The ITIS Logo The Search Results banner for the ITIS Data pages

Publication: Nelson, Joseph S., Edwin J. Crossman, H. Espinosa-Pérez, L. T. Findley, C. R. Gilbert, et al., eds. 2004. Common and scientific names of fishes from the United States, Canada, and Mexico, Sixth Edition. American Fisheries Society Special Publication, no. 29. ix + 386.

ITIS records citing this publication
 
 Kingdom Animalia
  Ablennes hians (Valenciennes in Cuvier and Valenciennes, 1846) -- valid -- agujón sable, flat needlefish, sauro atlántico
  Aboma etheostoma Jordan and Starks in Jordan, 1895 -- valid -- gobio escamoso, scaly goby
  Abudefduf declivifrons (Gill, 1862) -- valid -- Mexican night sergeant, petaca mexicana
  Abudefduf saxatilis (Linnaeus, 1758) -- valid -- petaca rayada, píntano, sergeant major
  Abudefduf taurus (Müller and Troschel in Schomburgk, 1848) -- valid -- night sergeant, petaca toro, píntano toro
  Abudefduf troschelii (Gill, 1862) -- valid -- Pacific sergeant major, Panamic sergeant major, petaca banderita
  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 chaplini Böhlke, 1957 -- valid -- papillose blenny, sapito papiloso
  Acanthemblemaria crockeri Beebe and Tee-Van, 1938 -- valid -- browncheek blenny, tubícola cachetón
  Acanthemblemaria greenfieldi Smith-Vaniz and Palacio, 1974 -- valid -- stalk blenny, tubícola palito
  Acanthemblemaria macrospilus Brock, 1940 -- valid -- barnacle blenny, barnacle blenny, Mexican barnacle blenny, tubícola mexicano
  Acanthemblemaria mangognatha Hastings and Robertson, 1999 -- valid -- Revillagigedo barnacle blenny, tubícola mango
  Acanthemblemaria spinosa Metzelaar, 1919 -- valid -- sapito espinoso, spinyhead blenny, spinyhead blenny, tubícola cabeza espinosa
  Acanthocybium solandri (Cuvier in Cuvier and Valenciennes, 1832) -- valid -- peto, thazard-bâtard, wahoo
  Acanthogobius flavimanus (Temminck and Schlegel, 1845) -- valid -- gobio extranjero, yellowfin goby
  Acantholumpenus mackayi (Gilbert, 1896) -- valid -- blackline prickleback, pighead prickleback
  Acanthostracion quadricornis (Linnaeus, 1758) -- valid -- scrawled cowfish, Scrawled Cowfish, torito común, torito cornudo
  Acanthuridae -- valid -- cirujanos, poissons-chirurgiens, surgeonfishes, tangs
  Acanthurus achilles Shaw, 1803 -- valid -- Achilles tang, Achilles Tang, cirujano encendido, cirujano encendido, redspot surgeonfish, redspot tang, redtail surgeonfish
  Acanthurus bahianus Castelnau, 1855 -- valid -- barbero, cirujano pardo, ocean surgeon
  Acanthurus chirurgus (Bloch, 1787) -- valid -- barbero rayado, cirujano rayado, Doctorfish, doctorfish
  Acanthurus coeruleus Bloch & Schneider, 1801 -- valid -- barbero azul, Blue Tang, blue tang, cirujano azul
  Acanthurus nigricans (Linnaeus, 1758) -- valid -- cirujano cariblanco, Goldrim Surgeonfish, goldrim surgeonfish, whitecheek surgeonfish
  Acanthurus triostegus (Linnaeus, 1758) -- valid -- cirujano reo, Convict Surgeonfish, convict surgeonfish, convict tang, convictfish
  Acanthurus xanthopterus Valenciennes in Cuvier & Valenciennes, 1835 -- valid -- cirujano aleta amarilla, Yellowfin Surgeonfish, yellowfin surgeonfish
  Acentronura dendritica (Barbour, 1905) -- valid -- caballito enano, caballito pipa, pipehorse, prehensile-tailed pipefish, seahorse pipefish
  Achiridae -- valid -- American soles, lenguados suelas, scrawled soles, soles américaines
  Achirus klunzingeri (Steindachner, 1880) -- valid -- brown sole, Brown Sole, suela plomiza
  Achirus lineatus (Linnaeus, 1758) -- valid -- acedía rayada, lined sole, Lined Sole, suela listada
  Achirus mazatlanus (Steindachner, 1869) -- valid -- Mexican sole, Pacific lined sole, Pacific Lined Sole, tepalcate
  Achirus scutum (Günther, 1862) -- valid -- comal, network sole, Network Sole
  Achirus zebrinus Clark, 1936 -- valid -- suela cebra, Tehuantepec sole, Tehuantepec Sole
  Acipenser brevirostrum Lesueur, 1818 -- valid -- shortnose sturgeon
  Acipenser fulvescens Rafinesque, 1817 -- valid -- esturgeon jaune, lake sturgeon
  Acipenser medirostris Ayres, 1854 -- valid -- esturión verde, green sturgeon
  Acipenser oxyrinchus Mitchill, 1815 -- valid -- Atlantic sturgeon, esturgeon noir, esturión del Atlántico, Gulf sturgeon
  Acipenser transmontanus Richardson, 1836 -- valid -- esturión blanco, white sturgeon
  Acipenseridae -- valid -- esturgeons, esturiones, sturgeons
  Acrocheilus alutaceus Agassiz and Pickering in Agassiz, 1855 -- valid -- chiselmouth
  Acropomatidae -- valid -- farolitos, lanternbellies, macondes, temperate ocean-basses
  Actinopterygii -- valid -- poisson épineux, poissons à nageoires rayonnées, ray-finned fishes, spiny rayed fishes
  Acyrtops amplicirrus Briggs, 1955 -- valid -- chupapiedra nariz crestada, flarenostril clingfish
  Acyrtops beryllinus (Hildebrand and Ginsburg, 1926) -- valid -- emerald clingfish, pequita esmerilada
  Acyrtus artius Briggs, 1955 -- valid -- chupapiedra papilosa, papillate clingfish, pequita gusarapo
  Acyrtus rubiginosus (Poey, 1868) -- valid -- chupapiedra roja, pequita roja, red clingfish
  Adinia xenica (Jordan and Gilbert, 1882) -- valid -- diamond killifish
  Aetobatus narinari (Euphrasen, 1790) -- valid -- bonnetray, chucho pintado, obispo, spotted eagle ray
  Agonidae -- valid -- alligatorfishes, bandidos, poachers, poissons-alligators, sea poachers
  Agonopsis sterletus (Gilbert in Jordan and Evermann, 1898) -- valid -- bandido narigón, southern spearnose poacher
  Agonopsis vulsa (Jordan and Gilbert, 1880) -- valid -- northern spearnose poacher
  Agonostomus monticola (Bancroft in Griffith and Smith, 1834) -- valid -- dajao, mountain mullet, trucha de tierra caliente
  Agosia chrysogaster Girard, 1856 -- valid -- longfin dace, pupo panzaverde
  Ahlia egmontis (Jordan, 1884) -- valid -- key worm eel, safío de llave, tieso de cayo
  Albatrossia pectoralis (Gilbert, 1892) -- valid -- giant grenadier, giant rattail
  Albula nemoptera (Fowler, 1911) -- valid -- macabí de hebra, shafted bonefish
  Albula vulpes (Linnaeus, 1758) -- valid -- bonefish, macabí
  Albulidae -- valid -- bananafishes, bananes de mer, bonefishes, ladyfishes, macabíes
  Albuliformes -- valid
  Alectis ciliaris (Bloch, 1787) -- valid -- African pompano, flechudo, pámpano de hebra, threadfin
  Alectrias alectrolophus (Pallas, 1814) -- valid -- stone cockscomb
  Alectridium aurantiacum Gilbert and Burke, 1912 -- valid -- lesser prickleback
  Alepisauridae -- valid -- cavalos, lancetfishes, lanzones
  Alepisaurus brevirostris Gibbs, 1960 -- valid -- shortnose lancetfish
  Alepisaurus ferox Lowe, 1833 -- valid -- conejo de lo alto, lanzón picudo, longnose lancetfish
  Algansea aphanea Barbour and Miller, 1978 -- valid -- pupo del Ayutla, riffle chub
  Algansea avia Barbour and Miller, 1978 -- valid -- pupo de Tepic, remote chub
  Algansea barbata Alvarez and Cortés, 1964 -- valid -- Lerma chub, pupo del Lerma
  Algansea lacustris Steindachner, 1895 -- valid -- acúmara, Pátzcuaro chub
  Algansea monticola Barbour and Contreras-Balderas, 1968 -- valid -- mountain chub, pupo del Juchipila
  Algansea popoche (Jordan and Snyder, 1899) -- valid -- popocha, popoche chub
  Algansea tincella (Valenciennes in Cuvier and Valenciennes, 1844) -- valid -- pupo del Valle, spottail chub
  Alloclinus holderi (Lauderbach in Jordan and Starks, 1907) -- valid -- island kelpfish, trambollo isleño
  Allodontichthys hubbsi Miller and Uyeno, 1980 -- valid -- mexcalpique de Tuxpan, whitepatch splitfin
  Allodontichthys polylepis Rauchenberger, 1988 -- valid -- finescale splitfin, mexcalpique escamitas
  Allodontichthys tamazulae Turner, 1946 -- valid -- mexcalpique de Tamazula, peppered splitfin
  Allodontichthys zonistius (Hubbs, 1932) -- valid -- bandfin splitfin, mexcalpique de Colima
  Allolumpenus hypochromus Hubbs and Schultz, 1932 -- invalid -- Y-prickleback
  Alloophorus robustus (Bean, 1892) -- valid -- bulldog goodeid, chegua
  Allosmerus elongatus (Ayres, 1854) -- valid -- whitebait smelt
  Allothunnus fallai Serventy, 1948 -- valid -- atún lanzón, slender tuna, thon élégante
  Allotoca catarinae (de Buen, 1942) -- valid -- Catarina allotoca, tiro Catarina
  Allotoca diazi (Meek, 1902) -- valid -- chorumo, Patzcuaro allotoca
  Allotoca dugesii (Bean, 1887) -- valid -- bumblebee allotoca, tiro chato
  Allotoca goslinei Smith and Miller, 1987 -- valid -- banded allotoca, tiro listado
  Allotoca maculata Smith and Miller, 1980 -- valid -- blackspot allotoca, tiro manchado
  Allotoca meeki (Alvarez, 1959) -- valid -- tiro de Zirahuén, Zirahuen allotoca
  Allotoca zacapuensis Meyer, Radda and Domínguez, 2001 -- valid -- tiro de Zacapu, Zacapu allotoca
  Alopias pelagicus Nakamura, 1935 -- valid -- pelagic thresher, pelagic thresher shark, zorro pelágico
  Alopias superciliosus (Lowe, 1841) -- valid -- bigeye thresher, tiburón zorro ojón, zorro ojón
  Alopias vulpinus (Bonnaterre, 1788) -- valid -- renard marin, thresher shark, tiburón zorro común, zorro
  Alopiidae Bonaparte, 1838 -- valid -- requins-renards, thresher sharks, tiburones zorro
  Alosa aestivalis (Mitchill, 1814) -- valid -- alose d'été, blueback herring, blueback shad
  Alosa alabamae Jordan and Evermann in Evermann, 1896 -- valid -- Alabama shad, Gulf shad, Ohio shad
  Alosa chrysochloris (Rafinesque, 1820) -- valid -- blue herring, golden shad, green herring, river herring, skipjack, skipjack herring, skipjack shad
  Alosa mediocris (Mitchill, 1814) -- valid -- bonejack, fall herring, freshwater taylor, hickory jack, hickory shad, shad herring
  Alosa pseudoharengus (Wilson, 1811) -- valid -- alewife, bigeye herring, branch herring, freshwater herring, gaspareau, gray herring, grayback, kyak, sawbelly, white herring
  Alosa sapidissima (Wilson, 1811) -- valid -- alose savoureuse, American shad, Atlantic shad, common shad, sábalo americano, white shad
  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 heudelotii Hollard, 1855 -- valid -- dotterel filefish, Dotterel Filefish, lija jaspeada
  Aluterus monoceros (Linnaeus, 1758) -- valid -- lija barbuda, Unicorn Filefish, unicorn filefish
  Aluterus schoepfii (Walbaum, 1792) -- valid -- lija anaranjada, lija naranja, orange filefish, Orange Filefish, orange filefish
  Aluterus scriptus (Osbeck, 1765) -- valid -- lija trompa, scrawled filefish, Scrawled Filefish, unicornfish
  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 -- crapet de roche, rock bass
  Amblycirrhitus pinos (Mowbray in Breder, 1927) -- valid -- halcón rayadito, rayadito, redspotted hawkfish
  Amblyopsidae Bonaparte, 1846 -- valid -- amblyopes, cave fishes, cavefishes, peces cavernícolas
  Amblyopsis rosae (Eigenmann, 1898) -- valid -- Ozark cavefish
  Amblyopsis spelaea DeKay, 1842 -- valid -- northern cavefish
  Amblyraja radiata (Donovan, 1808) -- valid -- raie épineuse, starry skate, thorny skate
  Ameca splendens Miller and Fitzsimons, 1971 -- valid -- butterfly splitfin, mexcalpique mariposa
  Ameiurus brunneus Jordan, 1877 -- valid -- snail bullhead
  Ameiurus catus (Linnaeus, 1758) -- valid -- white bullhead, white catfish
  Ameiurus melas (Rafinesque, 1820) -- valid -- bagre torito negro, black bullhead
  Ameiurus natalis (Lesueur, 1819) -- valid -- bagre torito amarillo, barbotte jaune, yellow bullhead
  Ameiurus nebulosus (Lesueur, 1819) -- valid -- barbotte brune, brown bullhead
  Ameiurus platycephalus (Girard, 1859) -- valid -- flat bullhead
  Ameiurus serracanthus (Yerger and Relyea, 1968) -- valid -- spotted bullhead
  Amia calva Linnaeus, 1766 -- valid -- bowfin, poisson-castor
  Amiidae -- valid -- amias, bowfin, bowfins, poissons-castors
  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 pellucida (Putnam, 1863) -- valid -- dard de sable, Eastern Sand Darter
  Ammocrypta vivax Hay, 1882 -- valid -- Scaly Sand Darter
  Ammodytes americanus DeKay, 1842 -- valid -- American sand lance, inshore sand lance, lance, lançon d'Amérique, sand eel
  Ammodytes dubius Reinhardt, 1837 -- valid -- lançon du nord, northern sand lance, offshore sand lance, sand eel
  Ammodytes hexapterus Pallas, 1814 -- valid -- Pacific sand lance
  Ammodytidae -- valid -- lançons, peones, sand lances
  Ammodytoides gilli (Bean, 1895) -- valid -- Panamic sand lance, peón panámico
  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
  Anablepidae Garman, 1895 -- valid -- anablepids, cuatrojos, four-eyed fishes, four-eyes, poissons à quatre yeux
  Anarchias galapagensis (Seale, 1940) -- valid -- hardtail moray, morena cola dura
  Anarchias similis (Lea, 1913) -- valid -- morena enana, morena pigmea, pygmy moray
  Anarchopterus criniger (Bean and Dresel, 1884) -- valid -- fringed pipefish, pez pipa orlado
  Anarchopterus tectus (Dawson, 1978) -- valid -- insular pipefish, pez pipa isleño
  Anarhichadidae Bonaparte, 1846 -- valid -- peces lobo, poissons-loups, wolffishes
  Anarhichas denticulatus Krøyer, 1845 -- valid -- northern wolffish
  Anarhichas lupus Linnaeus, 1758 -- valid -- Atlantic wolffish, loup atlantique
  Anarhichas minor Olafsen, 1772 -- valid -- loup tacheté, spotted wolffish
  Anarhichas orientalis Pallas, 1814 -- valid -- Bering wolffish
  Anarrhichthys ocellatus Ayres, 1855 -- valid -- northern wolffish, wolf-eel
  Anchoa analis (Miller, 1945) -- valid -- anchoa aletona del Pacífico, longfin Pacific anchovy
  Anchoa argentivittata (Regan, 1904) -- valid -- anchoa plateada, Regan's anchovy, silverstripe anchovy
  Anchoa belizensis (Thomerson and Greenfield, 1975) -- valid -- anchoa beliceña, Belize anchovy
  Anchoa cayorum (Fowler, 1906) -- valid -- anchoa de cayo, key anchovy, manjúa de los cayos
  Anchoa colonensis Hildebrand, 1943 -- valid -- anchoa rayita, Carribean anchovy, narrow-striped anchovy, narrowstriped anchovy
  Anchoa compressa (Girard, 1858) -- valid -- anchoa alta, deepbody anchovy
  Anchoa cubana (Poey, 1868) -- valid -- anchoa cubana, Cuban anchovy, manjúa cubana
  Anchoa curta (Jordan and Gilbert, 1882) -- valid -- anchoa chaparra, short anchovy
  Anchoa delicatissima (Girard, 1854) -- valid -- anchoa delicada, slough anchovy
  Anchoa exigua (Jordan and Gilbert, 1882) -- valid -- anchoa fina, slender anchovy
  Anchoa helleri (Hubbs, 1921) -- valid -- anchoa del Golfo, Gulf anchovy, Heller's anchovy
  Anchoa hepsetus (Linnaeus, 1758) -- valid -- anchoa legítima, broad-striped anchovy, manjúa listada, striped anchovy
  Anchoa ischana (Jordan and Gilbert, 1882) -- valid -- anchoa chicotera, sharpnose anchovy, slender anchovy
  Anchoa lamprotaenia Hildebrand, 1943 -- valid -- anchoa ojuda, big-eye anchovy, bigeye anchovy, longnose anchovy, manjúa ojuda
  Anchoa lucida (Jordan and Gilbert, 1882) -- valid -- anchoa ojitos, bright anchovy
  Anchoa lyolepis (Evermann and Marsh, 1900) -- valid -- anchoa mulata, dusky anchovy, manjúa mulata, shortfinger anchovy
  Anchoa mitchilli (Valenciennes in Cuvier and Valenciennes, 1848) -- valid -- anchoa de caleta, bay anchovy
  Anchoa mundeola (Gilbert and Pierson in Jordan and Evermann, 1898) -- valid -- anchoa panameña falsa, false Panama anchovy
  Anchoa mundeoloides (Breder, 1928) -- valid -- anchoa golfina, northern Gulf anchovy
  Anchoa nasus (Kner and Steindachner, 1867) -- valid -- anchoa trompuda, bignose anchovy, longnose anchovy
  Anchoa parva (Meek and Hildebrand, 1923) -- valid -- anchoa parva, little anchovy, manjúa parva
  Anchoa scofieldi (Jordan and Culver in Jordan, 1895) -- valid -- anchoa amarilla, Scofield's anchovy, yellow anchovy
  Anchoa walkeri Baldwin and Chang, 1970 -- valid -- anchoa persistente, persistent anchovy, Walker's anchovy
  Anchovia clupeoides (Swainson, 1839) -- valid -- anchoveta sardina, hachudo, zabaleta anchovy
  Anchovia macrolepidota (Kner, 1863) -- valid -- anchoveta escamuda, bigscale anchovy
  Anchoviella perfasciata (Poey, 1860) -- valid -- anchoa chata, flat anchovy, manjúa chata, Poey's anchovy
  Ancylopsetta dendritica Gilbert, 1890 -- valid -- lenguado tresojos, threespot sand flounder, Threespot Sand Flounder
  Ancylopsetta dilecta (Goode & Bean, 1883) -- valid -- lenguado tres manchas, Three-eye Flounder, three-eye flounder
  Ancylopsetta quadrocellata Gill, 1864 -- invalid -- lenguado cuatro manchas, Ocellated Flounder, ocellated flounder
  Anguilla rostrata (Lesueur, 1817) -- valid -- American eel, anguila, anguila americana, anguille d'Amérique
  Anguillidae -- valid -- anguilas de río, anguilles d'eau douce, freshwater eels
  Anguilliformes -- valid -- anguilles, eels
  Anisarchus medius (Reinhardt, 1837) -- valid -- stout eelblenny
  Anisotremus caesius (Jordan and Gilbert, 1882) -- valid -- burro mojarro, silvergray grunt
  Anisotremus davidsonii (Steindachner, 1876) -- valid -- sargo, sargo rayado
  Anisotremus dovii (Günther, 1864) -- valid -- blackbarred grunt, burro rompepaila
  Anisotremus interruptus (Gill, 1862) -- valid -- burrito grunt, burro bacoco
  Anisotremus pacifici (Günther, 1864) -- valid -- burro carruco, carruco grunt
  Anisotremus surinamensis (Bloch, 1791) -- valid -- black margate, burriquete, pompón
  Anisotremus taeniatus Gill, 1861 -- valid -- burro bandera, catalina, Panamic porkfish
  Anisotremus virginicus (Linnaeus, 1758) -- valid -- burro payaso, catalineta, porkfish
  Anomalopidae -- valid -- flashlight fishes, flashlightfishes, laterneye fishes, ojos de linterna, poissons-phares
  Anoplagonus inermis (Günther, 1860) -- valid -- smooth alligatorfish
  Anoplarchus insignis Gilbert and Burke, 1912 -- valid -- slender cockscomb
  Anoplarchus purpurescens Gill, 1861 -- valid -- high cockscomb
  Anoplopoma fimbria (Pallas, 1814) -- valid -- bacalao negro, sablefish
  Anoplopomatidae -- valid -- bacalaos negros, morues noires, sablefishes
  Anotopteridae -- invalid -- dagas, daggertooth, daggertooths, pharaons
  Anotopterus nikparini Kukuev, 1998 -- valid -- daga, North Pacific daggertooth
  Anotopterus pharao Zugmayer, 1911 -- valid -- daggertooth
  Antennariidae -- valid -- anglerfishes, antennaires, frogfishes, ranisapos, sea mice
  Antennarius avalonis Jordan and Starks, 1907 -- valid -- ranisapo antenado, roughjaw frogfish
  Antennarius multiocellatus (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- longlure frogfish, pescador caña larga, ranisapo ceboso
  Antennarius ocellatus (Bloch and Schneider, 1801) -- valid -- ocellated frogfish, pescador ocelado, ranisapo pescador
  Antennarius pauciradiatus Schultz, 1957 -- valid -- dwarf frogfish, dwarfed frogfish, ranisapo enano
  Antennarius radiosus Garman, 1896 -- valid -- big-eyed frogfish, ranisapo uniocelado, singlespot frogfish
  Antennarius sanguineus Gill, 1863 -- valid -- bloody frogfish, ranisapo sangrón, sanguine frogfish
  Antennarius striatus (Shaw in Shaw and Nodder, 1794) -- valid -- pescador, ranisapo estriado, striated frogfish
  Antennatus strigatus (Gill, 1863) -- valid -- bandtail frogfish, ranisapo rabo listado
  Anthias nicholsi Firth, 1933 -- valid -- mero aleta amarilla, yellowfin bass
  Anthias tenuis Nichols, 1920 -- valid -- mero naricita, threadnose bass
  Anthias woodsi Anderson and Heemstra, 1980 -- valid -- swallowtail bass
  Antigonia capros Lowe, 1843 -- valid -- deepbody boarfish, elevado, verraco alto
  Antigonia combatia Berry and Rathjen, 1959 -- valid -- pez pecarí, shortspine boarfish
  Antimora microlepis Bean, 1890 -- valid -- finescale antimora, finescale codling, mora viola, Pacific flatnose
  Apeltes quadracus (Mitchill, 1815) -- valid -- bloody stickleback, épinoche à quatre épines, fourspine stickleback
  Aphredoderidae Bonaparte, 1846 -- valid -- percas pirata, perches-pirates, pirate perches
  Aphredoderus sayanus (Gilliams, 1824) -- valid -- pirate perch
  Aplatophis chauliodus Böhlke, 1956 -- valid -- tusky eel
  Aplocheilidae Bleeker, 1860 -- valid -- almirantes, aplochéilidés, egg-laying toothcarps, rivulines
  Aplodinotus grunniens Rafinesque, 1819 -- valid -- freshwater drum, malachigan, roncador de agua dulce
  Apodichthys flavidus Girard, 1854 -- valid -- penpoint gunnel
  Apodichthys fucorum Jordan and Gilbert, 1880 -- valid -- espinoso de marea zacatero, rockweed gunnel
  Apogon affinis (Poey, 1875) -- valid -- bigtooth cardinalfish, cardenal dentudo, cardenal dientón
  Apogon atricaudus Jordan and McGregor in Jordan and Evermann, 1898 -- valid -- cardenal sencillo, plain cardinalfish
  Apogon aurolineatus (Mowbray in Breder, 1927) -- valid -- bridle cardinalfish, cardenal frenado
  Apogon binotatus (Poey, 1867) -- valid -- barred cardinalfish, cardenal barreado, cardenal rayado
  Apogon dovii Günther, 1861 -- valid -- cardenal colimanchada, tailspot cardinalfish
  Apogon evermanni Jordan and Snyder, 1904 -- valid -- cardenal coralero, oddscale cardinalfish, oddscaled cardinalfish
  Apogon gouldi Smith-Vaniz, 1977 -- valid -- cardenal de lo alto, deepwater cardinalfish
  Apogon guadalupensis (Osburn and Nichols, 1916) -- valid -- cardenal mexicano, Guadaloupe cardinalfish, Guadalupe cardinalfish
  Apogon lachneri Böhlke, 1959 -- valid -- cardenal estrella blanca, whitestar cardinalfish
  Apogon leptocaulus Gilbert, 1972 -- valid -- slendertail cardinalfish
  Apogon maculatus (Poey, 1860) -- valid -- cardenal manchado, flamefish, saddletailed cardinalfish
  Apogon pacificus (Herre, 1935) -- valid -- cardenal morro listado, pink cardinalfish
  Apogon phenax Böhlke and Randall, 1968 -- valid -- cardenal mimético, mimic cardinalfish
  Apogon pillionatus Böhlke and Randall, 1968 -- valid -- broadsaddle cardinalfish, cardenal colirrayada
  Apogon planifrons Longley and Hildebrand, 1940 -- valid -- cardenal pálido, pale cardinalfish
  Apogon pseudomaculatus Longley, 1932 -- valid -- cardenal de dos puntos, cardenal dos puntos, twospot cardinalfish
  Apogon quadrisquamatus Longley, 1934 -- valid -- cardenal espinoso, sawcheek cardinalfish
  Apogon retrosella (Gill, 1862) -- valid -- barspot cardinalfish, cardenal de Cortés, Cortez cardinalfish
  Apogon townsendi (Breder, 1927) -- valid -- belted cardinalfish, cardenal cincho, cardenal con cinto
  Apogonidae -- valid -- apogonidés, cardenales, cardinalfishes, poissons-cardinaux
  Apristurus brunneus (Gilbert, 1892) -- valid -- brown cat shark, pejegato marrón
  Aprognathodon platyventris Böhlke, 1967 -- valid -- stripe eel
  Apsilus dentatus Guichenot, 1853 -- valid -- arnillo, black snapper, pargo lamparita
  Apterichtus ansp (Böhlke, 1968) -- valid -- academy eel
  Apterichtus equatorialis (Myers and Wade, 1941) -- valid -- equatorial eel, tieso ecuatorial
  Apterichtus kendalli (Gilbert, 1891) -- valid -- finless eel
  Aptocyclus ventricosus (Pallas, 1769) -- valid -- smooth lumpsucker
  Archistes biseriatus (Gilbert and Burke, 1912) -- valid -- scaled sculpin
  Archoplites interruptus (Girard, 1854) -- valid -- Sacramento perch
  Archosargus probatocephalus (Walbaum, 1792) -- valid -- sargo chopa, sheepshead
  Archosargus rhomboidalis (Linnaeus, 1758) -- valid -- salema, sargo amarillo, sea bream
  Arcos erythrops (Jordan and Gilbert, 1882) -- valid -- chupapiedra de cantil, rockwall clingfish
  Arcos macrophthalmus (Günther, 1861) -- valid -- chupapiedra acojinada, padded clingfish
  Arctogadus borisovi Dryagin, 1932 -- valid -- east Siberian cod, toothed cod
  Arctogadus glacialis (Peters, 1872) -- valid -- Arctic cod, polar cod
  Arctoscopus japonicus (Steindachner, 1881) -- valid -- sailfin sandfish
  Arctozenus risso (Bonaparte, 1840) -- valid -- lussion blanc, white barracudina
  Argentina sialis Gilbert, 1890 -- valid -- argentina del Pacífico, Pacific argentine
  Argentina silus (Ascanius, 1775) -- valid -- Atlantic argentine, grande argentine
  Argentina striata Goode and Bean, 1896 -- valid -- argentina, argentina estriada, striated argentine
  Argentinidae -- valid -- argentinas, argentines, argentines, herring smelts
  Ariidae Bleeker, 1862 -- valid -- bagres marinos, fork-tailed catfishes, poissons-chats marins, sea catfishes
  Ariomma bondi Fowler, 1930 -- valid -- pastorcillo lucia, pastorcillo lucía, silver-rag
  Ariomma melanum (Ginsburg, 1954) -- valid -- brown driftfish, pastorcillo café
  Ariomma regulus (Poey, 1868) -- valid -- pastorcillo aquillado, spotted driftfish
  Ariommatidae -- valid -- ariommatids, pastorcillos, poissons pailletés
  Ariopsis assimilis (Günther, 1864) -- valid -- bagre maya, Maya sea catfish
  Ariopsis dasycephalus (Günther, 1864) -- invalid -- bagre barrigón, bigbelly sea catfish
  Ariopsis felis (Linnaeus, 1766) -- valid -- bagre boca chica, hardhead catfish
  Ariopsis guatemalensis (Günther, 1864) -- valid -- bagre cuatete, widehead sea catfish
  Ariopsis kessleri (Steindachner, 1877) -- invalid -- bagre esculpido, sculptured sea catfish
  Ariopsis planiceps (Steindachner, 1877) -- invalid -- bagre cabeza chata, flathead sea catfish
  Ariopsis platypogon (Günther, 1864) -- invalid -- bagre cominate, cominate sea catfish
  Ariopsis seemanni (Günther, 1864) -- valid -- bagre tete, tete sea catfish
  Ariosoma anale (Poey, 1860) -- valid -- congrio estirado, longtrunk conger
  Ariosoma balearicum (Delaroche, 1809) -- valid -- bandtooth conger, congrio algino, congrio balear
  Ariosoma gilberti (Ogilby, 1898) -- valid -- congrio narigón, sharpnose conger
  Arothron hispidus (Linnaeus, 1758) -- valid -- botete panza rayada, poison puffer, stripebelly puffer, Stripebelly Puffer
  Arothron meleagris (Anonymous, 1798) -- valid -- 'opu hue, botete aletas punteadas, guineafowl puffer, Guineafowl Puffer
  Artediellus atlanticus Jordan and Evermann, 1898 -- valid -- Atlantic hookear sculpin, hameçon atlantique
  Artediellus gomojunovi Taranetz, 1933 -- valid -- Gomojunov's hookear sculpin, spinyhook sculpin
  Artediellus ochotensis Gilbert and Burke, 1912 -- valid -- Okhotsk hookear sculpin
  Artediellus pacificus Gilbert, 1896 -- valid -- hookhorn sculpin, hookhorned sculpin
  Artediellus scaber Knipowitsch, 1907 -- valid -- hamecon, rough hookear sculpin
  Artediellus uncinatus (Reinhardt, 1834) -- valid -- Arctic hookear sculpin, hameçon neigeux
  Artedius corallinus (Hubbs, 1926) -- valid -- charrasco coralino, coralline sculpin
  Artedius fenestralis Jordan and Gilbert, 1883 -- valid -- padded sculpin
  Artedius harringtoni (Starks, 1896) -- valid -- scalyhead sculpin
  Artedius lateralis (Girard, 1854) -- valid -- charrasco cabeza lisa, smoothhead sculpin
  Artedius notospilotus Girard, 1856 -- valid -- bonehead sculpin, bonyhead sculpin, charrasco huesudo
  Aruma histrio (Jordan, 1884) -- valid -- gobio lento, slow goby
  Ascelichthys rhodorus Jordan and Gilbert, 1880 -- valid -- rosylip sculpin
  Asemichthys taylori Gilbert, 1912 -- valid -- spinynose sculpin
  Aseraggodes herrei Seale, 1940 -- valid -- reticulated sole, Reticulated Sole, sol reticulado
  Aspidophoroides monopterygius (Bloch, 1786) -- valid -- alligatorfish, poisson-alligator atlantique
  Aspistor kessleri (Steindachner, 1877) -- valid -- bagre esculpido, sculptured sea catfish
  Aspistor planiceps (Steindachner, 1877) -- valid -- bagre cabeza chata, flathead sea catfish
  Aspistor platypogon (Günther, 1864) -- valid -- bagre cominate, cominate sea catfish
  Assurger anzac (Alexander, 1917) -- valid -- razorback scabbardfish, sable aserrado
  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 -- cardenal del cobo, conchfish
  Astronotus ocellatus (Agassiz in Spix and Agassiz, 1831) -- valid -- oscar
  Astroscopus guttatus Abbott, 1860 -- valid -- northern stargazer
  Astroscopus y-graecum (Cuvier in Cuvier and Valenciennes, 1829) -- valid -- miracielo del sureste, southern stargazer
  Astroscopus zephyreus Gilbert and Starks in Gilbert, 1897 -- valid -- miracielo perro, Pacific stargazer
  Astyanax armandoi Lozano-Vilano and Contreras-Balderas, 1990 -- valid -- Penjamo tetra, sardinita de Pénjamo
  Astyanax mexicanus (De Filippi, 1853) -- valid -- Mexican tetra, sardinita mexicana
  Ataeniobius toweri (Meek, 1904) -- valid -- bluetail goodea, bluetail splitfin, mexcalpique cola azul, striped goodea
  Atheresthes evermanni Jordan & Starks, 1904 -- valid -- Kamchatka flounder, Kamchatka Flounder
  Atheresthes stomias (Jordan & Gilbert, 1880) -- valid -- arrowtooth flounder, Arrowtooth Flounder, plie à grande bouche
  Atherinella alvarezi (Diaz-Pardo, 1972) -- valid -- Gulf silverside, plateadito de Tacotalpa
  Atherinella ammophila Chernoff and Miller, 1984 -- valid -- La Palma silverside, plateadito de La Palma
  Atherinella balsana (Meek, 1902) -- valid -- Balsas silverside, plateadito del Balsas
  Atherinella callida Chernoff, 1986 -- valid -- cunning silverside, plateadito del Refugio
  Atherinella crystallina (Jordan and Culver in Jordan, 1895) -- valid -- blackfin silverside, plateadito del Presidio
  Atherinella elegans Chernoff, 1986 -- valid -- Fuerte silverside, plateadito del Fuerte
  Atherinella eriarcha Jordan and Gilbert, 1882 -- valid -- longfin silverside, plateadito plateado
  Atherinella guatemalensis (Günther, 1864) -- valid -- peppered silverside, plateadito de Huamuchal
  Atherinella lisa (Meek, 1904) -- valid -- naked silverside, plateadito del Hule
  Atherinella marvelae (Chernoff and Miller, 1982) -- valid -- Eyipantla silverside, plateadito de Eyipantla
  Atherinella nepenthe (Myers and Wade, 1942) -- valid -- pitcher silverside, plateadito marino
  Atherinella sallei (Regan, 1903) -- valid -- large-eye silverside, plateadito del Papaloapan
  Atherinella schultzi (Alvarez and Carranza, 1952) -- valid -- Chimalapa silverside, plateadito de Chimalapa
  Atherinidae -- valid -- athérines, Old World silversides, silversides, tinícalos
  Atherinomorus stipes (Müller and Troschel in Schomburgk, 1848) -- valid -- cabezote, hardhead silverside, tinícalo cabezón
  Atherinops affinis (Ayres, 1860) -- valid -- pejerrey pescadillo, topsmelt
  Atherinopsidae -- valid -- charales y pejerreyes, New World silversides, poissons d'argent
  Atherinopsis californiensis Girard, 1854 -- valid -- jacksmelt, pejerrey mocho
  Atractoscion nobilis (Ayres, 1860) -- valid -- corvina cabaicucho, white seabass
  Atractosteus spatula (Lacepède, 1803) -- valid -- alligator gar, catán
  Atractosteus tropicus Gill, 1863 -- valid -- pejelagarto, tropical gar
  Aulopidae -- valid -- aulópidos, flagfins, limberts
  Aulopiformes -- valid -- aulopiforms, salmons
  Aulopus bajacali Parin and Kotlyar, 1984 -- valid -- eastern Pacific flagfin, lagarto del Pacífico oriental
  Aulopus filamentosus (Bloch, 1792) -- valid -- aulopus amarillento, yellowfin aulopus
  Aulorhynchidae -- valid -- trompes, trompudos, tube-snouts, tubenoses, tubesnouts
  Aulorhynchus flavidus Gill, 1861 -- valid -- trompudo sargacero, tube-snout, tubesnout
  Aulostomidae -- valid -- cornetfishes, trompetas, trompettes, trumpetfishes
  Aulostomus chinensis (Linnaeus, 1766) -- valid -- Chinese trumpetfish, painted flute mouth, painted flute mouth, trompeta china
  Aulostomus maculatus Valenciennes, 1837 -- valid -- Atlantic trumpetfish, trompa, trompeta del Atlántico, trumpetfish
  Auxis rochei (Risso, 1810) -- valid -- bonitou, bullet mackerel, bullet tuna, long corseletted frigate mackerel, melvera
  Auxis thazard (Lacepède, 1800) -- valid -- auxide, frigate mackerel, frigate tuna, melva
  Awaous banana (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- gobio de río, river goby, yellow river goby
  Axoclinus lucillae Fowler, 1944 -- valid -- Panamic triplefin, tres aletas bigote
  Axoclinus multicinctus Allen and Robertson, 1992 -- valid -- multibarred triplefin, tres aletas listado
  Axoclinus nigricaudus Allen and Robertson, 1991 -- valid -- Cortez triplefin, tres aletas colinegra
  Aztecula sallaei (Günther, 1868) -- valid -- Aztec chub, carpita azteca
  Azurina hirundo Jordan and McGregor in Jordan and Evermann, 1898 -- valid -- castañuela golondrina, swallow damselfish
  Bagre marinus (Mitchill, 1815) -- valid -- bagre, bagre bandera, gafftopsail catfish
  Bagre panamensis (Gill, 1863) -- valid -- bagre chihuil, chihuil
  Bagre pinnimaculatus (Steindachner, 1877) -- valid -- bagre barbón, long-barbeled sea catfish
  Bairdiella armata Gill, 1863 -- valid -- armed croaker, ronco armado
  Bairdiella batabana (Poey, 1860) -- invalid -- blue croaker, ronco azul
  Bairdiella chrysoura (Lacepède, 1802) -- valid -- ronco amarillo, silver perch
  Bairdiella ensifera (Jordan and Gilbert, 1882) -- valid -- ronco barbirrubia, swordspine croaker
  Bairdiella icistia (Jordan and Gilbert, 1882) -- valid -- bairdiella, corbineta, ronco roncacho
  Bairdiella ronchus (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- corvina espinosa, ground croaker, ground drummer, peacock bass, ronco, ronco rayado
  Bairdiella sanctaeluciae (Jordan, 1890) -- invalid -- corvina Santa Lucía, ronco caribeño, striped croaker
  Balistes capriscus Gmelin, 1789 -- valid -- baliste capri, cochino gris, Gray Triggerfish, gray triggerfish, pejepuerco blanco
  Balistes polylepis Steindachner, 1876 -- valid -- cochi, Finescale Triggerfish, finescale triggerfish
  Balistes vetula Linnaeus, 1758 -- valid -- baliste royal, cochino, queen triggerfish, Queen Triggerfish
  Balistidae -- valid -- balistes, cochitos, filefishes, triggerfishes
  Barbulifer antennatus Böhlke and Robins, 1968 -- valid -- barbulifer, barbulifer, gobio antenado, whiskered goby
  Barbulifer ceuthoecus (Jordan and Gilbert, 1884) -- valid -- bearded goby
  Barbulifer mexicanus Hoese and Larson, 1985 -- valid -- gobio alambrón, saddlebanded goby
  Barbulifer pantherinus (Pellegrin, 1901) -- valid -- gobio pantera, panther goby
  Bascanichthys bascanium (Jordan, 1884) -- valid -- sooty eel, tieso tiznado
  Bascanichthys bascanoides Osburn and Nichols, 1916 -- valid -- sooty sand eel, tieso manchitas
  Bascanichthys panamensis Meek and Hildebrand, 1923 -- valid -- Panamic sand eel, tieso panámico
  Bascanichthys scuticaris (Goode and Bean, 1880) -- valid -- safío pardo, whip eel
  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 mexicanus (Schultz, 1958) -- valid -- mero cola amarilla, yellowtail bass
  Bathycongrus bullisi (Smith and Kanazawa, 1977) -- valid -- bullish conger, congrio disparatado
  Bathycongrus dubius (Breder, 1927) -- valid -- dubious conger
  Bathycongrus macrurus (Gilbert, 1891) -- valid -- congrio cabeza corta, shorthead conger
  Bathycongrus varidens (Garman, 1899) -- valid -- congrio cabezón, largehead conger
  Bathycongrus vicinalis (Garman, 1899) -- valid -- congrio vecino, neighbor conger
  Bathygobius curacao (Metzelaar, 1919) -- valid -- gobio jaspeado, notchtongue goby
  Bathygobius mystacium Ginsburg, 1947 -- valid -- gobio bandeado, island frillfin
  Bathygobius ramosus Ginsburg, 1947 -- valid -- mapo panámico, Panamic frillfin
  Bathygobius soporator (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- frillfin goby, gobio mapo, mapo aguado
  Bathylagidae -- valid -- capellanes mesopelágicos, deep-sea smelts, deepsea smelts, garcettes
  Bathymaster caeruleofasciatus Gilbert and Burke, 1912 -- valid -- Alaskan ronquil
  Bathymaster leurolepis McPhail, 1965 -- valid -- smallmouth ronquil
  Bathymaster signatus Cope, 1873 -- valid -- searcher
  Bathymasteridae Jordan and Gilbert, 1883 -- valid -- roncos pelones, ronquilles, ronquils
  Bathyraja aleutica (Gilbert, 1896) -- valid -- Aleutian skate
  Bathyraja interrupta (Gill and Townsend, 1897) -- valid -- Bering skate, sandpaper skate
  Bathyraja lindbergi Ishiyama and Ishihara, 1977 -- valid -- Commander skate
  Bathyraja maculata Ishiyama and Ishihara, 1977 -- valid -- whiteblotched skate
  Bathyraja parmifera (Bean, 1881) -- valid -- Alaska skate
  Bathyraja spinicauda (Jensen, 1914) -- valid -- spinytail skate
  Bathyraja taranetzi (Dolganov, 1985) -- invalid -- mud skate
  Bathyraja violacea (Suvorov, 1935) -- valid -- Okhotsk skate
  Batrachoides gilberti Meek and Hildebrand, 1928 -- valid -- large-eye toadfish, sapo ojón
  Batrachoides goldmani Evermann and Goldsborough, 1902 -- valid -- Mexican freshwater toadfish, sapo mexicano
  Batrachoides waltersi Collette and Russo, 1981 -- valid -- multipored toadfish, sapo peludo
  Batrachoididae -- valid -- peces sapo, poissons-crapauds, toadfishes
  Batrachoidiformes -- valid -- batrachoidiforms
  Bellator brachychir (Regan, 1914) -- valid -- rubio aleticorta, shortfin searobin
  Bellator egretta (Goode and Bean, 1896) -- valid -- espátula bandera, rubio gallardete, streamer searobin
  Bellator gymnostethus (Gilbert, 1892) -- valid -- nakedbelly searobin, vaca enana
  Bellator loxias (Jordan in Gilbert, 1897) -- valid -- chevron searobin, vaca angelita
  Bellator militaris (Goode and Bean, 1896) -- valid -- horned searobin, rubio soldadito
  Bellator xenisma (Jordan and Bollman, 1890) -- valid -- splitnose searobin, vaca doble hocico
  Belonesox belizanus Kner, 1860 -- valid -- picudito, pike killifish, piketop minnow
  Belonidae -- valid -- agujones, aiguillettes, needlefishes
  Belontiidae Liem, 1963 -- invalid -- gouramies, gouramies, guramis, labyrinthfishes
  Bembrops anatirostris Ginsburg, 1955 -- valid -- duckbill flathead, longnose duckbill, pico de pato
  Bembrops gobioides (Goode, 1880) -- valid -- goby duckbill, goby flathead, pico de pala
  Benthalbella dentata (Chapman, 1939) -- valid -- northern pearleye, perlado norteño
  Benthodesmus pacificus Parin and Becker, 1970 -- valid -- cintilla del Pacífico, North Pacific frostfish
  Benthodesmus simonyi (Steindachner, 1891) -- valid -- cintilla del Atlántico, cutlassfish, frostfish, North Atlantic frostfish, Simony's frostfish
  Benthosema glaciale (Reinhardt, 1837) -- valid -- glacier lanterfish, glacier lanternfish, lanterne glaciaire
  Berycidae -- valid -- alfonsinos, alfonsinos, berycids, béryx
  Beryx decadactylus Cuvier in Cuvier and Valenciennes, 1829 -- valid -- alfonsino, broad alfonsino, red bream
  Blenniidae -- valid -- blennidés, blennies, blennies, blennies à dents de peigne, borrachos, combtooth blennies, gonelles, papillons de mer, scaleless blennies
  Blepsias bilobus Cuvier in Cuvier and Valenciennes, 1829 -- valid -- crested sculpin
  Blepsias cirrhosus (Pallas, 1814) -- valid -- silverspotted sculpin
  Bodianus diplotaenia (Gill, 1862) -- valid -- Mexican hogfish, Pacific hogfish, vieja mexicana
  Bodianus pulchellus (Poey, 1860) -- valid -- pez perro de cola amarilla, spotfin hogfish, vieja lomo negro
  Bodianus rufus (Linnaeus, 1758) -- valid -- pez perro español, Spanish hogfish, vieja española
  Bollmannia boqueronensis Evermann and Marsh, 1899 -- valid -- white-eye goby
  Bollmannia communis Ginsburg, 1942 -- valid -- gobio andrajoso, ragged goby
  Bollmannia eigenmanni (Garman, 1896) -- valid -- shelf goby
  Bollmannia macropoma Gilbert, 1892 -- valid -- frailscale goby, gobio pedernal
  Bollmannia marginalis Ginsburg, 1939 -- valid -- apostrophe goby, gobio sellado
  Bollmannia ocellata Gilbert, 1892 -- valid -- gobio penacho, pennant goby
  Bollmannia stigmatura Gilbert, 1892 -- valid -- gobio colimanchado, tailspot goby
  Bollmannia umbrosa Ginsburg, 1939 -- valid -- dusky goby, gobio prieto
  Boreogadus saida (Lepechin, 1774) -- valid -- Arctic cod, polar cod, saida franc, saïda franc
  Bothidae -- valid -- lefteye flounders, lefteyed flounders, lenguados chuecos, turbots
  Bothragonus swanii (Steindachner, 1876) -- valid -- rockhead
  Bothrocara brunneum (Bean, 1890) -- valid -- twoline eelpout, viruela dos rayas
  Bothrocara pusillum (Bean, 1890) -- valid -- Alaska eelpout
  Bothus constellatus (Jordan in Jordan & Goss, 1889) -- valid -- lenguado hoja, Pacific eyed flounder, Pacific Eyed Flounder
  Bothus leopardinus (Günther, 1862) -- valid -- lenguado leopardo del Pacífico, Pacific leopard flounder, Pacific Leopard Flounder
  Bothus lunatus (Linnaeus, 1758) -- valid -- lenguado lunado, Peacock Flounder, peacock flounder
  Bothus mancus (Broussonet, 1782) -- valid -- lenguado tropical, Tropical Flounder, tropical flounder
  Bothus ocellatus (Agassiz in Spix & Agassiz, 1831) -- valid -- chueco playón, Eyed Flounder, eyed flounder, lenguado ocelado, plie oculée
  Bothus robinsi Topp & Hoff, 1972 -- valid -- chueco dos manchas, Twospot Flounder, twospot flounder
  Brachyistius frenatus Gill, 1862 -- valid -- kelp perch, mojarra sargacera
  Brachyrhaphis hartwegi Rosen and Bailey, 1963 -- valid -- guayacón de Soconusco, Soconusco gambusia
  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 japonica Hilgendorf, 1878 -- valid -- Pacific pomfret, tristón del Pacífico
  Brama orcini Cuvier in Cuvier and Valenciennes, 1831 -- valid -- bigtooth pomfret, tropical pomfret
  Bramidae -- valid -- castagnoles, pomfrets, tristones
  Bramocharax caballeroi Contreras-Balderas and Rivera-Teillery, 1985 -- valid -- Catemaco characin, pepesca de Catemaco
  Bregmaceros atlanticus Goode and Bean, 1886 -- valid -- antenna codlet, bacalete antena, ciliado
  Bregmaceros bathymaster Jordan and Bollman, 1890 -- valid -- bacalete del Pacífico oriental, East Pacific codlet
  Bregmaceros cantori Milliken and Houde, 1984 -- valid -- bacalete rayado, striped codlet
  Bregmaceros houdei Saksena and Richards, 1986 -- valid -- stellate codlet
  Bregmacerotidae Gill, 1872 -- valid -- bacaletes, bregmacerotid codfishes, codlets, varlets
  Brevoortia gunteri Hildebrand, 1948 -- valid -- finescale menhaden, sardina escamitas
  Brevoortia patronus Goode, 1878 -- valid -- Gulf menhaden, largescale menhaden, sardina lacha
  Brevoortia smithi Hildebrand, 1941 -- valid -- yellowfin menhaden
  Brevoortia tyrannus (Latrobe, 1802) -- valid -- alose tyran, Atlantic menhaden, bugfish, bunker, fatback, menhaden, mossbunker
  Brosme brosme (Ascanius, 1772) -- valid -- brosme, cusk, torsk, tusk
  Brosmophycis marginata (Ayres, 1854) -- valid -- brótula roja, red brotula
  Brotula barbata (Bloch and Schneider, 1801) -- valid -- Atlantic bearded brotula, bearded brotula, brótula, brótula barbona
  Brotula clarkae Hubbs, 1944 -- valid -- lengua rosada, Pacific bearded brotula
  Brotula ordwayi Hildebrand and Barton, 1949 -- valid -- fore-spotted brotula, lengua pintada
  Brycon guatemalensis Regan, 1908 -- valid -- macabi tetra, sardinita macabí
  Bryozoichthys lysimus (Jordan and Snyder, 1902) -- valid -- nutcracker prickleback
  Bryozoichthys marjorius McPhail, 1970 -- valid -- pearly prickleback
  Bryx dunckeri (Metzelaar, 1919) -- valid -- pez pipa ñato, pugnose pipefish, trompetero nariz-corto
  Bryx veleronis Herald, 1940 -- valid -- offshore pipefish, pez pipa velero
  Bythitidae -- valid -- brotulas, brótulas vivíparas, donzelles vivipares, viviparous brotulas
  Caelorinchus caelorhincus (Risso, 1810) -- valid -- granadero tristón, grenadier acorazado, grenadier raton, hollowsnout grenadier, saddled grenadier
  Caelorinchus caribbaeus (Goode and Bean, 1885) -- valid -- blackfin grenadier, granadero alinegro, granadero caribeño
  Caelorinchus scaphopsis (Gilbert, 1890) -- valid -- granadero carepala, shoulderspot grenadier
  Calamopteryx goslinei Böhlke and Cohen, 1966 -- valid -- brótula aletona, longarm brotula
  Calamopteryx robinsorum Cohen, 1973 -- valid -- brótula del profesor, teacher brotula
  Calamus arctifrons Goode and Bean, 1882 -- valid -- grass porgy
  Calamus bajonado (Bloch and Schneider, 1801) -- valid -- bajonao violáceo, jolthead porgy, pluma
  Calamus brachysomus (Lockington, 1880) -- valid -- Pacific porgy, pluma marotilla
  Calamus calamus (Valenciennes in Cuvier and Valenciennes, 1830) -- valid -- pez de pluma, saucereye porgy
  Calamus campechanus Randall and Caldwell, 1966 -- valid -- Campeche porgy, pluma campechana
  Calamus leucosteus Jordan and Gilbert in Jordan, 1885 -- valid -- pluma golfina, whitebone porgy
  Calamus nodosus Randall and Caldwell, 1966 -- valid -- knobbed porgy, mojarrón pecoso
  Calamus penna (Valenciennes in Cuvier and Valenciennes, 1830) -- valid -- pez de pluma manchado, pluma manchada, sheepshead porgy
  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
  Callechelys bilinearis Kanazawa, 1952 -- valid -- tieso dos rayas, twostripe snake eel
  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 guineensis (Osório, 1893) -- valid -- shorttail snake eel, tieso colicorta
  Callechelys muraena Jordan and Evermann, 1887 -- valid -- blotched snake eel, tieso moteado
  Callechelys springeri (Ginsburg, 1951) -- valid -- ridgefin eel
  Callichthyidae Bonaparte, 1838 -- valid -- armored catfishes, callichthyid armored catfishes, coridoras, mailed catfishes, plated catfishes, poissons-chats cuirassés
  Callionymidae -- valid -- dragoncillos, dragonets, dragonnets, scotter blennies
  Calotomus carolinus (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- pococho perico, stareye parrotfish, stareyed parrotfish
  Campostoma anomalum (Rafinesque, 1820) -- valid -- central stoneroller, rodapiedras del centro
  Campostoma anomalum pullum (Agassiz, 1854) -- valid
  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
  Cantherhines dumerilii (Hollard, 1854) -- valid -- barred filefish, Barred Filefish, lija vagabunda
  Cantherhines macrocerus (Hollard in Guichenot, 1853) -- valid -- lija de lunares blancos, Whitespotted Filefish, whitespotted filefish
  Cantherhines pullus (Ranzani, 1842) -- valid -- lija colorada, Orangespotted Filefish, orangespotted filefish
  Canthidermis maculata (Bloch, 1786) -- valid -- cochito manchado, Rough Triggerfish, rough triggerfish, sobaco manchado
  Canthidermis sufflamen (Mitchill, 1815) -- valid -- lija, ocean triggerfish, Ocean Triggerfish, sobaco lija
  Canthigaster jamestyleri Moura & Castro, 2002 -- valid -- goldface toby, Goldface Toby
  Canthigaster punctatissima (Günther, 1870) -- valid -- botete bonito, spotted sharpnose puffer, Spotted Sharpnose Puffer
  Canthigaster rostrata (Bloch, 1786) -- valid -- sharpnose puffer, Sharpnose Puffer, tamboril narizón, tamborín narizón
  Caproidae -- valid -- boarfishes, cuckoos, sangliers, verracos
  Caralophia loxochila Böhlke, 1955 -- valid -- slantlip eel
  Carangidae -- valid -- carangues, jacks, jureles y pámpanos, pampanos, pompanos, saurels
  Caranx bartholomaei Cuvier in Cuvier and Valenciennes, 1833 -- invalid -- cojinuda amarilla, yellow jack
  Caranx caballus Günther, 1868 -- valid -- green jack, jurel bonito
  Caranx caninus Günther, 1867 -- valid -- jurel toro, Pacific crevalle jack
  Caranx crysos (Mitchill, 1815) -- valid -- blue runner, cojinúa, cojinuda negra
  Caranx dentex (Bloch and Schneider, 1801) -- invalid -- underjaw kingfish, white trevally
  Caranx hippos (Linnaeus, 1766) -- valid -- crevalle jack, jiguagua, jurel común
  Caranx latus Agassiz in Spix and Agassiz, 1831 -- valid -- gallego, horse-eye jack, jurel blanco
  Caranx lugubris Poey, 1860 -- valid -- black jack, jurel negro, tiñosa
  Caranx melampygus Cuvier in Cuvier and Valenciennes, 1833 -- valid -- black ulua, bluefin trevally, jurel aleta azul
  Caranx otrynter Jordan and Gilbert, 1883 -- invalid -- jurel chicuaca, threadfin jack
  Caranx ruber (Bloch, 1793) -- invalid -- bar jack, cibí carbonero, cojinuda carbonera
  Caranx sexfasciatus Quoy and Gaimard, 1825 -- valid -- bigeye trevally, great trevally, jurel voraz
  Caranx vinctus Jordan and Gilbert, 1882 -- valid -- cocinera, cocinera, cocinero, cocinero
  Carapidae -- valid -- aurins, pearlfishes, perleros
  Carapus bermudensis (Jones, 1874) -- valid -- Atlantic pearlfish, fierásfer, pearlfish, perlero del Atlántico
  Carapus dubius (Putnam, 1874) -- valid -- Pacific pearlfish, perlero del Pacífico
  Carassius auratus (Linnaeus, 1758) -- valid -- carassin, carpa dorada, goldfish
  Carcharhinidae Jordan and Evermann, 1896 -- valid -- mangeurs d'hommes, requiem sharks, tiburones gambuso
  Carcharhinus acronotus (Poey, 1860) -- valid -- blacknose shark, tiburón cangüay, tiburón limón
  Carcharhinus albimarginatus (Rüppell, 1837) -- valid -- silvertip shark, tiburón puntas blancas
  Carcharhinus altimus (Springer, 1950) -- valid -- baboso, bignose shark, tiburón narizón
  Carcharhinus brachyurus (Günther, 1870) -- valid -- bronze whaler, copper shark, narrowtooth shark, tiburón cobrizo
  Carcharhinus brevipinna (Müller and Henle, 1839) -- valid -- spinner shark, tiburón curro, tiburón de arrecife
  Carcharhinus falciformis (Müller and Henle, 1839) -- valid -- jaquetón, silky shark, tiburón piloto
  Carcharhinus galapagensis (Snodgrass and Heller, 1905) -- valid -- Galapagos shark, tiburón de Galápagos
  Carcharhinus isodon (Müller and Henle, 1839) -- valid -- finetooth shark, galano dientefino, tiburón dentiliso
  Carcharhinus leucas (Müller and Henle, 1839) -- valid -- bull shark, cabeza de batea, tiburón toro
  Carcharhinus limbatus (Müller and Henle, 1839) -- valid -- balicero, blacktip shark, tiburón volador
  Carcharhinus longimanus (Poey, 1861) -- valid -- galano, oceanic whitetip shark, tiburón oceánico
  Carcharhinus obscurus (Lesueur, 1818) -- valid -- dusky shark, tiburón amarillo, tiburón gambuso
  Carcharhinus perezii (Poey, 1876) -- valid -- cabeza dura, Caribbean reef shark, reef shark, tiburón coralino
  Carcharhinus plumbeus (Nardo, 1827) -- valid -- arenero, sandbar shark, tiburón aleta de cartón
  Carcharhinus porosus (Ranzani, 1839) -- valid -- smalltail shark, tiburón poroso
  Carcharhinus signatus (Poey, 1868) -- valid -- night shark, tiburón de noche, tiburón nocturno
  Carcharias taurus Rafinesque, 1810 -- valid -- sand tiger, sand tiger shark, tiburón arenero tigre, tigre arenero
  Carcharodon carcharias (Linnaeus, 1758) -- valid -- great white shark, jaquetón de ley, requin blanc, tiburón blanco, white shark
  Careproctus candidus Gilbert and Burke, 1912 -- valid -- bigeye snailfish
  Careproctus furcellus Gilbert and Burke, 1912 -- valid -- emarginate snailfish
  Careproctus gilberti Burke, 1912 -- valid -- smalldisk snailfish
  Careproctus longipinnis Burke, 1912 -- valid -- limace à longues nageoires, longfin snailfish
  Careproctus melanurus Gilbert, 1892 -- valid -- baboso colinegra, blacktail snailfish
  Careproctus ostentum Gilbert, 1896 -- valid -- microdisk snailfish
  Careproctus phasma Gilbert, 1896 -- valid -- spectral snailfish
  Careproctus rastrinus Gilbert and Burke, 1912 -- valid -- salmon snailfish
  Careproctus reinhardti (Krøyer, 1862) -- valid -- petite limace de mer, sea tadpole
  Careproctus scottae Chapman and DeLacy, 1934 -- valid -- peachskin snailfish
  Careproctus spectrum Bean, 1890 -- valid -- stippled snailfish
  Carlhubbsia kidderi (Hubbs, 1936) -- valid -- Champoton gambusia, guayacón de Champotón
  Carpiodes carpio (Rafinesque, 1820) -- valid -- matalote chato, river carpsucker
  Carpiodes cyprinus (Lesueur, 1817) -- valid -- couette, quillback, quillback carpsucker
  Carpiodes velifer (Rafinesque, 1820) -- valid -- highfin carpsucker
  Cathorops aguadulce (Meek, 1904) -- valid -- bagre aguadulce, estuarine sea catfish
  Cathorops dasycephalus (Günther, 1864) -- valid -- bagre barrigón, bigbelly sea catfish
  Cathorops fuerthii (Steindachner, 1877) -- valid -- bagre congo, congo sea catfish
  Cathorops melanopus (Günther, 1864) -- valid -- bagre prieto, dark sea catfish
  Cathorops spixii (Agassiz in Spix and Agassiz, 1829) -- valid -- bagre cuinchi, raspfin sea catfish
  Catostomidae -- valid -- catostomes, matalotes, suckers
  Catostomus ardens Jordan and Gilbert, 1881 -- valid -- Utah sucker
  Catostomus bernardini Girard, 1856 -- valid -- matalote yaqui, Yaqui sucker
  Catostomus cahita Siebert and Minckley, 1986 -- valid -- Cahita sucker, matalote cahita
  Catostomus catostomus (Forster, 1773) -- valid -- longnose sucker, meunier rouge
  Catostomus clarkii Baird and Girard, 1854 -- valid -- desert sucker, matalote del desierto
  Catostomus columbianus (Eigenmann and Eigenmann, 1893) -- valid -- bridgelip sucker
  Catostomus commersonii (Lacepède, 1803) -- valid -- meunier noir, white sucker
  Catostomus commersonnii (Lacepède, 1803) -- invalid -- meunier noir, white sucker
  Catostomus discobolus Cope, 1871 -- valid -- bluehead sucker
  Catostomus fumeiventris Miller, 1973 -- valid -- Owens sucker
  Catostomus insignis Baird and Girard, 1854 -- valid -- matalote de Sonora, Sonora sucker
  Catostomus latipinnis Baird and Girard, 1853 -- valid -- flannelmouth sucker
  Catostomus leopoldi Siebert and Minckley, 1986 -- valid -- Bavispe sucker, fleshylip sucker, matalote del Bavispe
  Catostomus macrocheilus Girard, 1856 -- valid -- largescale sucker
  Catostomus microps Rutter, 1908 -- valid -- Modoc sucker
  Catostomus nebuliferus Garman, 1881 -- valid -- matalote del Nazas, Nazas sucker
  Catostomus occidentalis Ayres, 1854 -- valid -- Sacramento sucker
  Catostomus platyrhynchus (Cope, 1874) -- valid -- mountain sucker
  Catostomus plebeius Baird and Girard, 1854 -- valid -- matalote del Bravo, Rio Grande sucker
  Catostomus rimiculus Gilbert and Snyder in Gilbert, 1898 -- valid -- Klamath smallscale sucker
  Catostomus santaanae (Snyder, 1908) -- valid -- Santa Ana sucker
  Catostomus snyderi Gilbert, 1898 -- valid -- Klamath largescale sucker
  Catostomus tahoensis Gill and Jordan in Jordan, 1878 -- valid -- Tahoe sucker
  Catostomus warnerensis Snyder, 1908 -- valid -- Warner sucker
  Catostomus wigginsi Herre and Brock in Herre, 1936 -- valid -- matalote opata, Opata sucker, Sonoran sucker
  Caulolatilus affinis Gill, 1865 -- valid -- conejo, Pacific golden-eyed tilefish
  Caulolatilus chrysops (Valenciennes in Cuvier and Valenciennes, 1833) -- valid -- blanquillo ojo amarillo, goldface tilefish, tumba dorada
  Caulolatilus cyanops Poey, 1866 -- valid -- blackline tilefish, domingo, tumba
  Caulolatilus hubbsi Dooley, 1978 -- valid -- blanquillo enigmático, enigmatic tilefish
  Caulolatilus intermedius Howell Rivero, 1936 -- valid -- anchor tilefish, blanquillo payaso, tumba parda
  Caulolatilus microps Goode and Bean, 1878 -- valid -- blanquillo lucio, blueline tilefish
  Caulolatilus princeps (Jenyns, 1840) -- valid -- ocean whitefish, pierna
  Cebidichthys violaceus (Girard, 1854) -- valid -- abrojo cara de mono, monkeyface prickleback
  Centrarchidae -- valid -- achigans et crapets, lobinas, sunfishes
  Centrarchus macropterus (Lacepède, 1801) -- valid -- flier, peacock sunfish, round sunfish
  Centrolophidae -- valid -- cojinobas, medusafishes, pompiles, rudderfishes
  Centrolophus medusophagus Cocco, 1839 -- invalid -- brown ruff
  Centrolophus niger (Gmelin, 1789) -- valid -- black ruff
  Centropomidae -- valid -- centropomes, robalos, snooks
  Centropomus armatus Gill, 1863 -- valid -- longspine snook, robalo espina larga
  Centropomus ensiferus Poey, 1860 -- valid -- robalo de espolón, róbalo espinoso, swordspine snook
  Centropomus medius Günther, 1864 -- valid -- blackfin snook, robalo aleta prieta
  Centropomus mexicanus Bocourt, 1868 -- valid -- Contantino snook, largescale fat snook, robalo gordo
  Centropomus nigrescens Günther, 1864 -- valid -- black snook, robalo negro, robalo prieto, robalo prieto
  Centropomus parallelus Poey, 1860 -- valid -- chucumite, fat snook, robalito, smallscale fat snook
  Centropomus pectinatus Poey, 1860 -- valid -- constantino, róbalo prieto, tarpon snook
  Centropomus poeyi Chávez, 1961 -- valid -- Mexican snook, robalo prieto
  Centropomus robalito Jordan and Gilbert, 1882 -- valid -- constantino, constantino, robalo aleta amarilla, yellowfin snook
  Centropomus undecimalis (Bloch, 1792) -- valid -- common snook, robalo blanco, róbalo común, snook
  Centropomus unionensis Bocourt, 1868 -- valid -- humpback snook, robalo serrano
  Centropomus viridis Lockington, 1877 -- valid -- robalo plateado, white snook
  Centropristis fuscula (Poey, 1861) -- valid -- serrano oliváceo, twospot sea bass
  Centropristis ocyurus (Jordan and Evermann, 1887) -- valid -- bank sea bass, cabrilla de banco
  Centropristis philadelphica (Linnaeus, 1758) -- valid -- cabrilla serrana, rock sea bass
  Centropristis striata (Linnaeus, 1758) -- valid -- black sea bass
  Centropyge argi Woods and Kanazawa, 1951 -- valid -- angelote pigmeo, cherubfish
  Centroscyllium fabricii (Reinhardt, 1825) -- valid -- aiguillat noir, black dogfish
  Centroscymnus coelolepis Barbosa du Bocage and Brito Capello, 1864 -- valid -- Portuguese dogfish, Portuguese shark, tiburón portugués
  Cephalaspidomorphi -- valid -- lampreys
  Cephalopholis cruentata (Lacepède, 1802) -- valid -- cherna enjambre, enjambre, graysby
  Cephalopholis fulva (Linnaeus, 1758) -- valid -- cabrilla roja, coney, guatívere
  Cephalopholis panamensis (Steindachner, 1877) -- valid -- cabrilla enjambre, Pacific graysby, Panama graysby
  Cephaloscyllium ventriosum (Garman, 1880) -- valid -- pejegato globo, swell shark
  Cephalurus cephalus (Gilbert, 1892) -- valid -- lollipop cat shark, lollipop catshark, pejegato renacuajo
  Ceratiidae -- valid -- deepsea anglerfishes, peces anzuelo, poissons-pêcheurs, seadevils
  Ceratoscopelus townsendi (Eigenmann and Eigenmann, 1889) -- valid -- diente de perro, dogtooth lampfish
  Cerdale floridana Longley, 1934 -- valid -- pugjaw wormfish
  Cetengraulis edentulus (Cuvier, 1829) -- valid -- anchoveta rabo amarillo, Atlantic anchoveta, bocon, bocón
  Cetengraulis mysticetus (Günther, 1867) -- valid -- anchoveta, anchoveta bocona, Pacific anchoveta
  Cetorhinidae Gill, 1862 -- valid -- basking shark, basking sharks, pèlerins, tiburones peregrino
  Cetorhinus maximus (Gunnerus, 1765) -- valid -- basking shark, pèlerin, pez elefante, tiburón peregrino
  Chaenomugil proboscideus (Günther, 1861) -- valid -- lisa hocicona, snouted mullet
  Chaenopsidae -- valid -- chaenopsidés, flag blennies, trambollos tubícolas, tube blennies
  Chaenopsis alepidota (Gilbert, 1890) -- valid -- orangethroat pikeblenny, tubícola lucio
  Chaenopsis coheni Böhlke, 1957 -- valid -- Cortez pikeblenny, tubícola picudo
  Chaenopsis limbaughi Robins and Randall, 1965 -- valid -- yellowface pikeblenny
  Chaenopsis ocellata Poey in Gill, 1865 -- valid -- bluethroat pikeblenny, sapito afilado, tubícola afilado
  Chaenopsis roseola Hastings and Shipp, 1981 -- valid -- freckled pikeblenny
  Chaetodipterus faber (Broussonet, 1782) -- valid -- Atlantic spadefish, Atlantic Spadefish, chabela, paguala
  Chaetodipterus zonatus (Girard, 1858) -- valid -- chambo, Pacific Spadefish, Pacific spadefish
  Chaetodon capistratus Linnaeus, 1758 -- valid -- foureye butterflyfish, mariposa ocelada, parche ocelado
  Chaetodon humeralis Günther, 1860 -- valid -- mariposa muñeca, muneca, threeband butterflyfish, threebanded butterflyfish
  Chaetodon ocellatus Bloch, 1787 -- valid -- mariposa perla amarilla, parche ocelado amarillo, spotfin butterflyfish
  Chaetodon sedentarius Poey, 1860 -- valid -- mariposa parche, parche mariposa, reef butterflyfish
  Chaetodon striatus Linnaeus, 1758 -- valid -- banded butterflyfish, mariposa rayada, parche rayado
  Chaetodontidae -- valid -- butterflyfishes, peces mariposa, poissons-papillons
  Chanidae -- valid -- chanos, milkfishes, sabalotes
  Channa marulius (Hamilton, 1822) -- valid -- bullseye snakehead
  Channidae -- valid -- cabezas de serpiente, snakeheads, têtes-de-serpent
  Channomuraena vittata (Richardson, 1845) -- valid -- broadbanded moray, morena cinturones, morena rara
  Chanos chanos (Forsskål, 1775) -- valid -- milkfish, sabalote
  Chapalichthys encaustus (Jordan and Snyder, 1899) -- valid -- barred splitfin, pintito de Ocotlán
  Chapalichthys pardalis Alvarez, 1963 -- valid -- pintito de Tocumbo, polka-dot splitfin
  Chapalichthys peraticus Alvarez, 1963 -- valid -- alien splitfin, pintito de San Juanico
  Characidae -- valid -- American characins, carácidos, characins, characins, charicidés, tetras, tétras
  Characodon audax Smith and Miller, 1986 -- valid -- bold characodon, mexcalpique del Toboso
  Characodon garmani Jordan and Evermann, 1898 -- valid -- mexcalpique de Parras, Parras characodon
  Characodon lateralis Günther, 1866 -- valid -- mexcalpique arcoiris, rainbow characodon
  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 muriei Miller and Smith, 1981 -- valid -- Snake River sucker
  Chasmodes bosquianus (Lacepède, 1800) -- valid -- striped blenny
  Chasmodes longimaxilla Williams, 1983 -- valid -- borracho bocón, stretchjaw blenny
  Chasmodes saburrae Jordan and Gilbert, 1882 -- valid -- Florida blenny
  Chauliodus macouni Bean, 1890 -- valid -- Pacific viperfish, víbora del Pacífico
  Chaunacidae -- valid -- coffinfishes, crapauds de mer, gapers, gómitas, sea toads
  Chaunax stigmaeus Fowler, 1946 -- valid -- redeye gaper
  Cheilopogon atrisignis (Jenkins, 1903) -- valid -- glider flyingfish, volador planeador
  Cheilopogon cyanopterus (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- margined flyingfish, volador azul, volador de borde oscuro
  Cheilopogon dorsomacula (Fowler, 1944) -- valid -- blackspot flyingfish, volador lomo manchado
  Cheilopogon exsiliens (Linnaeus, 1771) -- valid -- bandwing flyingfish, volador bandeado, volador campechano
  Cheilopogon furcatus (Mitchill, 1815) -- valid -- spotfin flyingfish, volador ala manchada
  Cheilopogon heterurus (Rafinesque, 1810) -- valid -- Atlantic flyingfish, blotchwing flyingfish, volador ala lunada
  Cheilopogon melanurus (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- Atlantic flyingfish, volador blanquito, volador de banda estrecha
  Cheilopogon papilio (Clark, 1936) -- valid -- butterfly flyingfish, volador mariposa
  Cheilopogon pinnatibarbatus (Bennett, 1831) -- valid -- great blacktailed flyingfish, smallhead flyingfish, spotted flyingfish, volador cabecita
  Cheilopogon spilonotopterus (Bleeker, 1866) -- valid -- stained flyingfish, volador jaspeado
  Cheilopogon xenopterus (Gilbert, 1890) -- valid -- volador puntas blancas, whitetip flyingfish
  Cheilotrema saturnum (Girard, 1858) -- valid -- black croaker, corvinata negra
  Chesnonia verrucosa (Lockington, 1880) -- valid -- warty poacher
  Chilara taylori (Girard, 1858) -- valid -- congriperla moteada, spotted cusk-eel
  Chiloconger dentatus (Garman, 1899) -- valid -- congrio labioso, thicklip conger
  Chilomycterus antennatus (Cuvier, 1816) -- valid -- bridled burrfish, Bridled Burrfish, guanábana manchada, pez erizo de riendas
  Chilomycterus antillarum Jordan & Rutter, 1897 -- valid -- guanábana antillana, guanábana caribeña, Web Burrfish, 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 -- burrfish, guanába rayada, guanábana rayada, porcupinefish, striped burrfish, Striped Burrfish
  Chilorhinus suensonii Lütken, 1852 -- valid -- anguililla bembona, morena falsa bembona, seagrass eel
  Chimaeridae Bonaparte, 1831 -- valid -- chimaeras, chimères, quimeras, ratfishes, shortnose chimaeras, shortnosed chimaeras
  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 snyderi (Taranetz, 1938) -- valid -- bearded warbonnet
  Chirolophis tarsodes (Jordan and Snyder, 1902) -- valid -- matcheek warbonnet
  Chirostoma aculeatum Barbour, 1973 -- valid -- charal cuchillo, scowling silverside
  Chirostoma arge (Jordan and Snyder, 1899) -- valid -- charal del Verde, largetooth silverside
  Chirostoma attenuatum Meek, 1902 -- valid -- charal prieto, slender silverside
  Chirostoma bartoni Jordan and Evermann, 1896 -- valid -- Alberca silverside, charal de la Caldera
  Chirostoma chapalae Jordan and Snyder, 1899 -- valid -- charal de Chapala, smallmouth silverside
  Chirostoma charari (de Buen, 1945) -- valid -- charal tarasco, least silverside
  Chirostoma consocium Jordan and Hubbs, 1919 -- valid -- charal de rancho, ranch silverside
  Chirostoma estor Jordan, 1880 -- valid -- pescado blanco, pike silverside
  Chirostoma grandocule (Steindachner, 1894) -- valid -- bigeye silverside, charal de lago
  Chirostoma humboldtianum (Valenciennes in Cuvier and Valenciennes, 1835) -- valid -- charal de Xochimilco, shortfin silverside
  Chirostoma jordani Woolman, 1894 -- valid -- charal, charal, mesa silverside
  Chirostoma labarcae Meek, 1902 -- valid -- charal de La Barca, sharpnose silverside
  Chirostoma lucius Boulenger, 1900 -- valid -- charal de la Laguna, longjaw silverside
  Chirostoma melanoccus Alvarez, 1963 -- valid -- blunthead silverside, charal de San Juanico
  Chirostoma mezquital Meek, 1904 -- invalid -- charal del Mezquital, Mezquital silverside
  Chirostoma patzcuaro Meek, 1902 -- valid -- charal pinto, Patzcuaro silverside
  Chirostoma promelas Jordan and Snyder, 1899 -- valid -- blacknose silverside, charal boca negra
  Chirostoma riojai Solórzano and López, 1966 -- valid -- charal de Santiago, Toluca silverside
  Chirostoma sphyraena Boulenger, 1900 -- valid -- bigmouth silverside, charal barracuda
  Chitala ornata (Gray, 1831) -- valid -- clown knifefish
  Chitonotus pugetensis (Steindachner, 1876) -- valid -- charrasco espalda rugosa, roughback sculpin
  Chlamydoselachidae Garman, 1884 -- valid -- frill sharks, frilled sharks, requins-lézards, tiburones anguila
  Chlamydoselachus anguineus Garman, 1884 -- valid -- frill shark, frilled shark, tiburón anguila
  Chlopsidae -- valid -- false morays, fausses murènes, morenas falsas
  Chlopsis apterus (Beebe and Tee-van, 1938) -- valid -- morena falsa hocico rayado, stripesnout false moray
  Chlopsis bicolor Rafinesque, 1810 -- valid -- bicolor eel
  Chlopsis dentatus (Seale, 1917) -- valid -- anguililla moteada, morena falsa dientona, mottled false moray
  Chlorophthalmidae -- valid -- greeneyes, ojiverdes, yeux-verts
  Chlorophthalmus agassizi Bonaparte, 1840 -- valid -- ojiverde chato, ojiverde ñato, shortnose greeneye
  Chloroscombrus chrysurus (Linnaeus, 1766) -- valid -- Atlantic bumper, casabe, horqueta del Atlántico
  Chloroscombrus orqueta Jordan and Gilbert, 1883 -- valid -- horqueta del Pacífico, Pacific bumper
  Chologaster cornuta Agassiz, 1853 -- valid -- swampfish
  Chriodorus atherinoides Goode and Bean, 1882 -- valid -- hardhead halfbeak, pajarito cabezidura, pejerrey
  Chriolepis benthonis Ginsburg, 1953 -- valid -- deepwater goby, gobio de agua profunda
  Chriolepis cuneata Bussing, 1990 -- valid -- gobio carril, rail goby
  Chriolepis minutillus Gilbert, 1892 -- valid -- gobio conchalero, rubble goby
  Chriolepis vespa Hastings and Bortone, 1981 -- valid -- wasp goby
  Chriolepis zebra Ginsburg, 1938 -- valid -- gecko goby, gobio salamanquesa
  Chromis alta Greenfield and Woods, 1980 -- valid -- castañeta alta, silverstripe chromis
  Chromis atrilobata Gill, 1862 -- valid -- Castañeta, castañeta cola de tijera, scissortail chromis
  Chromis cyanea (Poey, 1860) -- valid -- blue chromis, castañeta azul, cromis azul
  Chromis enchrysura Jordan and Gilbert, 1882 -- valid -- castañeta coliamarilla, yellowtail reeffish
  Chromis insolata (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- castañeta sol, cromis sol, sunshinefish
  Chromis limbaughi Greenfield and Woods, 1980 -- valid -- blue-and-yellow chromis, castañeta mexicana
  Chromis multilineata (Guichenot, 1853) -- valid -- brown chromis, castañeta parda, cromis prieto
  Chromis punctipinnis (Cooper, 1863) -- valid -- blacksmith, castañeta herrera
  Chromis scotti Emery, 1968 -- valid -- castañeta púrpura, cromis púrpura, purple reeffish
  Cichla ocellaris Bloch and Schneider, 1801 -- valid -- butterfly peacock bass, peacock cichlid
  Cichlasoma beani (Jordan, 1889) -- valid -- green guapote, mojarra de Sinaloa, Sinaloa cichlid
  Cichlasoma bimaculatum (Linnaeus, 1758) -- valid -- black acara, twospotted cichlid
  Cichlasoma citrinellum (Günther, 1864) -- invalid -- midas cichlid
  Cichlasoma cyanoguttatum (Baird and Girard, 1854) -- invalid -- mojarra del norte, Rio Grande cichlid, Rio Grande perch
  Cichlasoma friedrichsthalii (Heckel, 1840) -- invalid -- Friedrichsthal's cichlid, mojarra del San Juan, yellowjacket
  Cichlasoma grammodes Taylor and Miller, 1980 -- valid -- Chiapa de Corzo cichlid, mojarra del Chiapa de Corzo
  Cichlasoma istlanum (Jordan and Snyder, 1899) -- valid -- mojarra del Balsas, redside cichlid
  Cichlasoma managuense (Günther, 1867) -- invalid -- jaguar guapote, Managua cichlid, mojarra de Managua
  Cichlasoma meeki (Brind, 1918) -- invalid -- firemouth cichlid, mojarra boca de fuego
  Cichlasoma motaguense (Günther, 1867) -- invalid -- mojarra del Motagua, Motagua cichlid
  Cichlasoma nigrofasciatum (Günther, 1867) -- invalid -- convict cichlid, mojarra convicto, zebra cichlid
  Cichlasoma octofasciatum (Regan, 1903) -- invalid -- eightbanded cichlid, Jack Dempsey, mojarra castarrica
  Cichlasoma salvini (Günther, 1862) -- valid -- guapote tricolor, Salvin's cichlid, yellowbelly cichlid
  Cichlasoma spilurum (Günther, 1862) -- invalid -- blue-eye cichla, blue-eye cichlid, mojarra yucateca
  Cichlasoma trimaculatum (Günther, 1867) -- valid -- mojarra prieta, threespot cichlid
  Cichlasoma ufermanni (Allgayer, 2002) -- valid -- mojarra del Usumacinta, Usumacinta cichlid
  Cichlasoma urophthalmus (Günther, 1862) -- invalid -- Mayan cichlid, mojarra del sureste
  Cichlidae -- valid -- cichlidés, cichlids, tilapias y mojarras de agua dulce
  Ciliata septentrionalis (Collett, 1875) -- valid -- northern rockling
  Cirrhigaleus asper (Merrett, 1973) -- valid -- roughskin dogfish, roughskin dogshark, roughskin spurdog
  Cirrhitichthys oxycephalus (Bleeker, 1855) -- valid -- coral hawkfish, halcón de coral
  Cirrhitidae -- valid -- halcones, hawkfishes, poissons-éperviers
  Cirrhitus rivulatus Valenciennes, 1846 -- valid -- chino mero, giant hawkfish
  Cirriemblemaria lucasana (Stephens, 1963) -- valid -- plume blenny, tubícola plumoso
  Citharichthys abbotti Dawson, 1969 -- valid -- lenguado veracruzano, Veracruz whiff, Veracruz Whiff
  Citharichthys arctifrons Goode, 1880 -- valid -- Gulf Stream flounder, Gulf Stream Flounder, lenguado golfino, plie du gulf stream
  Citharichthys arenaceus Evermann & Marsh, 1900 -- valid -- lenguado arenero, Sand Whiff, sand whiff
  Citharichthys cornutus (Günther, 1880) -- valid -- horned whiff, Horned Whiff, lenguado cornudo
  Citharichthys dinoceros Goode & Bean, 1886 -- valid -- lenguado espinoso, spined whiff, Spined Whiff
  Citharichthys fragilis Gilbert, 1890 -- valid -- Gulf sanddab, Gulf Sanddab, lenguado flaco
  Citharichthys gilberti Jenkins & Evermann, 1889 -- valid -- bigmouth sanddab, Bigmouth Sanddab, lenguado tapadera
  Citharichthys gordae Beebe & Tee-Van, 1938 -- valid -- lenguado escondido, mimic sanddab, Mimic Sanddab
  Citharichthys gymnorhinus Gutherz & Blackman, 1970 -- valid -- anglefin whiff, Anglefin Whiff
  Citharichthys macrops Dresel, 1885 -- valid -- lenguado manchado, Spotted Whiff, spotted whiff
  Citharichthys mariajorisae van der Heiden & Mussot-Pérez, 1995 -- valid -- five-rayed sanddab, Five-rayed Sanddab, lenguado cinco radios
  Citharichthys platophrys Gilbert, 1891 -- valid -- lenguado frentón, small sanddab, Small Sanddab
  Citharichthys sordidus (Girard, 1854) -- valid -- lenguado moteado, limande sordide, Pacific Sanddab, Pacific sanddab
  Citharichthys spilopterus Günther, 1862 -- valid -- bay whiff, Bay Whiff, lenguado pardo
  Citharichthys stigmaeus Jordan & Gilbert, 1882 -- valid -- lenguado pecoso, limande tachetée, Speckled Sanddab, speckled sanddab
  Citharichthys uhleri Jordan in Jordan & Goss, 1889 -- valid -- lenguado albimoteado, voodoo whiff, Voodoo Whiff
  Citharichthys xanthostigma Gilbert, 1890 -- valid -- lenguado alón, Longfin Sanddab, longfin sanddab
  Clarias batrachus (Linnaeus, 1758) -- valid -- clarias catfish, walking catfish
  Clariidae Bonaparte, 1846 -- valid -- airbreathing catfishes, bagres laberintos, labyrinth catfishes, poissons-chats à labyrinths
  Clarkichthys bilineatus (Clark, 1936) -- valid -- flagtail wormfish, pez lombriz colibandera
  Clepticus parrae (Bloch and Schneider, 1801) -- valid -- creole wrasse, doncella mulata, rabirrubia genízara
  Clevelandia ios (Jordan and Gilbert, 1882) -- valid -- arrow goby, gobio flecha
  Clinidae -- valid -- cabillauds, clinides, clinids, clinies, kelp blennies, kelpfishes, klipfishes, sargaceros, scaled blennies
  Clinocottus acuticeps (Gilbert, 1896) -- valid -- sharpnose sculpin
  Clinocottus analis (Girard, 1858) -- valid -- charrasco lanudo, woolly sculpin
  Clinocottus embryum (Jordan and Starks, 1895) -- valid -- calico sculpin, charrasco angaripola
  Clinocottus globiceps (Girard, 1858) -- valid -- mosshead sculpin
  Clinocottus recalvus (Greeley, 1899) -- valid -- bald sculpin, charrasco pelón
  Clinostomus elongatus (Kirtland, 1840) -- valid -- redside dace
  Clinostomus funduloides Girard, 1856 -- valid -- rosyside dace
  Clupea harengus Linnaeus, 1758 -- valid -- Atlantic herring, Baltic herring, hareng atlantique, herring
  Clupea pallasii Valenciennes in Cuvier and Valenciennes, 1847 -- valid -- arenque del Pacífico, Pacific herring
  Clupeidae -- valid -- aloses, harengs, herrings, menhadens, pilchards, sardinas, sardines, sardines, shads, sprats, sprats
  Clupeiformes -- valid -- anchois, anchovies, harengs, herrings
  Cobitidae -- valid -- loaches, lochas, loches
  Cololabis saira (Brevoort, 1856) -- valid -- Pacific saury, paparda del Pacífico
  Colpichthys hubbsi Crabtree, 1989 -- valid -- delta silverside, pejerrey delta
  Colpichthys regis (Jenkins and Evermann, 1889) -- valid -- false grunion, pejerrey charal, pez del rey
  Conger oceanicus (Mitchill, 1818) -- valid -- conger eel
  Conger triporiceps Kanazawa, 1958 -- valid -- congrio dentudo, manytooth conger
  Congridae -- valid -- conger eels, congers, congres, congrios
  Conodon nobilis (Linnaeus, 1758) -- valid -- barred grunt, ronco canario
  Conodon serrifer Jordan and Gilbert, 1882 -- valid -- armed grunt, ronco ofensivo
  Cookeolus japonicus (Cuvier in Cuvier and Valenciennes, 1829) -- valid -- bulleye, catalufa aleta larga
  Coralliozetus angelicus (Böhlke and Mead, 1957) -- valid -- angel blenny, tubícola ángel
  Coralliozetus boehlkei Stephens, 1963 -- valid -- barcheek blenny, tubícola cachete rayado
  Coralliozetus micropes (Beebe and Tee-van, 1938) -- valid -- tubícola cara de cebra, zebraface blenny
  Coralliozetus rosenblatti Stephens, 1963 -- valid -- spikefin blenny, tubícola espiga
  Coregonus artedi Lesueur, 1818 -- valid -- cisco, cisco de lac, lake herring
  Coregonus autumnalis (Pallas, 1776) -- valid -- Arctic cisco
  Coregonus clupeaformis (Mitchill, 1818) -- valid -- grand corégone, lake whitefish
  Coregonus hoyi (Milner, 1874) -- valid -- bloater
  Coregonus huntsmani Scott, 1987 -- valid -- Acadian whitefish, Atlantic whitefish
  Coregonus johannae (Wagner, 1910) -- valid -- deepwater cisco
  Coregonus kiyi (Koelz, 1921) -- valid -- kiyi
  Coregonus laurettae Bean, 1881 -- valid -- Bering cisco
  Coregonus nasus (Pallas, 1776) -- valid -- broad whitefish
  Coregonus nigripinnis (Milner, 1874) -- valid -- blackfin cisco
  Coregonus pidschian (Gmelin, 1789) -- valid -- humpback whitefish
  Coregonus reighardi (Koelz, 1924) -- valid -- shortnose cisco
  Coregonus sardinella Valenciennes in Cuvier and Valenciennes, 1848 -- valid -- least cisco
  Coregonus zenithicus (Jordan and Evermann, 1909) -- valid -- longjaw cisco, shortjaw cisco
  Corniger spinosus Agassiz in Spix and Agassiz, 1831 -- valid -- candil espinoso, spinycheek soldierfish
  Corvula macrops (Steindachner, 1876) -- valid -- corvineta vacuoqua, vacoucua, vacoucua, vacuoqua croaker
  Coryphaena equiselis Linnaeus, 1758 -- valid -- dorado enano, pompano dolphin, pompano dolphinfish
  Coryphaena hippurus Linnaeus, 1758 -- valid -- dolphin, dolphinfish, dorado
  Coryphaenidae -- valid -- coryphènes, dolphinfishes, dolphins, dorados, dorados
  Coryphopterus alloides Böhlke and Robins, 1960 -- valid -- barfin goby
  Coryphopterus dicrus Böhlke and Robins, 1960 -- valid -- colon goby, gobio colón, gobio dos puntos
  Coryphopterus eidolon Böhlke and Robins, 1960 -- valid -- gobio pálido, pallid goby
  Coryphopterus glaucofraenum Gill, 1863 -- valid -- bridled goby, gobio con brida, gobio de riendas
  Coryphopterus hyalinus Böhlke and Robins, 1962 -- valid -- glass goby, gobio cristal, gobio de cristal
  Coryphopterus lipernes Böhlke and Robins, 1962 -- valid -- gobio linterna, peppermint goby
  Coryphopterus personatus (Jordan and Thompson, 1905) -- valid -- gobio enmascarado, gobio mapache, masked goby
  Coryphopterus punctipectophorus Springer, 1960 -- valid -- gobio punteado, spotted goby
  Coryphopterus thrix Böhlke and Robins, 1960 -- valid -- bartail goby, gobio listado
  Coryphopterus tortugae (Jordan, 1904) -- invalid -- sand goby
  Coryphopterus urospilus Ginsburg, 1938 -- valid -- gobio semáforo, redlight goby
  Cosmocampus albirostris (Kaup, 1856) -- valid -- pez pipa hocico blanco, whitenose pipefish
  Cosmocampus arctus (Jenkins and Evermann, 1889) -- valid -- pez pipa chato, snubnose pipefish
  Cosmocampus brachycephalus (Poey, 1868) -- valid -- crested pipefish, pez pipa crestado, trompetero ñato
  Cosmocampus elucens (Poey, 1868) -- valid -- pez pipa aletilla, shortfin pipefish, trompetero brillante
  Cosmocampus hildebrandi (Herald, 1965) -- valid -- dwarf pipefish
  Cosmocampus profundus (Herald, 1965) -- valid -- deepwater pipefish, pez pipa de lo alto
  Cottidae -- valid -- bullheads, chabots, chabots de mer, charrascos espinosos, scaleless sculpins, scorpions de mer, sculpins
  Cottunculus microps Collett, 1875 -- valid -- Arctic sculpin, cotte polaire, polar sculpin
  Cottus aleuticus Gilbert, 1896 -- valid -- coastrange sculpin
  Cottus asper Richardson, 1836 -- valid -- prickly sculpin
  Cottus asperrimus Rutter, 1908 -- valid -- rough sculpin
  Cottus baileyi Robins, 1961 -- valid -- black sculpin
  Cottus bairdii Girard, 1850 -- valid -- chabot tacheté, mottled sculpin
  Cottus beldingii Eigenmann and Eigenmann, 1891 -- valid -- Paiute sculpin
  Cottus bendirei (Bean, 1881) -- valid -- Malheur sculpin
  Cottus caeruleomentum Kinziger, Raesly and Neely, 2000 -- valid -- Blue Ridge sculpin
  Cottus carolinae (Gill, 1861) -- valid -- banded sculpin
  Cottus cognatus Richardson, 1836 -- valid -- chabot visqueux, slimy sculpin
  Cottus confusus Bailey and Bond, 1963 -- valid -- shorthead sculpin
  Cottus echinatus Bailey and Bond, 1963 -- valid -- Utah Lake sculpin
  Cottus extensus Bailey and Bond, 1963 -- valid -- Bear Lake sculpin
  Cottus girardi Robins, 1961 -- valid -- Potomac sculpin
  Cottus greenei (Gilbert and Culver in Jordan and Evermann, 1898) -- valid -- Shoshone sculpin
  Cottus gulosus (Girard, 1854) -- valid -- riffle sculpin
  Cottus hubbsi Bailey and Dimick, 1949 -- valid -- Columbia sculpin
  Cottus hypselurus Robins and Robison, 1985 -- valid -- Ozark sculpin, Wood River sculpin
  Cottus klamathensis Gilbert, 1898 -- valid -- marbled sculpin
  Cottus leiopomus Gilbert and Evermann, 1894 -- valid -- Wood River sculpin
  Cottus marginatus (Bean, 1881) -- valid -- margined sculpin
  Cottus paulus Williams, 2000 -- valid -- pygmy sculpin
  Cottus perplexus Gilbert and Evermann, 1894 -- valid -- reticulate sculpin
  Cottus pitensis Bailey and Bond, 1963 -- valid -- Pit sculpin
  Cottus princeps Gilbert, 1898 -- valid -- Klamath Lake sculpin
  Cottus rhotheus (Smith, 1882) -- valid -- torrent sculpin
  Cottus ricei (Nelson, 1876) -- valid -- chabot à tête plate, spoonhead sculpin
  Cottus tenuis (Evermann and Meek, 1898) -- valid -- slender sculpin
  Couesius plumbeus (Agassiz, 1850) -- valid -- lake chub, méné de lac
  Crenichthys baileyi (Gilbert, 1893) -- valid -- White River springfish
  Crenichthys nevadae Hubbs, 1932 -- valid -- Railroad Valley springfish
  Crocodilichthys gracilis Allen and Robertson, 1991 -- valid -- lagartija tres aletas, lizard triplefin
  Cryptacanthodes aleutensis (Gilbert, 1896) -- valid -- dwarf wrymouth
  Cryptacanthodes giganteus (Kittlitz, 1858) -- valid -- giant wrymouth
  Cryptacanthodes maculatus Storer, 1839 -- valid -- terrassier tacheté, terrassier tâcheté, wrymouth
  Cryptacanthodidae Gill, 1861 -- valid -- risueños, terrassiers, wrymouths
  Cryptopsaras couesii Gill, 1883 -- valid -- anzuelo diablo, diablo marino, pêcheur à trèfle, triplewart seadevil, warted seadevil
  Cryptotomus roseus Cope, 1871 -- valid -- bluelip parrotfish, loro bembiazul, loro chimuelo
  Cryptotrema corallinum Gilbert, 1890 -- valid -- deepwater blenny, trambollo de profundidad
  Cryptotrema seftoni Hubbs, 1954 -- valid -- hidden blenny, trambollo escondido
  Crystallaria asprella (Jordan, 1878) -- valid -- crystal darter
  Crystallichthys cyclospilus Gilbert and Burke, 1912 -- valid -- blotched snailfish
  Ctenogobius boleosoma (Jordan and Gilbert, 1882) -- valid -- darter goby, esmeralda flechera, madrejuile
  Ctenogobius claytonii (Meek, 1902) -- valid -- gobio mexicano, Mexican goby
  Ctenogobius fasciatus Gill, 1858 -- valid -- blackbar goby, blotchcheek goby
  Ctenogobius manglicola (Jordan and Starks in Jordan, 1895) -- valid -- gobio de manglar, mangrove goby
  Ctenogobius pseudofasciatus (Gilbert and Randall in Gilbert and Kelso, 1971) -- valid -- slashcheek goby
  Ctenogobius saepepallens (Gilbert and Randall, 1968) -- valid -- dash goby, gobio guión
  Ctenogobius sagittula (Günther, 1861) -- valid -- gobio aguzado, longtail goby
  Ctenogobius shufeldti (Jordan and Eigenmann, 1887) -- valid -- freshwater goby
  Ctenogobius smaragdus (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- emerald goby, esmeralda cabezona
  Ctenogobius stigmaticus (Poey, 1860) -- valid -- esmeralda, marked goby
  Ctenogobius stigmaturus (Goode and Bean, 1882) -- valid -- spottail goby
  Ctenopharyngodon idella (Valenciennes in Cuvier and Valenciennes, 1844) -- valid -- carpa herbívora, grass carp, silver orfe
  Cualac tessellatus Miller, 1956 -- valid -- cachorrito de la Media Luna, checkered pupfish, Media Luna pupfish
  Cubiceps capensis (Smith, 1845) -- valid -- Cape cigarfish, Cape fathead
  Cubiceps paradoxus Butler, 1979 -- valid -- derivante colón, longfin cigarfish
  Cubiceps pauciradiatus Günther, 1872 -- valid -- bigeye cigarfish, derivante ojón, longfin fathead
  Culaea inconstans (Kirtland, 1840) -- valid -- brook stickleback, épinoche à cinq épines
  Cycleptus elongatus (Lesueur, 1817) -- valid -- blue sucker, matalote azul
  Cycleptus meridionalis Burr and Mayden, 1999 -- valid -- southeastern blue sucker
  Cyclopsetta chittendeni Bean, 1895 -- valid -- lenguado mexicano, Mexican Flounder, Mexican flounder
  Cyclopsetta fimbriata (Goode & Bean, 1885) -- valid -- lenguado aleta sucia, Spotfin Flounder, spotfin flounder
  Cyclopsetta panamensis (Steindachner, 1876) -- valid -- lenguado panámico, Panamic flounder, Panamic Flounder
  Cyclopsetta querna (Jordan & Bollman, 1890) -- valid -- lenguado dientón, toothed flounder, Toothed Flounder
  Cyclopteridae -- valid -- lumpfishes, lumpsuckers, peces grumo, poules de mer, snailfishes
  Cyclopteropsis mcalpini (Fowler, 1914) -- valid -- Arctic lumpsucker
  Cyclopterus lumpus Linnaeus, 1758 -- valid -- grosse poule de mer, lumpfish
  Cymatogaster aggregata Gibbons, 1854 -- valid -- mojarra brillosa, shiner perch
  Cynoglossidae -- valid -- lenguas, soles-langues, tongue soles, tonguefishes
  Cynoponticus coniceps (Jordan and Gilbert, 1882) -- valid -- conehead eel, congrio espantoso
  Cynoscion albus (Günther, 1864) -- valid -- corvina chiapaneca, queen corvina, white corvina, white corvina
  Cynoscion arenarius Ginsburg, 1930 -- valid -- corvina arenera, sand seatrout
  Cynoscion jamaicensis (Vaillant and Bocourt, 1883) -- valid -- corvina jamaica, Jamaica weakfish, mongolar drummer, mongolar drummer
  Cynoscion nannus Castro-Aguirre and Arvizu-Martinez, 1976 -- valid -- corvina enana, dwarf corvina
  Cynoscion nebulosus (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- corvina pinta, spotted seatrout
  Cynoscion nothus (Holbrook, 1848) -- valid -- corvina plateada, silver seatrout
  Cynoscion othonopterus Jordan and Gilbert, 1882 -- valid -- corvina golfina, Gulf corvina
  Cynoscion parvipinnis Ayres, 1861 -- valid -- corvina aleta corta, shortfin corvina
  Cynoscion phoxocephalus Jordan and Gilbert, 1882 -- valid -- corvina picuda, sharpnose corvina
  Cynoscion regalis (Bloch and Schneider, 1801) -- valid -- gray trout, sea trout, weakfish
  Cynoscion reticulatus (Günther, 1864) -- valid -- corvina rayada, striped corvina, striped corvina
  Cynoscion squamipinnis (Günther, 1867) -- valid -- corvina aguada, scalyfin corvina
  Cynoscion stolzmanni (Steindachner, 1879) -- valid -- corvina coliamarilla, yellowtail corvina
  Cynoscion xanthulus Jordan and Gilbert, 1882 -- valid -- corvina boquinaranja, orangemouth corvina
  Cyprinella alvarezdelvillari Contreras-Balderas and Lozano-Vilano, 1994 -- valid -- carpita tepehuana, Tepehuan shiner
  Cyprinella analostana Girard, 1859 -- valid -- satinfin shiner
  Cyprinella bocagrande (Chernoff and Miller, 1982) -- valid -- carpita bocagrande, largemouth 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 galactura (Cope, 1868) -- valid -- whitetail shiner
  Cyprinella garmani (Jordan, 1885) -- valid -- carpita jorobada, gibbous shiner
  Cyprinella gibbsi (Howell and Williams, 1971) -- valid -- Tallapoosa shiner
  Cyprinella labrosa (Cope, 1870) -- valid -- thicklip chub, thicklip shiner
  Cyprinella leedsi (Fowler, 1942) -- valid -- bannerfin shiner
  Cyprinella lepida Girard, 1856 -- valid -- plateau shiner
  Cyprinella lutrensis (Baird and Girard, 1853) -- valid -- carpita roja, red shiner
  Cyprinella nivea (Cope, 1870) -- valid -- whitefin shiner
  Cyprinella ornata (Girard, 1856) -- valid -- carpita adornada, ornate shiner
  Cyprinella panarcys (Hubbs and Miller, 1978) -- valid -- carpita del Conchos, Conchos shiner
  Cyprinella proserpina (Girard, 1856) -- valid -- carpita río del norte, proserpine shiner
  Cyprinella pyrrhomelas (Cope, 1870) -- valid -- fieryblack shiner
  Cyprinella rutila (Girard, 1856) -- valid -- carpita regiomontana, Mexican red shiner
  Cyprinella spiloptera (Cope, 1867) -- valid -- méné bleu, spotfin shiner
  Cyprinella trichroistia (Jordan and Gilbert in Jordan and Brayton, 1878) -- valid -- tricolor shiner
  Cyprinella venusta Girard, 1856 -- valid -- blacktail shiner, carpita colinegra
  Cyprinella whipplei Girard, 1856 -- valid -- steelcolor shiner
  Cyprinella whipplii Girard, 1856 -- invalid
  Cyprinella xaenura (Jordan, 1877) -- valid -- Altamaha shiner
  Cyprinella xanthicara (Minckley and Lytle, 1969) -- valid -- carpita de Cuatro Ciénegas, Cuatro Cienegas shiner
  Cyprinella zanema (Jordan and Brayton, 1878) -- invalid -- Santee chub, Santee shiner
  Cyprinidae -- valid -- carpas, carpas y carpitas, carpes, carpes et ménés, carpitas, carps, carps and minnows, ménés, minnows
  Cypriniformes -- valid -- cyprins, meuniers, minnows, suckers
  Cyprinodon albivelis Minckley and Miller in Minckley, Miller and Norris, 2002 -- valid -- cachorrito aletas blancas, whitefin pupfish
  Cyprinodon alvarezi Miller, 1976 -- valid -- cachorrito de Potosí, Potosi pupfish
  Cyprinodon arcuatus Minckley and Miller in Minckley, Miller and Norris, 2002 -- valid -- Santa Cruz pupfish
  Cyprinodon artifrons Hubbs, 1936 -- valid -- bolín petota, Yucatan pupfish
  Cyprinodon atrorus Miller, 1968 -- valid -- bolson pupfish, cachorrito del bolsón
  Cyprinodon beltrani Alvarez, 1949 -- valid -- blackfin pupfish, cachorrito lodero
  Cyprinodon bifasciatus Miller, 1968 -- valid -- cachorrito de Cuatro Ciénegas, Cuatro Cienegas pupfish
  Cyprinodon bobmilleri Lozano-Vilano and Contreras-Balderas, 1993 -- valid -- cachorrito de San Ignacio, San Ignacio pupfish
  Cyprinodon bovinus Baird and Girard, 1853 -- valid -- Leon Springs pupfish
  Cyprinodon ceciliae Lozano-Vilano and Contreras-Balderas, 1993 -- valid -- cachorrito de Villa López, Villa Lopez pupfish
  Cyprinodon diabolis Wales, 1930 -- valid -- Devil's Hole pupfish, Devils Hole pupfish
  Cyprinodon elegans Baird and Girard, 1853 -- valid -- Comanche Springs pupfish
  Cyprinodon esconditus Strecker, 2002 -- valid -- cachorrito escondido, hidden pupfish
  Cyprinodon eximius Girard, 1859 -- valid -- cachorrito del Conchos, Conchos pupfish
  Cyprinodon fontinalis Smith and Miller, 1980 -- valid -- cachorrito de Carbonera, Carbonera pupfish
  Cyprinodon inmemoriam Lozano-Vilano and Contreras-Balderas, 1993 -- valid -- cachorrito de Charco Azul, Charco Azul pupfish
  Cyprinodon labiosus Humphries and Miller, 1981 -- valid -- cachorrito cangrejero, thicklip pupfish
  Cyprinodon latifasciatus Garman, 1881 -- valid -- cachorrito de Parras, Parras pupfish
  Cyprinodon longidorsalis Lozano-Vilano and Contreras-Balderas, 1993 -- valid -- cachorrito de La Palma, La Palma pupfish
  Cyprinodon macrolepis Miller, 1976 -- valid -- bigscale pupfish, cachorrito escamudo
  Cyprinodon macularius Baird and Girard, 1853 -- valid -- cachorrito del desierto, desert pupfish
  Cyprinodon maya Humphries and Miller, 1981 -- valid -- cachorrito gigante, Maya pupfish
  Cyprinodon meeki Miller, 1976 -- valid -- cachorrito del Mezquital, Mezquital pupfish
  Cyprinodon nazas Miller, 1976 -- valid -- cachorrito del Nazas, Nazas pupfish
  Cyprinodon nevadensis Eigenmann and Eigenmann, 1889 -- valid -- Amargosa pupfish
  Cyprinodon pachycephalus Minckley and Minckley, 1986 -- valid -- bighead pupfish, cachorrito cabezón
  Cyprinodon pecosensis Echelle and Echelle, 1978 -- valid -- Pecos pupfish
  Cyprinodon pisteri Miller and Minckley in Minckley, Miller and Norris, 2002 -- valid -- cachorrito de Palomas, Palomas pupfish
  Cyprinodon radiosus Miller, 1948 -- valid -- Owens pupfish
  Cyprinodon rubrofluviatilis Fowler, 1916 -- valid -- Red River pupfish
  Cyprinodon salinus Miller, 1943 -- valid -- Salt Creek pupfish
  Cyprinodon simus Humphries and Miller, 1981 -- valid -- boxer pupfish, cachorrito boxeador
  Cyprinodon tularosa Miller and Echelle, 1975 -- valid -- White Sands pupfish
  Cyprinodon variegatus Lacepède, 1803 -- valid -- bolín, pipón, sheepshead minnow, sheepshead pupfish
  Cyprinodon verecundus Humphries, 1984 -- valid -- cachorrito aletón, largefin pupfish
  Cyprinodon veronicae Lozano-Vilano and Contreras-Balderas, 1993 -- valid -- cachorrito de Charco Palma, Charco Palma pupfish
  Cyprinodontidae Gill, 1865 -- valid -- cachorritos, cyprinodontes, cyprinodontids, killifishes, pupfishes, toothcarps
  Cyprinus carpio Linnaeus, 1758 -- valid -- carpa común, carpe, common carp, European carp
  Cypselurus angusticeps Nichols and Breder, 1935 -- valid -- narrowhead flyingfish, volador isleño
  Cypselurus callopterus (Günther, 1866) -- valid -- beautyfin flyingfish, volador bonito
  Cypselurus comatus (Mitchill, 1815) -- valid -- clearwing flyingfish, volador de alas claras
  Cyttopsis rosea (Lowe, 1843) -- valid -- red dory, San Pedro rojo
  Dactylagnus mundus Gill, 1863 -- valid -- giant stargazer, miraestrellas gigante
  Dactylagnus parvus Dawson, 1976 -- valid -- miraestrellas panámica, Panamic stargazer
  Dactylopteridae -- valid -- alones, flying gurnards, grondins volants
  Dactylopterus volitans (Linnaeus, 1758) -- valid -- alón volador, flying gurnard, pez murciélago
  Dactyloscopidae -- valid -- miraestrellas, sand stargazers, télescopes
  Dactyloscopus amnis Miller and Briggs, 1962 -- valid -- miraestrellas ribereña, riverine stargazer
  Dactyloscopus byersi Dawson, 1969 -- valid -- miraestrellas coliranurada, notchtail stargazer
  Dactyloscopus crossotus Starks, 1913 -- valid -- bigeye stargazer
  Dactyloscopus foraminosus Dawson, 1982 -- valid -- reticulate stargazer
  Dactyloscopus lunaticus Gilbert, 1890 -- valid -- miraestrellas lunática, moonstruck stargazer
  Dactyloscopus metoecus Dawson, 1975 -- valid -- Mexican stargazer, miraestrellas mexicana
  Dactyloscopus minutus Dawson, 1975 -- valid -- miraestrellas chiquita, tiny stargazer
  Dactyloscopus moorei (Fowler, 1906) -- valid -- speckled stargazer
  Dactyloscopus tridigitatus Gill, 1859 -- valid -- miraestrellas ojilargo, mirón ojilargo, sand stargazer
  Dalatias licha (Bonnaterre, 1788) -- valid -- kitefin shark
  Dalatiidae Grey, 1851 -- valid -- kitefin sharks, laimargues, sleeper sharks, tiburones carochos
  Dallia pectoralis Bean, 1880 -- valid -- Alaska blackfish
  Dasyatidae Jordan, 1888 -- valid -- pastenagues, rayas látigo, stingrays, whip-tail stingrays, whiprays, whiptail stingrays
  Dasyatis americana Hildebrand and Schroeder, 1928 -- valid -- raya americana, raya látigo blanca, southern stingray
  Dasyatis centroura (Mitchill, 1815) -- valid -- clam cracker, roughtail stingray, stingaree
  Dasyatis dipterura (Jordan and Gilbert, 1880) -- valid -- diamond stingray, raya látigo diamante
  Dasyatis guttata (Bloch and Schneider, 1801) -- valid -- longnose stingray, raya látigo del Golfo, raya máxima
  Dasyatis sabina (Lesueur, 1824) -- valid -- Atlantic stingray, raya enana, raya látigo de espina
  Dasyatis say (Lesueur, 1817) -- valid -- bluntnose stingray, raya látigo chata, raya mediana
  Dasycottus setiger Bean, 1890 -- valid -- spinyhead sculpin
  Decapterus macarellus (Cuvier in Cuvier and Valenciennes, 1833) -- valid -- antonino caballita, macarela caballa, mackerel scad
  Decapterus macrosoma Bleeker, 1851 -- valid -- blue mackerel scad, blue mackerel scad, cherootfish, cherootfish, macarela alicorta, shortfin scad
  Decapterus muroadsi (Temminck and Schlegel, 1844) -- valid -- amberstripe scad, brownstriped mackerel scad, brownstriped mackerel scad, macarela plátano
  Decapterus punctatus (Cuvier, 1829) -- valid -- antonino punteado, macarela chuparaco, round scad
  Decapterus tabl Berry, 1968 -- valid -- redtail scad
  Decodon melasma Gomon, 1974 -- valid -- blackspot wrasse, viejita manchada
  Decodon puellaris (Poey, 1860) -- valid -- doncella de lo alto, red hogfish
  Deltistes luxatus (Cope, 1879) -- valid -- Lost River sucker
  Derilissus kremnobates Fraser, 1970 -- valid -- chupapiedra ojo estriado, whiskereye clingfish
  Dermatolepis dermatolepis (Boulenger, 1895) -- valid -- leather bass, mero cuero
  Dermatolepis inermis (Valenciennes in Cuvier and Valenciennes, 1833) -- valid -- cherna jaspeada, marbled grouper
  Desmodema lorum Rosenblatt and Butler, 1977 -- valid -- listoncillo látigo, whiptail ribbonfish
  Desmodema polystictum (Ogilby, 1898) -- valid -- polka-dot ribbonfish
  Dialommus macrocephalus (Günther, 1861) -- valid -- foureye rockskipper, trambollo listo
  Diaphus theta Eigenmann and Eigenmann, 1890 -- valid -- California headlightfish, linternilla californiana
  Diapterus auratus Ranzani, 1842 -- valid -- Irish pompano, mojarra guacha, patao común
  Diapterus aureolus (Jordan and Gilbert, 1882) -- valid -- golden mojarra, mojarra palometa
  Diapterus peruvianus (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- mojarra aletas amarillas, Peruvian mojarra
  Diapterus rhombeus (Cuvier, 1829) -- valid -- Caitipa mojarra, mojarra de estero, patao, rhombic mojarra, rhomboid mojarra
  Dibranchus atlanticus Peters, 1876 -- valid -- Atlantic batfish
  Diodon eydouxii Brisout de Barneville, 1846 -- valid -- pelagic porcupinefish, Pelagic Porcupinefish, pez erizo pelágico
  Diodon holocanthus Linnaeus, 1758 -- valid -- balloonfish, Balloonfish, hairy porcupinefish, pez erizo, pez erizo mapache
  Diodon hystrix Linnaeus, 1758 -- valid -- pez erizo pecoso, Porcupinefish, porcupinefish, puerco espín
  Diodontidae -- valid -- burrfishes, peces erizo, poissons porcs-épics, porcupinefishes
  Diogenichthys laternatus (Garman, 1899) -- valid -- Diogenes lanternfish, linternilla de Diogenes
  Dionda argentosa Girard, 1856 -- valid -- carpa de manantial, Manantial roundnose minnow
  Dionda catostomops Hubbs and Miller, 1977 -- valid -- carpa de Tamasopo, Pánuco minnow
  Dionda diaboli Hubbs and Brown, 1957 -- valid -- carpa diabla, Devils River minnow
  Dionda dichroma Hubbs and Miller, 1977 -- valid -- bicolor minnow, carpa bicolor
  Dionda episcopa Girard, 1856 -- valid -- carpa obispa, roundnose minnow
  Dionda erimyzonops Hubbs and Miller, 1974 -- valid -- carpa del Mante, chubsucker minnow
  Dionda ipni (Alvarez and Navarro, 1953) -- valid -- carpa veracruzana, lantern minnow
  Dionda mandibularis Contreras-Balderas and Verduzco-Martínez, 1977 -- valid -- carpa quijarona, flatjaw minnow
  Dionda melanops Girard, 1856 -- valid -- carpa manchada, spotted minnow
  Dionda nigrotaeniata (Cope, 1880) -- valid -- Guadalupe roundnose minnow
  Dionda rasconis (Jordan and Snyder, 1899) -- valid -- blackstripe minnow, carpa potosina
  Dionda serena Girard, 1856 -- valid -- Nueces roundnose minnow
  Diplectrum bivittatum (Valenciennes in Cuvier and Valenciennes, 1828) -- valid -- dwarf sand perch, serrano guabino
  Diplectrum eumelum Rosenblatt and Johnson, 1974 -- valid -- orange-spotted sand perch, serrano carabonita
  Diplectrum euryplectrum Jordan and Bollman, 1890 -- valid -- bighead sand perch, serrano extranjero
  Diplectrum formosum (Linnaeus, 1766) -- valid -- sand perch, serrano, serrano arenero
  Diplectrum labarum Rosenblatt and Johnson, 1974 -- valid -- highfin sand perch, serrano espinudo
  Diplectrum macropoma (Günther, 1864) -- valid -- Mexican sand perch, serrano mexicano
  Diplectrum maximum Hildebrand, 1946 -- valid -- greater sand perch, serrano de altura
  Diplectrum pacificum Meek and Hildebrand, 1925 -- valid -- Pacific sand perch, serrano cabaicucho
  Diplectrum rostrum Bortone, 1974 -- valid -- bridled sand perch, serrano frenado
  Diplectrum sciurus Gilbert, 1892 -- valid -- serrano ardilla, squirrel sand perch
  Diplobatis ommata (Jordan and Gilbert in Jordan and Bollman, 1890) -- valid -- bullseye electric ray, raya eléctrica diana
  Diplodus argenteus (Valenciennes in Cuvier and Valenciennes, 1830) -- valid -- silver porgy
  Diplodus holbrookii (Bean, 1878) -- valid -- sargo cotonero, spottail pinfish
  Diplogrammus pauciradiatus (Gill, 1865) -- valid -- dragoncillo moteado, spotted dragonet
  Diplospinus multistriatus Maul, 1948 -- valid -- escolar rayado, sable estirado, striped escolar
  Dipturus bullisi (Bigelow and Schroeder, 1962) -- valid -- lozenge skate, raya triangular, Tortugas skate
  Dipturus laevis (Mitchill, 1818) -- valid -- barndoor skate, grande raie
  Dipturus olseni (Bigelow and Schroeder, 1951) -- valid -- raya colona, spreadfin skate
  Doradidae Bleeker, 1858 -- valid -- bagres sierra, poissons-chats épineux, thorny catfishes
  Doratonotus megalepis Günther, 1862 -- valid -- doncella enana, dwarf wrasse
  Dormitator latifrons (Richardson, 1844) -- valid -- Pacific fat sleeper, puyeki
  Dormitator maculatus (Bloch, 1792) -- valid -- fat sleeper, guavina mapo, naca
  Dorosoma anale Meek, 1904 -- valid -- longfin gizzard shad, Mexican river gizzard shad, sardina del Papaloapan
  Dorosoma cepedianum (Lesueur, 1818) -- valid -- alose à gésier, American gizzard shad, eastern gizzard shad, gizzard shad, hickory shad, mud shad, sardina molleja, skipjack
  Dorosoma petenense (Günther, 1867) -- valid -- sardina maya, threadfin shad
  Dorosoma smithi Hubbs and Miller, 1941 -- valid -- Pacific gizzard shad, sardina norteña
  Doryrhamphus excisus Kaup, 1856 -- valid -- fantail pipefish, pez pipa chico
  Dysomma anguillare Barnard, 1923 -- valid -- anguila panzacorta, blind arrowtooth eel, shortbelly eel
  Echeneidae -- valid -- remoras, rémoras, rémoras, sharksuckers
  Echeneis naucrates Linnaeus, 1758 -- valid -- guaicán, rémora rayada, sharksucker
  Echeneis neucratoides Zuiew, 1786 -- valid -- rémora filoblanco, whitefin sharksucker
  Echidna catenata (Bloch, 1795) -- valid -- chain moray, morena cadena, morena jaspeada
  Echidna nebulosa (Ahl, 1789) -- valid -- morena estrellada, starry moray, white moray
  Echidna nocturna (Cope, 1872) -- valid -- morena pecosa, palenose moray
  Echinorhinidae Gill, 1862 -- valid -- bramble sharks, squales bouclés, tiburones espinosos
  Echinorhinus brucus (Bonnaterre, 1788) -- valid -- bramble shark
  Echinorhinus cookei Pietschmann, 1928 -- valid -- prickly shark, tiburón espinoso negro
  Echiodon dawsoni Williams and Shipp, 1982 -- valid -- chain pearlfish
  Echiodon exsilium Rosenblatt, 1961 -- valid -- nocturnal pearlfish, perlero nocturno
  Echiophis brunneus (Castro-Aguirre and Suárez de los Cobos, 1983) -- valid -- fangjaw eel, tieso colmillón
  Echiophis intertinctus (Richardson, 1848) -- valid -- safío dentudo lunado, spotted spoon-nose eel, tieso cucharón manchado
  Echiophis punctifer (Kaup, 1860) -- valid -- safío dentudo punteado, snapper eel, stippled spoon-nose eel, tieso pecoso
  Ekemblemaria myersi Stephens, 1963 -- valid -- reef-sand blenny, tubícola de cejas
  Elacatinus digueti (Pellegrin, 1901) -- valid -- banded cleaning goby, gobio barbero, redhead goby
  Elacatinus evelynae (Böhlke and Robins, 1968) -- valid -- gobio hocicudo, gobio tiburoncito, sharknose goby, sharpnose goby
  Elacatinus genie (Böhlke and Robins, 1968) -- valid -- cleaner goby, cleaning goby, gobio limpiador
  Elacatinus horsti (Metzelaar, 1922) -- valid -- gobio de banda amarilla, yellowline goby
  Elacatinus illecebrosus (Böhlke and Robins, 1968) -- valid -- barsnout goby, gobio seductor
  Elacatinus janssi Bussing, 1981 -- valid -- gobio lomopintado, spotback goby
  Elacatinus limbaughi Hoese and Reader, 2001 -- valid -- gobio insólito, widebanded cleaning goby
  Elacatinus louisae (Böhlke and Robins, 1968) -- valid -- gobio farol, spotlight goby
  Elacatinus macrodon (Beebe and Tee-Van, 1928) -- valid -- gobio tigre, tiger goby
  Elacatinus oceanops Jordan, 1904 -- valid -- neon goby
  Elacatinus prochilos (Böhlke and Robins, 1968) -- valid -- broadstripe goby, gobio bordeado
  Elacatinus puncticulatus (Ginsburg, 1938) -- invalid -- gobio cabeza roja, redhead goby
  Elacatinus xanthiprora (Böhlke and Robins, 1968) -- valid -- yellowprow goby
  Elagatis bipinnulata (Quoy and Gaimard, 1825) -- valid -- macarela salmón, rainbow runner, salmón cubano
  Elasmobranchii -- valid -- cartilaginous fishes, rays, sharks, skates, torpedoes
  Elassoma alabamae Mayden, 1993 -- valid -- spring pygmy sunfish
  Elassoma boehlkei Rohde and Arndt, 1987 -- valid -- Carolina pygmy sunfish
  Elassoma evergladei Jordan, 1884 -- valid -- Everglades pygmy sunfish
  Elassoma okatie Rohde and Arndt, 1987 -- valid -- bluebarred pygmy sunfish
  Elassoma okefenokee Böhlke, 1956 -- valid -- Okefenokee pygmy sunfish
  Elassoma zonatum Jordan, 1877 -- valid -- banded pygmy sunfish
  Elassomatidae -- valid -- crapets-pygmées, pygmy sunfishes, solecitos
  Elattarchus archidium (Jordan and Gilbert, 1882) -- valid -- bluestreak drum, corvineta gallinita
  Eleginus gracilis (Tilesius, 1810) -- valid -- saffron cod
  Eleotridae -- valid -- dormeurs, guavinas, sleepers
  Eleotris amblyopsis (Cope, 1871) -- valid -- dormilón oscuro, largescaled spinycheek sleeper
  Eleotris perniger (Cope, 1871) -- valid -- guavina espinosa, smallscaled spinycheek sleeper
  Eleotris picta Kner, 1863 -- valid -- guavina machada, spotted sleeper
  Elopidae -- valid -- bigeyed herrings, guinées, ladyfishes, machetes, tarpons, tenpounders
  Elopiformes -- valid -- tarpons
  Elops affinis Regan, 1909 -- valid -- machete, machete del Pacífico
  Elops saurus Linnaeus, 1766 -- valid -- banano, ladyfish, machete del Atlántico
  Embassichthys bathybius (Gilbert, 1890) -- valid -- deepsea sole, Deepsea Sole, platija de profundidad, plie de profondeur
  Embiotoca jacksoni Agassiz, 1853 -- valid -- black perch, mojarra negra
  Embiotoca lateralis Agassiz, 1854 -- valid -- mojarra azul, striped seaperch
  Embiotocidae -- valid -- mojarras vivíparas, perches vivipares, surf perches, surfperches
  Emblemaria atlantica Jordan and Evermann, 1898 -- valid -- banner blenny
  Emblemaria hypacanthus (Jenkins and Evermann, 1889) -- valid -- Gulf signal blenny, tubícola flamante
  Emblemaria pandionis Evermann and Marsh, 1900 -- valid -- sailfin blenny, sapito dragón, tubícola dragón
  Emblemaria piratica Ginsburg, 1942 -- valid -- sailfin signal blenny, tubícola bandera
  Emblemaria piratula Ginsburg and Reid in Ginsburg, 1942 -- valid -- pirate blenny
  Emblemaria walkeri Stephens, 1963 -- valid -- elusive signal blenny, tubícola fugaz
  Emblemariopsis bahamensis Stephens, 1961 -- valid -- blackhead blenny, tubícola cabezinegro
  Emblemariopsis occidentalis Stephens, 1970 -- valid -- redspine blenny, sapito aletón, tubícola espina roja
  Emblemariopsis pricei Greenfield, 1975 -- valid -- seafan blenny, tubícola gorgonio
  Emblemariopsis signifera (Ginsburg, 1942) -- valid -- flagfin blenny, sapito aletón, tubícola aletón
  Emmelichthyidae -- valid -- andorreros, bonnetmouths, poissons-rubis, rovers
  Emmelichthyops atlanticus Schultz, 1945 -- valid -- bonnetmouth
  Emmelichthys ruber (Trunov, 1976) -- valid -- red rover
  Empetrichthys latos Miller, 1948 -- valid -- Pahrump killifish, Pahrump poolfish
  Empetrichthys merriami Gilbert, 1893 -- valid -- Ash Meadows killifish, Ash Meadows poolfish
  Encheliophis dubius (Putnam, 1874) -- invalid -- Pacific pearlfish, perlero del Pacífico
  Encheliophis vermicularis Müller, 1842 -- valid -- finless pearlfish, perlero mocho
  Enchelycore carychroa Böhlke and Böhlke, 1976 -- valid -- chestnut moray, morena castaña, morena parda
  Enchelycore nigricans (Bonnaterre, 1788) -- valid -- morena mulata, morena víbora, viper moray
  Enchelycore octaviana (Myers and Wade, 1941) -- valid -- morena octaviana, slenderjaw moray
  Enchelyopus cimbrius (Linnaeus, 1766) -- valid -- fourbeard rockling, motelle à quatre barbillons
  Engraulidae -- valid -- anchoas, anchois, anchovies
  Engraulis eurystole (Swain and Meek, 1884) -- valid -- camiguana anchovy, silver anchovy
  Engraulis mordax Girard, 1854 -- valid -- anchoveta norteña, Californian anchoveta, North Pacific anchovy, northern anchovy
  Engyophrys sanctilaurentii Jordan & Bollman, 1890 -- valid -- lenguado colimanchada, speckledtail flounder, Speckledtail Flounder
  Engyophrys senta Ginsburg, 1933 -- valid -- lenguado ojicornudo, Spiny Flounder, spiny flounder
  Enneacanthus chaetodon (Baird, 1855) -- valid -- blackbanded sunfish
  Enneacanthus gloriosus (Holbrook, 1855) -- valid -- bluespotted sunfish
  Enneacanthus obesus (Girard, 1854) -- valid -- banded sunfish, diamond sunfish, little sunfish
  Enneanectes altivelis Rosenblatt, 1960 -- valid -- lofty triplefin, sapito barreado, tres aletas de barras
  Enneanectes atrorus Rosenblatt, 1960 -- valid -- blackedge triplefin, blackedge triplefin, sapito orleado, tres aletas orlado
  Enneanectes boehlkei Rosenblatt, 1960 -- valid -- roughhead triplefin, sapito rugoso, tres aletas rugoso
  Enneanectes jordani (Evermann and Marsh, 1899) -- valid -- mimic triplefin, mimic triplefin, sapito tres aletas, tres aletas escondido
  Enneanectes pectoralis (Fowler, 1941) -- valid -- redeye triplefin, tres aletas aletón
  Enneanectes reticulatus Allen and Robertson, 1991 -- valid -- flag triplefin, tres aletas bandera
  Enophrys bison (Girard, 1854) -- valid -- buffalo sculpin
  Enophrys diceraus (Pallas, 1787) -- valid -- antlered sculpin
  Enophrys lucasi (Jordan and Gilbert in Jordan and Evermann, 1898) -- valid -- leister sculpin
  Enophrys taurina Gilbert, 1914 -- valid -- bull sculpin
  Entomacrodus chiostictus (Jordan and Gilbert, 1882) -- valid -- borracho aleta mocha, notchfin blenny
  Entomacrodus nigricans Gill, 1859 -- valid -- blenio perlado, borracho perlado, pearl blenny
  Enypnias seminudus (Günther, 1861) -- valid -- gobio cienoso, silt goby
  Eopsetta jordani (Lockington, 1879) -- valid -- petrale sole, Petrale Sole, platija petrale, plie de Californie
  Ephippidae -- valid -- chèvres de mer, peluqueros, spadefishes
  Epinephelus acanthistius (Gilbert, 1892) -- valid -- baqueta, Gulf coney, rooster hind
  Epinephelus adscensionis (Osbeck, 1765) -- valid -- cabra mora, cabrilla payaso, rock hind
  Epinephelus analogus Gill, 1863 -- valid -- cabrilla pinta, spotted cabrilla
  Epinephelus cifuentesi Lavenberg and Grove in Heemstra and Randall, 1993 -- valid -- cabrilla gallina, olive grouper
  Epinephelus drummondhayi Goode and Bean, 1878 -- valid -- mero pintarroja, speckled hind
  Epinephelus exsul (Fowler, 1944) -- valid -- cabrilla diez espinas, tenspine grouper
  Epinephelus flavolimbatus Poey, 1865 -- valid -- mero de aletas amarillas, mero extraviado, yellowedge grouper
  Epinephelus guttatus (Linnaeus, 1758) -- valid -- cabrilla, cabrilla colorada, red hind
  Epinephelus itajara (Lichtenstein, 1822) -- valid -- goliath grouper, guasa, jewfish, mero guasa
  Epinephelus labriformis (Jenyns, 1840) -- valid -- cabrilla piedrera, flag cabrilla, lateralband grouper, starry grouper
  Epinephelus morio (Valenciennes in Cuvier and Valenciennes, 1828) -- valid -- cherna americana, red grouper
  Epinephelus mystacinus (Poey, 1852) -- valid -- cherno de lo alto, convict grouper, misty grouper, moustache grouper
  Epinephelus nigritus (Holbrook, 1855) -- valid -- cherno prieto, mero negro, warsaw grouper
  Epinephelus niphobles Gilbert and Starks in Gilbert, 1897 -- valid -- baqueta ploma, star-studded grouper, star-studed grouper
  Epinephelus niveatus (Valenciennes in Cuvier and Valenciennes, 1828) -- valid -- cherna manchada, cherna pintada, snowy grouper
  Epinephelus striatus (Bloch, 1792) -- valid -- cherna criolla, mero del Caribe, Nassau grouper
  Epinnula magistralis Poey, 1854 -- valid -- domine, dómine, dominó
  Eptatretus deani (Evermann and Goldsborough, 1907) -- valid -- black hagfish, bruja pecosa
  Eptatretus fritzi Wisner and McMillan, 1990 -- valid -- bruja de Guadalupe, Guadalupe hagfish
  Eptatretus mcconnaugheyi Wisner and McMillan, 1990 -- valid -- bruja cabeza chica, shorthead hagfish
  Eptatretus sinus Wisner and McMillan, 1990 -- valid -- bruja de Cortés, Cortez hagfish
  Eptatretus stoutii (Lockington, 1878) -- valid -- bruja pintada, Pacific hagfish
  Equetus lanceolatus (Linnaeus, 1758) -- valid -- jackknife fish, jackknife-fish, payasito obispo, vaqueta de cinta
  Equetus punctatus (Bloch and Schneider, 1801) -- valid -- payasito punteado, spotted drum, vaqueta punteada
  Eremichthys acros Hubbs and Miller, 1948 -- valid -- desert dace
  Erilepis zonifer (Lockington, 1880) -- valid -- skilfish
  Erimonax monachus (Cope, 1868) -- valid -- spotfin chub
  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 -- gravel chub
  Erimyzon oblongus (Mitchill, 1814) -- valid -- creek chubsucker
  Erimyzon sucetta (Lacepède, 1803) -- valid -- lake chubsucker
  Erimyzon tenuis (Agassiz, 1855) -- valid -- sharpfin chubsucker
  Ernogrammus walkeri Follett and Powell, 1988 -- valid -- masked prickleback
  Erotelis armiger (Jordan and Richardson in Jordan, 1895) -- valid -- flathead sleeper, guavina cabeza plana
  Erotelis smaragdus (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- emerald sleeper, guavina de concha
  Erythrocles monodi Poll and Cadenat, 1954 -- valid -- crimson rover
  Esocidae -- valid -- brochets, lucios, pickerels, pikes
  Esox americanus Gmelin, 1789 -- valid -- brochet d'Amérique, brochet d'Amérique (vermiculé), grass pickerel, redfin or grass pickerel, redfin pickerel
  Esox lucius Linnaeus, 1758 -- valid -- grand brochet, northern pike
  Esox masquinongy Mitchill, 1824 -- valid -- maskinongé, muskellunge
  Esox niger Lesueur, 1818 -- valid -- brochet maillé, chain pickerel
  Esselenichthys carli (Follett and Anderson, 1990) -- valid -- abrojo tres rayas, threeline prickleback
  Esselenichthys laurae (Follett and Anderson, 1990) -- valid -- abrojo dos rayas, twoline prickleback
  Etelis oculatus (Valenciennes in Cuvier and Valenciennes, 1828) -- valid -- cachucho, pargo cachucho, queen snapper
  Ethadophis akkistikos McCosker and Böhlke, 1984 -- valid -- indifferent eel
  Ethadophis byrnei Rosenblatt and McCosker, 1970 -- valid -- ordinary eel, tieso de Cortés
  Ethadophis merenda Rosenblatt and McCosker, 1970 -- valid -- snack eel, tieso merienda
  Etheostoma acuticeps Bailey, 1959 -- invalid -- Sharphead Darter
  Etheostoma aquali Williams and Etnier, 1978 -- invalid -- Coppercheek Darter
  Etheostoma artesiae (Hay, 1881) -- valid -- Redspot Darter
  Etheostoma asprigene (Forbes in Jordan, 1878) -- valid -- Mud Darter
  Etheostoma australe Jordan, 1889 -- valid -- Conchos Darter, perca del Conchos
  Etheostoma baileyi Page and Burr, 1982 -- valid -- Emerald Darter
  Etheostoma barbouri Kuehne and Small, 1971 -- valid -- Teardrop Darter
  Etheostoma barrenense Burr and Page in Page and Burr, 1982 -- valid -- Splendid Darter
  Etheostoma bellator Suttkus and Bailey, 1993 -- valid -- Warrior Darter
  Etheostoma bellum Zorach, 1968 -- invalid -- Orangefin Darter
  Etheostoma bison Ceas and Page, 1997 -- valid -- Buffalo Darter
  Etheostoma blennioides Rafinesque, 1819 -- valid -- Greenside Darter
  Etheostoma blennius Gilbert and Swain in Gilbert, 1887 -- valid -- Blenny Darter
  Etheostoma boschungi Wall and Williams, 1974 -- valid -- Slackwater Darter
  Etheostoma brevirostrum Suttkus and Etnier, 1991 -- valid -- Holiday Darter
  Etheostoma burri Ceas and Page, 1997 -- valid -- Brook Darter
  Etheostoma caeruleum Storer, 1845 -- valid -- dard arc-en-ciel, Rainbow Darter
  Etheostoma camurum (Cope, 1870) -- invalid -- Bluebreast Darter
  Etheostoma chermocki Boschung, Mayden and Tomelleri, 1992 -- valid -- Vermilion Darter
  Etheostoma chienense Page and Ceas in Page, Ceas, Swofford and Buth, 1992 -- valid -- Relict Darter
  Etheostoma chlorobranchium Zorach, 1972 -- invalid -- Greenfin Darter
  Etheostoma chlorosoma (Hay, 1881) -- valid -- Bluntnose Darter
  Etheostoma chlorosomum (Hay, 1881) -- invalid -- Bluntnose Darter
  Etheostoma chuckwachatte Mayden and Wood in Wood and Mayden, 1993 -- invalid -- Lipstick Darter
  Etheostoma cinereum Storer, 1845 -- invalid -- Ashy Darter
  Etheostoma collettei Birdsong and Knapp, 1969 -- valid -- Creole Darter
  Etheostoma collis (Hubbs and Cannon, 1935) -- valid -- Carolina Darter
  Etheostoma colorosum Suttkus and Bailey, 1993 -- valid -- Coastal Darter
  Etheostoma coosae (Fowler, 1945) -- valid -- Coosa Darter
  Etheostoma corona Page and Ceas in Page, Ceas, Swofford and Buth, 1992 -- valid -- Crown Darter
  Etheostoma cragini Gilbert, 1885 -- valid -- Arkansas Darter
  Etheostoma crossopterum Braasch and Mayden, 1985 -- valid -- Fringed Darter
  Etheostoma davisoni Hay, 1885 -- valid -- Choctawhatchee Darter
  Etheostoma denoncourti Stauffer and van Snik, 1997 -- invalid -- Golden Darter
  Etheostoma ditrema Ramsey and Suttkus, 1965 -- valid -- Coldwater Darter
  Etheostoma douglasi Wood and Mayden, 1993 -- invalid -- Tuskaloosa Darter, Tuskalusa Darter
  Etheostoma duryi Henshall, 1889 -- valid -- Black Darter, Blackside Darter, Blackside Snubnose Darter
  Etheostoma edwini (Hubbs and Cannon, 1935) -- valid -- Brown Darter
  Etheostoma etnieri Bouchard, 1977 -- valid -- Cherry Darter
  Etheostoma etowahae Wood and Mayden, 1993 -- invalid -- Etowah Darter
  Etheostoma euzonum (Hubbs and Black, 1940) -- valid -- Arkansas Saddled Darter
  Etheostoma exile (Girard, 1859) -- valid -- dard à ventre jaune, Iowa Darter
  Etheostoma flabellare Rafinesque, 1819 -- valid -- dard barré, Fantail Darter
  Etheostoma flavum Etnier and Bailey, 1989 -- valid -- Saffron Darter
  Etheostoma fonticola (Jordan and Gilbert, 1886) -- valid -- Fountain Darter
  Etheostoma forbesi Page and Ceas in Page, Ceas, Swofford and Buth, 1992 -- valid -- Barrens Darter
  Etheostoma fragi Distler, 1968 -- valid -- Strawberry Darter
  Etheostoma fricksium Hildebrand, 1923 -- valid -- Savannah Darter
  Etheostoma fusiforme (Girard, 1854) -- valid -- Swamp Darter
  Etheostoma gracile (Girard, 1859) -- valid -- Slough Darter
  Etheostoma grahami (Girard, 1859) -- valid -- perca del Bravo, Rio Grande Darter
  Etheostoma histrio Jordan and Gilbert in Gilbert, 1887 -- valid -- Harlequin Darter
  Etheostoma hopkinsi (Fowler, 1945) -- valid -- Christmas Darter
  Etheostoma inscriptum (Jordan and Brayton, 1878) -- valid -- Turquoise Darter
  Etheostoma jessiae (Jordan and Brayton in Jordan, 1878) -- valid -- Blueside Darter
  Etheostoma jordani Gilbert, 1891 -- invalid -- Greenbreast Darter
  Etheostoma juliae Meek, 1891 -- invalid -- Yoke Darter
  Etheostoma kanawhae (Raney, 1941) -- valid -- Kanawha Darter
  Etheostoma kantuckeense Ceas and Page, 1997 -- valid -- Highland Rim Darter
  Etheostoma kennicotti (Putnam, 1863) -- valid -- Stripetail Darter
  Etheostoma lachneri Suttkus and Bailey in Suttkus, Bailey and Bart, 1994 -- valid -- Tombigbee Darter
  Etheostoma lawrencei Ceas and Burr, 2002 -- valid -- Headwater Darter
  Etheostoma lepidum (Baird and Girard, 1853) -- valid -- Greenthroat Darter
  Etheostoma longimanum Jordan, 1888 -- valid -- Longfin Darter
  Etheostoma lugoi Norris and Minckley, 1997 -- valid -- perca de toba, Tufa Darter
  Etheostoma luteovinctum Gilbert and Swain in Gilbert, 1887 -- valid -- Redband Darter
  Etheostoma lynceum Hay in Jordan, 1885 -- valid -- Brighteye Darter
  Etheostoma maculatum Kirtland, 1840 -- invalid -- Spotted Darter
  Etheostoma mariae (Fowler, 1947) -- valid -- Pinewoods Darter
  Etheostoma microlepidum Raney and Zorach, 1967 -- invalid -- Smallscale Darter
  Etheostoma microperca Jordan and Gilbert in Jordan, 1888 -- valid -- Least Darter
  Etheostoma moorei Raney and Suttkus, 1964 -- invalid -- Yellowcheek Darter
  Etheostoma neopterum Howell and Dingerkus, 1978 -- valid -- Lollipop Darter, Lollypop Darter
  Etheostoma nianguae Gilbert and Meek in Gilbert, 1887 -- valid -- Niangua Darter
  Etheostoma nigripinne Braasch and Mayden, 1985 -- valid -- Blackfin Darter
  Etheostoma nigrum Rafinesque, 1820 -- valid -- Johnny Darter, raseux-de-terre noir
  Etheostoma nuchale Howell and Caldwell, 1965 -- valid -- Watercress Darter
  Etheostoma obeyense Kirsch, 1892 -- valid -- Barcheek Darter
  Etheostoma okaloosae (Fowler, 1941) -- valid -- Okaloosa Darter
  Etheostoma olivaceum Braasch and Page, 1979 -- valid -- Dirty Darter, Sooty Darter
  Etheostoma olmstedi Storer, 1842 -- valid -- raseux-de-terre gris, Tessellated Darter
  Etheostoma oophylax Ceas and Page in Page, Ceas, Swofford and Buth, 1992 -- valid -- Guardian Darter
  Etheostoma osburni (Hubbs and Trautman, 1932) -- valid -- Candy Darter, Finescale Saddled Darter
  Etheostoma pallididorsum Distler and Metcalf, 1962 -- valid -- Paleback Darter
  Etheostoma parvipinne Gilbert and Swain in Gilbert, 1887 -- valid -- Goldstripe Darter
  Etheostoma percnurum Jenkins in Jenkins and Burkhead, 1994 -- valid -- Duskytail Darter
  Etheostoma perlongum (Hubbs and Raney, 1946) -- valid -- Waccamaw Darter
  Etheostoma phytophilum Bart and Taylor, 1999 -- valid -- Rush Darter
  Etheostoma podostemone Jordan and Jenkins in Jordan, 1889 -- valid -- Riverweed Darter
  Etheostoma pottsii (Girard, 1859) -- valid -- Mexican Darter, perca mexicana
  Etheostoma proeliare (Hay, 1881) -- valid -- Cypress Darter
  Etheostoma pseudovulatum Page and Ceas in Page, Ceas, Swofford and Buth, 1992 -- valid -- Egg-mimic Darter
  Etheostoma punctulatum (Agassiz, 1854) -- valid -- Stippled Darter
  Etheostoma pyrrhogaster Bailey and Etnier, 1988 -- valid -- Firebelly Darter
  Etheostoma radiosum (Hubbs and Black, 1941) -- valid -- Orangebelly Darter
  Etheostoma rafinesquei Burr and Page in Page and Burr, 1982 -- valid -- Kentucky Darter, Kentucky Snubnose Darter
  Etheostoma ramseyi Suttkus and Bailey in Suttkus, Bailey and Bart, 1994 -- valid -- Alabama Darter
  Etheostoma raneyi Suttkus and Bart in Suttkus, Bailey and Bart, 1994 -- valid -- Yazoo Darter
  Etheostoma rubrum Raney and Suttkus, 1966 -- invalid -- Bayou Darter
  Etheostoma rufilineatum (Cope, 1870) -- invalid -- Redline Darter
  Etheostoma rupestre Gilbert and Swain in Gilbert, 1887 -- valid -- Rock Darter
  Etheostoma sagitta (Jordan and Swain, 1883) -- valid -- Arrow Darter, Cumberland Arrow Darter
  Etheostoma sanguifluum (Cope, 1870) -- invalid -- Bloodfin Darter
  Etheostoma scotti Bauer, Etnier and Burkhead, 1995 -- valid -- Cherokee Darter
  Etheostoma segrex Norris and Minckley, 1997 -- valid -- perca del Salado, Salado Darter
  Etheostoma sellare (Radcliffe and Welsh, 1913) -- valid -- Maryland Darter
  Etheostoma serrifer (Hubbs and Cannon, 1935) -- valid -- Sawcheek Darter
  Etheostoma simoterum (Cope, 1868) -- valid -- Snubnose Darter, Tennessee Snubnose Darter
  Etheostoma smithi Page and Braasch, 1976 -- valid -- Slabrock Darter
  Etheostoma spectabile (Agassiz, 1854) -- valid -- Orangethroat Darter
  Etheostoma squamiceps Jordan, 1877 -- valid -- Spottail Darter
  Etheostoma stigmaeum (Jordan, 1877) -- valid -- Speckled Darter
  Etheostoma striatulum Page and Braasch, 1977 -- valid -- Striated Darter
  Etheostoma swaini (Jordan, 1884) -- valid -- Gulf Darter
  Etheostoma swannanoa Jordan and Evermann in Jordan, 1889 -- valid -- Swannanoa Darter
  Etheostoma tallapoosae Suttkus and Etnier, 1991 -- valid -- Tallapoosa Darter
  Etheostoma tecumsehi Ceas and Page, 1997 -- valid -- Shawnee Darter
  Etheostoma tetrazonum (Hubbs and Black, 1940) -- valid -- Missouri Saddled Darter
  Etheostoma thalassinum (Jordan and Brayton, 1878) -- valid -- Seagreen Darter
  Etheostoma tippecanoe Jordan and Evermann, 1890 -- invalid -- Tippecanoe Darter
  Etheostoma trisella Bailey and Richards, 1963 -- valid -- Trispot Darter
  Etheostoma tuscumbia Gilbert and Swain in Gilbert, 1887 -- valid -- Tuscumbia Darter
  Etheostoma uniporum Distler, 1968 -- valid -- Current Darter
  Etheostoma variatum Kirtland, 1840 -- valid -- Variegate Darter
  Etheostoma virgatum (Jordan, 1880) -- valid -- Striped Darter
  Etheostoma vitreum (Cope, 1870) -- valid -- Glassy Darter
  Etheostoma vulneratum (Cope, 1870) -- invalid -- Wounded Darter
  Etheostoma wapiti Etnier and Williams, 1989 -- invalid -- Boulder Darter, Elk River Darter
  Etheostoma whipplei (Girard, 1859) -- valid -- Redfin Darter
  Etheostoma zonale (Cope, 1868) -- valid -- Banded Darter
  Etheostoma zonifer (Hubbs and Cannon, 1935) -- valid -- Backwater Darter
  Etheostoma zonistium Bailey and Etnier, 1988 -- valid -- Bandfin Darter
  Etmopteridae Fowler, 1934 -- valid -- lantern sharks, requins-lanternes, tiburones luceros
  Etmopterus bigelowi Shirai and Tachikawa, 1993 -- valid -- blurred lantern shark, blurred smooth lantern shark
  Etmopterus gracilispinis Krefft, 1968 -- valid -- broadband dogfish, broadband lantern shark, broadbanded lanternshark
  Etropus crossotus Jordan & Gilbert, 1882 -- valid -- fringed flounder, Fringed Flounder, lenguado orlado, lenguado ribete
  Etropus cyclosquamus Leslie & Stewart, 1986 -- valid -- shelf flounder, Shelf Flounder
  Etropus microstomus (Gill, 1864) -- valid -- smallmouth flounder, Smallmouth Flounder
  Etropus peruvianus Hildebrand, 1946 -- valid -- lenguado zapatilla, Peruvian flounder, Peruvian Flounder
  Etropus rimosus Goode & Bean, 1885 -- valid -- gray flounder, Gray Flounder, lenguado sombreado
  Etrumeus teres (DeKay, 1842) -- valid -- Atlantic red herring, Maray, red-eye round herring, round herring, sardina canalera, sardina japonesa
  Eucinostomus argenteus Baird and Girard in Baird, 1855 -- valid -- mojarra plateada, spotfin mojarra
  Eucinostomus currani Zahuranec in Yáñez-Arancibia, 1980 -- valid -- mojarra tricolor, Pacific flagfin mojarra
  Eucinostomus dowii (Gill, 1863) -- valid -- mojarra manchita, Pacific spotfin mojarra
  Eucinostomus entomelas Zahuranec in Yáñez-Arancibia, 1980 -- valid -- darkspot mojarra, mojarra mancha negra
  Eucinostomus gracilis (Gill, 1862) -- valid -- graceful mojarra, mojarra charrita
  Eucinostomus gula (Quoy and Gaimard, 1824) -- valid -- mojarra de ley, mojarra española, silver jenny
  Eucinostomus harengulus Goode and Bean, 1879 -- valid -- mojarra costera, tidewater mojarra
  Eucinostomus havana (Nichols, 1912) -- valid -- bigeye mojarra, mojarra cubana, mojarrita manchada
  Eucinostomus jonesii (Günther, 1879) -- valid -- mojarra flaca, mojarrita esbelta, slender mojarra
  Eucinostomus lefroyi (Goode, 1874) -- valid -- mojarra pinta, mojarrita, mottled mojarra
  Eucinostomus melanopterus (Bleeker, 1863) -- valid -- flagfin mojarra, mojarra bandera, mojarra de ley
  Eucryphycus californicus (Starks and Mann, 1911) -- valid -- persimmon eelpout
  Eucyclogobius newberryi (Girard, 1856) -- valid -- tidewater goby
  Eugerres axillaris (Günther, 1864) -- valid -- black axillary mojarra, mojarra malacapa
  Eugerres brasilianus (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- Brazilian mojarra, mojarra brasileña, patao brasileño
  Eugerres brevimanus (Günther, 1864) -- valid -- mojarra aleta corta, shortfin mojarra
  Eugerres lineatus (Humboldt in Humboldt and Valenciennes, 1821) -- valid -- mojarra china, streaked mojarra
  Eugerres mexicanus (Steindachner, 1863) -- valid -- Mexican mojarra, mojarra mexicana
  Eugerres plumieri (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- mojarra rayada, patao rayado, striped mojarra
  Euleptorhamphus velox Poey, 1868 -- valid -- agujeta voladora, escribano volador, flying halfbeak
  Euleptorhamphus viridis (van Hasselt, 1823) -- valid -- agujeta alargada, longbeaked garfish, ribbon halfbeak
  Eumecichthys fiski (Günther, 1890) -- valid -- unicorn crestfish, unicornfish
  Eumesogrammus praecisus (Krøyer, 1836) -- valid -- fourline snakeblenny, quatre-lignes atlantique
  Eumicrotremus andriashevi Perminov, 1936 -- valid -- pimpled lumpsucker
  Eumicrotremus asperrimus (Tanaka, 1912) -- valid -- Siberian lumpsucker
  Eumicrotremus barbatus (Lindberg and Legeza, 1955) -- valid -- papillose lumpsucker
  Eumicrotremus derjugini Popov, 1926 -- valid -- leatherfin lumpsucker, petite poule de mer Arctique
  Eumicrotremus eggvinii Koefoed, 1956 -- valid -- Eggvin lumpsucker
  Eumicrotremus gyrinops (Garman, 1892) -- valid -- Alaskan lumpsucker
  Eumicrotremus orbis (Günther, 1861) -- valid -- Pacific spiny lumpsucker
  Eumicrotremus phrynoides Gilbert and Burke, 1912 -- valid -- toad lumpsucker
  Eumicrotremus spinosus (Fabricius in Müller, 1776) -- valid -- Atlantic spiny lumpsucker, petite poule de mer atlantique
  Eumicrotremus terraenovae Myers and Böhlke, 1950 -- valid -- Newfoundland spiny lumpsucker
  Euprotomicrus bispinatus (Quoy and Gaimard, 1824) -- valid -- pygmy shark, tiburón pigmeo
  Eurymen gyrinus Gilbert and Burke, 1912 -- valid -- smoothcheek sculpin
  Euthynnus affinis (Cantor, 1849) -- valid -- bacoreta oriental, kawakawa, thonine orientale
  Euthynnus alletteratus (Rafinesque, 1810) -- valid -- bacoreta, comevíveres, false albacore, little tuna, little tunny, thonine commune
  Euthynnus lineatus Kishinouye, 1920 -- valid -- barrilete negro, black skipjack, thonine noire
  Evarra bustamantei Navarro, 1955 -- valid -- carpa xochimilca, Mexican chub
  Evarra eigenmanni Woolman, 1894 -- valid -- carpa verde, plateau chub
  Evarra tlahuacensis Meek, 1902 -- valid -- carpa de Tláhuac, endorheic chub
  Evermannia longipinnis (Steindachner, 1879) -- valid -- enigmatic goby, gobio enigmático
  Evermannia zosterura (Jordan and Gilbert, 1882) -- valid -- bandedtail goby, gobio colirrayada
  Evermannichthys spongicola (Radcliffe, 1917) -- valid -- gobio esponjero, sponge goby
  Evorthodus lyricus (Girard, 1858) -- valid -- gobio lira, lyre goby, tismiche
  Evorthodus minutus Meek and Hildebrand, 1928 -- valid -- gobio pequeño, small goby
  Evoxymetopon taeniatus Gill, 1863 -- valid -- channel scabbardfish, tirante, tyrant fish
  Exerpes asper (Jenkins and Evermann, 1889) -- valid -- sargassum blenny, trambollo sargacero
  Exocoetidae -- valid -- exocets, flyingfishes, voladores
  Exocoetus monocirrhus Richardson, 1846 -- valid -- barbel flyingfish, volador barbudo
  Exocoetus obtusirostris Günther, 1866 -- valid -- oceanic two-wing flyingfish, volador flecha, volador oceánico
  Exocoetus volitans Linnaeus, 1758 -- valid -- tropical two-wing flyingfish, volador tropical
  Exoglossum laurae (Hubbs, 1931) -- valid -- tonguetied minnow
  Exoglossum maxillingua (Lesueur, 1817) -- valid -- bec-de-lièvre, cutlip minnow, cutlips minnow
  Facciolella equatorialis (Gilbert, 1891) -- valid -- dogface witch eel, serpentina bruja
  Fenestraja sinusmexicanus (Bigelow and Schroeder, 1950) -- valid -- Gulf of Mexico pygmy skate, Gulf skate, raya pigmea
  Fistularia commersonii Rüppell, 1838 -- valid -- corneta pintada, reef cornetfish
  Fistularia corneta Gilbert and Starks, 1904 -- valid -- corneta flautera, deepwater cornetfish
  Fistularia petimba Lacepède, 1803 -- valid -- corneta colorada, Pacific cornetfish, red cornetfish, smooth flutemouth, trompetero
  Fistularia tabacaria Linnaeus, 1758 -- valid -- bluespotted cornetfish, corneta azul, pez corneta, tobacco trumpetfish
  Fistulariidae -- valid -- cornetas, cornetfishes, fistulaires
  Floridichthys carpio (Günther, 1866) -- valid -- goldspotted killifish, ocellated killifish
  Floridichthys polyommus Hubbs, 1936 -- valid -- bolín yucateco, ocellated killifish
  Fodiator acutus (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- sharpchin flyingfish, volador picudo
  Foetorepus agassizii (Goode and Bean in Agassiz, 1888) -- valid -- spotfin dragonet
  Foetorepus goodenbeani Nakabo and Hartel, 1999 -- valid -- palefin dragonet
  Forbesichthys agassizii (Putnam, 1872) -- valid -- spring cavefish
  Forcipiger flavissimus Jordan and McGregor in Jordan and Evermann, 1898 -- valid -- forcepsfish, longnose butterflyfish, mariposa hocicona
  Fundulidae Jordan and Gilbert, 1882 -- valid -- fondules, fundulines, killifishes, sardinillas, topminnows
  Fundulus albolineatus Gilbert, 1891 -- valid -- whiteline topminnow
  Fundulus bifax Cashner and Rogers in Cashner, Rogers and Grady, 1988 -- valid -- stippled studfish
  Fundulus blairae Wiley and Hall, 1975 -- valid -- southern starhead topminnow, western starhead topminnow
  Fundulus catenatus (Storer, 1846) -- valid -- northern studfish
  Fundulus chrysotus (Günther, 1866) -- valid -- golden topminnow
  Fundulus cingulatus Valenciennes in Cuvier and Valenciennes, 1846 -- valid -- banded topminnow
  Fundulus confluentus Goode and Bean in Goode, 1879 -- valid -- marsh killifish
  Fundulus diaphanus (Lesueur, 1817) -- valid -- banded killifish, fondule barré
  Fundulus dispar (Agassiz, 1854) -- valid -- northern starhead topminnow, starhead topminnow
  Fundulus escambiae (Bollman, 1887) -- valid -- russetfin topminnow
  Fundulus euryzonus Suttkus and Cashner, 1981 -- valid -- broadstripe topminnow
  Fundulus grandis Baird and Girard, 1853 -- valid -- Gulf killifish, sardinilla del Pánuco
  Fundulus grandissimus Hubbs, 1936 -- valid -- giant killifish, sardinilla gigante
  Fundulus heteroclitus (Linnaeus, 1766) -- valid -- choquemort, mummichog
  Fundulus jenkinsi (Evermann, 1892) -- valid -- saltmarsh topminnow, sardinilla del Bravo
  Fundulus julisia Williams and Etnier, 1982 -- valid -- Barrens topminnow
  Fundulus kansae Garman, 1895 -- valid -- northern plains killifish
  Fundulus lima Vaillant, 1894 -- valid -- Baja California killifish, sardinilla peninsular
  Fundulus lineolatus (Agassiz, 1854) -- valid -- lined topminnow
  Fundulus luciae (Baird, 1855) -- valid -- spotfin killifish
  Fundulus majalis (Walbaum, 1792) -- valid -- striped killifish
  Fundulus notatus (Rafinesque, 1820) -- valid -- blackstripe topminnow
  Fundulus nottii (Agassiz, 1854) -- invalid -- bayou topminnow, Gulf starhead topminnow, starhead topminnow
  Fundulus olivaceus (Storer, 1845) -- valid -- blackspotted topminnow
  Fundulus parvipinnis Girard, 1854 -- valid -- California killifish, sardinilla chococo
  Fundulus persimilis Miller, 1955 -- valid -- sardinilla yucateca, Yucatan killifish
  Fundulus pulvereus (Evermann, 1892) -- valid -- bayou killifish, sardinilla mulata
  Fundulus rathbuni Jordan and Meek in Jordan, 1889 -- valid -- speckled killifish
  Fundulus rubrifrons (Jordan, 1880) -- invalid -- redface topminnow
  Fundulus sciadicus Cope, 1865 -- valid -- plains topminnow
  Fundulus seminolis Girard, 1859 -- valid -- Seminole killifish
  Fundulus similis (Baird and Girard, 1853) -- valid -- longnose killifish, sardinilla narigona
  Fundulus stellifer (Jordan, 1877) -- invalid -- southern studfish
  Fundulus waccamensis Hubbs and Raney, 1946 -- valid -- Waccamaw killifish
  Fundulus zebrinus Jordan and Gilbert, 1883 -- valid -- plains killifish
  Gadidae Rafinesque, 1810 -- valid -- bacalaos, codfishes, cods, morues, true cods
  Gadiformes -- valid -- cods, gadiforms, grenadiers, hakes, merlus, morues
  Gadus macrocephalus Tilesius, 1810 -- valid -- bacalao del Pacifico, morue du Pacifique, Pacific cod
  Gadus morhua Linnaeus, 1758 -- valid -- Atlantic cod, bacalao del Atlántico, cod, morue de l'Atlantique, morue franche, rock cod
  Gadus ogac Richardson, 1836 -- valid -- bacalao de Groenlandia, Greenland cod, morue ogac, ogac, ogac
  Galeichthys peruvianus Lütken, 1874 -- valid -- bagre de faja, Peruvian sea catfish
  Galeocerdo cuvier (Péron and Lesueur in Lesueur, 1822) -- valid -- tiburón tigre, tiger shark, tintorera
  Galeorhinus galeus (Linnaeus, 1758) -- valid -- tiburón aceitoso, tope, tope shark
  Galeus arae (Nichols, 1927) -- valid -- gatica manchada, marbled cat shark, marbled catshark, roughtail cat shark, roughtail catshark
  Gambusia affinis (Baird and Girard, 1853) -- valid -- guayacón mosquito, mosquitofish, western mosquitofish
  Gambusia alvarezi Hubbs and Springer, 1957 -- valid -- guayacón de San Gregorio, yellowfin gambusia
  Gambusia amistadensis Peden, 1973 -- valid -- Amistad gambusia
  Gambusia atrora Rosen and Bailey, 1963 -- valid -- blackfin gambusia, guayacón de San Luis
  Gambusia aurata Miller and Minckley, 1970 -- valid -- golden gambusia, guayacón dorado
  Gambusia eurystoma Miller, 1975 -- valid -- guayacón del Azufre, widemouth gambusia
  Gambusia gaigei Hubbs, 1929 -- valid -- Big Bend gambusia
  Gambusia geiseri Hubbs and Hubbs in Hubbs and Springer, 1957 -- valid -- largespring gambusia
  Gambusia georgei Hubbs and Peden, 1969 -- valid -- San Marcos gambusia
  Gambusia heterochir Hubbs, 1957 -- valid -- Clear Creek gambusia
  Gambusia holbrooki Girard, 1859 -- invalid -- eastern mosquitofish
  Gambusia hurtadoi Hubbs and Springer, 1957 -- valid -- crescent gambusia, guayacón de Hacienda de Dolores
  Gambusia krumholzi Minckley, 1963 -- valid -- guayacón del Nava, spotfin gambusia
  Gambusia longispinis Minckley, 1962 -- valid -- Cuatro Cienegas gambusia, guayacón de Cuatro Ciénegas
  Gambusia marshi Minckley and Craddock in Minckley, 1962 -- valid -- guayacón de Nadadores, robust gambusia
  Gambusia nobilis (Baird and Girard, 1853) -- valid -- Pecos gambusia
  Gambusia panuco Hubbs, 1926 -- valid -- guayacón del Pánuco, Panuco gambusia
  Gambusia regani Hubbs, 1926 -- valid -- Forlon gambusia, guayacón del Forlón
  Gambusia rhizophorae Rivas, 1969 -- valid -- mangrove gambusia
  Gambusia senilis Girard, 1859 -- valid -- blotched gambusia, guayacón del Bravo
  Gambusia sexradiata Hubbs, 1936 -- valid -- guayacón del sureste, stippled gambusia
  Gambusia speciosa Girard, 1859 -- valid -- guayacón de Nuevo León, southwestern mosquitofish, Tex-Mex gambusia
  Gambusia vittata Hubbs, 1926 -- valid -- guayacón de Victoria, Gulf gambusia
  Gambusia yucatana Regan, 1914 -- valid -- guayacón yucateco, Yucatan gambusia, yucatan gambusia
  Gasterosteidae -- valid -- épinoches, espinochos, sticklebacks
  Gasterosteus aculeatus Linnaeus, 1758 -- valid -- Alaskan stickleback, épinoche à trois épines, espinocho, threespine stickleback
  Gasterosteus wheatlandi Putnam, 1867 -- valid -- blackspotted stickleback, épinoche tachetée
  Gastropsetta frontalis Bean, 1895 -- valid -- lenguado gambero, Shrimp Flounder, shrimp flounder
  Gempylidae -- valid -- escolares, escolars, snake mackerels
  Gempylus serpens Cuvier, 1829 -- valid -- dómine añil, escolar de canal, snake mackerel
  Genyonemus lineatus (Ayres, 1855) -- valid -- corvineta blanca, white croaker
  Geophagus surinamensis (Bloch, 1791) -- valid -- redstriped eartheater
  Gephyroberyx darwinii (Johnson, 1866) -- valid -- big roughie, big roughy, carajuelo de fondo
  Gerreidae -- valid -- blanches, mojarras, mojarras
  Gerres cinereus (Walbaum, 1792) -- valid -- mojarra blanca, mojarra trompetera, yellowfin mojarra
  Gibbonsia elegans (Cooper, 1864) -- valid -- sargacero manchado, spotted kelpfish
  Gibbonsia metzi Hubbs, 1927 -- valid -- sargacero rayado, striped kelpfish
  Gibbonsia montereyensis Hubbs, 1927 -- valid -- crevice kelpfish, sargacero de Monterey, scarlet kelpfish
  Gila alvordensis Hubbs and Miller, 1972 -- invalid -- Alvord chub
  Gila atraria (Girard, 1856) -- valid -- Utah chub
  Gila bicolor (Girard, 1856) -- invalid -- tui chub
  Gila boraxobius Williams and Bond, 1980 -- invalid -- Borax Lake chub
  Gila brevicauda Norris, Fischer and Minckley, 2003 -- valid -- carpa colicorta, shorttail chub
  Gila coerulea (Girard, 1856) -- valid -- blue chub
  Gila conspersa Garman, 1881 -- valid -- carpa Mayrán, Nazas chub
  Gila crassicauda (Baird and Girard in Girard, 1854) -- valid -- thicktail chub
  Gila cypha Miller, 1946 -- valid -- humpback chub
  Gila ditaenia Miller, 1945 -- valid -- carpa sonorense, Sonora chub
  Gila elegans Baird and Girard, 1853 -- valid -- bonytail, bonytail chub, carpa elegante
  Gila eremica DeMarais, 1991 -- valid -- carpa del desierto, desert chub
  Gila intermedia (Girard, 1856) -- valid -- carpa del Gila, Gila chub
  Gila minacae Meek, 1902 -- valid -- carpa cola redonda mexicana, Mexican roundtail chub
  Gila modesta (Garman, 1881) -- valid -- carpa de Saltillo, Saltillo chub
  Gila nigra Cope in Cope and Yarrow, 1875 -- valid -- headwater chub
  Gila nigrescens (Girard, 1856) -- valid -- carpa de Chihuahua, Chihuahua chub
  Gila orcuttii (Eigenmann and Eigenmann, 1890) -- valid -- arroyo chub
  Gila pandora (Cope, 1872) -- valid -- Rio Grande chub
  Gila pulchra (Girard, 1856) -- valid -- carpa del Conchos, Conchos chub
  Gila purpurea (Girard, 1856) -- valid -- carpa púrpura, Yaqui chub
  Gila robusta Baird and Girard, 1853 -- valid -- roundtail chub
  Gila seminuda Cope and Yarrow, 1875 -- valid -- Virgin chub, Virgin River chub
  Gillellus arenicola Gilbert, 1890 -- valid -- miraestrellas fina, sandloving stargazer
  Gillellus greyae Kanazawa, 1952 -- valid -- arrow stargazer, miraestrellas flecha, mirón flecha
  Gillellus healae Dawson, 1982 -- valid -- masked stargazer
  Gillellus ornatus Gilbert, 1892 -- valid -- miraestrellas ornada, ornate stargazer
  Gillellus searcheri Dawson, 1977 -- valid -- miraestrellas rayada, Searcher stargazer
  Gillellus semicinctus Gilbert, 1890 -- valid -- halfbanded stargazer, miraestrellas mediafranjada
  Gillellus uranidea Böhlke, 1968 -- valid -- miraestrellas ojiverrugado, warteye stargazer
  Gillichthys mirabilis Cooper, 1864 -- valid -- chupalodo grande, longjaw mudsucker
  Gillichthys seta (Ginsburg, 1938) -- valid -- chupalodo chico, shortjaw mudsucker
  Ginglymostoma cirratum (Bonnaterre, 1788) -- valid -- nurse shark, tiburón gata
  Ginglymostomatidae Gill, 1862 -- valid -- gatas, nurse sharks, requins-nourrices
  Ginsburgellus novemlineatus (Fowler, 1950) -- valid -- gobio nueve rayas, ninelined goby, ninelined goby
  Girardinichthys multiradiatus (Meek, 1904) -- valid -- darkedged splitfin, mexcalpique de Zempoala
  Girardinichthys viviparus (Bustamante, 1837) -- valid -- Chapultepec splitfin, mexcalpique
  Girella nigricans (Ayres, 1860) -- valid -- chopa verde, opaleye
  Girella simplicidens Osburn and Nichols, 1916 -- valid -- chopa ojo azul, Gulf opaleye
  Glossanodon pygmaeus Cohen, 1958 -- valid -- pygmy argentine
  Glyptocephalus cynoglossus (Linnaeus, 1758) -- valid -- gray sole, plie grise, Witch Flounder, witch flounder
  Glyptocephalus zachirus Lockington, 1879 -- valid -- platija rey, plie royale, Rex Sole, rex sole
  Gnathagnus egregius (Jordan and Thompson, 1905) -- invalid -- freckled stargazer
  Gnathanodon speciosus (Forsskål, 1775) -- valid -- golden trevally, jurel dorado, mojarra dorada, yellow jack
  Gnatholepis thompsoni Jordan, 1904 -- valid -- gobio puntadorada, gobio puntidorado, goldspot goby
  Gnathophis bathytopos Smith and Kanazawa, 1977 -- valid -- blackgut conger
  Gnathophis bracheatopos Smith and Kanazawa, 1977 -- valid -- longeye conger
  Gnathophis cinctus (Garman, 1899) -- valid -- congrio cola tiesa, hardtail conger
  Gobiesocidae -- valid -- chupapiedras, clingfishes, crampons
  Gobiesox adustus Jordan and Gilbert, 1882 -- valid -- chupapiedra panámica, Panamic clingfish
  Gobiesox aethus (Briggs, 1951) -- valid -- chupapiedra de Clarión, Clarion clingfish
  Gobiesox barbatulus Starks, 1913 -- valid -- chupapiedra aristada, lappetlip clingfish
  Gobiesox canidens (Briggs, 1951) -- valid -- chupapiedra de Socorro, Socorro clingfish
  Gobiesox eugrammus Briggs, 1955 -- valid -- chupapiedra estriada, lined clingfish
  Gobiesox fluviatilis Briggs and Miller, 1960 -- valid -- cucharita de río, mountain clingfish
  Gobiesox juniperoserrai Espinosa Pérez and Castro-Aguirre, 1996 -- valid -- cucharita peninsular, peninsular clingfish
  Gobiesox maeandricus (Girard, 1858) -- valid -- chupapiedra norteña, northern clingfish
  Gobiesox marijeanae Briggs, 1960 -- valid -- chupapiedra solita, lonely clingfish
  Gobiesox mexicanus Briggs and Miller, 1960 -- valid -- cucharita mexicana, Mexican clingfish
  Gobiesox papillifer Gilbert, 1890 -- valid -- bearded clingfish, chupapiedra barbona
  Gobiesox pinniger Gilbert, 1890 -- valid -- chupapiedra renacuajo, tadpole clingfish
  Gobiesox punctulatus (Poey, 1876) -- valid -- chupapiedra punteada, pequita punteada, stippled clingfish
  Gobiesox rhessodon Smith, 1881 -- valid -- California clingfish, chupapiedra californiana
  Gobiesox schultzi Briggs, 1951 -- valid -- chupapiedra labioliso, smoothlip clingfish
  Gobiesox strumosus Cope, 1870 -- valid -- cazoleta, skilletfish
  Gobiidae -- valid -- gobies, gobies, gobios, true gobies
  Gobiomorus dormitor Lacepède, 1800 -- valid -- bigmouth sleeper, guavina bocón, guavina de ley
  Gobiomorus maculatus (Günther, 1859) -- valid -- dormilón manchado, Pacific sleeper
  Gobiomorus polylepis Ginsburg, 1953 -- valid -- finescale sleeper, guavina cristalina
  Gobionellus microdon (Gilbert, 1892) -- valid -- gobio cola de palma, palmtail goby
  Gobionellus oceanicus (Pallas, 1770) -- valid -- esmeralda de mar, highfin goby, madrejuile flecha, sharptail goby, slim goby
  Gobiosoma bosc (Lacepède, 1800) -- valid -- gobio desnudo, naked goby
  Gobiosoma chiquita (Jenkins and Evermann, 1889) -- valid -- gobio chiquito, Sonora goby
  Gobiosoma ginsburgi Hildebrand and Schroeder, 1928 -- valid -- seaboard goby
  Gobiosoma grosvenori (Robins, 1964) -- valid -- rockcut goby
  Gobiosoma longipala Ginsburg, 1933 -- valid -- twoscale goby
  Gobiosoma nudum (Meek and Hildebrand, 1928) -- valid -- gobio bulto, knobchin goby
  Gobiosoma paradoxum (Günther, 1861) -- valid -- gobio paradoja, paradox goby
  Gobiosoma robustum Ginsburg, 1933 -- valid -- code goby, gobio clave
  Gobiosoma yucatanum Dawson, 1971 -- valid -- gobio yucateco, Yucatan goby
  Gobulus crescentalis (Gilbert, 1892) -- valid -- crescent goby, gobio creciente
  Gobulus hancocki Ginsburg, 1938 -- valid -- gobio invertido, sandtop goby
  Gobulus myersi Ginsburg, 1939 -- valid -- paleback goby
  Gonioplectrus hispanus (Cuvier in Cuvier and Valenciennes, 1828) -- valid -- biajaiba de lo alto, cherna bandera, Spanish flag
  Goodea atripinnis Jordan, 1880 -- valid -- blackfin goodea, tiro
  Goodea gracilis Hubbs and Turner, 1939 -- valid -- dusky goodea, tiro oscuro
  Goodea luitpoldii (Steindachner, 1894) -- valid -- green goodea, tiro de Pátzcuaro
  Goodeidae Jordan, 1923 -- valid -- goodeid topminnows, goodéidés, goodeids, mexcalpiques, splitfins
  Gordiichthys ergodes McCosker, Böhlke and Böhlke, 1989 -- valid -- irksome eel, tieso fastidioso
  Gordiichthys irretitus Jordan and Davis, 1891 -- valid -- horsehair eel, tieso pelo de burro
  Gordiichthys leibyi McCosker and Böhlke, 1984 -- valid -- string eel, tieso bobo
  Gorgasia punctata Meek and Hildebrand, 1923 -- valid -- congrio punteado, peppered garden eel
  Gramma linki Starck and Colin, 1978 -- valid -- cabrilleta mejilla amarilla, linki, yellowcheek basslet, yellowlined basslet
  Gramma loreto Poey, 1868 -- valid -- fairy basslet, fairy basslet, loreto, royal gramma, royal gramma
  Gramma melacara Böhlke and Randall, 1963 -- valid -- blackcap basslet, blackcap basslet, cabrilleta violeta, gramma violeta
  Grammatidae -- valid -- basslets, cabrilletas, grammatidés
  Grammicolepis brachiusculus Poey, 1873 -- valid -- oropel, thorny tinselfish
  Grammonus claudei (de la Torre y Huerta, 1930) -- valid -- brótula parda, reef-cave brotula
  Grammonus diagrammus (Heller and Snodgrass, 1903) -- valid -- brótula púrpura, purple brotula
  Guavina guavina (Valenciennes in Cuvier and Valenciennes, 1837) -- valid -- Atlantic gauvina, guavina, guavina, guavina cabezona
  Gunterichthys longipenis Dawson, 1966 -- valid -- gold brotula
  Gymnachirus melas Nichols, 1916 -- valid -- naked sole, Naked Sole, suela desnuda
  Gymnachirus nudus Kaup, 1858 -- valid -- acedía nudosa, flabby sole, Flabby Sole, suela fofa
  Gymnachirus texae (Gunter, 1936) -- valid -- fringed sole, Fringed Sole, suela texana
  Gymnelus hemifasciatus Andriashev, 1937 -- valid -- halfbarred pout
  Gymnelus popovi (Taranetz and Andriashev, 1935) -- valid -- Aleutian pout
  Gymnelus retrodorsalis Le Danois, 1913 -- valid -- aurora pout
  Gymnelus viridis (Fabricius, 1780) -- valid -- fish doctor, unernak caméléon
  Gymnocanthus detrisus Gilbert and Burke, 1912 -- valid -- purplegray sculpin
  Gymnocanthus galeatus Bean, 1881 -- valid -- armorhead sculpin
  Gymnocanthus pistilliger (Pallas, 1814) -- valid -- thread sculpin, threaded sculpin
  Gymnocanthus tricuspis (Reinhardt, 1830) -- valid -- Arctic staghorn sculpin, tricorne arctique
  Gymnocephalus cernuus (Linnaeus, 1758) -- valid -- blacktail, pope, ruffe
  Gymnoclinus cristulatus Gilbert and Burke, 1912 -- valid -- trident prickleback
  Gymnomuraena zebra (Shaw in Shaw and Nodder, 1797) -- valid -- morena cebra, zebra moray
  Gymnothorax castaneus (Jordan and Gilbert, 1883) -- valid -- morena verde panámica, Panamic green moray
  Gymnothorax conspersus Poey, 1867 -- valid -- saddled moray
  Gymnothorax dovii (Günther, 1870) -- valid -- finespotted moray, morena pintita
  Gymnothorax equatorialis (Hildebrand, 1946) -- valid -- morena cola pintada, spottail moray
  Gymnothorax funebris Ranzani, 1839 -- valid -- green moray, morena verde
  Gymnothorax hubbsi Böhlke and Böhlke, 1977 -- valid -- lichen moray, morena liquen
  Gymnothorax kolpos Böhlke and Böhlke, 1980 -- valid -- blacktail moray, morena cola negra
  Gymnothorax maderensis (Johnson, 1862) -- valid -- sharktooth moray
  Gymnothorax miliaris (Kaup, 1856) -- valid -- conger moray, goldentail moray, morena cola dorada, morena de cola dorada
  Gymnothorax mordax (Ayres, 1859) -- valid -- California moray, morena de California
  Gymnothorax moringa (Cuvier, 1829) -- valid -- morena manchada, spotted moray
  Gymnothorax nigromarginatus (Girard, 1858) -- valid -- blackedge moray, morena de margen negro
  Gymnothorax ocellatus Agassiz in Spix and Agassiz, 1831 -- valid -- Caribbean ocellated moray, moray eel, morena ocelada, ocellated moray, spotted moray
  Gymnothorax panamensis (Steindachner, 1876) -- valid -- masked moray, morena mapache
  Gymnothorax polygonius Poey, 1875 -- valid -- morena de polígonos, morena polígona, polygon moray, reticulated moray eel
  Gymnothorax saxicola Jordan and Davis, 1891 -- valid -- honeycomb moray, morena panal, morena punteada, ocellated moray
  Gymnothorax verrilli (Jordan and Gilbert, 1883) -- valid -- morena de borde blanco, white-edged moray
  Gymnothorax vicinus (Castelnau, 1855) -- valid -- morena amarilla, morena de boca púrpura, purplemouth moray
  Gymnotidae -- valid -- cuchillos, electric eels, knife-fishes, naked-back knifefishes, nakedback knifefishes, poissons-couteaux
  Gymnotus maculosus Albert and Miller, 1995 -- valid -- cuchillo, spotted knifefish
  Gymnura altavela (Linnaeus, 1758) -- valid -- raya de papel, spiny butterfly ray
  Gymnura crebripunctata (Peters, 1869) -- valid -- longsnout butterfly ray, raya mariposa picuda
  Gymnura marmorata (Cooper, 1864) -- valid -- California butterfly ray, raya mariposa californiana
  Gymnura micrura (Bloch and Schneider, 1801) -- valid -- raya cola de rata, smooth butterfly ray
  Gymnuridae Fowler, 1934 -- valid -- butterfly rays, raies-papillons, rayas mariposa
  Haemulidae -- valid -- burros y roncos, grogneurs, grunts
  Haemulon album Cuvier in Cuvier and Valenciennes, 1830 -- valid -- jallao, margate, ronco jallao
  Haemulon aurolineatum Cuvier in Cuvier and Valenciennes, 1830 -- valid -- jeniguano bocón, ronco jeníguaro, tomtate
  Haemulon bonariense Cuvier in Cuvier and Valenciennes, 1830 -- valid -- black grunt, ronco prieto
  Haemulon carbonarium Poey, 1860 -- valid -- caesar grunt, ronco carbonero
  Haemulon chrysargyreum Günther, 1859 -- valid -- jeníguano amarillo, ronco boquichica, smallmouth grunt
  Haemulon flaviguttatum Gill, 1862 -- valid -- burro de Cortés, Cortez grunt
  Haemulon flavolineatum (Desmarest, 1823) -- valid -- French grunt, ronco condenado
  Haemulon macrostomum Günther, 1859 -- valid -- jeníguano español, Spanish grunt
  Haemulon maculicauda (Gill, 1862) -- valid -- burro rasposo, spottail grunt
  Haemulon melanurum (Linnaeus, 1758) -- valid -- cottonwick, ronco de lomo prieto, ronco lomo manchado
  Haemulon parra (Desmarest, 1823) -- valid -- boquilla, ronco blanco, sailors choice
  Haemulon plumierii (Lacepède, 1801) -- valid -- chac-chí, ronco arará, white grunt
  Haemulon sciurus (Shaw, 1803) -- valid -- bluestriped grunt, ronco amarillo, ronco carite
  Haemulon scudderii Gill, 1862 -- valid -- burro pecoso, majarra prieta, mojarra grunt
  Haemulon sexfasciatum Gill, 1862 -- valid -- barred grunt, burro almejero, graybar grunt
  Haemulon steindachneri (Jordan and Gilbert, 1882) -- valid -- burro latino, Latin grunt
  Haemulon striatum (Linnaeus, 1758) -- valid -- jeníguano rayado, ronco pinto, striped grunt
  Haemulopsis axillaris (Steindachner, 1869) -- valid -- burro blanco, ronco callana, yellowstripe grunt
  Haemulopsis elongatus (Steindachner, 1879) -- valid -- elongate grunt, ronco alargado
  Haemulopsis leuciscus (Günther, 1864) -- valid -- burrito, raucous grunt, ronco ruco
  Haemulopsis nitidus (Steindachner, 1869) -- valid -- ronco brillante, shining grunt
  Halichoeres adustus (Gilbert, 1890) -- valid -- black wrasse, señorita negra
  Halichoeres aestuaricola Bussing, 1972 -- valid -- mangrove wrasse, señorita de manglar
  Halichoeres bathyphilus (Beebe and Tee-Van, 1932) -- valid -- doncella cintaverde, greenband wrasse
  Halichoeres bivittatus (Bloch, 1791) -- valid -- doncella rayada, slippery dick
  Halichoeres caudalis (Poey, 1860) -- valid -- doncella pintada, painted wrasse
  Halichoeres chierchiae Di Caporiacco, 1948 -- valid -- señorita herida, wounded wrasse
  Halichoeres cyanocephalus (Bloch, 1791) -- valid -- doncella cabeciplateada, yellowcheek wrasse
  Halichoeres dispilus (Günther, 1864) -- valid -- chameleon wrasse, señorita camaleón
  Halichoeres garnoti (Valenciennes in Cuvier and Valenciennes, 1839) -- valid -- doncella cabeciamarilla, yellowhead wrasse
  Halichoeres insularis Allen and Robertson, 1992 -- valid -- señorita de Socorro, Socorro wrasse
  Halichoeres maculipinna (Müller and Troschel in Schomburgk, 1848) -- valid -- clown wrasse, doncella payaso
  Halichoeres melanotis (Gilbert, 1890) -- valid -- golden wrasse, señorita dorada
  Halichoeres nicholsi (Jordan and Gilbert, 1882) -- valid -- señorita solterona, spinster wrasse
  Halichoeres notospilus (Günther, 1864) -- valid -- banded wrasse, señorita listada
  Halichoeres pictus (Poey, 1860) -- valid -- doncella arcoiris, rainbow wrasse
  Halichoeres poeyi (Steindachner, 1867) -- valid -- blackear wrasse, doncella ojinegra, doncella orejinegra
  Halichoeres radiatus (Linnaeus, 1758) -- valid -- doncella azulada, doncella pudín, puddingwife
  Halichoeres semicinctus (Ayres, 1859) -- valid -- rock wrasse, señorita piedrera
  Halieutichthys aculeatus (Mitchill, 1818) -- valid -- diablito espinoso, murciélago picudo, pancake batfish
  Haptoclinus apectolophus Böhlke and Robins, 1974 -- valid -- trambollo despeinado, uncombed blenny
  Harengula clupeola (Cuvier, 1829) -- valid -- false herring, false pilchard, sardina escamuda, sardinita carapachona
  Harengula humeralis (Cuvier, 1829) -- valid -- redear herring, redear sardine, sardina de ley, sardinita de ley
  Harengula jaguana Poey, 1865 -- valid -- sardina escamudina, sardinita vivita escamuda, scaled herring, scaled sardine
  Harengula thrissina (Jordan and Gilbert, 1882) -- valid -- flatiron herring, Pacific flatiron herring, sardinita plumilla
  Helicolenus dactylopterus (Delaroche, 1809) -- valid -- blackbelly rosefish
  Hemanthias aureorubens (Longley, 1935) -- valid -- cabrilla cinta, streamer bass
  Hemanthias leptus (Ginsburg, 1952) -- valid -- cabrilla robalo, longtail bass
  Hemanthias peruanus (Steindachner, 1875) -- valid -- cabrilla doblecola, splittail bass
  Hemanthias signifer (Garman, 1899) -- valid -- cabrilla doncella, hookthroat bass, splittail bass
  Hemanthias vivanus (Jordan and Swain, 1885) -- valid -- barbero rojo, red barbier
  Hemicaranx amblyrhynchus (Cuvier in Cuvier and Valenciennes, 1833) -- valid -- bluntnose jack, chicharra, jurelito chato
  Hemicaranx leucurus (Günther, 1864) -- valid -- jurelito aletiamarilla, yellowfin jack
  Hemicaranx zelotes Gilbert in Jordan and Evermann, 1898 -- valid -- blackfin jack, jurelito chocho
  Hemichromis letourneuxi Sauvage, 1880 -- valid -- African jewelfish, north African jewelfish
  Hemilepidotus hemilepidotus (Tilesius, 1811) -- valid -- red Irish lord
  Hemilepidotus jordani Bean, 1881 -- valid -- yellow Irish lord
  Hemilepidotus papilio (Bean, 1880) -- invalid -- butterfly sculpin
  Hemilepidotus spinosus Ayres, 1854 -- valid -- brown Irish lord
  Hemilepidotus zapus Gilbert and Burke, 1912 -- valid -- longfin Irish lord
  Hemiramphidae -- valid -- demi-becs, halfbeaks, pajaritos
  Hemiramphus balao Lesueur, 1821 -- valid -- agujeta balao, balao, escribano balao
  Hemiramphus brasiliensis (Linnaeus, 1758) -- valid -- agujeta brasileña, ballyhoo, escribano de aletas rojas
  Hemiramphus saltator Gilbert and Starks, 1904 -- valid -- longfin halfbeak, pajarito saltador
  Hemitremia flammea (Jordan and Gilbert in Jordan, 1878) -- valid -- flame chub
  Hemitripteridae -- valid -- charrascos cuervo, hémitriptères, searavens
  Hemitripterus americanus (Gmelin, 1789) -- valid -- hémitriptère atlantique, sea raven, sea sculpin
  Hemitripterus bolini (Myers, 1934) -- valid -- bigmouth sculpin
  Heptranchias perlo (Bonnaterre, 1788) -- valid -- sharpnose sevengill shark, tiburón de 7 branchias, tiburón de siete branquias
  Hermosilla azurea Jenkins and Evermann, 1889 -- valid -- chopa bonita, zebra perch, zebraperch
  Heros severus Heckel, 1840 -- valid -- banded cichlid, banded cichlid
  Herpetoichthys fossatus (Myers and Wade, 1941) -- valid -- mustachioed snake eel, tieso bigotón
  Hesperoleucus symmetricus (Baird and Girard, 1854) -- valid -- California roach
  Heterandria bimaculata (Heckel, 1848) -- valid -- guatopote manchado, spottail killifish, twospot livebearer
  Heterandria formosa Girard, 1859 -- valid -- dwarf livebearer, least killifish
  Heterandria jonesii (Günther, 1874) -- valid -- barred killifish, guatopote listado
  Heterenchelyidae -- valid -- anguilas de fango, anguilles de vase, mud eels
  Heteristius cinctus (Osburn and Nichols, 1916) -- valid -- banded stargazer, miraestrellas vendada
  Heteroconger canabus (Cowan and Rosenblatt, 1974) -- valid -- Cape garden eel, congrio del Cabo
  Heteroconger digueti (Pellegrin, 1923) -- valid -- congrio de Cortés, Cortez garden eel
  Heteroconger longissimus Günther, 1870 -- valid -- brown garden eel, congrio de jardín
  Heteroconger luteolus Smith, 1989 -- valid -- yellow garden eel
  Heteroconger pellegrini Castle, 1999 -- valid -- congrio pecoso, speckled garden eel
  Heterodontidae Gray, 1851 -- valid -- bullhead sharks, horn sharks, Port Jackson sharks, requins cornus, tiburones cornudos
  Heterodontus francisci (Girard, 1855) -- valid -- dormilón cornudo, horn shark, requin dormeur cornu, tiburón puerco
  Heterodontus mexicanus Taylor and Castro-Aguirre, 1972 -- valid -- Mexican horn shark, Mexican hornshark, tiburón perro
  Heterophallus rachovii Regan, 1914 -- invalid -- Coatzacoalcos gambusia, guayacón jarocho, rachow's livebearer, rachow's livebearer
  Heteropriacanthus cruentatus (Lacepède, 1801) -- valid -- catalufa espinosa, catalufa roquera, glasseye snapper
  Heterostichus rostratus Girard, 1854 -- valid -- giant kelpfish, sargacero gigante
  Hexagrammidae -- valid -- greenlings, molvas, sourcils
  Hexagrammos decagrammus (Pallas, 1810) -- valid -- kelp greenling
  Hexagrammos lagocephalus (Pallas, 1810) -- valid -- rock greenling
  Hexagrammos octogrammus (Pallas, 1814) -- valid -- masked greenling
  Hexagrammos stelleri Tilesius, 1810 -- valid -- whitespotted greenling
  Hexanchidae Gray, 1851 -- valid -- cow sharks, grisets, sevengill sharks, sixgill sharks, tiburones cañabota
  Hexanchus griseus (Bonnaterre, 1788) -- valid -- bluntnose sixgill shark, marrajo, sixgill shark, tiburón de seis branquias
  Hexanchus nakamurai Teng, 1962 -- valid -- bigeye sixgill shark, cazón de seis branquias
  Himantolophidae -- valid -- deepsea anglerfishes, footballfishes, peces balón, poissons-football
  Himantolophus groenlandicus Reinhardt, 1837 -- valid -- Atlantic footballfish
  Himantolophus sagamius (Tanaka, 1918) -- valid -- Pacific footballfish
  Himantura pacifica (Beebe and Tee-van, 1941) -- valid -- Pacific whiptail stingray, raya coluda del Pacífico
  Himantura schmardae (Werner, 1904) -- valid -- Caribbean whiptail stingray, Chupare stingray, lebisa, raya coluda caribeña
  Hiodon alosoides (Rafinesque, 1819) -- valid -- goldeye, laquaiche aux yeux d'or
  Hiodon tergisus Lesueur, 1818 -- valid -- laquaiche argentée, mooneye
  Hiodontidae -- valid -- laquaiches, mooneyes, ojos de luna
  Hippocampus erectus Perry, 1810 -- valid -- caballito erecto, caballito estriado, lined seahorse, spotted seahorse
  Hippocampus ingens Girard, 1858 -- valid -- caballito del Pacífico, Pacific giant seahorse, Pacific seahorse
  Hippocampus reidi Ginsburg, 1933 -- valid -- caballito hocico largo, caballito narizon, longsnout seahorse
  Hippocampus zosterae Jordan and Gilbert, 1882 -- valid -- caballito enano, caballito oliváceo, dwarf seahorse, little seahorse, pygmy seahorse
  Hippoglossina bollmani Gilbert, 1890 -- valid -- lenguado pintado, spotted flounder, Spotted Flounder
  Hippoglossina stomata Eigenmann & Eigenmann, 1890 -- valid -- bigmouth sole, Bigmouth Sole, lenguado bocón
  Hippoglossina tetrophthalma (Gilbert, 1890) -- valid -- foureye flounder, Foureye Flounder, lenguado cuatrojos
  Hippoglossoides elassodon Jordan & Gilbert, 1880 -- valid -- flathead sole, Flathead Sole, plie à tête plate
  Hippoglossoides platessoides (Fabricius, 1780) -- valid -- American dab, American plaice, American Plaice, Canadian plaice, dab, plie canadienne
  Hippoglossoides robustus Gill & Townsend, 1897 -- valid -- Bering flounder, Bering Flounder, plie de Béring
  Hippoglossus hippoglossus (Linnaeus, 1758) -- valid -- Atlantic halibut, Atlantic Halibut, flétan atlantique
  Hippoglossus stenolepis Schmidt, 1904 -- valid -- alabato del Pacífico, flétan du Pacifique, Pacific Halibut, Pacific halibut
  Hirundichthys affinis (Günther, 1866) -- valid -- fourwing flyingfish, volador de 4 alas, volador golondrina
  Hirundichthys marginatus (Nichols and Breder, 1928) -- valid -- bladewing flyingfish, volador ala navaja
  Hirundichthys rondeletii (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- blackwing flyingfish, brownwinged flyingfish, nonsuch flyingfish, volador ala negra, volador de alas negras
  Hirundichthys speculiger (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- mirrorwing flyingfish, volador espejo
  Histrio histrio (Linnaeus, 1758) -- valid -- pez sargazo, sargassum frogfish, sargassumfish
  Holacanthus bermudensis Goode, 1876 -- valid -- blue angelfish, chabelita azul, isabelita azul
  Holacanthus ciliaris (Linnaeus, 1758) -- valid -- ángel reina, isabelita reina, queen angelfish
  Holacanthus clarionensis Gilbert, 1891 -- valid -- ángel de Clarión, Clarion angelfish
  Holacanthus passer Valenciennes, 1846 -- valid -- ángel real, king angelfish, whitestripe angelfish
  Holacanthus tricolor (Bloch, 1795) -- valid -- chabelita tricolor, rock beauty, vaqueta de dos colores
  Hollardia meadi Tyler, 1966 -- valid -- rombo pardo, Spotted Spikefish, spotted spikefish
  Holocentridae -- valid -- candiles, marignans, soldierfishes, squirrelfishes
  Holocentrus adscensionis (Osbeck, 1765) -- valid -- candil de vidrio, carajuelo de ascención, squirrelfish
  Holocentrus rufus (Walbaum, 1792) -- valid -- candil rufo, carajuelo rufo, longspine squirrelfish
  Holocephali -- valid -- cartilaginous fishes, chimaeras
  Hoplopagrus guentherii Gill, 1862 -- valid -- barred pargo, Mexican barred snapper, pargo coconaco, striped pargo
  Hoplosternum littorale (Hancock, 1828) -- valid -- brown hoplo
  Hoplosternum littoralis (Hancock, 1828) -- invalid -- brown hoplo
  Hoplunnis diomediana Goode and Bean, 1896 -- valid -- blacktail pike-conger, blacktail pikeconger, serpentina albatros
  Hoplunnis macrura Ginsburg, 1951 -- valid -- freckled pike-conger, freckled pikeconger, serpentina cola grande, silver conger
  Hoplunnis pacifica Lane and Stewart, 1968 -- valid -- serpentina plateada, silver pikeconger
  Hoplunnis tenuis Ginsburg, 1951 -- valid -- congrio colilargo, serpentina dientona, spotted pike-conger, spotted pikeconger
  Hubbsina turneri de Buen, 1940 -- invalid -- highland splitfin, mexcalpique michoacano, Turner's hochlandkarpfling
  Hybognathus amarus (Girard, 1856) -- valid -- carpa Chamizal, Rio Grande silvery minnow
  Hybognathus argyritis Girard, 1856 -- valid -- western silvery minnow
  Hybognathus hankinsoni Hubbs in Jordan, 1929 -- valid -- brassy minnow, méné laiton
  Hybognathus hayi Jordan, 1885 -- valid -- cypress minnow
  Hybognathus nuchalis Agassiz, 1855 -- valid -- méné d'argent, Mississippi silvery minnow
  Hybognathus placitus Girard, 1856 -- valid -- plains minnow
  Hybognathus regius Girard, 1856 -- valid -- eastern silvery minnow, méné d'argent
  Hybopsis amblops (Rafinesque, 1820) -- valid -- bigeye chub
  Hybopsis amnis (Hubbs and Greene in Hubbs, 1951) -- valid -- pallid chub, pallid shiner
  Hybopsis boucardi (Günther, 1868) -- valid -- Balsas shiner, carpita del Balsas
  Hybopsis dorsalis Agassiz, 1854 -- valid -- bigmouth shiner
  Hybopsis hypsinotus (Cope, 1870) -- valid -- highback chub
  Hybopsis lineapunctata Clemmer and Suttkus, 1971 -- valid -- lined chub
  Hybopsis rubrifrons (Jordan, 1877) -- valid -- rosyface chub
  Hybopsis winchelli Girard, 1856 -- valid -- clear chub
  Hydrolagus colliei (Lay and Bennett, 1839) -- valid -- quimera manchada, spotted ratfish
  Hypentelium etowanum (Jordan, 1877) -- valid -- Alabama hog sucker
  Hypentelium nigricans (Lesueur, 1817) -- valid -- northern hog sucker
  Hypentelium roanokense Raney and Lachner, 1947 -- valid -- Roanoke hog sucker
  Hyperoglyphe bythites (Ginsburg, 1954) -- valid -- black driftfish
  Hyperoglyphe perciformis (Mitchill, 1818) -- valid -- barrelfish
  Hyperprosopon anale Agassiz, 1861 -- valid -- mojarra aletimanchada, spotfin surfperch
  Hyperprosopon argenteum Gibbons, 1854 -- valid -- mojarra ojona, walleye surfperch
  Hyperprosopon ellipticum (Gibbons, 1854) -- valid -- mojarra ovalada, silver surfperch
  Hyphessobrycon compressus (Meek, 1904) -- valid -- Maya tetra, sardinita plateada
  Hypleurochilus bermudensis Beebe and Tee-van, 1933 -- valid -- barred blenny, borracho de barras
  Hypleurochilus caudovittatus Bath, 1994 -- valid -- zebratail blenny
  Hypleurochilus geminatus (Wood, 1825) -- valid -- blenio crestado, crested blenny
  Hypleurochilus multifilis (Girard, 1858) -- valid -- borracho plumero, featherduster blenny
  Hypleurochilus pseudoaequipinnis Bath, 1994 -- valid -- borracho ostionero, oyster blenny
  Hypleurochilus springeri Randall, 1966 -- valid -- orangespotted blenny
  Hypoatherina harringtonensis (Goode, 1877) -- valid -- catacuche, reef silverside, tinícalo de arrecife
  Hypomesus nipponensis McAllister, 1963 -- valid -- wakasagi, Wakasagi smelt
  Hypomesus olidus (Pallas, 1814) -- valid -- pond smelt
  Hypomesus pretiosus (Girard, 1854) -- valid -- surf smelt
  Hypomesus transpacificus McAllister, 1963 -- valid -- delta smelt
  Hypophthalmichthys molitrix (Valenciennes in Cuvier and Valenciennes, 1844) -- valid -- carpa plateada, silver carp
  Hypophthalmichthys nobilis (Richardson, 1845) -- valid -- bighead carp, carpa cabezona
  Hypoplectrus aberrans Poey, 1868 -- valid -- vaca de vientre amarillo, yellowbelly hamlet
  Hypoplectrus gemma Goode and Bean, 1882 -- valid -- blue hamlet
  Hypoplectrus guttavarius (Poey, 1852) -- valid -- golden hamlet, shy hamlet, vaca dorada
  Hypoplectrus indigo (Poey, 1851) -- valid -- indigo hamlet, vaca añil
  Hypoplectrus nigricans (Poey, 1852) -- valid -- black hamlet, mero carbonero, vaca negra
  Hypoplectrus puella (Cuvier in Cuvier and Valenciennes, 1828) -- valid -- barred hamlet, mero barril, vaca barreada
  Hypoplectrus unicolor (Walbaum, 1792) -- valid -- butter hamlet, mero mantequilla, vaca blanca
  Hyporhamphus gilli Meek and Hildebrand, 1923 -- valid -- choelo halfbeak, pajarito cholo
  Hyporhamphus meeki Banford and Collette, 1993 -- valid -- agujeta flaca, American halfbeak, false silverstripe halfbeak, Meek's halfbeak
  Hyporhamphus mexicanus Alvarez, 1959 -- valid -- Mexican halfbeak, pajarito mexicano
  Hyporhamphus naos Banford and Collette, 2001 -- valid -- Pacific silverstripe halfbeak, pajarito blanco del Pacífico
  Hyporhamphus rosae (Jordan and Gilbert, 1880) -- valid -- California halfbeak, pajarito californiano
  Hyporhamphus snyderi Meek and Hildebrand, 1923 -- valid -- pajarito choca, skipper halfbeak
  Hyporhamphus unifasciatus (Ranzani, 1841) -- valid -- Atlantic silverstripe halfbeak, escribano, halfbeak, pajarito blanco del Atlántico, silverstripe halfbeak
  Hypostomus plecostomus (Linnaeus, 1758) -- valid -- suckermouth catfish
  Hypsagonus mozinoi (Wilimovsky and Wilson, 1979) -- invalid -- kelp poacher
  Hypsagonus quadricornis (Cuvier in Cuvier and Valenciennes, 1829) -- valid -- fourhorn poacher
  Hypsoblennius brevipinnis (Günther, 1861) -- valid -- barnaclebill blenny, borracho vacilón
  Hypsoblennius gentilis (Girard, 1854) -- valid -- bay blenny, borracho de bahía
  Hypsoblennius gilberti (Jordan, 1882) -- valid -- borracho de poza, rockpool blenny
  Hypsoblennius hentz (Lesueur, 1825) -- valid -- feather blenny
  Hypsoblennius invemar Smith-Vaniz and Acero P. in Smith-Vaniz, 1980 -- valid -- tessellated blenny
  Hypsoblennius ionthas (Jordan and Gilbert, 1882) -- valid -- freckled blenny
  Hypsoblennius jenkinsi (Jordan and Evermann in Jordan, 1896) -- valid -- borracho mejillonero, mussel blenny
  Hypsoblennius proteus (Krejsa, 1960) -- valid -- borracho de Socorro, Socorro blenny
  Hypsurus caryi (Agassiz, 1853) -- valid -- mojarra arcoiris, rainbow seaperch
  Hypsypops rubicundus (Girard, 1854) -- valid -- garibaldi, jaqueta garibaldi
  Hysterocarpus traskii Gibbons, 1854 -- valid -- tule perch
  Icelinus borealis Gilbert, 1896 -- valid -- northern sculpin
  Icelinus burchami Evermann and Goldsborough, 1907 -- valid -- dusky sculpin
  Icelinus cavifrons Gilbert, 1890 -- valid -- charrasco cabeza bacha, pit-head sculpin
  Icelinus filamentosus Gilbert, 1890 -- valid -- threadfin sculpin
  Icelinus fimbriatus Gilbert, 1890 -- valid -- fringed sculpin
  Icelinus oculatus Gilbert, 1890 -- valid -- frogmouth sculpin
  Icelinus quadriseriatus (Lockington, 1880) -- valid -- charrasco barbiamarilla, yellowchin sculpin
  Icelinus tenuis Gilbert, 1890 -- valid -- charrasco aletimanchada, spotfin sculpin
  Icelus bicornis (Reinhardt, 1840) -- valid -- icèle à deux cornes, twohorn sculpin
  Icelus canaliculatus Gilbert, 1896 -- valid -- blacknose sculpin
  Icelus euryops Bean, 1890 -- valid -- wide-eye sculpin
  Icelus spatula Gilbert and Burke, 1912 -- valid -- icèle spatulée, spatulate sculpin
  Icelus spiniger Gilbert, 1896 -- valid -- thorny sculpin
  Icelus uncinalis Gilbert and Burke, 1912 -- valid -- uncinate sculpin
  Ichthyapus ophioneus (Evermann and Marsh, 1900) -- valid -- finless snake eel, safío amarillo, surf eel, tieso alacrán
  Ichthyapus selachops (Jordan and Gilbert, 1882) -- valid -- smiling sand eel, tieso sonriente
  Ichthyomyzon bdellium (Jordan, 1885) -- valid -- lamproie de l'Ohio, Ohio lamprey
  Ichthyomyzon castaneus Girard, 1858 -- valid -- chestnut lamprey, lamproie brune
  Ichthyomyzon fossor Reighard and Cummins, 1916 -- valid -- lamproie de ruisseau septentrionale, lamproie du nord, northern brook lamprey
  Ichthyomyzon gagei Hubbs and Trautman, 1937 -- valid -- lamproie de ruisseau méridionale, southern brook lamprey
  Ichthyomyzon greeleyi Hubbs and Trautman, 1937 -- valid -- Allegheny brook lamprey, lamproie de ruisseau d'Allegheny, mountain brook lamprey
  Ichthyomyzon unicuspis Hubbs and Trautman, 1937 -- valid -- lamproie argentée, silver lamprey
  Icichthys lockingtoni Jordan and Gilbert, 1880 -- valid -- brown rudderfish, cojinoba medusa, medusafish
  Icosteidae -- valid -- icostéidés, peces harapo, ragfishes
  Icosteus aenigmaticus Lockington, 1880 -- valid -- ragfish
  Ictaluridae Gill, 1861 -- valid -- bagres de agua dulce, barbottes, barbottes et barbues, barbues, bullhead catfishes, North American catfishes, North American freshwater catfishes
  Ictalurus australis (Meek, 1904) -- valid -- bagre del Pánuco, Panuco catfish
  Ictalurus balsanus (Jordan and Snyder, 1899) -- valid -- bagre del Balsas, Balsas catfish
  Ictalurus dugesii (Bean, 1880) -- valid -- bagre del Lerma, Lerma catfish
  Ictalurus furcatus (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- bagre azul, blue catfish
  Ictalurus lupus (Girard, 1858) -- valid -- bagre lobo, headwater catfish
  Ictalurus mexicanus (Meek, 1904) -- valid -- bagre del Verde, Rio Verde catfish
  Ictalurus ochoterenai (de Buen, 1946) -- valid -- bagre de Chapala, Chapala catfish
  Ictalurus pricei (Rutter, 1896) -- valid -- bagre yaqui, Yaqui catfish
  Ictalurus punctatus (Rafinesque, 1818) -- valid -- bagre de canal, barbue de rivière, channel catfish, graceful catfish
  Ictiobus bubalus (Rafinesque, 1818) -- valid -- matalote boquín, smallmouth buffalo
  Ictiobus cyprinellus (Valenciennes in Cuvier and Valenciennes, 1844) -- valid -- bigmouth buffalo
  Ictiobus labiosus (Meek, 1904) -- valid -- fleshylip buffalo, matalote bocón
  Ictiobus meridionalis (Günther, 1868) -- valid -- matalote meridional, southern buffalo, Usumacinta buffalo
  Ictiobus niger (Rafinesque, 1819) -- valid -- black buffalo, matalote negro
  Ilisha fuerthii (Steindachner, 1875) -- valid -- hatchet herring, Pacific ilisha, sardina hacha
  Ilyodon cortesae Paulo-Maya and Trujillo-Jiménez, 2000 -- valid -- freckled splitfin, mexcalpique pecoso
  Ilyodon furcidens (Jordan and Gilbert, 1882) -- valid -- goldbreast splitfin, mexcalpique de Armería
  Ilyodon lennoni Meyer and Foerster, 1983 -- valid -- Chacambero splitfin, mexcalpique de Chacambero
  Ilyodon whitei (Meek, 1904) -- valid -- Balsas splitfin, mexcalpique cola partida
  Ilyodon xantusi (Hubbs and Turner, 1939) -- valid -- Limones splitfin, mexcalpique de Los Limones
  Ilypnus gilberti (Eigenmann and Eigenmann, 1889) -- valid -- cheekspot goby, gobio mejilla manchada
  Ilypnus luculentus (Ginsburg, 1938) -- valid -- bright goby, gobio brillante
  Inermia vittata Poey, 1860 -- valid -- boga, boga
  Inermiidae -- valid -- bogas, bonnetmouths, inermiidés
  Iniistius pavo (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- cuchillo pavo real, peacock razorfish, peacock wrasse
  Iotichthys phlegethontis (Cope, 1874) -- valid -- least chub
  Isistius brasiliensis (Quoy and Gaimard, 1824) -- valid -- cookiecutter shark, tiburón cigarro
  Isopisthus remifer Jordan and Gilbert, 1882 -- valid -- bigeye corvina, corvina ojona
  Isopsetta isolepis (Lockington, 1880) -- valid -- butter sole, Butter Sole, plie à écailles régulières
  Istiophoridae -- valid -- billfishes, marlins, picudos, sailfishes, spearfishes, voiliers
  Istiophorus platypterus (Shaw in Shaw and Nodder, 1792) -- valid -- aguja de abanico, Atlantic sailfish, bayonet fish, Indo-Pacific sailfish, pez vela, sailfish
  Isurus oxyrinchus Rafinesque, 1810 -- valid -- dientuso azul, mako, shortfin mako
  Isurus paucus Guitart Manday, 1966 -- valid -- dientuso prieto, longfin mako, mako aletón, marrajo carite, petit taupe
  Jenkinsia lamprotaenia (Gosse, 1851) -- valid -- dwarf herring, dwarf round herring, manjúa, sardinita flaca
  Jenkinsia majua Whitehead, 1963 -- valid -- little-eye herring, little-eye round herring, sardineta, sardinita ojito
  Jenkinsia stolifera (Jordan and Gilbert, 1884) -- valid -- Florida round herring, sardinita de cayo, shortband herring
  Johnrandallia nigrirostris (Gill, 1862) -- valid -- barberfish, mariposa barbero
  Jordanella floridae Goode and Bean in Goode, 1879 -- valid -- American flagfish, flagfish
  Jordanella pulchra (Hubbs, 1936) -- invalid -- cachorrito de Progreso, Progreso flagfish
  Jordania zonope Starks, 1895 -- valid -- longfin sculpin
  Joturus pichardi Poey, 1860 -- valid -- bobo, bobo, bobo mullet, hog mullet, joturo, joturo
  Kasatkia seigeli Posner and Lavenberg, 1999 -- valid -- sixspot prickleback
  Kathetostoma albigutta Bean, 1892 -- valid -- lancer stargazer, miracielo sargacero
  Kathetostoma averruncus Jordan and Bollman, 1890 -- valid -- miracielo buldog, smooth stargazer
  Katsuwonus pelamis (Linnaeus, 1758) -- valid -- Arctic bonito, barrilete listado, bonite à ventre rayé, bonito listado, listado, mushmouth, oceanic bonito, skipjack, skipjack tuna, striped tuna, victor fish
  Kaupichthys hyoproroides (Strömman, 1896) -- valid -- anguililla de arrecife, false moray, morena falsa de arrecife, reef moray
  Kaupichthys nuchalis Böhlke, 1967 -- valid -- anguililla de collar, collared eel, morena falsa de collar
  Kuhlia mugil (Forster in Bloch and Schneider, 1801) -- valid -- barred flagtail, dara bandera
  Kuhliidae -- valid -- aholeholes, crocros, daras, flagtails, mountain basses
  Kyphosidae -- valid -- chopas, kyphoses, pilotfishes, rudderfishes, sea chubs
  Kyphosus analogus (Gill, 1862) -- valid -- blue-bronze chub, chopa rayada, salema
  Kyphosus elegans (Peters, 1869) -- valid -- chopa, chopa, chopa de Cortés, Cortez sea chub
  Kyphosus incisor (Cuvier in Cuvier and Valenciennes, 1831) -- valid -- chopa amarilla, yellow chub
  Kyphosus lutescens (Jordan and Gilbert, 1882) -- valid -- chopa de Revillagigedo, Revillagigedo sea chub
  Kyphosus sectatrix (Linnaeus, 1758) -- invalid -- Bermuda chub, chopa blanca
  Labidesthes sicculus (Cope, 1865) -- valid -- brook silverside, crayon d'argent
  Labridae Cuvier, 1816 -- valid -- doncellas y señoritas, labres, labridés, rainbowfishes, wrasses
  Labrisomidae -- valid -- labrisomid blennies, labrisomidés, trambollos
  Labrisomus bucciferus Poey, 1868 -- valid -- puffcheek blenny, sapito fumador, trambollo fumador
  Labrisomus gobio (Valenciennes in Cuvier and Valenciennes, 1836) -- valid -- palehead blenny, sapito ojudo, trambollo caripálida
  Labrisomus guppyi (Norman, 1922) -- valid -- mimic blenny, sapito prieto, trambollo mímico
  Labrisomus haitiensis Beebe and Tee-van, 1928 -- valid -- longfin blenny, sapito de roca, trambollo príncipe
  Labrisomus kalisherae (Jordan, 1904) -- valid -- downy blenny, trambollo velloso
  Labrisomus multiporosus Hubbs, 1953 -- valid -- porehead blenny, trambollo cabeza porosa
  Labrisomus nigricinctus Howell Rivero, 1936 -- valid -- sapito lunado, spotcheek blenny, trambollo lunado
  Labrisomus nuchipinnis (Quoy and Gaimard, 1824) -- valid -- hairy blenny, sapito cabezón, trambollo peludo
  Labrisomus socorroensis Hubbs, 1953 -- valid -- misspelled blenny, trambollo de Socorro
  Labrisomus striatus Hubbs, 1953 -- valid -- green blenny, trambollo listado
  Labrisomus wigginsi Hubbs, 1953 -- valid -- Baja blenny, trambollo bajacaliforniano
  Labrisomus xanti Gill, 1860 -- valid -- chalapo, largemouth blenny, rock blenny, rock blenny
  Lachnolaimus maximus (Walbaum, 1792) -- valid -- boquinete, hogfish, pez perro
  Lactophrys bicaudalis (Linnaeus, 1758) -- valid -- chapín de lunares negros, chapín pintado, Spotted Trunkfish, spotted trunkfish
  Lactophrys trigonus (Linnaeus, 1758) -- valid -- chapín búfalo, chapín de lunares, trunkfish, Trunkfish
  Lactophrys triqueter (Linnaeus, 1758) -- valid -- chapín baqueta, chapín común, smooth trunkfish, Smooth Trunkfish
  Lactoria diaphana (Bloch & Schneider, 1801) -- valid -- cofre espinoso, spiny boxfish, Spiny Boxfish
  Laemonema barbatulum Goode and Bean, 1883 -- valid -- shortbeard codling, smallscale mora
  Lagocephalus laevigatus (Linnaeus, 1766) -- valid -- botete grande, Smooth Puffer, smooth puffer, tamboril gigante
  Lagocephalus lagocephalus (Linnaeus, 1758) -- valid -- botete oceánico, Oceanic Puffer, oceanic puffer, orbe étoilé, tamboril oceanico
  Lagodon rhomboides (Linnaeus, 1766) -- valid -- chopa espina, pinfish, xlavitia
  Lamna ditropis Hubbs and Follett, 1947 -- valid -- salmon shark, tiburón salmón
  Lamna nasus (Bonnaterre, 1788) -- valid -- maraîche, porbeagle
  Lamnidae Müller and Henle, 1838 -- valid -- jaquetones, mackerel sharks, porbeagles, requins-taupes, white sharks
  Lampadena speculigera Goode and Bean, 1896 -- valid -- mirror lanternfish
  Lampanyctus crocodilus (Risso, 1810) -- valid -- crocodile lanternfish, grande lampe-bouée, jewel lanternfish
  Lampetra aepyptera (Abbott, 1860) -- valid -- least brook lamprey, petite lamproie de ruisseau
  Lampetra appendix (DeKay, 1842) -- invalid -- American brook lamprey, lamproie de l'est
  Lampetra ayresii (Günther, 1870) -- valid -- lamproie de rivière de l'ouest, river lamprey, western river lamprey
  Lampetra camtschatica (Tilesius, 1811) -- invalid -- Arctic lamprey
  Lampetra geminis (Álvarez, 1964) -- invalid -- Jacona lamprey, lamprea de Jacona
  Lampetra hubbsi (Vladykov and Kott, 1976) -- valid -- Kern brook lamprey
  Lampetra lethophaga Hubbs, 1971 -- invalid -- Pit-Klamath brook lamprey
  Lampetra macrostoma Beamish, 1982 -- invalid -- Vancouver lamprey
  Lampetra minima Bond and Kan, 1973 -- invalid -- Miller Lake lamprey
  Lampetra richardsoni Vladykov and Follett, 1965 -- valid -- lamproie de ruisseau occidentale, western brook lamprey
  Lampetra similis (Vladykov and Kott, 1979) -- invalid -- Klamath lamprey
  Lampetra spadicea Bean, 1887 -- invalid -- Chapala lamprey, lamprea de Chapala
  Lampetra tridentata (Richardson, 1836) -- invalid -- lamprea del Pacífico, Pacific lamprey
  Lamprididae -- valid -- opahs, opahs, opahs
  Lampris guttatus (Brünnich, 1788) -- valid -- opah, opah, pez mariposa
  Larimus acclivis Jordan and Bristol in Jordan and Evermann, 1898 -- valid -- boquinete, steeplined drum
  Larimus argenteus (Gill, 1863) -- valid -- boquinete chato, silver drum
  Larimus effulgens Gilbert in Jordan and Evermann, 1898 -- valid -- boquinete boca de novia, shining drum
  Larimus fasciatus Holbrook, 1855 -- valid -- banded drum, boquinete listado
  Larimus pacificus Jordan and Bollman, 1890 -- valid -- boquinete del Pacífico, Pacific drum
  Lavinia exilicauda Baird and Girard in Girard, 1854 -- valid -- hitch
  Leiocottus hirundo Girard, 1856 -- valid -- charrasco lavanda, lavender sculpin
  Leiostomus xanthurus Lacepède, 1802 -- valid -- croca, spot
  Lepidocybium flavobrunneum (Smith, 1843) -- valid -- escolar, escolar negro, petróleo
  Lepidogobius lepidus (Girard, 1858) -- valid -- bay goby, gobio frío
  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 vittata Cope, 1874 -- valid -- Little Colorado spinedace
  Lepidopsetta bilineata (Ayres, 1855) -- valid -- fausse limande du Pacifique, Rock Sole, rock sole
  Lepidopsetta polyxystra Orr & Matarese, 2000 -- valid -- limande du nord, Northern Rock Sole, northern rock sole
  Lepidopus altifrons Parin and Collette, 1993 -- valid -- crested scabbardfish
  Lepidopus fitchi Rosenblatt and Wilson, 1987 -- valid -- black scabbardfish, Fitch's scabbardfish, Pacific scabbardfish, pez cinto
  Lepisosteidae -- valid -- gar pikes, garfishes, gars, lépisostés, pejelagartos
  Lepisosteiformes -- valid
  Lepisosteus oculatus Winchell, 1864 -- valid -- catán pinto, lépisosté tacheté, shortnose gar, spotted gar
  Lepisosteus osseus (Linnaeus, 1758) -- valid -- catán aguja, lépisosté osseux, longnose gar
  Lepisosteus platostomus Rafinesque, 1820 -- valid -- shortnose gar
  Lepisosteus platyrhincus DeKay, 1842 -- valid -- Florida gar
  Lepomis auritus (Linnaeus, 1758) -- valid -- crapet rouge, mojarra pecho rojo, Redbreast Sunfish
  Lepomis cyanellus Rafinesque, 1819 -- valid -- crapet vert, Green Sunfish, pez sol
  Lepomis gibbosus (Linnaeus, 1758) -- valid -- crapet-soleil, kiver, Pumpkinseed
  Lepomis gulosus (Cuvier in Cuvier and Valenciennes, 1829) -- valid -- crapet sac-à-lait, mojarra golosa, Warmouth
  Lepomis humilis (Girard, 1858) -- valid -- Orangespotted Sunfish
  Lepomis macrochirus Rafinesque, 1819 -- valid -- Bluegill, crapet arlequin, mojarra oreja azul
  Lepomis marginatus (Holbrook, 1855) -- valid -- Dollar Sunfish
  Lepomis megalotis (Rafinesque, 1820) -- valid -- crapet à longues oreilles, Longear Sunfish, mojarra gigante, mojarra orejona
  Lepomis microlophus (Günther, 1859) -- valid -- mojarra oreja roja, Redear Sunfish
  Lepomis miniatus (Jordan, 1877) -- valid -- Redspotted Sunfish, scarlet sunfish
  Lepomis punctatus (Valenciennes in Cuvier and Valenciennes, 1831) -- valid -- mojarra manchada, Spotted Sunfish
  Lepomis symmetricus Forbes in Jordan and Gilbert, 1883 -- valid -- Bantam Sunfish
  Lepophidium brevibarbe (Cuvier, 1829) -- valid -- blackedge cusk-eel, clarín, congriperla clarín
  Lepophidium jeannae Fowler, 1941 -- valid -- congriperla jaspeada, mottled cusk-eel
  Lepophidium microlepis (Gilbert, 1890) -- valid -- congriperla plateada, finescale cusk-eel
  Lepophidium negropinna Hildebrand and Barton, 1949 -- valid -- congriperla pinta, specklefin cusk-eel
  Lepophidium pardale (Gilbert, 1890) -- valid -- congriperla leopardo, leopard cusk-eel
  Lepophidium pheromystax Robins, 1960 -- valid -- congriperla bigotona, upsilon cusk-eel
  Lepophidium profundorum (Gill, 1863) -- valid -- clarín, congriperla amarilla, fawn cusk-eel
  Lepophidium prorates (Jordan and Bollman, 1890) -- valid -- congriperla cornuda, prowspine cusk-eel
  Lepophidium staurophor Robins, 1959 -- valid -- barred cusk-eel, congriperla rayada
  Lepophidium stigmatistium (Gilbert, 1890) -- valid -- congriperla mexicana, Mexican cusk-eel
  Leptagonus decagonus (Bloch and Schneider, 1801) -- valid -- agone atlantique, Atlantic poacher
  Leptagonus frenatus (Gilbert, 1896) -- invalid -- sawback poacher
  Leptagonus leptorhynchus (Gilbert, 1896) -- invalid -- longnose poacher
  Leptoclinus maculatus (Fries, 1838) -- valid -- daubed shanny, lompénie tachetée
  Leptocottus armatus Girard, 1854 -- valid -- charrasco de astas, Pacific staghorn sculpin
  Leptolucania ommata (Jordan, 1884) -- valid -- pygmy killifish
  Letharchus rosenblatti McCosker, 1974 -- valid -- black sailfin eel, tieso vela negro
  Letharchus velifer Goode and Bean, 1882 -- valid -- sailfin eel
  Lethogoleos andersoni McCosker and Böhlke, 1982 -- valid -- forgetful snake eel
  Lethops connectens Hubbs, 1926 -- valid -- gobio sargacero, halfblind goby
  Lethotremus muticus Gilbert, 1896 -- valid -- docked snailfish
  Leuciscus idus (Linnaeus, 1758) -- valid -- ide, orfe
  Leucoraja erinacea (Mitchill, 1825) -- valid -- common skate, little skate, raie-hérisson, summer skate
  Leucoraja garmani (Whitley, 1939) -- valid -- rosette skate
  Leucoraja lentiginosa (Bigelow and Schroeder, 1951) -- valid -- freckled skate, raya pecosa, speckled skate
  Leucoraja ocellata (Mitchill, 1815) -- valid -- big skate, eyed skate, raie tachetée, winter skate
  Leuresthes sardina (Jenkins and Evermann, 1889) -- valid -- Gulf grunion, pejerrey sardina
  Leuresthes tenuis (Ayres, 1860) -- valid -- California grunion, pejerrey californiano
  Leuroglossus schmidti Rass, 1955 -- valid -- northern smoothtongue
  Leuroglossus stilbius Gilbert, 1890 -- valid -- California smoothtongue, lengualisa californiana
  Leuropharus lasiops Rosenblatt and McCosker, 1970 -- valid -- acned snake eel, tieso pustuloso
  Lile gracilis Castro-Aguirre and Vivero, 1990 -- valid -- graceful herring, sardinita agua dulce
  Lile nigrofasciata Castro-Aguirre, Ruiz-Campos and Balart, 2002 -- valid -- blackstripe herring, sardinita raya negra
  Lile stolifera (Jordan and Gilbert, 1882) -- valid -- Pacific piquitinga, sardinita rayada, striped herring
  Limanda aspera (Pallas, 1814) -- valid -- limande à nageoires jaunes, Yellowfin Sole, yellowfin sole
  Limanda ferruginea (Storer, 1839) -- valid -- limande à queue jaune, rusty flounder, yellowtail flounder, Yellowtail Flounder
  Limanda proboscidea Gilbert, 1896 -- valid -- limande carline, Longhead Dab, longhead dab
  Limanda sakhalinensis Hubbs, 1915 -- valid -- Sakhalin sole, Sakhalin Sole
  Liopropoma carmabi (Randall, 1963) -- valid -- candy basslet
  Liopropoma eukrines (Starck and Courtenay, 1962) -- valid -- wrasse bass, wrasse basslet
  Liopropoma fasciatum Bussing, 1980 -- valid -- cabrilla arcoiris, rainbow basslet
  Liopropoma longilepis Garman, 1899 -- valid -- cabrilla aleta escamosa, scalyfin basslet
  Liopropoma mowbrayi Woods and Kanazawa, 1951 -- valid -- cabrilla de cueva, cave bass, cave basslet, guardia rojo
  Liopropoma rubre Poey, 1861 -- valid -- cabrilla menta, guardia suizo, peppermint bass, peppermint basslet
  Liparidae -- valid -- limaces de mer, peces babosos, snailfishes
  Liparis atlanticus (Jordan and Evermann, 1898) -- valid -- Atlantic seasnail, limace atlantique, seasnail
  Liparis beringianus (Gilbert and Burke, 1912) -- invalid -- Bering snailfish
  Liparis bristolensis (Burke, 1912) -- valid -- Bristol snailfish
  Liparis callyodon (Pallas, 1814) -- valid -- spotted snailfish
  Liparis catharus Vogt, 1973 -- valid -- purity snailfish
  Liparis coheni Able, 1976 -- valid -- Gulf snailfish, limace de Cohen
  Liparis cyclopus Günther, 1861 -- valid -- ribbon snailfish
  Liparis dennyi Jordan and Starks, 1895 -- valid -- marbled snailfish
  Liparis fabricii Krøyer, 1847 -- valid -- gelatinous seasnail, limace gélatineuse
  Liparis florae (Jordan and Starks, 1895) -- valid -- tidepool snailfish
  Liparis fucensis Gilbert, 1896 -- valid -- slipskin snailfish
  Liparis gibbus Bean, 1881 -- valid -- limace marbrée, polka-dot snailfish, variegated snailfish, varigated snailfish
  Liparis greeni (Jordan and Starks, 1895) -- invalid -- lobefin snailfish
  Liparis inquilinus Able, 1973 -- valid -- inquiline snailfish, limace des pétoncles
  Liparis marmoratus Schmidt, 1950 -- valid -- festive snailfish
  Liparis megacephalus (Burke, 1912) -- valid -- bighead snailfish
  Liparis micraspidophorus (Gilbert and Burke, 1912) -- valid -- thumbtack snailfish
  Liparis mucosus Ayres, 1855 -- valid -- baboso mucoso, slimy snailfish
  Liparis ochotensis Schmidt, 1904 -- valid -- Okhotsk snailfish
  Liparis pulchellus Ayres, 1855 -- valid -- showy snailfish
  Liparis rutteri (Gilbert and Snyder in Jordan and Evermann, 1898) -- valid -- ringtail snailfish
  Liparis tunicatus Reinhardt, 1836 -- valid -- Greenland seasnail, kelp snailfish, limace des laminaires
  Lipariscus nanus Gilbert, 1915 -- valid -- pygmy snailfish
  Lipogramma anabantoides Böhlke, 1960 -- valid -- dusky basslet, spotfin basslet
  Lipogramma evides Robins and Colin, 1979 -- valid -- banded basslet, cabrilleta cinteada
  Lipogramma trilineatum Randall, 1963 -- valid -- cabrilleta tres rayas, threeline basslet
  Lobotes pacificus Gilbert in Jordan and Evermann, 1898 -- valid -- dormilona del Pacífico, Pacific tripletail, west coast tripletail, West Coast tripletail
  Lobotes surinamensis (Bloch, 1790) -- valid -- Atlantic tripletail, biajaca de mar, dormilona del Atlántico, tripletail
  Lobotidae -- valid -- croupias, dormilonas, flashers, tripletails
  Lonchopisthus micrognathus (Poey, 1860) -- valid -- bocón rayado, guardian lanceolado, swordtail jawfish
  Lonchopisthus sinuscalifornicus Castro-Aguirre and Villavicencio-Garayzar, 1988 -- valid -- bocón cola larga, longtail jawfish
  Lophiidae -- valid -- anglerfishes, baudroies, goosefishes, monkfishes, rapes pescadores
  Lophiiformes -- valid -- anglerfishes, baudroies
  Lophiodes caulinaris (Garman, 1899) -- valid -- rape rabo manchado, spottedtail goosefish
  Lophiodes reticulatus Caruso and Suttkus, 1979 -- valid -- rape hocicón, reticulate goosefish
  Lophiodes spilurus (Garman, 1899) -- valid -- rape de hebra, threadfin goosefish
  Lophius americanus Valenciennes in Cuvier and Valenciennes, 1837 -- valid -- baudroie d'Amérique, goosefish, monkfish
  Lophius gastrophysus Miranda Ribeiro, 1915 -- valid -- blackfin goosefish, rape pescador
  Lophogobius cyprinoides (Pallas, 1770) -- valid -- crested goby, gobio encrestado, gobio gallo
  Lopholatilus chamaeleonticeps Goode and Bean, 1879 -- valid -- blue tilefish, conejo amarillo, tilefish
  Lophotidae -- valid -- crestfishes, peces flecos, poissons crêtés
  Lophotus capellei Temminck and Schlegel, 1845 -- valid -- crestfish, North Pacific crestfish
  Lophotus lacepede Giorna, 1809 -- valid -- crestfish, fleco de gallo
  Loricariidae Rafinesque, 1815 -- valid -- armored catfishes, loricariidés, plecóstomas, suckermouth armored catfishes, suckermouth catfishes
  Lota lota (Linnaeus, 1758) -- valid -- burbot, eelpout, lotte
  Lucania goodei Jordan, 1880 -- valid -- blue-fintop minnow, bluefin killifish
  Lucania interioris Hubbs and Miller, 1965 -- valid -- Cuatro Cienegas killifish, Cuatrocienegas killifish, sardinilla de Cuatro Ciénegas
  Lucania parva (Baird and Girard in Girard, 1855) -- valid -- rainwater killifish, sardinilla de lluvia
  Lumpenella longirostris (Evermann and Goldsborough, 1907) -- valid -- longsnout prickleback
  Lumpenus fabricii Reinhardt, 1836 -- valid -- lompénie élancée, slender eelblenny
  Lumpenus lampretaeformis (Walbaum, 1792) -- valid -- lompénie-serpent, serpent blenny, snakeblenny
  Lumpenus sagitta Wilimovsky, 1956 -- valid -- snake prickleback
  Lupinoblennius nicholsi (Tavolga, 1954) -- valid -- borracho aletón, highfin blenny
  Lupinoblennius vinctus (Poey, 1867) -- valid -- blenio de mangle, mangrove blenny
  Lutjanidae -- valid -- fusiliers, pargos y huachinangos, perches de mer, sea perches, snappers, vivaneaux
  Lutjanus analis (Cuvier in Cuvier and Valenciennes, 1828) -- valid -- mutton snapper, pargo criollo
  Lutjanus apodus (Walbaum, 1792) -- valid -- cají, pargo canchix, schoolmaster, schoolmaster snapper
  Lutjanus aratus (Günther, 1864) -- valid -- mullet snapper, pargo raicero
  Lutjanus argentiventris (Peters, 1869) -- valid -- amarillo snapper, pargo amarillo, yellow snapper, yellowtail snapper
  Lutjanus buccanella (Cuvier in Cuvier and Valenciennes, 1828) -- valid -- blackfin snapper, pargo sesí
  Lutjanus campechanus (Poey, 1860) -- valid -- huachinango del Golfo, northern red snapper, pargo colorado, red snapper
  Lutjanus colorado Jordan and Gilbert, 1882 -- valid -- colorado snapper, pargo colorado
  Lutjanus cyanopterus (Cuvier in Cuvier and Valenciennes, 1828) -- valid -- cubera, cubera snapper, pargo cubera
  Lutjanus griseus (Linnaeus, 1758) -- valid -- caballerete, gray snapper, grey snapper, pargo mulato
  Lutjanus guttatus (Steindachner, 1869) -- valid -- mutton snapper, pargo lunarejo, spotted rose snapper
  Lutjanus inermis (Peters, 1869) -- valid -- golden snapper, Pacific rabirubia, pargo rabirrubia
  Lutjanus jocu (Bloch and Schneider, 1801) -- valid -- dog snapper, jocú, pargo caballera
  Lutjanus jordani (Gilbert in Jordan and Evermann, 1898) -- valid -- Jordan's snapper, pargo colmillón, whipper snapper
  Lutjanus mahogoni (Cuvier in Cuvier and Valenciennes, 1828) -- valid -- mahogany snapper, ojanco, pargo ojón
  Lutjanus novemfasciatus Gill, 1862 -- valid -- black snapper, dog snapper, Pacific dog snapper, pargo prieto
  Lutjanus peru (Nichols and Murphy, 1922) -- valid -- huachinango del Pacífico, Pacific red snapper
  Lutjanus purpureus (Poey, 1866) -- valid -- Caribbean red snapper, pargo rojo, southern red snapper
  Lutjanus synagris (Linnaeus, 1758) -- valid -- biajaiba, lane snapper, pargo biajaiba
  Lutjanus viridis (Valenciennes, 1846) -- valid -- blue and gold snapper, blue-and-gold snapper, pargo azul-dorado
  Lutjanus vivanus (Cuvier in Cuvier and Valenciennes, 1828) -- valid -- huachinango ojo amarillo, pargo del alto, silk snapper
  Luvaridae -- valid -- emperadores, emperadores, louvars, louvars, louvereaux, louvereaux, Luvarsus fishes
  Luvarus imperialis Rafinesque, 1810 -- valid -- emperador, Louvar, louvar
  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 -- 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
  Lycenchelys paxillus (Goode and Bean, 1879) -- valid -- common wolf eel, lycode commun
  Lycenchelys verrillii (Goode and Bean, 1877) -- valid -- wolf eelpout
  Lycodapus fierasfer Gilbert, 1890 -- valid -- blackmouth eelpout
  Lycodapus mandibularis Gilbert, 1915 -- valid -- pallid eelpout
  Lycodapus parviceps Gilbert, 1896 -- valid -- smallhead eelpout
  Lycodapus psarostomatus Peden and Anderson, 1981 -- valid -- specklemouth eelpout
  Lycodes brevipes Bean, 1890 -- valid -- shortfin eelpout
  Lycodes concolor Gill and Townsend, 1897 -- valid -- ebony eelpout
  Lycodes cortezianus (Gilbert, 1890) -- valid -- bigfin eelpout
  Lycodes diapterus Gilbert, 1892 -- valid -- black eelpout
  Lycodes esmarkii Collett, 1875 -- valid -- Esmark's eelpout, greater eelpout, lycode d'Esmark
  Lycodes fasciatus (Schmidt, 1904) -- valid -- banded eelpout
  Lycodes jugoricus Knipowitsch, 1906 -- valid -- shulupaoluk
  Lycodes lavalaei Vladykov and Tremblay, 1936 -- valid -- lycode du Labrador, Newfoundland eelpout
  Lycodes mucosus Richardson, 1855 -- valid -- saddled eelpout
  Lycodes pacificus Collett, 1879 -- valid -- blackbelly eelpout, viruela panza negra
  Lycodes palearis Gilbert, 1896 -- valid -- wattled eelpout
  Lycodes pallidus Collett, 1879 -- valid -- lycode pâle, pale eelpout
  Lycodes polaris (Sabine, 1824) -- valid -- Canadian eelpout, lycode polaire
  Lycodes raridens Taranetz and Andriashev in Andriashev, 1937 -- valid -- marbled eelpout, sparse-toothed lycod
  Lycodes reticulatus Reinhardt, 1835 -- valid -- Arctic eelpout, lycode arctique
  Lycodes rossi Malmgren, 1865 -- valid -- threespot eelpout
  Lycodes turneri Bean, 1879 -- valid -- polar eelpout
  Lycodes vahlii Reinhardt, 1831 -- valid -- checker eelpout, lycode à carreaux, Vahl's eelpout
  Lyconema barbatum Gilbert, 1896 -- valid -- bearded eelpout, viruela barbona
  Lyopsetta exilis (Jordan & Gilbert, 1880) -- valid -- platija flaca, plie mince, Slender Sole, slender sole
  Lythrurus alegnotus (Snelson, 1972) -- valid -- Warrior shiner
  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 -- scarlet shiner, scarletfin 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 Mountain shiner, Ouachita shiner
  Lythrurus umbratilis (Girard, 1856) -- valid -- redfin shiner
  Lythrypnus dalli (Gilbert, 1890) -- valid -- bluebanded goby, gobio bonito
  Lythrypnus elasson Böhlke and Robins, 1960 -- valid -- dwarf goby, gobio enano
  Lythrypnus insularis Bussing, 1990 -- valid -- distant goby, gobio isleño
  Lythrypnus nesiotes Böhlke and Robins, 1960 -- valid -- gobio insular, gobio isla, island goby
  Lythrypnus phorellus Böhlke and Robins, 1960 -- valid -- convict goby, gobio reo
  Lythrypnus pulchellus Ginsburg, 1938 -- valid -- gobio coquetón, gorgeous goby
  Lythrypnus rhizophora (Heller and Snodgrass, 1903) -- valid -- gobio ligero, spottedcheek goby
  Lythrypnus spilus Böhlke and Robins, 1960 -- valid -- bluegold goby, gobio marcado
  Lythrypnus zebra (Gilbert, 1890) -- valid -- gobio cebra, zebra goby
  Macrhybopsis aestivalis (Girard, 1856) -- valid -- carpa pecosa, speckled chub
  Macrhybopsis australis (Hubbs and Ortenburger, 1929) -- valid -- prairie chub, Red River chub
  Macrhybopsis gelida (Girard, 1856) -- valid -- sicklefin chub, sturgeon chub
  Macrhybopsis hyostoma (Gilbert, 1884) -- valid -- central chub, shoal chub
  Macrhybopsis marconis (Jordan and Gilbert, 1886) -- valid -- burrhead chub, Guadaloupe chub
  Macrhybopsis meeki (Jordan and Evermann, 1896) -- valid -- sicklefin chub, sturgeon chub
  Macrhybopsis storeriana (Kirtland, 1845) -- valid -- silver chub
  Macrhybopsis tetranema (Gilbert, 1886) -- valid -- Arkansas chub, Arkansas River speckled chub, Canadian Speckled Chub, peppered chub
  Macropinna microstoma Chapman, 1939 -- valid -- barreleye
  Macroramphosidae -- valid -- bécasses de mer, snipefishes, trompeteros
  Macroramphosus gracilis (Lowe, 1839) -- valid -- slender snipefish, tirador alargado, trompetero flaco
  Macroramphosus scolopax (Linnaeus, 1758) -- valid -- longspine snipefish, trompetero copete
  Macrouridae Gilbert and Hubbs, 1916 -- valid -- granaderos, grenadiers, grenadiers, marcrouridés, rattails
  Macrourus berglax Lacepède, 1801 -- valid -- grenadier berglax, onion-eye grenadier, roughhead grenadier, smoothspined grenadier
  Magnisudis atlantica (Krøyer, 1868) -- valid -- barracudina pequeña, barracudina pico de pato, duckbill barracudina
  Makaira indica (Cuvier in Cuvier and Valenciennes, 1832) -- invalid -- black marlin, giant black marlin, marlin negro, Pacific black marlin, silver marlin
  Makaira mazara (Jordan and Snyder, 1901) -- invalid -- black spearfish, Indo-Pacific blue marlin, marlin azul del Indo-Pacífico, Pacific blue marlin
  Makaira nigricans Lacepède, 1802 -- valid -- Atlantic blue marlin, blue marlin, castero, Cuban black marlin, marlin azul
  Malacanthidae -- valid -- blanquillos, tilefishes, tiles
  Malacanthus plumieri (Bloch, 1786) -- valid -- matajuelo blanco, matejuelo blanco, sand tilefish
  Malacocephalus occidentalis Goode and Bean, 1885 -- valid -- American straptail grenadier, granadero carapacho, western softhead grenadier
  Malacocottus kincaidi Gilbert and Thompson, 1905 -- valid -- blackfin sculpin
  Malacocottus zonurus Bean, 1890 -- valid -- darkfin sculpin
  Malacoctenus aurolineatus Smith, 1957 -- valid -- goldline blenny, sapito lincado, trambollo lineado
  Malacoctenus boehlkei Springer, 1959 -- valid -- diamond blenny, diamond blenny, trambollo diamantino
  Malacoctenus ebisui Springer, 1959 -- valid -- fishgod blenny, trambollo dorado
  Malacoctenus erdmani Smith, 1957 -- valid -- imitator blenny, imitator blenny, sapito imitador, trambollo imitador
  Malacoctenus gigas Springer, 1959 -- valid -- Sonora blenny, trambollo de Sonora
  Malacoctenus gilli (Steindachner, 1867) -- valid -- dusky blenny, dusky blenny, sapito pardo, trambollo pardo
  Malacoctenus hubbsi Springer, 1959 -- valid -- redside blenny, trambollo rojo
  Malacoctenus macropus (Poey, 1868) -- valid -- rosy blenny, sapito rosado, trambollo rosado
  Malacoctenus margaritae (Fowler, 1944) -- valid -- margarita blenny, trambollo margarita
  Malacoctenus tetranemus (Cope, 1877) -- valid -- throatspotted blenny, trambollo pintado
  Malacoctenus triangulatus Springer, 1959 -- valid -- saddle blenny, saddled blenny, sapito de inontura, trambollo ensillado
  Malacoctenus versicolor (Poey, 1876) -- valid -- barfin blenny, barfin blenny, sapito multicolor, trambollo multicolor
  Malacoctenus zacae Springer, 1959 -- valid -- trambollo aletiamarilla, Zaca blenny
  Malacoctenus zonifer (Jordan and Gilbert, 1882) -- valid -- glossy blenny, trambollo brilloso
  Malacoraja senta (Garman, 1885) -- valid -- raie à queue de velours, smooth skate
  Mallotus villosus (Müller, 1776) -- valid -- capelan, capelin
  Manta birostris (Walbaum, 1792) -- valid -- Atlantic manta, giant manta, manta, manta gigante, Pacific manta
  Margariscus margarita (Cope, 1867) -- valid -- mulet perlé, pearl dace
  Margariscus nachtriebi (Cox, 1896) -- valid -- northern pearl dace
  Maurolicus weitzmani Parin and Kobyliansky, 1993 -- valid -- Atlantic pearlside, luciérnaga perlada, pearlside, pearlsides, Weitzman's pearlside
  Meda fulgida Girard, 1856 -- valid -- spikedace
  Medialuna californiensis (Steindachner, 1876) -- valid -- chopa medialuna, halfmoon
  Megachasma pelagios Taylor, Compagno and Struhsaker, 1983 -- valid -- megamouth shark, tiburón bocón
  Megachasmidae Taylor, Compagno and Struhsaker, 1983 -- valid -- megamouth sharks, requins à grande gueule, tiburones bocones
  Megalocottus platycephalus (Pallas, 1814) -- valid -- belligerent sculpin
  Megalopidae -- valid -- sábalos, tarpons, tarpons
  Megalops atlanticus Valenciennes in Cuvier and Valenciennes, 1847 -- valid -- sábalo, tarpon
  Megupsilon aporus Miller and Walters, 1972 -- valid -- cachorrito enano de Potosí, Catarina pupfish
  Melanogrammus aeglefinus (Linnaeus, 1758) -- valid -- aiglefin, haddock
  Melanorhinus cyanellus (Meek and Hildebrand, 1923) -- valid -- blackback silverside, pejerrey azulado
  Melanostigma atlanticum Koefoed, 1952 -- valid -- Atlantic soft pout, mollasse atlantique
  Melanostigma pammelas Gilbert, 1896 -- valid -- black eelpout, black eelpout, midwater eelpout, viruela carbonera
  Melichthys niger (Bloch, 1786) -- valid -- black durgon, Black Durgon, black triggerfish, cochito negro, negrito
  Membras gilberti (Jordan and Bollman, 1890) -- valid -- landia silverside, pejerrey landia
  Membras martinica (Valenciennes in Cuvier and Valenciennes, 1835) -- valid -- pejerrey rasposo, rough silverside
  Menidia audens Hay, 1882 -- invalid -- mississippi silverside, Mississippi silverside
  Menidia beryllina (Cope, 1867) -- valid -- inland silverside, plateadito salado, tidewater silverside
  Menidia clarkhubbsi Echelle and Mosier, 1982 -- valid -- Texas silverside
  Menidia colei Hubbs, 1936 -- valid -- golden silverside, plateadito de Progreso
  Menidia conchorum Hildebrand and Ginsburg, 1927 -- valid -- key silverside
  Menidia extensa Hubbs and Raney, 1946 -- valid -- Waccamaw silverside
  Menidia menidia (Linnaeus, 1766) -- valid -- Atlantic silverside, capucette
  Menidia peninsulae (Goode and Bean, 1879) -- valid -- plateadito playero, tidewater silverside
  Menticirrhus americanus (Linnaeus, 1758) -- valid -- berrugato zorro, jewsharp drummer, southern kingfish
  Menticirrhus elongatus (Günther, 1864) -- valid -- berrugato fino, slender kingfish, verrugata, verrugata
  Menticirrhus littoralis (Holbrook, 1847) -- valid -- berrugato del Golfo, Gulf kingfish
  Menticirrhus nasus (Günther, 1868) -- valid -- berrugato real, highfin kingfish
  Menticirrhus paitensis Hildebrand, 1946 -- valid -- berrugato chulo, Paita kingfish
  Menticirrhus panamensis (Steindachner, 1877) -- valid -- berrugato panameño, Panama kingfish
  Menticirrhus saxatilis (Bloch and Schneider, 1801) -- valid -- berrugato ratón, Gulf minkfish, northern kingfish
  Menticirrhus undulatus (Girard, 1854) -- valid -- berrugato californiano, California corbina, California whiting
  Merlucciidae Gill, 1884 -- valid -- hakes, merluccid hakes, merlucciid hakes, merlus, merluzas
  Merluccius albidus (Mitchill, 1818) -- valid -- offshore hake, offshore whiting
  Merluccius angustimanus Garman, 1899 -- valid -- merluza panameña, Panama hake
  Merluccius bilinearis (Mitchill, 1814) -- valid -- merlu argenté, silver hake
  Merluccius hernandezi Mathews, 1985 -- valid -- Cortez hake, merluza de Cortés
  Merluccius productus (Ayres, 1855) -- valid -- merluza norteña, North Pacific hake, Pacific hake, Pacific whiting, whiting
  Microcottus sellaris (Gilbert, 1896) -- valid -- brightbelly sculpin
  Microdesmidae -- valid -- dartfishes, peces lombriz, poissons-lombrics, wormfishes
  Microdesmus affinis Meek and Hildebrand, 1928 -- valid -- olivaceous wormfish, pez lombriz oliváceo
  Microdesmus carri Gilbert, 1966 -- valid -- pez lombriz punteado, stippled wormfish
  Microdesmus dipus Günther, 1864 -- valid -- banded wormfish, pez lombriz rayado
  Microdesmus dorsipunctatus Dawson, 1968 -- valid -- pez lombriz lomo punteado, spotback wormfish
  Microdesmus lanceolatus Dawson, 1962 -- valid -- lancetail wormfish
  Microdesmus longipinnis (Weymouth, 1910) -- valid -- pink wormfish
  Microdesmus retropinnis Jordan and Gilbert, 1882 -- valid -- pez lombriz aletatrasera, rearfin wormfish
  Microdesmus suttkusi Gilbert, 1966 -- valid -- pez lombriz manchado, spotside wormfish
  Microgadus proximus (Girard, 1854) -- valid -- Pacific tomcod
  Microgadus tomcod (Walbaum, 1792) -- valid -- Atlantic tomcod, frostfish, poulamon atlantique
  Microgobius brevispinis Ginsburg, 1939 -- valid -- Balboa goby, gobio de Balboa
  Microgobius carri Fowler, 1945 -- valid -- Seminole goby
  Microgobius cyclolepis Gilbert, 1890 -- valid -- gobio escamas redondas, roundscale goby
  Microgobius emblematicus (Jordan and Gilbert, 1882) -- valid -- emblem goby, gobio emblema
  Microgobius erectus Ginsburg, 1938 -- valid -- erect goby, gobio chato
  Microgobius gulosus (Girard, 1858) -- valid -- clown goby, gobio payaso
  Microgobius microlepis Longley and Hildebrand, 1940 -- valid -- banner goby, gobio bandera
  Microgobius miraflorensis Gilbert and Starks, 1904 -- valid -- gobio de Miraflores, Miraflores goby
  Microgobius tabogensis Meek and Hildebrand, 1928 -- valid -- gobio de Taboga, Taboga goby
  Microgobius thalassinus (Jordan and Gilbert, 1883) -- valid -- green goby
  Microlepidotus brevipinnis (Steindachner, 1869) -- valid -- brassy grunt, ronco bronceado
  Microlepidotus inornatus Gill, 1862 -- valid -- ronco rayadillo, wavyline grunt
  Micromesistius poutassou (Risso, 1827) -- valid -- blue whiting, Couch's whiting, poutassou, putassu
  Micrometrus aurora (Jordan and Gilbert, 1880) -- valid -- mojarra de arrecife, reef perch
  Micrometrus minimus (Gibbons, 1854) -- valid -- dwarf perch, mojarra enana
  Microphis brachyurus (Bleeker, 1853) -- valid -- opossum pipefish, pez pipa culebra, shorttailed pipefish, trompetero colinegro
  Micropogonias altipinnis (Günther, 1864) -- valid -- chano sureño, golden croaker
  Micropogonias ectenes (Jordan and Gilbert, 1882) -- valid -- chano mexicano, slender croaker
  Micropogonias megalops (Gilbert, 1890) -- valid -- chano norteño, Gulf croaker
  Micropogonias undulatus (Linnaeus, 1766) -- valid -- Atlantic croaker, gurrubata, roncadina
  Micropterus cataractae Williams and Burgess, 1999 -- valid -- shoal bass
  Micropterus coosae Hubbs and Bailey, 1940 -- valid -- redeye bass
  Micropterus dolomieu Lacepède, 1802 -- valid -- achigan à petite bouche, smallmouth bass
  Micropterus notius Bailey and Hubbs, 1949 -- valid -- Suwannee bass
  Micropterus punctulatus (Rafinesque, 1819) -- valid -- spotted bass
  Micropterus salmoides (Lacepède, 1802) -- valid -- achigan à grande bouche, largemouth bass, lobina negra
  Micropterus treculii (Vaillant and Bocourt, 1874) -- valid -- Guadaloupe bass, Guadalupe bass
  Microspathodon bairdii (Gill, 1862) -- valid -- bumphead damselfish, jaqueta vistosa
  Microspathodon chrysurus (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- chopita de cola amarilla, jaqueta coliamarilla, yellowtail damselfish
  Microspathodon dorsalis (Gill, 1862) -- valid -- giant damselfish, jaqueta gigante
  Microstomus pacificus (Lockington, 1879) -- valid -- Dover sole, Dover Sole, limande-sole, platija resbalosa
  Millerichthys robustus (Miller and Hubbs, 1974) -- valid -- almirante mexicano, Mexican rivulus
  Minytrema melanops (Rafinesque, 1820) -- valid -- spotted sucker
  Misgurnus anguillicaudatus (Cantor, 1842) -- valid -- dojo, Japanese weatherfish, oriental weatherfish
  Mitsukurina owstoni Jordan, 1898 -- valid -- goblin shark
  Mitsukurinidae Jordan, 1898 -- valid -- goblin sharks, requins-lutins, tiburones duende
  Moapa coriacea Hubbs and Miller, 1948 -- valid -- Moapa dace
  Mobula hypostoma (Bancroft, 1831) -- valid -- Atlantic devil ray, devil ray, manta del Golfo, manta enana
  Mobula japanica (Müller and Henle, 1841) -- valid -- manta arpón, spinetail mobula
  Mobula munkiana Notarbartolo-di-Sciara, 1987 -- valid -- manta chica, pygmy devil ray
  Mobula tarapacana (Philippi, 1893) -- valid -- manta cornuda, sicklefin devil ray
  Mobula thurstoni (Lloyd, 1908) -- valid -- manta doblada, smoothtail mobula
  Mobulidae Gill, 1893 -- valid -- devil rays, mantas, mantas, mantes
  Mola lanceolata (Liénard, 1840) -- invalid -- mola coliaguda, Sharptail Mola, sharptail mola
  Mola mola (Linnaeus, 1758) -- valid -- mola, môle, Ocean Sunfish, ocean sunfish, pez luna
  Molidae -- valid -- headfishes, molas, molas, ocean sunfishes, poissons-lune, trunkfishes
  Molva molva (Linnaeus, 1758) -- valid -- drizzie, European ling, ling, ling cod, molva, sea pike
  Monacanthidae -- valid -- filefishes, lijas, poissons-bourses
  Monacanthus ciliatus (Mitchill, 1818) -- valid -- fringed filefish, Fringed Filefish, lija de clavo, lime frangée, sobaco común
  Monacanthus tuckeri Bean, 1906 -- valid -- lija reticulada, Slender Filefish, slender filefish
  Monolene antillarum Norman, 1933 -- valid -- slim flounder, Slim Flounder
  Monolene asaedai Clark, 1936 -- invalid -- dark flounder, Dark Flounder, lenguado carbón
  Monolene dubiosa Garman, 1899 -- valid -- Acapulco flounder, Acapulco Flounder, lenguado acapulqueño
  Monolene maculipinna Garman, 1899 -- valid -- lenguado de profundidad, Pacific deepwater flounder, Pacific Deepwater Flounder
  Monolene sessilicauda Goode, 1880 -- valid -- cardeau des profondeurs, Deepwater Flounder, deepwater flounder
  Monopenchelys acuta (Parr, 1930) -- valid -- morena rubicunda, redface eel, redface moray
  Monopterus albus (Zuiew, 1793) -- valid -- Asian swamp eel, rice eel, swamp eel, white ricefield eel
  Moridae Moreau, 1881 -- valid -- carboneros, codlings, deepsea codfishes, moras, moras, moras y carboneros, morid cods, moros
  Moringua edwardsi (Jordan and Bollman, 1889) -- valid -- morenita, morenita de arena, spaghetti eel
  Moringuidae -- valid -- anguilas fideo, anguilles-spaghettis, spaghetti eels, worm eels
  Morone americana (Gmelin, 1789) -- valid -- baret, Maryland Bass hybrid, Virginia Bass hybrid, White Perch, White Perch White Bass hybrid, White Perch Yellow Bass hybrid
  Morone chrysops (Rafinesque, 1820) -- valid -- bar blanc, Palmetto Bass hybrid, Sunshine Bass hybrid, White Bass, White Bass White Perch hybrid, White Bass Yellow Bass hybrid, Whiterock Bass hybrid, Wiper hybrid
  Morone mississippiensis Jordan and Eigenmann in Eigenmann, 1887 -- valid -- Paradise Bass hybrid, White Bass Yellow Bass hybrid, White Perch Yellow Bass hybrid, Yellow Bass
  Morone saxatilis (Walbaum, 1792) -- valid -- bar rayé, lobina estriada, Maryland Bass hybrid, Palmetto Bass hybrid, Paradise Bass hybrid, rockfish, Striped Bass, Sunshine Bass hybrid, Virginia Bass hybrid, Whiterock Bass hybrid, Wiper hybrid
  Moronidae -- valid -- bars, lobinas norteñas, temperate basses
  Moxostoma albidum (Girard, 1856) -- valid -- longlip jumprock, matalote blanco
  Moxostoma anisurum (Rafinesque, 1820) -- valid -- chevalier blanc, silver redhorse
  Moxostoma ariommum Robins and Raney, 1956 -- valid -- bigeye jumprock
  Moxostoma austrinum Bean, 1880 -- valid -- matalote chuime, Mexican redhorse, west Mexican redhorse
  Moxostoma breviceps (Cope, 1870) -- valid -- hookfin redhorse, smallmouth redhorse
  Moxostoma carinatum (Cope, 1870) -- valid -- chevalier de rivière, river redhorse
  Moxostoma cervinum (Cope, 1868) -- valid -- black jumprock, blacktip jumprock
  Moxostoma collapsum (Cope, 1870) -- valid -- notchlip redhorse, piedmont redhorse, v-lip redhorse
  Moxostoma congestum (Baird and Girard, 1854) -- valid -- gray redhorse, matalote gris
  Moxostoma duquesnei (Lesueur, 1817) -- invalid -- black redhorse
  Moxostoma duquesnii (Lesueur, 1817) -- valid -- black redhorse
  Moxostoma erythrurum (Rafinesque, 1818) -- valid -- golden redhorse
  Moxostoma hubbsi Legendre, 1952 -- valid -- chevalier cuivré, copper redhorse
  Moxostoma lacerum (Jordan and Brayton, 1877) -- valid -- hairlip redhorse, harelip sucker
  Moxostoma lachneri Robins and Raney, 1956 -- valid -- greater jumprock
  Moxostoma macrolepidotum (Lesueur, 1817) -- valid -- chevalier rouge, shorthead redhorse
  Moxostoma mascotae Regan, 1907 -- valid -- Mascota jumprock, matalote de Mascota
  Moxostoma pappillosum (Cope, 1870) -- valid -- slender redhorse, suckermouth redhorse, V-lip redhorse
  Moxostoma pisolabrum Trautman and Martin, 1951 -- valid -- pealip redhorse
  Moxostoma poecilurum Jordan, 1877 -- valid -- blacktail redhorse
  Moxostoma robustum (Cope, 1870) -- valid -- robust redhorse, smallfin redhorse
  Moxostoma rupiscartes Jordan and Jenkins in Jordan, 1889 -- valid -- striped jumprock
  Moxostoma valenciennesi Jordan, 1885 -- valid -- chevalier jaune, greater redhorse
  Mugil cephalus Linnaeus, 1758 -- valid -- black mullet, gray mullet, lisa, lisa rayada, striped mullet
  Mugil curema Valenciennes in Cuvier and Valenciennes, 1836 -- valid -- lisa blanca, silver mullet, white mullet
  Mugil gyrans (Jordan and Gilbert, 1884) -- valid -- fantail mullet, lisa carrusel, whirligig mullet
  Mugil hospes Jordan and Culver in Jordan, 1895 -- valid -- hospe mullet, lisa hospe, lisita
  Mugil liza Valenciennes in Cuvier and Valenciennes, 1836 -- valid -- lebrancho, liza
  Mugil setosus Gilbert, 1892 -- valid -- lisa liseta, liseta mullet
  Mugil trichodon Poey, 1875 -- valid -- fantail mullet, lisa amarilla, lisa de abanico
  Mugilidae -- valid -- grey mullets, lisas, muges, mullets
  Mullidae -- valid -- chivos, goat fishes, goatfishes, red mullets, surmulets, surmullets
  Mulloidichthys dentatus (Gill, 1862) -- valid -- chivo barbón, Mexican goatfish
  Mulloidichthys martinicus (Cuvier in Cuvier and Valenciennes, 1829) -- valid -- chivo amarillo, salmonete amarillo, yellow goatfish
  Mullus auratus Jordan and Gilbert, 1882 -- valid -- chivo colorado, red goatfish, salmonete rojo
  Muraena argus (Steindachner, 1870) -- valid -- Argus moray, morena Argos
  Muraena clepsydra Gilbert in Jordan and Evermann, 1898 -- valid -- hourglass moray, morena clepsidra
  Muraena lentiginosa Jenyns, 1842 -- valid -- jewel moray, morena pinta
  Muraena retifera Goode and Bean, 1882 -- valid -- morena reticulada, reticulate moray
  Muraena robusta Osório, 1911 -- valid -- stout moray
  Muraenesocidae -- valid -- congres-brochets, congrios picudos, false conger eels, pike congers
  Muraenidae -- valid -- moray eels, morays, morenas, murènes
  Mustelus californicus Gill, 1864 -- valid -- cazón mamón, gray smoothhound
  Mustelus canis (Mitchill, 1815) -- valid -- cazón dientón, dusky smooth-hound, smooth dogfish
  Mustelus dorsalis Gill, 1864 -- valid -- cazón tripa, sharptooth smooth-hound, sharptooth smoothhound
  Mustelus henlei (Gill, 1863) -- valid -- brown smoothhound, cazón hilacho
  Mustelus lunulatus Jordan and Gilbert, 1882 -- valid -- cazón segador, sicklefin smoothhound
  Mustelus norrisi Springer, 1939 -- valid -- boca dulce, cazón viuda, Florida smoothhound, narrowfin smooth-hound
  Mustelus sinusmexicanus Heemstra, 1997 -- valid -- cazón del Golfo, Gulf smoothhound
  Mycteroperca acutirostris (Valenciennes in Cuvier and Valenciennes, 1828) -- valid -- bonací rojo, cherna peineta, comb grouper, western comb grouper
  Mycteroperca bonaci (Poey, 1860) -- valid -- aguaj í, black grouper, cherna negrillo
  Mycteroperca interstitialis (Poey, 1860) -- valid -- abadejo, cherna boca amarilla, yellowmouth grouper
  Mycteroperca jordani (Jenkins and Evermann, 1889) -- valid -- baya, Gulf grouper
  Mycteroperca microlepis (Goode and Bean, 1879) -- valid -- abadejo, charcoal belly, gag
  Mycteroperca phenax Jordan and Swain, 1884 -- valid -- abadejo garropa, scamp
  Mycteroperca prionura Rosenblatt and Zahuranec, 1967 -- valid -- cabrilla chiruda, sawtail grouper
  Mycteroperca rosacea (Streets, 1877) -- valid -- cabrilla sardinera, golden grouper, leopard grouper
  Mycteroperca tigris (Valenciennes in Cuvier and Valenciennes, 1833) -- valid -- bonací gato, cabrilla gato, tiger grouper
  Mycteroperca venenosa (Linnaeus, 1758) -- valid -- arigua, guacamayo, princess rockfish, yellowfin grouper
  Mycteroperca xenarcha Jordan, 1888 -- valid -- broomtail grouper, cabrilla plomuda
  Myctophidae -- valid -- lanternfishes, linternillas, poissons-lanternes
  Myctophum affine (Lütken, 1892) -- valid -- metallic lanternfish, pez linterna
  Myctophum punctatum Rafinesque, 1810 -- valid -- lanterne ponctuée, spotted lanternfish, spotted laternfish
  Myliobatidae Bonaparte, 1838 -- valid -- águilas marinas, aigles de mer, eagle rays
  Myliobatis californica Gill, 1865 -- valid -- bat ray, tecolote
  Myliobatis freminvillei Lesueur, 1824 -- invalid -- águila naríz de vaca, bullnose ray
  Myliobatis goodei Garman, 1885 -- valid -- southern eagle ray
  Myliobatis longirostris Applegate and Fitch, 1964 -- valid -- águila picuda, longnose eagle ray
  Mylocheilus caurinus (Richardson, 1836) -- valid -- peamouth
  Mylopharodon conocephalus (Baird and Girard in Girard, 1854) -- valid -- hardhead
  Myoxocephalus aenaeus (Mitchill, 1814) -- valid -- chaboisseau bronzé, grubby, little sculpin
  Myoxocephalus jaok (Cuvier in Cuvier and Valenciennes, 1829) -- valid -- plain sculpin
  Myoxocephalus niger (Bean, 1881) -- valid -- warthead sculpin
  Myoxocephalus octodecemspinosus (Mitchill, 1814) -- valid -- chaboisseau à dix-huit épines, gray sculpin, longhorn sculpin
  Myoxocephalus polyacanthocephalus (Pallas, 1814) -- valid -- great sculpin
  Myoxocephalus quadricornis (Linnaeus, 1758) -- valid -- chaboisseau à quatre cornes, fourhorn sculpin
  Myoxocephalus scorpioides (Fabricius, 1780) -- valid -- Arctic sculpin, chaboisseau arctique
  Myoxocephalus scorpius (Linnaeus, 1758) -- valid -- chaboisseau à épines courtes, shorthorn sculpin
  Myoxocephalus stelleri Tilesius, 1811 -- valid -- frog sculpin, Steller's sculpin
  Myoxocephalus thompsonii (Girard, 1851) -- valid -- chabot de profondeur, deepwater sculpin
  Myoxocephalus verrucosus (Bean, 1881) -- valid -- warty sculpin
  Myrichthys aspetocheiros McCosker and Rosenblatt, 1993 -- valid -- longfin spotted snake eel, tieso aletón
  Myrichthys breviceps (Richardson, 1848) -- valid -- safío de manchas blancas, sharptail eel, tieso afilado
  Myrichthys ocellatus (Lesueur, 1825) -- valid -- goldspotted eel, palespotted eel, safío ocelado, tieso manchas doradas
  Myrichthys pantostigmius Jordan and McGregor in Jordan and Evermann, 1898 -- valid -- Clarion snake eel, tieso manchado de Clarión
  Myrichthys tigrinus Girard, 1859 -- valid -- tieso tigre, tiger snake eel
  Myripristis berndti Jordan and Evermann, 1903 -- valid -- bigscale soldierfish, soldado azotado
  Myripristis clarionensis Gilbert, 1897 -- valid -- soldado amarillo, yellow soldierfish
  Myripristis jacobus Cuvier in Cuvier and Valenciennes, 1829 -- valid -- blackbar soldierfish, candil barreado, soldado raya negra
  Myripristis leiognathus Valenciennes, 1846 -- valid -- Pacific soldierfish, Panamic soldierfish, soldado panámico
  Myrophis platyrhynchus Breder, 1927 -- valid -- broadnose worm eel, tieso chato
  Myrophis punctatus Lütken, 1852 -- valid -- safío pecoso, speckled worm eel, tieso gusano
  Myrophis vafer Jordan and Gilbert, 1883 -- valid -- Pacific worm eel, tieso lombriz
  Myxine glutinosa Linnaeus, 1758 -- valid -- Atlantic hagfish, myxine du nord
  Myxini -- valid -- hagfishes
  Myxinidae -- valid -- brujas, hagfishes, myxines
  Myxodagnus macrognathus Hildebrand, 1946 -- valid -- longjaw stargazer, miraestrellas bocona
  Myxodagnus opercularis Gill, 1861 -- valid -- dart stargazer, miraestrellas virote
  Nannobrachium regale (Gilbert, 1892) -- valid -- linternilla puntita, pinpoint lampfish
  Narcine bancroftii (Griffith and Smith, 1834) -- valid -- lesser electric ray, raya eléctrica torpedo
  Narcine vermiculatus Breder, 1928 -- valid -- raya eléctrica rayada, vermiculate electric ray
  Narcinidae Gill, 1862 -- valid -- electric rays, narcinidés, numbfishes, rayas eléctricas
  Nasolamia velox (Gilbert in Jordan and Evermann, 1898) -- valid -- tiburón coyotito, whitenose shark
  Naucrates ductor (Linnaeus, 1758) -- valid -- pez piloto, pilotfish, piloto
  Nautichthys oculofasciatus (Girard, 1858) -- valid -- sailfin sculpin
  Nautichthys pribilovius (Jordan and Gilbert in Jordan and Evermann, 1898) -- valid -- eyeshade sculpin
  Nautichthys robustus Peden, 1970 -- valid -- shortmast sculpin
  Nealotus tripes Johnson, 1865 -- valid -- black snake mackerel, dómine negro, escolar listado
  Nebris occidentalis Vaillant, 1897 -- valid -- corvina guavina, guavina, guavina, Pacific smalleye croaker
  Nectoliparis pelagicus Gilbert and Burke, 1912 -- valid -- tadpole snailfish
  Negaprion brevirostris (Poey, 1868) -- valid -- galano de ley, lemon shark, tiburón limón
  Nemaclinus atelestos Böhlke and Springer, 1975 -- valid -- threadfin blenny
  Nematistiidae -- valid -- papagallos, plumières, roosterfish, roosterfishes
  Nematistius pectoralis Gill, 1862 -- valid -- papagallo, roosterfish
  Nemichthyidae -- valid -- anguilas tijera, poissons-avocettes, snipe eels
  Nemichthys scolopaceus Richardson, 1848 -- valid -- Atlantic snipe eel, slender snipe eel, tijera esbelta
  Neobythites gilli Goode and Bean, 1885 -- valid -- brótula amarillenta, twospot brotula
  Neobythites marginatus Goode and Bean, 1886 -- valid -- stripefin brotula
  Neobythites stelliferoides Gilbert, 1890 -- valid -- brótula de hebra, thread brotula
  Neoclinus blanchardi Girard, 1858 -- valid -- sarcastic fringehead, tubícola chusco
  Neoclinus stephensae Hubbs, 1953 -- valid -- tubícola aletiamarilla, yellowfin fringehead
  Neoclinus uninotatus Hubbs, 1953 -- valid -- onespot fringehead, tubícola mancha singular
  Neoconger mucronatus Girard, 1858 -- valid -- anguila fideo aquillada, morenita acanalada, ridged eel
  Neoepinnula americana (Grey, 1953) -- valid -- American sackfish, escolar americano
  Neogobius melanostomus (Pallas, 1814) -- valid -- gobie à taches noires, round goby
  Neomerinthe hemingwayi Fowler, 1935 -- valid -- rascacio mejilla espinosa, spinycheek scorpionfish
  Neoniphon marianus (Cuvier in Cuvier and Valenciennes, 1829) -- valid -- carajuelo mariano, longjaw squirrelfish, longspine squirrelfish
  Neoopisthopterus tropicus (Hildebrand, 1946) -- valid -- sardinela pelada, tropical longfin herring
  Nes longus (Nichols, 1914) -- valid -- gobio camaronícola, gobio de manchas naranja, orangespotted goby
  Nesiarchus nasutus Johnson, 1862 -- valid -- black gemfish, dómine narizón, escolar narigudo, violet snake mackerel
  Nettastomatidae -- valid -- anguilles à bec de canard, duckbill eels, serpentinas
  Nettenchelys pygmaea Smith and Böhlke in Smith, Böhlke and Castle, 1981 -- valid -- pygmy pikeconger, serpentina enana
  Nezumia bairdii (Goode and Bean, 1877) -- valid -- common grenadier, granadero narizón, grenadier du Grand Banc, marlin-spike, marlin-spike grenadier, rat-tail
  Nezumia sclerorhynchus (Valenciennes, 1838) -- valid -- bluntsnout grenadier, roughtip grenadier
  Nezumia stelgidolepis (Gilbert, 1890) -- valid -- California grenadier
  Nicholsina denticulata (Evermann and Radcliff, 1917) -- valid -- loosetooth parrotfish, pococho beriquete
  Nicholsina usta (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- emerald parrotfish, loro esmeralda
  Nocomis asper Lachner and Jenkins, 1971 -- valid -- redspot chub
  Nocomis biguttatus (Kirtland, 1840) -- valid -- hornyhead chub
  Nocomis effusus Lachner and Jenkins, 1967 -- valid -- redtail chub
  Nocomis leptocephalus (Girard, 1856) -- valid -- bluehead chub
  Nocomis micropogon (Cope, 1865) -- valid -- river chub
  Nocomis platyrhynchus Lachner and Jenkins, 1971 -- valid -- bigmouth chub
  Nocomis raneyi Lachner and Jenkins, 1971 -- valid -- bull chub
  Nomeidae -- valid -- derivantes, driftfishes, man-of-war fishes, physaliers, shepherdfishes
  Nomeus gronovii (Gmelin, 1789) -- valid -- derivante fragata portuguesa, man-of-war fish, pastorcillo
  Notacanthidae -- valid -- anguilas espinosas, poissons-tapirs à épines, spiny eels
  Notacanthus chemnitzii Bloch, 1788 -- valid -- snubnosed spiny eel, spiny eel
  Notemigonus crysoleucas (Mitchill, 1814) -- valid -- golden shiner, méné jaune
  Notopteridae -- valid -- cuchillos de pluma, featherbacks, featherfin knifefishes, knifefishes, poissons-couteaux à nageoire plumeuse
  Notorynchus cepedianus (Péron, 1807) -- valid -- bluntnose sevengill shark, broadnose sevengill shark, sevengill shark, tiburón pinto
  Notoscopelus resplendens (Richardson, 1845) -- valid -- linternilla brillante, patchwork lampfish
  Notropis aguirrepequenoi Contreras-Balderas and Rivera-Teillery, 1973 -- valid -- carpita del Pilón, Soto la Marina shiner
  Notropis albizonatus Warren and Burr in Warren, Burr and Grady, 1994 -- valid -- Palezone shiner
  Notropis alborus Hubbs and Raney, 1947 -- valid -- whitemouth shiner
  Notropis altipinnis (Cope, 1870) -- valid -- highfin shiner
  Notropis amabilis (Girard, 1856) -- valid -- carpita texana, Texas shiner
  Notropis amecae Chernoff and Miller, 1986 -- valid -- Ameca shiner, carpita del Ameca
  Notropis ammophilus Suttkus and Boschung, 1990 -- valid -- orangefin shiner
  Notropis amoenus (Abbott, 1874) -- valid -- comely shiner
  Notropis anogenus Forbes, 1885 -- valid -- pugnose shiner
  Notropis ariommus (Cope, 1867) -- valid -- popeye shiner
  Notropis asperifrons Suttkus and Raney, 1955 -- valid -- burrhead shiner
  Notropis atherinoides Rafinesque, 1818 -- valid -- emerald shiner, méné émeraude
  Notropis atrocaudalis Evermann, 1892 -- valid -- blackspot shiner
  Notropis aulidion Chernoff and Miller, 1986 -- valid -- carpita de Durango, Durango shiner
  Notropis baileyi Suttkus and Raney, 1955 -- valid -- rough shiner
  Notropis bairdi Hubbs and Ortenburger, 1929 -- valid -- Red River shiner
  Notropis bifrenatus (Cope, 1867) -- valid -- bridle shiner, méné d'herbe
  Notropis blennius (Girard, 1856) -- valid -- river shiner
  Notropis boops Gilbert, 1884 -- valid -- bigeye shiner
  Notropis boucardi (Günther, 1868) -- invalid -- Balsas shiner, carpita del Balsas
  Notropis braytoni Jordan and Evermann, 1896 -- valid -- carpita tamaulipeca, Tamaulipas shiner
  Notropis buccatus (Cope, 1865) -- valid -- silverjaw minnow
  Notropis buccula Cross, 1953 -- valid -- smalleye shiner
  Notropis buchanani Meek, 1896 -- valid -- carpita fantasma, ghost shiner
  Notropis cahabae Mayden and Kuhajda, 1989 -- valid -- Cahaba shiner
  Notropis calientis Jordan and Snyder, 1899 -- valid -- carpita amarilla, yellow shiner
  Notropis candidus Suttkus, 1980 -- valid -- silverside shiner
  Notropis chalybaeus (Cope, 1867) -- valid -- ironcolor shiner
  Notropis chihuahua Woolman, 1892 -- valid -- carpita chihuahuense, Chihuahua shiner
  Notropis chiliticus (Cope, 1870) -- valid -- redlip shiner
  Notropis chlorocephalus (Cope, 1870) -- valid -- greenhead shiner
  Notropis chrosomus (Jordan, 1877) -- valid -- rainbow shiner
  Notropis cumingii (Günther, 1868) -- valid -- Atoyac chub, carpita del Atoyac
  Notropis cummingsae Myers, 1925 -- valid -- dusky shiner
  Notropis dorsalis (Agassiz, 1854) -- invalid -- bigmouth shiner
  Notropis edwardraneyi Suttkus and Clemmer, 1968 -- valid -- fluvial shiner
  Notropis girardi Hubbs and Ortenburger, 1929 -- valid -- Arkansas River shiner
  Notropis greenei Hubbs and Ortenburger, 1929 -- valid -- wedgespot shiner
  Notropis harperi Fowler, 1941 -- valid -- redeye chub, redeye shiner
  Notropis heterodon (Cope, 1865) -- valid -- blackchin shiner, menton noir
  Notropis heterolepis Eigenmann and Eigenmann, 1893 -- valid -- blacknose shiner, museau noir
  Notropis hudsonius (Clinton, 1824) -- valid -- queue à tache noire, queue à tâche noire, spottail shiner
  Notropis hypsilepis Suttkus and Raney, 1955 -- valid -- highscale shiner
  Notropis jemezanus (Cope in Cope and Yarrow, 1875) -- valid -- carpita del Bravo, Rio Grande shiner
  Notropis leuciodus (Cope, 1868) -- valid -- Tennessee shiner
  Notropis longirostris (Hay, 1881) -- valid -- longnose shiner
  Notropis lutipinnis (Jordan and Brayton, 1878) -- valid -- yellowfin shiner
  Notropis maculatus (Hay, 1881) -- valid -- taillight shiner
  Notropis mekistocholas Snelson, 1971 -- valid -- Cape Fear shiner
  Notropis melanostomus Bortone, 1989 -- valid -- blackmouth shiner
  Notropis micropteryx (Cope, 1868) -- valid -- highland shiner, redface shiner, southern rosyface shiner
  Notropis moralesi de Buen, 1955 -- valid -- carpita Tepelneme, Papaloapan chub
  Notropis nazas Meek, 1904 -- valid -- carpita del Nazas, Nazas shiner
  Notropis nubilus (Forbes in Jordan, 1878) -- valid -- Ozark minnow, roseate shiner
  Notropis orca Woolman, 1894 -- valid -- carpita de El Paso, phantom shiner
  Notropis ortenburgeri Hubbs in Ortenburger and Hubbs, 1927 -- valid -- Kiamichi shiner
  Notropis oxyrhynchus Hubbs and Bonham, 1951 -- valid -- sharpnose shiner
  Notropis ozarcanus Meek, 1891 -- valid -- Ozark shiner
  Notropis percobromus (Cope, 1871) -- valid -- carmine shiner
  Notropis perpallidus Hubbs and Black, 1940 -- valid -- peppered shiner
  Notropis petersoni Fowler, 1942 -- valid -- coastal shiner
  Notropis photogenis (Cope, 1865) -- valid -- silver shiner
  Notropis potteri Hubbs and Bonham, 1951 -- valid -- chub shiner
  Notropis procne (Cope, 1865) -- valid -- swallowtail shiner
  Notropis rafinesquei Suttkus, 1991 -- valid -- Yazoo shiner
  Notropis rubellus (Agassiz, 1850) -- valid -- rosyface shiner, tête rose
  Notropis rubricroceus (Cope, 1868) -- valid -- saffron shiner
  Notropis rupestris Page in Page and Beckham, 1987 -- valid -- bedrock shiner
  Notropis sabinae Jordan and Gilbert, 1886 -- valid -- Sabine shiner
  Notropis saladonis Hubbs and Hubbs, 1958 -- valid -- carpita del Salado, Salado shiner
  Notropis scabriceps (Cope, 1868) -- valid -- New River shiner
  Notropis scepticus (Jordan and Gilbert, 1883) -- valid -- sandbar shiner
  Notropis semperasper Gilbert, 1961 -- valid -- roughhead shiner
  Notropis shumardi (Girard, 1856) -- valid -- silverband shiner
  Notropis simus (Cope in Cope and Yarrow, 1875) -- valid -- bluntnose shiner, carpita chata
  Notropis spectrunculus (Cope, 1868) -- valid -- mirror shiner
  Notropis stilbius Jordan, 1877 -- valid -- silverstripe shiner
  Notropis stramineus (Cope, 1865) -- valid -- carpita arenera, méné paille, sand shiner
  Notropis suttkusi Humphries and Cashner, 1994 -- valid -- rocky shiner
  Notropis telescopus (Cope, 1868) -- valid -- telescope shiner
  Notropis texanus (Girard, 1856) -- valid -- weed shiner
  Notropis topeka (Gilbert, 1884) -- valid -- Topeka shiner
  Notropis tropicus Hubbs and Miller, 1975 -- valid -- carpita tropical, pygmy shiner
  Notropis uranoscopus Suttkus, 1959 -- valid -- skygazer shiner
  Notropis volucellus (Cope, 1865) -- valid -- méné pâle, mimic shiner
  Notropis wickliffi Trautman, 1931 -- valid -- channel shiner
  Notropis xaenocephalus (Jordan, 1877) -- valid -- Coosa shiner
  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 -- barbotte des rapides, stonecat
  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 -- chat-fou brun, tadpole madtom
  Noturus hildebrandi (Bailey and Taylor, 1950) -- valid -- least madtom
  Noturus insignis (Richardson, 1836) -- valid -- chat-fou liséré, margined madtom
  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 -- northern madtom
  Noturus taylori Douglas, 1972 -- valid -- Caddo madtom
  Noturus trautmani Taylor, 1969 -- valid -- Scioto madtom
  Novaculichthys taeniourus (Lacépède, 1801) -- valid -- clown wrasse, cuchillo dragón, rockmover, rockmover wrasse
  Novumbra hubbsi Schultz, 1929 -- valid -- Olympic mudminnow
  Occella dodecaedron (Tilesius, 1813) -- valid -- Bering poacher
  Ocyurus chrysurus (Bloch, 1791) -- valid -- rabirrubia, rubia, yellowtail snapper
  Odontaspididae Müller and Henle, 1839 -- valid -- goblin sharks, requins-taureaux, sand sharks, sand tiger sharks, sand tigers, tiburones toro
  Odontaspis ferox (Risso, 1810) -- valid -- bumpytail raggedtooth, ragged-tooth shark, smalltooth sand tiger, tiburón dientes de perro
  Odontaspis noronhai (Maul, 1955) -- valid -- bigeye sand shark, bigeye sand tiger
  Odontognathus panamensis (Steindachner, 1876) -- valid -- Panama longfin herring, sardina machete panameña
  Odontopyxis trispinosa Lockington, 1880 -- valid -- bandido enano, pygmy poacher
  Odontoscion dentex (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- corvina dentuda, reef croaker
  Ogcocephalidae Jordan, 1895 -- valid -- batfishes, chauves-souris de mer, murciélagos
  Ogcocephalus corniger Bradbury, 1980 -- valid -- longnose batfish, pez diablo narizón
  Ogcocephalus cubifrons (Richardson, 1836) -- valid -- murciélago diablo, polka-dot batfish
  Ogcocephalus declivirostris Bradbury, 1980 -- valid -- murciélago inclinado, slantbrow batfish
  Ogcocephalus nasutus (Cuvier, 1829) -- valid -- murciélago tapacaminos, pez diablo ñato, shortnose batfish
  Ogcocephalus pantostictus Bradbury, 1980 -- valid -- murciélago manchado, spotted batfish
  Ogcocephalus parvus Longley and Hildebrand, 1940 -- valid -- murciélago lomo áspero, roughback batfish
  Ogcocephalus rostellum Bradbury, 1980 -- valid -- palefin batfish
  Ogilbia cayorum Evermann and Kendall, 1898 -- valid -- brótula rojiza, key brotula
  Ogilbia pearsei (Hubbs, 1938) -- invalid -- dama blanca ciega, Mexican blind brotula
  Ogilbia ventralis (Gill, 1863) -- valid -- brótula del Golfo, Gulf brotula
  Oligocottus maculosus Girard, 1856 -- valid -- tidepool sculpin
  Oligocottus rimensis (Greeley, 1899) -- valid -- charrasco ensillado, saddleback sculpin
  Oligocottus rubellio (Greeley, 1899) -- valid -- charrasco rosado, rosy sculpin
  Oligocottus snyderi Greeley in Jordan and Evermann, 1898 -- valid -- charrasco peludo, fluffy sculpin
  Oligoplites altus (Günther, 1868) -- valid -- leatherjacket, longjaw leatherjack, piña bocona
  Oligoplites refulgens Gilbert and Starks, 1904 -- valid -- piña flaca, shortjaw leatherjack
  Oligoplites saurus (Bloch and Schneider, 1801) -- valid -- leatherjack, leatherjacket, piña sietecueros, zapatero
  Oncorhynchus chrysogaster (Needham and Gard, 1964) -- valid -- Mexican golden trout, trucha dorada mexicana
  Oncorhynchus clarki (Richardson, 1836) -- invalid
  Oncorhynchus clarkii (Richardson, 1836) -- valid -- cutthroat trout, trucha degollada, truite fardée
  Oncorhynchus gilae (Miller, 1950) -- valid -- Gila trout
  Oncorhynchus gorbuscha (Walbaum, 1792) -- valid -- humpback, humpbacked salmon, pink salmon, saumon rose
  Oncorhynchus keta (Walbaum in Artedi, 1792) -- valid -- chum salmon
  Oncorhynchus kisutch (Walbaum, 1792) -- valid -- coho salmon, salmón plateado, saumon coho, silver salmon
  Oncorhynchus mykiss (Walbaum, 1792) -- valid -- rainbow trout, redband trout, steelhead, trucha arcoiris, truite arc-en-ciel
  Oncorhynchus nerka (Walbaum in Artedi, 1792) -- valid -- blueback salmon, kokanee, red salmon, saumon rouge, sockeye salmon
  Oncorhynchus tshawytscha (Walbaum in Artedi, 1792) -- valid -- Chinook salmon, king salmon, salmón boquinegra, saumon chinook
  Ophichthidae -- valid -- serpents de mer, snake eels, tiesos, worm eels
  Ophichthus apachus McCosker and Rosenblatt, 1998 -- valid -- thin snake eel, tieso delgado
  Ophichthus cruentifer (Goode and Bean, 1896) -- valid -- margined snake eel
  Ophichthus frontalis Garman, 1899 -- valid -- deathbanded snake eel, tieso funebre
  Ophichthus gomesii (Castelnau, 1855) -- valid -- safío prieto, shrimp eel, tieso camaronero
  Ophichthus hyposagmatus McCosker and Böhlke, 1984 -- valid -- faintsaddled snake eel
  Ophichthus longipenis McCosker and Rosenblatt, 1998 -- valid -- slender snake eel, tieso fino
  Ophichthus mecopterus McCosker and Rosenblatt, 1998 -- valid -- longarmed snake eel, tieso brazo largo
  Ophichthus melanoporus Kanazawa, 1963 -- valid -- blackpored eel
  Ophichthus omorgmus McCosker and Böhlke, 1984 -- valid -- dottedline snake eel
  Ophichthus ophis (Linnaeus, 1758) -- valid -- safío de manchas negras, spotted snake eel
  Ophichthus puncticeps (Kaup, 1860) -- valid -- palespotted eel
  Ophichthus rex Böhlke and Caruso, 1980 -- valid -- king snake eel, lairón
  Ophichthus triserialis (Kaup, 1856) -- valid -- Pacific snake eel, tieso del Pacífico
  Ophichthus zophochir Jordan and Gilbert, 1882 -- valid -- tieso amarillo, yellow snake eel
  Ophidiidae -- valid -- brotulas, brótulas, brótulas y congriperlas, congriperlas, cusk eels, cusk-eels, donzelles
  Ophidiiformes -- valid -- ophidiiforms
  Ophidion antipholus Lea and Robins, 2003 -- valid -- congriperla narizón, longnose cusk-eel
  Ophidion dromio Lea and Robins, 2003 -- valid -- shorthead cusk-eel
  Ophidion galeoides (Gilbert, 1890) -- valid -- congriperla adornada, spotfin cusk-eel
  Ophidion grayi (Fowler, 1948) -- valid -- blotched cusk-eel
  Ophidion holbrookii Putnam, 1874 -- valid -- bank cusk-eel, congriperla de bajos
  Ophidion imitator Lea, 1997 -- valid -- congriperla mimética, mimic cusk-eel
  Ophidion iris Breder, 1936 -- valid -- brighteye cusk-eel, congriperla arcoiris
  Ophidion josephi Girard, 1858 -- valid -- congriperla crestada, crested cusk-eel
  Ophidion lagochila (Böhlke and Robins, 1959) -- valid -- congriperla labio leporino, hairlip cusk, harelip cusk-eel
  Ophidion marginatum DeKay, 1842 -- valid -- striped cusk-eel
  Ophidion nocomis Robins and Böhlke, 1959 -- valid -- congriperla nacarada, letter opener
  Ophidion robinsi Fahay, 1992 -- valid -- colonial cusk-eel
  Ophidion scrippsae (Hubbs, 1916) -- valid -- basketweave cusk-eel, congriperla canastera
  Ophidion selenops Robins and Böhlke, 1959 -- valid -- mooneye cusk-eel
  Ophioblennius macclurei (Silvester, 1915) -- valid -- blenio bembirrojo, borracho labio rojo, redlip blenny
  Ophioblennius steindachneri Jordan and Evermann, 1898 -- valid -- borracho mono, Panamic fanged blenny
  Ophiodon elongatus Girard, 1854 -- valid -- lingcod, molva
  Ophioscion scierus (Jordan and Gilbert, 1884) -- valid -- corvineta parda, dusky croaker
  Ophioscion strabo Gilbert, 1897 -- valid -- corvineta bizca, squint-eyed croaker
  Ophioscion typicus Gill, 1863 -- valid -- corvineta corredora, racer croaker
  Ophioscion vermicularis (Günther, 1867) -- valid -- corvineta cococha, wormlined croaker
  Ophisternon aenigmaticum Rosen and Greenwood, 1976 -- valid -- anguila falsa, obscure swamp eel, swamp eel
  Ophisternon infernale (Hubbs, 1938) -- valid -- anguila ciega yucateca, blind swamp eel
  Opisthonema bulleri (Regan, 1904) -- valid -- sardina crinuda azul, slender thread herring
  Opisthonema libertate (Günther, 1867) -- valid -- deepbody thread herring, Pacific thread herring, sardina crinuda
  Opisthonema medirastre Berry and Barrett, 1963 -- valid -- middling thread herring, sardina crinuda machete
  Opisthonema oglinum (Lesueur, 1818) -- valid -- Atlantic thread herring, machuelo, sardina vivita de hebra
  Opisthoproctidae -- valid -- barreleyes, peces duende, revenants, spookfishes
  Opisthopterus dovii (Günther, 1868) -- valid -- Dove's longfin herring, Pacific longfin herring, sardina machete chata
  Opistognathidae -- valid -- bocones, jawfishes, smilers, tout-en-gueule
  Opistognathus aurifrons (Jordan and Thompson, 1905) -- valid -- bocón cabeza amarilla, guardian cabeziamarillo, yellowhead jawfish
  Opistognathus lonchurus Jordan and Gilbert, 1882 -- valid -- bocón bigote, guardian verdoso, moustache jawfish
  Opistognathus macrognathus Poey, 1860 -- valid -- banded jawfish, guardian bocón, longjaw jawfish, spotfin jawfish
  Opistognathus maxillosus Poey, 1860 -- valid -- bocón moteado, guardian jaspeado, mottled jawfish
  Opistognathus megalepis Smith-Vaniz, 1972 -- valid -- bocón escamón, largescale jawfish
  Opistognathus melachasme Smith-Vaniz, 1972 -- valid -- megabocón, megamouth jawfish, yellowmouth jawfish
  Opistognathus mexicanus Allen and Robertson, 1991 -- valid -- bocón mexicano, Mexican jawfish
  Opistognathus nothus Smith-Vaniz, 1997 -- valid -- yellowmouth jawfish
  Opistognathus punctatus Peters, 1869 -- valid -- bocón punteado, finespotted jawfish
  Opistognathus rhomaleus Jordan and Gilbert, 1882 -- valid -- bocón gigante, giant jawfish
  Opistognathus robinsi Smith-Vaniz, 1997 -- valid -- spotfin jawfish
  Opistognathus rosenblatti Allen and Robertson, 1991 -- valid -- bluespotted jawfish, bocón manchas azules
  Opistognathus scops (Jenkins and Evermann, 1889) -- valid -- bocón ocelado, bullseye jawfish
  Opistognathus whitehursti (Longley, 1927) -- valid -- bocón prieto, dusky jawfish, guardian escamudo
  Opsanus beta (Goode and Bean, 1880) -- valid -- Gulf toadfish, sapo boquiblanca, sapo de boca blanca
  Opsanus dichrostomus Collette, 2001 -- valid -- bicolor toadfish, sapo bicolor
  Opsanus pardus (Goode and Bean, 1880) -- valid -- leopard toadfish, sapo leopardo
  Opsanus tau (Linnaeus, 1766) -- valid -- oyster toadfish
  Opsopoeodus emiliae Hay, 1881 -- valid -- pugnose minnow
  Oregonichthys crameri (Snyder, 1908) -- valid -- Oregon chub
  Oregonichthys kalawatseti Markle, Pearsons and Bills, 1991 -- valid -- Umpqua chub, Umpqua Oregon chub
  Oreochromis aureus (Steindachner, 1864) -- valid -- blue tilapia, tilapia azul
  Oreochromis mossambicus (Peters, 1852) -- valid -- Mozambique mouth-breeder, Mozambique mouthbrooder, Mozambique tilapia, tilapia mosambica
  Oreochromis niloticus (Linnaeus, 1758) -- valid -- Nile mouthbreeder, Nile tilapia, tilapia del Nilo
  Oreochromis urolepis (Norman, 1922) -- valid -- Wami tilapia
  Orthodon microlepidotus (Ayres, 1854) -- valid -- Sacramento blackfish
  Orthonopias triacis Starks and Mann, 1911 -- valid -- charrasco chato, snubnose sculpin
  Orthopristis cantharinus (Jenyns, 1840) -- valid -- sheephead grunt, teniente
  Orthopristis chalceus (Günther, 1864) -- valid -- burrito corcovado, humpback grunt
  Orthopristis chrysoptera (Linnaeus, 1766) -- valid -- burro, corocoro armado, pigfish
  Orthopristis reddingi Jordan and Richardson in Jordan, 1895 -- valid -- bronzestriped grunt, burrito rayado
  Osmeridae -- valid -- capellanes, éperlans, smelts
  Osmerus mordax (Mitchill, 1814) -- valid -- éperlan arc-en-ciel, rainbow smelt
  Ostichthys trachypoma (Günther, 1859) -- valid -- bigeye soldierfish, candil de lo alto
  Ostraciidae -- valid -- boxfishes, cofferfishes, coffres, cowfishes, peces cofre, trunkfishes
  Ostracion meleagris Shaw in Shaw & Nodder, 1796 -- valid -- cofre moteado, pahu, spotted boxfish, Spotted Boxfish
  Otophidium chickcharney Böhlke and Robins, 1959 -- valid -- congriperla fantasma, ghost cusk-eel
  Otophidium dormitator Böhlke and Robins, 1959 -- valid -- sleeper cusk-eel
  Otophidium indefatigabile Jordan and Bollman, 1890 -- valid -- congriperla cabezona, Panamic cusk-eel
  Otophidium omostigma (Jordan and Gilbert, 1882) -- valid -- congriperla lunareja, polka-dot cusk-eel
  Oxycirrhites typus Bleeker, 1857 -- valid -- halcón narigón, longnose hawkfish
  Oxyjulis californica (Günther, 1861) -- valid -- senorita, señorita, señorita, señorita californiana
  Oxylebius pictus Gill, 1862 -- valid -- molva pinta, painted greenling
  Oxyporhamphus micropterus (Valenciennes in Cuvier and Valenciennes, 1847) -- valid -- smallwing flyingfish, volador alita
  Oxyurichthys stigmalophius (Mead and Böhlke, 1958) -- valid -- gobio aleta manchada, gobio manchado, spotfin goby
  Pagrus pagrus (Linnaeus, 1758) -- valid -- red porgy, sargo rojo
  Palatogobius paradoxus Gilbert, 1971 -- valid -- mauve goby
  Pallasina barbata (Steindachner, 1876) -- valid -- tubenose poacher
  Parabathymyrus oregoni Smith and Kanazawa, 1977 -- valid -- congrio nariz colgada, flapnose conger
  Parablennius marmoreus (Poey, 1876) -- valid -- blenio marmoreo, borracho marmóreo, seaweed blenny
  Paraclinus altivelis (Lockington, 1881) -- valid -- topgallant blenny, trambollito juanete
  Paraclinus beebei Hubbs, 1952 -- valid -- pink blenny, trambollito clavel
  Paraclinus cingulatus (Evermann and Marsh, 1899) -- valid -- coral blenny, sapito coral, trambollito coralino
  Paraclinus ditrichus Rosenblatt and Parr, 1969 -- valid -- leastfoot blenny, trambollito pocas patas
  Paraclinus fasciatus (Steindachner, 1876) -- valid -- banded blenny, sapito ocelado, trambollito ocelado
  Paraclinus grandicomis (Rosén, 1911) -- valid -- horned blenny, sapito tarrudo
  Paraclinus infrons Böhlke, 1960 -- valid -- bald blenny, trambollito pelón
  Paraclinus integripinnis (Smith, 1880) -- valid -- reef finspot, trambollito de arrecife
  Paraclinus magdalenae Rosenblatt and Parr, 1969 -- valid -- Magdalena blenny, trambollito de Magdalena
  Paraclinus marmoratus (Steindachner, 1876) -- valid -- marbled blenny, sapito punteado
  Paraclinus mexicanus (Gilbert, 1904) -- valid -- Mexican blenny, trambollito mexicano
  Paraclinus naeorhegmis Böhlke, 1960 -- valid -- surf blenny, surf blenny, trambollito de la resaca
  Paraclinus nigripinnis (Steindachner, 1867) -- valid -- blackfin blenny, sapito aletinegro, trambollito aletinegra
  Paraclinus sini Hubbs, 1952 -- valid -- flapscale blenny, trambollito frondoso
  Paraclinus stephensi Rosenblatt and Parr, 1969 -- valid -- professor blenny, trambollito del maestro
  Paraclinus tanygnathus Rosenblatt and Parr, 1969 -- valid -- longjaw blenny, trambollito adornado
  Paraclinus walkeri Hubbs, 1952 -- valid -- San Quintin blenny, trambollito de San Quintín
  Paraconger californiensis Kanazawa, 1961 -- valid -- congrio anteojos, ringeye conger
  Paraconger caudilimbatus (Poey, 1867) -- valid -- congrio, congrio cola de bordes, margintail conger
  Paraconger similis (Wade, 1946) -- valid -- congrio colicorta, shorttail conger
  Paradiplogrammus bairdi (Jordan in Eigenmann and Eigenmann, 1888) -- valid -- dragoncillo coralino, lancer dragonet
  Parahollardia lineata (Longley, 1935) -- valid -- cochi rombo, Jambeau, jambeau
  Paralabrax auroguttatus Walford, 1936 -- valid -- cabrilla extranjera, goldspotted sand bass
  Paralabrax clathratus (Girard, 1854) -- valid -- cabrilla sargacera, kelp bass
  Paralabrax loro Walford, 1936 -- valid -- cabrilla cachete amarillo, parrot sand bass
  Paralabrax maculatofasciatus (Steindachner, 1868) -- valid -- cabrilla de roca, spotted sand bass
  Paralabrax nebulifer (Girard, 1854) -- valid -- barred sand bass, cabrilla verde de arena
  Paralepididae -- valid -- barracudinas, barracudinas, lussions
  Paraletharchus opercularis (Myers and Wade, 1941) -- valid -- pouch snake eel, tieso bolsa
  Paraletharchus pacificus (Osburn and Nichols, 1916) -- valid -- Pacific sailfin eel, tieso vela del Pacífico
  Paralichthyidae -- valid -- flétans de sable, lefteye flounders, lenguados areneros, sand flounders
  Paralichthys aestuarius Gilbert & Scofield, 1898 -- valid -- Cortez halibut, Cortez Halibut, lenguado de Cortés
  Paralichthys albigutta Jordan & Gilbert, 1882 -- valid -- Gulf flounder, Gulf Flounder, lenguado panzablanca
  Paralichthys californicus (Ayres, 1859) -- valid -- California halibut, California Halibut, lenguado californiano
  Paralichthys dentatus (Linnaeus, 1766) -- valid -- cardeau d'été, fluke, summer flounder, Summer Flounder
  Paralichthys lethostigma Jordan & Gilbert in Jordan & Meek, 1884 -- valid -- lenguado limpio, Southern Flounder, southern flounder
  Paralichthys oblongus (Mitchill, 1815) -- valid -- cardeau à quatre ocelles, Fourspot Flounder, fourspot flounder
  Paralichthys squamilentus Jordan & Gilbert, 1882 -- valid -- broad flounder, Broad Flounder, lenguado huarachón
  Paralichthys woolmani Jordan & Williams in Gilbert, 1897 -- valid -- dappled flounder, Dappled Flounder, lenguado huarache
  Paraliparis calidus Cohen, 1968 -- valid -- limace ardente, lowfin snailfish
  Paraliparis deani Burke, 1912 -- valid -- prickly snailfish
  Paralonchurus goodei Gilbert in Jordan and Evermann, 1898 -- valid -- angel croaker, corvalo, corvalo, corvineta ángel
  Paranthias colonus (Valenciennes, 1846) -- valid -- Pacific creole-fish, Pacific creolefish, sandía
  Paranthias furcifer (Valenciennes in Cuvier and Valenciennes, 1828) -- valid -- Atlantic creolefish, Creole-fish, rabirrubia de lo alto, rabirrubia del Golfo
  Parapsettus panamensis (Steindachner, 1875) -- valid -- Panama spadefish, Panama Spadefish, zapatero
  Parasudis truculenta (Goode and Bean, 1896) -- valid -- longnose greeneye, ojiverde espátula, ojiverde truculento
  Pareques acuminatus (Bloch and Schneider, 1801) -- valid -- high-hat, payasito largo, vaqueta rayada
  Pareques fuscovittatus (Kendall and Radcliffe, 1912) -- valid -- festive drum, payasito lindo
  Pareques iwamotoi Miller and Woods, 1988 -- valid -- blackbar drum, payasito rayado
  Pareques umbrosus (Jordan and Eigenmann, 1889) -- valid -- cubbyu, payasito prieto
  Pareques viola (Gilbert in Jordan and Evermann, 1898) -- valid -- payasito gungo, rock croaker
  Parexocoetus brachypterus (Richardson, 1846) -- valid -- sailfin flyingfish, volador aletón, volador velero
  Paricelinus hopliticus Eigenmann and Eigenmann, 1889 -- valid -- thornback sculpin
  Parmaturus xaniurus (Gilbert, 1892) -- valid -- filetail cat shark, pejegato lima
  Parophidion lagochila Böhlke and Robins, 1959 -- invalid -- congriperla labio leporino, hairlip cusk, harelip cusk-eel
  Parophidion schmidti (Woods and Kanazawa, 1951) -- valid -- congriperla parda, dusky cusk-eel
  Parophrys vetulus Girard, 1854 -- valid -- carlottin anglais, English sole, English Sole, platija limón
  Parrella ginsburgi Wade, 1946 -- valid -- darkblotch goby, gobio lunarejo
  Parrella lucretiae (Eigenmann and Eigenmann, 1888) -- valid -- gobio maculado, maculated goby
  Parrella maxillaris Ginsburg, 1938 -- valid -- doublestripe goby, gobio veteado
  Pempheridae -- valid -- barrenderos, poissons-balayeurs, sweepers
  Pempheris schomburgkii Müller and Troschel in Schomburgk, 1848 -- valid -- barrendero transparente, glassy sweeper, pemferis bandeado
  Penetopteryx nanus (Rosén, 1911) -- valid -- finless pipefish, finless pipefish, lost pipefish, pez pipa gusano, worm pipefish
  Pentacerotidae -- valid -- armorheads, boarfishes, espartanos, têtes casquées
  Peprilus burti Fowler, 1944 -- valid -- Gulf butterfish, palometa del Golfo
  Peprilus medius (Peters, 1869) -- valid -- Pacific harvestfish, palometa, palometa
  Peprilus ovatus Horn, 1970 -- valid -- Cortez butterfish, palometa de Cortés
  Peprilus paru (Linnaeus, 1758) -- valid -- harvestfish, northern harvestfish, northern harvestfish, palometa moneda, palometa pámpano
  Peprilus simillimus (Ayres, 1860) -- valid -- Pacific pompano, palometa plateada
  Peprilus snyderi Gilbert and Starks, 1904 -- valid -- palometa salema, salema butterfish
  Peprilus triacanthus (Peck, 1804) -- valid -- butterfish, palometa estrecha, stromatée à fossettes
  Perca flavescens (Mitchill, 1814) -- valid -- perchaude, yellow perch
  Percidae -- valid -- percas, perches, perches, perches et dards, true perches
  Percina antesella Williams and Etnier, 1977 -- valid -- amber darter
  Percina aurantiaca (Cope, 1868) -- valid -- tangerine darter
  Percina aurolineata Suttkus and Ramsey, 1967 -- valid -- goldline darter
  Percina aurora Suttkus and Thompson in Suttkus, Thompson and Bart, 1994 -- valid -- Pearl Darter
  Percina austroperca Thompson, 1995 -- valid -- Southern Logperch
  Percina brevicauda Suttkus and Bart in Suttkus, Thompson and Bart, 1994 -- valid -- coal darter
  Percina burtoni Fowler, 1945 -- valid -- blotchside logperch
  Percina caprodes (Rafinesque, 1818) -- valid -- fouille-roche zébré, logperch
  Percina carbonaria (Baird and Girard, 1853) -- valid -- Texas logperch
  Percina copelandi (Jordan, 1877) -- valid -- channel darter, fouille-roche gris
  Percina crassa (Jordan and Brayton, 1878) -- valid -- Piedmont darter
  Percina cymatotaenia (Gilbert and Meek in Gilbert, 1887) -- valid -- bluestripe darter
  Percina evides (Jordan and Copeland in Jordan, 1877) -- valid -- gilt darter
  Percina gymnocephala Beckham, 1980 -- valid -- Appalachia darter
  Percina jenkinsi Thompson, 1985 -- valid -- Conasauga logperch
  Percina kathae Thompson, 1997 -- valid -- Mobile logperch
  Percina lenticula Richards and Knapp, 1964 -- valid -- freckled darter
  Percina macrocephala (Cope, 1867) -- valid -- longhead darter
  Percina macrolepida Stevenson, 1971 -- valid -- bigscale logperch, perca escamona
  Percina maculata (Girard, 1859) -- valid -- blackside darter
  Percina nasuta (Bailey, 1941) -- valid -- longnose darter
  Percina nigrofasciata (Agassiz, 1854) -- valid -- blackbanded darter
  Percina notogramma (Raney and Hubbs, 1948) -- valid -- stripeback darter
  Percina oxyrhynchus (Hubbs and Raney, 1939) -- valid -- sharpnose darter
  Percina palmaris (Bailey, 1940) -- valid -- bronze darter
  Percina pantherina (Moore and Reeves, 1955) -- valid -- leopard darter
  Percina peltata (Stauffer in Cope, 1864) -- valid -- shield darter
  Percina phoxocephala (Nelson, 1876) -- valid -- slenderhead darter
  Percina rex (Jordan and Evermann in Jordan, 1889) -- valid -- Roanoke logperch
  Percina roanoka (Jordan and Jenkins in Jordan, 1889) -- valid -- Roanoke darter
  Percina sciera (Swain, 1883) -- valid -- dusky darter
  Percina shumardi (Girard, 1859) -- valid -- river darter
  Percina squamata (Gilbert and Swain in Gilbert, 1887) -- valid -- olive darter
  Percina stictogaster Burr and Page, 1993 -- valid -- frecklebelly darter
  Percina suttkusi Thompson, 1997 -- valid -- Gulf logperch
  Percina tanasi Etnier, 1976 -- valid -- snail darter
  Percina uranidea (Jordan and Gilbert in Gilbert, 1887) -- valid -- stargazing darter
  Percina vigil (Hay, 1882) -- valid -- saddleback darter
  Percis japonica (Pallas, 1769) -- valid -- dragon poacher
  Percophidae -- valid -- duckbills, flatheads, flatnoses, picos de pato, platêtes
  Percopsidae Agassiz, 1850 -- valid -- omiscos, percas falsas, trout perches, trout-perches
  Percopsiformes -- valid -- percopsiforms, trout-perches
  Percopsis omiscomaycus (Walbaum, 1792) -- valid -- omisco, trout-perch
  Percopsis transmontana (Eigenmann and Eigenmann in Eigenmann, 1892) -- valid -- sand roller
  Perissias taeniopterus (Gilbert, 1890) -- valid -- flag flounder, Flag Flounder, lenguado bandera
  Peristediidae -- invalid -- armored searobins, malarmats, vaquitas blindadas
  Peristedion gracile Goode and Bean, 1896 -- valid -- espátula esbelta, slender searobin, vaquita blindada flaca
  Peristedion greyae Miller, 1967 -- valid -- alligator searobin, prickly searobin
  Peristedion miniatum Goode, 1880 -- valid -- armored searobin
  Peristedion paucibarbiger Castro-Aguirre and Garcia-Domínguez, 1984 -- valid -- Cortez searobin, vaquita blindada de Cortés
  Peristedion thompsoni Fowler, 1952 -- valid -- rimspine searobin
  Petenia splendida Günther, 1862 -- valid -- giant cichlid, tenguayaca
  Petromyzon marinus Linnaeus, 1758 -- valid -- lake lamprey, lamproie marine, sea lamprey
  Petromyzontidae -- valid -- lampreas, lampreys, lamproies
  Petrotyx hopkinsi Heller and Snodgrass, 1903 -- valid -- brótula hocico terciopelado, velvetnose brotula
  Petrotyx sanguineus (Meek and Hildebrand, 1928) -- valid -- brótula aletiroja, redfin brotula
  Phaenomonas pinnata Myers and Wade, 1941 -- valid -- elastic eel, tieso elástico
  Phaeoptyx conklini (Silvester, 1915) -- valid -- cardenal pecoso, freckled cardinalfish
  Phaeoptyx pigmentaria (Poey, 1860) -- valid -- cardenal pigmentado, cardenal prieto, dusky cardinalfish
  Phaeoptyx xenus (Böhlke and Randall, 1968) -- valid -- cardenal esponjero, cardenal violáeo, sponge cardinalfish
  Phallichthys fairweatheri Rosen and Bailey, 1959 -- valid -- picotee livebearer, topo
  Phallocottus obtusus Schultz, 1938 -- valid -- spineless sculpin
  Phanerodon atripes (Jordan and Gilbert, 1880) -- valid -- mojarra picuda, sharpnose seaperch
  Phanerodon furcatus Girard, 1854 -- valid -- mojarra lomo rayado, white seaperch
  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
  Pherallodiscus funebris (Gilbert, 1890) -- valid -- chupapiedra discofrágil norteña, northern fraildisc clingfish
  Pherallodiscus varius Briggs, 1955 -- valid -- chupapiedra discofrágil sureña, southern fraildisc clingfish
  Pholidae Gill, 1893 -- valid -- espinosos de marea, gunnels, sigouines
  Pholis clemensi Rosenblatt, 1964 -- valid -- longfin gunnel
  Pholis fasciata (Bloch and Schneider, 1801) -- valid -- banded gunnel
  Pholis gunnellus (Linnaeus, 1758) -- valid -- rock gunnel, sigouine de roche
  Pholis laeta (Cope, 1873) -- valid -- crescent gunnel
  Pholis ornata (Girard, 1854) -- valid -- saddleback gunnel
  Pholis schultzi Schultz, 1931 -- valid -- red gunnel
  Phosichthyidae -- valid -- lightfishes, lighthousefishes, peces luminosos, poissons étoilés
  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 saylori Skelton, 2001 -- invalid -- laurel dace
  Phoxinus tennesseensis Starnes and Jenkins, 1988 -- invalid -- Tennessee dace
  Phthanophaneron harveyi (Rosenblatt and Montgomery, 1976) -- valid -- ojo de linterna panámica, Panamic flashlightfish
  Phtheirichthys lineatus (Menzies, 1791) -- valid -- pez pega lineado, rémora delgada, slender suckerfish
  Phycidae -- invalid -- merluzas barbonas, phycid hakes, phycidés
  Phycis chesteri Goode and Bean, 1878 -- valid -- longfin hake
  Physiculus fulvus Bean, 1884 -- valid -- carbonero metálico, hakeling, metallic codling
  Physiculus nematopus Gilbert, 1890 -- valid -- carbonero de fango, charcoal codling
  Physiculus rastrelliger Gilbert, 1890 -- valid -- carbonero negro, hundred-fathom codling
  Physiculus talarae Hildebrand and Barton, 1949 -- valid -- carbonero peruano, Peruvian codling
  Phytichthys chirus (Jordan and Gilbert, 1880) -- valid -- ribbon prickleback
  Pimelodidae -- valid -- flat-hosed catfishes, juiles, long-whiskered catfishes, longwhiskered catfishes, poissons-chats à longues moustaches
  Pimephales notatus (Rafinesque, 1820) -- valid -- bluntnose minnow, ventre-pourri
  Pimephales promelas Rafinesque, 1820 -- valid -- carpita cabezona, fathead minnow, tête-de-boule
  Pimephales tenellus (Girard, 1856) -- valid -- slim minnow
  Pimephales vigilax (Baird and Girard, 1853) -- valid -- bullhead minnow, carpita cabeza de toro
  Pisodonophis daspilotus Gilbert in Jordan and Evermann, 1898 -- valid -- blunt-toothed snake eel, tieso dientes romos
  Plagiogrammus hopkinsii Bean, 1894 -- valid -- crisscross prickleback
  Plagiotremus azaleus (Jordan and Bollman, 1890) -- valid -- diente sable, sabertooth blenny, sabretooth blenny
  Plagopterus argentissimus Cope, 1874 -- valid -- woundfin
  Platichthys stellatus (Pallas, 1787) -- valid -- flet étoilé, starry flounder, Starry Flounder
  Platybelone argalus (Lesueur, 1821) -- valid -- agujón aquillado, agujón de quilla, keeltail needlefish
  Platydoras armatulus (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- southern striped Raphael
  Platygillellus rubrocinctus (Longley, 1934) -- valid -- mirón barreado, saddle stargazer
  Platygobio gracilis (Richardson, 1836) -- valid -- flathead chub
  Platyrhinoidis triseriata (Jordan and Gilbert, 1880) -- valid -- guitarra espinuda, thornback
  Plectobranchus evides Gilbert, 1890 -- valid -- bluebarred prickleback
  Plectranthias garrupellus Robins and Starck, 1961 -- valid -- apricot bass
  Plectrypops retrospinis (Guichenot, 1853) -- valid -- candil cardenal, cardinal soldierfish, goggle-eyed squirrelfish
  Pleurogrammus monopterygius (Pallas, 1810) -- valid -- Atka mackerel
  Pleuronectes glacialis Pallas, 1776 -- invalid -- Arctic flounder, Arctic Flounder, plie arctique
  Pleuronectes putnami (Gill, 1864) -- invalid -- eelback, plie lisse, Smooth Flounder, smooth flounder, smoothback flounder
  Pleuronectes quadrituberculatus Pallas, 1814 -- valid -- Alaska plaice, Alaska Plaice
  Pleuronectidae -- valid -- dabs, halibuts, platijas, plies, righteye flounders, righteyed flounders
  Pleuronichthys coenosus Girard, 1854 -- valid -- C-O sole, C-O Sole, platija de fango, plie vaseuse
  Pleuronichthys decurrens Jordan & Gilbert, 1881 -- valid -- curlfin sole, Curlfin Sole, platija aleta de rizo, plie à nageoires frisées
  Pleuronichthys guttulatus Girard, 1856 -- invalid -- diamond turbot, Diamond Turbot, platija diamante
  Pleuronichthys ocellatus Starks & Thompson, 1910 -- valid -- ocellated turbot, Ocellated Turbot, platija ocelada
  Pleuronichthys ritteri Starks & Morris, 1907 -- valid -- platija moteada, Spotted Turbot, spotted turbot
  Pleuronichthys verticalis Jordan & Gilbert, 1880 -- valid -- hornyhead turbot, Hornyhead Turbot, platija cornuda
  Pliosteostoma lutipinnis (Jordan and Gilbert, 1882) -- valid -- arenquilla aleta amarilla, yellowfin herring
  Poblana alchichica de Buen, 1945 -- valid -- Alchichica silverside, charal de Alchichica
  Poblana ferdebueni Solórzano and López, 1965 -- valid -- charal de Almoloya, Chignahuapan silverside
  Poblana letholepis Alvarez, 1950 -- valid -- charal de La Preciosa, La Preciosa silverside
  Poblana squamata Alvarez, 1950 -- valid -- charal de Quechulac, Quechulac silverside
  Podothecus accipenserinus (Tilesius, 1813) -- valid -- sturgeon poacher
  Podothecus veternus Jordan and Starks, 1895 -- valid -- veteran poacher
  Poecilia butleri Jordan, 1889 -- valid -- Pacific molly, topote del Pacífico
  Poecilia catemaconis Miller, 1975 -- valid -- bicolor molly, topote de Catemaco
  Poecilia chica Miller, 1975 -- valid -- dwarf molly, topote del Purificación
  Poecilia formosa (Girard, 1859) -- valid -- Amazon molly, topote amazona
  Poecilia latipinna (Lesueur, 1821) -- valid -- sailfin molly, topote velo negro
  Poecilia latipunctata Meek, 1904 -- valid -- Tamesi molly, topote del Tamesí
  Poecilia maylandi Meyer, 1983 -- valid -- Balsas molly, topote del Balsas
  Poecilia mexicana Steindachner, 1863 -- valid -- shortfin molly, topote del Atlántico
  Poecilia orri Fowler, 1943 -- valid -- mangrove molly, topote de manglar
  Poecilia petenensis Günther, 1866 -- valid -- Peten molly, topote lacandón
  Poecilia reticulata Peters, 1859 -- valid -- gupi, guppy, millions fish, rainbowfish
  Poecilia sphenops Valenciennes in Cuvier and Valenciennes, 1846 -- valid -- black molly, liberty mollly, liberty molly, Mexican molly, mollie, molly, pointed-mouth molly, topote mexicano
  Poecilia sulphuraria (Alvarez, 1948) -- valid -- sulphur molly, topote de Teapa
  Poecilia velifera (Regan, 1914) -- valid -- giant sailfin, giant sailfin, Mexican sailfin molly, mexican sailfin molly, topote aleta grande, Yucatan molly
  Poeciliidae Garman, 1895 -- valid -- livebearers, livebearing toothcarps, poecilies, poeciliids, topminnows, topotes y espadas
  Poeciliopsis baenschi Meyer, Radda, Riehl and Feichtinger, 1986 -- valid -- golden livebearer, guatopote dorado
  Poeciliopsis balsas Hubbs, 1926 -- valid -- Balsas livebearer, guatopote del Balsas
  Poeciliopsis catemaco Miller, 1975 -- valid -- Catemaco livebearer, guatopote blanco
  Poeciliopsis gracilis (Heckel, 1848) -- valid -- guatopote jarocho, porthole livebearer
  Poeciliopsis hnilickai Meyer and Vogel, 1981 -- valid -- guatopote de Ixtapa, upper Grijalva livebearer
  Poeciliopsis infans (Woolman, 1894) -- valid -- guatopote del Lerma, Lerma livebearer
  Poeciliopsis latidens (Garman, 1895) -- valid -- guatopote del Fuerte, lowland livebearer
  Poeciliopsis lucida Miller, 1960 -- valid -- clearfin livebearer, guatopote del Mocorito
  Poeciliopsis monacha Miller, 1960 -- valid -- guatopote del Mayo, headwater livebearer
  Poeciliopsis occidentalis (Baird and Girard, 1853) -- valid -- Gila topminnow, guatopote de Sonora
  Poeciliopsis presidionis (Jordan and Culver in Jordan, 1895) -- valid -- guatopote de Sinaloa, Sinaloa livebearer
  Poeciliopsis prolifica Miller, 1960 -- valid -- blackstripe livebearer, guatopote culiche
  Poeciliopsis scarlli Meyer, Riehl, Dawes and Dibble, 1985 -- valid -- guatopote michoacano, Michoacan livebearer
  Poeciliopsis turneri Miller, 1975 -- valid -- blackspotted livebearer, guatopote de La Huerta
  Poeciliopsis turrubarensis (Meek, 1912) -- valid -- barred livebearer, guatopote del Pacífico
  Poeciliopsis viriosa Miller, 1960 -- valid -- chubby livebearer, guatopote gordito
  Poecilopsetta beanii (Goode, 1881) -- valid -- deepwater dab, Deepwater Dab, lenguado ojón
  Poecilopsettidae -- valid -- bigeye flounders, lenguados ojones, plies à grands yeux
  Pogonias cromis (Linnaeus, 1766) -- valid -- black drum, corvina negra, tambor negro
  Pogonichthys ciscoides Hopkirk, 1974 -- valid -- Clear Lake splittail
  Pogonichthys macrolepidotus (Ayres, 1854) -- valid -- Sacramento splittail, splittail
  Pollachius virens (Linnaeus, 1758) -- valid -- carbonero, coalfish, goberge, lieu noir, pollock, saithe
  Pollichthys mauli (Poll, 1953) -- valid -- luciérnaga amarilla, stareye lightfish
  Polydactylus approximans (Lay and Bennett, 1839) -- valid -- barbudo seis barbas, blue bobo
  Polydactylus octonemus (Girard, 1858) -- valid -- Atlantic threadfin, barbudo ocho barbas
  Polydactylus oligodon (Günther, 1860) -- valid -- barbudo siete barbas, littlescale threadfin
  Polydactylus opercularis (Gill, 1863) -- valid -- barbudo nueve barbas, yellow bobo
  Polydactylus virginicus (Linnaeus, 1758) -- valid -- barbu, barbudo, barbudo barbú
  Polyipnus clarus Harold, 1994 -- valid -- slope hatchetfish
  Polylepion cruentum Gomon, 1977 -- valid -- bleeding wrasse, vieja sangradora
  Polymixia lowei Günther, 1859 -- valid -- barbudo, barbudo de lo alto, beardfish, cola de maguey
  Polymixiidae -- valid -- barbudos, beardfishes, colas de maguey, poissons à barbe
  Polynemidae -- valid -- barbudos, capitaines, threadfins
  Polyodon spathula (Walbaum, 1792) -- valid -- American paddlefish, paddlefish
  Polyodontidae -- valid -- espátulas, paddlefishes, spatules
  Polyprion americanus (Bloch and Schneider, 1801) -- valid -- wreckfish
  Polyprionidae -- valid -- náufragos, polyprions, wreckfishes
  Pomacanthidae -- valid -- ángeles, angelfishes, demoiselles
  Pomacanthus arcuatus (Linnaeus, 1758) -- valid -- chivirica gris, gallineta café, gray angelfish
  Pomacanthus paru (Bloch, 1787) -- valid -- chivirica francesa, French angelfish, gallineta negra
  Pomacanthus zonipectus (Gill, 1862) -- valid -- ángel de Cortés, Cortez angelfish
  Pomacentridae -- valid -- castañetas y jaquetas, damselfishes, demoiselles, sergents
  Pomadasys bayanus Jordan and Evermann, 1898 -- valid -- purplemouth grunt, roncacho boquimorada
  Pomadasys branickii (Steindachner, 1879) -- valid -- roncacho arenero, sand grunt
  Pomadasys crocro (Cuvier in Cuvier and Valenciennes, 1830) -- valid -- burro grunt, corocoro crocro, ticopa
  Pomadasys macracanthus (Günther, 1864) -- valid -- longspine grunt, roncacho gordo
  Pomadasys panamensis (Steindachner, 1876) -- valid -- Panamic grunt, roncacho mapache
  Pomatomidae -- valid -- anjovas, bluefishes, tassergals
  Pomatomus saltatrix (Linnaeus, 1766) -- valid -- anjova, bluefish
  Pomoxis annularis Rafinesque, 1818 -- valid -- white crappie
  Pomoxis nigromaculatus (Lesueur in Cuvier and Valenciennes, 1829) -- valid -- black crappie, marigane noire, mojarra negra
  Pontinus castor Poey, 1860 -- valid -- longsnout scorpionfish, rascacio de lo alto
  Pontinus furcirhinus Garman, 1899 -- valid -- lapón rojo, red scorpionfish
  Pontinus longispinis Goode and Bean, 1896 -- valid -- lapón mariposa, longspine scorpionfish
  Pontinus nematophthalmus (Günther, 1860) -- valid -- lapón aleta baja, spinythroat scorpionfish
  Pontinus rathbuni Goode and Bean, 1896 -- valid -- highfin scorpionfish
  Pontinus sierra (Gilbert, 1890) -- valid -- lapón manchado, speckled scorpionfish
  Pontinus vaughani Barnhart and Hubbs, 1946 -- valid -- lapón lomo manchado, spotback scorpionfish
  Porichthys analis Hubbs and Schultz, 1939 -- valid -- darkedge midshipman, sapo de luto
  Porichthys ephippiatus Walker and Rosenblatt, 1988 -- valid -- saddle midshipman, sapo ensillado
  Porichthys greenei Gilbert and Starks, 1904 -- valid -- sapo cabeza corta, shorthead midshipman
  Porichthys margaritatus (Richardson, 1844) -- valid -- pearlspot midshipman, sapo luminoso
  Porichthys mimeticus Walker and Rosenblatt, 1988 -- valid -- mimetic midshipman, sapo mimético
  Porichthys myriaster Hubbs and Schultz, 1939 -- valid -- sapo aleta pintada, specklefin midshipman
  Porichthys notatus Girard, 1854 -- valid -- plainfin midshipman, sapo aleta lucia
  Porichthys plectrodon Jordan and Gilbert, 1882 -- valid -- Atlantic midshipman, doradilla, sapo narinero
  Poroclinus rothrocki Bean, 1890 -- valid -- whitebarred prickleback
  Porocottus mednius (Bean in Jordan and Evermann, 1898) -- valid -- Aleutian fringed sculpin
  Potamarius nelsoni (Evermann and Goldsborough, 1902) -- valid -- bagre lacandón, Lacandon sea catfish
  Priacanthidae -- valid -- beauclaires, bigeyes, catalufas, catalufas
  Priacanthus alalaua Jordan and Evermann, 1903 -- valid -- catalufa alalahua, Hawaiian bigeye
  Priacanthus arenatus Cuvier in Cuvier and Valenciennes, 1829 -- valid -- bigeye, catalufa ojón, catalufa toro
  Priapella bonita (Meek, 1904) -- valid -- graceful priapella, guayacón bonito
  Priapella compressa Alvarez, 1948 -- valid -- guayacón de Palenque, Palenque priapella
  Priapella intermedia Alvarez and Carranza, 1952 -- valid -- guayacón de Chimalapa, isthmian priapella
  Priapella olmecae Meyer and Espinosa Pérez, 1990 -- valid -- guayacón olmeca, Olmec priapella
  Prietella lundbergi Walsh and Gilbert, 1995 -- valid -- bagre ciego duende, phantom blindcat
  Prietella phreatophila Carranza, 1954 -- valid -- bagre ciego de Múzquiz, Mexican blind catfish, Mexican blindcat
  Priolepis hipoliti (Metzelaar, 1922) -- valid -- gobio oxidado, rusty goby
  Prionace glauca (Linnaeus, 1758) -- valid -- blue shark, requin bleu, tiburón azul
  Prionotus alatus Goode and Bean, 1883 -- valid -- rubio espinoso, spiny searobin
  Prionotus albirostris Jordan and Bollman, 1890 -- valid -- vaca cariblanca, whitesnout searobin
  Prionotus birostratus Richardson, 1844 -- valid -- twobeak searobin, vaca dospicos
  Prionotus carolinus (Linnaeus, 1771) -- valid -- common searobin, northern searobin
  Prionotus evolans (Linnaeus, 1766) -- valid -- striped searobin
  Prionotus horrens Richardson, 1844 -- valid -- bristly searobin, vaca polla
  Prionotus longispinosus Teague, 1951 -- valid -- bigeye searobin, rubio ojón
  Prionotus martis Ginsburg, 1950 -- valid -- barred searobin, rubio de barras
  Prionotus ophryas Jordan and Swain, 1885 -- valid -- bandtail searobin, rubio cola bandeada
  Prionotus paralatus Ginsburg, 1950 -- valid -- Mexican searobin, rubio mexicano
  Prionotus punctatus (Bloch, 1793) -- valid -- bluewing searobin, espátula gallina, rubio azul, spotted searobin
  Prionotus roseus Jordan and Evermann, 1887 -- valid -- bluespotted searobin, rubio manchas azules
  Prionotus rubio Jordan, 1886 -- valid -- blackfin searobin, blackwing searobin, espátula aletinegra, rubio aletinegra
  Prionotus ruscarius Gilbert and Starks, 1904 -- valid -- rough searobin, vaca rasposa
  Prionotus scitulus Jordan and Gilbert, 1882 -- valid -- leopard searobin, rubio leopardo
  Prionotus stearnsi Jordan and Swain, 1885 -- valid -- rubio pequeño, shortwing searobin
  Prionotus stephanophrys Lockington, 1881 -- valid -- lumptail searobin, vaca voladora
  Prionotus tribulus Cuvier in Cuvier and Valenciennes, 1829 -- valid -- bighead searobin, rubio cabezón
  Prionurus laticlavius (Valenciennes, 1846) -- valid -- cochinito barbero, Razor Surgeonfish, razor surgeonfish
  Prionurus punctatus Gill, 1862 -- invalid -- cochinito punteado, yellowtail surgeon, yellowtail surgeonfish, Yellowtail Surgeonfish
  Pristidae Bonaparte, 1838 -- valid -- peces sierra, poissons-scies, sawfishes
  Pristigasteridae -- valid -- ilishas, longfin herrings, pellonas, pristigastéridés, pristigasterids, sardinas machete, sawbelly herrings
  Pristigenys alta (Gill, 1862) -- valid -- catalufa de lo alto, short bigeye
  Pristigenys serrula (Gilbert, 1891) -- valid -- catalufa semáforo, popeye catalufa
  Pristipomoides aquilonaris (Goode and Bean, 1896) -- valid -- huachinango navaja, wenchman
  Pristipomoides freemani Anderson, 1966 -- valid -- slender wenchman, yelloweye wenchman
  Pristipomoides macrophthalmus (Müller and Troschel in Schomburgk, 1848) -- valid -- cardinal snapper, pargo panchito, voraz
  Pristis pectinata Latham, 1794 -- valid -- pez sierra, pez sierra peine, smalltooth sawfish, wide sawfish
  Pristis pristis (Linnaeus, 1758) -- valid -- common sawfish, largetooth sawfish, pez sierra común, sawfish
  Profundulidae Hoedeman and Bronner, 1951 -- valid -- escamudos, Middle American killifishes, profundulidés
  Profundulus candalarius Hubbs, 1924 -- valid -- escamudo de Comitán, headwater killifish
  Profundulus hildebrandi Miller, 1950 -- valid -- Chiapas killifish, escamudo de San Cristóbal
  Profundulus labialis (Günther, 1866) -- valid -- escamudo bocón, largelip killifish
  Profundulus punctatus (Günther, 1866) -- valid -- brownspotted killifish, escamudo pinto
  Prognathodes aculeatus (Poey, 1860) -- valid -- longsnout butterflyfish, mariposa narigona, parche narizón
  Prognathodes aya (Jordan, 1886) -- valid -- bank butterflyfish, mariposa de banco
  Prognathodes falcifer (Hubbs and Rechnitzer, 1958) -- valid -- mariposa guadaña, scythe butterflyfish
  Prognathodes guyanensis (Durand, 1960) -- valid -- Guyana butterflyfish
  Prognichthys occidentalis Parin, 1999 -- valid -- bluntnose flyingfish, volador chato, volador ñato
  Prognichthys sealei Abe, 1955 -- valid -- sailor flyingfish, volador marinero
  Prognichthys tringa Breder, 1928 -- valid -- Panamic flyingfish, volador panámico
  Pronotogrammus eos Gilbert, 1890 -- valid -- bigeye bass, serrano ojón
  Pronotogrammus martinicensis (Guichenot, 1868) -- valid -- roughtongue bass, serrano lengua rasposa
  Pronotogrammus multifasciatus Gill, 1863 -- valid -- serrano baga, threadfin bass
  Prosopium abyssicola (Snyder, 1919) -- valid -- Bear Lake whitefish
  Prosopium coulterii (Eigenmann and Eigenmann, 1892) -- valid -- pygmy whitefish
  Prosopium cylindraceum (Pennant, 1784) -- valid -- ménomini rond, round whitefish
  Prosopium gemmifer (Snyder, 1919) -- valid -- Bonneville cisco
  Prosopium spilonotus (Snyder, 1919) -- valid -- Bonneville whitefish
  Prosopium williamsoni (Girard, 1856) -- valid -- mountain whitefish
  Proterorhinus marmoratus (Pallas, 1814) -- valid -- tubenose goby
  Protomyctophum crockeri (Bolin, 1939) -- valid -- California flashlightfish, flashlightfish, linternilla luciérnaga
  Psenes cyanophrys Valenciennes in Cuvier and Valenciennes, 1833 -- valid -- derivante rayado, freckled driftfish, pastorcillo amarillento
  Psenes maculatus Lütken, 1880 -- valid -- silver driftfish
  Psenes pellucidus Lütken, 1880 -- valid -- bluefin driftfish, derivante aleta azul
  Psenes sio Haedrich, 1970 -- valid -- derivante dos espinas, twospine driftfish
  Psettichthys melanostictus Girard, 1854 -- valid -- sand sole, Sand Sole, sole de sable
  Pseudobalistes naufragium (Jordan & Starks in Jordan, 1895) -- valid -- blunthead triggerfish, Blunthead Triggerfish, cochito bota
  Pseudocarcharias kamoharai (Matsubara, 1936) -- valid -- crocodile shark, tiburón cocodrilo
  Pseudocarchariidae Compagno, 1973 -- valid -- crocodile sharks, requins-crocodiles, tiburones cocodrilo
  Pseudogramma gregoryi (Breder, 1927) -- valid -- jaboncillo arrecifal, reef bass
  Pseudogramma thaumasium (Gilbert in Jordan and Evermann, 1900) -- valid -- jaboncillo ocelado, Pacific reef bass
  Pseudojuloides inornatus (Gilbert, 1890) -- valid -- Cape wrasse, señorita del Cabo
  Pseudomyrophis fugesae McCosker, Böhlke and Böhlke, 1989 -- valid -- diminutive worm eel
  Pseudomyrophis micropinna Wade, 1946 -- valid -- plain worm eel, tieso enano
  Pseudopentaceros wheeleri Hardy, 1983 -- valid -- longfin armorhead, North Pacific armorhead
  Pseudophallus starksii (Jordan and Culver in Jordan, 1895) -- valid -- pez pipa de río, yellowbelly pipefish
  Pseudopleuronectes americanus (Walbaum, 1792) -- valid -- blackback, Georges Bank flounder, lemon sole, plie rouge, rough flounder, winter flounder, Winter Flounder
  Pseudotriakidae Gill, 1893 -- valid -- false cat sharks, musolones, requins à longue dorsale
  Pseudotriakis microdon Brito Capello, 1868 -- valid -- falsa gata, false cat shark
  Pseudupeneus grandisquamis (Gill, 1863) -- valid -- bigscale goatfish, chivo, chivo escamudo
  Pseudupeneus maculatus (Bloch, 1793) -- valid -- chivo manchado, salmonete colorado, spotted goatfish
  Psilotris alepis Ginsburg, 1953 -- valid -- gobio de poceta, gobio sin escamas, scaleless goby, scaleless goby
  Psilotris batrachodes Böhlke, 1963 -- valid -- gobio de sapo, gobio sapito, toadfish goby, toadfish goby
  Psilotris celsus Böhlke, 1963 -- valid -- gobio espina alta, highspine goby, highspine goby
  Psychrolutes paradoxus Günther, 1861 -- valid -- tadpole sculpin
  Psychrolutes sigalutes (Jordan and Starks, 1895) -- invalid -- soft sculpin
  Psychrolutidae -- valid -- cabezas gordas, chabots veloutés, fathead sculpins, flathead sculpins
  Pteraclis aesticola (Jordan and Snyder, 1901) -- valid -- abanico del Pacífico, Pacific fanfish
  Ptereleotris calliura (Jordan and Gilbert, 1882) -- valid -- blue dartfish, gobio dardo azul
  Ptereleotris carinata Bussing, 2001 -- valid -- gobio dardo panámico, Panamic dartfish
  Ptereleotris helenae (Randall, 1968) -- valid -- gobio azul, hovering dartfish, hovering goby
  Pterois volitans (Linnaeus, 1758) -- valid -- firefish, lionfish, ornate butterfly-cod, red firefish, red lionfish, turkeyfish, zebrafish
  Pteromylaeus asperrimus (Gilbert in Jordan and Evermann, 1898) -- valid -- águila cueruda, rough eagle ray
  Pteronotropis euryzonus (Suttkus, 1955) -- valid -- broadstripe shiner
  Pteronotropis grandipinnis (Jordan, 1877) -- valid -- Apalachee shiner
  Pteronotropis hubbsi (Bailey and Robison, 1978) -- valid -- bluehead shiner
  Pteronotropis hypselopterus (Günther, 1868) -- valid -- sailfin shiner
  Pteronotropis merlini (Suttkus and Mettee, 2001) -- valid -- orangetail shiner
  Pteronotropis signipinnis (Bailey and Suttkus, 1952) -- valid -- flagfin shiner
  Pteronotropis welaka (Evermann and Kendall, 1898) -- valid -- bluenose shiner
  Pteroplatytrygon violacea (Bonaparte, 1832) -- valid -- pelagic stingray, raya látigo obispo
  Pterycombus brama Fries, 1837 -- valid -- Atlantic fanfish, silver sea bream
  Pterygoplichthys anisitsi Eigenmann and Kennedy, 1903 -- valid -- southern sailfin catfish
  Pterygoplichthys disjunctivus (Weber, 1991) -- valid -- vermiculated sailfin catfish
  Pterygoplichthys multiradiatus (Hancock, 1828) -- valid -- butterfly pleco, Orinoco sailfin catfish, plecóstoma del Orinoco, sailfin catfish
  Pterygoplichthys pardalis (Castelnau, 1855) -- valid -- Amazon sailfin catfish
  Ptilichthyidae Jordan and Gilbert, 1883 -- valid -- fouette-queues, peces pua, quillfishes
  Ptilichthys goodei Bean, 1881 -- valid -- quillfish
  Ptychocheilus grandis (Ayres, 1854) -- valid -- Sacramento pikeminnow, Sacramento squawfish
  Ptychocheilus lucius Girard, 1856 -- valid -- carpa gigante del Colorado, Colorado pikeminnow, Colorado squawfish
  Ptychocheilus oregonensis (Richardson, 1836) -- valid -- northern pikeminnow, northern squawfish
  Ptychocheilus umpquae Snyder, 1908 -- valid -- Umpqua pikeminnow, Umpqua squawfish
  Pungitius pungitius (Linnaeus, 1758) -- valid -- épinoche à neuf épines, ninespine stickleback, tenspined stickleback
  Pycnomma semisquamatum Rutter, 1904 -- valid -- gobio furtivo, secret goby
  Pylodictis olivaris (Rafinesque, 1818) -- valid -- bagre piltonte, flathead catfish
  Pythonichthys asodes Rosenblatt and Rubinoff, 1972 -- valid -- anguila de fango del Pacífico, Pacific mud eel
  Quassiremus nothochir (Gilbert, 1890) -- valid -- redsaddled snake eel, tieso bisagra
  Quietula y-cauda (Jenkins and Evermann, 1889) -- valid -- gobio sombreado, shadow goby
  Rachycentridae -- valid -- cobias, cobias, cobilos
  Rachycentron canadum (Linnaeus, 1766) -- valid -- cobia, cobia
  Radulinus asprellus Gilbert, 1890 -- valid -- charrasco flaco, slim sculpin
  Radulinus boleoides Gilbert in Jordan and Evermann, 1898 -- valid -- darter sculpin
  Radulinus vinculus Bolin, 1950 -- valid -- smoothgum sculpin
  Raja ackleyi Garman, 1881 -- valid -- ocellate skate, raya ocelada
  Raja binoculata Girard, 1855 -- valid -- big skate, raya bruja gigante
  Raja cortezensis McEachran and Miyake, 1988 -- valid -- Cortez skate, raya de Cortés
  Raja eglanteria Bosc in Lacepède, 1800 -- valid -- clearnose skate, raya naricita
  Raja equatorialis Jordan and Bollman, 1890 -- valid -- equatorial skate, raya ecuatorial
  Raja inornata Jordan and Gilbert, 1881 -- valid -- California skate, raya de California
  Raja rhina Jordan and Gilbert, 1880 -- valid -- longnose skate, raya narigona
  Raja stellulata Jordan and Gilbert, 1880 -- valid -- raya estrellada, starry skate
  Raja texana Chandler, 1921 -- valid -- raya tigre, roundel skate
  Raja velezi Chirichigno F., 1973 -- valid -- rasptail skate, raya chillona
  Rajidae Blainville, 1816 -- valid -- raies, rayas, rays, skates
  Ranzania laevis (Pennant, 1776) -- valid -- mola flaca, pez luna colitruncado, slender mola, Slender Mola
  Rastrinus scutiger (Bean, 1890) -- valid -- roughskin sculpin
  Rathbunella alleni Gilbert, 1904 -- valid -- ronco pelón aletirrayada, rough ronquil, rough ronquil, stripefin ronquil
  Rathbunella hypoplecta (Gilbert in Soldatov and Lindberg, 1890) -- valid -- bluebanded ronquil, ronco pelón rayado, smooth ronquil
  Regalecidae -- valid -- oarfishes, peces remo, régalées
  Regalecus glesne Ascanius, 1772 -- valid -- oarfish, rey de los arenques
  Reinhardtius hippoglossoides (Walbaum, 1792) -- valid -- flétan du Groenland, greeenland halibut, Greenland Halibut, Greenland halibut, Greenland turbot, Newfoundland turbot, platija negra, turbot
  Relictus solitarius Hubbs and Miller, 1972 -- valid -- relict dace
  Remora australis (Bennett, 1840) -- valid -- rémora ballenera, whalesucker
  Remora brachyptera (Lowe, 1839) -- valid -- pez pega robusto, rémora robusta, spearfish remora
  Remora osteochir (Cuvier, 1829) -- valid -- marlinsucker, pez pega disco, rémora marlinera
  Remora remora (Linnaeus, 1758) -- valid -- common remora, remora, rémora tiburonera
  Rhacochilus toxotes Agassiz, 1854 -- valid -- mojarra labios de hule, rubberlip seaperch
  Rhacochilus vacca (Girard, 1855) -- valid -- mojarra muellera, pile perch
  Rhamdia guatemalensis (Günther, 1864) -- valid -- juil descolorido, pale catfish
  Rhamdia laticauda (Kner, 1858) -- valid -- juil de Jamapa, rock catfish
  Rhamdia macuspanensis Weber and Wilkens, 1998 -- valid -- juil ciego olmeca, Olmec blind catfish
  Rhamdia parryi Eigenmann and Eigenmann, 1888 -- valid -- juil de Tonalá, Tonala catfish
  Rhamdia reddelli Miller, 1984 -- valid -- blindwhiskered catfish, juil ciego
  Rhamdia zongolicensis Wilkens, 1993 -- valid -- juil oaxaqueño, Oaxaca catfish
  Rhamphocottidae -- valid -- chabots grogneurs, charrascos gruñones, grunt sculpins
  Rhamphocottus richardsonii Günther, 1874 -- valid -- grunt sculpin
  Rhincodon typus Smith, 1828 -- valid -- dámero, requin baleine, tiburón ballena, whale shark
  Rhincodontidae -- valid -- requins baleine, requins-baleines, tiburones ballena, whale sharks
  Rhinichthys atratulus (Hermann, 1804) -- valid -- blacknose dace, eastern blacknose dace, naseux noir, naseux noir de l'est
  Rhinichthys cataractae (Valenciennes in Cuvier and Valenciennes, 1842) -- valid -- carpita rinconera, longnose dace, naseux des rapides
  Rhinichthys cobitis (Girard, 1856) -- valid -- carpita locha, loach dace, loach minnow
  Rhinichthys deaconi Miller, 1984 -- valid -- Las Vegas dace
  Rhinichthys evermanni Snyder, 1908 -- valid -- Umpqua dace
  Rhinichthys falcatus (Eigenmann and Eigenmann, 1893) -- valid -- leopard dace
  Rhinichthys obtusus Agassiz, 1854 -- valid -- western blacknose dace
  Rhinichthys osculus (Girard, 1856) -- valid -- carpita pinta, speckled dace
  Rhinichthys umatilla (Gilbert and Evermann, 1894) -- valid -- Umatilla dace
  Rhinobatidae Müller and Henle, 1837 -- valid -- guitares de mer, guitarfishes, guitarras
  Rhinobatos glaucostigma (Jordan and Gilbert, 1883) -- valid -- guitarra punteada, speckled guitarfish
  Rhinobatos lentiginosus Garman, 1880 -- valid -- Atlantic guitarfish, guitarra diablito
  Rhinobatos leucorhynchus (Günther, 1867) -- valid -- guitarra trompa blanca, whitesnout guitarfish
  Rhinobatos productus (Ayres, 1854) -- valid -- guitarra viola, shovelnose guitarfish
  Rhinogobiops nicholsii (Bean, 1882) -- valid -- blackeye goby, gobio triste
  Rhinoptera bonasus (Mitchill, 1815) -- valid -- cara de vaca, cownose ray, gavilán cubanito
  Rhinoptera steindachneri Evermann and Jenkins, 1891 -- valid -- gavilán dorado, golden cownose ray
  Rhinopteridae Jordan and Evermann, 1896 -- valid -- cow-nose rays, cownose rays, mourines, rayas gavilán
  Rhizoprionodon longurio (Jordan and Gilbert, 1882) -- valid -- cazón bironche, Pacific sharpnose shark
  Rhizoprionodon porosus (Poey, 1861) -- valid -- Caribbean sharpnose shark, cazón antillano, cazón de ley
  Rhizoprionodon terraenovae (Richardson, 1836) -- valid -- Atlantic sharpnose shark, cazón de ley, cazón de playa
  Rhodeus sericeus (Pallas, 1776) -- valid -- bitterling
  Rhodymenichthys dolichogaster (Pallas, 1814) -- valid -- stippled gunnel
  Rhomboplites aurorubens (Cuvier in Cuvier and Valenciennes, 1829) -- valid -- besugo, cotorro, vermilion snapper
  Rhynchoconger flavus (Goode and Bean, 1896) -- valid -- congrio amarillo, yellow conger
  Rhynchoconger gracilior (Ginsburg, 1951) -- valid -- congrina filamentosa, congrio grácil, whiptail conger
  Rhynchoconger nitens (Jordan and Bollman, 1890) -- valid -- congrio estilete, needletail conger
  Richardsonius balteatus (Richardson, 1836) -- valid -- redside shiner
  Richardsonius egregius (Girard, 1858) -- valid -- Lahontan redside, Lahontan shiner
  Rimicola cabrilloi Briggs, 2002 -- valid -- Channel Islands clingfish
  Rimicola dimorpha Briggs, 1955 -- valid -- chupapiedra chiquita, southern clingfish
  Rimicola eigenmanni (Gilbert, 1890) -- valid -- chupiedra flaca, slender clingfish
  Rimicola muscarum (Meek and Pierson, 1895) -- valid -- chupapiedra sargacera, kelp clingfish
  Rimicola sila Briggs, 1955 -- valid -- chupapiedra de Guadalupe, Guadalupe clingfish
  Risor ruber (Rosén, 1911) -- valid -- gobio boquita, gobio de boca chica, tusked goby
  Rivulus hartii (Boulenger, 1890) -- valid -- giant rivulus, Hart's rivulus, rainfish, Trinidad rivulus
  Rivulus marmoratus Poey, 1880 -- valid -- almirante de manglar, mangrove rivulus, Matanzas rivulus, rivulo de mangle, rivulo matancero, rivulus
  Rivulus tenuis (Meek, 1904) -- valid -- almirante del Hule, Maya rivulus
  Roeboides bouchellei Fowler, 1923 -- valid -- crystal tetra, sardinita cristal
  Roncador stearnsii (Steindachner, 1876) -- valid -- roncador aleta manchada, spotfin croaker
  Ronquilus jordani (Gilbert, 1889) -- valid -- northern ronquil
  Ruscarius creaseri (Hubbs, 1926) -- valid -- charrasco cachetirugoso, roughcheek sculpin
  Ruscarius meanyi Jordan and Starks, 1895 -- valid -- Puget Sound sculpin
  Ruvettus pretiosus Cocco, 1833 -- valid -- escolar, escolar clavo, oilfish
  Rypticus bicolor Valenciennes, 1846 -- valid -- jabonero moteado, mottled soapfish, pacific soapfish, pacific soapfish
  Rypticus bistrispinus (Mitchill, 1818) -- valid -- freckled soapfish, jaboncillo pecoso, jabonero pecoso
  Rypticus courtenayi McCarthy, 1979 -- valid -- jabonero de Socorro, Socorro soapfish
  Rypticus maculatus Holbrook, 1855 -- valid -- jabonero albipunteado, whitespotted soapfish
  Rypticus nigripinnis Gill, 1861 -- valid -- jabonero doble punteado, twice-spotted soapfish
  Rypticus saponaceus (Bloch and Schneider, 1801) -- valid -- greater soapfish, jaboncillo máximo, jabonero grande
  Rypticus subbifrenatus Gill, 1861 -- valid -- jaboncillo punteado, jabonero punteado, spotted soapfish
  Salmo salar Linnaeus, 1758 -- valid -- Atlantic salmon, saumon atlantique
  Salmo trutta Linnaeus, 1758 -- valid -- brown trout, truite brune
  Salmonidae -- valid -- salmonids, salmons, trouts, trouts and salmons, truchas y salmones, truites et saumons
  Salvelinus alpinus (Linnaeus, 1758) -- valid -- Arctic char, omble chevalier
  Salvelinus confluentus (Suckley, 1859) -- valid -- bull trout
  Salvelinus fontinalis (Mitchill, 1814) -- valid -- aurora trout, brook trout, charr, coaster brook trout, omble aurora, omble de fontaine, salter, sea trout, trucha de arroyo
  Salvelinus malma (Walbaum in Artedi, 1792) -- valid -- Dolly Varden
  Salvelinus namaycush (Walbaum in Artedi, 1792) -- valid -- lake trout, touladi
  Sander canadensis (Griffith and Smith, 1834) -- valid -- doré noir, sauger
  Sander lucioperca (Linnaeus, 1758) -- valid -- pikeperch, sudak, zander
  Sander vitreus (Mitchill, 1818) -- valid -- doré jaune, walleye
  Sanopus johnsoni Collette and Starck in Collette, 1974 -- valid -- Cozumel toadfish, sapo de Cozumel
  Sanopus reticulatus Collette, 1983 -- valid -- reticulate toadfish, sapo reticulado
  Sanopus splendidus Collette, Starck and Phillips in Collette, 1974 -- valid -- sapo magnífico, splendid toadfish
  Sarda chiliensis (Cuvier in Cuvier and Valenciennes, 1832) -- valid -- bonite du Pacifique oriental, bonito del Pacifico oriental, bonito del Pacífico oriental, eastern Pacific bonito, Pacific bonito
  Sarda orientalis (Temminck and Schlegel, 1844) -- valid -- bonito mono, bonito oriental, oriental bonito, striped bonito
  Sarda sarda (Bloch, 1793) -- valid -- Atlantic bonito, bloater, bone jack, bonite à dos rayé, bonito, bonito Atlántico, bonito del Atlántico, Boston mackerel, common bonito
  Sardinella aurita Valenciennes in Cuvier and Valenciennes, 1847 -- valid -- round sardinella, sardina de España, sardina española, Spanish sardine
  Sardinops sagax (Jenyns, 1842) -- valid -- Pacific sardine, sardina monterrey, South American pilchard
  Sargocentron bullisi (Woods, 1955) -- valid -- carajuelo profundo, deepwater squirrelfish
  Sargocentron coruscum (Poey, 1860) -- valid -- carajuelo de arrecife, reef squirrelfish
  Sargocentron poco (Woods, 1965) -- valid -- saddle squirrelfish
  Sargocentron suborbitalis (Gill, 1863) -- valid -- candil sol, tinsel squirrelfish
  Sargocentron vexillarium (Poey, 1860) -- valid -- carajuelo oscuro, dusky squirrelfish
  Sarotherodon melanotheron Rüppell, 1852 -- valid -- blackchin mouthbreeder, blackchin tilapia
  Satan eurystomus Hubbs and Bailey, 1947 -- valid -- widemouth blindcat
  Saurenchelys cognita Smith, 1989 -- valid -- longface eel, serpentina noble
  Saurida brasiliensis Norman, 1935 -- valid -- chile brasileño, chile brasileño, lagarto brasileño, largescale lizardfish
  Saurida caribbaea Breder, 1927 -- valid -- chile caribeño, lagarto caribeño, smallscale lizardfish
  Saurida normani Longley, 1935 -- valid -- chile espinoso, lagarto espinoso, shortjaw lizardfish
  Scaphirhynchus albus (Forbes and Richardson, 1905) -- valid -- pallid sturgeon
  Scaphirhynchus platorynchus (Rafinesque, 1820) -- valid -- shovelnose sturgeon
  Scaphirhynchus suttkusi Williams and Clemmer, 1991 -- valid -- Alabama sturgeon
  Scardinius erythrophthalmus (Linnaeus, 1758) -- valid -- pearl roach, rudd
  Scaridae Rafinesque, 1810 -- valid -- loros, parrotfishes, poissons-perroquets
  Scartella cristata (Linnaeus, 1758) -- valid -- blenio peineta, borracho peineta, molly miller
  Scarus coelestinus Valenciennes in Cuvier and Valenciennes, 1840 -- valid -- loro de medianoche, midnight parrotfish
  Scarus coeruleus (Bloch, 1786) -- valid -- blue parrotfish, loro azul
  Scarus compressus (Osburn and Nichols, 1916) -- valid -- azure parrotfish, loro chato
  Scarus ghobban Forsskål, 1775 -- valid -- bluechin parrotfish, flame parrotfish, loro barbazul
  Scarus guacamaia Cuvier, 1829 -- valid -- loro guacamayo, rainbow parrotfish
  Scarus iseri (Bloch, 1789) -- valid -- loro listado, striped parrotfish
  Scarus perrico Jordan and Gilbert, 1882 -- valid -- bumphead parrotfish, loro jorobado, perrico
  Scarus rubroviolaceus Bleeker, 1847 -- valid -- bicolor parrotfish, loro bicolor
  Scarus taeniopterus Desmarest in Bory de Saint-Vincent, 1831 -- valid -- loro princesa, princess parrotfish
  Scarus vetula Bloch and Schneider, 1801 -- valid -- loro reina, queen parrotfish
  Schultzea beta (Hildebrand in Longley and Hildebrand, 1940) -- valid -- school bass, serrano escolar, serrano sin dientes
  Sciadeops troschellii (Gill, 1863) -- invalid -- bagre chili, chili sea catfish
  Sciades hymenorrhinos (Bleeker, 1862) -- valid -- bagre moreno, flapnose sea catfish
  Sciades hymenorrhinus (Bleeker, 1862) -- invalid -- bagre moreno, flapnose sea catfish
  Sciades troschelii Gill, 1863 -- valid -- bagre chili, chili sea catfish
  Sciaenidae -- valid -- coakers, corbs, corvinas y berrugatas, courbines, croakers, drums, drums and croakers, maigres, ombrines, roncadores, tambours
  Sciaenops ocellatus (Linnaeus, 1766) -- valid -- corvineta ocelada, red drum
  Scomber australasicus Cuvier in Cuvier and Valenciennes, 1832 -- valid -- blue mackerel, caballa pintoja, Japanese mackerel, macarela pintoja, maquereau tacheté, slimy mackerel, spotted chub mackerel, spotted mackerel
  Scomber colias Gmelin, 1789 -- valid -- Altantic chub mackerel, Atlantic chub mackerel, bullseye hardhead, macarela estornino, maquereau blanc
  Scomber japonicus Houttuyn, 1782 -- valid -- chub mackerel, common mackerel, estornino, macarela estornino, maquereau blanc, maquereau Espagnol, Pacific chub mackerel, Pacific mackerel
  Scomber scombrus Linnaeus, 1758 -- valid -- Atlantic mackerel, caballa del Atlántico, maquereau bleu, maquereau commun
  Scomberesocidae -- valid -- balaous, papardas, sauries, saury pikes
  Scomberesox saurus (Walbaum, 1792) -- valid -- Atlantic saury, balaou, sauro atlántico, skipper garfish
  Scomberomorus brasiliensis Collette, Russo and Zavala-Camin, 1978 -- valid -- serra, serra, serra Spanish mackerel, serro Spanish mackerel, thazard tacheté du sud
  Scomberomorus cavalla (Cuvier, 1829) -- valid -- carite lucio, carito, king mackerel, sierra, thazard serra
  Scomberomorus concolor (Lockington, 1879) -- valid -- carite de Monterey, Gulf sierra, Monterey Spanish mackerel, sierra golfina, thazard de Monterey
  Scomberomorus maculatus (Mitchill, 1815) -- valid -- Atlantic Spanish mackerel, carite Atlántico, serrucho, sierra común, Spanish mackerel, thazard Atlantique
  Scomberomorus regalis (Bloch, 1793) -- valid -- carite chinigua, cero, painted mackerel, pintada, sierra, thazard franc
  Scomberomorus sierra Jordan and Starks in Jordan, 1895 -- valid -- carite sierra, Mexican sierra, Pacific sierra, sierra del Pacífico, thazard sierra
  Scombridae -- valid -- albacores, bonitos, macarelas, mackerels, maquereaux, tunas
  Scopelarchidae -- valid -- ojos de perla, pearleyes, yeux-perlés
  Scophthalmidae -- valid -- rodaballos, scophthalmidés, scophthalmids, turbots
  Scophthalmus aquosus (Mitchill, 1815) -- valid -- brill, sand dab, spotted flounder, turbot de sable, Windowpane, windowpane
  Scorpaena agassizii Goode and Bean, 1896 -- valid -- escorpión aleta larga, longfin scorpionfish
  Scorpaena albifimbria Evermann and Marsh, 1900 -- valid -- coral scorpionfish, escorpión coralino, lesser scorpionfish, rascacio coralino
  Scorpaena bergii Evermann and Marsh, 1900 -- valid -- escorpión gansito, goosehead scorpionfish
  Scorpaena brachyptera Eschmeyer, 1965 -- valid -- shortfin scorpionfish
  Scorpaena brasiliensis Cuvier in Cuvier and Valenciennes, 1829 -- valid -- barbfish, escorpión pardo, goosehead scorpionfish, rascacio ganso
  Scorpaena calcarata Goode and Bean, 1882 -- valid -- escorpión pelón, rascacio pelón, smoothhead scorpionfish
  Scorpaena dispar Longley and Hildebrand, 1940 -- valid -- escorpión jorobado, hunchback scorpionfish
  Scorpaena elachys Eschmeyer, 1965 -- valid -- dwarf scorpionfish
  Scorpaena grandicornis Cuvier in Cuvier and Valenciennes, 1829 -- valid -- escorpión plumeado, plumed scorpionfish, poison grouper, rascacio cornudo
  Scorpaena guttata Girard, 1854 -- valid -- California scorpionfish, escorpión californiano, finscaled scoprionfish
  Scorpaena histrio Jenyns, 1840 -- valid -- escorpión juguetón, player scorpionfish
  Scorpaena inermis Cuvier in Cuvier and Valenciennes, 1829 -- valid -- escorpión hongo, mushroom scorpionfish, rascacio bongo
  Scorpaena isthmensis Meek and Hildebrand, 1928 -- valid -- escorpión mejilla lisa, smoothcheek scorpionfish
  Scorpaena mystes Jordan and Starks in Jordan, 1895 -- valid -- escorpión roquero, lapon, stone scorpionfish
  Scorpaena plumieri Bloch, 1789 -- valid -- escorpión negro, rascacio multicolor, spotted scorpionfish
  Scorpaena russula Jordan and Bollman, 1890 -- valid -- escorpión sapo, reddish scorpionfish
  Scorpaena sonorae Jenkins and Evermann, 1889 -- valid -- escorpión de Sonora, Sonora scorpionfish
  Scorpaenichthys marmoratus (Ayres, 1854) -- valid -- cabezon, cabezón
  Scorpaenidae -- valid -- escorpiones y rocotes, firefishes, goblinfishes, rascasses, rockfishes, scorpènes, scorpénidés, scorpionfishes
  Scorpaenodes caribbaeus Meek and Hildebrand, 1928 -- valid -- escorpión de arrecife, reef scorpionfish
  Scorpaenodes tredecimspinosus (Metzelaar, 1919) -- valid -- deepreef scorpionfish, escorpión espinoso, rascacio espinoso
  Scorpaenodes xyris (Jordan and Gilbert, 1882) -- valid -- escorpión arcoiris, rainbow scorpionfish
  Scuticaria tigrina (Lesson, 1828) -- valid -- morena atigrada, tiger reef eel
  Scyliorhinidae Gill, 1862 -- valid -- cat sharks, catsharks, pejegatos, roussettes
  Scyliorhinus retifer (Garman, 1881) -- valid -- alitán mallero, chain catshark, chain dogfish
  Scytalichthys miurus (Jordan and Gilbert, 1882) -- valid -- shorttail viper eel, tieso víbora
  Scytalina cerdale Jordan and Gilbert, 1880 -- valid -- graveldiver
  Scytalinidae Jordan and Evermann, 1898 -- valid -- blennies fouisseuses, graveldivers, peces topo
  Sebastes aleutianus (Jordan and Evermann, 1898) -- valid -- rougheye rockfish
  Sebastes alutus (Gilbert, 1890) -- valid -- Pacific ocean perch
  Sebastes atrovirens (Jordan and Gilbert, 1880) -- valid -- kelp rockfish, rocote sargacero
  Sebastes auriculatus Girard, 1854 -- valid -- brown rockfish, rocote moreno
  Sebastes aurora (Gilbert, 1890) -- valid -- aurora rockfish
  Sebastes babcocki (Thompson, 1915) -- valid -- redbanded rockfish
  Sebastes borealis Barsukov, 1970 -- valid -- shortraker rockfish
  Sebastes brevispinis (Bean, 1884) -- valid -- silvergray rockfish
  Sebastes carnatus (Jordan and Gilbert, 1880) -- valid -- gopher rockfish, rocote amarillo
  Sebastes caurinus Richardson, 1844 -- valid -- copper rockfish, rocote cobrizo
  Sebastes chlorostictus (Jordan and Gilbert, 1880) -- valid -- greenspotted rockfish, rocote verde
  Sebastes chrysomelas (Jordan and Gilbert, 1881) -- valid -- black-and-yellow rockfish, rocote mulato
  Sebastes ciliatus (Tilesius, 1813) -- valid -- dusky rockfish
  Sebastes constellatus (Jordan and Gilbert, 1880) -- valid -- rocote estrellado, starry rockfish
  Sebastes cortezi (Beebe and Tee-Van, 1938) -- valid -- Cortez rockfish, rocote de Cortés
  Sebastes crameri (Jordan in Gilbert, 1897) -- valid -- darkblotched rockfish
  Sebastes dallii (Eigenmann and Beeson, 1894) -- valid -- calico rockfish, rocote algodón
  Sebastes diploproa (Gilbert, 1890) -- valid -- rocote doble hocico, splitnose rockfish
  Sebastes elongatus Ayres, 1859 -- valid -- greenstriped rockfish, rocote reina
  Sebastes emphaeus (Starks, 1911) -- valid -- Puget Sound rockfish
  Sebastes ensifer Chen, 1971 -- valid -- rocote espada, swordspine rockfish
  Sebastes entomelas (Jordan and Gilbert, 1880) -- valid -- rocote viuda, widow rockfish
  Sebastes eos (Eigenmann and Eigenmann, 1890) -- valid -- pink rockfish, rocote Santa María
  Sebastes exsul Chen, 1971 -- valid -- buccaneer rockfish, rocote bucanero
  Sebastes fasciatus Storer, 1854 -- valid -- Acadian redfish, Acadian rockfish, Labrador redfish, sébaste acadien
  Sebastes flavidus (Ayres, 1862) -- valid -- yellowtail rockfish
  Sebastes gilli (Eigenmann, 1891) -- valid -- bronzespotted rockfish, rocote bronceado
  Sebastes glaucus Hilgendorf, 1880 -- valid -- gray rockfish
  Sebastes goodei (Eigenmann and Eigenmann, 1890) -- valid -- chilipepper, rocote pimienta
  Sebastes helvomaculatus Ayres, 1859 -- valid -- rosethorn rockfish
  Sebastes hopkinsi (Cramer, 1895) -- valid -- rocote a cuadros, squarespot rockfish
  Sebastes jordani (Gilbert, 1896) -- valid -- rocote pancita, shortbelly rockfish
  Sebastes lentiginosus Chen, 1971 -- valid -- freckled rockfish, rocote pecoso
  Sebastes levis (Eigenmann and Eigenmann, 1889) -- valid -- cowcod, rocote vaquilla
  Sebastes macdonaldi (Eigenmann and Beeson, 1893) -- valid -- Mexican rockfish, rocote mexicano
  Sebastes maliger (Jordan and Gilbert, 1880) -- valid -- quillback rockfish
  Sebastes melanops Girard, 1856 -- valid -- black rockfish
  Sebastes melanosema Lea and Fitch, 1979 -- valid -- rocote semáforo, semaphore rockfish
  Sebastes melanostomus (Eigenmann and Eigenmann, 1890) -- valid -- blackgill rockfish, rocote agalla negra
  Sebastes mentella Travin, 1951 -- valid -- deepwater redfish, deepwater rockfish, sébaste atlantique
  Sebastes miniatus (Jordan and Gilbert, 1880) -- valid -- rocote bermejo, vermilion rockfish
  Sebastes moseri Eitner in Eitner, Kimbrell and Vetter, 1999 -- valid -- rocote manchas blancas, whitespotted rockfish
  Sebastes mystinus (Jordan and Gilbert, 1881) -- valid -- blue rockfish, rocote azul
  Sebastes nebulosus Ayres, 1854 -- valid -- China rockfish
  Sebastes nigrocinctus Ayres, 1859 -- valid -- tiger rockfish
  Sebastes norvegicus (Ascanius, 1772) -- valid -- golden redfish, sébaste orangé
  Sebastes notius Chen, 1971 -- valid -- Guadalupe rockfish, rocote de Guadalupe
  Sebastes ovalis (Ayres, 1862) -- valid -- rocote manchado, speckled rockfish
  Sebastes paucispinis Ayres, 1854 -- valid -- bocaccio, rocote bocaccio
  Sebastes peduncularis Chen, 1975 -- valid -- Gulf rockfish, rocote del Golfo
  Sebastes phillipsi (Fitch, 1964) -- valid -- chameleon rockfish
  Sebastes pinniger (Gill, 1864) -- valid -- canary rockfish, rocote canario
  Sebastes polyspinis (Taranetz and Moiseev in Taranetz, 1933) -- valid -- northern rockfish
  Sebastes proriger (Jordan and Gilbert, 1880) -- valid -- redstripe rockfish
  Sebastes rastrelliger (Jordan and Gilbert, 1880) -- valid -- grass rockfish, rocote olivo
  Sebastes reedi (Westrheim and Tsuyuki, 1967) -- valid -- yellowmouth rockfish
  Sebastes rosaceus Girard, 1854 -- valid -- rocote rosado, rosy rockfish
  Sebastes rosenblatti Chen, 1971 -- valid -- greenblotched rockfish, rocote motas verdes
  Sebastes ruberrimus (Cramer, 1895) -- valid -- rasphead rockfish, rocote ojo amarillo, yelloweye rockfish
  Sebastes rubrivinctus (Jordan and Gilbert, 1880) -- valid -- flag rockfish, rocote bandera
  Sebastes rufinanus Lea and Fitch, 1972 -- valid -- dwarf-red rockfish
  Sebastes rufus (Eigenmann and Eigenmann, 1890) -- valid -- bank rockfish, rocote rojo
  Sebastes saxicola (Gilbert, 1890) -- valid -- rocote cola listada, stripetail rockfish
  Sebastes semicinctus (Gilbert, 1897) -- valid -- halfbanded rockfish, rocote inspector
  Sebastes serranoides (Eigenmann and Eigenmann, 1890) -- valid -- olive rockfish, rocote falsa cabrilla
  Sebastes serriceps (Jordan and Gilbert, 1880) -- valid -- rocote presidiario, treefish
  Sebastes simulator Chen, 1971 -- valid -- pinkrose rockfish, rocote rosa
  Sebastes sinensis (Gilbert, 1890) -- valid -- blackmouth rockfish, rocote boquinegra
  Sebastes spinorbis Chen, 1975 -- valid -- rocote ojo espinoso, spinyeye rockfish
  Sebastes umbrosus (Jordan and Gilbert, 1882) -- valid -- honeycomb rockfish, rocote panal
  Sebastes variegatus Quast, 1971 -- valid -- harlequin rockfish
  Sebastes varispinis Chen, 1975 -- valid -- hidden rockfish, rocote escondido
  Sebastes wilsoni (Gilbert, 1915) -- valid -- pygmy rockfish
  Sebastes zacentrus (Gilbert, 1890) -- valid -- sharpchin rockfish
  Sebastolobus alascanus Bean, 1890 -- valid -- chancharro alacrán, shortspine thornyhead
  Sebastolobus altivelis Gilbert, 1896 -- valid -- chancharro espinoso, longspine thornyhead
  Sebastolobus macrochir (Günther, 1877) -- valid -- broadbanded thornyhead, broadfin thornyhead
  Sectator ocyurus (Jordan and Gilbert, 1882) -- valid -- bluestriped chub, chopa salema
  Selar crumenophthalmus (Bloch, 1793) -- valid -- bigeye scad, charrito ojón, chicharro
  Selene brevoortii (Gill, 1863) -- valid -- jorobado mexicano, Mexican lookdown
  Selene brownii (Cuvier, 1816) -- valid -- Caribbean moonfish, jorobado luna
  Selene orstedii Lütken, 1880 -- valid -- dollarfish, jorobado carite, Mexican moonfish, moonfish
  Selene peruviana (Guichenot, 1866) -- valid -- jorobado papelillo, Pacific moonfish
  Selene setapinnis (Mitchill, 1815) -- valid -- Atlantic moonfish, cara de caballo, jorobado caballa
  Selene vomer (Linnaeus, 1758) -- valid -- jorobado, jorobado penacho, lookdown
  Semicossyphus pulcher (Ayres, 1854) -- valid -- California sheephead, vieja californiana
  Semotilus atromaculatus (Mitchill, 1818) -- valid -- creek chub, mulet à cornes
  Semotilus corporalis (Mitchill, 1817) -- valid -- fallfish, ouitouche
  Semotilus lumbee Snelson and Suttkus, 1978 -- valid -- sandhills chub
  Semotilus thoreauianus Jordan, 1877 -- valid -- Dixie chub
  Seriola dumerili (Risso, 1810) -- valid -- coronado de ley, greater amberjack, medregal coronado
  Seriola fasciata (Bloch, 1793) -- valid -- lesser amberjack, medregal, medregal listado
  Seriola lalandi Valenciennes in Cuvier and Valenciennes, 1833 -- valid -- great amberjack, medregal rabo amarillo, yellowtail, yellowtail jack
  Seriola peruana Steindachner, 1881 -- valid -- fortune jack, medregal fortuno
  Seriola rivoliana Valenciennes in Cuvier and Valenciennes, 1833 -- valid -- almaco jack, coronado, medregal limón, Pacific amberjack
  Seriola zonata (Mitchill, 1815) -- valid -- banded rubberfish, banded rudderfish, coronado de bandas, medregal rayado, sériole à ceintures
  Seriphus politus Ayres, 1860 -- valid -- corvineta reina, queenfish
  Serraniculus pumilio Ginsburg, 1952 -- valid -- pygmy sea bass, serrano pigmeo
  Serranidae -- valid -- bars, cabrillas y meros, groupers, mérous, sea basses, sea basses and groupers, serranidés, serrans
  Serranus aequidens Gilbert, 1890 -- valid -- deepwater serrano, serrano de agua profunda
  Serranus annularis (Günther, 1880) -- valid -- orangeback bass, serrano de dorso naranja, serrano naranja
  Serranus atrobranchus (Cuvier in Cuvier and Valenciennes, 1829) -- valid -- blackear bass, serrano oreja negra
  Serranus baldwini (Evermann and Marsh, 1899) -- valid -- lantern bass, serrano linterna
  Serranus chionaraia Robins and Starck, 1961 -- valid -- serrano nevado, snow bass
  Serranus huascarii Steindachner, 1900 -- valid -- flag serrano, serrano bandera
  Serranus notospilus Longley, 1935 -- valid -- saddle bass, serrano ensillado
  Serranus phoebe Poey, 1851 -- valid -- diana, serrano diana, tattler
  Serranus psittacinus Valenciennes, 1846 -- valid -- barred serrano, serrano guaseta
  Serranus socorroensis Allen and Robertson, 1992 -- valid -- serrano de Socorro, Socorro serrano
  Serranus subligarius (Cope, 1870) -- valid -- belted sandfish, serrano aporreado, serrano leopardo
  Serranus tabacarius (Cuvier in Cuvier and Valenciennes, 1829) -- valid -- jácome, serrano jácome, tobaccofish
  Serranus tigrinus (Bloch, 1790) -- valid -- harlequin bass, serrano arlequín
  Serranus tortugarum Longley, 1935 -- valid -- chalk bass, serrano pálido, serrano tortuga
  Sicydium gymnogaster Ogilvie-Grant, 1884 -- valid -- dormilón de Veracruz, smoothbelly goby
  Sicydium multipunctatum Regan, 1906 -- valid -- dormilón pecoso, multispotted goby
  Sigmistes caulias Rutter in Jordan and Evermann, 1898 -- valid -- kelp sculpin
  Sigmistes smithi Schultz, 1938 -- valid -- arched sculpin
  Siluriformes -- valid -- catfishes, silures
  Skiffia francesae Kingston, 1978 -- valid -- golden skiffia, tiro dorado
  Skiffia lermae Meek, 1902 -- valid -- olive skiffia, tiro olivo
  Skiffia multipunctata (Pellegrin, 1901) -- valid -- splotched skiffia, tiro pintado
  Snyderichthys copei (Jordan and Gilbert, 1881) -- invalid -- leatherside chub
  Soleidae -- valid -- soles, soles, suelas soles
  Somniosus microcephalus (Bloch and Schneider, 1801) -- valid -- gray shark, Greenland shark, ground shark, gurry shark, laimargue, sleeper shark
  Somniosus pacificus Bigelow and Schroeder, 1944 -- valid -- Pacific sleeper shark, tiburón dormilón del Pacífico
  Sparidae -- valid -- dorades, plumas, porgies
  Sparisoma atomarium (Poey, 1861) -- valid -- greenblotch parrotfish, loro de lunar verde, loro mancha verde
  Sparisoma aurofrenatum (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- loro manchado, redband parrotfish, vieja lora
  Sparisoma chrysopterum (Bloch and Schneider, 1801) -- valid -- loro colirrojo, loro verde, redtail parrotfish
  Sparisoma radians (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- bucktooth parrotfish, loro dientuso
  Sparisoma rubripinne (Valenciennes in Cuvier and Valenciennes, 1840) -- valid -- loro aletirojo, loro coliamarilla, redfin parrotfish, yellowtail parrotfish
  Sparisoma viride (Bonnaterre, 1788) -- valid -- loro, loro brilloso, stoplight parrotfish
  Speoplatyrhinus poulsoni Cooper and Kuehne, 1974 -- valid -- Alabama cavefish
  Sphoeroides annulatus (Jenyns, 1842) -- valid -- botete diana, Bullseye Puffer, bullseye puffer
  Sphoeroides dorsalis Longley, 1934 -- valid -- botete jaspeado, Marbled Puffer, marbled puffer
  Sphoeroides lispus Walker in Walker & Bussing, 1996 -- valid -- botete liso, naked puffer, Naked Puffer
  Sphoeroides lobatus (Steindachner, 1870) -- valid -- botete, botete verrugoso, Longnose Puffer, longnose puffer
  Sphoeroides maculatus (Bloch & Schneider, 1801) -- valid -- northern puffer, Northern Puffer, sphéroïde du nord
  Sphoeroides nephelus (Goode & Bean, 1882) -- valid -- botete fruta, Southern Puffer, southern puffer, tamboril sureño
  Sphoeroides pachygaster (Müller & Troschel in Schomburgk, 1848) -- valid -- blunthead puffer, Blunthead Puffer, botete chato, sphéroïde trogne
  Sphoeroides parvus Shipp & Yerger, 1969 -- valid -- botete xpú, Least Puffer, least puffer
  Sphoeroides sechurae Hildebrand, 1946 -- valid -- botete peruano, Peruvian puffer
  Sphoeroides spengleri (Bloch, 1785) -- valid -- bandtail puffer, Bandtail Puffer, botete collarete, tamboril manchado
  Sphoeroides testudineus (Linnaeus, 1758) -- valid -- botete sapo, Checkered Puffer, checkered puffer, tamboríl rayado
  Sphoeroides trichocephalus (Cope, 1870) -- valid -- botete enano, pygmy puffer, Pygmy Puffer
  Sphyraena argentea Girard, 1854 -- valid -- barracuda plateada, Pacific barracuda
  Sphyraena barracuda (Edwards in Catesby, 1771) -- valid -- barracuda, great barracuda, picúa
  Sphyraena borealis DeKay, 1842 -- valid -- northern sennet, picudilla
  Sphyraena ensis Jordan and Gilbert, 1882 -- valid -- barracuda mexicana, Mexican barracuda, vicuda
  Sphyraena guachancho Cuvier in Cuvier and Valenciennes, 1829 -- valid -- guaguanche, guaguancho, tolete
  Sphyraena idiastes Heller and Snodgrass, 1903 -- valid -- barracuda pelícano, pelican barracuda
  Sphyraena lucasana Gill, 1863 -- valid -- barracuda de Cortés, Cortez barracuda
  Sphyraena picudilla Poey, 1860 -- invalid -- picudilla, southern sennet
  Sphyraenidae -- v