -- fieryblack shiner
  Notropis roseipinnis Hay in Jordan, 1885 -- invalid -- cherryfin shiner
  Notropis rubescens Bailey in Robins, Bailey, Bond, Brooker, Lachner, Lea and Scott, 1991 -- invalid -- rosyface chub
  Notropis signipinnis Bailey and Suttkus, 1952 -- invalid -- flagfin shiner
  Notropis simus pecosensis Gilbert and Chernoff in Chernoff, Miller and Gilbert, 1982 -- valid -- Pecos bluntnose shiner
  Notropis simus simus (Cope in Cope and Yarrow, 1876) -- valid -- Rio Grande bluntnose shiner
  Notropis snelsoni Robison, 1985 -- invalid
  Notropis spilopterus (Cope, 1867) -- invalid -- spotfin shiner
  Notropis spilopterus spilopterus (Cope, 1867) -- invalid
  Notropis suttkusi Humphries and Cashner, 1994 -- valid -- Rocky Shiner
  Notropis trichroistia (Jordan and Gilbert in Jordan and Brayton, 1878) -- invalid -- tricolor shiner
  Notropis umbratilis (Girard, 1856) -- invalid -- redfin shiner
  Notropis venustus (Girard, 1856) -- invalid -- blacktail shiner
  Notropis volucellus wickliffi Trautman, 1931 -- invalid
  Notropis welaka Evermann and Kendall, 1898 -- invalid -- bluenose shiner
  Notropis whipplii (Girard, 1856) -- invalid
  Notropis winchelli (Girard, 1856) -- invalid -- clear chub
  Notropis xaenurus (Jordan, 1877) -- invalid -- Altamaha shiner
  Notropis zonatus (Putnam, 1863) -- invalid -- bleeding shiner
  Notropis zonistius (Jordan, 1880) -- invalid -- bandfin shiner
  Noturus Rafinesque, 1818 -- valid -- madtoms
  Noturus albater Taylor, 1969 -- valid -- Ozark Madtom
  Noturus baileyi Taylor, 1969 -- valid -- Smoky Madtom
  Noturus elegans Taylor, 1969 -- valid -- Elegant Madtom
  Noturus eleutherus Jordan, 1877 -- valid -- Mountain Madtom
  Noturus exilis Nelson, 1876 -- valid -- Slender Madtom
  Noturus flavater Taylor, 1969 -- valid -- Checkered Madtom
  Noturus flavipinnis Taylor, 1969 -- valid -- Yellowfin Madtom
  Noturus flavus Rafinesque, 1818 -- valid -- Stonecat, barbotte des rapides
  Noturus funebris Gilbert and Swain in Gilbert, 1891 -- valid -- Black Madtom
  Noturus furiosus Jordan and Meek in Jordan, 1889 -- valid -- Carolina Madtom
  Noturus gilberti Jordan and Evermann in Jordan, 1889 -- valid -- Orangefin Madtom
  Noturus gyrinus (Mitchill, 1817) -- valid -- Tadpole Madtom, chat-fou brun
  Noturus hildebrandi (Bailey and Taylor, 1950) -- valid -- Least Madtom
  Noturus insignis (Richardson, 1836) -- valid -- Margined Madtom, chat-fou liséré
  Noturus lachneri Taylor, 1969 -- valid -- Ouachita Madtom
  Noturus leptacanthus Jordan, 1877 -- valid -- Speckled Madtom
  Noturus miurus Jordan, 1877 -- valid -- Brindled Madtom, chat-fou tâcheté
  Noturus munitus Suttkus and Taylor, 1965 -- valid -- Frecklebelly Madtom
  Noturus nocturnus Jordan and Gilbert, 1886 -- valid -- Freckled Madtom
  Noturus phaeus Taylor, 1969 -- valid -- Brown Madtom
  Noturus placidus Taylor, 1969 -- valid -- Neosho Madtom
  Noturus stanauli Etnier and Jenkins, 1980 -- valid -- Pygmy Madtom
  Noturus stigmosus Taylor, 1969 -- valid -- chat-fou du nord, Northern Madtom
  Noturus taylori Douglas, 1972 -- valid -- Caddo Madtom
  Noturus trautmani Taylor, 1969 -- valid -- Scioto Madtom
  Novacula Cuvier, 1815 -- invalid
  Novacula jacksonensis Ramsay, 1881 -- invalid
  Novaculichthys Bleeker, 1862 -- valid
  Novaculichthys taeniourus (Lacépède, 1801) -- valid -- clown wrasse, rockmover, cuchillo dragón, rockmover wrasse
  Noviricuzenius Bolin, 1936 -- invalid
  Novumbra Schultz, 1929 -- valid -- Olympic mudminnows
  Nudiantennarius Schultz, 1957 -- valid
  Nudiantennarius subteres (Smith and Radcliffe in Radcliffe, 1912) -- valid -- deepwater frogfish
  Nybelinella Nielsen, 1972 -- valid
  Nystactes Böhlke, 1957 -- invalid
  Nystactichthys Böhlke, 1958 -- invalid
  Nystactichthys halis Böhlke, 1957 -- invalid -- garden eel
  Occella Jordan and Hubbs, 1925 -- valid
  Ochetobius Günther, 1868 -- valid
  Ochetobius elongatus (Kner, 1867) -- valid
  Ochmacanthus Eigenmann, 1912 -- valid
  Ochotskia Schmidt, 1916 -- invalid
  Ocosia Jordan and Starks, 1904 -- valid
  Octocynodon Fowler, 1904 -- invalid
  Ocynectes Jordan and Starks, 1904 -- valid
  Ocyurus Gill, 1862 -- valid
  Odax varius Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Odaxothrissa Boulenger, 1899 -- valid
  Odaxothrissa losera Boulenger, 1899 -- valid -- Losera fangtooth pellonuline
  Odaxothrissa vittata Regan, 1917 -- valid -- Regan's fangtooth pellonuline
  Odontanthias fuscipinnis (Jenkins, 1901) -- valid
  Odontaspis ferox (Risso, 1810) -- valid -- tiburón dientes de perro, ragged-tooth shark, smalltooth sand tiger, bumpytail raggedtooth
  Odontaspis herbsti Whitley, 1950 -- invalid
  Odontaspis madagascariensis Fourmanoir, 1961 -- invalid
  Odontaspis noronhai (Maul, 1955) -- valid -- bigeye sand tiger, bigeye sand shark
  Odontaspis platensis Lahille, 1928 -- invalid
  Odontaspis taurus (Rafinesque, 1810) -- invalid -- sand tiger
  Odontesthes Evermann and Kendall, 1906 -- valid
  Odontognathus Lacepède, 1800 -- valid
  Odontognathus compressus Meek and Hildebrand, 1923 -- valid -- Caribbean longfin herring
  Odontognathus mucronatus Lacepède, 1800 -- valid -- Guiana longfin herring
  Odontognathus panamensis (Steindachner, 1876) -- valid -- sardina machete panameña, Panama longfin herring
  Odontopyxis Lockington, 1880 -- valid
  Odontostomias Norman, 1930 -- valid
  Ogcocephalus Fischer, 1813 -- valid
  Ogilbia Jordan and Evermann in Evermann and Kendell, 1898 -- valid
  Ogilbyina Fowler, 1931 -- valid
  Okamejei boesemani (Ishihara, 1987) -- valid
  Okamejei cerva (Whitley, 1939) -- valid
  Oligocottus Girard, 1856 -- valid -- tidepool johnnies
  Oligosarcus Günther, 1864 -- valid
  Oligosarcus argenteus Günther, 1864 -- valid
  Olivaichthys Arratia, 1987 -- invalid
  Ollentodon Hubbs and Turner, 1939 -- invalid
  Oloplotosus Weber, 1913 -- valid
  Oloplotosus mariae Weber, 1913 -- valid
  Olyra McClelland, 1842 -- valid
  Olyra burmanica Day, 1872 -- valid
  Ompok Lacepède, 1803 -- valid
  Ompok bimaculatus (Bloch, 1794) -- valid -- butter catfish, glass catfish
  Oncopterus Steindachner, 1874 -- valid
  Oncopterus darwinii Steindachner, 1874 -- valid
  Oncorhynchus Suckley, 1861 -- valid -- Pacific salmon
  Oneirodes Lütken, 1871 -- valid
  Onigocia Jordan and Thompson, 1913 -- valid
  Onuxodon Smith, 1955 -- valid
  Onuxodon margaritiferae (Rendahl, 1921) -- valid -- clam pearlfish
  Oostethus Hubbs, 1929 -- invalid
  Ophichthus Ahl, 1789 -- valid -- snake eels
  Ophichthus cephalozona Bleeker, 1864 -- valid
  Ophichthus cruentifer (Goode and Bean, 1896) -- valid -- margined snake eel
  Ophichthus gomesii (Castelnau, 1855) -- valid -- safío prieto, shrimp eel, tieso camaronero
  Ophichthus guineensis Osório, 1893 -- invalid
  Ophichthus hyposagmatus McCosker and Böhlke, 1984 -- valid -- faintsaddled snake eel
  Ophichthus melanoporus Kanazawa, 1963 -- valid -- blackpored eel
  Ophichthus ocellatus (Lesueur, 1825) -- invalid -- palespotted eel
  Ophichthus omorgmus McCosker and Böhlke, 1984 -- valid -- dottedline snake eel
  Ophichthus polyophthalmus Bleeker, 1865 -- valid -- manyeyed worm eel, ocellated worm eel
  Ophichthus puncticeps (Kaup, 1860) -- valid -- palespotted eel
  Ophichthus retropinnis Eigenmann, 1887 -- invalid
  Ophichthus rex Böhlke and Caruso, 1980 -- valid -- king snake eel, lairón
  Ophichthus rufus (Rafinesque, 1810) -- valid
  Ophichthus triserialis (Kaup, 1856) -- valid -- Pacific snake eel, tieso del Pacífico
  Ophichthus zophochir Jordan and Gilbert, 1882 -- valid -- yellow snake eel, tieso amarillo
  Ophichthys anguiformis Peters, 1877 -- invalid
  Ophichthys bitaeniatus Peters, 1877 -- invalid
  Ophidion Linnaeus, 1758 -- valid -- cusk-eels
  Ophiodon Girard, 1854 -- valid
  Ophioscion Gill, 1863 -- valid
  Ophisoma acuta Swainson, 1839 -- invalid
  Ophisternon McClelland, 1844 -- valid -- snake swamp eels
  Ophthalmolepis Bleeker, 1862 -- valid
  Opisthonema Gill, 1861 -- valid -- thread herrings
  Opisthonema berlangai Berry and Barrett, 1963 -- valid -- Galapagos thread herring
  Opisthonema bulleri (Regan, 1904) -- valid -- sardina crinuda azul, slender thread herring
  Opisthonema captivai Rivas, 1972 -- invalid
  Opisthonema libertate (Günther, 1867) -- valid -- deepbody thread herring, sardina crinuda, Pacific thread herring
  Opisthonema medirastre Berry and Barrett, 1963 -- valid -- middling thread herring, sardina crinuda machete
  Opisthonema oglinum (Lesueur, 1818) -- valid -- machuelo, sardina vivita de hebra, Atlantic thread herring
  Opisthonema oglinum captivai Rivas, 1972 -- invalid
  Opisthoproctus Vaillant, 1888 -- valid
  Opisthopterus Gill, 1861 -- valid
  Opisthopterus dovii (Günther, 1868) -- valid -- sardina machete chata, Pacific longfin herring, Dove's longfin herring
  Opisthopterus effulgens (Regan, 1903) -- valid -- Vaqueira longfin herring
  Opisthopterus equatorialis Hildebrand, 1946 -- valid -- equitorial longfin herring
  Opisthopterus equitorialis Hildebrand, 1946 -- invalid -- equitorial longfin herring
  Opisthopterus macrops (Günther, 1867) -- valid -- bigeyed longfin herring
  Opisthopterus tardoore (Cuvier, 1829) -- valid -- tardoore, poisson-papiér tarture, arenquillo tardore
  Opisthopterus valenciennesi Bleeker, 1872 -- valid -- slender tardoor
  Opistognathus Cuvier, 1816 -- valid -- spotfin jawfishes
  Opostomias Günther, 1887 -- valid
  Opsanus Rafinesque, 1818 -- valid
  Opsaridium Peters, 1854 -- valid
  Opsaridium christyi (Boulenger, 1920) -- valid
  Opsariichthys Bleeker, 1863 -- valid
  Opsariichthys bidens Günther, 1873 -- valid
  Opsariichthys uncirostris (Temminck and Schlegel, 1846) -- valid
  Opsodoras Eigenmann, 1925 -- valid
  Opsodoras orthacanthus Eigenmann, 1925 -- invalid
  Opsopoeodus Hay, 1881 -- valid -- pugnose minnows
  Opsopoeodus emiliae Hay, 1881 -- valid -- petit-bec, Pugnose Minnow
  Orectolobus Bonaparte, 1834 -- valid
  Orectolobus japonicus Regan, 1906 -- valid -- Japanese wobbegong
  Orectolobus maculatus (Bonnaterre, 1788) -- valid -- spotted wobbegong
  Orectolobus ogilbyi Regan, 1909 -- invalid
  Orectolobus ornatus (De Vis, 1883) -- valid -- ornate wobbegong
  Orectolobus tentaculatus (Peters, 1864) -- invalid
  Orectolobus wardi Whitley, 1939 -- valid -- northern wobbegong, requin-tapis savetier, tapicero zapatilla
  Oregonichthys Hubbs in Schultz, 1929 -- valid -- Oregon chubs
  Oregonichthys crameri (Snyder, 1908) -- valid -- Oregon Chub
  Oregonichthys kalawatseti Markle, Pearsons and Bills, 1991 -- valid -- Umpqua Chub, Umpqua Oregon chub
  Oreochromis urolepis hornorum (Trewavas, 1966) -- valid
  Oreoleuciscus Warpachowski, 1889 -- valid
  Oreoleuciscus humilis Warpachowski, 1889 -- valid -- small osman
  Oreonectes Günther, 1868 -- valid
  Oreonectes anophthalmus Zheng in Zheng, 1981 -- valid
  Oreonectes furcocaudalis Zhu and Cao, 1987 -- valid
  Oreonectes platycephalus Günther, 1868 -- valid
  Oreosoma Cuvier, 1829 -- valid
  Oreosoma atlanticum Cuvier in Cuvier and Valenciennes, 1829 -- valid -- oreo
  Orestias Valenciennes, 1839 -- valid
  Orthodon Girard, 1856 -- valid -- Sacramento blackfishes
  Orthodon microlepidotus (Ayres, 1854) -- valid -- Sacramento Blackfish
  Orthonopias Starks and Mann, 1911 -- valid
  Orthopristis Girard, 1858 -- valid -- pigfishes
  Orthrias Jordan and Fowler, 1903 -- valid
  Orthrias angorae (Steindachner, 1897) -- invalid
  Orthrias brandtii (Kessler, 1877) -- valid
  Orthrias insignis (Heckel, 1843) -- invalid
  Orthrias merga (Krynicki in Nordmann, 1840) -- invalid
  Orthrias panthera (Heckel, 1843) -- valid
  Orthrias tigris (Heckel, 1843) -- valid
  Orthrias tschaiyssuensis (Banarescu and Nalbant, 1964) -- valid
  Oryzias Jordan and Snyder, 1906 -- valid
  Osmerus Linnaeus, 1758 -- valid -- rainbow smelts
  Osteochilus Günther, 1868 -- valid
  Osteochilus bellus Popta, 1904 -- valid
  Osteochilus hasseltii (Valenciennes in Cuvier and Valenciennes, 1842) -- valid
  Osteoglossum bicirrhosum (Cuvier, 1829) -- valid -- arowana, arawana, aruana, bandfish, silver aruana
  Osteoglossum ferreirai Kanazawa, 1966 -- valid -- black arowana, black arawana, black arowana, black aruana
  Ostracoberyx Fowler, 1934 -- valid
  Otocinclus Cope, 1871 -- valid
  Otocinclus affinis Steindachner, 1877 -- valid -- dwarf sucking catfish
  Otocinclus arnoldi Regan, 1909 -- invalid -- Arnold's sucker catfish
  Otocinclus flexilis Cope, 1894 -- valid
  Otolithes Oken, 1817 -- valid
  Otolithoides Fowler, 1933 -- valid
  Otophidium Gill in Jordan, 1885 -- valid
  Oxycottus Jordan and Evermann, 1898 -- invalid
  Oxygaster van Hasselt, 1823 -- valid
  Oxygaster anomalura van Hasselt, 1823 -- valid
  Oxyjulis Gill, 1863 -- valid
  Oxylebius Gill, 1862 -- valid
  Oxynotus bruniensis (Ogilby, 1893) -- valid -- prickley dogfish
  Oxynotus caribbaeus Cervigón, 1961 -- valid -- Caribbean roughshark
  Oxynotus centrina (Linnaeus, 1758) -- valid -- angular roughshark
  Oxynotus paradoxus Frade, 1929 -- valid -- sailfin roughshark
  Oxyporhamphus Gill, 1864 -- valid -- flying halfbeaks
  Oxyzygonectinae Parenti, 1981 -- valid
  Pachypanchax Myers, 1933 -- valid
  Pachystomias Günther, 1887 -- valid
  Pagellus Valenciennes in Cuvier and Valenciennes, 1830 -- valid
  Pagrus Cuvier, 1816 -- valid
  Pagrus auratus (Forster in Bloch and Schneider, 1801) -- invalid
  Pallasina Cramer in Jordan and Starks, 1895 -- valid
  Panaque Eigenmann and Eigenmann, 1889 -- valid
  Panaque nigrolineatus (Peters, 1877) -- valid -- royal panaque
  Pangasianodon Chevey, 1931 -- valid
  Pangasianodon gigas Chevey, 1931 -- valid -- giant catfish, Mekong giant catfish, trey reach
  Pangasius Valenciennes in Cuvier and Valenciennes, 1840 -- valid
  Pangasius hypophthalmus (Sauvage, 1878) -- invalid
  Pangasius sanitwongsei Smith, 1931 -- valid -- Giant pangasius, trey po pruy
  Pangasius sutchi Fowler, 1937 -- invalid -- Swai
  Pangio Blyth, 1860 -- valid
  Pangio alcoides Kottelat and Lim, 1993 -- valid
  Pangio alternans Kottelat and Lim, 1993 -- valid
  Pangio filinaris Kottelat and Lim, 1993 -- valid
  Pangio incognito Kottelat and Lim, 1993 -- valid
  Pangio piperata Kottelat and Lim, 1993 -- valid
  Pangio pulla Kottelat and Lim, 1993 -- valid
  Pantanodon Myers, 1955 -- valid
  Pantodon Peters, 1877 -- valid
  Pantodon buchholzi Peters, 1877 -- valid -- butterflyfish, freshwater butterfly fish, African butterflyfish, butterfly fish, butterflyfish, freshwater butterfly fish
  Panturichthys Pellegrin, 1913 -- valid
  Panturichthys fowleri (Ben-tuvia, 1953) -- valid
  Panturichthys isognathus Poll, 1953 -- valid
  Panturichthys longus (Ehrenbaum, 1915) -- valid
  Panturichthys mauritanicus Pellegrin, 1913 -- valid
  Papilloculiceps Fowler and Steinitz, 1956 -- valid
  Papillogobius Gill and Miller, 1990 -- valid
  Papillogobius reichei (Bleeker, 1853) -- invalid
  Papuengraulis Munro, 1964 -- valid
  Papuengraulis micropinna Munro, 1964 -- valid -- littlefin anchovy
  Papyrocranus Greenwood, 1963 -- valid
  Papyrocranus afer (Günther, 1868) -- valid -- African featherfin, reticulate knifefish
  Papyrocranus congoensis (Nichols and La Monte, 1932) -- valid
  Parabathophilus Matallanas, 1984 -- valid
  Parabathymyrus Kamohara, 1938 -- valid
  Parabathymyrus brachyrhynchus (Fowler, 1934) -- valid
  Parabathymyrus karrerae Karmovskaya, 1991 -- valid
  Parabathymyrus macrophthalmus Kamohara, 1938 -- valid
  Parabathymyrus oregoni Smith and Kanazawa, 1977 -- valid -- flapnose conger, congrio nariz colgada
  Parabembras Bleeker, 1874 -- valid
  Parabothus Norman, 1931 -- valid
  Parabothus amaokai Parin, 1983 -- valid
  Parabothus chlorospilus (Gilbert, 1905) -- valid
  Parabothus coarctatus (Gilbert, 1905) -- valid
  Parabothus polylepis (Alcock, 1889) -- valid
  Parabothus thackwrayi Smith, 1967 -- invalid -- fan flounder
  Parabotia Dabry de Thiersant, 1872 -- valid
  Parabotia bimaculata Chen, 1980 -- valid
  Parabotia fasciata Dabry de Thiersant, 1872 -- valid
  Parabramis Bleeker, 1865 -- valid
  Parabramis pekinensis (Basilewsky, 1855) -- valid
  Parabrotula Zugmayer, 1911 -- valid
  Paracaesio Bleeker, 1874 -- valid
  Paracanthopoma Giltay, 1935 -- valid
  Paracanthurus hepatus (Linnaeus, 1766) -- valid -- common surgeon, doctorfish
  Paracentropogon Bleeker, 1876 -- valid
  Paracentroscyllium ornatum Alcock, 1889 -- invalid
  Paracetonurus Marshall, 1973 -- invalid
  Paracheilinus Fourmanoir in Roux-Estéve and Fourmanoir, 1955 -- valid
  Paracheirodon Géry, 1960 -- valid -- neon tetras, green tetras, cardinal tetras
  Paracheirodon axelrodi (Schultz, 1956) -- valid -- cardinal tetra, red neon, cardinal tetra, red neon
  Paracheirodon innesi (Myers, 1936) -- valid -- neon tetra, neon tetra
  Paraconger Kanazawa, 1961 -- valid
  Paraconger californiensis Kanazawa, 1961 -- valid -- ringeye conger, congrio anteojos
  Paraconger caudilimbatus (Poey, 1867) -- valid -- margintail conger, congrio, congrio cola de bordes
  Paraconger dentatus (Garman, 1899) -- invalid
  Paraconger guianensis Kanazawa, 1961 -- valid
  Paraconger macrops (Günther, 1870) -- valid
  Paraconger notialis Kanazawa, 1961 -- valid
  Paraconger ophichthys (Garman, 1899) -- valid
  Paraconger similis (Wade, 1946) -- valid -- shorttail conger, congrio colicorta
  Paradistichodus Pellegrin, 1922 -- valid
  Paradistichodus dimidiatus (Pellegrin, 1904) -- valid
  Paradoxodacna Roberts, 1989 -- valid
  Paragalaxias Scott, 1935 -- valid
  Paragaleus acutiventris Chu, 1960 -- invalid
  Paragaleus gruveli Budker, 1935 -- invalid
  Paragaleus pectoralis (Garman, 1906) -- valid -- Atlantic weasel shark
  Paragaleus tengi (Chen, 1963) -- valid -- straight-tooth weasel shark
  Paragoniates Steindachner, 1876 -- valid
  Paragoniates alburnus Steindachner, 1876 -- valid
  Paraholtbyrnia Krefft, 1967 -- invalid
  Parailia Boulenger, 1899 -- valid
  Parailia congica Boulenger, 1899 -- valid
  Parailia pellucida (Boulenger, 1901) -- valid -- African glass catfish
  Parajulis Bleeker, 1865 -- valid
  Parakneria Poll, 1965 -- valid
  Parakneria abbreviata (Pellegrin, 1931) -- valid
  Parakneria cameronensis (Boulenger, 1909) -- valid
  Parakneria damasi Poll, 1965 -- valid
  Parakneria fortuita Penrith, 1973 -- valid
  Parakneria kissi Poll, 1969 -- valid
  Parakneria ladigesi Poll, 1967 -- valid
  Parakneria lufirae Poll, 1965 -- valid
  Parakneria malaissei Poll, 1969 -- valid
  Parakneria marmorata (Norman, 1923) -- valid
  Parakneria mossambica Jubb and Bell-Cross, 1974 -- valid
  Parakneria spekii (Günther, 1868) -- valid
  Parakneria tanzaniae Poll, 1984 -- valid
  Parakneria thysi Poll, 1965 -- valid
  Parakneria vilhenae Poll, 1965 -- valid
  Parakysis Herre, 1940 -- valid
  Parakysis verrucosa Herre, 1940 -- invalid
  Paralabrax Girard, 1856 -- valid
  Paralaemonema Trunov, 1990 -- invalid
  Paralichthodes algoensis Gilchrist, 1902 -- valid -- measles flounder
  Paralichthys Girard, 1858 -- valid -- Summer flounders, southern flounders
  Paralichthys albigutta Jordan & Gilbert, 1882 -- valid -- Gulf flounder, lenguado panzablanca, Gulf Flounder
  Paralichthys brasiliensis (Ranzani, 1842) -- valid
  Paralichthys californicus (Ayres, 1859) -- valid -- California halibut, lenguado californiano, California Halibut
  Paralichthys dentatus (Linnaeus, 1766) -- valid -- summer flounder, fluke, cardeau d'été, Summer Flounder
  Paralichthys lethostigma Jordan & Gilbert in Jordan & Meek, 1884 -- valid -- southern flounder, lenguado limpio, Southern Flounder
  Paralichthys oblongus (Mitchill, 1815) -- valid -- fourspot flounder, cardeau à quatre ocelles, Fourspot Flounder
  Paralichthys olivaceus (Temminck & Schlegel, 1846) -- valid -- bastard halibut, false halibut, hirame, olive flounder
  Paralichthys ommatus Jordan & Gilbert, 1883 -- invalid
  Paralichthys squamilentus Jordan & Gilbert, 1882 -- valid -- broad flounder, lenguado huarachón, Broad Flounder
  Paralichthys tropicus Ginsburg, 1933 -- valid
  Paralimanda Breder, 1927 -- invalid
  Paralimanda inermis Breder, 1927 -- invalid
  Paraliparis Collett, 1879 -- valid
  Paraliparis nanus (Gilbert, 1915) -- invalid
  Paralonchurus Bocourt, 1869 -- valid
  Parambassis Bleeker, 1874 -- valid
  Parambassis dayi (Bleeker, 1874) -- valid
  Parambassis lala (Hamilton, 1822) -- valid -- glassfish
  Paramphilius Pellegrin, 1907 -- valid
  Paramphilius goodi Harry, 1953 -- valid
  Paranothobranchius Seegers, 1985 -- invalid
  Paranthias Guichenot, 1868 -- valid
  Paraphago Boulenger, 1899 -- valid
  Paraphago rostratus Boulenger, 1899 -- valid
  Paraplagusia Bleeker, 1865 -- valid -- fringelip tonguesoles
  Paraplesiops Bleeker, 1875 -- valid
  Paraploactis Bleeker, 1864 -- valid
  Paraploactis taprobanensis (Whitley, 1933) -- valid
  Paraplotosus Bleeker, 1862 -- valid
  Paraplotosus albilabris (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- whitelipped eel catfish
  Parapolynemus Feltes, 1993 -- valid
  Parapristipoma Bleeker, 1873 -- valid
  Parapristipomoides Kami, 1973 -- valid
  Parapristurus Fowler, 1934 -- invalid
  Parapristurus spongiceps (Gilbert, 1905) -- invalid
  Parapterois Bleeker, 1876 -- valid
  Parapterygotrigla Matsubara, 1937 -- valid
  Pararhinichthys Stauffer, Hocutt and Mayden, 1997 -- invalid -- mongrel daces
  Pararhinichthys bowersi (Goldsborough and Clark, 1908) -- invalid -- cheat dace, mongrel dace
  Parartedius Hubbs, 1926 -- invalid
  Parasciadonus Nielsen, 1984 -- valid
  Parascolopsis Boulenger, 1901 -- valid
  Parascorpaena Bleeker, 1876 -- valid
  Parascyllium Gill, 1862 -- valid
  Parascyllium collare Ramsay and Ogilby, 1888 -- valid -- collared carpetshark
  Parascyllium ferrugineum McCulloch, 1911 -- valid -- rusty carpetshark
  Parascyllium multimaculatum Scott, 1935 -- invalid -- Tasmanian carpetshark
  Parascyllium nuchalis McCoy, 1874 -- invalid
  Parascyllium variolatum (Duméril, 1853) -- valid -- necklace carpet shark, necklace carpetshark
  Parasilurus Bleeker, 1862 -- valid
  Parasilurus asotus (Linnaeus, 1758) -- valid -- Japanese catfish
  Parasilurus lithophilus Tomoda, 1961 -- invalid
  Parasphyraenops Bean, 1912 -- valid
  Parastremma Eigenmann, 1912 -- valid
  Parastremma sadina Eigenmann, 1912 -- valid
  Parataeniophorus Bertelsen and Marshall, 1956 -- valid
  Parataeniophorus bertelseni Shiganova, 1989 -- valid
  Parataeniophorus gulosus Bertelsen and Marshall, 1956 -- valid
  Parateleopus Smith and Radcliffe in Radcliffe, 1912 -- valid
  Paratherina Kottelat, 1990 -- valid
  Paratrygon aiereba (Müller and Henle, 1841) -- valid
  Parauchenipterus Bleeker, 1862 -- invalid
  Parauchenoglanis Boulenger, 1911 -- valid
  Parauchenoglanis macrostoma (Pellegrin, 1909) -- invalid
  Paravandellia Miranda Ribeiro, 1912 -- valid
  Paraxenomystax Reid, 1940 -- invalid
  Parazacco spilurus (Günther, 1868) -- valid
  Parazen Kamohara, 1935 -- valid
  Pardachirus Günther, 1862 -- valid
  Pardachirus hedleyi Ogilby, 1916 -- valid -- southern peacock sole
  Pardachirus marmoratus (Lacepède, 1802) -- valid -- garden sole, Moses sole
  Pardachirus pavoninus (Lacepède, 1802) -- valid -- peacock sole
  Pareiodon Kner, 1855 -- valid
  Parequula Steindachner, 1879 -- valid
  Parexocoetus Bleeker, 1865 -- valid
  Paricelinus Eigenmann and Eigenmann, 1889 -- valid
  Pariolanthus Smith, 1968 -- invalid
  Parmaturus Garman, 1906 -- valid -- filetail cat sharks
  Parmaturus campechiensis Springer, 1979 -- valid -- Campeche shark, Campeche cat shark
  Parmaturus manis Springer, 1979 -- invalid
  Parmaturus melanobranchus (Chan, 1966) -- valid -- blackgill catshark
  Parmaturus pilosus Garman, 1906 -- valid -- salamander shark
  Parmaturus stenseni Springer, 1979 -- invalid
  Parmaturus xaniurus (Gilbert, 1892) -- valid -- pejegato lima, filetail cat shark
  Parodon Valenciennes in Cuvier and Valenciennes, 1850 -- valid
  Parodon pongoensis (Allen in Eigenmann and Allen, 1942) -- valid
  Parophidion Tortonese, 1954 -- valid
  Parophrys Girard, 1854 -- valid
  Parotocinclus Eigenmann and Eigenmann, 1889 -- valid
  Parupeneus Bleeker, 1863 -- valid
  Parupygus Hoedeman, 1962 -- invalid
  Pastinachus sephen (Forsskċl, 1775) -- valid
  Pataecus Richardson, 1844 -- valid -- indian fishes
  Paulicea Ihering, 1898 -- invalid
  Peaolopesia Smith, 1949 -- invalid
  Peaolopesia matthaei Valenciennes in Cuvier and Valenciennes, 1839 -- invalid -- purplelined wrasse
  Peckoltia Miranda Ribeiro, 1912 -- valid
  Peckoltia pulcher (Steindachner, 1915) -- invalid
  Peckoltia vittata (Steindachner, 1881) -- valid
  Pegasus Linnaeus, 1758 -- valid
  Pegusa Günther, 1862 -- valid
  Pelagocyclus Lindberg and Legeza, 1955 -- invalid
  Pelecanichthys Gilbert & Cramer, 1897 -- invalid
  Pelecanichthys crumenalis Gilbert & Cramer, 1897 -- invalid
  Pelecus Agassiz, 1835 -- valid
  Pelecus cultratus (Linnaeus, 1758) -- valid -- ziege, razor fish, sichel
  Pellisolus Parr, 1951 -- invalid
  Pellona Valenciennes in Cuvier and Valenciennes, 1847 -- valid
  Pellona castelnaeana Valenciennes in Cuvier and Valenciennes, 1847 -- valid -- Amazon pellona
  Pellona dayi Wongratana, 1983 -- valid -- Day's pellona
  Pellona ditchela Valenciennes in Cuvier and Valenciennes, 1847 -- valid -- Indian pellona, alose-écaille indienne, sardinata indica
  Pellona flavipinnis (Valenciennes, 1836) -- valid -- yellowfin river pellona
  Pellona harroweri (Fowler, 1917) -- valid -- caille, American coastal pellona
  Pellonula Günther, 1868 -- valid
  Pellonula leonensis Boulenger, 1916 -- valid -- smalltoothed pellonula
  Pellonula leonensis afzeliusi Johnels, 1954 -- valid
  Pellonula leonensis leonensis Boulenger, 1916 -- valid
  Pellonula leonensis miri (Daget, 1954) -- valid
  Pellonula vorax Günther, 1868 -- valid -- bigtoothed pellonula
  Pelor Cuvier in Cuvier and Valenciennes, 1829 -- invalid
  Pelotretis Waite, 1911 -- valid
  Pelotretis flavilatus Waite, 1911 -- valid -- New Zealand lemon sole, southern lemon sole
  Pelteobagrus Bleeker, 1864 -- valid
  Pelteobagrus virgatus (Oshima, 1926) -- invalid
  Peltorhamphus Günther, 1862 -- valid
  Peltorhamphus latus James, 1972 -- valid -- speckled sole
  Peltorhamphus novaezeelandiae Günther, 1862 -- valid -- New Zealand common sole, New Zealand sole
  Peltorhamphus tenuis James, 1972 -- valid
  Penetopteryx Lunel, 1881 -- valid
  Pentanchus Smith and Radcliffe in Smith, 1912 -- valid
  Pentanchus herklotsi Fowler, 1934 -- invalid
  Pentanchus investigatoris Misra, 1962 -- invalid
  Pentanchus profundicolus Smith and Radcliffe in Smith, 1912 -- valid -- onefin catshark
  Pentanchus spongiceps (Gilbert, 1905) -- invalid
  Pentanchus verweyi Fowler, 1934 -- invalid
  Pentanemus Günther, 1860 -- valid
  Pentapodus Quoy and Gaimard, 1824 -- valid
  Pentaprion Bleeker, 1850 -- valid
  Perca Linnaeus, 1758 -- valid -- yellow perches
  Percalates Ramsey and Oligby, 1887 -- invalid
  Percarina Nordmann, 1840 -- valid
  Percichthys Girard, 1855 -- valid
  Percilia Girard, 1855 -- valid
  Percina Haldeman, 1842 -- valid -- roughbelly darters
  Percina austroperca Thompson, 1995 -- valid -- Southern Logperch
  Percis Scopoli, 1777 -- valid
  Percopsis Agassiz, 1849 -- valid -- trout-perches
  Perilampus McClelland, 1839 -- invalid
  Perilampus aequipinnatus McClelland, 1839 -- invalid
  Periophthalmus kalolo Lesson, 1831 -- valid -- Kalolo mudskipper
  Perissias Jordan & Evermann, 1898 -- valid
  Perissias taeniopterus (Gilbert, 1890) -- valid -- flag flounder, lenguado bandera, Flag Flounder
  Peristedion Lacepède, 1801 -- valid
  Peristrominous Whitley, 1952 -- valid
  Perryena Whitley, 1940 -- valid
  Persparsia Parr, 1951 -- valid
  Perulibatrachus Roux and Whitley, 1972 -- valid
  Petacara Böhlke, 1959 -- invalid
  Petalichthys Regan, 1904 -- valid
  Petersius caudalis Boulenger, 1899 -- invalid
  Petersius spilopterus Boulenger, 1909 -- invalid
  Petitella Géry and Boutière, 1964 -- valid
  Petitella georgiae Géry and Boutière, 1964 -- valid -- false red nose tetra, false rummy-nosed tetra, false red nose tetra, false rummy-nosed tetra
  Petronason Swainson, 1839 -- invalid
  Petrotyx Heller and Snodgrass, 1903 -- valid
  Phaenomonas Myers and Wade, 1941 -- valid
  Phaenomonas cooperae Palmer, 1970 -- valid
  Phaenomonas longissima (Cadenat and Marchal, 1963) -- valid -- short-maned sand eel
  Phaenomonas pinnata Myers and Wade, 1941 -- valid -- elastic eel, tieso elástico
  Phaenopogon barbulifer Herre, 1935 -- invalid
  Phago Günther, 1865 -- valid
  Phago boulengeri Schilthuis, 1891 -- valid
  Phago loricatus Günther, 1865 -- valid
  Phago maculatus Ahl, 1922 -- invalid -- pike characin, African pike characin, pike characin
  Phallichthys Hubbs, 1924 -- valid
  Phalloceros Eigenmann, 1907 -- valid
  Phallocottus Schultz, 1938 -- valid
  Phalloptychus Eigenmann, 1907 -- valid
  Phallostethus Regan, 1913 -- valid
  Phallotorynus Henn, 1916 -- valid
  Phasmatocottus Bolin, 1936 -- valid
  Phenacobius Cope, 1867 -- valid -- suckermouth minnows
  Phenacobius catostomus Jordan, 1877 -- valid -- Riffle Minnow
  Phenacobius crassilabrum Minckley and Craddock, 1962 -- valid -- Fatlips Minnow
  Phenacobius mirabilis (Girard, 1856) -- valid -- Suckermouth Minnow
  Phenacobius teretulus Cope, 1867 -- valid -- Kanawha Minnow
  Phenacobius uranops Cope, 1867 -- valid -- Stargazing Minnow
  Phenacogaster Eigenmann, 1907 -- valid
  Phenacogaster bondi Fowler, 1911 -- invalid
  Phenacogaster megalostictus Eigenmann, 1909 -- valid
  Phenacogrammus Eigenmann in Eigenmann and Ogle, 1907 -- valid
  Phenacogrammus gabonensis (Poll, 1967) -- valid
  Phenacogrammus interruptus (Boulenger, 1899) -- valid -- Congo tetra
  Phenacoscorpius Fowler, 1938 -- valid
  Phenacostethus Myers, 1928 -- valid
  Pholioides Nielsen, 1961 -- invalid
  Photocorynus Regan, 1925 -- valid
  Photonectes Günther, 1887 -- valid
  Photonectoides Koefoed, 1956 -- invalid
  Photostomias Collett, 1889 -- valid
  Photostomias mirabilis (Beebe, 1933) -- valid -- deepsea loosejaw
  Photostylus Beebe, 1933 -- valid
  Phoxinus Rafinesque, 1820 -- valid -- redbelly daces
  Phoxinus cumberlandensis Starnes and Starnes, 1978 -- invalid -- blackside dace
  Phoxinus eos (Cope, 1861) -- invalid -- northern redbelly dace, ventre rouge du nord
  Phoxinus erythrogaster (Rafinesque, 1820) -- invalid -- southern redbelly dace
  Phoxinus neogaeus Cope, 1867 -- invalid -- finescale dace, ventre citron
  Phoxinus oreas (Cope, 1868) -- invalid -- mountain redbelly dace
  Phoxinus phoxinus (Linnaeus, 1758) -- valid -- minnow
  Phractocephalus Agassiz in Spix and Agassiz, 1829 -- valid
  Phractocephalus hemioliopterus (Bloch and Schneider, 1801) -- valid -- redtail catfish, pirarara
  Phractolaemus Boulenger, 1901 -- valid
  Phractolaemus ansorgii Boulenger, 1901 -- valid -- African mudfish
  Phractura Boulenger, 1900 -- valid
  Phractura brevicauda Boulenger, 1911 -- valid
  Phrynelox Whitley, 1931 -- invalid
  Phrynelox cunninghami (Fowler, 1941) -- invalid
  Phrynelox nuttingii (Garman, 1896) -- invalid
  Phrynelox scaber (Cuvier, 1817) -- invalid
  Phrynorhombus Günther, 1862 -- valid
  Phtheirichthys Gill, 1862 -- valid
  Phycis Artedi in Walbaum, 1792 -- valid -- American lings
  Phyllophryne Pietsch, 1984 -- valid
  Phyllopteryx Swainson, 1839 -- valid
  Physailia Boulenger, 1901 -- invalid -- African glass catfish
  Physailia pellucida Boulenger, 1901 -- invalid -- African glass catfish
  Physiculus Kaup, 1858 -- valid
  Physodon Valenciennes in Müller and Henle, 1838 -- invalid
  Physodon muelleri (Müller and Henle, 1839) -- invalid
  Physodon taylori Ogilby, 1915 -- invalid
  Piabuca spilurus Günther, 1864 -- invalid
  Piabucina Valenciennes in Cuvier and Valenciennes, 1850 -- valid
  Piabucus Oken, 1817 -- valid
  Piabucus dentatus (Koelreuter, 1763) -- valid
  Piaractus Eigenmann, 1903 -- valid
  Piaractus brachypomus (Cuvier, 1817) -- valid -- pirapatinga
  Pictilabrus Gill, 1891 -- valid
  Pietschichthys Kharin, 1989 -- invalid
  Pikea Steindachner, 1875 -- invalid
  Pillaia Yazdani, 1972 -- valid
  Pimelodella Eigenmann and Eigenmann, 1888 -- valid
  Pimelodella cristata (Müller and Troschel, 1849) -- valid
  Pimelodus Lacepède, 1803 -- valid
  Pimelodus blochii Valenciennes in Cuvier and Valenciennes, 1840 -- valid
  Pimelodus maculatus Lacepède, 1803 -- valid -- Congo barbaso
  Pimelometopon Gill, 1864 -- invalid
  Pimephales Rafinesque, 1820 -- valid -- bluntnose minnows
  Pimephales notatus (Rafinesque, 1820) -- valid -- Bluntnose Minnow, ventre-pourri
  Pimephales promelas Rafinesque, 1820 -- valid -- Fathead Minnow, carpita cabezona, tête-de-boule
  Pimephales tenellus (Girard, 1856) -- valid -- Slim Minnow
  Pimephales vigilax (Baird and Girard, 1853) -- valid -- Bullhead Minnow, carpita cabeza de toro
  Pinjalo Bleeker, 1873 -- valid
  Pisodonophis Kaup, 1856 -- valid
  Pisodonophis cancrivorus (Richardson, 1848) -- valid
  Pisodonophis cruentifer Goode and Bean, 1896 -- invalid
  Pisodonophis semicinctus (Richardson, 1848) -- valid
  Pithecocharax anostomus (Linnaeus, 1758) -- invalid
  Pithecocharax trimaculatus (Kner, 1858) -- invalid
  Pituna Costa, 1989 -- valid
  Plagiogenion Forbes, 1890 -- invalid
  Plagiopsetta Franz, 1910 -- valid
  Plagiopsetta glossa Franz, 1910 -- valid
  Plagopterus Cope, 1874 -- valid -- woundfins
  Plagopterus argentissimus Cope, 1874 -- valid -- carpita afilada, Woundfin
  Plancterus Garman, 1895 -- invalid
  Platanichthys Whitehead, 1968 -- valid
  Platanichthys platana (Regan, 1917) -- valid -- River Plate sprat
  Plataplochilus Ahl, 1928 -- valid
  Platax ocellatus Cuvier in Cuvier and Valenciennes, 1831 -- invalid
  Platessa Cuvier, 1816 -- invalid
  Platessa asperrima Temminck & Schlegel, 1846 -- invalid
  Platessa bicolorata Basilewsky, 1855 -- invalid
  Platessa cornuta Temminck & Schlegel, 1846 -- invalid
  Platessa ferruginea Storer, 1839 -- invalid
  Platessa variegata Temminck & Schlegel, 1846 -- invalid
  Platichthys Girard, 1854 -- valid -- starry flounders
  Platichthys flesus (Linnaeus, 1758) -- valid -- European flounder, North Atlantic flounder, white fluke, flounder
  Platichthys flesus flesus (Linnaeus, 1758) -- invalid
  Platichthys flesus luscus (Pallas, 1814) -- invalid -- Black Sea flounder
  Platichthys flesus septentrionalis (Berg, 1949) -- invalid -- northern flounder
  Platichthys stellatus (Pallas, 1787) -- valid -- starry flounder, Starry Flounder, flet étoilé
  Platophrys Agassiz in Spix & Agassiz, 1829 -- invalid
  Platophrys thompsoni Fowler, 1923 -- invalid
  Platuronides Roule and Bertin, 1924 -- invalid
  Platuronides ophiocephalus Parr, 1932 -- invalid
  Platybelone Fowler, 1919 -- valid
  Platyberyx Zugmayer, 1911 -- valid
  Platycephalus Bloch, 1795 -- valid -- flatheads
  Platychoerops Klunzinger, 1880 -- invalid
  Platydoras Bleeker, 1862 -- valid
  Platydoras costatus (Linnaeus, 1758) -- valid -- Raphael catfish
  Platyglanis Daget, 1979 -- valid
  Platyglanis depierrei Daget, 1979 -- valid
  Platyglossus Bleeker, 1862 -- invalid
  Platygobio Gill, 1863 -- valid -- flathead chubs
  Platypodon Gill, 1862 -- invalid
  Platypodon coatesi Whitley, 1939 -- invalid
  Platypodon gangeticus (Müller and Henle, 1839) -- invalid
  Platypodon perezii Poey, 1876 -- invalid
  Platyrhina Müller and Henle, 1838 -- valid
  Platyrhina sinensis (Bloch and Schneider, 1801) -- valid
  Platyrhinoidis triseriata (Jordan and Gilbert, 1880) -- valid -- guitarra espinuda, thornback
  Platystacus chaca Hamilton, 1822 -- invalid
  Plecoglossus Temminck and Schlegel, 1846 -- valid -- ayu
  Plecostomus Gronow in Walbaum, 1792 -- invalid
  Plectorhinchus Lacepède, 1801 -- valid -- sweetlips
  Plectorhinchus diagramma (Linnaeus, 1758) -- invalid
  Plectranthias Bleeker, 1873 -- valid
  Plectranthias kelloggi (Jordan and Evermann, 1903) -- valid
  Plectrochilus Miranda Ribeiro, 1917 -- valid
  Plectrogenium Gilbert, 1905 -- valid
  Plectroglyphidodon Fowler and Ball, 1924 -- valid
  Plectroglyphidodon dickii (Liénard, 1839) -- valid -- blackbar devil, narrowbar damsel
  Plectroglyphidodon imparipennis (Vaillant and Sauvage, 1875) -- valid -- stop-start damsel, brighteye damselfish
  Plectroglyphidodon johnstonianus Fowler and Ball, 1924 -- valid
  Plectroglyphidodon lacrymatus (Quoy and Gaimard, 1825) -- valid -- jewel damsel, whitespeckled demoiselle, yellowtail, whitespotted devil
  Plectroglyphidodon leucozonus (Bleeker, 1859) -- valid -- coralfish, singlebar devil, whitebar damselfish
  Plectroglyphidodon phoenixensis (Schultz, 1943) -- valid -- Phoenix devil
  Plectroglyphidodon sindonis (Jordan and Evermann, 1903) -- valid
  Plectromus macrophthalmus Gilchrist, 1903 -- invalid
  Plectroplites Gill, 1862 -- invalid
  Plectropomus Oken, 1817 -- valid
  Plectropomus melanoleucus (Lacepède, 1802) -- invalid
  Plectrostethus Myers, 1935 -- invalid
  Plesiobatis Nishida, 1990 -- valid
  Plesiobatis daviesi (Wallace, 1967) -- valid
  Plesiops Oken, 1817 -- valid
  Plesiotrygon iwamae Rosa, Castello and Thorson, 1987 -- valid
  Pleurogrammus Gill, 1861 -- valid -- atka mackerels
  Pleuronectes Linnaeus, 1758 -- valid -- plaices, northern flounders
  Pleuronectes americanus Walbaum, 1792 -- invalid -- winter flounder, plie rouge
  Pleuronectes argus Bloch, 1783 -- invalid
  Pleuronectes asper Pallas, 1814 -- invalid -- yellowfin sole
  Pleuronectes bilineatus Bloch, 1787 -- invalid -- rock sole
  Pleuronectes bogdanovii Sandeberg, 1878 -- invalid
  Pleuronectes cynoglossus Linnaeus, 1758 -- invalid
  Pleuronectes erumei Bloch & Schneider, 1801 -- invalid
  Pleuronectes ferrugineus (Storer, 1839) -- invalid -- yellowtail flounder, limande à queue jaune
  Pleuronectes flesus Linnaeus, 1758 -- invalid
  Pleuronectes glacialis Pallas, 1776 -- invalid -- Arctic flounder, Arctic Flounder, plie arctique
  Pleuronectes herzensteini (Jordan & Snyder, 1901) -- invalid -- littlemouth flounder, magarei
  Pleuronectes hippoglossoides Walbaum, 1792 -- invalid
  Pleuronectes hippoglossus Linnaeus, 1758 -- invalid
  Pleuronectes limanda Linnaeus, 1758 -- invalid -- dab
  Pleuronectes linguatula Linnaeus, 1758 -- invalid
  Pleuronectes luscus Pallas, 1814 -- invalid
  Pleuronectes luteus Risso, 1810 -- invalid
  Pleuronectes maculiferus Poey, 1860 -- invalid
  Pleuronectes maeoticus Pallas, 1814 -- invalid
  Pleuronectes mochigarei (Snyder, 1911) -- invalid
  Pleuronectes nalaka Cuvier, 1829 -- invalid
  Pleuronectes oblongus Mitchill, 1815 -- invalid
  Pleuronectes ocellatus Linnaeus, 1758 -- invalid
  Pleuronectes pallasii Steindachner, 1879 -- invalid
  Pleuronectes pinnifasciatus Kner in Steindachner & Kner, 1870 -- invalid
  Pleuronectes platessa Linnaeus, 1758 -- valid -- European plaice, plaice
  Pleuronectes platessoides Fabricius, 1780 -- invalid
  Pleuronectes proboscideus (Gilbert, 1896) -- invalid -- longhead dab
  Pleuronectes punctatissimus (Steindachner, 1879) -- invalid -- longsnout flounder, sand flounder, speckled flounder, sunagarei
  Pleuronectes putnami (Gill, 1864) -- invalid -- smooth flounder, eelback, smoothback flounder, plie lisse, Smooth Flounder
  Pleuronectes quadrituberculatus Pallas, 1814 -- valid -- Alaska plaice, Alaska Plaice
  Pleuronectes schrenki (Schmidt, 1904) -- invalid -- cresthead flounder, sand flounder, sunagarei
  Pleuronectes stellatus Pallas, 1787 -- invalid
  Pleuronectes variegatus Donovan, 1808 -- invalid
  Pleuronectes yokohamae Günther, 1877 -- invalid -- makogarei, marbled flounder
  Pleuronichthys Girard, 1854 -- valid
  Pleuronichthys coenosus Girard, 1854 -- valid -- C-O sole, platija de fango, C-O Sole, plie vaseuse
  Pleuronichthys cornutus (Temminck & Schlegel, 1846) -- valid -- neitagarei, ridge-eye flounder
  Pleuronichthys decurrens Jordan & Gilbert, 1881 -- valid -- curlfin sole, platija aleta de rizo, Curlfin Sole, plie à nageoires frisées
  Pleuronichthys ocellatus Starks & Thompson, 1910 -- valid -- ocellated turbot, platija ocelada, Ocellated Turbot
  Pleuronichthys ritteri Starks & Morris, 1907 -- valid -- spotted turbot, platija moteada, Spotted Turbot
  Pleuronichthys verticalis Jordan & Gilbert, 1880 -- valid -- hornyhead turbot, platija cornuda, Hornyhead Turbot
  Plicomugil Schultz in Schultz, Herald, Lachner, Welander and Woods, 1953 -- invalid
  Pliosteostoma Norman, 1923 -- valid
  Pliosteostoma lutipinnis (Jordan and Gilbert, 1882) -- valid -- arenquilla aleta amarilla, yellowfin herring
  Plotosus Lacepède, 1803 -- valid
  Plotosus anguillaris (Bloch, 1794) -- invalid -- striped sea catfish
  Plotosus canius Hamilton, 1822 -- valid -- canine catfish eel, eel catfish, patuna canina, balibot canin
  Plotosus limbatus Valenciennes in Cuvier and Valenciennes, 1840 -- valid -- eel-catfish
  Plotosus lineatus (Thunberg, 1787) -- valid -- striped eel-catfish, striped eel catfish, patuna rayada, balibot rayé
  Plotosus microceps Richardson, 1845 -- invalid
  Poblana de Buen, 1945 -- valid
  Podothecus Gill, 1861 -- valid
  Poecilia Bloch and Schneider, 1801 -- valid -- livebearers, mollies
  Poeciliopsis Regan, 1913 -- valid -- desert topminnows
  Poecilobrycon Eigenmann, 1909 -- invalid
  Poecilobrycon auratus Eigenmann, 1909 -- invalid
  Poecilobrycon espei Meinken, 1956 -- invalid
  Poecilobrycon ocellatus Eigenmann, 1909 -- invalid
  Poecilobrycon trifasciatus (Steindachner, 1876) -- invalid
  Poecilobrycon unifasciatus (Steindachner, 1876) -- invalid
  Poecilocharax Eigenmann, 1909 -- valid
  Poecilocharax bovalii Eigenmann, 1909 -- valid
  Poecilopsetta Günther, 1880 -- valid
  Poecilopsetta albomaculata Norman, 1939 -- valid
  Poecilopsetta beanii (Goode, 1881) -- valid -- lenguado ojón, deepwater dab, Deepwater Dab
  Poecilopsetta bicolorata von Bonde, 1922 -- invalid
  Poecilopsetta hawaiiensis Gilbert, 1905 -- valid
  Poecilopsetta inermis (Breder, 1927) -- valid
  Poecilopsetta megalepis Fowler, 1934 -- invalid
  Poecilopsetta natalensis Norman, 1931 -- valid -- taileyed flounder
  Poecilopsetta plinthus (Jordan & Starks, 1904) -- valid
  Poecilopsetta praelonga Alcock, 1894 -- valid -- Alcock's crested flounder
  Poecilopsetta zanzibarensis Norman, 1939 -- valid
  Poecilopsettidae -- valid -- bigeye flounders, lenguados ojones, plies à grands yeux
  Poecilothrissa Regan, 1917 -- valid
  Poecilothrissa centralis Poll, 1974 -- valid -- Central Zaire pellonuline
  Poecilothrissa congica Regan, 1917 -- valid -- bigscale pellonuline
  Poecilothrissa moeruensis Poll, 1948 -- valid -- Lake Mweru sprat
  Pogonias Lacepède, 1801 -- valid -- black drums
  Pogonichthys Girard, 1854 -- valid -- splittails
  Pogonichthys ciscoides Hopkirk, 1974 -- valid -- Clear Lake Splittail
  Pogonoperca Günther, 1859 -- valid
  Polistonemus Gill, 1861 -- invalid
  Pollachius Nilsson, 1832 -- valid -- pollocks
  Pollichthys Grey, 1959 -- valid
  Polyacanthonotus Bleeker, 1874 -- valid
  Polyacanthonotus altus (Gill and Townsend, 1897) -- invalid
  Polyacanthonotus challengeri (Vaillant, 1888) -- valid
  Polyacanthonotus merretti Sulak, Crabtree and Hureau, 1984 -- valid
  Polyacanthonotus rissoanus (De Filippi and Verany, 1857) -- valid -- smallmouth spiny eel
  Polydactylus Lacepède, 1803 -- valid -- barbudos, barbus
  Polyipnus Günther, 1887 -- valid
  Polylepion Gomon, 1977 -- valid
  Polylepion russelli (Gomon and Randall, 1975) -- valid
  Polymetme McCulloch, 1926 -- valid
  Polymixia Lowe, 1838 -- valid -- barbudo
  Polynemus Linnaeus, 1758 -- valid -- threadfins, barbudos, barbudos, threadfins
  Polyodon spathula (Walbaum, 1792) -- valid -- paddlefish, American paddlefish
  Polypera Burke, 1912 -- valid
  Polyprion Oken, 1817 -- valid
  Polypterus Lacepède, 1803 -- valid
  Polypterus ansorgii Boulenger, 1910 -- valid
  Polypterus bichir Geoffroy St. Hilaire, 1802 -- invalid -- Nile bichir
  Polypterus bichir Lacepède, 1803 -- valid -- Nile bichir
  Polypterus buettikoferi Steindachner, 1891 -- invalid
  Polypterus delhezi Boulenger, 1899 -- valid -- barred bichir
  Polypterus endlicherii Heckel, 1847 -- valid -- saddled bichir
  Polypterus lapradei Steindachner, 1869 -- invalid
  Polypterus lowei Boulenger, 1911 -- invalid
  Polypterus niloticus Shaw, 1804 -- invalid
  Polypterus ornatipinnis Boulenger, 1902 -- valid
  Polypterus palmas Ayres, 1850 -- valid -- marbled bichir, shortfin bichir
  Polypterus polli Gosse, 1988 -- valid
  Polypterus retropinnis Vaillant, 1899 -- valid -- West African bichir
  Polypterus schoutedeni Pellegrin, 1923 -- invalid
  Polypterus senegalus Cuvier, 1829 -- valid -- gray bichir
  Polypterus weeksii Boulenger, 1898 -- valid -- mottled bichir
  Pomacanthus Lacepède, 1802 -- valid -- black angelfishes
  Pomacanthus navarchus (Cuvier in Cuvier and Valenciennes, 1831) -- valid -- bluegirdled angelfish
  Pomacanthus sexstriatus (Cuvier in Cuvier and Valenciennes, 1831) -- valid -- sixbanded angelfish
  Pomacanthus xanthometopon (Bleeker, 1853) -- valid -- bluefaced angelfish, yellowfaced angelfish
  Pomacentrus Lacepède, 1802 -- valid
  Pomacentrus annulatus Peters, 1855 -- invalid
  Pomacentrus jerdoni Day, 1873 -- invalid
  Pomacentrus lunula Lacepède, 1802 -- invalid
  Pomacentrus marginatus Rüppell, 1829 -- invalid
  Pomacentrus obreptus Whitley, 1948 -- invalid
  Pomacentrus trimaculatus Rüppell, 1829 -- invalid
  Pomadasys Lacepède, 1802 -- valid -- burros, grunters, javelinfishes, gray grunts
  Pomatomus Lacepède, 1802 -- valid -- bluefishes
  Pomotis chaetodon Baird, 1855 -- invalid
  Pomotis gulosus Cuvier in Cuvier and Valenciennes, 1829 -- invalid
  Pomotis obesus Girard, 1854 -- invalid
  Pontinus Poey, 1860 -- valid
  Popondetta Allen, 1980 -- invalid
  Popondichthys Allen, 1987 -- valid
  Poptella Eigenmann, 1908 -- valid
  Poptella orbicularis (Valenciennes in Cuvier and Valenciennes, 1850) -- invalid
  Porichthys Girard, 1854 -- valid
  Porochilus Weber, 1913 -- valid
  Porochilus meraukensis (Weber, 1913) -- valid
  Porocottus Gill, 1859 -- valid -- fringed sculpins
  Poroderma Smith, 1838 -- valid -- barbeled cat sharks
  Poroderma africanum (Gmelin, 1789) -- valid -- striped catshark
  Poroderma marleyi Fowler, 1934 -- invalid -- barbeled catshark
  Poroderma pantherinum (Müller and Henle, 1838) -- valid -- leopard catshark
  Porogadus Goode and Bean, 1885 -- valid
  Poromitra Goode and Bean, 1883 -- valid
  Poromitra capito Goode and Bean, 1883 -- valid
  Poromitra crassa Parin and Ebeling, 1980 -- valid
  Poromitra crassiceps (Günther, 1878) -- valid -- crested bigscale, crested bigscale
  Poromitra megalops (Lütken, 1878) -- valid
  Poropuntius Smith, 1931 -- valid
  Poropuntius deauratus (Valenciennes in Cuvier and Valenciennes, 1842) -- valid
  Porotergus Ellis in Eigenmann, 1912 -- valid
  Potamalosa Ogilby, 1897 -- valid
  Potamalosa antiqua Ogilby, 1897 -- valid
  Potamalosa richmondia (Macleay, 1879) -- valid -- Australian freshwater herring
  Potamarius Hubbs and Miller, 1960 -- valid
  Potamarius izabalensis Hubbs and Miller, 1960 -- valid
  Potamarius nelsoni (Evermann and Goldsborough, 1902) -- valid -- Lacandon sea catfish, bagre lacandón
  Potamorhina Cope, 1878 -- valid
  Potamorhina latior (Spix and Agassiz, 1829) -- valid
  Potamorrhaphis Günther, 1866 -- valid
  Potamothrissa Regan, 1917 -- valid
  Potamothrissa acutirostris (Boulenger, 1899) -- valid -- sharpnosed sawtooth pellonuline
  Potamothrissa obtusirostris (Boulenger, 1909) -- valid -- bluntnosed sawtooth pellonuline
  Potamothrissa whiteheadi Poll, 1974 -- valid -- Whitehead's sawtooth pellonuline
  Potamotrygon Garman, 1877 -- valid
  Potamotrygon castexi Castello and Yagolkowski, 1969 -- invalid
  Potamotrygon dorbignyi (Castelnau, 1855) -- invalid
  Potamotrygon hystrix (Müller and Henle, 1841) -- valid
  Potamotrygon laticeps Garman, 1913 -- invalid -- freshwater stingray
  Potamotrygon magdalenae (Duméril, 1865) -- valid
  Potamotrygon motoro (Müller and Henle, 1841) -- valid
  Potamotrygon yepezi Castex and Castello, 1970 -- valid
  Potomotrygonidae -- invalid
  Powellichthys Smith, 1966 -- valid
  Powellichthys ventriosus Smith, 1966 -- valid
  Pranesus Whitley, 1930 -- invalid
  Pranesus endrachtensis (Quoy and Gaimard, 1825) -- invalid -- grey hardyhead
  Pranesus insularum (Jordan and Evermann, 1903) -- invalid
  Pranesus ogilbyi Whitley, 1930 -- invalid -- common hardyhead
  Pranesus pinguis (Lacépède, 1803) -- invalid -- hardyhead silverside
  Priacanthus Oken, 1817 -- valid -- bigeyes
  Priapella Regan, 1913 -- valid
  Priapichthys Regan, 1913 -- valid
  Prietella Carranza, 1954 -- valid
  Prietella phreatophila Carranza, 1954 -- valid -- Mexican blind catfish, Mexican Blindcat, bagre ciego de Múzquiz
  Priocharax Weitzman and Vari, 1987 -- valid
  Priocharax ariel Weitzman and Vari, 1987 -- valid
  Priocharax pygmaeus Weitzman and Vari, 1987 -- valid
  Prionace Cantor, 1849 -- valid
  Prionace glauca (Linnaeus, 1758) -- valid -- blue shark, tiburón azul, requin bleu
  Prionace mackiei Phillipps, 1935 -- invalid
  Prionobrama Fowler, 1913 -- valid
  Prionobrama filigera (Cope, 1870) -- valid -- glass bloodfish, glass bloodfish
  Prionobrama madeirae Fowler, 1913 -- invalid
  Prionotus Lacepède, 1801 -- valid -- North American searobins
  Pristella Eigenmann, 1908 -- valid
  Pristella maxillaris (Ulrey, 1894) -- valid -- x-ray fish, x-ray fish
  Pristigaster Cuvier, 1816 -- valid
  Pristigaster cayana Cuvier, 1829 -- valid -- Amazon hatchet herring
  Pristigenys Agassiz, 1835 -- valid
  Pristiophorus cirratus (Latham, 1794) -- valid -- longnose sawshark
  Pristiophorus nudipinnis Günther, 1870 -- valid -- shortnose sawshark
  Pristiophorus schroederi Springer and Bullis, 1960 -- valid -- Bahamas sawshark, Bahamas saw shark
  Pristipomoides Bleeker, 1852 -- valid -- King Snappers, Jobfishes, Colas, Panchito
  Pristipomoides macropthalmus (Müller and Troschel in Schomburgk, 1848) -- invalid -- voraz, cardinal snapper
  Pristipomoides microlepis (Bleeker, 1869) -- invalid -- king snapper, roseate jobfish
  Pristis microdon Latham, 1794 -- valid -- freshwater sawfish, Greattooth sawfish, smalltooth sawfish
  Pristis pectinata Latham, 1794 -- valid -- pez sierra peine, pez sierra, wide sawfish, smalltooth sawfish
  Pristis perotteti Müller and Henle, 1841 -- valid -- largetooth sawfish
  Pristis pristis (Linnaeus, 1758) -- valid -- pez sierra común, largetooth sawfish, sawfish, common sawfish
  Pristis zijsron Bleeker, 1851 -- valid
  Pristiurus Bonaparte, 1834 -- invalid
  Pristiurus arae Nichols, 1927 -- invalid
  Pristiurus boardmani Whitley, 1928 -- invalid
  Pristiurus eastmani Jordan and Snyder, 1904 -- invalid
  Pristiurus hertwigi Engelhardt, 1912 -- invalid
  Pristiurus jenseni Saemundsson, 1922 -- invalid
  Pristiurus murinus Collett, 1904 -- invalid
  Pristiurus sauteri Jordan and Richardson, 1909 -- invalid
  Pristotis Rüppell, 1838 -- valid
  Pristotis jerdoni (Day, 1873) -- invalid -- green puller, gulf damselfish
  Probarbus Sauvage, 1880 -- valid
  Probarbus jullieni Sauvage, 1880 -- valid -- ikan temolek, Ikan temoleh
  Probolodus Eigenmann, 1911 -- valid
  Probolodus heterostomus Eigenmann, 1911 -- valid
  Procetichthys Paxton, 1989 -- valid
  Prochilodus Agassiz in Spix and Agassiz, 1829 -- valid
  Prochilodus insignis Jardine and Schomburgk in Schomburgk, 1841 -- invalid -- flagtail, flagtail
  Prochilodus scrofa Steindachner, 1881 -- invalid
  Procottus Gratcianov, 1902 -- valid
  Profundulus Hubbs, 1924 -- valid
  Prognathodes guyotensis (Yamamoto and Tameka in Okamura, Amaoka and Mitani, 1982) -- valid
  Prognichthys Breder, 1928 -- valid
  Pronotogrammus Gill, 1863 -- valid
  Proscyllium Hilgendorf, 1904 -- valid -- graceful cat sharks
  Proscyllium alcocki Misra, 1950 -- invalid
  Proscyllium habereri Hilgendorf, 1904 -- valid -- graceful catshark
  Proscyllium venustum (Tanaka, 1912) -- valid
  Prosopium Jordan, 1878 -- valid -- round whitefishes
  Prososcopa Rass, 1961 -- invalid
  Protomyctophum Fraser-Brunner, 1949 -- valid
  Protomyzon Hora, 1932 -- valid
  Protomyzon aphelocheilus Inger and Chin, 1962 -- valid
  Protosalanx Regan, 1908 -- valid
  Protosciaena Sasaki, 1989 -- valid
  Prototroctes Günther, 1864 -- valid
  Protozygaena Whitley, 1940 -- invalid
  Protozygaena taylori (Ogilby, 1915) -- invalid
  Psammodiscus Günther, 1862 -- valid
  Psammodiscus ocellatus Günther, 1862 -- valid
  Psammoperca Richardson, 1848 -- valid
  Psectrogaster Eigenmann and Eigenmann, 1889 -- valid
  Psectrogaster amazonica Eigenmann and Eigenmann, 1889 -- valid
  Psephurus gladius (Martens, 1862) -- valid -- Chinese paddlefish, Chinese swordfish
  Psetta Swainson, 1839 -- invalid
  Psetta maxima (Linnaeus, 1758) -- invalid -- turbot
  Psettichthys Girard, 1854 -- valid
  Psettichthys melanostictus Girard, 1854 -- valid -- sand sole, Sand Sole, sole de sable
  Psettina Hubbs, 1915 -- valid
  Psettina iijimae (Jordan & Starks, 1904) -- valid
  Psettodes Bennett, 1831 -- valid
  Psettodes belcheri Bennett, 1831 -- valid -- spiny turbot, spottail spiny turbot, spottedtail turbot
  Psettodes erumei (Bloch & Schneider, 1801) -- valid -- flounders, Queensland halibut, Indian halibut
  Pseudamia Bleeker, 1865 -- valid
  Pseudamiops Smith, 1954 -- valid
  Pseudanampses Bleeker, 1862 -- invalid
  Pseudancistrus Bleeker, 1862 -- valid
  Pseudanos Winterbottom, 1980 -- valid
  Pseudanos trimaculatus (Kner, 1858) -- valid
  Pseudanthias Bleeker, 1871 -- valid
  Pseudanthias bicolor (Randall, 1979) -- valid
  Pseudanthias smithvanizi (Randall and Lubbock, 1981) -- valid
  Pseudauchenipterus Bleeker, 1862 -- valid
  Pseudauchenipterus nodosus (Bloch, 1794) -- valid
  Pseudecheneis Blyth, 1860 -- valid
  Pseudecheneis sulcatus (McClelland, 1842) -- invalid
  Pseudeutropius Bleeker, 1862 -- valid
  Pseudeutropius mitchelli Günther, 1864 -- valid
  Pseudobagrus Bleeker, 1859 -- valid
  Pseudobagrus henryi (Herre, 1932) -- invalid
  Pseudobagrus ichikawai (Okada and Kubota, 1957) -- valid -- nekogigi
  Pseudobarbus Smith, 1841 -- valid
  Pseudobarbus asper (Boulenger, 1911) -- valid
  Pseudobarbus burchelli (Smith, 1841) -- valid
  Pseudobarbus burgi (Boulenger, 1911) -- valid
  Pseudoblennius Temminck and Schlegel, 1850 -- valid
  Pseudobrama Bleeker, 1870 -- valid
  Pseudobrama simoni (Bleeker, 1865) -- valid
  Pseudocarcharias kamoharai (Matsubara, 1936) -- valid -- tiburón cocodrilo, crocodile shark
  Pseudocarcharias pelagicus Cadenat, 1963 -- invalid
  Pseudocetopsis Bleeker, 1862 -- valid
  Pseudochaetodon nigrirostris (Gill, 1862) -- invalid
  Pseudocheilinops Schultz in Schultz, Chapman, Lachner and Wood, 1960 -- valid
  Pseudocheilinus Bleeker, 1862 -- valid
  Pseudochromis Rüppell, 1835 -- valid
  Pseudocoris Bleeker, 1862 -- valid
  Pseudocoris ocellatus Chen and Shao, 1995 -- valid
  Pseudocorynopoma Perugia, 1891 -- valid
  Pseudocorynopoma argentinus (Holmberg, 1891) -- invalid
  Pseudocorynopoma doriae Perugia, 1891 -- valid -- dragon-fin tetra, dragon-finned characin, dragon-fin tetra, dragon-finned characin
  Pseudocurimata Fernández-Yépez, 1948 -- valid
  Pseudocurimata troschelii (Günther, 1860) -- valid
  Pseudocyttus Gilchrist, 1906 -- valid
  Pseudodax Bleeker, 1861 -- valid
  Pseudodax moluccanus (Valenciennes in Cuvier and Valenciennes, 1840) -- valid
  Pseudodoras Bleeker, 1858 -- invalid
  Pseudodoras niger (Valenciennes in Humboldt and Valenciennes, 1821) -- invalid -- ripsaw catfish
  Pseudogramma Bleeker, 1875 -- valid
  Pseudohemiodon Bleeker, 1862 -- valid
  Pseudojulis Bleeker, 1862 -- invalid
  Pseudojuloides Fowler, 1949 -- valid
  Pseudolabrus Bleeker, 1862 -- valid
  Pseudolaubuca Bleeker, 1865 -- valid
  Pseudolaubuca engraulis (Nichols, 1925) -- valid
  Pseudolaubuca jouyi (Jordan and Starks, 1905) -- valid
  Pseudolaubuca sinensis Bleeker, 1865 -- valid
  Pseudoliparis Andriashev, 1955 -- valid
  Pseudoliparis amblystomopsis (Andriashev, 1955) -- valid
  Pseudomancopsetta Evseenko, 1984 -- valid
  Pseudomancopsetta andriashevi Evseenko, 1984 -- valid
  Pseudomugil Kner, 1866 -- valid -- big-eyes, big-eyes
  Pseudomyrophis Wade, 1946 -- valid
  Pseudomyrophis atlanticus Blache, 1975 -- valid
  Pseudomyrophis fugesae McCosker, Böhlke and Böhlke, 1989 -- valid -- diminutive worm eel
  Pseudomyrophis micropinna Wade, 1946 -- valid -- plain worm eel, tieso enano
  Pseudomyrophis nimius Böhlke, 1960 -- valid -- elongate worm eel
  Pseudophoxinus Bleeker, 1860 -- valid
  Pseudophoxinus handlirschi (Pietschmann, 1933) -- valid -- cicek
  Pseudophycis Günther, 1862 -- valid
  Pseudopimelodus Bleeker, 1858 -- valid
  Pseudoplatystoma Bleeker, 1862 -- valid
  Pseudoplatystoma fasciatum (Linnaeus, 1766) -- valid -- tiger catfish
  Pseudoplesiops Bleeker, 1858 -- valid
  Pseudopleuronectes Bleeker, 1862 -- valid
  Pseudopleuronectes americanus (Walbaum, 1792) -- valid -- plie rouge, blackback, Georges Bank flounder, lemon sole, rough flounder, winter flounder, Winter Flounder
  Pseudoraja atlantica Bigelow and Schroeder, 1962 -- invalid
  Pseudoraja fischeri Bigelow and Schroeder, 1954 -- valid -- fanfin skate
  Pseudorhombus Bleeker, 1862 -- valid
  Pseudorhombus affinis Weber, 1913 -- invalid -- deep flounder
  Pseudorhombus arsius (Hamilton, 1822) -- valid -- largetooth flounder, false brill, smoothscale brill
  Pseudorhombus dupliciocellatus Regan, 1905 -- valid -- fourspot flounder
  Pseudorhombus elevatus Ogilby, 1912 -- valid -- deep flounder
  Pseudorhombus javanicus (Bleeker, 1853) -- valid -- Javanese flounder
  Pseudorhombus jenynsii (Bleeker, 1855) -- valid -- smalltoothed flounder, smalltooth flounder
  Pseudorhombus malayanus Bleeker, 1865 -- valid -- roughscaled flounder
  Pseudorhombus pentophthalmus Günther, 1862 -- valid -- fivespot flounder, tamaganzobirame
  Pseudorhombus quinquocellatus Weber & de Beaufort, 1929 -- valid -- fivespot flounder
  Pseudorhombus spinosus McCulloch, 1914 -- valid -- spined flounder
  Pseudoscaphirhynchus fedtschenkoi (Kessler, 1872) -- valid -- Syr Darya sturgeon, Syr Darya shovelnose sturgeon
  Pseudoscaphirhynchus hermanni (Kessler, 1877) -- valid -- dwarf sturgeon, little shovelnose sturgeon
  Pseudoscaphirhynchus kaufmanni (Bogdanov, 1874) -- invalid
  Pseudoscaphirhynchus kaufmanni (Kessler, 1877) -- valid -- Amu Darya shovelnose sturgeon, false shovelnose sturgeon, shovelfish, Amu Darya sturgeon
  Pseudoscarus Bleeker, 1861 -- invalid
  Pseudoscarus oktodon Bleeker, 1861 -- invalid
  Pseudosynanceia Day, 1875 -- valid
  Pseudotriakis Brito Capello, 1868 -- valid
  Pseudotriakis acrales Jordan and Snyder, 1904 -- invalid
  Pseudotriakis microdon Brito Capello, 1868 -- valid -- false cat shark, falsa gata
  Pseudotylosurus Fernández-Yépez, 1948 -- valid
  Psilorhynchidae -- valid
  Psilorhynchoides Yazdani, Singh and Rao, 1993 -- invalid
  Psilorhynchus McClelland, 1839 -- valid
  Psilorhynchus aymonieri Tirant, 1883 -- invalid
  Psilorhynchus gracilis Rainboth, 1983 -- valid
  Psychrolutes Günther, 1861 -- valid -- spineless sculpins
  Ptarmus Smith, 1947 -- valid
  Pteraclis Gronow, 1772 -- valid
  Pteragogus Peters, 1855 -- valid
  Pterengraulis Günther, 1868 -- valid
  Pterengraulis atherinoides (Linnaeus, 1766) -- valid -- wingfin anchovy
  Pterocaesio Bleeker, 1876 -- valid
  Pterocryptis Peters, 1861 -- valid
  Pterocryptis gangetica Peters, 1861 -- invalid
  Pterodoras Bleeker, 1862 -- valid
  Pterohemiodus Fowler, 1940 -- invalid
  Pterohemiodus atranalis Fowler, 1940 -- invalid
  Pteroidichthys Bleeker, 1856 -- valid
  Pterois Oken, 1817 -- valid -- butterfly-cods, lionfishes, turkeyfishes, zebrafishes
  Pterois barberi Steindachner, 1900 -- invalid
  Pterois brachyptera Cuvier in Cuvier and Valenciennes, 1829 -- invalid
  Pterois lunulata Temminck and Schlegel, 1843 -- valid
  Pterois zebra Cuvier in Cuvier and Valenciennes, 1829 -- invalid
  Pterolamiops Springer, 1951 -- invalid
  Pterolamiops budkeri Fourmanoir, 1961 -- invalid
  Pterolamiops magnipinnis Smith, 1958 -- invalid
  Pterolebias Garman, 1895 -- valid
  Pterolebias elegans Ladiges, 1958 -- invalid
  Pteromylaeus Garman, 1913 -- valid -- bull rays
  Pteromylaeus asperrimus (Gilbert in Jordan and Evermann, 1898) -- valid -- águila cueruda, rough eagle ray
  Pteromylaeus bovinus (E. Geoffroy Saint-Hilaire, 1817) -- valid -- bull ray, duckbill
  Pteronotropis Fowler, 1935 -- valid -- flagfin shiners
  Pteronotropis euryzonus (Suttkus, 1955) -- valid -- Broadstripe Shiner
  Pteronotropis hubbsi (Bailey and Robison, 1978) -- valid -- Bluehead Shiner
  Pteronotropis hypselopterus (Günther, 1868) -- valid -- Sailfin Shiner
  Pteronotropis signipinnis (Bailey and Suttkus, 1952) -- valid -- Flagfin Shiner
  Pteronotropis welaka (Evermann and Kendall, 1898) -- valid -- Bluenose Shiner
  Pteropangasius Fowler, 1937 -- invalid
  Pteropelor Fowler, 1938 -- valid
  Pterycombus Fries, 1837 -- valid
  Pterygoplichthys Gill, 1858 -- valid
  Pterygoplichthys gibbiceps (Kner, 1854) -- invalid
  Pterygotrigla Waite, 1899 -- valid
  Ptychocheilus Agassiz, 1855 -- valid -- pikeminnows
  Ptychocheilus grandis (Ayres, 1854) -- valid -- Sacramento squawfish, Sacramento Pikeminnow
  Ptychocheilus lucius Girard, 1856 -- valid -- Colorado squawfish, carpa gigante del Colorado, Colorado Pikeminnow
  Ptychocheilus oregonensis (Richardson, 1836) -- valid -- méné-brochet du nord, northern squawfish, Northern Pikeminnow
  Ptychocheilus umpquae Snyder, 1908 -- valid -- Umpqua Pikeminnow
  Puck Pietsch, 1978 -- valid
  Puntioplites Smith, 1929 -- valid
  Puntioplites bulu (Bleeker, 1851) -- valid
  Puntioplites proctozystron (Bleeker, 1865) -- valid
  Puntioplites waandersi (Bleeker, 1858-59) -- valid
  Puntius Hamilton, 1822 -- valid -- spotted barbs
  Puntius arulius (Jerdon, 1849) -- valid -- longfin barb, Aruli barb, arulius barb
  Puntius binotatus (Valenciennes in Cuvier and Valenciennes, 1842) -- valid -- spotted barb
  Puntius conchonius (Hamilton, 1822) -- valid -- rosy barb
  Puntius cumingii (Günther, 1868) -- valid -- Cuming's barb
  Puntius eugrammus Silas, 1956 -- invalid
  Puntius everetti (Boulenger, 1894) -- valid -- clown barb
  Puntius fasciatus (Jerdon, 1849) -- valid -- banded barb
  Puntius filamentosus (Valenciennes in Cuvier and Valenciennes, 1844) -- valid -- black-spot barb, blackspot barb
  Puntius gelius (Hamilton, 1822) -- valid -- dwarf barb, golden dwarf barb
  Puntius guganio (Hamilton, 1822) -- valid -- glass-barb
  Puntius hexazona (Weber and de Beaufort, 1912) -- valid
  Puntius lateristriga (Valenciennes in Cuvier and Valenciennes, 1842) -- valid -- spanner barb
  Puntius nigrofasciatus (Günther, 1868) -- valid -- black-ruby barb
  Puntius orphoides (Valenciennes in Cuvier and Valenciennes, 1842) -- valid
  Puntius pentazona (Boulenger, 1894) -- valid -- five-banded barb
  Puntius rhomboocellatus Koumans, 1940 -- valid
  Puntius semifasciolatus (Günther, 1868) -- valid -- green barb
  Puntius sophore (Hamilton, 1822) -- valid -- pool barb
  Puntius tetrazona (Bleeker, 1855) -- valid -- tiger barb
  Puntius ticto (Hamilton, 1822) -- valid -- two-spot barb
  Puntius titteya Deraniyagala, 1929 -- valid -- cherry barb
  Pusa Jordan and Gilbert, 1879 -- invalid
  Pygidianops Myers, 1944 -- valid
  Pygidium Meyen, 1835 -- invalid
  Pygocentrus Müller and Troschel, 1844 -- valid
  Pygocentrus cariba (Humboldt in Humboldt and Valenciennes, 1821) -- valid
  Pygocentrus dulcis Kner, 1860 -- invalid
  Pygocentrus melanurus Kner, 1860 -- invalid
  Pygocentrus niger (Jardine and Schomburgk in Schomburgk, 1841) -- invalid
  Pygocentrus nigricans (Spix and Agassiz, 1829) -- invalid
  Pygocentrus piraya (Cuvier, 1819) -- valid
  Pygocentrus stigmaterythraeus Fowler, 1911 -- invalid
  Pygoplites Fraser-Brunner, 1933 -- valid
  Pylodictis Rafinesque, 1819 -- valid -- flathead catfishes
  Pylodictis olivaris (Rafinesque, 1818) -- valid -- barbue à tête plate, Flathead Catfish, bagre piltonte
  Pyramodon Smith and Radcliffe in Radcliffe, 1913 -- valid
  Pyramodon ventralis Smith and Radcliffe in Radcliffe, 1913 -- valid -- dogtooth pearlfish
  Pyrrhulina Valenciennes in Cuvier and Valenciennes, 1846 -- valid
  Pyrrhulina brevis Steindachner, 1876 -- valid -- short pyrrhulina, short pyrrhulina
  Pyrrhulina filamentosa Valenciennes in Cuvier and Valenciennes, 1847 -- valid
  Pyrrhulina guttata Steindachner, 1876 -- invalid
  Pyrrhulina nattereri Steindachner, 1876 -- invalid
  Pyrrhulina nigrofasciata Meinken, 1952 -- invalid
  Pyrrhulina vittata Regan, 1912 -- valid -- striped pyrrhulina, striped pyrrhulina
  Pythonichthys Poey, 1868 -- valid
  Pythonichthys asodes Rosenblatt and Rubinoff, 1972 -- valid -- Pacific mud eel, anguila de fango del Pacífico
  Pythonichthys macrurus (Regan, 1912) -- valid
  Pythonichthys microphthalmus (Regan, 1912) -- valid
  Pythonichthys sanguineus Poey, 1868 -- valid -- morena sanguínea
  Quitana Hubbs, 1934 -- invalid
  Rabaulichthys Allen, 1984 -- valid
  Rabdophorus Swainson, 1839 -- invalid
  Rabula Jordan and Davis, 1891 -- invalid
  Rabula acuta (Parr, 1930) -- invalid -- redface moray
  Rachovia Myers, 1927 -- valid
  Rachoviscus Myers, 1926 -- valid
  Rachoviscus crassiceps Myers, 1926 -- valid
  Rachoviscus graciliceps Weitzman and Cruz, 1981 -- valid
  Rachycentron Kaup, 1826 -- valid
  Raconda Gray, 1831 -- valid
  Radulinus Gilbert, 1890 -- valid
  Raiamas Jordan, 1919 -- valid
  Raiamas levequi Howes and Teugels, 1989 -- invalid
  Raiamas scarciensis Howes and Teugels, 1989 -- valid
  Rainfordia McCulloch, 1923 -- valid
  Raja africana Bloch and Schneider, 1801 -- invalid
  Raja aleutica Gilbert, 1896 -- invalid
  Raja asperrima Bloch and Schneider, 1801 -- invalid
  Raja clarkii Bigelow and Schroeder, 1958 -- invalid
  Raja flagellum Bloch and Schneider, 1801 -- invalid
  Raja flavirostris Philippi, 1893 -- invalid
  Raja fullonica Linnaeus, 1758 -- invalid -- shagreen ray, shagreen skate
  Raja garricki Bigelow and Schroeder, 1958 -- invalid
  Raja halavi Forsskċl, 1775 -- invalid
  Raja interrupta Gill and Townsend, 1897 -- invalid
  Raja kincaidi Garman, 1908 -- invalid -- sandpaper skate
  Raja lentiginosa (Bigelow and Schroeder, 1951) -- invalid -- speckled skate
  Raja rondeleti Bougis, 1959 -- valid
  Raja say Lesueur, 1817 -- invalid
  Raja scaphiops Norman, 1937 -- invalid
  Raja sephen Forsskċl, 1775 -- invalid
  Raja sephen uarnak Forsskċl, 1775 -- invalid
  Raja smirnovi Soldatov and Pavlenko, 1915 -- invalid
  Raja thouin Anonymous, 1798 -- invalid
  Raja thouiniana Shaw, 1804 -- invalid
  Raja torpedo Linnaeus, 1758 -- invalid
  Raja trachura Gilbert, 1892 -- invalid
  Ramnogaster arcuata (Jenyns, 1842) -- valid -- Jenyn's sprat
  Ramnogaster melanostoma (Eigenmann, 1907) -- valid -- Uruguay river sprat
  Randallichthys Anderson, Kami and Johnson, 1977 -- valid
  Raneya Robins, 1961 -- valid
  Raniceps Oken, 1817 -- valid
  Rasbora Bleeker, 1859 -- valid
  Rasbora borapetensis Smith, 1934 -- valid -- red-tailed rasbora
  Rasbora dorsiocellata Duncker, 1904 -- valid -- hi-spot rasbora
  Rasbora elegans Volz, 1903 -- valid -- elegant rasbora
  Rasbora espei Meinken, 1967 -- invalid -- espes rasbora
  Rasbora heteromorpha Duncker, 1904 -- invalid -- harlequin, red rasbora
  Rasbora heteromorpha espei Meinken, 1967 -- invalid
  Rasbora kalochroma (Bleeker, 1851) -- valid -- clown rasbora
  Rasbora leptosoma (Bleeker, 1855) -- valid
  Rasbora maculata Duncker, 1904 -- invalid -- dwarf rasbora
  Rasbora myersi Brittan, 1954 -- invalid -- rasbora
  Rasbora pauciperforata Weber and de Beaufort, 1916 -- valid -- red-striped rasbora
  Rasbora trilineata Steindachner, 1870 -- valid -- scissor-tailed rasbora
  Rasbora urophthalma Ahl, 1922 -- invalid
  Rastrineobola Fowler, 1936 -- valid
  Rastrineobola argentea (Pellegrin, 1904) -- valid
  Rastrinus Jordan and Evermann, 1896 -- valid
  Redigobius Herre, 1927 -- valid -- dualspot gobies
  Redigobius balteatops (Smith, 1959) -- invalid
  Regalecus Ascanius, 1772 -- valid -- oarfishes
  Reinhardtius Gill, 1861 -- valid
  Reinhardtius hippoglossoides (Walbaum, 1792) -- valid -- Greenland halibut, platija negra, Greenland turbot, Newfoundland turbot, turbot, greeenland halibut, flétan du Groenland, Greenland Halibut
  Relictus Hubbs and Miller, 1972 -- valid -- relict daces
  Relictus solitarius Hubbs and Miller, 1972 -- valid -- Relict Dace
  Remilegia Gill, 1862 -- invalid
  Remora Gill, 1862 -- valid
  Remorina Jordan and Evermann, 1896 -- valid
  Remoropsis Gill, 1863 -- invalid
  Repomucenus Whitley, 1931 -- valid
  Repomucenus calcaratus (Macleay, 1881) -- valid -- stinkfish
  Repomucenus sagitta (Pallas, 1770) -- invalid -- arrowheaded dragonet
  Reporhamphus ihi (Phillipps, 1932) -- invalid
  Retropinna Gill, 1862 -- valid
  Rhabdalestes Hoedeman, 1951 -- valid
  Rhabdamia Weber, 1909 -- valid
  Rhabdolichops Eigenmann and Allen, 1942 -- valid
  Rhabdosargus Fowler, 1933 -- valid
  Rhadinesthes Regan and Trewavas, 1929 -- valid
  Rhadinocentrus Regan, 1914 -- valid
  Rhamdella Eigenmann and Eigenmann, 1888 -- valid
  Rhamdia Bleeker, 1858 -- valid -- bagre de Rio
  Rhamdia barbata Meek, 1907 -- invalid -- chuchin
  Rhamdia oaxacae Meek, 1902 -- invalid -- bagre
  Rhamdia quelen (Quoy and Gaimard, 1824) -- valid
  Rhamphichthys Müller and Troschel, 1849 -- valid
  Rhamphichthys elegans Steindachner, 1880 -- invalid
  Rhamphocetichthys Paxton, 1989 -- valid
  Rhamphocottus Günther, 1874 -- valid
  Rhaphiodon Agassiz in Spix and Agassiz, 1829 -- valid
  Rhaphiodon vulpinus Agassiz in Spix and Agassiz, 1829 -- valid
  Rhechias Jordan, 1921 -- invalid
  Rhechias armiger Jordan, 1921 -- invalid
  Rhechias bullisi Smith and Kanazawa, 1977 -- invalid
  Rhechias vicinalis (Garman, 1899) -- invalid
  Rhegma Gilbert in Jordan and Evermann, 1900 -- invalid
  Rheocles Jordan and Hubbs in Jordan, 1919 -- valid
  Rheocloides Nichols and La Monte, 1931 -- invalid
  Rhina Bloch and Schneider, 1801 -- valid
  Rhina ancylostoma Bloch and Schneider, 1801 -- valid
  Rhina argentina Marini, 1930 -- invalid
  Rhina cyclostomus Swainson, 1839 -- invalid
  Rhincodon typus Smith, 1828 -- valid -- whale shark, dámero, requin baleine, tiburón ballena
  Rhinelepis Agassiz in Spix and Agassiz, 1829 -- valid
  Rhinichthys Agassiz, 1849 -- valid -- riffle daces
  Rhinichthys atratulus (Hermann, 1804) -- valid -- Blacknose Dace, naseux noir de l'est, Eastern Blacknose Dace, naseux noir
  Rhinichthys atratulus atratulus (Hermann, 1804) -- invalid -- Eastern Blacknose Dace
  Rhinichthys atratulus meleagris Agassiz, 1854 -- invalid
  Rhinichthys atratulus obtusus Agassiz, 1854 -- invalid
  Rhinichthys bowersi Goldsborough and Clark, 1908 -- invalid -- cheat dace, Cheat minnow
  Rhinichthys cataractae (Valenciennes in Cuvier and Valenciennes, 1842) -- valid -- Longnose Dace, carpita rinconera, naseux des rapides
  Rhinichthys cobitis (Girard, 1856) -- invalid -- loach minnow, carpita locha, loach dace
  Rhinichthys deaconi Miller, 1984 -- valid -- Las Vegas Dace
  Rhinichthys evermanni Snyder, 1908 -- valid -- Umpqua Dace
  Rhinichthys falcatus (Eigenmann and Eigenmann, 1893) -- valid -- naseux léopard, Leopard Dace
  Rhinichthys osculus (Girard, 1856) -- valid -- naseux moucheté, Speckled Dace, carpita pinta
  Rhinichthys osculus lethoporus Hubbs and Miller, 1972 -- valid -- Independence Valley Speckled Dace
  Rhinichthys osculus oligoporus Hubbs and Miller, 1972 -- valid -- Clover Valley Speckled Dace
  Rhinichthys osculus thermalis (Hubbs and Kuhne, 1937) -- valid -- Kendall Warm Springs Dace
  Rhinichthys umatilla (Gilbert and Evermann, 1894) -- valid -- naseux d'Umatilla, Umatilla Dace
  Rhiniodon Smith, 1828 -- invalid
  Rhiniodon typus Smith, 1828 -- invalid -- whale shark
  Rhinobatos albomaculatus (Norman, 1930) -- valid
  Rhinobatos annandalei (Norman, 1926) -- valid
  Rhinobatos annulatus (Müller and Henle, 1841) -- valid
  Rhinobatos batillum Whitley, 1939 -- valid
  Rhinobatos blochii (Müller and Henle, 1841) -- valid
  Rhinobatos cemiculus (E. Geoffroy Saint-Hilaire, 1817) -- valid
  Rhinobatos dumerilii (Castelnau, 1873) -- valid
  Rhinobatos formosensis (Norman, 1926) -- valid
  Rhinobatos glaucostigma (Jordan and Gilbert, 1883) -- valid -- guitarra punteada, speckled guitarfish
  Rhinobatos granulatus (Cuvier, 1829) -- valid
  Rhinobatos halavi (Forsskċl, 1775) -- valid
  Rhinobatos holcorhynchus (Norman, 1922) -- valid
  Rhinobatos hynnicephalus (Richardson, 1846) -- valid
  Rhinobatos irvinei (Norman, 1931) -- valid
  Rhinobatos lentiginosus Garman, 1880 -- valid -- guitarra diablito, Atlantic guitarfish
  Rhinobatos leucorhynchus (Günther, 1867) -- valid -- whitesnout guitarfish, guitarra trompa blanca
  Rhinobatos leucospilus (Norman, 1926) -- valid
  Rhinobatos lionotus (Norman, 1926) -- valid
  Rhinobatos obtusus (Müller and Henle, 1841) -- valid
  Rhinobatos ocellatus (Norman, 1926) -- valid
  Rhinobatos percellens (Walbaum, 1792) -- valid -- fiddlefish, southern guitarfish, guitarfish, guitarra
  Rhinobatos planiceps Garman, 1880 -- valid
  Rhinobatos productus (Ayres, 1854) -- valid -- guitarra viola, shovelnose guitarfish
  Rhinobatos punctifer Compagno and Randall, 1987 -- valid
  Rhinobatos rhinobatos (Linnaeus, 1758) -- valid -- common Mediterranean guitarfish, guitarfish
  Rhinobatos schlegelii (Müller and Henle, 1841) -- valid
  Rhinobatos thouin (Anonymous, 1798) -- valid
  Rhinobatos typus Anonymous [Bennett], 1830 -- valid
  Rhinochimaera africana Compagno, Stehmann and Ebert, 1990 -- valid
  Rhinochimaera atlantica Holt and Byrne, 1909 -- valid -- knifenose chimaera, knife-nosed chimaera
  Rhinochimaera pacifica (Mitsukuri, 1895) -- valid
  Rhinomuraena Garman, 1888 -- valid
  Rhinomuraena ambonensis Barbour, 1908 -- invalid
  Rhinomuraena quaesita Garman, 1888 -- valid
  Rhinonemus Gill, 1863 -- invalid
  Rhinopias Gill, 1905 -- valid
  Rhinoptera Cuvier, 1829 -- valid -- cownosed rays
  Rhinoptera bonasus (Mitchill, 1815) -- valid -- gavilán cubanito, cownose ray, cara de vaca
  Rhinoptera brasiliensis Müller, 1836 -- valid -- Brazilian cow-nosed ray
  Rhinoptera javanica Müller and Henle, 1841 -- valid
  Rhinoptera marginata (E. Geoffroy Saint-Hilaire, 1817) -- valid
  Rhinoptera neglecta Ogilby, 1912 -- valid
  Rhinoptera peli Bleeker, 1863 -- valid
  Rhinoptera steindachneri Evermann and Jenkins, 1891 -- valid -- gavilán dorado, golden cownose ray
  Rhinoraja Ishiyama, 1952 -- valid -- jointnose skates
  Rhinosardinia Eigenmann, 1912 -- valid
  Rhinosardinia amazonica (Steindachner, 1879) -- valid -- Amazon spinejaw sprat
  Rhinosardinia bahiensis (Steindachner, 1879) -- valid -- Bahia sprat
  Rhinoscymnus Gill, 1865 -- invalid
  Rhinotriacis henlei Gill, 1863 -- invalid
  Rhizoprionodon acutus (Rüppell, 1837) -- valid -- milk shark
  Rhizoprionodon lalandii (Müller and Henle, 1839) -- valid -- Brazilian sharpnose shark
  Rhizoprionodon longurio (Jordan and Gilbert, 1882) -- valid -- cazón bironche, Pacific sharpnose shark
  Rhizoprionodon oligolinx Springer, 1964 -- valid -- grey sharpnose shark
  Rhizoprionodon porosus (Poey, 1861) -- valid -- cazón antillano, Caribbean sharpnose shark, cazón de ley
  Rhizoprionodon taylori (Ogilby, 1915) -- valid -- Australian sharpnose shark
  Rhizoprionodon terraenovae (Richardson, 1836) -- valid -- cazón de ley, Atlantic sharpnose shark, cazón de playa
  Rhizosomichthys Miles, 1943 -- valid
  Rhoadsia Fowler, 1911 -- valid
  Rhoadsia altipinna Fowler, 1911 -- valid
  Rhodeus Agassiz, 1832 -- valid -- bitterling
  Rhodeus amarus (Bloch, 1782) -- valid
  Rhodeus sericeus (Pallas, 1776) -- valid -- bitterling
  Rhodeus sericeus amarus (Bloch, 1782) -- invalid
  Rhodeus sericeus sericeus (Pallas, 1776) -- invalid
  Rhodichthys Collett, 1879 -- valid
  Rhombocyttus Gill, 1893 -- invalid
  Rhomboidichthys Bleeker, 1856 -- invalid
  Rhomboplites Gill, 1862 -- valid
  Rhombosolea Günther, 1862 -- valid
  Rhombosolea leporina Günther, 1862 -- valid -- New Zealand yellowbelly flounder
  Rhombosolea monopus Günther, 1862 -- invalid
  Rhombosolea retiaria Hutton, 1874 -- valid -- new zealand black flounder
  Rhombosolea tapirina Günther, 1862 -- valid -- New Zealand greenback flounder, greenback flounder
  Rhynchactis Regan, 1925 -- valid
  Rhynchobatus djiddensis (Forsskċl, 1775) -- valid -- spotted guitarfish
  Rhynchobatus luebberti Ehrenbaum, 1915 -- valid
  Rhynchobdella Bloch and Schneider, 1801 -- invalid
  Rhynchoconger Jordan and Hubbs, 1925 -- valid
  Rhynchoconger brachuata Chu and Chen, 1958 -- invalid
  Rhynchoconger brevirostris Chen and Weng, 1967 -- invalid
  Rhynchoconger ectenurus (Jordan and Richardson, 1909) -- valid
  Rhynchoconger flavus (Goode and Bean, 1896) -- valid -- yellow conger, congrio amarillo
  Rhynchoconger gracilior (Ginsburg, 1951) -- valid -- congrina filamentosa, whiptail conger, congrio grácil
  Rhynchoconger guppyi (Norman, 1925) -- valid
  Rhynchoconger nitens (Jordan and Bollman, 1890) -- valid -- needletail conger, congrio estilete
  Rhynchoconger squaliceps (Alcock, 1894) -- valid
  Rhynchoconger trewavasae Ben-Tuvia, 1993 -- valid
  Rhynchohyalus Barnard, 1925 -- valid
  Rhytejulis Fowler and Bean, 1928 -- invalid
  Rhytiodus Kner, 1858 -- valid
  Rhytiodus microlepis Kner, 1858 -- valid
  Richardsonius Girard, 1856 -- valid -- redside shiners
  Richardsonius balteatus (Richardson, 1836) -- valid -- méné rose, Redside Shiner
  Richardsonius egregius (Girard, 1858) -- valid -- Lahontan Redside, Lahontan shiner
  Ricuzenius Jordan and Starks, 1904 -- valid
  Riekertia Smith, 1952 -- valid
  Rineloricaria Bleeker, 1862 -- valid
  Rineloricaria fallax (Steindachner, 1915) -- valid -- whiptailed loricaria
  Rineloricaria microlepidogaster (Regan, 1904) -- valid
  Rineloricaria parva (Boulenger, 1895) -- valid -- whiptail loricaria
  Rinoctes Parr, 1952 -- valid
  Rita Bleeker, 1854 -- valid
  Rita rita (Hamilton, 1822) -- valid
  Rivulus Poey, 1860 -- valid -- rivulines
  Roa Jordan, 1923 -- valid
  Robia Pietsch, 1979 -- valid
  Robinsia Böhlke and Smith, 1967 -- valid
  Robinsia catherinae Böhlke and Smith, 1967 -- valid
  Roccus Mitchill, 1814 -- invalid
  Roeboides Günther, 1864 -- valid
  Roeboides caucae Eigenmann, 1922 -- invalid
  Roeboides guatemalensis (Günther, 1864) -- valid
  Roeboides microlepis (Reinhardt, 1851) -- valid
  Roeboides salvadoris Hildebrand, 1925 -- invalid
  Rogadius Jordan and Richardson, 1908 -- valid
  Rohita hasseltii Valenciennes in Cuvier and Valenciennes, 1842 -- invalid
  Rohtee Sykes, 1839 -- valid
  Rohtee ogilbii Sykes, 1839 -- valid
  Roloffia Clausen, 1966 -- invalid
  Roloffia bertholdi (Roloff, 1965) -- invalid
  Roloffia brueningi Roloff, 1971 -- invalid
  Roloffia chaytori Roloff, 1971 -- invalid
  Roloffia liberiensis (Boulenger, 1908) -- invalid
  Romanichthys Dumitrescu, Banarescu and Stoica, 1957 -- valid
  Ronchifex Gistel, 1848 -- invalid
  Rondeletia Goode and Bean, 1895 -- valid
  Rondeletia bicolor Goode and Bean, 1895 -- valid
  Rondeletia loricata Abe and Hotta, 1963 -- valid
  Rooseveltiella nattereri (Kner, 1858) -- invalid
  Rosenblattia Mead and De Falla, 1965 -- valid
  Rouleina Jordan, 1923 -- valid
  Rouleina attrita (Vaillant, 1888) -- valid -- softskin smoothhead
  Ruscarius Jordan and Starks, 1895 -- valid
  Rusichthys Winterbottom, 1979 -- valid
  Rutilus Rafinesque, 1820 -- valid
  Rutilus aula (Bonaparte, 1841) -- invalid -- Triotto, Adriatic roach
  Rutilus basak (Heckel, 1843) -- invalid -- plotica, Neretva roach
  Rutilus erythrophthalmus Zerunian, 1982 -- invalid
  Rutilus frisii (Nordmann, 1840) -- valid -- Vyrezub, kutum
  Rutilus heckelii (Nordmann, 1840) -- valid -- taran
  Rutilus karamani Vladykov and Petit, 1930 -- invalid
  Rutilus lusitanicus (Collares-Pereira, 1980) -- invalid
  Rutilus macrolepidotus (Steindachner, 1866) -- invalid
  Rutilus meidingerii (Heckel, 1851) -- invalid
  Rutilus ohridanus (Karaman, 1924) -- invalid
  Rutilus pigus (Lacepède, 1803) -- valid -- pigo
  Rutilus prespensis (Karaman, 1924) -- invalid -- Prespa roach
  Rutilus rubilio (Bonaparte, 1837) -- invalid
  Rutilus rutilus (Linnaeus, 1758) -- valid -- European roach, roach
  Rutilus wyresuba Gratzianov, 1907 -- invalid
  Rutilus ylikiensis Economidis, 1991 -- invalid -- Yliki roach
  Rypticus Cuvier, 1829 -- valid -- soapfishes
  Saccodon Kner, 1863 -- valid
  Saccodon wagneri Kner, 1863 -- valid
  Saccogaster Alcock, 1889 -- valid
  Saccopharynx Mitchill, 1824 -- valid
  Saccopharynx ampullaceus (Harwood, 1827) -- valid -- pelican-fish
  Saccopharynx harrisoni Beebe, 1932 -- valid
  Saccopharynx hjorti Bertin, 1938 -- valid
  Saccopharynx lavenbergi Nielsen and Bertelsen, 1985 -- valid
  Saccopharynx paucovertebratis Nielsen and Bertelsen, 1985 -- valid
  Saccopharynx ramosus Nielsen and Bertelsen, 1985 -- valid
  Saccopharynx schmidti Bertin, 1934 -- valid
  Saccopharynx trilobatus Nielsen and Bertelsen, 1985 -- valid
  Sacura Jordan and Richardson, 1910 -- valid
  Sagamichthys Parr, 1953 -- valid
  Salangichthys Bleeker, 1860 -- valid
  Salanx Cuvier, 1816 -- valid
  Salilota Günther, 1887 -- valid
  Salmo Linnaeus, 1758 -- valid -- Atlantic salmon
  Salmo anostomus Linnaeus, 1758 -- invalid
  Salmo bimaculatus Linnaeus, 1758 -- invalid
  Salmo fasciatus Bloch, 1794 -- invalid
  Salmo gasteropelecus Pallas, 1770 -- invalid
  Salmo pectoralis Kner, 1858 -- invalid
  Salmo rhombeus Linnaeus, 1766 -- invalid
  Salmo timbure Natterer in Kner, 1859 -- invalid
  Salmostoma Swainson, 1839 -- valid
  Salmostoma bacaila (Hamilton, 1822) -- valid
  Salmostoma balookee (Sykes, 1839) -- valid
  Salmostoma boopis (Day, 1874) -- valid
  Salmostoma horai (Silas, 1951) -- valid
  Salmostoma kardahiensis Reddiah, 1980 -- invalid
  Salmostoma longicauda Srithar and Jayaram, 1990 -- invalid
  Salmostoma novacula (Valenciennes in Jacquemont, 1840) -- valid
  Salmostoma punjabensis (Day, 1872) -- valid
  Salmostoma sardinella (Valenciennes in Cuvier and Valenciennes, 1844) -- valid
  Salmostoma sladoni (Day, 1870) -- valid
  Salmostoma untrahi (Day, 1869) -- valid
  Saloptia Smith, 1964 -- valid
  Salvelinus Richardson, 1836 -- valid -- chars
  Samaris Gray, 1831 -- valid
  Samaris cristatus Gray, 1831 -- valid -- crested flounder
  Samaris delagoensis von Bonde, 1925 -- invalid
  Samaris inornata Lloyd, 1909 -- invalid
  Samaris macrolepis Norman, 1927 -- valid
  Samaris maculatus Günther, 1880 -- invalid
  Samariscus Gilbert, 1905 -- valid
  Samariscus asanoi Ochiai & Amaoka, 1962 -- valid
  Samariscus corallinus Gilbert, 1905 -- valid
  Samariscus fasciatus Fowler, 1934 -- invalid
  Samariscus huysmani Weber, 1913 -- valid
  Samariscus inornatus (Lloyd, 1909) -- valid
  Samariscus japonicus Kamohara, 1936 -- valid
  Samariscus latus Matsubara & Takamuki, 1951 -- valid
  Samariscus longimanus Norman, 1927 -- valid -- longfinned flounder
  Samariscus luzonensis Fowler, 1934 -- valid
  Samariscus macrognathus Fowler, 1934 -- valid
  Samariscus maculatus (Günther, 1880) -- valid
  Samariscus nielseni Quéro, Hensley & Maugé, 1989 -- valid
  Samariscus sunieri Weber & de Beaufort, 1929 -- valid
  Samariscus triocellatus Woods in Gosline & Brock, 1960 -- valid
  Samariscus xenicus Ochiai & Amaoka, 1962 -- valid
  Sanopus Smith, 1952 -- valid
  Sarcocheilichthys Bleeker, 1860 -- valid
  Sarcocheilichthys davidi (Sauvage, 1878) -- valid
  Sarcocheilichthys kiangsiensis Nichols, 1930 -- valid
  Sarcocheilichthys lacustris (Dybowski, 1872) -- valid
  Sarcocheilichthys nigripinnis (Günther, 1873) -- valid
  Sarcocheilichthys parvus Nichols, 1930 -- valid
  Sarcocheilichthys soldatovi (Berg, 1914) -- valid
  Sarcocheilichthys variegatus (Temminck and Schlegel, 1846) -- valid
  Sarcoglanis Myers and Weitzman, 1966 -- valid
  Sardina Antipa, 1904 -- valid
  Sardina pilchardus (Walbaum, 1792) -- valid -- true sardine, European pilchard
  Sardinella Valenciennes in Cuvier and Valenciennes, 1847 -- valid
  Sardinella albella (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- white sardinella, sardinela blanca, sardinella blanche
  Sardinella anchovia Valenciennes in Cuvier and Valenciennes, 1847 -- invalid
  Sardinella atricauda (Günther, 1868) -- valid -- Bleeker's blacktip sardinella
  Sardinella aurita Valenciennes in Cuvier and Valenciennes, 1847 -- valid -- sardina de España, sardina española, round sardinella, Spanish sardine
  Sardinella brachysoma Bleeker, 1852 -- valid -- deepbody sardinella
  Sardinella brasiliensis (Steindachner, 1879) -- invalid -- orangespot sardine, Brazilian sardinella
  Sardinella fijiense (Fowler and Bean, 1923) -- valid -- Fiji sardinella
  Sardinella fimbriata (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- fringescale sardine, fringescale sardinella
  Sardinella gibbosa (Bleeker, 1849) -- valid -- goldstripe sardinella, sardinelle dorée, sardinela dorada
  Sardinella hualiensis (Chu and Tsai, 1958) -- valid -- Taiwan sardinella
  Sardinella janeiro (Eigenmann, 1894) -- valid -- sardina orejinaranja, Brazilian sardinella, orangespot sardine
  Sardinella jonesi Lazarus, 1983 -- valid
  Sardinella jussieui (Valenciennes in Cuvier and Valenciennes, 1847) -- invalid -- Mauritian sardinella
  Sardinella lemuru Bleeker, 1853 -- valid -- Bali sardinella
  Sardinella longiceps Valenciennes in Cuvier and Valenciennes, 1847 -- valid -- Indian oil sardine
  Sardinella maderensis (Lowe, 1838) -- valid -- Madeiran sardinella
  Sardinella marquesensis Berry and Whitehead, 1968 -- valid -- Marquesan sardine, Marquesan sardinella
  Sardinella melanura (Cuvier, 1829) -- valid -- sardinelle queue noire, blacktip sardinella, sardinela rabo negro
  Sardinella neglecta Wongratana, 1983 -- valid -- east African sardinella
  Sardinella richardsoni Wongratana, 1983 -- valid -- Richardson's sardinella
  Sardinella rouxi (Poll, 1953) -- valid -- yellowtail sardinella
  Sardinella sindensis (Day, 1878) -- valid -- Sind sardinella
  Sardinella tawilis (Herre, 1927) -- valid -- freshwater sardinella
  Sardinella zunasi (Bleeker, 1854) -- valid -- Japanese sardinella
  Sardinops Hubbs, 1929 -- valid
  Sardinops caeruleus (Girard, 1854) -- invalid -- California pilchard, California sardine, Pacific American sardine, Pacific sardine
  Sardinops melanostictus (Temminck and Schlegel, 1846) -- valid -- Japanese pilchard
  Sardinops neopilchardus (Steindachner, 1879) -- valid -- Australian pilchard
  Sardinops ocellatus (Pappe, 1853) -- valid -- southern African pilchard
  Sardinops sagax (Jenyns, 1842) -- valid -- sardina monterrey, Pacific sardine, South American pilchard
  Sardinops sirm (Walbaum, 1792) -- invalid
  Sarothrodus nigrirostris Gill, 1862 -- invalid
  Sarritor Cramer in Jordan and Evermann, 1896 -- valid
  Satan Hubbs and Bailey, 1947 -- valid -- widemouth blindcats
  Satan eurystomus Hubbs and Bailey, 1947 -- valid -- Widemouth Blindcat
  Satyrichthys Kaup, 1873 -- valid
  Saurenchelys Peters, 1864 -- valid
  Saurenchelys cancrivora Peters, 1864 -- valid
  Saurenchelys cognita Smith, 1989 -- valid -- longface eel, serpentina noble
  Saurenchelys elongatum (Kotthaus, 1968) -- invalid
  Saurenchelys fierasfer (Jordan and Snyder, 1901) -- valid -- blacktail duckbill
  Saurenchelys finitimus (Whitley, 1935) -- valid
  Saurenchelys halimyon Van Utrecht, 1983 -- valid
  Saurenchelys stylura (Lea, 1913) -- valid
  Sauromuraenesox Alcock, 1889 -- valid
  Sauromuraenesox vorax Alcock, 1889 -- valid
  Sauvagella Bertin, 1940 -- valid
  Sauvagella madagascariensis (Sauvage, 1883) -- valid -- Madagascar round herring
  Saxilaga Scott, 1936 -- invalid
  Scaevius Whitley, 1947 -- valid
  Scardinius Bonaparte, 1837 -- valid -- rudds
  Scardinius erythrophthalmus (Linnaeus, 1758) -- valid -- European rudd, redeye roach, redfin, pearl roach, rudd
  Scarichthys Bleeker, 1859 -- invalid
  Scaridea Jenkins, 1903 -- invalid
  Scarops Schultz, 1958 -- invalid
  Scartomyzon Fowler, 1913 -- invalid -- jumprocks
  Scartomyzon ariommus (Robins and Raney, 1956) -- invalid -- bigeye jumprock
  Scartomyzon cervinus (Cope, 1868) -- invalid -- black jumprock
  Scartomyzon robustus (Cope, 1870) -- invalid
  Scarus Bleeker, 1849 -- invalid
  Scarus bataviensis Bleeker, 1857 -- invalid
  Scarus cyanotaenia Bleeker, 1854 -- invalid
  Scaturiginichthys Ivantsoff, Unmack, Saeed and Crowley, 1991 -- valid
  Schilbe Oken, 1817 -- valid
  Schilbe mystus (Linnaeus, 1758) -- valid
  Schismorhynchus McCosker, 1970 -- valid
  Schismorhynchus labialis (Seale, 1917) -- valid
  Schistura McClelland, 1838 -- valid
  Schistura afasciata Mirza and Banarescu in Mirza, Nalbant and Banarescu, 1981 -- valid
  Schistura alticrista Kottelat, 1990 -- valid
  Schistura geisleri Kottelat, 1990 -- valid
  Schistura magnifluvis Kottelat, 1990 -- valid
  Schistura notostigma (Bleeker, 1863) -- valid -- spotted loach, spotback loach
  Schistura robertsi Kottelat, 1990 -- valid
  Schistura similis Kottelat, 1990 -- valid
  Schistura zonata McClelland, 1839 -- valid
  Schizodon Agassiz in Spix and Agassiz, 1829 -- valid
  Schizodon nasutus Kner, 1858 -- valid
  Schizodon trimaculatus Kner, 1858 -- invalid
  Schizothorax Heckel, 1838 -- valid
  Schizothorax affinis Kessler, 1872 -- invalid
  Schizothorax cryptolepis Fu and Ye, 1984 -- valid
  Schizothorax intermedius McClelland, 1842 -- invalid
  Schizothorax kumaonensis Menon, 1971 -- valid
  Schizothorax oligolepis Huang, 1985 -- valid
  Schroederichthys Springer, 1966 -- valid -- narrowtail cat sharks
  Schroederichthys bivius (Müller and Henle, 1838) -- valid -- narrowmouthed catshark
  Schroederichthys chilensis (Guichenot, 1848) -- valid -- redspotted catshark
  Schroederichthys maculatus Springer, 1966 -- valid -- narrowtail catshark, narrowtail cat shark
  Schroederichthys tenuis Springer, 1966 -- valid -- slender catshark, slender cat shark
  Schultzea Woods, 1958 -- valid
  Schultzidia Gosline, 1951 -- valid
  Schultzidia johnstonensis (Schultz and Woods, 1949) -- valid
  Sciadonus Garman, 1899 -- valid
  Sciaena Linnaeus, 1758 -- valid -- black drums, black drums
  Sciaena punctata Bloch, 1792 -- invalid
  Sciaenidae -- valid -- croakers, drums, roncadores, corbs, courbines, maigres, ombrines, corvinas y berrugatas, drums and croakers, tambours, coakers
  Sciaenops Gill, 1863 -- valid -- red drums
  Sclerocottus Fischer, 1885 -- invalid
  Scleronema Eigenmann, 1917 -- valid
  Scleropages Günther, 1864 -- valid
  Scleropages formosus (Müller and Schlegel, 1844) -- valid -- Asian bonytongue, Malayan bonytongue
  Scleropages jardinii (Saville-Kent, 1892) -- valid -- Australian bonytongue, northern barramundi
  Scleropages leichardti Günther, 1864 -- valid -- Dawson River salmon, saratoga, spotted barramundi, spotted bonytongue
  Scolichthys Rosen, 1967 -- valid
  Scoliodon Müller and Henle, 1837 -- valid -- spadenose sharks
  Scoliodon affinis Ogilby, 1912 -- invalid
  Scoliodon ceylonensis Setna and Sarangdhar, 1946 -- invalid
  Scoliodon intermedius Garman, 1913 -- invalid
  Scoliodon jordani Ogilby, 1908 -- invalid
  Scoliodon laticaudus Müller and Henle, 1838 -- valid -- spadenose shark
  Scoliodon longmani Ogilby, 1912 -- invalid
  Scoliodon longurio (Jordan and Gilbert, 1882) -- invalid
  Scoliodon palasoora (Bleeker, 1853) -- invalid
  Scoliodon terraenovae (Richardson, 1836) -- invalid
  Scoliodon vagatus Garman, 1913 -- invalid
  Scoliodon walbeehmi (Bleeker, 1856) -- invalid
  Scoloplax Bailey and Baskin, 1976 -- valid
  Scolopsis Cuvier, 1814 -- valid
  Scomberesox Lacepède, 1803 -- valid -- sauries, skippers
  Scombrops Temminck and Schlegel, 1845 -- valid
  Scombrosphyraena Fourmanoir, 1970 -- invalid
  Scopelengys Alcock, 1890 -- valid
  Scopeloberyx Zugmayer, 1911 -- valid
  Scopeloberyx opisthopterus (Parr, 1933) -- valid
  Scopeloberyx robustus (Günther, 1887) -- valid
  Scopelogadus Vaillant, 1888 -- valid
  Scopelogadus beanii (Günther, 1887) -- valid
  Scopelogadus mizolepis (Günther, 1878) -- valid
  Scopelopsis Brauer, 1906 -- valid
  Scopelus dumerilii Bleeker, 1856 -- invalid
  Scopelus kroeyeri Malm, 1861 -- invalid
  Scopelus kroyeri Malm, 1861 -- invalid
  Scophthalmus Rafinesque, 1810 -- valid
  Scophthalmus aquosus (Mitchill, 1815) -- valid -- windowpane, brill, sand dab, spotted flounder, turbot de sable, Windowpane
  Scophthalmus maximus (Linnaeus, 1758) -- valid -- turbot
  Scorpaena Linnaeus, 1758 -- valid -- scorpionfishes
  Scorpaenichthys Bleeker, 1856 -- invalid
  Scorpaenopsis Heckel, 1837 -- valid
  Scorpaenopsis gilchristi (Smith, 1957) -- valid
  Scorpichthes Bonaparte, 1846 -- invalid
  Scuticaria Jordan and Snyder, 1901 -- valid
  Scuticaria okinawae (Jordan and Snyder, 1901) -- valid
  Scuticaria tigrina (Lesson, 1828) -- valid -- tiger reef eel, morena atigrada
  Scuticaria unicolor Seale, 1917 -- invalid
  Scyliorhinus boa Goode and Bean, 1896 -- valid -- boa catshark, boa cat shark, gatica
  Scyliorhinus canicula (Linnaeus, 1758) -- valid -- small-spotted catshark
  Scyliorhinus capensis (Müller and Henle, 1838) -- valid -- yellowspotted catshark
  Scyliorhinus cervigoni Maurin and Bonnet, 1970 -- valid -- west african catshark
  Scyliorhinus garmani (Fowler, 1934) -- valid -- brownspotted catshark
  Scyliorhinus haeckelii (Miranda-Ribeiro, 1907) -- valid -- freckled catshark, freckled cat shark
  Scyliorhinus hesperius Springer, 1966 -- valid -- whitesaddled catshark, white-saddled cat shark
  Scyliorhinus macrorhynchus Tanaka, 1909 -- invalid
  Scyliorhinus meadi Springer, 1966 -- valid -- blotched catshark, blotched cat shark
  Scyliorhinus melanostigma Norman, 1939 -- invalid
  Scyliorhinus platyrhynchus Tanaka, 1909 -- invalid
  Scyliorhinus retifer (Garman, 1881) -- valid -- alitán mallero, chain catshark, chain dogfish
  Scyliorhinus retifer besnardi Springer and Sadowsky, 1970 -- invalid
  Scyliorhinus rudis Pietschmann, 1908 -- invalid
  Scyliorhinus sibogae Weber, 1913 -- invalid
  Scyliorhinus silasi Talwar, 1974 -- invalid
  Scyliorhinus stellaris (Linnaeus, 1758) -- valid -- nursehound
  Scyliorhinus sufflans Regan, 1921 -- invalid
  Scyliorhinus torazame (Tanaka, 1908) -- valid -- cloudy catshark
  Scylliogaleus quecketti Boulenger, 1902 -- valid -- flapnose houndshark
  Scylliorhinus indicus Brauer, 1906 -- invalid
  Scylliorhinus microps Gilchrist, 1922 -- invalid
  Scylliorhinus profundorum Goode and Bean, 1896 -- invalid
  Scylliorhinus regani Gilchrist, 1922 -- invalid
  Scyllium Cuvier, 1816 -- invalid
  Scyllium anale Ogilby, 1885 -- invalid
  Scyllium artedii Risso, 1820 -- invalid
  Scyllium buergeri Müller and Henle, 1838 -- invalid
  Scyllium canescens Günther, 1878 -- invalid
  Scyllium capense Müller and Henle, 1838 -- invalid
  Scyllium chilense Guichenot, 1848 -- invalid
  Scyllium edwardsii Voigt, 1832 -- invalid
  Scyllium freycineti Quoy and Gaimard, 1824 -- invalid
  Scyllium hispidum Alcock, 1891 -- invalid
  Scyllium laticeps Duméril, 1853 -- invalid
  Scyllium laurussonii Saemundsson, 1922 -- invalid
  Scyllium leopardinum Müller and Henle, 1838 -- invalid
  Scyllium lima Richardson, 1843 -- invalid
  Scyllium maculatum Gray, 1830 -- invalid
  Scyllium malaisianus Lesson, 1831 -- invalid
  Scyllium marmoratum Anonymous [Bennett], 1830 -- invalid
  Scyllium natalense Regan, 1904 -- invalid
  Scyllium ornatum Gray, 1830 -- invalid
  Scyllium pantherinum Müller and Henle, 1838 -- invalid
  Scyllium pictum Müller and Henle, 1838 -- invalid
  Scyllium plagiosum Anonymous [Bennett], 1830 -- invalid
  Scyllium quagga Alcock, 1899 -- invalid
  Scyllium retiferum Garman, 1881 -- invalid
  Scyllium variegatum Müller and Henle, 1838 -- invalid
  Scyllium ventriosum Garman, 1880 -- invalid
  Scyllium vincenti Zietz, 1908 -- invalid
  Scymnodalatias Garrick, 1956 -- valid -- spineless velvet dogfish
  Scymnodalatias sherwoodi (Archey, 1921) -- valid -- Sherwood dogfish
  Scymnodon macracanthus (Regan, 1906) -- invalid -- largespine velvet dogfish
  Scymnodon obscurus (Vaillant, 1888) -- valid -- smallmouth velvet dogfish
  Scymnodon ringens Barbosa du Bocage and Brito Capello, 1864 -- valid -- knifetooth dogfish
  Scymnodon sherwoodi Archey, 1921 -- invalid
  Scymnodon squamulosus (Günther, 1877) -- valid -- velvet dogfish
  Scymnorhinus lichia (Bonaparte, 1846) -- invalid
  Scymnus Cuvier, 1816 -- invalid
  Scymnus brasiliensis Quoy and Gaimard, 1824 -- invalid
  Scymnus labordii Müller and Henle, 1839 -- invalid
  Scymnus mauritianus Quoy and Gaimard, 1830 -- invalid
  Searsia Parr, 1937 -- valid
  Searsioides Sazonov, 1977 -- valid
  Sebastapistes Gill in Streets, 1877 -- valid
  Sebastes Cuvier, 1829 -- valid -- rockfishes, rockcod, rosefishes
  Sebastodes Gill, 1881 -- invalid
  Sebastolobus Gill, 1881 -- valid
  Secutor Gistel, 1848 -- valid
  Selenaspis Bleeker, 1858 -- invalid
  Selenaspis herzbergii (Bloch, 1794) -- invalid
  Semaprochilodus Fowler, 1941 -- valid
  Semaprochilodus taeniurus (Valenciennes in Humboldt and Valenciennes, 1821) -- valid
  Semiplotus Bleeker, 1860 -- valid
  Semiplotus modestus Day, 1870 -- valid
  Semotilus Rafinesque, 1820 -- valid -- creek chubs
  Semotilus atromaculatus (Mitchill, 1818) -- valid -- Creek Chub, mulet à cornes
  Semotilus atromaculatus thoreauianus Jordan, 1877 -- invalid
  Semotilus corporalis (Mitchill, 1817) -- valid -- Fallfish, ouitouche
  Semotilus lumbee Snelson and Suttkus, 1978 -- valid -- Sandhills Chub
  Semotilus margarita (Cope, 1867) -- invalid -- pearl dace
  Semotilus thoreauianus Jordan, 1877 -- valid -- Dixie Chub
  Seriphus Ayres, 1860 -- valid
  Serraniculus Ginsburg, 1952 -- valid
  Serranocirrhitus Watanabe, 1949 -- valid
  Serranus Cuvier, 1816 -- valid
  Serranus inermis Valenciennes in Cuvier and Valenciennes, 1833 -- invalid
  Serranus striolatus Playfair in Playfair and Günther, 1867 -- invalid
  Serrasalmidae -- invalid
  Serrasalmo Dumeril, 1806 -- invalid
  Serrasalmo piranha Spix and Agassiz, 1829 -- invalid
  Serrasalmus Lacepède, 1803 -- valid
  Serrasalmus aesopus (Cope, 1972) -- invalid
  Serrasalmus humeralis Valenciennes in Cuvier and Valenciennes, 1850 -- valid
  Serrasalmus natterei (Kner, 1858) -- invalid -- redeye piranha
  Serrasalmus nattereri (Kner, 1858) -- invalid
  Serrasalmus niger Jardine and Schomburgk in Schomburgk, 1841 -- invalid
  Serrasalmus nigricans Spix and Agassiz, 1829 -- valid
  Serrasalmus paraense Steindachner, 1908 -- invalid
  Serrasalmus piraya Cuvier, 1819 -- invalid
  Serrasalmus rhombeus (Linnaeus, 1766) -- valid -- redeye piranha, spotted piranha
  Serrasalmus spilopleura Kner, 1858 -- valid -- dark-banded piranha, dark-banded piranha
  Serrivomer Gill and Ryder, 1883 -- valid
  Serrivomer beanii Gill and Ryder, 1883 -- valid -- sawtooth eel, stout sawpalate eel, shortnosed snipe eel, stout sawpalate
  Serrivomer bertini Bauchot, 1959 -- valid
  Serrivomer brevidentatus Roule and Bertin, 1929 -- invalid
  Serrivomer garmani Bertin, 1944 -- valid
  Serrivomer jesperseni Bauchot-Boutin, 1953 -- valid
  Serrivomer lanceolatoides (Schmidt, 1916) -- valid
  Serrivomer parabeani Bertin, 1940 -- invalid
  Serrivomer samoensis Bauchot, 1959 -- valid
  Serrivomer schmidti Bauchot-Boutin, 1953 -- valid
  Serrivomer sector Garman, 1899 -- valid
  Setarches Johnson, 1862 -- valid
  Setipinna Swainson, 1839 -- valid
  Setipinna breviceps (Cantor, 1849) -- valid -- shorthead hairfin anchovy
  Setipinna brevifilis (Valenciennes in Cuvier and Valenciennes, 1848) -- valid -- short-hairfin anchovy
  Setipinna melanochir (Bleeker, 1849) -- valid -- dusky-hairfin anchovy
  Setipinna paxtoni Wongratana, 1987 -- valid -- humpback hairfin anchovy
  Setipinna phasa (Hamilton, 1822) -- valid -- Gangetic hairfin anchovy
  Setipinna taty (Valenciennes in Cuvier and Valenciennes, 1848) -- valid -- scaly hairfin anchovy
  Setipinna tenuifilis (Valenciennes in Cuvier and Valenciennes, 1848) -- valid -- common hairfin anchovy
  Setipinna tenuifilis tenuifilis (Valenciennes in Cuvier and Valenciennes, 1848) -- invalid
  Setipinna wheeleri Wongratana, 1983 -- valid -- Burma hairfin anchovy
  Sewellia Hora, 1932 -- valid
  Sewellia lineolata (Valenciennes in Cuvier and Valenciennes, 1846) -- valid
  Sewellia marmorata Serov, 1996 -- valid
  Sicamugil Fowler, 1939 -- valid
  Siderea grisea (Lacepède, 1803) -- invalid -- geometric moray
  Siderea picta (Ahl, 1789) -- invalid
  Siderea prosopeion (Bleeker, 1853) -- invalid
  Siderea thyrsoidea (Richardson, 1845) -- invalid
  Sierrathrissa Thys van den Audenaerde, 1969 -- valid
  Sierrathrissa leonensis Thys van den Audenaerde, 1969 -- valid -- west African pygmy herring
  Sigmistes Rutter in Jordan and Evermann, 1898 -- valid
  Sillaginodes Gill, 1861 -- valid
  Sillaginopsis Gill, 1861 -- valid
  Sillago Cuvier, 1816 -- valid
  Silonia Swainson, 1838 -- valid
  Silonia childreni (Sykes, 1839) -- valid
  Silurichthys Bleeker, 1856 -- valid
  Silurichthys hasseltii Bleeker, 1858 -- valid
  Silurus Linnaeus, 1758 -- valid
  Silurus batrachus Linnaeus, 1758 -- invalid
  Silurus bicirrhis Valenciennes in Cuvier and Valenciennes, 1840 -- invalid
  Silurus bimaculatus Bloch, 1794 -- invalid
  Silurus costatus Linnaeus, 1758 -- invalid
  Silurus electricus Gmelin, 1789 -- invalid
  Silurus glanis Linnaeus, 1758 -- valid -- sheatfish
  Silurus mystus Linnaeus, 1758 -- invalid
  Silurus punctatus Rafinesque, 1818 -- invalid
  Silurus vittatus Bloch, 1794 -- invalid
  Simenchelys Gill in Goode and Bean, 1879 -- valid
  Simenchelys parasitica Gill in Goode and Bean, 1879 -- valid -- pugnose eel, slime eel, snubnosed eel
  Sinogastromyzon Fang, 1930 -- valid
  Sinogastromyzon chapaensis Mai, 1978 -- valid
  Sinogastromyzon rugocauda Mai, 1978 -- valid
  Sinogastromyzon wui Fang, 1930 -- valid
  Sinopangasius Chang and Wu, 1965 -- invalid
  Sio Moss, 1962 -- valid
  Siokunichthys Herald in Schultz, Herald, Lachner, Welander and Woods, 1953 -- valid
  Siphamia Weber, 1909 -- valid
  Siphateles Cope, 1883 -- valid -- tui chubs
  Sirembo Bleeker, 1858 -- valid
  Sisor Hamilton, 1822 -- valid
  Sisor rhabdophorus Hamilton, 1822 -- invalid
  Skiffia Meek, 1902 -- valid
  Skiffia bilineatus (Bean, 1887) -- valid
  Sladenia Regan, 1908 -- valid
  Smaris Cuvier, 1814 -- invalid
  Snyderichthys Miller, 1945 -- invalid -- leatherside chubs
  Snyderichthys copei (Jordan and Gilbert, 1881) -- invalid -- leatherside chub
  Snyderidia Gilbert, 1905 -- valid
  Soldatovia Taranetz, 1937 -- valid
  Solea Quensel, 1806 -- valid -- soles
  Solea azevia de Brito Capello, 1867 -- invalid
  Solea bleekeri Boulenger, 1898 -- invalid -- blackhand sole
  Solea fulvomarginata Gilchrist, 1904 -- invalid -- lemon sole
  Solea heterorhinos Bleeker, 1856 -- invalid -- tiger sole
  Solea impar Bennett, 1831 -- invalid -- Adriatic sole
  Solea lascaris (Risso, 1810) -- invalid
  Solea liturata Richardson, 1844 -- invalid
  Solea lutea (Risso, 1810) -- invalid -- solenette
  Solea melanosticta Peters, 1877 -- invalid
  Solea ovata Richardson, 1846 -- valid -- ovate sole
  Solea senegalensis Kaup, 1858 -- valid
  Solea solea (Linnaeus, 1758) -- valid
  Solea vulgaris Quensel, 1806 -- invalid -- common European sole, English sole, common sole, Dover sole, sole
  Solegnathus Swainson, 1839 -- valid
  Soleichthys Bleeker, 1860 -- valid
  Soleichthys heterorhinos (Bleeker, 1856) -- valid -- tiger sole
  Solenichthys Bleeker, 1865 -- invalid
  Solenophallus Herre, 1953 -- invalid
  Solenostomatichthys Bleeker, 1875 -- invalid
  Solenostomus Lacepède, 1803 -- valid
  Solivomer Miller, 1947 -- valid
  Somniosus Lesueur, 1818 -- valid -- sleeper sharks
  Somniosus bauchotae Quéro, 1975 -- invalid
  Somniosus longus (Tanaka, 1912) -- valid
  Somniosus microcephalus (Bloch and Schneider, 1801) -- valid -- Greenland shark, gray shark, ground shark, gurry shark, sleeper shark, laimargue
  Somniosus pacificus Bigelow and Schroeder, 1944 -- valid -- tiburón dormilón del Pacífico, Pacific sleeper shark
  Somniosus rostratus (Risso, 1827) -- valid -- little sleeper shark
  Somnolentus Swainson, 1838 -- invalid
  Sonoda Grey, 1959 -- valid
  Sorsogona Herre, 1934 -- valid
  Sorubim Agassiz in Spix and Agassiz, 1829 -- invalid
  Sorubim lima (Bloch and Schneider, 1801) -- valid -- shovel-nosed catfish
  Sorubimichthys Bleeker, 1862 -- valid
  Sparisoma cretense (Linnaeus, 1758) -- valid -- parrotfish
  Sparus Linnaeus, 1758 -- valid
  Sparus dentex Linnaeus, 1758 -- invalid
  Sparus gibbosus Rafinesque, 1810 -- invalid
  Sparus macrophthalmus Bloch, 1791 -- invalid
  Spectrunculus Jordan and Thompson, 1914 -- valid
  Speoplatyrhinus Cooper and Kuehne, 1974 -- valid -- Alabama cavefishes
  Sphagebranchus Bloch, 1795 -- invalid
  Sphagebranchus anguiformis (Peters, 1877) -- invalid
  Sphagebranchus catostomus Schneider and Forster in Bloch and Schneider, 1801 -- invalid
  Sphagebranchus imberbis Delaroche, 1809 -- invalid
  Sphagebranchus kendalli Gilbert, 1891 -- invalid
  Sphagebranchus ophioneus Evermann and Marsh, 1900 -- invalid
  Sphagemacrurus Fowler, 1925 -- valid
  Sphagomorus Cope, 1867 -- invalid
  Sphyraenops Gill in Poey, 1860 -- valid
  Sphyrna Rafinesque, 1810 -- valid -- bonnethead sharks, hammerhead sharks
  Sphyrna bigelowi Springer, 1944 -- invalid
  Sphyrna couardi Cadenat, 1951 -- valid -- whitefin hammerhead
  Sphyrna diplana Springer, 1941 -- invalid
  Sphyrna lewini (Griffith and Smith, 1834) -- valid -- cornuda común, scalloped hammerhead, cornuda
  Sphyrna ligo Fraser-Brunner, 1950 -- invalid
  Sphyrna media Springer, 1940 -- valid -- cornuda cuchara, scoophead
  Sphyrna mokarran (Rüppell, 1837) -- valid -- cornuda gigante, great hammerhead, cornuda de ley
  Sphyrna nana Sadowsky, 1965 -- invalid
  Sphyrna tiburo (Linnaeus, 1758) -- valid -- cornuda cabeza de pala, bonnethead, cornuda de corona, shovelhead
  Sphyrna tudes (Valenciennes, 1822) -- valid -- cornuda tudes, smalleye, smalleye hammerhead
  Sphyrna vespertina Springer, 1940 -- invalid
  Sphyrna zygaena (Linnaeus, 1758) -- valid -- cornuda prieta, smooth hammerhead, cabeza de martillo
  Spicara Rafinesque, 1810 -- valid
  Spinax Cuvier, 1816 -- invalid
  Spinax fabricii Reinhardt, 1825 -- invalid
  Spinax granulosus Günther, 1880 -- invalid
  Spinax hillianus Poey, 1861 -- invalid
  Spinax suckleyi Girard, 1855 -- invalid
  Spinivomer Gill and Ryder, 1883 -- invalid
  Spirinchus Jordan and Evermann, 1896 -- valid -- longfin smelts
  Spratelloides Bleeker, 1851 -- valid
  Spratelloides delicatulus (Bennett, 1832) -- valid -- delicate round herring, hareng rond, arenquillo fino
  Spratelloides gracilis (Temminck and Schlegel, 1846) -- valid -- silver stripe round herring, arenquillo de banda, hareng gracile
  Spratelloides lewisi Wongratana, 1983 -- valid -- Lewis' round herring
  Spratelloides malabaricus Day, 1873 -- invalid
  Spratelloides robustus Ogilby, 1897 -- valid -- fringe-scale round herring
  Spratellomorpha Bertin in Angel, Bertin and Guibé, 1946 -- valid
  Spratellomorpha bianalis (Bertin, 1940) -- valid -- two-finned round herring
  Sprattus Girgensohn, 1846 -- valid
  Sprattus antipodum (Hector, 1872) -- valid -- New Zealand sprat, New Zealand blueback sprat
  Sprattus fuegensis (Jenyns, 1842) -- valid -- Chilean sprat, chicken sprat
  Sprattus muelleri (Klunzinger, 1879) -- valid -- New Zealand sprat
  Sprattus novaehollandiae (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- Australian sprat
  Sprattus sprattus (Linnaeus, 1758) -- valid -- sprat, European sprat
  Sprattus sprattus balticus (Schneider, 1908) -- valid -- Baltic sprat
  Springeria Bigelow and Schroeder, 1951 -- invalid
  Springeria folirostris Bigelow and Schroeder, 1951 -- invalid
  Squaliolus alii Teng, 1959 -- invalid
  Squaliolus laticaudus Smith and Radcliffe in Smith, 1912 -- valid -- spined pigmy shark
  Squaliolus sarmenti Noronha, 1926 -- invalid
  Squalius delineatus Heckel, 1843 -- invalid
  Squalogadus Gilbert and Hubbs, 1916 -- valid
  Squalus Linnaeus, 1758 -- valid -- spiny dogfish, spurdogs
  Squalus acanthias Linnaeus, 1758 -- valid -- cazón espinoso común, piked dogfish, spiny dogfish, galludo espinoso, aiguillat commun, dogfish, grayfish, spurdog
  Squalus acronotus Poey, 1860 -- invalid
  Squalus acutipinnis Regan, 1908 -- valid
  Squalus africanus Gmelin, 1789 -- invalid
  Squalus americanus Gmelin, 1789 -- invalid
  Squalus arcticus Faber, 1829 -- invalid
  Squalus asper Merrett, 1973 -- invalid -- roughskin dogshark, roughskin spurdog, roughskin dogfish
  Squalus barbatus Gmelin, 1789 -- invalid
  Squalus caecchia Nardo, 1847 -- invalid
  Squalus caeruleus Blainville, 1816 -- invalid
  Squalus canicula Linnaeus, 1758 -- invalid
  Squalus canis Mitchill, 1815 -- invalid
  Squalus carcharias Linnaeus, 1758 -- invalid
  Squalus centrina Linnaeus, 1758 -- invalid
  Squalus cinereus Gmelin, 1789 -- invalid
  Squalus cubensis Howell Rivero, 1936 -- valid -- cazón aguijón cubano, Cuban dogfish, galludo cubano
  Squalus cuvier Péron and Lesueur in Lesueur, 1822 -- invalid
  Squalus edentulus Chiereghini in Ninni, 1872 -- invalid
  Squalus fasciatus Hermann, 1783 -- invalid
  Squalus fernandinus Molina, 1782 -- invalid
  Squalus ferox Risso, 1810 -- invalid
  Squalus fulgens Bennett, 1840 -- invalid
  Squalus galeus Linnaeus, 1758 -- invalid
  Squalus glaucus Linnaeus, 1758 -- invalid
  Squalus granulosus Bloch and Schneider, 1801 -- invalid
  Squalus griseus Bonnaterre, 1788 -- invalid
  Squalus indicus Gmelin, 1789 -- invalid
  Squalus isabella Bonnaterre, 1788 -- invalid
  Squalus japonicus Ishikawa, 1908 -- valid -- Japanese spurdog
  Squalus licha Bonnaterre, 1788 -- invalid
  Squalus longimanus Poey, 1861 -- invalid
  Squalus maculatus Bonnaterre, 1788 -- invalid
  Squalus maximus Gunnerus, 1765 -- invalid
  Squalus megalops (Macleay, 1881) -- valid -- shortnose spurdog
  Squalus melanurus Fourmanoir and Rivaton, 1979 -- valid -- blacktailed spurdog
  Squalus microcephalus Bloch and Schneider, 1801 -- invalid
  Squalus mitsukurii Jordan and Snyder in Jordan and Fowler, 1903 -- valid -- cazón aguijón galludo, shortspine dogfish, shortspine spurdog
  Squalus mustelus Linnaeus, 1758 -- invalid
  Squalus nasus Bonnaterre, 1788 -- invalid
  Squalus niger Gunnerus, 1763 -- invalid
  Squalus obscurus Lesueur, 1818 -- invalid
  Squalus obtusus Poey, 1861 -- invalid
  Squalus perlo Bonnaterre, 1788 -- invalid
  Squalus philippi Bloch and Schneider, 1801 -- invalid
  Squalus platyodon Poey, 1861 -- invalid
  Squalus plumbeus Nardo, 1827 -- invalid
  Squalus porosus Poey, 1861 -- invalid
  Squalus portusjacksoni Meyer, 1793 -- invalid
  Squalus prionurus Otto, 1821 -- invalid
  Squalus rancureli Fourmanoir and Rivaton, 1979 -- valid -- cyrano spurdog
  Squalus spallanzani Peron and Lesueur in Lesueur, 1822 -- invalid
  Squalus spinax Linnaeus, 1758 -- invalid
  Squalus spinosus Gmelin, 1789 -- invalid
  Squalus squamosus Bonnaterre, 1788 -- invalid
  Squalus squatina Linnaeus, 1758 -- invalid
  Squalus stellaris Linnaeus, 1758 -- invalid
  Squalus striatus Forster, 1844 -- invalid
  Squalus suckleyi (Girard, 1855) -- valid -- North Pacific spiny dogfish, spiny dogfish, spotted spiny dogfish
  Squalus tiburo Linnaeus, 1758 -- invalid
  Squalus uyato Rafinesque, 1810 -- invalid
  Squalus vacca Bloch and Schneider, 1801 -- invalid
  Squalus varius Seba, 1759 -- invalid
  Squalus vittatus Shaw in Shaw and Nodder, 1798 -- invalid
  Squalus vulpinus Bonnaterre, 1788 -- invalid
  Squatina aculeata Cuvier, 1829 -- valid -- sawback angelshark
  Squatina africana Regan, 1908 -- valid -- African angelshark
  Squatina argentina (Marini, 1930) -- valid -- Argentine angelfish
  Squatina armata (Philippi, 1887) -- invalid
  Squatina australis Regan, 1906 -- valid -- Australian angelfish
  Squatina californica Ayres, 1859 -- valid -- angelote del Pacífico, Pacific angel shark
  Squatina dumeril Lesueur, 1818 -- valid -- angelote del Atlántico, Atlantic angel shark, sand devil, Atlantic angelshark
  Squatina formosa Shen and Ting, 1972 -- valid -- Tiawan angelfish, Taiwan angelshark, Taiwan angelfish
  Squatina guggenheim Marini, 1936 -- invalid
  Squatina japonica Bleeker, 1858 -- valid -- Japanese angelfish, Japanese angelshark
  Squatina nebulosa Regan, 1906 -- valid -- clouded angelshark
  Squatina oculata Bonaparte, 1840 -- valid -- monk fish, smoothback angelshark
  Squatina punctata Marini, 1936 -- invalid
  Squatina squatina (Linnaeus, 1758) -- valid -- angelfish, angelshark, fiddle fish, angel shark
  Squatina tergocellata McCulloch, 1914 -- valid -- ornate angelshark
  Squatina tergocellatoides Chen, 1963 -- valid -- ocellated angelshark
  Squatina vulgaris Risso, 1810 -- invalid
  Stauroglanis de Pinna, 1989 -- valid
  Steatogenys Boulenger, 1898 -- valid
  Steatogenys elegans (Steindachner, 1880) -- valid
  Steeneichthys Allen and Randall, 1985 -- valid
  Stegophilus Reinhardt, 1859 -- valid
  Stegostoma Müller and Henle, 1837 -- valid
  Stegostoma fasciatum (Hermann, 1783) -- valid -- zebra shark
  Steindachneria Goode and Bean in Agassiz, 1888 -- valid
  Steindachnerina Fowler, 1906 -- valid
  Steindachnerina gracilis Vari and Williams Vari, 1989 -- valid
  Stelgidonotus Gilbert and Thompson, 1905 -- invalid
  Stelgistrops Hubbs, 1926 -- invalid
  Stelgistrum Jordan and Gilbert in Jordan and Evermann, 1898 -- valid
  Stellerina Cramer in Jordan and Evermann, 1896 -- valid
  Stellifer Oken, 1817 -- valid
  Stemonidium Gilbert, 1905 -- valid
  Stemonidium hypomelas Gilbert, 1905 -- valid
  Stenatherina Schultz, 1948 -- valid
  Stenobrachius Eigenmann and Eigenmann, 1890 -- valid
  Stenogobius lacrymosus (Peters, 1868) -- invalid
  Stenogobius ophthalmoporus (Bleeker, 1853) -- valid
  Stenolicmus de Pinna and Starnes, 1990 -- valid
  Stephanoberyx Gill, 1883 -- valid
  Stereolepis Ayres, 1859 -- valid
  Sternarchella Eigenmann in Eigenmann and Ward, 1905 -- valid
  Sternarchorhynchus Castelnau, 1855 -- valid
  Sternarchus Bloch and Schneider, 1801 -- invalid
  Sternarchus albifrons (Linnaeus, 1766) -- invalid
  Sternarchus maximilliani Castelnau, 1855 -- invalid
  Sternarchus virescens Valenciennes, 1842 -- invalid
  Sternoptyx Hermann, 1781 -- valid
  Sternopygus Müller and Troschel, 1849 -- valid
  Sternopygus carapo (Linnaeus, 1758) -- invalid
  Sternopygus carapus Günther, 1870 -- invalid
  Stethojulis Günther, 1861 -- valid
  Stevardia Gill, 1858 -- invalid
  Stevardia riisei (Gill, 1858) -- invalid
  Stizostedion Rafinesque, 1820 -- invalid -- pikeperches
  Stlegicottus Bolin, 1936 -- valid
  Stlengis Jordan and Starks, 1904 -- valid
  Stokellia Whitley, 1955 -- valid
  Stolephorus Lacepède, 1803 -- valid
  Stolephorus advenus Wongratana, 1987 -- valid -- false Indian anchovy
  Stolephorus andhraensis Babu Rao, 1966 -- valid -- Andhra anchovy
  Stolephorus apiensis (Jordan and Seale, 1906) -- valid -- Samoan anchovy
  Stolephorus baganensis Hardenberg, 1933 -- valid -- Bagan anchovy
  Stolephorus brachycephalus Wongratana, 1983 -- valid -- broadhead anchovy
  Stolephorus buccaneeri Strasburg, 1960 -- invalid -- buccaneer anchovy
  Stolephorus carpentariae (De Vis, 1882) -- valid -- Gulf of Carpenteria anchovy
  Stolephorus chinensis (Günther, 1880) -- valid -- China anchovy
  Stolephorus commersonii Lacepède, 1803 -- invalid -- tropical anchovy, Commerson's anchovy
  Stolephorus commersonnii Lacepède, 1803 -- valid -- Commerson's anchovy, tropical anchovy, anchois bombra, boquerón bombra
  Stolephorus dubiosus Wongratana, 1983 -- valid -- Thai anchovy
  Stolephorus holodon (Boulenger, 1900) -- valid -- Natal anchovy
  Stolephorus indicus (van Hasselt, 1823) -- valid -- Indian anchovy, anchois indien, boquerón indio
  Stolephorus insularis Hardenberg, 1933 -- valid -- Hardenberg's anchovy
  Stolephorus miarchus Jordan and Gilbert, 1882 -- invalid
  Stolephorus multibranchus Wongratana, 1987 -- valid -- Caroline anchovy
  Stolephorus nelsoni Wongratana, 1987 -- valid -- Nelson's anchovy
  Stolephorus pacificus Baldwin, 1984 -- valid -- Pacific anchovy
  Stolephorus purpureus Fowler, 1900 -- invalid
  Stolephorus ronquilloi Wongratana, 1983 -- valid -- Ronquillo's anchovy
  Stolephorus tri (Bleeker, 1852) -- valid -- spined anchovy
  Stolephorus waitei Jordan and Seale, 1926 -- valid -- spotty-face anchovy, boquerón de manchas, anchois joues tachetées
  Stolothrissa Regan, 1917 -- valid
  Stomias Cuvier, 1816 -- valid -- scaly dragonfishes
  Strangomera Whitehead, 1965 -- invalid
  Strongylura van Hasselt, 1824 -- valid -- common needlefishes
  Strophidon McClelland, 1844 -- valid -- giant slender morays
  Strophidon punctata McClelland, 1844 -- invalid
  Strophidon sathete (Hamilton, 1822) -- valid -- giant slender moray
  Sturisoma Swainson, 1838 -- valid
  Stygichthys Brittan and Böhlke, 1965 -- valid
  Stygichthys typhlops Brittan and Böhlke, 1965 -- valid -- blind characin, blind characin
  Stygicola Gill, 1863 -- invalid
  Stygnobrotula Böhlke, 1957 -- valid
  Stylephorus Shaw, 1791 -- valid
  Suezia Smith, 1957 -- invalid
  Suezichthys Smith, 1958 -- valid
  Suggrundus Whitley, 1930 -- valid
  Suprasinelepichthys Fernández-Yépez, 1948 -- invalid
  Sutorectus Whitley, 1939 -- valid
  Sutorectus tentaculatus (Peters, 1864) -- valid -- cobbler wobbegong, requin-tapis cordonnier, tapicero zapatudo
  Sutorectus wardi (Whitley, 1939) -- invalid -- northern wobbegong
  Suttonia Smith, 1953 -- valid
  Syacium Ranzani, 1842 -- valid
  Syacium gunteri Ginsburg, 1933 -- valid -- shoal flounder, lenguado arenoso, Shoal Flounder
  Syacium micrurum Ranzani, 1842 -- valid -- channel flounder, lenguado anillado, Channel Flounder, fausse limande pâté
  Syacium papillosum (Linnaeus, 1758) -- valid -- dusky flounder, lenguado moreno, Dusky Flounder
  Symbolophorus Bolin and Wisner in Bolin, 1959 -- valid
  Symphodus Rafinesque, 1810 -- valid
  Symphorichthys Munro, 1967 -- valid
  Symphorus Günther, 1872 -- valid
  Symphurus Rafinesque, 1810 -- valid -- straightmouth tonguefishes
  Symphurus arawak Robins & Randall, 1965 -- valid -- Caribbean tonguefish, lengua caribeña, Caribbean Tonguefish
  Symphurus atricauda (Jordan & Gilbert, 1880) -- invalid -- California tonguefish
  Symphurus civitatus Ginsburg, 1951 -- invalid -- offshore tonguefish
  Symphurus diomedeanus (Goode & Bean, 1885) -- valid -- lengua de vaca, lengua filonegro, spottedfin tonguefish, sole tachetée, Spottedfin Tonguefish
  Symphurus diomedianus (Goode & Bean, 1885) -- invalid
  Symphurus minor Ginsburg, 1951 -- valid -- largescale tonguefish, Largescale Tonguefish
  Symphurus nebulosus (Goode & Bean, 1883) -- valid -- freckled tonguefish
  Symphurus ommaspilus Böhlke, 1961 -- valid -- ocellated tonguefish
  Symphurus parvus Ginsburg, 1951 -- valid -- pygmy tonguefish, lengua pigmea, Pygmy Tonguefish
  Symphurus pelicanus Ginsburg, 1951 -- valid -- longtail tonguefish, lengua colilarga, Longtail Tonguefish
  Symphurus piger (Goode & Bean, 1886) -- valid -- deepwater tonguefish, lengua de vaca perezosa, lengua perezosa, Deepwater Tonguefish
  Symphurus plagiusa (Linnaeus, 1766) -- valid -- blackcheek tonguefish, lengua de vaca gris, lengua gris, Blackcheek Tonguefish
  Symphurus pusillus (Goode & Bean, 1885) -- valid -- northern tonguefish, Northern Tonguefish
  Symphurus rhytisma Böhlke, 1961 -- valid -- patchtail tonguefish
  Symphurus strictus Gilbert, 1905 -- valid
  Symphurus trifasciatus (Alcock, 1894) -- valid -- threeband tonguefish
  Symphurus undatus Gilbert, 1905 -- valid
  Symphurus urospilus Ginsburg, 1951 -- valid -- spottail tonguefish, lengua de vaca colipunteada, lengua colipunteada, Spottail Tonguefish
  Symphysanodon Bleeker, 1878 -- valid
  Sympterichthys Gill, 1878 -- valid
  Sympterygia acuta Garman, 1877 -- valid
  Sympterygia bonapartii Müller and Henle, 1841 -- valid
  Sympterygia brevicaudata (Cope, 1877) -- valid
  Sympterygia lima (Poeppig, 1835) -- valid
  Synagrops Günther, 1887 -- valid
  Synanceia Bloch and Schneider, 1801 -- valid
  Synaphobranchus Johnson, 1862 -- valid
  Synaphobranchus affinis Günther, 1877 -- valid
  Synaphobranchus bathybius Günther, 1877 -- invalid -- deepwater cutthroat eel
  Synaphobranchus brevidorsalis Günther, 1887 -- valid
  Synaphobranchus kaupi Johnson, 1862 -- invalid -- longnosed eel, northern cutthroat eel
  Synaphobranchus oregoni Castle, 1960 -- valid
  Synaphobranchus pinnatus (Gronow in Gray, 1854) -- invalid
  Synaptura Cantor, 1849 -- invalid
  Synaptura kleinii (Risso, 1827) -- invalid -- lace sole
  Synaptura marginata Boulenger, 1900 -- invalid -- shallow-water sole
  Synapturichthys Chabanaud, 1927 -- valid
  Synapturichthys kleinii (Risso, 1827) -- valid -- lace sole
  Synbranchus Bloch, 1795 -- valid
  Synchiropus phaeton (Günther, 1861) -- valid
  Synchiropus rameus (McCulloch, 1926) -- invalid -- splitfin dragonet
  Synchirus Bean, 1890 -- valid
  Syngnathoides Bleeker, 1851 -- valid
  Syngnathus Linnaeus, 1758 -- valid -- seaweed pipefishes
  Syngnathus punctipinnis (Gill, 1862) -- invalid
  Synodontis Cuvier, 1816 -- valid -- back-swimming Congo catfish
  Synodontis alberti Schilthuis, 1891 -- valid
  Synodontis angelicus Schilthuis, 1891 -- valid -- angel catfish, spotted upside-down catfish
  Synodontis decorus Boulenger, 1899 -- valid
  Synodontis eupterus Boulenger, 1901 -- valid
  Synodontis flavitaeniatus Boulenger, 1919 -- valid
  Synodontis nigriventris David, 1936 -- valid -- back-swimming Congo catfish, up-side-down catfish
  Synodontis notatus Vaillant, 1893 -- valid
  Synodus erythrinus Bloch and Schneider, 1801 -- invalid
  Tactostoma Bolin, 1939 -- valid
  Taenianotus Lacepède, 1802 -- valid
  Taenioconger Herre, 1923 -- invalid
  Taeniophorus Bertelsen and Marshall, 1956 -- invalid
  Taeniopsetta Gilbert, 1905 -- valid
  Taeniopsetta radula Gilbert, 1905 -- valid
  Taeniura grabata (E. Geoffroy Saint-Hilaire, 1817) -- valid
  Taeniura lymma (Forsskċl, 1775) -- valid
  Taeniura melanospila Bleeker, 1853 -- invalid
  Taeniura melanospilos Bleeker, 1853 -- invalid
  Taeniura meyeni Müller and Henle, 1841 -- valid
  Talismania Goode and Bean, 1896 -- valid
  Tanakia Jordan and Thompson, 1914 -- valid
  Tanakia chii (Miao, 1934) -- invalid
  Tanakia himantegus (Günther, 1868) -- valid
  Tanakia intermedia (Temminck and Schlegel, 1846) -- invalid
  Tanakia lanceolata (Temminck and Schlegel, 1846) -- valid
  Tanakia limbata (Temminck and Schlegel, 1846) -- valid
  Tanakia miobuta (Tanaka, 1909) -- invalid
  Tanakia shimazui (Tanaka, 1908) -- valid
  Tanakia signifer (Berg, 1907) -- invalid
  Tanakia tanago (Tanaka, 1909) -- valid -- Miyako tango, Tokyo bitterling
  Tanakius Hubbs, 1918 -- valid
  Tandanus Mitchell, 1838 -- valid
  Tandanus bostocki Whitley, 1944 -- valid
  Tanichthys Lin, 1932 -- valid
  Tanichthys albonubes Lin, 1932 -- valid -- white cloud mountain minnow
  Taractes Lowe, 1843 -- valid
  Taractichthys Mead and Maul, 1958 -- valid
  Tarandichthys Jordan and Evermann in Jordan, 1896 -- invalid
  Taratretis Last, 1978 -- valid
  Taratretis derwentensis Last, 1978 -- valid
  Tarletonbeania Eigenmann and Eigenmann, 1890 -- valid
  Tarphops Jordan & Thompson, 1914 -- valid
  Tarphops oligolepis (Bleeker, 1858) -- valid
  Tatia Miranda Ribeiro, 1911 -- valid
  Taurichthys bleekeri Castelnau, 1875 -- invalid
  Tauridea Jordan and Rice in Jordan, 1878 -- invalid
  Taurocottus Soldatov and Pavlenko, 1915 -- valid
  Taurulus Gratzianov, 1907 -- valid
  Telmatherina Boulenger, 1897 -- valid
  Temera Gray, 1831 -- valid
  Temera hardwickii Gray, 1831 -- valid
  Temnistia Richardson, 1836 -- invalid
  Tenualosa Fowler, 1934 -- valid
  Tenualosa ilisha (Hamilton, 1822) -- valid -- hilsa shad
  Tenualosa macrura (Bleeker, 1852) -- valid -- longtail shad
  Tenualosa reevesii (Richardson, 1846) -- valid -- Reeves shad, Reeve's shad
  Tenualosa thibaudeaui (Durand, 1940) -- valid -- Laotian shad
  Tenualosa toli (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- Toli shad, alose toli, sábalo toli
  Tephrinectes Günther, 1862 -- valid
  Terelabrus Randall and Fourmanoir, 1998 -- valid
  Terranatos Taphorn and Thomerson, 1978 -- valid
  Tetrabrachiinae -- valid
  Tetrabrachium Günther, 1880 -- valid
  Tetrachaetodon Weber and de Beaufort, 1936 -- invalid
  Tetragonopterus Cuvier, 1816 -- valid
  Tetragonopterus argenteus Cuvier, 1816 -- valid
  Tetragonopterus artedii Valenciennes in Cuvier and Valenciennes, 1850 -- valid
  Tetragonopterus callistus Boulenger, 1900 -- invalid
  Tetragonopterus chalceus Spix and Agassiz, 1829 -- valid
  Tetragonopterus collettii Steindachner, 1882 -- invalid
  Tetragonopterus guppyi Regan, 1906 -- invalid
  Tetragonopterus heterorhabdus Ulrey, 1894 -- invalid
  Tetragonopterus ocellifer Steindachner, 1882 -- invalid
  Tetragonopterus sanctaefilomenae Steindachner, 1907 -- invalid
  Tetragonopterus ternetzi Boulenger, 1895 -- invalid
  Tetragonopterus ulreyi Boulenger, 1895 -- invalid
  Tetranematichthys Bleeker, 1858 -- valid
  Tetraodon hypselogeneion Bleeker, 1852 -- invalid
  Tetraodon schoutedeni Pellegrin, 1926 -- valid
  Tetraroge Günther, 1860 -- valid
  Thalassinus rondelettii Moreau, 1881 -- invalid
  Thalassophryne Günther, 1861 -- valid -- poison toadfishes
  Thalassophryninae -- valid
  Thaleichthys Girard, 1858 -- valid -- eulachons
  Thalliurus Swainson, 1839 -- invalid
  Tharbacus Smith, 1952 -- invalid
  Thaumatichthys Smith and Radcliffe, 1912 -- valid
  Thayeria Eigenmann, 1908 -- valid
  Thayeria boehlkei Weitzman, 1957 -- valid
  Thayeria obliqua Eigenmann, 1908 -- valid
  Thayeria obliquus Eigenmann, 1908 -- invalid -- penguin fish, penguin fish
  Thermobiotes Geistdoerfer, 1991 -- valid
  Thermobiotes mytilogeiton Geistdoerfer, 1991 -- valid
  Thoburnia hamiltoni Raney and Lachner, 1946 -- valid -- Rustyside Sucker
  Thoracocharax Fowler, 1907 -- valid
  Thoracocharax magdalenae Eigenmann, 1912 -- invalid
  Thoracocharax pectorosus (Garman, 1890) -- invalid
  Thoracocharax securis (De Filippi, 1853) -- valid -- greater hatchetfish, silver hatchfish, greater hatchetfish, silver hatchfish
  Thoracocharax stellatus (Kner, 1858) -- valid
  Thorophos Bruun, 1931 -- valid
  Thrattidion Roberts, 1972 -- valid
  Thrattidion noctivagus Roberts, 1972 -- valid -- Sanaga pygmy herring
  Thrissina Jordan and Seale, 1925 -- invalid
  Thrissina aestuaria (Ogilby, 1910) -- invalid -- estuary anchovy
  Thrissina baelama (Forsskċl, 1775) -- invalid -- hairfin anchovy
  Thryssa Cuvier, 1829 -- valid
  Thryssa adelae (Rutter, 1897) -- valid -- Swatow thryssa
  Thryssa aestuaria (Ogilby, 1910) -- valid -- estuary anchovy, estuarine thryssa
  Thryssa baelama (Forsskċl, 1775) -- valid -- hairfin anchovy, baelama anchovy, anchois-moustache sardin, bocarte belama
  Thryssa brevicauda Roberts, 1978 -- valid -- short-tail thryssa
  Thryssa chefuensis (Günther, 1874) -- valid -- Chefoo thryssa
  Thryssa dayi Wongratana, 1983 -- valid -- Day's thryssa
  Thryssa dussumieri (Valenciennes in Cuvier and Valenciennes, 1848) -- valid -- Dussumier's thryssa, anchois-moustache andeli, bocarte mandelo
  Thryssa encrasicholoides (Bleeker, 1852) -- valid -- false baelama anchovy
  Thryssa gautamiensis Babu Rao, 1971 -- valid -- Gautama thryssa
  Thryssa hamiltonii Gray, 1835 -- valid -- Hamilton's thryssa, bocarte bolinado, anchois-moustache mamata
  Thryssa kammalensis (Bleeker, 1849) -- valid -- Kammal thryssa
  Thryssa kammalensoides Wongratana, 1983 -- valid -- Godavari thryssa
  Thryssa macrognathos Bleeker, 1849 -- invalid
  Thryssa malabarica (Bloch, 1795) -- valid -- Malabar thryssa
  Thryssa marasriae Wongratana, 1987 -- valid -- Marasri's thryssa
  Thryssa mystax (Bloch and Schneider, 1801) -- valid -- moustached thryssa, anchois-moustache sardelle, bocarte dompilón
  Thryssa polybranchialis Wongratana, 1983 -- valid -- humphead thryssa
  Thryssa porava Bleeker, 1849 -- invalid
  Thryssa purava (Hamilton, 1822) -- valid -- oblique-jaw thryssa
  Thryssa rastrosa Roberts, 1978 -- valid -- Fly river thryssa
  Thryssa scratchleyi (Ramsay and Ogilby, 1886) -- valid -- New Guinea thryssa
  Thryssa setirostris (Broussonet, 1782) -- valid -- New Guinea thryssa, longjaw thryssa, anchois-moustache cornu, bocarte de cuernos
  Thryssa spinidens (Jordan and Seale, 1925) -- valid -- Bengal thryssa
  Thryssa stenosoma Wongratana, 1983 -- valid -- slender thryssa
  Thryssa subspinosa Swainson, 1839 -- invalid
  Thryssa vitrirostris (Gilchrist and Thompson, 1908) -- valid -- orangemouth glassnose, orangemouth anchovy
  Thryssa whiteheadi Wongratana, 1983 -- valid -- Whitehead's thryssa
  Thymallus Linck, 1790 -- valid -- graylings
  Thyriscus Gilbert and Burke, 1912 -- valid
  Thyrsoidea Kaup, 1856 -- invalid
  Thyrsoidea macrurus (Bleeker, 1854) -- invalid
  Thysanactis Regan and Trewavas, 1930 -- valid
  Thysanocheilus Kner, 1864 -- invalid
  Thysanophrys Ogilby, 1898 -- valid
  Thysanopsetta Günther, 1880 -- valid
  Thysanopsetta naresi Günther, 1880 -- valid
  Tiaroga Girard, 1856 -- valid
  Tiaroga cobitis Girard, 1856 -- valid -- carpita locha, Loach Minnow
  Tilapia jallae (Boulenger, 1896) -- valid
  Tilesina Schmidt in Jordan and Starks, 1904 -- valid
  Tilodon Thominot, 1881 -- valid
  Tilodon sexfasciatum (Richardson, 1842) -- valid -- sixbanded coralfish
  Tinca Cuvier, 1816 -- valid -- tenches
  Tinca tinca (Linnaeus, 1758) -- valid -- tench, tanche
  Tiricoris Whitley, 1955 -- invalid
  Todarus Grassi and Calandruccio, 1896 -- invalid
  Todarus brevirostre (Facciolà, 1887) -- invalid
  Tomeurus Eigenmann, 1909 -- valid
  Tominanga Kottelat, 1990 -- valid
  Torpedo andersoni Bullis, 1962 -- valid -- Florida torpedo
  Torpedo bauchotae Cadenat, Capape and Desoutter, 1978 -- valid
  Torpedo californica Ayres, 1855 -- valid -- torpedo del Pacífico, Pacific electric ray
  Torpedo fuscomaculata Peters, 1855 -- valid
  Torpedo mackayana Metzelaar, 1919 -- valid
  Torpedo macneilli (Whitley, 1932) -- valid
  Torpedo marmorata Risso, 1810 -- valid -- marbled electric ray
  Torpedo nobiliana Bonaparte, 1835 -- valid -- torpedo del Atlántico, Atlantic torpedo, torpedo de lo alto
  Torpedo panthera Olfers, 1831 -- valid
  Torpedo peruana Chirichigno F., 1963 -- valid
  Torpedo sinuspersici Olfers, 1831 -- valid
  Torpedo tokionis (Tanaka, 1908) -- valid
  Torpedo torpedo (Linnaeus, 1758) -- valid -- eyed electric ray
  Torpedo tremens de Buen, 1959 -- valid
  Torquigener hypselogeneion (Bleeker, 1852) -- valid -- orangebanded blowfish
  Torresia Castelnau, 1875 -- invalid
  Tosana Smith and Pope, 1906 -- valid
  Tosanoides Kamohara, 1953 -- valid
  Tosarhombus Amaoka, 1969 -- valid
  Tosarhombus octoculatus Amaoka, 1969 -- valid
  Trachelyichthys Mees, 1974 -- valid
  Trachicephalus Swainson, 1839 -- valid
  Trachidermus Heckel, 1837 -- valid
  Trachinops Günther, 1861 -- valid
  Trachipterus Goüan, 1770 -- valid -- ribbonfishes
  Trachipterus woodi Smith, 1953 -- invalid -- spotted ribbonfish
  Trachycorystes Bleeker, 1858 -- valid
  Trachyglanis Boulenger, 1902 -- valid
  Trachyglanis minutus Boulenger, 1902 -- valid
  Trachypoma Günther, 1859 -- valid
  Trachypterus Bloch and Schneider, 1801 -- invalid
  Trachyrincus Giorna, 1809 -- valid
  Trachyscorpia Ginsburg, 1953 -- valid
  Tragularius Matsui and Rosenblatt, 1987 -- invalid
  Travancoria Hora, 1941 -- valid
  Travancoria jonesi Hora, 1941 -- valid
  Triaenodon Müller and Henle, 1837 -- valid
  Triaenodon apicalis Whitley, 1939 -- invalid
  Triaenodon obesus (Rüppell, 1837) -- valid -- cazón coralero trompacorta, whitetip reef shark
  Triaenodon obtusus Day, 1878 -- invalid
  Triaenodon smithii Müller and Henle, 1839 -- invalid
  Triakis acutipinna Kato, 1968 -- valid -- sharpfin houndshark
  Triakis attenuata Garrick, 1954 -- invalid
  Triakis barbouri Bigelow and Schroeder, 1944 -- invalid
  Triakis fehlmanni Springer, 1968 -- invalid
  Triakis henlei (Gill, 1863) -- invalid
  Triakis maculata Kner and Steindachner, 1867 -- valid -- spotted houndshark
  Triakis megalopterus (Smith, 1839) -- valid -- sharptooth houndshark
  Triakis scyllium Müller and Henle, 1839 -- valid -- banded houndshark
  Triakis semifasciata Girard, 1855 -- valid -- tiburón leopardo, leopard shark
  Triakis venusta (Tanaka, 1912) -- invalid
  Triathalassothia Fowler, 1943 -- valid
  Tribolodon Sauvage, 1883 -- invalid
  Tribolodon punctatum Sauvage, 1883 -- invalid
  Trichocottus Soldatov and Pavlenko, 1915 -- valid
  Trichomycterus Valenciennes, 1832 -- valid
  Trichopsetta Gill, 1889 -- valid
  Trichopsetta caribbaea Anderson & Gutherz, 1967 -- valid
  Trichopsetta melasma Anderson & Gutherz, 1967 -- valid
  Trichopsetta orbisulcus Anderson & Gutherz, 1967 -- valid
  Trichopsetta ventralis (Goode & Bean, 1885) -- valid -- sash flounder, lenguado de punto, Sash Flounder
  Tridens Eigenmann and Eigenmann, 1889 -- valid
  Tridens brevis Eigenmann and Eigenmann, 1889 -- invalid
  Tridensimilis Schultz, 1944 -- valid
  Tridensimilis brevis (Eigenmann and Eigenmann, 1889) -- valid
  Tridentopsis Myers, 1925 -- valid
  Trigla Linnaeus, 1758 -- valid -- mailed gurnards, gurnards
  Trigloporus Smith, 1934 -- valid
  Triglops Reinhardt, 1830 -- valid
  Triglopsis Girard, 1851 -- invalid
  Trigonectes Myers, 1925 -- valid
  Trigonognathus Mochizuki and Ohe, 1990 -- valid
  Trigonognathus kabeyai Mochizuki and Ohe, 1990 -- valid
  Trigonolampa Regan and Trewavas, 1930 -- valid
  Trinectes Rafinesque, 1832 -- valid -- scrawled soles
  Trinectes maculatus (Bloch & Schneider, 1801) -- valid -- hogchoker, suela tortilla, Hogchoker
  Trinectes paulistanus (Miranda Ribeiro, 1915) -- valid -- southern hogchoker, suela carioca, Southern Hogchoker
  Triphoturus Fraser-Brunner, 1949 -- valid
  Triplophos Brauer, 1902 -- valid
  Triplophysa Rendahl, 1933 -- valid
  Triplophysa fuxianensis Yang and Chu, 1990 -- valid
  Triplophysa yunnanensis Yang in Wu, 1990 -- valid
  Triportheus Cope, 1872 -- valid
  Triportheus angulatus (Spix and Agassiz, 1829) -- valid
  Triportheus angulatus curtus (Garman, 1890) -- valid
  Triportheus angulatus fuscus (Garman, 1890) -- valid
  Triportheus angulatus signatus (Garman, 1890) -- valid
  Triportheus angulatus vittatus (Garman, 1890) -- valid
  Tripterophycis Boulenger, 1902 -- valid
  Triso Randall, Johnson and Lowe, 1989 -- valid
  Trisopterus Rafinesque, 1814 -- valid
  Trochocopus Günther, 1862 -- invalid
  Trogloglanis Eigenmann, 1919 -- valid -- toothless blindcats
  Trogloglanis pattersoni Eigenmann, 1919 -- valid -- Toothless Blindcat
  Trygon Cuvier, 1816 -- invalid
  Trygon bennettii Müller and Henle, 1841 -- invalid
  Trygon dorbignyi Castelnau, 1855 -- invalid
  Trygon glauconotus Kuhl and Hasselt in Bleeker, 1852 -- invalid
  Trygon kuhlii Müller and Henle, 1841 -- invalid
  Trygon oxyrhynchus Sauvage, 1878 -- invalid
  Trygonoptera Müller and Henle, 1841 -- valid
  Trygonoptera mucosa (Whitley, 1939) -- valid
  Trygonoptera ovalis Last and Gomon, 1987 -- valid
  Trygonoptera personata Last and Gomon, 1987 -- valid
  Trygonorrhina Müller and Henle, 1838 -- valid
  Trygonorrhina fasciata Müller and Henle, 1841 -- valid
  Trygonorrhina guanerius Whitley, 1932 -- valid
  Trygonorrhina melaleuca Scott, 1954 -- valid
  Tylerius Hardy, 1984 -- valid
  Tylerius spinosissimus (Regan, 1908) -- valid -- prickle blaasop
  Tylobronchus Eigenmann, 1912 -- invalid
  Tylosurus Cocco, 1833 -- valid
  Tympanopleura Eigenmann, 1912 -- invalid
  Typhlichthys Girard, 1859 -- valid -- southern cavefishes
  Typhlobagrus Miranda Ribeiro, 1907 -- invalid
  Typhlobagrus kronei Miranda Ribeiro, 1907 -- invalid -- blind cave catfish
  Typhlobelus Myers, 1944 -- valid
  Typhlonarke Waite, 1909 -- valid
  Typhlonarke aysoni (Hamilton, 1902) -- valid
  Typhlosynbranchus Pellegrin, 1922 -- valid
  Tyttobrycon Géry, 1973 -- valid
  Tyttobrycon dorsimaculatus Géry, 1973 -- valid
  Uegitglanis Gianferrari, 1923 -- valid
  Uegitglanis zammaranoi Gianferrari, 1923 -- valid
  Ulaema Jordan and Evermann in Jordan, 1895 -- invalid
  Ulca Jordan and Evermann in Jordan, 1896 -- invalid
  Ulcina Cramer in Jordan and Evermann, 1896 -- valid
  Ulcina olrikii (Lütken, 1877) -- valid -- Arctic alligatorfish
  Ultimostomias Beebe, 1933 -- invalid
  Ultimostomias mirabilis Beebe, 1933 -- invalid -- deepsea loosejaw
  Umbra Kramer in Scopoli, 1777 -- valid -- mudminnows
  Umbrina Cuvier, 1816 -- valid -- croakers, roncadores
  Uranga Whitley, 1943 -- invalid
  Uranga nasuta Whitley, 1943 -- invalid
  Uranidea DeKay, 1842 -- invalid
  Uranoscopus Linnaeus, 1758 -- valid
  Urichthys Swainson, 1839 -- invalid
  Urobatis Garman, 1913 -- valid -- shortail round stingrays
  Urobatis halleri (Cooper, 1863) -- valid -- raya redonda común, round stingray
  Urobatis sloani Blainville, 1816 -- invalid -- round stingray
  Uroconger Kaup, 1856 -- valid
  Uroconger lepturus (Richardson, 1845) -- valid
  Uroconger syringinus Ginsburg, 1954 -- valid -- threadtail conger, congrio plumilla
  Uroconger varidens Garman, 1899 -- invalid
  Urogymnus Müller and Henle, 1837 -- valid -- porcupine rays
  Urogymnus africanus (Bloch and Schneider, 1801) -- valid
  Urogymnus asperrimus (Bloch and Schneider, 1801) -- valid
  Urolophoides Lindberg in Soldatov and Lindberg, 1930 -- invalid
  Urolophus aurantiacus Müller and Henle, 1841 -- valid
  Urolophus bucculentus Macleay, 1884 -- valid
  Urolophus chilensis Günther, 1872 -- invalid
  Urolophus circularis McKay, 1966 -- valid
  Urolophus concentricus (Osburn and Nichols, 1916) -- invalid
  Urolophus cruciatus (Lacepède, 1804) -- valid
  Urolophus expansus McCulloch, 1916 -- valid
  Urolophus flavomosaicus Last and Gomon, 1987 -- valid
  Urolophus gigas Scott, 1954 -- valid
  Urolophus halleri Cooper, 1863 -- invalid -- round stingray
  Urolophus jamaicensis (Cuvier, 1816) -- invalid -- yellow stingray
  Urolophus lobatus McKay, 1966 -- valid
  Urolophus maculatus (Garman, 1913) -- invalid
  Urolophus mitosis Last and Gomon, 1987 -- valid
  Urolophus orarius Last and Gomon, 1987 -- valid
  Urolophus paucimaculatus Dixon, 1969 -- valid
  Urolophus sufflavus Whitley, 1929 -- valid
  Urolophus testaceus (Müller and Henle, 1841) -- invalid
  Urolophus viridis McCulloch, 1916 -- valid
  Urolophus westraliensis Last and Gomon, 1987 -- valid
  Urophycis Gill, 1863 -- valid -- codlings
  Uropterygius Rüppell, 1838 -- valid -- finless morays
  Uropterygius acutus Parr, 1930 -- invalid
  Uropterygius concolor Rüppell, 1838 -- valid -- brown moray, uniform reef eel
  Uropterygius diopus Böhlke, 1967 -- invalid -- marbled moray
  Uropterygius fijiensis Fowler and Bean, 1923 -- invalid -- blackspotted moray
  Uropterygius fuscoguttatus Schultz in Schultz, Herald, Lachner, Welander and Woods, 1953 -- valid
  Uropterygius golanii McCosker and Smith, 1997 -- valid
  Uropterygius grassii Roule, 1916 -- invalid
  Uropterygius inornatus Gosline, 1958 -- valid
  Uropterygius macrocephalus (Bleeker, 1865) -- valid -- largehead moray, morena cabezona
  Uropterygius macularius (Lesueur, 1825) -- valid -- marbled moray, morena jaspeada
  Uropterygius marmoratus (Lacepède, 1803) -- valid -- marbled eel, marbled reef-eel
  Uropterygius micropterus (Bleeker, 1852) -- valid
  Uropterygius nagoensis Hatooka, 1984 -- valid
  Uropterygius polyspilus (Regan, 1909) -- valid
  Uropterygius sealei Whitley, 1932 -- invalid
  Uropterygius tigrinus (Lesson, 1828) -- invalid -- tiger reef eel
  Uropterygius wheeleri Blache, 1967 -- valid
  Uropterygius xanthopterus Bleeker, 1859 -- valid
  Uropterygius xenodontus McCosker and Smith, 1997 -- valid
  Urotrygon Gill, 1863 -- valid -- longtail round stingrays
  Urotrygon aspidura (Jordan and Gilbert, 1882) -- valid -- Panamic stingray, raya redonda panámica
  Urotrygon chilensis (Günther, 1872) -- valid -- blotched stingray, raya redonda moteada
  Urotrygon microphthalmum Delsman, 1941 -- valid -- smalleyed round stingray
  Urotrygon nana Miyake and McEachran, 1988 -- valid -- dwarf stingray, raya redonda enana
  Urotrygon reticulata Miyake and McEachran, 1988 -- valid
  Urotrygon rogersi (Jordan and Starks in Jordan, 1895) -- valid -- raya redonda de púas, thorny stingray
  Vaillantella Fowler, 1905 -- valid
  Vaillantella cinnamomea Kottelat, 1994 -- valid
  Vaillantella euepipterus (Vaillant, 1902) -- invalid
  Vaillantella maassi Weber and de Beaufort, 1912 -- valid
  Valencia Myers, 1928 -- valid
  Valenciennellus Jordan and Evermann in Goode and Bean, 1896 -- valid
  Vandellia Valenciennes in Cuvier and Valenciennes, 1846 -- valid
  Varicorhinus Rüppell, 1835 -- valid
  Varicorhinus beso Rüppell, 1835 -- valid
  Variola Swainson, 1839 -- valid
  Velifer Temminck and Schlegel, 1850 -- valid
  Vellitor Jordan and Starks, 1904 -- valid
  Venefica Jordan and Davis, 1891 -- valid
  Venefica multiporosa Karrer, 1982 -- valid
  Venefica ocella Garman, 1899 -- valid
  Venefica proboscidea (Vaillant, 1888) -- valid
  Venefica procera (Goode and Bean, 1883) -- valid
  Venefica tentaculata Garman, 1899 -- valid
  Ventrifossa Gilbert and Hubbs, 1920 -- valid
  Veraequa Jordan & Starks, 1904 -- invalid
  Verasper Jordan & Gilbert in Jordan & Evermann, 1898 -- valid
  Verasper moseri Jordan & Gilbert in Jordan & Evermann, 1898 -- valid -- barfin flounder, matsukawa
  Verasper variegatus (Temminck & Schlegel, 1846) -- valid -- hoshigarei, spotted halibut
  Verecundum rasile Jordan, 1891 -- invalid
  Verilus Poey, 1860 -- valid
  Verma Jordan and Evermann, 1896 -- invalid
  Verma anguiformis (Peters, 1877) -- invalid
  Verreo Jordan and Snyder, 1902 -- invalid
  Verriculus Jordan and Evermann, 1903 -- invalid
  Vespicula Jordan and Richardson, 1910 -- valid
  Vimba Fitzinger, 1873 -- valid
  Vimba vimba (Linnaeus, 1758) -- valid -- Vimba, Zarte
  Vincentia Castelnau, 1872 -- valid
  Vinculum McCulloch, 1914 -- invalid
  Vinculum sexfasciatus (Richardson, 1842) -- invalid -- sixbanded coralfish
  Vitiaziella Rass, 1955 -- valid
  Vulpecula Garman, 1913 -- invalid
  Vulpecula marina Garman, 1913 -- invalid
  Wallago Bleeker, 1851 -- valid
  Wallago attu (Bloch and Schneider, 1801) -- valid -- freshwater shark
  Wallago hexanema (Kner, 1866) -- valid
  Wattsia Chan and Chilvers, 1974 -- valid
  Wetmorella Fowler and Bean, 1928 -- valid
  Winteria Brauer, 1901 -- valid
  Woodsia Grey, 1959 -- valid
  Xanothon Smith, 1956 -- invalid
  Xarifania Klausewitz and Eibl-Eibesfeldt, 1959 -- invalid
  Xenagoniates Myers, 1942 -- valid
  Xenagoniates bondi Myers, 1942 -- valid
  Xenaploactis Poss and Eschmeyer, 1980 -- valid
  Xenatherina Regan, 1907 -- invalid
  Xenentodon Regan, 1911 -- valid -- Asian freshwater needlefishes
  Xeneretmus Gilbert in Jordan, 1903 -- valid
  Xenichthys Gill, 1863 -- valid
  Xenistius Jordan and Gilbert, 1883 -- valid
  Xenocara Regan, 1904 -- invalid
  Xenocharax Günther, 1867 -- valid
  Xenocharax crassus Pelligrin, 1900 -- invalid
  Xenocharax spilurus Günther, 1867 -- valid
  Xenoconger Regan, 1912 -- valid
  Xenoconger fryeri Regan, 1912 -- valid
  Xenocypris Günther, 1868 -- valid
  Xenocypris argentea Günther, 1868 -- valid
  Xenocypris davidi Bleeker, 1871 -- valid
  Xenocypris fangi Tchang, 1930 -- valid
  Xenocypris setchuanensis Tchang, 1930 -- invalid
  Xenocypris yunnanensis Nichols, 1925 -- valid
  Xenocypris yunnanensis fangi Tchang, 1930 -- invalid
  Xenocyttus Abe, 1957 -- invalid
  Xenodermichthys Günther, 1878 -- valid
  Xenodexia Hubbs, 1950 -- valid
  Xenojulis de Beaufort, 1939 -- valid
  Xenolepidichthys Gilchrist, 1922 -- valid
  Xenomelaniris Schultz, 1948 -- invalid
  Xenomugil Schultz, 1946 -- invalid
  Xenomystax Gilbert, 1891 -- valid
  Xenomystax atrarius Gilbert, 1891 -- valid
  Xenomystax austrinus Smith and Kanazawa in Smith, 1989 -- valid
  Xenomystax bidentatus (Reid, 1940) -- valid
  Xenomystax congroides Smith and Kanazawa in Smith, 1989 -- valid -- bristletooth conger
  Xenomystax trucidans Alcock, 1894 -- valid
  Xenomystus Günther, 1868 -- valid
  Xenomystus nigri (Günther, 1868) -- valid -- false featherback, African knifefish, false featherback
  Xenoophorus Hubbs and Turner, 1939 -- valid
  Xenophthalmichthys Regan, 1925 -- valid
  Xenopoecilus Regan, 1911 -- valid
  Xenoscarops Schultz, 1958 -- invalid
  Xenoscarus Evermann and Radcliff, 1917 -- invalid
  Xenotaenia Turner, 1946 -- valid
  Xenotoca Hubbs and Turner, 1939 -- valid
  Xenurobrycon Myers and Miranda Ribeiro, 1945 -- valid
  Xenurobrycon heterodon Weitzman and Fink, 1985 -- valid
  Xererpes fucorum (Jordan and Gilbert, 1880) -- invalid
  Xiphocheilus Bleeker, 1857 -- valid
  Xiphocheilus fasciatus Günther, 1867 -- invalid
  Xiphocheilus gymnogenys Günther in Playfair and Günther, 1867 -- invalid
  Xiphophorus Heckel, 1848 -- valid -- swordtails
  Xiphostoma maculatum Valenciennes in Cuvier and Valenciennes, 1850 -- invalid
  Xiphostoma taedo Cope, 1872 -- invalid
  Xiphypops Jordan in Jordan and Jordan, 1922 -- invalid
  Xyliphius Eigenmann, 1912 -- valid
  Xyrauchen Eigenmann and Kirsch in Kirsch, 1889 -- valid -- razorback suckers
  Xyrauchen texanus (Abbott, 1860) -- valid -- Razorback Sucker, matalote jorobado
  Xyrichthys Cuvier, 1829 -- invalid
  Xyrichthys lecluse Quoy and Gaimard, 1824 -- invalid
  Xyrichthys mundiceps Gill, 1862 -- invalid
  Xyrichthys rosipes (Jordan and Gilbert, 1884) -- invalid
  Xyrichthys splendens Castelnau, 1855 -- invalid
  Xyrichtys Cuvier, 1814 -- valid
  Xyrichtys jacksonensis (Ramsay, 1881) -- valid -- keel-head
  Xyrichtys martinicensis Valenciennes in Cuvier and Valenciennes, 1840 -- valid -- doncella llorona, cuchillo llorón, rosy razorfish
  Xyrichtys mundiceps Gill, 1862 -- valid -- cuchillo desnudo, Cape razorfish
  Xyrichtys novacula (Linnaeus, 1758) -- valid -- doncella verde, cuchillo perlino, pearly razorfish
  Xyrichtys pentadactylus (Linnaeus, 1758) -- valid -- fivefinger razorfish
  Xyrichtys splendens Castelnau, 1855 -- valid -- doncella de lunar, cuchillo de lunar, green razorfish
  Xyrichtys woodi (Jenkins, 1901) -- invalid
  Xyrula Jordan, 1890 -- invalid
  Xystaema Jordan and Evermann in Jordan, 1895 -- invalid
  Xystreurys Jordan & Gilbert, 1880 -- valid
  Yarrella Goode and Bean, 1896 -- valid
  Yirrkala Whitley, 1940 -- valid
  Yirrkala lumbricoides (Bleeker, 1853) -- valid
  Yunnanilus Nichols, 1925 -- valid
  Yunnanilus analis Yang in Wu, 1990 -- valid
  Yunnanilus paludosus Kottelat and Chu, 1988 -- valid
  Zacco Jordan and Evermann, 1902 -- valid
  Zacco chengtui Kimura, 1934 -- valid
  Zacco platypus (Temminck and Schlegel, 1846) -- valid
  Zacco spilurus (Günther, 1868) -- invalid
  Zameus Jordan and Fowler, 1903 -- invalid
  Zameus squamulosus (Günther, 1877) -- invalid
  Zanclorhynchus Günther, 1880 -- valid
  Zaniolepis Girard, 1858 -- valid
  Zanobatus Garman, 1913 -- valid
  Zanobatus schoenleinii (Müller and Henle, 1841) -- valid
  Zapteryx exasperata (Jordan and Gilbert, 1880) -- valid -- guitarra rayada, banded guitarfish
  Zapteryx xyster Jordan and Evermann, 1896 -- valid
  Zebrasoma veliferum (Bloch, 1795) -- invalid -- sailfin tang
  Zebrias Jordan & Snyder, 1900 -- valid
  Zebrias regani (Gilchrist, 1906) -- valid -- zebra sole
  Zebrias zebra (Bloch, 1787) -- valid -- zebra sole, striped sole, shimaushinoshita
  Zen Jordan, 1903 -- invalid
  Zenion Jordan and Evermann, 1896 -- valid
  Zenopsis Gill, 1862 -- valid
  Zesticelus Jordan and Evermann, 1896 -- valid
  Zeugopterus Gottsche, 1835 -- valid
  Zeus Linnaeus, 1758 -- valid
  Zingel Cloquet, 1817 -- valid
  Zu Walters and Fitch, 1960 -- valid
  Zungaro Bleeker, 1858 -- valid
  Zygaena Cuvier, 1816 -- invalid
  Zygaena blochii Cuvier, 1816 -- invalid
  Zygaena dissimilis Murray, 1887 -- invalid
  Zygaena erythraea Hemprich and Ehrenberg, 1899 -- invalid
  Zygaena indica van Hasselt, 1823 -- invalid
  Zygaena lewini Griffith and Smith, 1834 -- invalid
  Zygaena mokarran Rüppell, 1837 -- invalid
  Zygaena subarcuata Storer, 1848 -- invalid
  Zygaena tudes Valenciennes, 1822 -- invalid
  Zygaena vulgaris Cloquet, 1830 -- invalid
  Zygoena Risso, 1827 -- invalid
   

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