Integrated Taxonomic Information System - Taxon Author Search Results

Taxon author: All.

ITIS records citing taxon author "All."
 
 Kingdom Animalia
  Aberratylus Bousfield and Kendall, 1994 -- valid
  Ablabesmyia basilis (Walley, 1925) -- invalid
  Ablabesmyia idei (Walley, 1925) -- valid
  Ablabesmyia illinoensis Malloch, 1915 -- valid
  Ablabesmyia mallochi (Walley, 1925) -- valid
  Ablabesmyia peleensis (Walley, 1926) -- valid
  Ablabesmyia prudens Walley, 1925 -- invalid
  Ablepharus nigropunctatus Hallowell, 1861 -- invalid
  Ableptemetes dicinctus (Allen and Brusca, 1973) -- valid
  Ableptemetes melanobranchus (Allen and Brusca, 1973) -- valid
  Abra lioica (Dall, 1881) -- valid -- smooth abra
  Abra pacifica Dall, 1915 -- valid
  Abra tepocana Dall, 1915 -- valid
  Abramis sapa (Pallas, 1814) -- valid
  Abrothrix hershkovitzi (Patterson, Gallardo and Freas, 1984) -- valid -- Hershkovitz's Akodont, Hershkovitz's Grass Mouse
  Abscondita Ballantyne, Lambkin and Fu in Ballantyne et al., 2013 -- valid
  Abscondita berembun Nada in Ballantyne et al., 2019 -- valid
  Abscondita jerangau Nada in Ballantyne et al., 2019 -- valid
  Abudefduf caeruleolineatus Allen, 1973 -- invalid
  Abudefduf conformis Randall and Earle, 1999 -- valid
  Abudefduf flavipinnis Allen and Robertson, 1974 -- invalid
  Abudefduf lorenzi Hensley and Allen, 1977 -- valid
  Abudefduf natalensis Hensley and Randall, 1983 -- valid
  Abudefduf starcki Allen, 1973 -- invalid
  Abudefduf whitleyi Allen and Robertson, 1974 -- valid
  Acalles indigens Fall, 1907 -- valid
  Acallodes lysimachiae Fall, 1913 -- valid
  Acallurothrips Bagnall, 1921 -- valid
  Acalypta nigrina (Fallén, 1807) -- valid
  Acalypta parvula (Fallén, 1807) -- valid
  Acalypta susanae Allen, Carlton and Tedder, 1988 -- valid
  Acanonicus Dallas, 1852 -- valid
  Acanthaspis fulvipes (Dallas, 1850) -- valid
  Acanthaxius hirsutimanus (Boesch and Smalley, 1972) -- valid
  Acanthobothrium dysbiotos (MacCallum, 1921) -- valid
  Acanthobothrium incognita (MacCallum, 1921) -- valid
  Acanthocephala granulosa (Dallas, 1852) -- invalid
  Acanthocephala parensis (Dallas, 1852) -- valid
  Acanthocephala terminalis (Dallas, 1852) -- valid
  Acanthochitona angelica Dall, 1919 -- valid
  Acanthocoris obscuricornis Dallas, 1852 -- valid
  Acanthocreagris apulica Callaini, 1986 -- valid
  Acanthocreagris microphthalma Callaini, 1986 -- valid
  Acanthocreagris sandaliotica Callaini, 1986 -- valid
  Acanthodactylus lacrymae Miralles, Geniez, Beddek, Mendez-Aranda, Brito, Leblois and Crochet, 2020 -- valid
  Acanthodactylus montanus Miralles, Geniez, Beddek, Mendez-Aranda, Brito, Leblois and Crochet, 2020 -- valid
  Acanthodotheca beameri (Hall, 1931) -- valid
  Acanthodotheca omani (Hall, 1931) -- valid
  Acantholaimus Allgen, 1933 -- valid
  Acantholaimus longisetosus Allgen, 1933 -- valid
  Acanthomysis columbiae (W. M. Tattersall, 1933) -- invalid
  Acanthomysis hodgarti (W. M. Tattersall, 1922) -- invalid
  Acanthomysis indica (W. M. Tattersall, 1922) -- valid
  Acanthomysis macropsis (W. M. Tattersall, 1932) -- invalid
  Acanthomysis ornata O. Tattersall, 1965 -- valid
  Acanthomysis pseudomacropsis (W. M. Tattersall, 1933) -- invalid
  Acanthomysis sculpta (W. M. Tattersall, 1933) -- invalid
  Acanthomysis trophopristes O. Tattersall, 1957 -- valid
  Acanthonchus californicus (Allgen, 1947) -- valid
  Acanthonchus duplex (Allgen, 1947) -- valid
  Acanthoneura nigriventris Malloch, 1939 -- invalid
  Acanthonevroides nigriventris (Malloch, 1939) -- valid
  Acanthopharynx brachycapitata (Allgen, 1947) -- valid
  Acanthopseudomonocelis Curini-Galletti and Cannon, 1995 -- valid
  Acanthopseudomonocelis mirabilis Curini-Galletti and Cannon, 1995 -- valid
  Acanthoscelides atomus (Fall, 1910) -- valid
  Acanthoscelides biustulus (Fall, 1910) -- valid
  Acanthoscelides chiricahuae (Fall, 1910) -- valid
  Acanthoscelides griseolus (Fall, 1910) -- valid
  Acanthoscelides inquisitus (Fall, 1910) -- valid
  Acanthoscelides lobatus (Fall, 1910) -- valid
  Acanthoscelides pullus (Fall, 1910) -- valid
  Acanthoscurria theraphosoides (Doleschall, 1871) -- valid
  Acanthosoma cornutum Dallas, 1849 -- valid
  Acanthosoma difficile Dallas, 1851 -- invalid
  Acanthosoma distinctum Dallas, 1851 -- invalid
  Acanthosoma dubium Dallas, 1851 -- invalid
  Acanthosoma elongatum Dallas, 1851 -- invalid
  Acanthosoma forfex Dallas, 1851 -- valid
  Acanthosoma laevicorne Dallas, 1851 -- valid
  Acanthosoma proximum Dallas, 1851 -- invalid
  Acanthosoma rufescens Dallas, 1851 -- valid
  Acanthurus albipectoralis Allen & Ayling, 1987 -- valid
  Acanthurus auranticavus Randall, 1956 -- valid
  Acanthurus chronixis Randall, 1960 -- valid
  Acanthurus reversus Randall & Earle, 1999 -- valid
  Acanthurus tristis Randall, 1993 -- valid
  Acar asperula Dall, 1881 -- invalid
  Acarus aureolatus Pallas, 1772 -- invalid
  Accipiter hiogaster sylvestris Wallace, 1864 -- valid
  Acerentomon affine Bagnall, 1912 -- valid
  Acerentomon condei Nosek and Dallai, 1982 -- valid
  Aceros maculatus Hallez, 1905 -- invalid
  Acerotisa maculata (Hallez, 1905) -- invalid
  Acestra Dallas, 1852 -- valid
  Acestra sinica Dallas, 1852 -- valid
  Achaetoneura melalophae Allen, 1926 -- invalid
  Acharax Dall, 1908 -- valid
  Acharax johnsoni (Dall, 1891) -- valid
  Achelia nudiuscula (Hall, 1913) -- invalid
  Acherontiella carusoi Dallai, 1978 -- valid
  Achipteria bentonensis Marshall, Reeves & Norton, 1987 -- valid
  Achipteria nuda (Hall, 1911) -- invalid
  Achorutes denticulatus Bagnall, 1941 -- invalid
  Achromadora aetiopica (Allgen, 1933) -- valid
  Acinia fimbrata Malloch, 1941 -- invalid
  Acipenser stellatus Pallas, 1771 -- valid -- sevruga, star sturgeon, stellate sturgeon
  Aclis conula Dall, 1927 -- valid
  Aclis egregia Dall, 1889 -- valid
  Aclis fernamdinae Dall, 1927 -- invalid
  Aclis georgiana Dall, 1927 -- valid
  Aclis hendersoni Dall, 1927 -- valid -- angular aclis
  Aclis lata Dall, 1889 -- valid -- wide aclis
  Aclis nucleata Dall, 1889 -- valid
  Aclis pendata Dall, 1927 -- valid
  Aclis pyramida Dall, 1927 -- valid
  Aclis rhyssa Dall, 1927 -- valid
  Aclis shepardiana Dall, 1919 -- valid
  Aclis stilifer Dall, 1927 -- valid
  Acmaea apicina Dall, 1879 -- valid
  Acmaea rosea Dall, 1872 -- valid
  Acmaea sybaritica Dall, 1871 -- valid
  Acmaeodera alicia Fall, 1899 -- valid
  Acmaeodera angelica Fall, 1899 -- valid
  Acmaeodera auritincta Fall, 1922 -- valid
  Acmaeodera aurora Fall, 1922 -- valid
  Acmaeodera bishopiana Fall, 1907 -- valid
  Acmaeodera bowditchi Fall, 1901 -- valid
  Acmaeodera carlota Fall, 1932 -- valid
  Acmaeodera conoidea Fall, 1899 -- valid
  Acmaeodera convicta Fall, 1899 -- valid
  Acmaeodera coquilletti Fall, 1899 -- valid
  Acmaeodera cuneata Fall, 1899 -- valid
  Acmaeodera daggetti Fall, 1899 -- invalid
  Acmaeodera disjuncta Fall, 1899 -- valid
  Acmaeodera dolorosa Fall, 1899 -- valid
  Acmaeodera dolorosa dolorosa Fall, 1899 -- valid
  Acmaeodera dolorosa liberta Fall, 1922 -- valid
  Acmaeodera fenyesi Fall, 1899 -- valid
  Acmaeodera griffithi Fall, 1899 -- valid
  Acmaeodera horni Fall, 1899 -- valid
  Acmaeodera jocosa Fall, 1899 -- valid
  Acmaeodera labyrinthica Fall, 1899 -- valid
  Acmaeodera larreae Fall, 1907 -- invalid
  Acmaeodera latiflava Fall, 1907 -- valid
  Acmaeodera latiflava latiflava Fall, 1907 -- valid
  Acmaeodera latiflava lineipicta Fall, 1932 -- valid
  Acmaeodera lucia Fall, 1901 -- invalid
  Acmaeodera morbosa Fall, 1899 -- valid
  Acmaeodera neglecta Fall, 1899 -- valid
  Acmaeodera nexa Fall, 1922 -- valid
  Acmaeodera postica Fall, 1899 -- invalid
  Acmaeodera prorsa Fall, 1899 -- valid
  Acmaeodera quadriseriata Fall, 1899 -- valid
  Acmaeodera recticollis Fall, 1899 -- valid
  Acmaeodera rubrosuffusa Fall, 1907 -- invalid
  Acmaeodera serena Fall, 1899 -- valid
  Acmaeodera subcyanea Fall, 1899 -- invalid
  Acmaeodera tenebricosa Fall, 1922 -- valid
  Acmaeodera vandykei Fall, 1899 -- valid
  Acolpenteron Fischthal and Allison, 1940 -- valid
  Acoma filiformis Allgen, 1929 -- invalid
  Acompocoris pygmaeus (Fallén, 1807) -- valid
  Acremodonta Marshall, 1983 -- valid
  Acricotopus nitidellus (Malloch, 1915) -- valid
  Acrocephalus aedon (Pallas, 1776) -- invalid -- Thick-billed Warbler
  Acronesia abina Hall, 1948 -- valid
  Acronesia anana Hall, 1948 -- valid
  Acronesia collini Hall, 1948 -- valid
  Acropora awi Wallace and Wolstenholme, 1998 -- valid
  Acropora azurea Veron and Wallace, 1984 -- valid
  Acropora batunai Wallace, 1997 -- valid
  Acropora bushyensis Veron and Wallace, 1984 -- valid
  Acropora chesterfieldensis Veron and Wallace, 1984 -- valid
  Acropora derawaensis Wallace, 1997 -- valid
  Acropora desalwii Wallace, 1994 -- valid
  Acropora donei Veron and Wallace, 1984 -- valid
  Acropora halmaherae Wallace and Wolstenholme, 1998 -- valid
  Acropora hoeksemai Wallace, 1997 -- valid
  Acropora indiana Wallace, 1994 -- valid
  Acropora indonesia Wallace, 1997 -- valid
  Acropora jacquelinae Wallace, 1994 -- valid
  Acropora kirstyae Veron and Wallace, 1984 -- valid
  Acropora kosurini Wallace, 1994 -- valid
  Acropora loisetteae Wallace, 1994 -- valid
  Acropora lokani Wallace, 1994 -- valid
  Acropora lovelli Veron and Wallace, 1984 -- valid
  Acropora plumosa Wallace and Wolstenholme, 1998 -- valid
  Acropora pocilloporina Wallace, 1994 -- valid
  Acropora russelli Wallace, 1994 -- valid
  Acropora simplex Wallace and Wolstenholme, 1998 -- valid
  Acropora solitaryensis Veron and Wallace, 1984 -- valid
  Acropora suharsonoi Wallace, 1994 -- valid
  Acropora sukarnoi Wallace, 1997 -- valid
  Acropora togianensis Wallace, 1997 -- valid
  Acropora torihalimeda Wallace, 1994 -- valid
  Acropora turaki Wallace, 1994 -- valid
  Acropora verweyi Veron and Wallace, 1984 -- valid
  Acropora willisae Veron and Wallace, 1984 -- valid
  Acropora yongei Veron and Wallace, 1984 -- valid
  Acryptolaria abies (Allman, 1877) -- valid
  Acryptolaria conferta (Allman, 1877) -- valid
  Acryptolaria conferta conferta (Allman, 1877) -- valid
  Acryptolaria gracilis (Allman, 1888) -- valid
  Acryptolaria longitheca (Allman, 1877) -- valid
  Acryptolaria pulchella (Allman, 1888) -- valid
  Actenobium Fall, 1905 -- invalid
  Actenobius Fall, 1905 -- valid
  Acteocina harpa (Dall, 1871) -- valid -- harp baby-bubble
  Acteocina magdalensis (Dall, 1919) -- valid -- Magdalena barrel-bubble
  Acteocina oldroydi Dall, 1925 -- valid
  Acteocina perplicatus Dall, 1889 -- valid
  Acteocina smirna Dall, 1919 -- valid
  Acteon danaida Dall, 1881 -- valid
  Acteon delicatus Dall, 1889 -- valid
  Acteon incisus Dall, 1881 -- valid
  Acteon juvenis Dall, 1927 -- valid
  Acteon lacunatus Dall, 1927 -- valid
  Acteon liostracoides Dall, 1927 -- valid
  Acteon melampoides Dall, 1881 -- valid
  Acteon parallelus Dall, 1927 -- valid
  Acteon particolor Dall, 1927 -- valid
  Acteon perforatus Dall, 1881 -- valid
  Acteon propius Dall, 1927 -- valid
  Acteon semicingulata Dall, 1927 -- valid
  Actinarctus neretinus Grimaldi de Zio, D'Addabbo Gallo, Morone De Lucia, Vaccarella and Grimaldi, 1982 -- valid
  Actinarctus physophorus Grimaldi de Zio, D'Addabbo Gallo, Morone De Lucia, Vaccarella and Grimaldi, 1982 -- valid
  Actinia Pallas, 1766 -- invalid
  Actinia doliolum Pallas, 1766 -- invalid
  Actinoptera discoidea (Fallen, 1814) -- valid
  Actinopus nattereri (Doleschall, 1871) -- valid
  Acutogordius acuminatus Miralles and Villalobos, 1998 -- valid
  Acutogordius americanus Miralles and Villalobos, 1998 -- valid
  Acutotyphlops Wallach, 1995 -- valid
  Acutotyphlops banaorum Wallach, Brown, Diesmos and Gee, 2007 -- valid
  Acutotyphlops kunuaensis Wallach, 1995 -- valid -- Kunua Blind Snake
  Adalaria albopapillosa (Dall, 1871) -- valid
  Addisonia Dall, 1882 -- valid
  Addisonia paradoxa Dall, 1882 -- valid
  Addisoniidae Dall, 1882 -- valid
  Adelonycteris gaumeri J. A. Allen, 1897 -- invalid
  Ademula McAtee and Malloch, 1926 -- valid
  Ademula abluta McAtee and Malloch, 1926 -- valid
  Ademula nubecula McAtee and Malloch, 1926 -- valid
  Ademula reticulata McAtee and Malloch, 1926 -- valid
  Adia cinerella (Fallen, 1825) -- valid
  Adipicola simpsoni (Marshall, 1900) -- valid
  Admete californica (Dall, 1908) -- valid -- California admete
  Admete circumcincta (Dall, 1873) -- invalid -- corded admete
  Admete microscopica (Dall, 1889) -- valid
  Admete microsoma (Dall, 1908) -- valid
  Admete middendorffiana Dall, 1884 -- invalid
  Admete regina Dall, 1911 -- valid -- noble admete
  Admete rhyssa Dall, 1919 -- invalid -- wrinkled admete
  Admete unalashkensis (Dall, 1873) -- invalid -- Aleutian admete
  Admete woodworthi Dall, 1905 -- invalid -- graceful admete
  Adoncholaimus oxyuroides (Allgen, 1934) -- valid
  Adrama biseta Malloch, 1939 -- valid
  Adrama centralis Malloch, 1939 -- invalid
  Adrama flavimana Malloch, 1939 -- valid
  Adrama fuscoapicata Malloch, 1939 -- valid
  Adrama papuaensis Malloch, 1939 -- invalid
  Adrama rufithorax Malloch, 1939 -- valid
  Adula diegensis (Dall, 1911) -- valid -- San Diego datemussel
  Aecothea aristata Malloch, 1919 -- invalid
  Aedes alongi Galliard and Ngu, 1947 -- valid
  Aedes aureostriatus (Doleschall, 1857) -- valid
  Aedes bejaranoi Martínez, Carcavallo and Prosen, 1960 -- valid
  Aedes caspius (Pallas, 1771) -- valid
  Aedes caspius caspius (Pallas, 1771) -- valid
  Aedes tonkinensis Galliard and Ngu, 1947 -- valid
  Aedes wardangensis Brust, Ballard, Driver, Hartley, Galway and Curran, 1998 -- valid
  Aega glacialis Tattersall, 1921 -- valid
  Aega loveni Bovallius, 1886 -- valid
  Aega nordenskioldii Bovallius, 1885C -- valid
  Aegialia convexa Fall, 1932 -- valid
  Aegialini D. Stallings and Turner, 1958 -- invalid
  Aegialoalaimus cylindricauda Allgen, 1933 -- valid
  Aegithina nigrolutea (G. F. L. Marshall, 1876) -- valid -- Marshall's Iora
  Aegithina tiphia cambodiana B. P. Hall, 1957 -- valid
  Aegithina tiphia deignani B. P. Hall, 1957 -- valid
  Aegoceros musimon Pallas, 1811 -- invalid
  Aelia americana Dallas, 1851 -- valid
  Aenictus gibbosus Dalla Torre, 1893 -- valid
  Aenictus gibbosus gibbosus Dalla Torre, 1893 -- valid
  Aeoloplides rotundipennis Wallace, 1955 -- valid
  Aeolothripinae Bagnall, 1913 -- valid
  Aeolothrips brevicornis Bagnall, 1915 -- valid
  Aeolothrips bucheti Bagnall, 1934 -- valid
  Aeolothrips ericae Bagnall, 1920 -- valid
  Aeolothrips intermedius Bagnall, 1934 -- valid
  Aeolothrips tenuicornis Bagnall, 1926 -- valid
  Aeorestes semotus (H. Allen, 1890) -- valid -- Hawaiian Hoary Bat
  Aepeomys fuscatus J. A. Allen, 1912 -- invalid -- Dusky Montane Mouse
  Aepyceros Sundevall, 1847 -- valid
  Aequipecten acanthodes (Dall, 1925) -- invalid -- thistle scallop
  Aequipecten heliacus (Dall, 1925) -- valid
  Aequipecten mayaguezensis Dall and Simpson, 1901 -- invalid
  Aequipecten phrygium (Dall, 1886) -- invalid
  Aeretes G. M. Allen, 1938 -- invalid
  Aeretes G. M. Allen, 1940 -- valid
  Aerodramus spodiopygius leucopygius (Wallace, 1864) -- valid
  Aeroppia mariehammerae Subías, Zaballos, Banda, Fontal-Cazalla & Nieves-Aldrey, 2004 -- valid
  Aerothyris Allan, 1939 -- valid
  Aesopus arestus Dall, 1919 -- valid
  Aesopus goforthi Dall, 1912 -- valid
  Aesopus myrmecoon Dall, 1916 -- valid -- ant-egg dovesnail
  Aesopus sanctus Dall, 1919 -- valid -- Santa Monica dovesnail
  Aethalops aequalis G. M. Allen, 1938 -- valid -- Bornean Pygmy Fruit Bat, Borneo Fruit Bat
  Aethecerinus Fall and Cockerell, 1907 -- valid
  Aethia cristatella (Pallas, 1769) -- valid -- Alcuela crestada, Crested Auklet, Starique cristatelle
  Aethia psittacula (Pallas, 1769) -- valid -- Parakeet Auklet, Starique perroquet
  Aethia pusilla (Pallas, 1811) -- valid -- Least Auklet, Starique minuscule
  Aethoglis hueti argenteus G.M. Allen, 1936 -- invalid
  Aethopyga siparaja flavostriata (Wallace, 1865) -- valid
  Aethus Dallas, 1851 -- valid
  Aethus longulus Dallas, 1851 -- invalid
  Aethus margo Dallas, 1851 -- invalid
  Aforia Dall, 1889 -- valid
  Aforia circinata (Dall, 1873) -- valid -- keeled aforia
  Aforia goodei (Dall, 1890) -- valid
  Afrocorynus Marshall, 1955 -- valid
  Afromysis bainbridgei O. Tattersall, 1957 -- valid
  Afromysis macropsis W. M. Tattersall, 1922 -- valid
  Afromysis ornata O. Tattersall, 1957 -- valid
  Afronothrus Wallwork, 1961 -- valid
  Afronothrus incisivus Wallwork, 1961 -- valid
  Afrotyphlops Broadley and Wallach, 2009 -- valid
  Afrotyphlops liberiensis (Hallowell, 1848) -- valid -- Guinea Blind Snake
  Afrotyphlops nanus Broadley and Wallach, 2009 -- valid -- Kenyan Dwarf Blind-snake
  Afrotyphlops nigrocandidus (Broadley and Wallach, 2000) -- valid
  Afrotyphlops schmidti laurenti (Wallach, 2003) -- valid
  Agabus ajax Fall, 1922 -- valid
  Agabus ancillus Fall, 1922 -- valid
  Agabus approximatus Fall, 1922 -- valid
  Agabus audeni Wallis, 1933 -- valid
  Agabus canadensis Fall, 1922 -- valid
  Agabus crassipes (Fall, 1922) -- valid
  Agabus fuscipennis ontarionis Fall, 1922 -- valid
  Agabus gelidus Fall, 1926 -- invalid
  Agabus johannis Fall, 1922 -- invalid
  Agabus kenaiensis Fall, 1926 -- invalid
  Agabus minnesotensis Wallis, 1933 -- invalid
  Agabus oblongulus Fall, 1922 -- valid
  Agabus ontarionis Fall, 1922 -- invalid
  Agabus palustris Wallis, 1926 -- invalid
  Agabus prroximatus Fall, 1922 -- invalid
  Agabus pseudoconfertus Wallis, 1926 -- invalid
  Agabus sharpi Fall, 1922 -- invalid
  Agabus triton Fall, 1922 -- invalid
  Agama africana (Hallowell, 1844) -- valid
  Agapema anona platensis Peigler and Kendall, 1993 -- valid
  Agapornis roseicollis catumbella B. P. Hall, 1952 -- valid
  Agarna cumulus (Haller, 1880) -- valid
  Agathidium alutaceum Fall, 1934 -- invalid
  Agathidium athabascanum Fall, 1934 -- valid
  Agathidium atronitens Fall, 1934 -- valid
  Agathidium brevisternum Fall, 1934 -- valid
  Agathidium cavisternum Fall, 1934 -- valid
  Agathidium columbianum Fall, 1934 -- valid
  Agathidium compressidens Fall, 1934 -- valid
  Agathidium contiguum Fall, 1934 -- invalid
  Agathidium depressum Fall, 1934 -- valid
  Agathidium dubitans Fall, 1934 -- valid
  Agathidium jasperanum Fall, 1934 -- valid
  Agathidium laetum Fall, 1934 -- valid
  Agathidium mollinum Fall, 1934 -- valid
  Agathidium omissum Fall, 1934 -- valid
  Agathidium parile Fall, 1934 -- invalid
  Agathidium picipes Fall, 1934 -- valid
  Agathidium rubellum Fall, 1934 -- valid
  Agathidium rusticum Fall, 1934 -- valid
  Agathidium virile Fall, 1901 -- valid
  Agathymus alliae (D. Stallings and Turner, 1957) -- valid -- Mojave Giant-Skipper
  Agathymus alliae alliae (D. Stallings and Turner, 1957) -- valid
  Agathymus aryxna baueri (D. Stallings and Turner, 1954) -- invalid
  Agathymus baueri (D. Stallings and Turner, 1954) -- valid
  Agathymus baueri baueri (D. Stallings and Turner, 1954) -- valid
  Agathymus baueri freemani D. Stallings and Turner, 1960 -- valid
  Agathymus estelleae (D. Stallings and Turner, 1958) -- valid
  Agathymus neumoegeni carlsbadensis (D. Stallings and Turner, 1957) -- valid
  Agathymus neumoegeni florenceae (D. Stallings and Turner, 1957) -- valid
  Agathymus neumoegeni judithae (D. Stallings and Turner, 1957) -- valid
  Agathymus remingtoni (D. Stallings and Turner, 1958) -- valid -- Coahuila Giant-Skipper
  Agatrix agassizii (Dall, 1889) -- valid -- Agassiz's nutmeg
  Agatrix smithii (Dall, 1888) -- invalid -- Smith's nutmeg
  Agelenopsis potteri (Blackwall, 1846) -- valid
  Aglaophenia acacia Allman, 1883 -- valid
  Aglaophenia acanthocarpa Allman, 1876 -- valid
  Aglaophenia apocarpa Allman, 1877 -- valid
  Aglaophenia constricta Allman, 1877 -- valid
  Aglaophenia latecarinata Allman, 1877 -- valid
  Aglaophenia laxa Allman, 1876 -- valid
  Aglaophenia perforata Allman, 1885 -- invalid
  Aglaophenia perpusilla Allman, 1877 -- invalid
  Aglaophenia rhynchocarpa Allman, 1877 -- valid
  Aglaophenia rigida Allman, 1877 -- invalid
  Agnocoris rubicundus (Fallén, 1807) -- valid
  Agoliinus incommunis (Fall, 1932) -- valid
  Agoliinus plutonicus (Fall, 1907) -- valid
  Agonum anchomenoides Randall, 1838 -- valid
  Agramma laetum (Fallén, 1807) -- valid
  Agramma laetum laetum (Fallén, 1807) -- valid
  Agrilus gibbicollis Fall, 1901 -- valid
  Agrilus illectus Fall, 1901 -- valid
  Agrilus snowi Fall, 1905 -- valid
  Agrilus strigicollis Fall, 1912 -- invalid
  Agrilus townsendi Fall, 1907 -- valid
  Agrilus transimpressus Fall, 1925 -- valid
  Agrilus vittaticollis (Randall, 1838) -- valid
  Agriocleptes salvatorianus Carcavallo and Martínez, 1960 -- valid
  Agriodesma Dall, 1916 -- invalid
  Agriopoma Dall, 1902 -- valid
  Agriopoma texasianum (Dall, 1892) -- valid -- texas venus
  Agroeca brunnea (Blackwall, 1833) -- valid
  Agromyza abbreviata Malloch, 1913 -- invalid
  Agromyza abnormalis Malloch, 1913 -- invalid
  Agromyza affinis Malloch, 1913 -- invalid
  Agromyza albidohalterata Malloch, 1916 -- invalid
  Agromyza ambigua Fallen, 1823 -- valid
  Agromyza angulicornis Malloch, 1918 -- invalid
  Agromyza aprilina Malloch, 1915 -- valid
  Agromyza aristata Malloch, 1915 -- valid -- agromyze de l'orme, elm agromyzid leafminer
  Agromyza assimilis Malloch, 1918 -- invalid
  Agromyza borealis Malloch, 1913 -- invalid
  Agromyza brevicostalis Malloch, 1913 -- invalid
  Agromyza burgessi Malloch, 1913 -- invalid
  Agromyza caerulea Malloch, 1913 -- invalid
  Agromyza canadensis Malloch, 1913 -- valid
  Agromyza citreifrons Malloch, 1913 -- invalid
  Agromyza coloradensis Malloch, 1913 -- invalid
  Agromyza congregata Malloch, 1913 -- invalid
  Agromyza coniceps Malloch, 1915 -- invalid
  Agromyza coquilletti Malloch, 1913 -- invalid
  Agromyza deceptiva Malloch, 1918 -- invalid
  Agromyza discalis Malloch, 1913 -- invalid
  Agromyza dubitata Malloch, 1913 -- invalid
  Agromyza felti Malloch, 1914 -- invalid
  Agromyza flaveola Fallen, 1823 -- invalid
  Agromyza fragariae Malloch, 1913 -- valid
  Agromyza fumicosta Malloch, 1914 -- invalid
  Agromyza gibsoni Malloch, 1915 -- invalid
  Agromyza holti Malloch, 1924 -- invalid
  Agromyza illinoensis Malloch, 1934 -- invalid
  Agromyza imperfecta Malloch, 1934 -- invalid
  Agromyza inaequalis Malloch, 1914 -- invalid
  Agromyza inconspicua Malloch, 1913 -- invalid
  Agromyza indecisa Malloch, 1913 -- invalid
  Agromyza indecora Malloch, 1918 -- invalid
  Agromyza isolata Malloch, 1913 -- valid
  Agromyza kincaidi Malloch, 1913 -- valid
  Agromyza longispinosa Malloch, 1913 -- invalid
  Agromyza maculosa Malloch, 1913 -- invalid
  Agromyza marginalis Malloch, 1913 -- invalid
  Agromyza minima Malloch, 1913 -- invalid
  Agromyza nigrisquama Malloch, 1916 -- invalid
  Agromyza nitida Malloch, 1913 -- invalid
  Agromyza obscurella Fallen, 1823 -- invalid
  Agromyza pallidiseta Malloch, 1924 -- valid
  Agromyza pleuralis Malloch, 1914 -- invalid
  Agromyza quadrisetosa Malloch, 1913 -- invalid
  Agromyza reptans Fallen, 1823 -- valid
  Agromyza reverberata Malloch, 1924 -- invalid
  Agromyza riparia Malloch, 1915 -- invalid
  Agromyza salicis Malloch, 1913 -- invalid
  Agromyza similata Malloch, 1918 -- invalid
  Agromyza subangulata Malloch, 1916 -- invalid
  Agromyza subinfumata Malloch, 1915 -- invalid
  Agromyza subnigripes Malloch, 1913 -- valid
  Agromyza subvirens Malloch, 1915 -- invalid
  Agromyza texana Malloch, 1913 -- invalid
  Agromyza vagans Fallen, 1823 -- invalid
  Agromyza variata Malloch, 1913 -- invalid
  Agromyza vibrissata Malloch, 1913 -- invalid
  Agromyza waltoni Malloch, 1913 -- invalid
  Agromyza websteri Malloch, 1913 -- invalid
  Agromyza winnemanae Malloch, 1913 -- invalid
  Agromyza youngi Malloch, 1914 -- invalid
  Agropsar sturninus (Pallas, 1776) -- valid -- Daurian Starling
  Agyrtes similis Fall, 1937 -- valid
  Ahasverus guerini (Allibert, 1847) -- invalid
  Ahliesaurus Bertelsen, Krefft and Marshall, 1976 -- valid
  Ahliesaurus berryi Bertelsen, Krefft and Marshall, 1976 -- valid
  Ahliesaurus brevis Bertelsen, Krefft and Marshall, 1976 -- valid
  Akodon affinis (J. A. Allen, 1912) -- valid -- Colombian Grass Mouse, Cordillera Occidental Akodont
  Akodon hershkovitzi Patterson, Gallardo and Freas, 1984 -- invalid -- Hershkovitz's Grass Mouse
  Akodon irazu J. A. Allen, 1904 -- invalid
  Akodon lutescens J. A. Allen, 1901 -- valid -- Altiplano Akodont
  Akodon urichi J. A. Allen and Chapman, 1897 -- invalid -- Northern Grass Mouse
  Alabina Dall, 1902 -- invalid
  Alaimonemella Allgen, 1935 -- valid
  Alaimonemella simplex Allgen, 1935 -- valid
  Alaskozetes antarcticus intermedius Wallwork, 1967 -- valid
  Albericus exclamitans Kraus and Allison, 2005 -- invalid
  Albericus murritus Kraus and Allison, 2009 -- invalid
  Albericus sanguinopictus Kraus and Allison, 2005 -- invalid
  Alberprosenia Martínez and Carcavallo, 1977 -- valid
  Alberprosenia goyovargasi Martínez and Carcavallo, 1977 -- valid
  Alberproseniini Martínez and Carcavallo, 1977 -- valid
  Albia caerula Marshall, 1927 -- valid
  Alburnus tarichi (Güldenstädt in Pallas, 1814) -- valid
  Alcaeorrhynchus grandis (Dallas, 1851) -- valid
  Alcedo aenea Pallas, 1764 -- invalid
  Alcedo cristata Pallas, 1764 -- invalid -- Malachite Kingfisher
  Alcedo cristata cristata Pallas, 1764 -- invalid
  Alcedo maxima Pallas, 1769 -- invalid
  Alcelaphus buselaphus (Pallas, 1766) -- valid -- Hartebeest, hartebeest
  Alcelaphus buselaphus buselaphus (Pallas, 1766) -- valid
  Alcicornis Maccallum, 1917 -- valid
  Alcyonidium polyoum Hassall -- valid
  Alcyonium palmatum Pallas, 1766 -- valid
  Alcyonium schlosseri Pallas, 1766 -- invalid
  Alderia Allman, 1845 -- valid
  Alderia amphibia Allman, 1845 -- invalid
  Alectrias alectrolophus (Pallas, 1814) -- valid -- stone cockscomb
  Algamorda Dall, 1918 -- valid
  Algaroda Dall, 1918 -- invalid
  Alienacanthomysis macropsis (W. M. Tattersall, 1932) -- valid
  Alinea berengerae (Miralles, 2006) -- invalid
  Allactaga bullata G. M. Allen, 1925 -- valid -- Gobi Jerboa
  Allenanicia lateropili (Allen, 1926) -- valid
  Allenanicia sinipalpis (Allen, 1926) -- valid
  Allenhyphes flinti (Allen, 1973) -- valid
  Allenhyphes michaeli (Allen, 1978) -- invalid
  Allenhyphes nanus (Allen, 1967) -- valid
  Allenhyphes vescus (Allen, 1978) -- valid
  Allgenia kornoeensis (Allgen, 1929) -- valid
  Allienacanthomysis macropsis (W. M. Tattersall, 1932) -- invalid
  Alliopsis angustitarsis (Malloch, 1920) -- valid
  Alliopsis brevitarsis (Malloch, 1918) -- valid
  Alliopsis constrictor (Malloch, 1920) -- valid
  Alliopsis littoralis (Malloch, 1920) -- valid
  Alliopsis obesa Malloch, 1919 -- valid
  Alliopsis silvestris (Fallen, 1824) -- valid
  Alliopsis tinctipennis (Malloch, 1929) -- valid
  Allochernes bactrinus Dashdamirov and Schawaller, 1995 -- valid
  Allochernes contarinii Callaini, 1991 -- valid
  Allochthonius sichuanensis (Schawaller, 1995) -- valid
  Allocosa retenta (Gertsch & Wallace, 1935) -- valid
  Allocricetulus curtatus (G. M. Allen, 1925) -- valid -- Mongolian Hamster
  Allodia subelata Malloch, 1923 -- valid
  Alloeostyliphora Curini-Galletti, Oggiano and Casu, 2001 -- valid
  Alloeostyliphora mirabilis Curini-Galletti, Oggiano and Casu, 2001 -- valid
  Allogalumna pellucida Wallwork, 1965 -- valid
  Allognotha semivitta Malloch, 1918 -- invalid
  Allomyella Malloch, 1923 -- valid
  Allomyella brevipennis Malloch, 1923 -- valid
  Allomyella unguiculata (Malloch, 1919) -- valid
  Allomyia unguiculata Malloch, 1919 -- invalid
  Allonothrus ghanensis Wallwork, 1961 -- invalid
  Allonothrus monodactylus Wallwork, 1960 -- valid
  Allonothrus russeolus Wallwork, 1960 -- valid
  Allonothrus russeolus russeolus Wallwork, 1960 -- valid
  Allopauropus alsiosus Remy and Balland, 1958 -- invalid
  Allopauropus distinctus Bagnall in Remy, 1936 -- invalid
  Allopauropus littoralis Bagnall, 1935 -- valid
  Allopauropus pseudomillotianus Remy and Balland, 1958 -- invalid
  Allopauropus remyi (Bagnall, 1935) -- invalid
  Allopauropus stepheni Bagnall, 1935 -- valid
  Allopeza granulipes (Fallou, 1891) -- valid
  Alloscirtetica danuncia Vivallo, 2009 -- valid
  Alloscirtetica gelida Vivallo, 2009 -- valid
  Alloscirtetica vagabunda Vivallo, 2003 -- valid
  Alopecosa barbipes (Sundevall, 1833) -- invalid
  Alopecosa barbipes barbipes (Sundevall, 1833) -- invalid
  Alouatta nigra J. A. Allen, 1900 -- invalid
  Alouatta palliata matagalpae J. A. Allen, 1908 -- invalid
  Alouatta seniculus bogotensis J. A. Allen, 1914 -- invalid
  Alouatta seniculus caquetensis J. A. Allen, 1914 -- invalid
  Alouatta seniculus caucensis J. A. Allen, 1904 -- invalid
  Alouatta seniculus rubicunda J. A. Allen, 1904 -- invalid
  Alpaida grayi (Blackwall, 1863) -- valid
  Alpheoides laevis (Randall, 1840) -- invalid
  Alpheus dispar Randall, 1840 -- valid
  Alpheus laevis Randall, 1840 -- invalid
  Alpheus stephensoni D. M. Banner & Smalley, 1969 -- valid -- Queensland snapping shrimp
  Alpinoscincus Slavenko, Tamar, Tallowin, Kraus, Allison, Carranza and Meiri, 2021 -- valid
  Alpinoscincus alpinus (Greer, Allison and Cogger, 2005) -- valid
  Alpinoscincus subalpinus (Greer, Allison and Cogger, 2005) -- valid
  Alsodes gargola Gallardo, 1970 -- valid
  Alsodes gargola gargola Gallardo, 1970 -- invalid
  Alsodes tumultuosus Veloso, Iturra-Constant and Galleguillos-G., 1979 -- valid
  Alsophylax pipiens (Pallas, 1827) -- valid
  Althos pallipes (Dallas, 1852) -- valid
  Althos pectoralis (Dallas, 1852) -- valid
  Altica blanchardi Fall, 1920 -- valid
  Altica convicta Fall, 1910 -- valid
  Altica cupreola Fall, 1926 -- valid
  Altica heucherae Fall, 1920 -- valid
  Altica humboldtensis Fall, 1922 -- valid
  Altica litigata Fall, 1910 -- valid
  Altica ovulata Fall, 1910 -- valid
  Altica probata Fall, 1910 -- valid
  Altica purpurea Fall, 1920 -- valid
  Altica suspecta Fall, 1910 -- valid
  Altica sylvia Malloch, 1919 -- valid
  Altica testacea Fall, 1910 -- valid
  Altica vialis Fall, 1920 -- valid
  Alticola semicanus (G. M. Allen, 1924) -- valid -- Mongolian Mountain Vole, Mongolian Silver Vole
  Altrichthys Allen, 1999 -- valid
  Altrichthys curatus Allen, 1999 -- valid
  Alurnus lansbergei Sallé, 1849 -- valid
  Alvania acuticostata (Dall, 1889) -- valid
  Alvania alaskana Dall, 1886 -- valid
  Alvania aurivilli Dall, 1886 -- valid
  Alvania campta (Dall, 1927) -- valid
  Alvania canonica (Dall, 1927) -- valid
  Alvania castanella Dall, 1886 -- valid
  Alvania jeffreysi (Waller, 1864) -- valid
  Alvania lampra (Dall, 1927) -- valid
  Alvania precipitata (Dall, 1889) -- valid
  Alvania purpurea Dall, 1871 -- valid
  Alvinocaris costaricensis Martin, Wall, Shank, Cha, Seid & Rouse, 2018 -- valid
  Alydus apicalis Dallas, 1852 -- invalid
  Alyssontini Dalla Torre, 1897 -- valid
  Amaea mitchelli (Dall, 1896) -- valid
  Amaea retifera (Dall, 1889) -- valid -- reticulate wentletrap
  Amandava amandava flavidiventris (Wallace, 1864) -- valid
  Amaurobius similis (Blackwall, 1861) -- valid
  Amauromyza abnormalis (Malloch, 1913) -- valid
  Amauromyza albidohalterata (Malloch, 1916) -- valid
  Amauromyza indecisa (Malloch, 1913) -- valid
  Amauromyza maculosa (Malloch, 1913) -- valid
  Amauromyza pleuralis (Malloch, 1914) -- valid
  Amauromyza subinfumata (Malloch, 1915) -- valid
  Amauropsis purpurea Dall, 1871 -- valid
  Amaurornis moluccanus (Wallace, 1865) -- invalid
  Amaurornis olivacea moluccana (Wallace, 1865) -- valid
  Amaurosoma atripes Malloch, 1931 -- invalid
  Amaurosoma bispinosa Malloch, 1920 -- invalid
  Amaurosoma katmaiensis Malloch, 1920 -- invalid
  Amaurosoma nuda Malloch, 1922 -- invalid
  Amaurosoma pallidipes Malloch, 1922 -- invalid
  Amaurosoma unispinosa Malloch, 1920 -- invalid
  Amaurospiza carrizalensis Lentino & Restall, 2003 -- valid -- Carrizal Seedeater
  Amblonoxia bidentata (Fall, 1932) -- valid
  Amblonoxia fieldi (Fall, 1908) -- valid
  Amblyeleotris bellicauda Randall, 2004 -- valid
  Amblyeleotris biguttata Randall, 2004 -- valid
  Amblyeleotris downingi Randall, 1994 -- valid
  Amblyeleotris ellipse Randall, 2004 -- valid
  Amblyeleotris harrisorum Mohlmann and Randall, 2002 -- valid
  Amblyeleotris katherine Randall, 2004 -- valid
  Amblyeleotris marquesas Mohlmann and Randall, 2002 -- valid
  Amblyeleotris rubrimarginata Mohlmann and Randall, 2002 -- valid
  Amblyeleotris stenotaeniata Randall, 2004 -- valid
  Amblyeleotris triguttata Randall, 1994 -- valid
  Amblyglyphidodon batunai Allen, 1995 -- valid
  Amblyglyphidodon flavilatus Allen and Randall, 1980 -- valid
  Amblyglyphidodon indicus Allen and Randall, 2002 -- valid
  Amblyglyphidodon melanopterus Allen and Randall, 2002 -- valid
  Amblygnathus evansi Ball and Maddison, 1987 -- valid
  Amblyomma aureolatum (Pallas, 1772) -- valid
  Amblyomma grossum (Pallas, 1772) -- invalid
  Amblyops antarctica O. Tattersall, 1955 -- valid
  Amblyops durbani O. Tattersall, 1955 -- valid
  Amblyops kempi (Holt and W. M. Tattersall, 1905) -- valid
  Amblyops tenuicauda W. M. Tattersall, 1911 -- valid
  Amblyopsoides O. Tattersall, 1955 -- valid
  Amblyopsoides obtusa O. Tattersall, 1955 -- valid
  Amblyopsoides ohilinii (W. M. Tattersall, 1951) -- valid
  Amblyospiza Sundevall, 1850 -- valid
  Amblypomacentrus clarus Allen and Adrim, 2000 -- valid
  Amblystoma bicolor Hallowell, 1858 -- invalid
  Amblystoma jeffersonianum fuscum Hallowell, 1858 -- invalid
  Amblystoma jeffersonianum laterale Hallowell, 1856 -- invalid
  Amblystoma laterale Hallowell, 1856 -- invalid
  Ambystoma bicolor Hallowell, 1858 -- invalid
  Ambystoma fuscum Hallowell, 1858 -- invalid
  Ambystoma jeffersonianum fuscum Hallowell, 1858 -- invalid
  Ambystoma laterale Hallowell, 1856 -- valid -- Blue-spotted Salamander, salamandre ŕ points bleus
  Ambystoma mavortium nebulosum Hallowell, 1853 -- invalid -- Arizona Tiger Salamander
  Ambystoma nebulosum Hallowell, 1853 -- invalid
  Ambystoma tigrinum nebulosum Hallowell, 1853 -- invalid -- Arizona Tiger Salamander
  Amegilla custos (Dalla Torre, 1896) -- invalid
  Amegilla gallica (Dalla Torre and Friese, 1895) -- invalid
  Ameivula nativo (Rocha, Bergallo and Peccinini-Seale, 1997) -- valid
  Americamysis bigelowi (W. M. Tattersall, 1926) -- valid
  Americina Malloch, 1923 -- valid
  Ametastegia glabrata (Fallen) -- valid -- dock sawfly
  Ametropus ammophilus Allen and Edmunds, 1976 -- valid
  Ami bladesi Pérez-Miles, Gabriel & Gallon, 2008 -- valid
  Ami yupanquii Pérez-Miles, Gabriel & Gallon, 2008 -- valid
  Amicula amiculata (Pallas, 1787) -- valid
  Amiculus Dégallier and Bello, 2008 -- valid
  Amiculus major (Dégallier, 1994) -- valid
  Amietophrynus maculatus (Hallowell, 1854) -- invalid
  Amietophrynus tihamicus (Balletto and Cherchi, 1973) -- invalid
  Amiota minor (Malloch, 1921) -- valid
  Amiota setigera Malloch, 1924 -- valid
  Amiota steganoptera Malloch, 1926 -- valid
  Ammodramus maritimus peninsulae J. A. Allen, 1888 -- valid
  Ammodramus maritimus sennetti J. A. Allen, 1888 -- valid
  Ammodramus nelsoni J. A. Allen, 1875 -- valid -- bruant de Nelson, Nelson's Sharp-tailed Sparrow, Nelson's Sparrow
  Ammodramus nelsoni nelsoni J. A. Allen, 1875 -- valid
  Ammodytes hexapterus Pallas, 1814 -- valid -- Pacific sand lance
  Ammodytoides kimurai Ida and Randall, 1993 -- valid
  Ammodytoides leptus Collette and Randall, 2000 -- valid
  Ammodytoides pylei Randall, Ida and Earle, 1994 -- valid
  Ammolabrus Randall and Carlson, 1997 -- valid
  Ammolabrus dicrus Randall and Carlson, 1997 -- valid
  Ammomanes cinctura arenicolor (Sundevall, 1850) -- valid
  Ammophila guerinii Dalla Torre, 1897 -- invalid
  Ammophila indica Dalla Torre, 1897 -- invalid
  Ammophila turcestanica Dalla Torre, 1897 -- invalid
  Ammophila walkeri Dalla Torre, 1897 -- invalid
  Ammospermophilus leucurus peninsulae (J. A. Allen, 1893) -- valid
  Ammospiza caudacuta nelsoni (J. A. Allen, 1875) -- invalid
  Ammospiza maritima peninsulae (J. A. Allen, 1888) -- invalid
  Ammospiza maritima sennetti (J. A. Allen, 1888) -- invalid
  Ammothea nidiuscula Hall, 1913 -- invalid
  Ammotragus lervia (Pallas, 1777) -- valid -- aoudad, Barbary sheep, Barbary Sheep
  Ammotragus lervia lervia (Pallas, 1777) -- valid
  Amnestus Dallas, 1851 -- valid
  Amnicola aldrichi (Call and Beecher, 1886) -- invalid -- Hoosier Amnicola
  Amnirana albolabris (Hallowell, 1856) -- valid
  Amobia distorta (Allen, 1926) -- valid
  Amobia hinei (Allen, 1926) -- valid
  Amorbus Dallas, 1852 -- valid
  Amorbus abdominalis Dallas, 1852 -- valid
  Amorbus alternatus Dallas, 1852 -- valid
  Amorbus hirticulus Dallas, 1852 -- valid
  Amphaces Dallas, 1851 -- valid
  Amphaces ferruginea Dallas, 1851 -- valid
  Amphaces proxima Dallas, 1851 -- valid
  Amphaces virescens Dallas, 1852 -- invalid
  Ampheremus Fall, 1917 -- valid
  Ampheremus cylindricollis Fall, 1917 -- valid
  Amphiascoides bulbiseta Pallares, 1975 -- valid
  Amphicerus cornutus (Pallas, 1772) -- valid
  Amphichaeta sannio Kallstenius, 1892 -- valid
  Amphicosmus arizonicus Hall, 1975 -- valid
  Amphiesma bitaeniata (Wall, 1925) -- invalid
  Amphiesma bitaeniatum (Wall, 1925) -- invalid
  Amphiesma flavipunctatum Hallowell, 1861 -- invalid
  Amphiesma venningi (Wall, 1910) -- invalid
  Amphiesma xenura (Wall, 1907) -- invalid
  Amphiglossus meva Miralles, Raselimanana, Rakotomalala, Vences and Vieites, 2011 -- invalid
  Amphilochoides brunneus Della Valle, 1893 -- valid
  Amphilochus neapolitanus Della Valle, 1893 -- valid
  Amphilophus nourissati (Allgayer, 1989) -- valid
  Amphinome rostrata (Pallas, 1766) -- valid
  Amphioxus elongatus Sundevall, 1852 -- invalid
  Amphioxus lanceolatus (Pallas, 1774) -- invalid
  Amphiprion akindynos Allen, 1972 -- valid -- Barrier Reef anemonefish
  Amphiprion chagosensis Allen, 1972 -- valid -- Chagos anemonefish
  Amphiprion fuscocaudatus Allen, 1972 -- valid -- Seychelles anemonefish
  Amphiprion latifasciatus Allen, 1972 -- valid -- Madagascar anemonefish
  Amphiprion leucocranos Allen, 1973 -- invalid
  Amphiprion leucokranos Allen, 1973 -- valid -- whitebonnet anemonefish
  Amphiprion omanensis Allen and Mee in Allen, 1991 -- valid
  Amphiprion sandaracinos Allen, 1972 -- valid -- orange anemonefish, yellow clownfish, yellow skunk clownfish
  Amphisbetia episcopus (Allman, 1876) -- valid
  Amphissa bicolor Dall, 1892 -- valid -- two-tone amphissa
  Amphissa columbiana Dall, 1916 -- valid -- wrinkled amphissa
  Amphissa cymata Dall, 1916 -- valid -- wavy amphissa
  Amphissa reticulata Dall, 1916 -- valid -- reticulate amphissa
  Amphissa versicolor Dall, 1871 -- valid -- variegate amphissa
  Ampumixis dispar (Fall, 1925) -- valid
  Amsichthys knighti (Allen, 1987) -- valid
  Amygdalum pallidulum (Dall, 1916) -- valid -- pallid papermussel
  Amyssonotum rastratum flexum McAtee and Malloch, 1933 -- valid
  Anacaena signaticollis Fall, 1924 -- valid
  Anacanthobatis ori (Wallace, 1967) -- valid
  Anachis dicomata Dall, 1889 -- invalid
  Anachis similis Dall, 1889 -- valid
  Anacropora reticulata Veron and Wallace, 1984 -- valid
  Anaides lugubris (Hallowell, 1849) -- invalid
  Anametis subfusca Fall, 1907 -- valid
  Anampses chrysocephalus Randall, 1958 -- valid
  Anampses femininus Randall, 1972 -- valid
  Anampses lineatus Randall, 1972 -- valid
  Anampses melanurus lineatus Randall, 1972 -- invalid
  Anampses rubrocaudatus Randall, 1958 -- invalid
  Anaphothrips cameroni (Bagnall, 1919) -- valid
  Anaplectes rubriceps (Sundevall, 1850) -- valid
  Anaplectes rubriceps rubriceps (Sundevall, 1850) -- valid
  Anaplectus porosus Allen and Noffsinger, 1968 -- valid
  Anaplectus similis Allen and Noffsinger, 1968 -- valid
  Anaplectus varicaudatus Allen and Noffsinger, 1968 -- valid
  Anarhichas latifrons Steenstrup and Hallgrimsson in Steenstrup, 1876 -- invalid
  Anarhichas latifrons Steenstrup and Hallgrimsson in Steenstrup, 1876 -- invalid
  Anarhichas orientalis Pallas, 1814 -- valid -- Bering wolffish
  Anarostomoides petersoni Malloch, 1916 -- invalid
  Anastoechus deserticola Hall, 1956 -- invalid
  Anastoechus hessei Hall, 1958 -- valid
  Anastoechus leucothrix Hall and Evenhuis, 1981 -- valid
  Anastrepha fernandezi Caraballo, 1985 -- valid
  Anastrepha margarita Caraballo, 1985 -- valid
  Anastrepha pittieri Caraballo, 1985 -- valid
  Anatolanthias Anderson, Parin and Randall, 1990 -- valid
  Anatolanthias apiomycter Anderson, Parin and Randall, 1990 -- valid
  Anatopynia centralis Malloch, 1934 -- invalid
  Anatopynia decolorata Malloch -- invalid
  Anchialina flemingi W. M. Tattersall, 1943 -- valid
  Anchialina zimmeri W. M. Tattersall, 1951 -- valid
  Anchimolgidae Humes & Boxshall, 1996 -- valid
  Ancistrobasis Dall, 1889 -- valid
  Ancistrobasis depressa (Dall, 1889) -- valid -- depressed basilissa
  Ancistrolepis Dall, 1894 -- valid
  Ancistrolepis beringianus Dall, 1919 -- valid
  Ancistrolepis eucosmius (Dall, 1891) -- valid -- corded whelk
  Ancistrolepis magna (Dall, 1895) -- valid
  Ancistronycha neglecta (Fall, 1919) -- invalid
  Ancylometes birabeni (Carcavallo & Martínez, 1961) -- valid
  Ancystropus aequatorialis Estrada-Peńa, Ballesta and Ibańez, 1992 -- valid
  Andinobates tolimensis (Bernal-Bautista, Luna-Mora, Gallego and Quevedo-Gil, 2007) -- valid
  Andrena banksi Malloch, 1917 -- valid
  Andrena canadensis Dalla Torre, 1896 -- valid
  Andrena canadensis canadensis Dalla Torre, 1896 -- invalid
  Andrena flexa Malloch, 1917 -- valid
  Andrena gwynana testacea Dalla Torre, 1877 -- invalid
  Andrena interrogationis Dalla Torre, 1884 -- invalid
  Andrena lepeletieri Dalla Torre, 1896 -- invalid
  Andrena radoszkowski Dalla Torre, 1896 -- invalid
  Andrena radoszkowskii Dalla Torre, 1896 -- invalid
  Andrena regularis Malloch, 1917 -- valid
  Andrena robertsonii Dalla Torre, 1896 -- valid
  Andriscus armatus (Dallas, 1851) -- valid
  Aneides lugubris (Hallowell, 1849) -- valid -- Arboreal Salamander, Salamandra arbórea
  Aneides lugubris lugubris (Hallowell, 1849) -- invalid
  Anelosimus placens (Blackwall, 1877) -- valid
  Anevrina macateei (Malloch, 1913) -- valid
  Angilia saotomae Sallier Dupin, 1976 -- invalid
  Angilia saotomae Sallier Dupin, 1976 -- invalid
  Anicia campestris (Fallen, 1820) -- valid
  Anicia inermis (Allen, 1926) -- valid
  Anicia tessellata (Allen, 1926) -- valid
  Anilany helenae (Vallan, 2000) -- valid
  Anilocra acuminata Haller, 1880 -- valid
  Anilocra guinensis Bovallius, 1887 -- valid
  Anilocra hedenborgi Bovallius, 1887 -- valid
  Animomyia smithii (Pearsall, 1910) -- valid
  Anischys Dallas, 1851 -- valid
  Anisodonta carolina Dall, 1900 -- valid -- Carolina sportella
  Anisomysis bifurcata W. M. Tattersall, 1912 -- valid
  Anisomysis incisa W. M. Tattersall, 1936 -- valid
  Anisomysis xenops (W. M. Tattersall, 1943) -- valid
  Anisonyches mauritianus Grimaldi de Zio, D'Addabbo Gallo, Morone De Lucia and Daddabbo, 1988 -- valid
  Anisorhynchodemus joubini (Hallez, 1894) -- valid
  Anisoscelis marginellus (Dallas, 1852) -- valid
  Anisotoma fusciclava Fall, 1925 -- invalid
  Anisotoma puritana Fall, 1925 -- invalid
  Anisotoma sculpturata Fall, 1910 -- invalid
  Annectacarus insculptus Wallwork, 1962 -- valid
  Annectacarus sejugatus Wallwork, 1962 -- valid
  Anobiopsis Fall, 1905 -- valid
  Anobiopsis sericans Fall, 1905 -- valid
  Anodonta assimilis Gallenstein, 1852 -- invalid
  Anodonta bahlikiana Pallary, 1939 -- invalid
  Anodonta deplanata Gallenstein, 1852 -- invalid
  Anodonta fuscata Gallenstein, 1852 -- invalid
  Anodonta grossa Gallenstein, 1852 -- invalid
  Anodonta latissima Gallenstein, 1852 -- invalid
  Anodonta platyrhincha Gallenstein, 1852 -- invalid
  Anodonta somersii Call, 1880 -- invalid
  Anodonta vetula Gallenstein, 1852 -- invalid
  Anodontites aurora Marshall, 1915 -- invalid
  Anodontites colombiensis Marshall, 1922 -- valid
  Anodontites darochai Marshall, 1915 -- invalid
  Anodontites elfa Marshall, 1928 -- invalid
  Anodontites guanarensis Marshall, 1927 -- valid
  Anodontites irisans Marshall, 1926 -- invalid
  Anodontites mansfieldi Marshall, 1928 -- invalid
  Anodontites palmeri Marshall, 1930 -- invalid
  Anodontites pittieri Marshall, 1922 -- valid
  Anodontites salmonea Marshall, 1915 -- invalid
  Anodontites schadei Marshall, 1934 -- invalid
  Anogdus fusciclavus (Fall, 1925) -- valid
  Anogdus puritanus (Fall, 1925) -- valid
  Anogdus sculpturatus (Fall, 1910) -- valid
  Anogdus superans (Fall, 1910) -- valid
  Anolis acutus Hallowell, 1857 -- valid -- Saint Croix's Anole, Sharp Anole, St. Croix Anole
  Anolis angusticeps Hallowell, 1856 -- valid -- Cuban Twig Anole
  Anolis cupreus Hallowell, 1860 -- valid -- Copper Anole
  Anolis cupreus cupreus Hallowell, 1860 -- valid
  Anolis sericeus Hallowell, 1856 -- valid -- Anolis sedoso, Silky Anole
  Anolis tropidogaster Hallowell, 1856 -- valid -- Tropical Anole
  Anomalocardia leptalea (Dall, 1894) -- valid
  Anomalodesmacea Dall, 1889 -- valid
  Anomalurops chapini J. A. Allen, 1922 -- invalid
  Anomia rubra Pallas, 1776 -- invalid
  Anomochilidae Cundall, Wallach and Rossman, 1993 -- valid -- Dwarf Pipe Snakes
  Anomoea nigrithorax Malloch, 1939 -- invalid
  Anomoia nigrithorax (Malloch, 1939) -- valid
  Anomoia quadrata Malloch, 1939 -- invalid
  Anopheles atacamensis González and Sallum, 2010 -- valid
  Anopheles baimaii Sallum and Peyton, 2005 -- valid
  Anopheles cracens Sallum and Peyton, 2005 -- valid
  Anopheles forattinii Wilkerson and Sallum, 1999 -- valid
  Anopheles hyrcanus (Pallas, 1771) -- valid
  Anopheles janconnae Wilkerson and Sallum, 2009 -- valid
  Anopheles labranchiae Falleroni, 1926 -- valid
  Anopheles latens Sallum and Peyton, 2005 -- valid
  Anopheles messeae Falleroni, 1926 -- valid
  Anopheles mirans Sallum and Peyton, 2005 -- valid
  Anopheles pristinus Nagaki and Sallum, 2010 -- valid
  Anopheles recens Sallum and Peyton, 2005 -- valid
  Anopheles scanloni Sallum and Peyton, 2005 -- valid
  Anopheles striatus Sant'Ana and Sallum, 2016 -- valid
  Anoplocephala globocephala MacCallum, 1921 -- invalid
  Anoplocnemis inconspicua (Dallas, 1852) -- valid
  Anoplocnemis moesta (Dallas, 1852) -- valid
  Anoplocnemis pagana (Dallas, 1852) -- valid
  Anoplodactylus californicus Hall, 1912 -- valid
  Anoplodactylus californiensis Hall, 1912 -- invalid
  Anoplopoma fimbria (Pallas, 1814) -- valid -- bacalao negro, sablefish
  Anoplostoma campbelli Allgen, 1932 -- valid
  Anoplostoma dubium Allgen, 1959 -- valid
  Anoplostoma tenuicaudum Allgen, 1959 -- valid
  Anota mcallii Hallowell, 1852 -- invalid
  Anser hyperboreus Pallas, 1769 -- invalid
  Antalis callithrix (Dall, 1889) -- valid
  Antalis ceratum (Dall, 1881) -- valid -- waxy tuskshell
  Antalis taphrium (Dall, 1889) -- valid -- green tuskshell
  Antarcticola Wallwork, 1967 -- valid
  Antarcticola meyeri Wallwork, 1967 -- valid
  Antarctomysis maxima (Holt and W. M. Tattersall, 1906) -- valid
  Antarcturus horridus Tattersall, 1921 -- valid
  Antarcturus horridus horridus Tattersall, 1921 -- valid
  Antennarius randalli Allen, 1970 -- valid -- Randall's frogfish
  Antennatus linearis Randall and Holcom, 2001 -- valid
  Antennella Allman, 1877 -- valid
  Antennella gracilis Allman, 1977 -- invalid
  Antennoseius lobochelus Halliday, Walter and Lindquist, 1998 -- valid
  Antennoseius ventrianalis Gwiazdowicz and Halliday, 2010 -- valid
  Anteromorpha depressa Galloway, 1984 -- valid
  Anthaxia inornata (Randall, 1838) -- valid
  Anthessius Della Valle, 1880 -- valid
  Anthias aurulentus Randall and McCosker, 1982 -- invalid
  Anthias bartlettorum Randall and Lubbock, 1981 -- invalid
  Anthias bicolor Randall, 1979 -- invalid
  Anthias ignitus Randall and Lubbock, 1981 -- invalid
  Anthias lori Lubbock and Randall in Fourmanoir and Laboute, 1976 -- invalid
  Anthias olivaceus Randall and McCosker, 1982 -- invalid
  Anthias parvirostris Randall and Lubbock, 1981 -- invalid
  Anthias regalis Randall and Lubbock, 1981 -- invalid
  Anthias smithvanizi Randall and Lubbock, 1981 -- invalid
  Anthias ventralis Randall, 1979 -- invalid
  Anthias ventralis hawaiiensis Randall, 1979 -- invalid
  Anthias ventralis ventralis Randall, 1979 -- invalid
  Anthidium cressonii Dalla Torre, 1896 -- invalid
  Anthidium indescriptum Dalla Torre, 1890 -- invalid
  Anthidium manicatum nigrithorax Dalla Torre, 1877 -- invalid
  Anthidium morawitzii Dalla Torre, 1896 -- invalid
  Anthidium orizabae Dalla Torre, 1890 -- invalid
  Anthidium pallidiventre Dalla Torre, 1896 -- invalid
  Anthidium stelidoides Dalla Torre, 1896 -- invalid
  Antho (Isopenectya) Hallmann, 1920 -- valid
  Anthobothrium lilliiformis MacCallum, 1917 -- valid
  Anthobothrium quadribothria (MacCallum, 1921) -- valid
  Anthocoris Fallén, 1814 -- valid
  Anthodioctes indescriptus (Dalla Torre, 1890) -- valid
  Anthomyia bidentata Malloch, 1913 -- invalid
  Anthomyia facialis (Malloch, 1918) -- valid
  Anthomyia mimetica (Malloch, 1918) -- valid
  Anthomyza frontalis Fallen, 1823 -- invalid
  Anthomyza gracilis Fallen, 1823 -- valid
  Anthomyza griseola Fallen, 1823 -- invalid
  Anthonomus apertus Fall, 1901 -- valid
  Anthonomus appositus Fall, 1913 -- valid
  Anthonomus blatchleyi Schenkling and Marshall, 1934 -- invalid
  Anthonomus cycliferus Fall, 1913 -- valid
  Anthonomus helianthi Fall, 1901 -- valid
  Anthonomus mimicanus Fall, 1913 -- invalid
  Anthonomus nubiloides Fall, 1928 -- invalid
  Anthonomus obesulus Fall, 1913 -- valid
  Anthonomus obtrusus Fall, 1913 -- invalid
  Anthonomus rubricus Schenkling and Marshall, 1934 -- valid
  Anthonomus solani Fall, 1913 -- valid
  Anthonomus sphaeralciae Fall, 1913 -- valid
  Anthonomus stolatus Fall, 1901 -- valid
  Anthonomus tahoensis Fall, 1901 -- valid
  Anthonomus tenuis Fall, 1913 -- valid
  Anthonomus univestis Schenkling and Marshall, 1934 -- valid
  Anthophora aegyptiaca (Dalla Torre and Friese, 1895) -- valid
  Anthophora angolensis (Dalla Torre, 1896) -- valid
  Anthophora candens Dalla Torre, 1896 -- invalid
  Anthophora eversmannii (Dalla Torre and Friese, 1895) -- valid
  Anthophora gallica (Dalla Torre and Friese, 1895) -- invalid
  Anthophora ireos (Pallas, 1773) -- valid
  Anthophora parietina schenki Dalla Torre, 1877 -- invalid
  Anthophora plumipes (Pallas, 1772) -- valid
  Anthophora saropodoides (Dalla Torre, 1896) -- valid
  Anthornis melanura obscura Falla, 1948 -- valid
  Anthoscopus punctifrons (Sundevall, 1850) -- valid -- Sennar Penduline Tit
  Anthracophaga distichliae Malloch, 1918 -- invalid
  Anthrena americana Dalla Torre, 1896 -- invalid
  Anthrena clypeolata Dalla Torre, 1896 -- invalid
  Anthrena commixta Dalla Torre and Friese, 1895 -- invalid
  Anthrena meridionalis Dalla Torre and Friese, 1895 -- invalid
  Anthrena provancheri Dalla Torre, 1896 -- invalid
  Anthrena scutellata Dalla Torre, 1896 -- invalid
  Anthus brachyurus Sundevall, 1850 -- valid -- Short-tailed Pipit
  Anthus brachyurus brachyurus Sundevall, 1850 -- valid
  Anthus caffer Sundevall, 1850 -- valid -- Bushveld Pipit
  Anthus caffer caffer Sundevall, 1850 -- valid
  Anthus cervinus (Pallas, 1811) -- valid -- Bisbita garganta roja, Red-throated Pipit
  Anthus cervinus cervinus (Pallas, 1811) -- invalid
  Anthus lineiventris Sundevall, 1850 -- valid -- Striped Pipit
  Anthus rubescens (Tunstall, 1771) -- valid -- American Pipit, Bisbita de agua, Buff-bellied Pipit, pipit d'Amérique
  Anthus rubescens rubescens (Tunstall, 1771) -- valid
  Anthus rufulus medius Wallace, 1864 -- valid
  Anthus similis yamethini B. P. Hall, 1957 -- valid
  Anthus spinoletta rubescens (Tunstall, 1771) -- invalid
  Anticoma antarctica (Allgen, 1929) -- valid
  Anticoma campbelli Allgen, 1932 -- valid
  Anticoma longissima Allgen, 1958 -- valid
  Anticoma microseta Allgen, 1935 -- valid
  Anticoma strandi Allgen, 1940 -- valid
  Anticomopsis filicauda (Allgen, 1951) -- valid
  Anticomopsis tenuis (Allgen, 1947) -- valid
  Anticyathus primitivus (Allgen, 1933) -- valid
  Antidorcas Sundevall, 1847 -- valid
  Antilope Pallas, 1766 -- valid -- blackbucks
  Antipathes Pallas, 1766 -- valid
  Antipathes dichotoma Pallas, 1766 -- valid
  Antipathes pennacea Pallas, 1766 -- valid -- bottle brush coral, feather black coral
  Antiplanes Dall, 1902 -- valid
  Antiplanes abarbareus Dall, 1919 -- valid
  Antiplanes briseis Dall, 1919 -- valid
  Antiplanes bulimoides Dall, 1919 -- valid
  Antiplanes diaulax (Dall, 1908) -- valid
  Antiplanes hyperia Dall, 1919 -- valid
  Antiplanes kamchatica Dall, 1919 -- valid
  Antiplanes litus Dall, 1919 -- valid
  Antiplanes piona (Dall, 1902) -- valid
  Antiplanes rotula Dall, 1921 -- valid
  Antiplanes santarosanus (Dall, 1902) -- valid
  Antiplanes thalea (Dall, 1902) -- valid
  Antiplanes vinosus (Dall, 1874) -- valid
  Antistea elegans (Blackwall, 1841) -- valid
  Antistea elegans elegans (Blackwall, 1841) -- valid
  Antliarhinus verdcourti Marshall, 1955 -- valid
  Antromysis americana W. M. Tattersall, 1951 -- invalid
  Antromysis anophelinae W. M. Tattersall, 1951 -- valid
  Antrozous H. Allen, 1862 -- valid -- pallid bats
  Anurophorus spinosus Dallai, 1971 -- valid
  Anurophorus unguiculus Bagnall, 1940 -- valid
  Anyphaena Sundevall, 1833 -- valid
  Anyphaena accentuata obscura (Sundevall, 1831) -- valid
  Aorotrema cistronium (Dall, 1889) -- valid
  Apareiodon orinocensis Bonilla, Machado-Allison, Silvera, Chernoff, López and Lasso, 1999 -- valid
  Apareiodon pongoense Allen in Eigenmann and Allen, 1942 -- invalid
  Apataniidae Wallengren, 1886 -- valid
  Apataniinae Wallengren, 1886 -- valid
  Apataniini Wallengren, 1886 -- valid
  Apate tenebrans (Pallas, 1772) -- invalid
  Apate terebrans (Pallas, 1772) -- valid
  Apateticus Dallas, 1851 -- valid
  Apateticus (Apateticus) Dallas, 1851 -- valid
  Apaulina basingeri Hall, 1948 -- invalid
  Apaulina cuprina Hall, 1948 -- invalid
  Apaulina sapphira Hall, 1948 -- invalid
  Aper Pallas, 1766 -- invalid
  Aphaenogaster gibbosa mauritanica Dalla Torre, 1893 -- valid
  Aphanus tripunctatus Dallas, 1852 -- invalid
  Aphidius abietis Marshall, 1896 -- invalid
  Aphidius absinthii Marshall, 1896 -- valid
  Aphidius apolloni Kavallieratos and Tomanovic, 2006 -- valid
  Aphidius brassicae Marshall, 1896 -- invalid
  Aphidius callipteri Marshall, 1896 -- invalid
  Aphidius cardui Marshall, 1896 -- invalid
  Aphidius cerasi Marshall, 1896 -- invalid
  Aphidius chrysanthemi Marshall, 1896 -- invalid
  Aphidius dauci Marshall, 1896 -- invalid
  Aphidius eadyi Starý, González and Hall, 1980 -- valid
  Aphidius euphorbiae Marshall, 1896 -- invalid
  Aphidius fabarum Marshall, 1895 -- invalid
  Aphidius galii Tomanovic and Kavallieratos, 2002 -- valid
  Aphidius geranii Tomanovic and Kavallieratos, 2009 -- valid
  Aphidius granarius Marshall, 1896 -- invalid
  Aphidius gregarius Marshall, 1872 -- invalid
  Aphidius hortensis Marshall, 1896 -- valid
  Aphidius longulus Marshall, 1896 -- invalid
  Aphidius lonicerae Marshall, 1896 -- invalid
  Aphidius lychnidis Marshall, 1896 -- invalid
  Aphidius medicaginis Marshall, 1898 -- invalid
  Aphidius montenegrinus Tomanovic and Kavallieratos, 2004 -- valid
  Aphidius pascuorum Marshall, 1896 -- invalid
  Aphidius polygoni Marshall, 1896 -- invalid
  Aphidius pseudoplatani Marshall, 1896 -- invalid
  Aphidius pterocommae Marshall, 1896 -- invalid
  Aphidius scabiosae Marshall, 1896 -- invalid
  Aphidius silenes Marshall, 1896 -- invalid
  Aphidius sonchi Marshall, 1896 -- valid
  Aphidius ulmi Marshall, 1896 -- invalid
  Aphiochaeta alaskensis Malloch, 1919 -- invalid
  Aphiochaeta anomala Malloch, 1912 -- invalid
  Aphiochaeta apicinebula Malloch, 1924 -- invalid
  Aphiochaeta approximata Malloch, 1912 -- invalid
  Aphiochaeta arcuata Malloch, 1912 -- invalid
  Aphiochaeta aristalis Malloch, 1914 -- invalid
  Aphiochaeta arizonensis Malloch, 1912 -- invalid
  Aphiochaeta atomella Malloch, 1912 -- invalid
  Aphiochaeta barberi Malloch, 1912 -- invalid
  Aphiochaeta bicolorata Malloch, 1912 -- invalid
  Aphiochaeta bisetulata Malloch, 1915 -- invalid
  Aphiochaeta borealis Malloch, 1912 -- invalid
  Aphiochaeta brunnipes Malloch, 1912 -- invalid
  Aphiochaeta californiensis Malloch, 1912 -- invalid
  Aphiochaeta carlynensis Malloch, 1912 -- invalid
  Aphiochaeta cayuga Malloch, 1912 -- invalid
  Aphiochaeta chaetoneura Malloch, 1912 -- invalid
  Aphiochaeta conglomerata Malloch, 1912 -- invalid
  Aphiochaeta conica Malloch, 1912 -- invalid
  Aphiochaeta conspicualis Malloch, 1912 -- invalid
  Aphiochaeta difficilis Malloch, 1912 -- invalid
  Aphiochaeta divergens Malloch, 1912 -- invalid
  Aphiochaeta dubitata Malloch, 1912 -- invalid
  Aphiochaeta dyari Malloch, 1912 -- invalid
  Aphiochaeta evarthae Malloch, 1912 -- invalid
  Aphiochaeta fenestrata Malloch, 1912 -- invalid
  Aphiochaeta fisheri Malloch, 1912 -- invalid
  Aphiochaeta flavinervis Malloch, 1912 -- invalid
  Aphiochaeta flavipalpis Malloch, 1913 -- invalid
  Aphiochaeta franconiensis Malloch, 1912 -- invalid
  Aphiochaeta fungorum Malloch, 1912 -- invalid
  Aphiochaeta fuscopedunculata Malloch, 1912 -- invalid
  Aphiochaeta inaequalis Malloch, 1912 -- invalid
  Aphiochaeta inornata Malloch, 1912 -- invalid
  Aphiochaeta iroquoiana Malloch, 1912 -- invalid
  Aphiochaeta johannseni Malloch, 1912 -- invalid
  Aphiochaeta longipennis Malloch, 1912 -- invalid
  Aphiochaeta marginalis Malloch, 1912 -- invalid
  Aphiochaeta monticola Malloch, 1912 -- invalid
  Aphiochaeta nasoni Malloch, 1914 -- invalid
  Aphiochaeta pallidiventris Malloch, 1919 -- invalid
  Aphiochaeta perdita Malloch, 1912 -- invalid
  Aphiochaeta peregrina Malloch, 1912 -- invalid
  Aphiochaeta perplexa Malloch, 1912 -- invalid
  Aphiochaeta platychira Malloch, 1919 -- invalid
  Aphiochaeta plebeia Malloch, 1914 -- invalid
  Aphiochaeta proboscidea Malloch, 1912 -- invalid
  Aphiochaeta quadripunctata Malloch, 1918 -- invalid
  Aphiochaeta retardata Malloch, 1912 -- invalid
  Aphiochaeta rusticata Malloch, 1912 -- invalid
  Aphiochaeta schwarzi Malloch, 1912 -- invalid
  Aphiochaeta seticauda Malloch, 1914 -- invalid
  Aphiochaeta straminea Malloch, 1912 -- invalid
  Aphiochaeta straminipes Malloch, 1912 -- invalid
  Aphiochaeta subatomella Malloch, 1912 -- invalid
  Aphiochaeta subciliata Malloch, 1913 -- invalid
  Aphiochaeta sublutea Malloch, 1912 -- invalid
  Aphiochaeta submanicata Malloch, 1914 -- invalid
  Aphiochaeta submarginalis Malloch, 1912 -- invalid
  Aphiochaeta subobscurata Malloch, 1912 -- invalid
  Aphiochaeta subpicta Malloch, 1912 -- invalid
  Aphiochaeta ursina Malloch, 1912 -- invalid
  Aphiochaeta vulgata Malloch, 1912 -- invalid
  Aphiochaeta winnemana Malloch, 1912 -- invalid
  Aphodius bistrigatus Dalla Torre, 1879 -- invalid
  Aphodius blaisdelli Fall, 1905 -- invalid
  Aphodius davisi Fall, 1930 -- invalid
  Aphodius fortunus Fall, 1932 -- invalid
  Aphodius griseus Dalla Torre, 1879 -- invalid
  Aphodius guadeloupensis Fleutiaux and Sallé, 1889 -- invalid
  Aphodius knausii Fall, 1905 -- invalid
  Aphodius lineatus Dalla Torre, 1879 -- invalid
  Aphodius longitarsis Fall, 1907 -- invalid
  Aphodius melancholicus Dalla Torre, 1879 -- invalid
  Aphodius nodifrons Randall, 1838 -- invalid
  Aphodius rufotestaceus Dalla Torre, 1879 -- invalid
  Aphodius thoracicus Dalla Torre, 1879 -- invalid
  Aphodius unicolor Dalla Torre, 1879 -- invalid
  Aphoebantus albopilosus Tabet and Hall, 1987 -- valid
  Aphoebantus bilineatus Tabet and Hall, 1987 -- valid
  Aphoebantus leucospilus Tabet and Hall, 1987 -- valid
  Aphoebantus melanomerinyx Tabet and Hall, 1987 -- valid
  Aphoebantus nigropilosus Tabet and Hall, 1987 -- valid
  Aphoebantus oxypetes Tabet and Hall, 1987 -- valid
  Aphoebantus schlingeri Hall, 1957 -- valid
  Aphoebantus xanthoscelus Tabet and Hall, 1987 -- valid
  Aphrodita cirrhosa Pallas, 1766 -- invalid
  Aphrophora alni (Fallén, 1805) -- valid -- European alder spittlebug
  Aphrophora angulata Ball, 1898 -- valid
  Aphrophora annulata Ball, 1898 -- valid
  Aphrophora canadensis Walley, 1928 -- valid
  Aphrophora irrorata Ball, 1898 -- valid
  Aphrophora princeps Walley, 1928 -- valid
  Aphrophora punctipes Walley, 1928 -- valid
  Aphrophorini Lallemand, 1924 -- valid
  Aphyocharax yekwanae Willink, Chernoff and Machado-Allison Willink et al., 2003 -- valid
  Apiochaeta infumata Malloch, 1912 -- invalid
  Apiomerus arnaui fulvomarginatus Carcavallo, Martínez and Prosen, 1964 -- valid
  Apiomerus fritzi Prosen, Carcavallo and Martínez, 1959 -- valid
  Apiomerus navajasi Prosen, Martínez and Carcavallo, 1962 -- valid
  Apiomerus rufipennis (Fallou, 1889) -- valid
  Apiomerus vallejosae Carcavallo, Martínez and Prosen, 1964 -- valid
  Apiomerus velazcoi Prosen, Carcavallo and Martínez, 1959 -- valid
  Apiomerus willineri Carcavallo, Martínez and Prosen, 1964 -- valid
  Apis fragrans Pallas, 1771 -- invalid
  Apis ireos (Pallas, 1773) -- invalid
  Apis plumipes Pallas, 1772 -- invalid
  Apis siciliana Dalla Torre, 1896 -- invalid
  Apleurus hystrix (Fall, 1913) -- valid
  Aploderus mimeticus Fall, 1910 -- valid
  Aploderus trinifer Fall, 1910 -- valid
  Aplonis santovestris Harrisson & A. J. Marshall, 1937 -- valid -- Vanuatu Starling
  Aplysia cervina (Dall and Simpson, 1901) -- valid
  Apocephalus antennatus Malloch, 1913 -- valid
  Apocephalus aridus Malloch, 1912 -- valid
  Apocephalus coquilletti Malloch, 1912 -- valid
  Apocephalus pictus Malloch, 1918 -- invalid
  Apocephalus similis Malloch, 1912 -- valid
  Apocephalus spinicosta Malloch, 1912 -- invalid
  Apodemus agrarius (Pallas, 1771) -- valid -- Striped Field Mouse
  Apodemus mystacinus euxinus G. Allen, 1914 -- invalid
  Apodemus uralensis (Pallas, 1811) -- valid -- Herb Field Mouse
  Apogon anisolepis Böhlke and Randall, 1968 -- invalid -- oddscale cardinalfish, oddscale cardinalfish
  Apogon brevispinis Fraser and Randall, 2003 -- valid
  Apogon capricornis Allen and Randall, 1993 -- valid
  Apogon caudicinctus Randall and Smith, 1988 -- valid
  Apogon chalcius Fraser and Randall, 1986 -- valid
  Apogon darnleyensis (Alleyne and Macleay, 1877) -- valid
  Apogon deetsie Randall, 1998 -- valid
  Apogon dhofar Mee in Randall, 1995 -- invalid
  Apogon dianthus Fraser and Randall, 2002 -- valid
  Apogon dispar Fraser and Randall, 1976 -- valid
  Apogon erythrosoma Gon and Randall, 2003 -- valid
  Apogon flavus Allen and Randall, 1993 -- valid
  Apogon franssedai Allen, Kuiter and Randall, 1994 -- valid
  Apogon fuscomaculatus Allen and Morrison, 1996 -- valid
  Apogon fusovatus Allen, 1985 -- invalid
  Apogon isus Randall and Böhlke, 1981 -- valid
  Apogon komodoensis Allen, 1998 -- valid
  Apogon lativittatus Randall, 2001 -- valid
  Apogon leptofasciatus Allen, 2001 -- valid
  Apogon limenus Randall and Hoese, 1988 -- valid
  Apogon luteus Randall and Kulbicki, 1998 -- valid
  Apogon marmoratus (Alleyne and Macleay, 1877) -- invalid
  Apogon melanoproctus Fraser and Randall, 1976 -- valid
  Apogon monospilus Fraser, Randall and Allen, 2002 -- valid
  Apogon nanus Allen, Kuiter and Randall, 1994 -- valid
  Apogon neotes Allen, Kuiter and Randall, 1994 -- valid
  Apogon ocellicaudus Allen, Kuiter and Randall, 1994 -- valid
  Apogon oxygrammus Allen, 2001 -- valid
  Apogon pallidofasciatus Allen, 1987 -- valid
  Apogon phenax Böhlke and Randall, 1968 -- valid -- cardenal mimético, mimic cardinalfish
  Apogon photogaster Gon and Allen, 1998 -- invalid
  Apogon pillionatus Böhlke and Randall, 1968 -- valid -- broadsaddle cardinalfish, cardenal colirrayada
  Apogon pselion Randall, Fraser and Lachner, 1990 -- valid
  Apogon regula Fraser and Randall, 2003 -- valid
  Apogon relativus Randall, 2001 -- valid
  Apogon robinsi Böhlke and Randall, 1968 -- valid -- cardenal, roughlip cardinalfish
  Apogon robinsoni Böhlke and Randall, 1968 -- invalid -- roughlip cardinalfish
  Apogon rubrimacula Randall and Kulbicki, 1998 -- valid
  Apogon rufus Randall and Fraser, 1999 -- valid
  Apogon sabahensis Allen and Kuiter, 1994 -- invalid
  Apogon selas Randall and Hayashi, 1990 -- valid
  Apogon sinus Randall, 2001 -- valid
  Apogon smithvanizi Allen and Randall, 1994 -- invalid
  Apogon unitaeniatus Allen, 1995 -- valid
  Apogon ventrifasciatus Allen, Kuiter and Randall, 1994 -- invalid
  Apogon virgulatus Allen and Randall, 1993 -- invalid
  Apogon zebrinus Fraser, Randall and Lachner, 1999 -- valid
  Apolemichthys guezei (Randall and Maugé, 1978) -- valid
  Apolochus neapolitanus (Della Valle, 1893) -- valid
  Apolysis forbesi Evenhuis and Hall, 1983 -- valid
  Apolysis nigricans (Tabet and Hall, 1987) -- valid
  Aponchium conicaudatum Allgen, 1951 -- valid
  Aponcholaimus Allgen, 1957 -- valid
  Aponcholaimus linhomoeoides Allgen, 1957 -- valid
  Appalachia arcana Hubbell and Cantrall, 1938 -- valid
  Aprosdoketophis Wallach, Lanza and Nistri, 2010 -- valid
  Aprosdoketophis andreonei Wallach, Lanza and Nistri, 2010 -- valid
  Apseudes africanus Tattersall, 1925 -- valid
  Apteroloma caraboides (Fall, 1907) -- valid
  Apteroloma tahoecum (Fall, 1927) -- valid
  Apteromechus microstictus Fall, 1925 -- invalid
  Apteromechus texanus Fall, 1925 -- valid
  Apteromyia newtoni Marshall and Rohacek, 1982 -- valid
  Apterothrips Bagnall, 1908 -- valid
  Aptilotus borealis Malloch, 1913 -- valid
  Aptilotus cruciatus Marshall, 1983 -- valid
  Aptilotus spatulatus Marshall, 1983 -- valid
  Aptocyclus ventricosus (Pallas, 1769) -- valid -- smooth lumpsucker
  Apulvillus Malloch -- valid
  Apus australiensis Spencer and Hall, 1896 -- invalid
  Aquarius remigoides Gallant and Fairbairn, 1996 -- valid
  Aquatica Fu, Ballantyne and Lambkin, 2010 -- valid
  Aquatica leii (Fu and Ballantyne, 2006) -- valid
  Aquatica wuhana Fu, Ballantyne and Lambkin, 2010 -- valid
  Aquila clanga Pallas, 1811 -- valid -- Greater Spotted Eagle
  Aquila wahlbergi Sundevall, 1850 -- invalid -- Wahlberg's Eagle
  Aquilonaria Dall, 1886 -- valid
  Aquilonaria turneri Dall, 1886 -- valid
  Aquilonia Ballantyne in Ballantyne and Lambkin, 2009 -- valid
  Aquilonia similismessoria (Ballantyne in Ballantyne and Lambkin, 2009) -- valid
  Arachnidomyia minutissima (Hall, 1929) -- valid
  Aradus lugubris Fallén, 1807 -- valid
  Aradus lugubris lugubris Fallén, 1807 -- valid
  Araeoncus humilis (Blackwall, 1841) -- valid
  Araneus balanus (Doleschall, 1859) -- valid
  Araneus hortensis (Blackwall, 1859) -- valid
  Araneus indistinctus (Doleschall, 1859) -- valid
  Araneus radja (Doleschall, 1857) -- valid
  Arca asperula (Dall, 1881) -- invalid
  Archamia ataenia Randall and Satapoomin, 1999 -- valid
  Archamia bilineata Gon and Randall, 1995 -- valid
  Archamia flavofasciata Gon and Randall, 2003 -- valid
  Archamia irida Gon and Randall, 1995 -- invalid
  Archamia pallida Gon and Randall, 1995 -- valid
  Archechiniscus minutus Grimaldi de Zio and D'Addabbo Gallo, 1987 -- valid
  Archilina batiae Curini-Galletti and Martens, 1996 -- valid
  Archilina biselenifera Martens and Curini-Galletti, 1994 -- valid
  Archilina brachycirrus Martens and Curini-Galletti, 1994 -- valid
  Archilina caliban Martens and Curini-Galletti, 1994 -- valid
  Archilina deceptoria Martens and Curini-Galletti, 1994 -- valid
  Archilina etrusca Martens and Curini-Galletti, 1994 -- valid
  Archilina euglypta Curini-Galletti and Martens, 1996 -- valid
  Archilina israelitica Curini-Galletti and Martens, 1995 -- valid
  Archilina opisthobursa Curini-Galletti and Martens, 1996 -- valid
  Archilina palestinica Martens and Curini-Galletti, 1994 -- valid
  Archilina selenifera Martens and Curini-Galletti, 1994 -- valid
  Archilina stylifera Curini-Galletti and Martens, 1996 -- valid
  Archilina vanderlandi (Martens and Curini-Galletti, 1989) -- valid
  Archiloa polycirrus Curini-Galletti, 2014 -- valid
  Archiloa vanderlandi Martens and Curini-Galletti, 1989 -- invalid
  Archilopsis arenaria Martens, Curini-Galletti and Pucinelli, 1989 -- valid
  Archilopsis inopinata Martens, Curini-Galletti and Pucinelli, 1989 -- invalid
  Archilopsis marifuga Martens, Curini-Galletti and Pucinelli, 1989 -- valid
  Archimonocelis carmelitana Martens and Curini-Galletti, 1993 -- valid
  Archimonocelis crucifera Martens and Curini-Galletti, 1993 -- valid
  Archimonocelis cygnicollis Curini-Galletti, Delogu, Campus and Casu, 1997 -- valid
  Archimonocelis glabrodorsata Martens and Curini-Galletti, 1993 -- valid
  Archimonocelis hasanuddin Martens and Curini-Galletti, 1989 -- valid
  Archimonocelis inopinata Martens and Curini-Galletti, 1993 -- valid
  Archimonocelis keke Martens and Curini-Galletti, 1989 -- valid
  Archimonocelis marci Curini-Galletti, 2014 -- valid
  Archimonocelis medusa Curini-Galletti and Cannon, 1997 -- valid
  Archimonocelis meixneri Martens and Curini-Galletti, 1993 -- valid
  Archimonocelis monicae Martens and Curini-Galletti, 1993 -- valid
  Archimonocelis parastaresoi Curini-Galletti, Delogu, Campus and Casu, 1997 -- valid
  Archimonocelis puertoricana Martens and Curini-Galletti, 1993 -- valid
  Archimonocelis rhizophoralis Martens and Curini-Galletti, 1989 -- valid
  Archimonocelis sabra Martens and Curini-Galletti, 1993 -- valid
  Archimonocelis scopulicola Curini-Galletti, Delogu, Campus and Casu, 1997 -- valid
  Archimonocelis staresoi Martens and Curini-Galletti, 1993 -- valid
  Architectonica peracuta (Dall, 1889) -- valid
  Archivesia Dall, 1908 -- invalid
  Archocentrus altoflavus (Allgayer, 2001) -- valid
  Archocentrus nanoluteus Allgayer, 1994 -- valid
  Arcinella arcinella californica (Dall, 1903) -- valid
  Arcoppia fenestralis (Wallwork, 1961) -- valid
  Arcoppia fenestralis fenestralis (Wallwork, 1961) -- valid
  Arcoppia radiata (Wallwork, 1961) -- valid
  Arcopsis adamsi (Dall, 1886) -- valid -- adams ark, cancellate ark
  Arctapodema Dall, 1907 -- valid
  Arctictis binturong whitei J. A. Allen, 1910 -- valid
  Arctocorisa Wallengren, 1894 -- valid
  Arctocorixa bicoloripennis Walley, 1936 -- invalid
  Arctocorixa johanseni Walley, 1931 -- invalid
  Arctocorixa nevadensis Walley, 1936 -- invalid
  Arctocorixa quebecensis Walley, 1930 -- invalid
  Arctocorixa scabricula Walley, 1936 -- invalid
  Arctocorixa semilucida Walley, 1930 -- invalid
  Arctocorixa transfigurata Walley, 1930 -- invalid
  Arctocoriza Wallengren, 1894 -- invalid
  Arctomelon Dall, 1915 -- valid
  Arctomelon stearnsii (Dall, 1872) -- valid -- Alaska volute
  Arctopodema Dall, 1907 -- invalid
  Arctosa alpigena (Doleschall, 1852) -- valid
  Arctosa alpigena alpigena (Doleschall, 1852) -- valid
  Arctosa leopardus (Sundevall, 1833) -- valid
  Arctosa sanctaerosae Gertsch & Wallace, 1935 -- valid
  Arctoseius memnon Halliday, Walter and Lindquist, 1998 -- valid
  Ardea helias Pallas, 1781 -- invalid
  Ardeola rufiventris (Sundevall, 1850) -- valid -- Rufous-bellied Heron
  Ardops haitiensis J. A. Allen, 1908 -- invalid
  Arene bairdii (Dall, 1889) -- valid -- warty cyclostreme
  Arene brasiliana (Dall, 1927) -- valid
  Arene briareus (Dall, 1881) -- valid -- briar cyclostreme
  Arene californica (Dall, 1908) -- valid
  Arene miniata (Dall, 1889) -- valid
  Arene variabilis (Dall, 1889) -- valid -- variable cyclostreme
  Argiope catenulata (Doleschall, 1859) -- valid
  Argiope lobata (Pallas, 1772) -- valid
  Argiope lobata lobata (Pallas, 1772) -- invalid
  Argiope reinwardti (Doleschall, 1859) -- valid
  Argiope reinwardti reinwardti (Doleschall, 1859) -- valid
  Argiope versicolor (Doleschall, 1859) -- valid
  Argonauta expansa Dall, 1872 -- invalid
  Argonauta pacifica Dall, 1871 -- valid
  Argonauta pacifica Dall, 1869 -- invalid
  Argopecten irradians amplicostatus (Dall, 1898) -- valid
  Argyrodes cognatus (Blackwall, 1877) -- valid
  Argyrodes miniaceus (Doleschall, 1857) -- valid
  Argyrodes rostratus Blackwall, 1877 -- valid
  Argyrodes sundaicus (Doleschall, 1859) -- valid
  Argyrophis roxaneae (Wallach, 2001) -- valid -- Roxane's Blind Snake
  Argyrotheca Dall, 1900 -- valid
  Argyrotheca cordata exopleura Dall -- invalid
  Arhopalus rusticus obsoletus (Randall, 1838) -- valid
  Ariadna crassipalpa (Blackwall, 1863) -- valid
  Ariadna obscura (Blackwall, 1858) -- valid
  Ariamnes flagellum (Doleschall, 1857) -- valid
  Ariamnes flagellum flagellum (Doleschall, 1857) -- valid
  Arianops stephani Carlton, in Carlton and Allen, 1989 -- valid
  Aricia bicolorata Malloch and Lovett, 1919 -- invalid
  Aricia borealis Malloch, 1919 -- invalid
  Aricia latifrontata Malloch, 1918 -- invalid
  Aricia oregonensis Malloch and Lovett, 1919 -- invalid
  Aricia poeciloptera Malloch, 1918 -- invalid
  Ariciella flavicornis Malloch, 1918 -- invalid
  Aristelliger praesignis (Hallowell, 1856) -- valid
  Aristonister Dégallier, 1998 -- valid
  Arrenurus acutus (Marshall, 1908) -- valid
  Arrenurus americanus Marshall, 1908 -- valid
  Arrenurus americanus americanus Marshall, 1908 -- valid
  Arrenurus americanus major Marshall, 1908 -- valid
  Arrenurus amplus Marshall, 1908 -- valid
  Arrenurus bicaudatus (Marshall, 1908) -- valid
  Arrenurus birgei (Marshall, 1903) -- valid
  Arrenurus capillatus (Marshall, 1908) -- valid
  Arrenurus cardiacus (Marshall, 1903) -- valid
  Arrenurus compactilis Marshall, 1908 -- valid
  Arrenurus cornicularis (Marshall, 1908) -- valid
  Arrenurus crenellatus (Marshall, 1908) -- valid
  Arrenurus dentipetiolatus Marshall, 1908 -- valid
  Arrenurus elevatus (Marshall, 1914) -- valid
  Arrenurus elongatus (Marshall, 1924) -- valid
  Arrenurus expansa (Marshall, 1908) -- valid
  Arrenurus falcicornis Marshall, 1908 -- valid
  Arrenurus fissicornis Marshall, 1908 -- valid
  Arrenurus flabellifer Marshall, 1908 -- valid
  Arrenurus infundibularis (Marshall, 1908) -- valid
  Arrenurus kenki Marshall, 1944 -- valid
  Arrenurus laticaudatus (Marshall, 1908) -- valid
  Arrenurus laticornis Marshall, 1908 -- valid
  Arrenurus laversi Marshall, 1944 -- valid
  Arrenurus longicaudatus (Marshall, 1908) -- valid
  Arrenurus lyriger (Marshall, 1908) -- valid
  Arrenurus magnicaudatus Marshall, 1908 -- valid
  Arrenurus mamillanus (Marshall, 1908) -- valid
  Arrenurus manubriator (Marshall, 1903) -- valid
  Arrenurus megalurus (Marshall, 1903) -- valid
  Arrenurus montifer (Marshall, 1908) -- valid
  Arrenurus morrisoni (Marshall, 1904) -- valid
  Arrenurus muttkowskii Marshall, 1940 -- valid
  Arrenurus parallellatus (Marshall, 1908) -- valid
  Arrenurus pistillatus Marshall, 1908 -- valid
  Arrenurus planus Marshall, 1908 -- valid
  Arrenurus pleopetiolatus Marshall, 1944 -- valid
  Arrenurus pollictus Marshall, 1910 -- valid
  Arrenurus prominulus (Marshall, 1908) -- valid
  Arrenurus pseudosetiger (Marshall, 1921) -- valid
  Arrenurus rawsoni (Marshall, 1919) -- valid
  Arrenurus reflexus Marshall, 1908 -- valid
  Arrenurus retangularis (Marshall, 1908) -- valid
  Arrenurus rotundus (Marshall, 1908) -- valid
  Arrenurus scutulatus (Marshall, 1908) -- valid
  Arrenurus scutuliformis (Marshall, 1908) -- valid
  Arrenurus serratus Marshall, 1919 -- valid
  Arrenurus simulans (Marshall, 1921) -- valid
  Arrenurus solifer (Marshall, 1908) -- valid
  Arrenurus superior Marshall, 1908 -- valid
  Arrenurus tacomaensis Marshall, 1924 -- valid
  Arrenurus tahoei (Marshall, 1910) -- valid
  Arrenurus trifoliatus Marshall, 1908 -- valid
  Arrenurus uniformis (Marshall, 1921) -- valid
  Arrenurus wardi (Marshall, 1940) -- valid
  Arrenurus wolcotti Marshall, 1908 -- valid
  Arthroleptis africana (Hallowell, 1858) -- invalid
  Arthroleptis africanus (Hallowell, 1858) -- invalid
  Artibeina H. Allen, 1898 -- valid -- fruit-eating bats
  Artibeus jamaicensis richardsoni J. A. Allen, 1908 -- valid
  Artibeus jamaicensis yucatanicus J. A. Allen, 1904 -- valid
  Artibeus lituratus intermedius J. A. Allen, 1897 -- valid
  Artibeus lituratus palmarum J. A. Allen and Chapman, 1897 -- valid
  Artibeus palmarum J. A. Allen and Chapman, 1897 -- invalid
  Artibeus yucatanicus J. A. Allen, 1904 -- invalid
  Artifex Kallal & Hormiga, 2018 -- valid
  Arvicanthis nairobae J. A. Allen, 1909 -- valid -- East African Arvicanthis
  Arvicola insperatus J. A. Allen, 1894 -- invalid
  Arvicola leucophaeus J. A. Allen, 1894 -- invalid
  Asagena Sundevall, 1833 -- valid
  Asca deleoni Moraes, Britto, Mineiro and Halliday, 2016 -- valid
  Asca grostali Walter, Halliday and Lindquist, 1993 -- valid
  Asca macromela Walter, Halliday and Lindquist, 1993 -- valid
  Asca mindi Walter, Halliday and Lindquist, 1993 -- valid
  Ascetomylla porzanae (Bochkov and Galloway, 2001) -- valid
  Aschistocoris brevicornis (Dallas, 1852) -- valid
  Ascidia aurantium Pallas, 1787 -- invalid
  Ascidia clavata Pallas, 1774 -- invalid
  Ascidia globularis Pallas, 1776 -- invalid
  Asellia arabica Benda, Vallo and Reiter, 2011 -- valid -- Arabian Trident Leaf-nosed Bat
  Asellus aquaticus abyssalis Odenwall, 1927 -- valid
  Asellus hilgendorfii Bovallius, 1886 -- valid
  Asellus hilgendorfii hilgendorfii Bovallius, 1886 -- valid
  Asellus kawamurai (Tattersall, 1921) -- invalid
  Asellus kawamurai (Tattersall, 1921) -- invalid
  Aseraggodes albidus Randall & Desoutter-Meniger, 2007 -- valid
  Aseraggodes andersoni Randall & Bogorodsky in Randall, Bogorodsky & Mal, 2013 -- valid
  Aseraggodes auroculus Randall, 2005 -- valid
  Aseraggodes bahamondei Randall & Meléndez C., 1987 -- valid
  Aseraggodes borehami Randall, 1996 -- valid
  Aseraggodes brevirostris Randall & Gon, 2006 -- valid
  Aseraggodes chapleaui Randall & Desoutter-Meniger, 2007 -- valid
  Aseraggodes cheni Randall & Senou, 2007 -- valid
  Aseraggodes corymbus Randall & Bartsch, 2007 -- valid
  Aseraggodes crypticus Randall & Allen, 2007 -- valid
  Aseraggodes cyclurus Randall, 2005 -- valid
  Aseraggodes firmisquamis Randall & Bartsch, 2005 -- valid
  Aseraggodes heemstrai Randall & Gon, 2006 -- valid
  Aseraggodes heraldi Randall & Bartsch, 2005 -- valid
  Aseraggodes holcomi Randall, 2002 -- valid
  Aseraggodes jenny Randall & Gon, 2006 -- valid
  Aseraggodes kimurai Randall & Desoutter-Meniger, 2007 -- valid
  Aseraggodes kruppi Randall & Bogorodsky in Randall, Bogorodsky & Mal, 2013 -- valid
  Aseraggodes lateralis Randall, 2005 -- valid
  Aseraggodes lenisquamis Randall, 2005 -- valid
  Aseraggodes longipinnis Randall & Desoutter-Meniger, 2007 -- valid
  Aseraggodes macronasus Randall & Bogorodsky in Randall, Bogorodsky & Mal, 2013 -- valid
  Aseraggodes magnoculus Randall, 2005 -- valid
  Aseraggodes martine Randall & Bogorodsky in Randall, Bogorodsky & Mal, 2013 -- valid
  Aseraggodes matsuurai Randall & Desoutter-Meniger, 2007 -- valid
  Aseraggodes nigrocirratus Randall, 2005 -- valid
  Aseraggodes orientalis Randall & Senou, 2007 -- valid
  Aseraggodes pelvicus Randall, 2005 -- valid
  Aseraggodes satapoomini Randall & Desoutter-Meniger, 2007 -- valid
  Aseraggodes senoui Randall & Desoutter-Meniger, 2007 -- valid
  Aseraggodes suzumotoi Randall & Desoutter-Meniger, 2007 -- valid
  Aseraggodes therese Randall, 1996 -- valid
  Aseraggodes winterbottomi Randall & Desoutter-Meniger, 2007 -- valid
  Aseraggodes zizette Randall & Desoutter-Meniger, 2007 -- valid
  Ashmunella ashmuni (Dall, 1897) -- valid -- Jemez woodlandsnail
  Ashmunella chiricahuana (Dall, 1896) -- valid -- Cave Creek woodlandsnail
  Ashmunella mearnsii (Dall, 1895) -- valid -- big hatchet woodlandsnail
  Ashmunella pseudodonta (Dall, 1897) -- valid -- Capitan woodlandsnail
  Ashmunella rhyssa (Dall, 1897) -- valid -- Sierra Blanca woodlandsnail
  Asiarcha oblonga (Dallas, 1851) -- valid
  Asioplax corpulenta (Kilgore and Allen, 1973) -- invalid
  Asioplax dolani (Allen, 1967) -- valid
  Asioplax edmundsi (Allen, 1967) -- valid
  Aspella senex Dall, 1903 -- valid -- graybeard aspella
  Asperiscala cookeana (Dall, 1917) -- valid
  Asperiscala lowei (Dall, 1906) -- valid
  Asphaeridiopus Bagnall, 1935 -- invalid
  Asphaeridiopus ashworthi Bagnall, 1935 -- invalid
  Asphaeridiopus capillatus Remy and Balland, 1958 -- invalid
  Aspidiotus selangorensis Hall and Williams, 1962 -- valid
  Aspistes harti Malloch, 1920 -- valid
  Assessor flavissimus Allen and Kuiter, 1976 -- valid
  Assessor randalli Allen and Kuiter, 1976 -- valid
  Assiminea auberiana Dall, 1892 -- invalid
  Astacilla monodi Tattersall, 1925 -- valid
  Astacus Pallas, 1772 -- invalid
  Astacus dauricus Pallas, 1772 -- invalid
  Astacus oreganus Randall, 1840 -- invalid
  Astarte alaskensis Dall, 1903 -- invalid
  Astarte bennetti Dall, 1903 -- valid
  Astarte crenata whiteavesii Dall, 1903 -- valid
  Astarte globula Dall, 1886 -- valid
  Astarte liogona Dall, 1903 -- valid
  Astarte mirabilis (Dall, 1871) -- valid -- strange astarte
  Astarte nana Dall, 1886 -- valid -- dwarf astarte
  Astarte polaris Dall, 1903 -- valid -- polar astarte
  Astarte smithii Dall, 1886 -- valid -- smith astarte
  Astarte vernicosa Dall, 1903 -- valid -- varnished astarte
  Astarte willetti Dall, 1917 -- valid -- willett astarte
  Asterocampa clyton louisa D. Stallings and Turner, 1947 -- valid
  Asterophila Randall and Heath, 1912 -- valid
  Asterophila japonica Randall and Heath, 1912 -- valid
  Asterorhombus filifer Hensley & Randall, 2003 -- valid
  Asterropteryx bipunctata Allen and Munday, 1995 -- valid
  Asterropteryx striata Allen and Munday, 1995 -- valid
  Asthenothaerus diegensis (Dall, 1915) -- valid -- San Diego thraciid
  Asthenothaerus hemphilli Dall, 1886 -- valid -- hemphill thracid, square thraciid
  Astraea turbanica (Dall, 1910) -- invalid
  Astreopora macrostoma Veron and Wallace, 1984 -- valid
  Astreopora moretonensis Veron and Wallace, 1984 -- valid
  Astroblepus praeliorum Allen in Eigenmann and Allen, 1942 -- valid
  Astroides calycularis (Pallas, 1766) -- valid
  Astyris amiantis Dall, 1919 -- valid
  Astyris aurantiaca Dall, 1871 -- valid -- golden dovesnail
  Astyris hypodra (Dall, 1916) -- valid
  Astyris multilineata (Dall, 1889) -- valid -- brown-band dovesnail
  Astyris profundi (Dall, 1889) -- valid -- deepwater dovesnail
  Astyris raveneli (Dall, 1889) -- valid
  Asymmetricata Ballantyne in Ballantyne and Lambkin, 2009 -- valid
  Asynarchus thedenii (Wallengren, 1879) -- valid
  Ataenius anticus Fall, 1930 -- invalid
  Ataenius brevis Fall, 1930 -- valid
  Ataenius confertus Fall, 1909 -- valid
  Ataenius consors Fall, 1930 -- invalid
  Ataenius erratus Fall, 1930 -- valid
  Ataenius ludovicianus Fall, 1930 -- invalid
  Ataenius rudellus Fall, 1930 -- invalid
  Ataenius salutator Fall, 1930 -- invalid
  Atalantycha neglecta (Fall, 1919) -- valid
  Atalapha brachyotis J. A. Allen, 1892 -- invalid
  Atalapha semota H. Allen, 1890 -- invalid
  Atalapha teliotus H. Allen, 1891 -- invalid
  Ataxia sulcata Fall, 1907 -- invalid
  Ateles longimembris J. A. Allen, 1914 -- invalid
  Ateles robustus Allen, 1914 -- invalid
  Atelocynus microtis sclateri (J. A. Allen, 1905) -- valid
  Atelognathus patagonicus (Gallardo, 1962) -- valid
  Ateuchosaurus pellopleurus (Hallowell, 1861) -- valid -- Ryukyu Short-legged Skink
  Athene florensis Wallace, 1864 -- invalid
  Athene hantu Wallace, 1863 -- invalid
  Atheris squamigera (Hallowell, 1854) -- valid -- African Bush Viper, Rough-scaled Bush Viper, Variable Bush Viper
  Atheris squamigera squamigera (Hallowell, 1854) -- invalid
  Athesapeuta cyperi Marshall, 1928 -- valid
  Athripsodes grumicha (Vallot, 1855) -- invalid
  Athripsodini Morse & Wallace, 1976 -- valid
  Atilax paludinosus macrodon J. A. Allen, 1924 -- valid
  Atractaspis corpulenta (Hallowell, 1854) -- valid -- Mole Viper
  Atractaspis corpulenta corpulenta (Hallowell, 1854) -- valid
  Atractides nodipalpis americanus (Marshall, 1943) -- valid
  Atractides parviscutus Marshall, 1915 -- valid
  Atractides phenopleces Marshall, 1915 -- valid
  Atractides sturgeonensis (Marshall, 1927) -- valid
  Atractotomus magnicornis (Fallén, 1807) -- valid
  Atractotomus magnicornis magnicornis (Fallén, 1807) -- valid
  Atractus fuliginosus (Hallowell, 1845) -- valid -- Hallowell's Ground Snake
  Atrichopogon fusinervis (Malloch, 1915) -- valid
  Atrina oldroydii Dall, 1901 -- valid -- Oldroyd penshell
  Attila spadiceus parvirostris Allen, 1900 -- valid
  Attiliosa philippiana (Dall, 1889) -- valid
  Atya dentirostris Thallwitz, 1891 -- invalid
  Atylus borealis Bousfield and Kendall, 1994 -- valid
  Atylus georgianus Bousfield and Kendall, 1994 -- valid
  Atyoida Randall, 1840 -- valid
  Atyoida bisulcata J. W. Randall, 1840 -- valid -- 'opae-kaka'ole
  Atyphella aphrogeneia (Ballantyne, 1979) -- valid
  Atyphella conspicua Ballantyne in Ballantyne and Lambkin, 2000 -- valid
  Atyphella dalmatia Ballantyne in Ballantyne and Lambkin, 2009 -- valid
  Atyphella ellioti Ballantyne in Ballantyne and Lambkin, 2000 -- valid
  Atyphella flammulans Ballantyne in Ballantyne and Lambkin, 2000 -- valid
  Atyphella guerini (Ballantyne in Ballantyne and Lambkin, 2000) -- valid
  Atyphella immaculata Ballantyne in Ballantyne and Lambkin, 2000 -- valid
  Atyphella kirakira Ballantyne in Ballantyne and Lambkin, 2009 -- valid
  Atyphella lamingtonia Ballantyne in Ballantyne and Lambkin, 2009 -- valid
  Atyphella lewisi Ballantyne in Ballantyne and Lambkin, 2000 -- valid
  Atyphella monteithi Ballantyne in Ballantyne and Lambkin, 2000 -- valid
  Atyphella rennellia (Ballantyne in Ballantyne and Lambkin, 2009) -- valid
  Atyphella similis Ballantyne in Ballantyne and Lambkin, 2000 -- valid
  Atyphella telokdalam Ballantyne in Ballantyne et al., 2019 -- valid
  Atypopenaeus bicornis Racek and Dall, 1965 -- valid
  Atypopenaeus formosus Dall, 1957 -- valid -- camarón naranja, crevette orange, orange shrimp
  Atys obscuratus Dall, 1896 -- valid -- obscure glassy-bubble
  Atys sandersoni Dall, 1881 -- valid
  Auchenipterichthys coracoideus (Eigenmann and Allen, 1942) -- valid
  Augacephalus Gallon, 2002 -- valid
  Augacephalus ezendami (Gallon, 2001) -- valid
  Aulacosternum Dallas, 1852 -- valid
  Aulacosternum nigrorubrum Dallas, 1852 -- valid
  Aulacus eocenicus Nel, Waller & De Ploëg, 2004 -- valid
  Auleutes marionis Fall, 1913 -- valid
  Aulonocara maylandi kandeensis Tawil and Allgayer, 1987 -- valid
  Aurantothrips orchidaceus (Bagnall, 1990) -- valid
  Auriparus flaviceps (Sundevall, 1850) -- valid -- Baloncillo, Verdin
  Auriparus flaviceps flaviceps (Sundevall, 1850) -- valid
  Austrachipteria marieae Colloff & Halliday, 1998 -- invalid
  Australerythrops W. M. Tattersall, 1928 -- valid
  Australerythrops paradicei W. M. Tattersall, 1928 -- valid
  Australoluciola Ballantyne in Ballantyne and Lambkin, 2013 -- valid
  Australoluciola baduria Ballantyne in Ballantyne and Lambkin, 2013 -- valid
  Australoluciola fuscamagna Ballantyne in Ballantyne and Lambkin, 2013 -- valid
  Australoluciola fuscaparva Ballantyne in Ballantyne and Lambkin, 2013 -- valid
  Australoluciola japenensis Ballantyne in Ballantyne and Lambkin, 2013 -- valid
  Australoluciola maxima Ballantyne in Ballantyne and Lambkin, 2013 -- valid
  Australoluciola orapallida (Ballantyne in Ballantyne and Lambkin, 2000) -- valid
  Australoluciola pharusaurea Ballantyne in Ballantyne and Lambkin, 2013 -- valid
  Australomysis W. M. Tattersall, 1927 -- valid
  Australomysis acuta W. M. Tattersall, 1927 -- valid
  Australopauropus Bagnall, 1935 -- invalid
  Austrocarabodes fenestratus (Wallwork, 1977) -- valid
  Austrocarabodes horridus (Wallwork, 1977) -- valid
  Austrocarabodes incrustatus (Wallwork, 1977) -- valid
  Austrocarabodes pentatrichus clavatus (Wallwork, 1977) -- invalid
  Austrochaperina septentrionalis Allison and Kraus, 2003 -- valid
  Austrotrophon Dall, 1902 -- valid
  Autodax lugubris (Hallowell, 1849) -- invalid
  Avahi meridionalis Zaramody, Fausser, Roos, Zinner, Andriaholinirina, Rabarivola, Norscia, Tattersall and Rumpler, 2006 -- valid -- Southern Woolly Lemur
  Avahi meridionalis ramanantsoavani Zaramody, Fausser, Roos, Zinner, Andriaholinirina, Rabarivola, Norscia, Tattersall and Rumpler, 2006 -- invalid
  Avahi peyrierasi Zaramody, Fausser, Roos, Zinner, Andriaholinirina, Rabarivola, Norscia, Tattersall and Rumpler, 2006 -- valid -- Peyriéras' Woolly Lemur, Peyrieras's Woolly Lemur
  Avahi ramanantsoavanai Zaramody, Fausser, Roos, Zinner, Andriaholinirina, Rabarivola, Norscia, Tattersall and Rumpler, 2006 -- invalid
  Avahi ramanantsoavani Zaramody, Fausser, Roos, Zinner, Andriaholinirina, Rabarivola, Norscia, Tattersall and Rumpler, 2006 -- valid -- Manombo Woolly Lemur
  Axarus dorneri Malloch, 1915) -- valid
  Axelella smithii (Dall, 1888) -- valid
  Axinopsida viridis (Dall, 1901) -- valid -- green axinopsid
  Axiopsis hirsutimana (Boesch and Smalley, 1972) -- invalid
  Axociella Hallmann, 1920 -- valid
  Axoclinus multicinctus Allen and Robertson, 1992 -- valid -- multibarred triplefin, tres aletas listado
  Axoclinus nigricaudus Allen and Robertson, 1991 -- valid -- Cortez triplefin, tres aletas colinegra
  Axoclinus rubinoffi Allen and Robertson, 1992 -- valid
  Axonolaimus diegoensis Allgen, 1947 -- valid
  Axonolaimus leptosoma Allgen, 1951 -- valid
  Axonolaimus tenuicollis Allgen, 1947 -- valid
  Axylophilus nucleus (Fall, 1901) -- invalid
  Aysha affinis (Blackwall, 1862) -- valid
  Aztecarpalus Ball, 1970 -- valid
  Aztecarpalus schaefferi Ball, 1970 -- valid
  Bacillochilus Gallon, 2010 -- valid
  Bacillochilus xenostridulans Gallon, 2010 -- valid
  Bactridium californicum Fall, 1917 -- valid
  Bactrocera aenigmatica (Malloch, 1931) -- valid
  Bactrocera atra (Malloch, 1938) -- valid
  Bactrocera conformis Doleschall, 1858 -- invalid
  Bactrocera distincta (Malloch, 1931) -- valid
  Bactrocera fasciatipennis Doleschall, 1856 -- invalid
  Bactrocera luteola (Malloch, 1931) -- valid
  Bactrocera maculigera Doleschall, 1858 -- invalid
  Bactrocera maculipennis Doleschall, 1856 -- invalid
  Bactrocera obliqua (Malloch, 1939) -- valid
  Bactrocera obscura (Malloch, 1931) -- valid
  Bactrocera ochrosiae (Malloch, 1942) -- valid
  Bactrocera pagdeni (Malloch, 1939) -- valid
  Bactrocera setinervis (Malloch, 1938) -- valid
  Bactrocera simulata (Malloch, 1939) -- valid
  Bactrocera unifasciata (Malloch, 1939) -- valid
  Bactrocera unipunctata (Malloch, 1939) -- valid
  Bactrocera varipes (Malloch, 1939) -- valid
  Bactrocera vespoides Doleschall, 1858 -- invalid
  Bactrocythara asarca (Dall and Simpson, 1901) -- valid
  Badister parviceps Ball, 1959 -- valid
  Badister vandykei Ball, 1959 -- valid
  Baetis buenoi Allen, 1985 -- invalid
  Baetis byblis Allen and Murvosh, 1983 -- invalid
  Baetis caelestis Allen and Murvosh, 1983 -- invalid
  Baetis caurinus Edmunds and Allen, 1957 -- invalid
  Baetis libos Allen and Murvosh, 1987 -- invalid
  Baetis notos Allen and Murvosh, 1987 -- valid
  Baetis sonora Allen and Murvosh, 1987 -- invalid
  Baetodes adustus Cohen and Allen, 1972 -- valid
  Baetodes caritus Cohen and Allen, 1972 -- valid
  Baetodes deficiens Cohen and Allen, 1972 -- valid
  Baetodes fuscipes Cohen and Allen, 1972 -- valid
  Baetodes inermis Cohen and Allen, 1972 -- valid
  Baetodes noventus Cohen and Allen, 1972 -- valid
  Baetodes pallidus Cohen and Allen, 1972 -- valid
  Baetodes pictus Cohen and Allen, 1972 -- valid
  Baetodes sigillatus Allen and Chao, 1972 -- invalid
  Baetodes tritus Cohen and Allen, 1972 -- valid
  Baetodes velmae Cohen and Allen, 1978 -- valid
  Bagauda brunneus McAtee and Malloch, 1926 -- valid
  Bagauda lucifugus McAtee and Malloch, 1926 -- valid
  Bagriella McAtee and Malloch, 1923 -- valid
  Bagriella ornata McAtee and Malloch, 1923 -- valid
  Bailya intricata (Dall, 1884) -- valid -- intricate phos
  Balanus cariosus (Pallas, 1788) -- invalid
  Balionycterini Almeida, Giannini, DeSalle and Simmons, 2009 -- valid
  Banksinoma ovata (Wallwork, 1962) -- valid
  Barce aberrans (McAtee and Malloch, 1925) -- valid
  Barce neglecta (McAtee and Malloch, 1925) -- valid
  Baris apricoides Fall, 1913 -- invalid
  Baris heterodoxa Fall, 1901 -- valid
  Baris monticola Fall, 1901 -- valid
  Baris nevadica Fall, 1913 -- valid
  Baris pruinina Fall, 1913 -- valid
  Baris tecta Fall, 1913 -- valid
  Baris texana Fall, 1913 -- valid
  Baryphyma pratense (Blackwall, 1861) -- valid
  Basiliola Dall, 1908 -- valid
  Basiliola beecheri (Dall, 1908) -- valid
  Basilissa cinctellum (Dall, 1889) -- valid
  Basilissa rhyssa Dall, 1927 -- valid
  Basilissa watsoni Dall, 1927 -- valid
  Basilobelba africana Wallwork, 1961 -- valid
  Basilobelba retiaria symmetrica Wallwork, 1962 -- valid
  Basipodellidae Boxshall & Lincoln, 1983 -- valid
  Bassaricyon J. A. Allen, 1876 -- valid -- Olingos
  Bassaricyon gabbii J. A. Allen, 1876 -- valid -- Northern Olingo, Olingo
  Bassaricyon richardsoni J. A. Allen, 1908 -- invalid
  Bassariscus astutus octavus Hall, 1926 -- valid
  Basterotia corbuloidea Dall, 1899 -- valid -- corbula sportella
  Basterotia floridana Dall, 1903 -- valid
  Bathyarca glomerula (Dall, 1881) -- valid -- little-ball bathyark
  Bathyarca inaequalis (Dall, 1927) -- valid
  Bathyarca nucleator Dall, 1908 -- invalid
  Bathyarca orbiculata (Dall, 1881) -- valid
  Bathybembix bairdii (Dall, 1889) -- valid
  Bathybuccinum ovulum (Dall, 1895) -- valid
  Bathycopea Tattersall, 1905 -- valid
  Bathycopea typhlops Tattersall, 1905 -- valid
  Bathylaimella Allgen, 1930 -- valid
  Bathylaimella simplex Allgen, 1930 -- valid
  Bathylaimoides Allgen, 1957 -- invalid
  Bathylaimus jacobseni Allgen, 1954 -- valid
  Bathylaimus latilaimus Allgen, 1947 -- valid
  Bathylaimus longisetosus (Allgen, 1929) -- valid
  Bathylaimus parafilicaudatus Allgen, 1935 -- valid
  Bathylaimus tenuicaudatus (Allgen, 1933) -- valid
  Bathylaimus zostericola (Allg4n, 1933) -- valid
  Bathymysis W. M. Tattersall, 1907 -- valid
  Bathymysis helgae W. M. Tattersall, 1907 -- valid
  Bathymysis renoculata W. M. Tattersall, 1951 -- invalid
  Bathyphantes gracilis (Blackwall, 1841) -- valid
  Bathyprion Marshall, 1966 -- valid
  Bathyprion danae Marshall, 1966 -- valid -- fangtooth smoothhead
  Bathyraja aguja (Kendall and Radcliffe, 1912) -- valid
  Bathysolen nubilus (Fallén, 1807) -- valid
  Bathytoma viabrunnea (Dall, 1889) -- valid
  Batillaria degenerata Dall, 1894 -- invalid
  Batillipes adriaticus Grimaldi de Zio, Morone De Lucia, D'Addabbo Gallo and Grimaldi, 1979 -- valid
  Batillipes africanus Morone De Lucia, D'Addabbo Gallo and Grimaldi de Zio, 1988 -- valid
  Batillipes marcelli Morone De Lucia, D'Addabbo Gallo and Grimaldi de Zio, 1988 -- valid
  Batillipes spinicauda Gallo D'Addabbo, Sandulli and de Zio Grimaldi, 2005 -- valid
  Batrachophrynus patagonicus Gallardo, 1962 -- invalid
  Batrachylidae Gallardo, 1965 -- valid
  Batrachylinae Gallardo, 1965 -- invalid
  Batrisodes aphenogastri Fall, 1912 -- valid
  Bavia sexpunctata (Doleschall, 1859) -- valid
  Bdellocephala fusca (Pallas, 1774) -- invalid
  Bdellocephala punctata (Pallas, 1774) -- valid
  Beatogordius irregularis Miralles, 1972 -- valid
  Beatogordius variabilis Miralles, 1981 -- valid
  Bebaeus Dallas, 1851 -- valid
  Bebaeus punctipes Dallas, 1851 -- valid
  Beckerina aliena Malloch, 1924 -- valid
  Beckerina luteola Malloch, 1919 -- valid
  Beckerina orphnephiloides Malloch, 1912 -- valid
  Beckerina similata Malloch, 1923 -- valid
  Bellardia bisetosa (Hall, 1948) -- valid
  Bellardia townsendi (Hall, 1948) -- valid
  Bellaspira grippi (Dall, 1908) -- valid
  Bellaspira pentagonalis (Dall, 1889) -- valid -- orange-rib drillia
  Belloppia beemanensis (Wallwork, 1964) -- valid
  Bellucina Dall, 1901 -- invalid
  Belminus laportei Lent, Jurberg and Carcavallo, 1995 -- valid
  Belomicrus radoszkowskyi (Dalla Torre, 1897) -- valid
  Bembidion hesperium Fall, 1910 -- valid
  Bembidion mckinleyi Fall, 1926 -- valid
  Bembidion mckinleyi mckinleyi Fall, 1926 -- valid
  Bembidion obtusidens Fall, 1922 -- valid
  Bembidion rolandi Fall, 1922 -- valid
  Bembidion sejunctum semiaureum Fall, 1922 -- valid
  Bembidion yukonum Fall, 1926 -- valid
  Bembidion zephyrum Fall, 1910 -- valid
  Benibotarus thoracicus (Randall, 1838) -- valid
  Bensonocythere sapeloensis (Hall, 1965) -- valid
  Bentharca asperula (Dall, 1881) -- valid
  Bentharca sagrinata (Dall, 1886) -- valid
  Benthobia Dall, 1889 -- valid
  Benthobia tryonii Dall, 1889 -- valid
  Benthomangelia antonia (Dall, 1881) -- valid
  Benthomangelia bandella (Dall, 1881) -- valid
  Benthonella Dall, 1889 -- valid
  Benthonella fischeri Dall, 1889 -- valid
  Benthonella gaza Dall, 1889 -- valid
  Benthonella nisonis Dall, 1889 -- valid -- regal benthonella
  Benthonellania Dall, 1889 -- valid
  Benthonellania acuticostata (Dall, 1889) -- valid
  Benthophilus macrocephalus (Pallas, 1787) -- valid
  Beraeidae Wallengren, 1891 -- valid
  Bercaeopsis ontariensis (Hall, 1932) -- valid
  Bercaeopsis paulina (Hall, 1937) -- valid
  Bergemesa stramineipes (McAtee and Malloch, 1925) -- valid
  Beringius Dall, 1886 -- valid
  Beringius aleuticus Dall, 1895 -- valid
  Beringius crebricostatus (Dall, 1877) -- valid -- thick-cord whelk
  Beringius frielei Dall, 1895 -- invalid
  Beringius incisus Dall, 1907 -- invalid
  Beringius indentatus Dall, 1919 -- valid
  Beringius kennicottii (Dall, 1871) -- valid
  Beringius malleatus (Dall, 1884) -- invalid -- hammered whelk
  Beringius marshalli (Dall, 1919) -- invalid
  Beringius undata Dall, 1919 -- invalid
  Beringius undatus Dall, 1919 -- valid
  Beringobdella Caballero, 1974 -- valid
  Berisina Malloch, 1928 -- valid
  Berisina maculipennis (Malloch, 1928) -- valid
  Berlandina nigromaculata (Blackwall, 1865) -- valid
  Bernardina Dall, 1910 -- valid
  Bernardina bakeri Dall, 1910 -- valid -- baker bernard-clam, Baker bernardclam
  Bersinia maculipennis Malloch, 1928 -- invalid
  Berthella californica (Dall, 1900) -- valid -- California sidegill slug
  Besla Dall and Bartsch, 1904 -- valid
  Betta persephone Schaller, 1986 -- valid
  Betta strohi Schaller and Kottelat, 1989 -- valid
  Betta tussyae Schaller, 1985 -- valid
  Bezzia albidorsata Malloch, 1915 -- valid
  Bezzia apicata Malloch, 1914 -- valid
  Bezzia cockerelli Malloch, 1915 -- valid
  Bezzia dentata Malloch, 1914 -- valid
  Bezzia flavitarsis Malloch, 1914 -- valid
  Bhanotia pauciradiata Allen and Kuiter, 1995 -- valid
  Biancolina Della Valle, 1893 -- valid
  Bianor simplex (Blackwall, 1865) -- valid
  Biasticus nigricollis (Dallas, 1850) -- valid
  Bicellaria spuria (Fallen, 1816) -- valid
  Bidessus decoratus Fall, 1917 -- invalid
  Bidessus four-pustulatus Fall, 1917 -- invalid
  Bidessus ornatellus Fall, 1917 -- invalid
  Bidessus pullus floridanus Fall, 1917 -- invalid
  Bidessus quadripustulatus Fall, 1917 -- invalid
  Bidessus suburbanus Fall, 1917 -- invalid
  Bifax Greenfield, Mee and Randall, 1994 -- valid
  Bifax lacinia Greenfield, Mee and Randall, 1994 -- valid
  Bigotomyia californiensis Malloch, 1923 -- invalid
  Bimeria humilis Allman, 1877 -- invalid
  Binodoxys acalephae (Marshall, 1896) -- valid
  Bipassalozetes californicus (Wallwork, 1972) -- valid
  Bipassalozetes neomexicanus (Wallwork, Weems & Kamill, 1984) -- valid
  Bipassalozetes neomexicanus neomexicanus (Wallwork, Weems & Kamill, 1984) -- valid
  Bipassalozetes orientalis (Wallwork, Weems & Kamill, 1984) -- valid
  Bipassalozetes pectinatus (Wallwork, 1964) -- valid
  Bisetocreagris chinacavernicola (Schawaller, 1995) -- valid
  Bisetocreagris nuratiensis Dashdamirov and Schawaller, 1992 -- valid
  Bisetocreagris thailandica Schawaller, 1994 -- valid
  Bitheca agarica Marshall, 1987 -- valid
  Bitheca boleta Marshall, 1987 -- valid
  Bitheca fundata Marshall, 1987 -- valid
  Bithynis grandimanus (Randall, 1840) -- invalid
  Bittium paganicum (Dall, 1919) -- valid
  Bittium vancouverense Dall and Bartsch, 1910 -- valid
  Bledius apicalis Fall, 1910 -- invalid
  Bledius arizonensis Fall, 1910 -- invalid
  Bledius clarus Fall, 1901 -- valid
  Bledius confinis Fall, 1910 -- invalid
  Bledius consimilis Fall, 1910 -- valid
  Bledius deceptivus Fall, 1901 -- invalid
  Bledius dissimilis Fall, 1910 -- invalid
  Bledius episcopalis Fall, 1910 -- valid
  Bledius gradatus Fall, 1910 -- invalid
  Bledius medialis Fall, 1910 -- invalid
  Bledius mysticus Fall, 1910 -- valid
  Bledius persimilis Fall, 1910 -- valid
  Bledius philadelphicus Fall, 1919 -- valid
  Bledius piceus Fall, 1910 -- invalid
  Bledius regularis Fall, 1910 -- invalid
  Bledius relictus Fall, 1901 -- invalid
  Bledius rusticus Fall, 1901 -- invalid
  Bledius specularis Fall, 1910 -- invalid
  Bledius tallaci Fall, 1910 -- valid
  Bledius transitus Fall, 1919 -- invalid
  Blennius sanguinolentus Pallas, 1814 -- invalid -- redspeckled blenny, redspeckled blenny
  Blepharidopterus angulatus (Fallén, 1807) -- valid
  Blepharipoda Randall, 1840 -- valid
  Blepharipoda occidentalis J. W. Randall, 1840 -- valid -- spiny mole crab
  Blepsias cirrhosus (Pallas, 1814) -- valid -- silverspotted sculpin
  Boaedon virgatus (Hallowell, 1854) -- valid -- Dark-bellied House Snake, Hallowell's House Snake
  Boana hutchinsi (Pyburn and Hall, 1984) -- valid
  Boana jaguariaivensis (Caramaschi, Cruz and Segalla, 2010) -- valid
  Bodianus bimaculatus Allen, 1973 -- valid
  Bodianus russelli Gomon and Randall, 1975 -- invalid
  Bognenia Allgen, 1932 -- invalid
  Bognenia litoralis Allgen, 1932 -- invalid
  Boiga andamanensis (Wall, 1909) -- valid -- Andaman Cat Snake
  Boiga beddomei (Wall, 1909) -- valid -- Beddome's Cat Snake
  Boiga ochracea stoliczkae (Wall, 1909) -- valid
  Boiga quincunciata (Wall, 1908) -- valid
  Boleophthalmus boddarti (Pallas, 1770) -- valid
  Bolitoglossa yariguiensis Meza-Joya, Hernández-Jaimes and Ramos-Pallares, 2017 -- valid
  Bolitoglossinae Hallowell, 1856 -- invalid
  Bolivaridia somalicum Yin and Dallai, 1985 -- valid
  Boloria acrocnema Gall and Sperling, 1980 -- invalid -- Uncompahgre fritillary Butterfly
  Boloria bellona jenistai D. Stallings and Turner, 1947 -- valid
  Boloria improba acrocnema Gall and Sperling, 1980 -- valid -- 'Uncompahgre' Dingy Fritillary
  Boloria natazhati nabokovi D. Stallings and Turner, 1947 -- valid
  Bolyphantes alticeps (Sundevall, 1833) -- valid
  Bolyphantes luteolus (Blackwall, 1833) -- valid
  Bombus agrorum moorselensis Ball, 1914 -- invalid
  Bombus chinensis Dalla Torre, 1890 -- invalid
  Bombus columbicus Dalla Torre, 1890 -- invalid
  Bombus confusus paradoxus Dalla Torre, 1882 -- invalid
  Bombus emiliae Dalla Torre, 1890 -- invalid
  Bombus eurynotus Dalla Torre, 1882 -- invalid
  Bombus eurynotus ruderatus Dalla Torre, 1882 -- invalid
  Bombus fragrans (Pallas, 1771) -- valid
  Bombus helleri Dalla Torre, 1882 -- invalid
  Bombus helleri collaris Dalla Torre, 1882 -- invalid
  Bombus hortorum meridionalis Dalla Torre, 1879 -- invalid
  Bombus japonicus Dalla Torre, 1890 -- invalid
  Bombus lederi Dalla Torre, 1882 -- invalid
  Bombus manaliensis Kumar and Lall, 2004 -- invalid
  Bombus mesomelas wendica Dalla Torre, 1879 -- invalid
  Bombus muscorum staudingeri Dalla Torre, 1882 -- invalid
  Bombus radoszkowskyi Dalla Torre, 1890 -- invalid
  Bombus rogenhoferi Dalla Torre, 1882 -- invalid
  Bombus secundus Dalla Torre, 1890 -- invalid
  Bombus terrestris dalmatinus Dalla Torre, 1882 -- valid
  Bombus terrestris lycocryptarum Ball, 1914 -- invalid
  Bombus trinominatus Dalla Torre, 1890 -- valid
  Bombus variabilis aurantiacus Dalla Torre, 1882 -- invalid
  Bombylius albopenicillatoides (Hall and Evenhuis, 1981) -- valid
  Bombylius aleophilus (Hall and Evenhuis, 1981) -- valid
  Bombylius altimyia Hall and Evenhuis, 1980 -- valid
  Bombylius arizonicus Hall, 1980 -- valid
  Bombylius balion Hall and Evenhuis, 1980 -- valid
  Bombylius ballmeri Hall and Evenhuis, 1980 -- valid
  Bombylius calus (Hall and Evenhuis, 1981) -- valid
  Bombylius coahuilensis (Hall and Evenhuis, 1981) -- valid
  Bombylius flavifacies Hall and Evenhuis, 1980 -- valid
  Bombylius frommerorum Hall and Evenhuis, 1980 -- valid
  Bombylius hesychastes (Hall and Evenhuis, 1981) -- valid
  Bombylius iphiculus (Hall and Evenhuis, 1981) -- valid
  Bombylius japygus Hall and Evenhuis, 1980 -- valid
  Bombylius moctezuma Hall and Evenhuis -- valid
  Bombylius navajo (Hall and Evenhius) -- valid
  Bombylius neopallidus Hall and Evenhuis -- valid
  Bombylius neopulcher Hall and Evenhuis -- valid
  Bombylius nephthys (Hall and Evenhuis, 1980) -- valid
  Bombylius nevadensis Hall and Evenhuis, 1980 -- valid
  Bombylius nicholsonae Hall and Evenhuis, 1980 -- valid
  Bombylius painterorum (Hall and Evenhuis, 1981) -- valid
  Bombylius paradoxus (Hall and Evenhuis, 1981) -- valid
  Bombylius plichtai Hall and Evenhuis, 1980 -- valid
  Bombylius pyrrhothrix (Hall and Evenhuis, 1981) -- valid
  Bombylius rutilous (Hall. 1975) -- valid
  Bombylius rutilus (Hall, 1975) -- valid
  Bombylius septentrionalis (Hall and Evenhuis, 1981) -- valid
  Bombylius submaculosus (Hall and Evenhuis, 1981) -- valid
  Bombylius taxconesis (Hall and Evenhuis, 1981) -- valid
  Bonellia sabulosa Dartnall, 1977 -- valid
  Boninia neotethydis Curini-Galletti and Campus, 2007 -- valid
  Boophis calcaratus Vallan, Vences and Glaw, 2010 -- valid
  Boophis feonnyala Glaw, Vences, Andreone and Vallan, 2001 -- valid
  Boophis haematopus Glaw, Vences, Andreone and Vallan, 2001 -- valid
  Boophis liami Vallan, Vences and Glaw, 2003 -- valid
  Boophis lichenoides Vallan, Glaw, Andreone and Cadle, 1998 -- valid
  Boophis picturatus Glaw, Vences, Andreone and Vallan, 2001 -- valid
  Boophis pyrrhus Glaw, Vences, Andreone and Vallan, 2001 -- valid
  Boophis solomaso Vallan, Vences and Glaw, 2003 -- valid
  Boophis vittatus Glaw, Vences, Andreone and Vallan, 2001 -- valid
  Borborillus scriptus (Malloch, 1915) -- valid
  Borboropactus cinerascens (Doleschall, 1859) -- valid
  Borboropactus cinerascens cinerascens (Doleschall, 1859) -- valid
  Borboropactus vulcanicus (Doleschall, 1859) -- valid
  Borborus arctica Malloch, 1913 -- invalid
  Borborus brevisetus Malloch, 1913 -- invalid
  Borborus neglecta Malloch, 1913 -- invalid
  Borborus scripta Malloch, 1915 -- invalid
  Borborus subaptera Malloch, 1923 -- invalid
  Boreocingula martyni (Dall, 1887) -- valid
  Boreomicrolaimoides Allgen, 1954 -- valid
  Boreomysis acuminata O. Tattersall, 1955 -- valid
  Boreomysis bispinosa O. Tattersall, 1955 -- valid
  Boreomysis brucei W. Tattersall, 1913 -- valid
  Boreomysis illigi O. Tattersall, 1955 -- valid
  Boreomysis insolita O. Tattersall, 1955 -- valid
  Boreomysis tattersalli O. Tattersall, 1955 -- valid
  Boreomysis verrucosa W. M. Tattersall, 1939 -- valid
  Boreonectes coelamboides (Fall, 1923) -- invalid
  Boreonectes expositus (Fall, 1923) -- valid
  Boreonectes panaminti (Fall, 1923) -- invalid
  Boreotrophon aculeatus lacunellus (Dall, 1889) -- valid
  Boreotrophon alaskanus Dall, 1902 -- valid
  Boreotrophon avalonensis Dall, 1902 -- valid -- Avalon trophon
  Boreotrophon bentleyi Dall, 1908 -- valid
  Boreotrophon beringi Dall, 1902 -- invalid -- tabulate trophon
  Boreotrophon cymatus Dall, 1902 -- invalid -- wavy trophon
  Boreotrophon disparilis (Dall, 1891) -- valid -- girdled trophon
  Boreotrophon elegantulus (Dall, 1907) -- valid
  Boreotrophon eucymatus Dall, 1902 -- valid -- grooved trophon
  Boreotrophon macouni (Dall, 1910) -- valid -- corded trophon
  Boreotrophon muriciformis (Dall, 1877) -- invalid
  Boreotrophon pacificus Dall, 1902 -- invalid -- elegant trophon
  Boreotrophon rotundatus (Dall, 1902) -- valid -- rotund trophon
  Boreotrophon smithi (Dall, 1902) -- invalid
  Boreotrophon staphylinus (Dall, 1919) -- valid -- carrot trophon
  Boreotrophon tripherus Dall, 1902 -- valid -- rotund trophon
  Boreotrophon truncatus pacificus Dall, 1902 -- invalid
  Boromys torrei Allen, 1917 -- valid -- Torre's Cave Rat
  Borsonella Dall, 1918 -- valid
  Borsonella civitella Dall, 1919 -- valid
  Borsonella coronadoi (Dall, 1908) -- valid
  Borsonella diegensis (Dall, 1908) -- valid
  Borsonella nicoli Dall, 1919 -- valid
  Borsonella nychia Dall, 1919 -- valid
  Borsonella omphale Dall, 1919 -- valid
  Boselaphus tragocamelus (Pallas, 1766) -- valid -- blue bull, nilgai, Nilgai
  Bostaera Ball, 1902 -- valid
  Bostaera nasuta Ball, 1902 -- valid
  Botanobia bispina Malloch, 1918 -- invalid
  Botanobia halterata Malloch, 1913 -- invalid
  Botanobia hinkleyi Malloch, 1915 -- invalid
  Botanobia insularis Malloch, 1914 -- invalid
  Botanobia marginalis Malloch, 1914 -- invalid
  Botanobia proxima Malloch, 1914 -- invalid
  Botanobia spiniger Malloch, 1918 -- invalid
  Botanobia varihalterata Malloch, 1913 -- invalid
  Botanophila aliena (Malloch, 1920) -- valid
  Botanophila appendiculata (Malloch, 1920) -- valid
  Botanophila atra (Malloch, 1919) -- valid
  Botanophila atrovittata (Malloch, 1920) -- valid
  Botanophila marginella (Malloch, 1918) -- valid
  Botanophila parvicornis (Malloch, 1920) -- valid
  Botanophila piloseta (Malloch, 1918) -- valid
  Botanophila protuberans (Malloch, 1919) -- valid
  Botanophila sericea (Malloch, 1920) -- valid
  Botanophila spinidens (Malloch, 1920) -- valid
  Botanophila striolata (Fallen, 1904) -- valid
  Botanophila subnitida (Malloch, 1920) -- valid
  Bothaella alongi (Galliard and Ngu, 1947) -- invalid
  Bothriomolus Hallez, 1909 -- valid
  Bothriomolus constrictus Hallez, 1909 -- valid
  Bothrops flavoviridis Hallowell, 1861 -- invalid
  Botryllus schlosseri (Pallas, 1766) -- valid
  Botulina Dall, 1889 -- invalid
  Botulisaccus Caballero, et al, 1955 -- valid
  Bougainvillia muscus (Allman, 1863) -- valid
  Bowmaniella johnsoni (W. M. Tattersall, 1937) -- valid
  Bowmaniella mexicana (W. M. Tattersall, 1951) -- valid
  Brachicara Marschall, 1873 -- invalid
  Brachicoma devia (Fallen, 1820) -- valid
  Brachionus Pallas, 1766 -- valid
  Brachionus calyciflorus Pallas, 1766 -- valid
  Brachionus capsuliflorus Pallas -- valid
  Brachycentrus etowahensis Wallace, 1971 -- valid
  Brachycoelium Stiles and Hassall, 1898 -- valid
  Brachycranion corpulentum Hallowell, 1854 -- invalid
  Brachymystax lenok (Pallas, 1773) -- valid
  Brachyopa ferruginea (Fallen, 1817) -- valid
  Brachyophidium Wall, 1921 -- invalid
  Brachyophidium rhodogaster Wall, 1921 -- invalid
  Brachypauropus lubbocki Bagnall, 1914 -- valid
  Brachyramphus perdix (Pallas, 1811) -- valid -- Guillemot ŕ long bec, Long-billed Murrelet
  Brachyseps Erens, Miralles, Glaw, Catrou and Vences, 2017 -- valid
  Brachysomophis longipinnis McCosker and Randall, 2001 -- valid
  Brachysomophis umbonis McCosker and Randall, 2001 -- valid
  Bracon bembeciae (Walley, 1932) -- valid
  Bracon laspeyresiae (Walley, 1935) -- valid
  Bracon nitidulus Dalla Torre, 1883 -- valid
  Bradycellus (Lipalocellus) Ball and Bousquet, 2000 -- valid
  Bradycellus conformis (Fall, 1905) -- valid
  Bradycellus frosti (Fall, 1930) -- invalid
  Bradycellus intermedius (Fall, 1905) -- valid
  Bradycellus obtusus (Fall, 1905) -- valid
  Bradycellus politus (Fall, 1905) -- valid
  Bradyetes pacificus Ohtsuka, Boxshall and Shimomura, 2005 -- valid
  Bradypterus sylvaticus Sundevall, 1860 -- valid -- Knysna Warbler
  Bradypterus sylvaticus sylvaticus Sundevall, 1860 -- valid
  Bradypterus victorini Sundevall, 1860 -- invalid
  Bradysia unguicauda (Malloch, 1923) -- valid
  Branchiobdella italica Canegallo, 1928 -- valid
  Branchiostoma caribaeum Sundevall, 1853 -- valid
  Branchiostoma elongatum (Sundevall, 1852) -- valid
  Branchiostoma lanceolatum (Pallas, 1774) -- valid
  Branta ruficollis (Pallas, 1769) -- valid -- Red-breasted Goose
  Brasilister Dégallier, 1999 -- valid
  Brasilister flechtmanni Dégallier, 1999 -- valid
  Brevinucula verrilli (Dall, 1886) -- valid
  Brevipogon confusus (Fall, 1901) -- valid
  Briareum asbestinum (Pallas, 1766) -- valid -- corky sea finger, corky seafinger, deadman's fingers
  Bromeloecia seltzeri Marshall, 1983 -- valid
  Bromeloecia tarsiglossa Marshall, 1983 -- valid
  Bromeloecia winnemana (Malloch, 1925) -- valid
  Bronchocela orlovi Hallermann, 2004 -- valid -- Orlov's Forest Lizard
  Bronchocela rubrigularis Hallermann, 2009 -- valid
  Bronchocela vietnamensis Hallermann and Orlov, 2005 -- valid
  Brontaea cilifera (Malloch, 1920) -- valid
  Brookesia brunoi Crottini, Miralles, Glaw, Harris, Lima and Vences, 2012 -- valid
  Bruceharrisonius aureostriatus (Doleschall, 1857) -- invalid
  Brumoides histrio (Fall, 1901) -- valid
  Bryconamericus eigenmanni (Evermann and Kendall, 1906) -- valid
  Bryconamericus osgoodi Eigenmann and Allen, 1942 -- valid
  Bryconops colanegra Chernoff and Machado-Allison, 1999 -- valid
  Bryconops colaroja Chernoff and Machado-Allison, 1999 -- valid
  Bryconops disruptus Machado-Allison and Chernoff, 1997 -- valid
  Bryconops humeralis Machado-Allison, Chernoff and Buckup, 1996 -- valid
  Bryconops imitator Chernoff and Machado-Allison in Chernoff, Machado-Allison, Provenzano, Willink and Petry, 2002 -- valid
  Bryconops vibex Machado-Allison, Chernoff and Buckup, 1996 -- valid
  Bryophaenocladius flavoscutellatus (Malloch, 1915) -- valid
  Bryophaenocladius pleuralis (Malloch, 1915) -- valid
  Bryophaenocladius subparallelus (Malloch, 1915) -- valid
  Bryophryne mancoinca Mamani, Catenazzi, Ttito, Mallqui and Chaparro, 2017 -- valid
  Buccinum aleuticum Dall, 1895 -- valid -- Aleut whelk
  Buccinum angulosum subcostatum Dall, 1885 -- invalid
  Buccinum angulosum transliratum Dall, 1919 -- invalid
  Buccinum baerii polium Dall, 1907 -- valid
  Buccinum bulimuloideum Dall, 1907 -- valid
  Buccinum castaneum Dall, 1877 -- invalid
  Buccinum castaneum castaneum Dall, 1877 -- invalid -- chestnut whelk
  Buccinum castaneum fluctuatum Dall, 1919 -- invalid
  Buccinum castaneum incisulum Dall, 1919 -- invalid
  Buccinum castaneum triplostephanum Dall, 1919 -- invalid
  Buccinum chartium Dall, 1919 -- valid
  Buccinum cnismatopleura Dall, 1919 -- invalid
  Buccinum cnismatum Dall, 1907 -- valid
  Buccinum diplodetum Dall, 1907 -- valid
  Buccinum eugrammatum Dall, 1907 -- valid -- lirate whelk
  Buccinum fischerianum Dall, 1871 -- invalid
  Buccinum fringillum Dall, 1877 -- valid -- finch whelk
  Buccinum fucanum Dall, 1907 -- invalid
  Buccinum kadiakense Dall, 1907 -- valid -- kodiak whelk
  Buccinum lyperum Dall, 1919 -- invalid
  Buccinum normale Dall, 1885 -- valid
  Buccinum oedematum Dall, 1907 -- valid -- swollen whelk, swollen whelk
  Buccinum onismatopleura Dall, 1919 -- invalid
  Buccinum orotundum Dall, 1907 -- valid
  Buccinum ovulum Dall, 1895 -- invalid
  Buccinum parallelum Dall, 1919 -- invalid
  Buccinum pemphigus Dall, 1907 -- valid
  Buccinum pemphigus major Dall, 1919 -- valid
  Buccinum pemphigus orotundum Dall, 1907 -- valid
  Buccinum pemphigus pemphigus Dall, 1907 -- valid
  Buccinum percrassum Dall, 1883 -- valid -- crude whelk
  Buccinum physematum Dall, 1919 -- valid
  Buccinum picturatum Dall, 1877 -- valid -- painted whelk
  Buccinum planeticum Dall, 1919 -- valid -- wandering whelk
  Buccinum rhodium Dall, 1919 -- invalid
  Buccinum rondinum Dall, 1919 -- valid
  Buccinum rossellinum Dall, 1919 -- valid
  Buccinum sigmatopleura Dall, 1907 -- valid
  Buccinum simulatum Dall, 1907 -- valid
  Buccinum solenum Dall, 1919 -- valid
  Buccinum strigillatum Dall, 1891 -- valid
  Buccinum strigillatum fucanum Dall, 1907 -- valid -- juanmore whelk
  Buccinum strigillatum strigillatum Dall, 1891 -- valid
  Buccinum tenellum Dall, 1883 -- valid
  Buccinum viridum Dall, 1889 -- valid -- turban whelk, turban whelk
  Buccolaimus Allgen, 1959 -- valid
  Buccolaimus grahami Allgen, 1959 -- valid
  Bucephalina Malloch, 1919 -- valid
  Buceros epirhinus Sundevall, 1850 -- invalid
  Buceros rufirostris Sundevall, 1850 -- invalid
  Buergeria japonica (Hallowell, 1861) -- valid
  Bufo arenarum chaguar Gallardo, 1965 -- invalid
  Bufo beebei Gallardo, 1965 -- invalid
  Bufo bufo verrucosissima (Pallas, 1814) -- invalid
  Bufo cachinnans (Pallas, 1814) -- invalid
  Bufo cruentus (Pallas, 1814) -- invalid
  Bufo fernandezae Gallardo, 1957 -- invalid
  Bufo gnustae Gallardo, 1967 -- invalid
  Bufo granulosus azarai Gallardo, 1965 -- invalid
  Bufo granulosus barbouri Gallardo, 1965 -- invalid
  Bufo granulosus beebei Gallardo, 1965 -- invalid
  Bufo granulosus fernandezae Gallardo, 1957 -- invalid
  Bufo granulosus goeldii Gallardo, 1965 -- invalid
  Bufo granulosus humboldti Gallardo, 1965 -- invalid
  Bufo granulosus lutzi Gallardo, 1965 -- invalid
  Bufo granulosus merianae Gallardo, 1965 -- invalid
  Bufo granulosus mini Gallardo, 1967 -- invalid
  Bufo granulosus minor Gallardo, 1965 -- invalid
  Bufo granulosus mirandaribeiroi Gallardo, 1965 -- invalid
  Bufo griseus Hallowell, 1861 -- invalid
  Bufo humbolti Gallardo, 1965 -- invalid
  Bufo maculatus Hallowell, 1854 -- invalid
  Bufo manicorensis Gallardo, 1961 -- invalid
  Bufo melanogaster Hallowell, 1861 -- invalid
  Bufo pentoni tihamicus Balletto and Cherchi, 1973 -- invalid
  Bufo quechua Gallardo, 1961 -- invalid
  Bufo regularis maculatus Hallowell, 1854 -- invalid
  Bufo ridibundus (Pallas, 1771) -- invalid
  Bufo scorteccii Balletto and Cherchi, 1970 -- valid
  Bufo sitibundus (Pallas, 1771) -- invalid
  Bufo spinulosus altiperuvianus Gallardo, 1961 -- invalid
  Bufo tihamicus Balletto and Cherchi, 1973 -- invalid
  Bufo variabilis (Pallas, 1769) -- invalid
  Bufo variabilis sitibunda (Pallas, 1771) -- invalid
  Bufo verrucosissimus (Pallas, 1814) -- valid -- Caucasian Toad
  Bufo verrucosissimus verrucosissimus (Pallas, 1814) -- invalid
  Bufo vespertinus (Pallas, 1771) -- invalid
  Bufotes variabilis (Pallas, 1769) -- valid
  Bufotes variabilis variabilis (Pallas, 1769) -- invalid
  Bulbonaricus brauni (Dawson and Allen, 1978) -- valid
  Bulbopharyngiella Allgen, 1929 -- invalid
  Bulla abyssicola Dall, 1881 -- valid
  Bulla clausa Dall, 1889 -- valid -- imperforate bubble
  Bulla eburnea Dall, 1881 -- valid
  Bulla quoyana Dall, 1919 -- invalid
  Bungarus caeruleus magnimaculata Wall and Evans, 1901 -- invalid
  Bungarus magnimaculatus Wall and Evans, 1901 -- valid -- Burmese Krait
  Bungarus niger Wall, 1908 -- valid -- Greater Black Krait
  Bungarus sindanus walli Wall, 1907 -- invalid
  Bungarus walli Wall, 1907 -- valid -- Sind Krait
  Bunocephalus bifidus Eigenmann in Eigenmann and Allen, 1942 -- valid
  Bunomys andrewsi (J. A. Allen, 1911) -- valid -- Andrew's Bunomys
  Bursa calcipicta Dall, 1908 -- valid
  Bushia Dall, 1886 -- valid
  Bushia elegans (Dall, 1886) -- valid -- elegant bushclam
  Butastur rufipennis (Sundevall, 1850) -- valid -- Grasshopper Buzzard
  Butorides rufiventris (Sundevall, 1850) -- invalid
  Byrrhodes facilis (Fall, 1905) -- valid
  Byrrhodes fallax (Fall, 1905) -- valid
  Byrrhodes levisternus (Fall, 1905) -- valid
  Byrrhodes ulkei (Fall, 1905) -- valid
  Cabillus caudimacula Greenfield and Randall, 2004 -- valid
  Cacajao roosevelti J. A. Allen, 1914 -- invalid
  Cachexia guyanense Dégallier, 2004 -- valid
  Cachexia guyanensis Dégallier, 2004 -- invalid
  Caducifer Dall, 1904 -- valid
  Cadulus acus Dall, 1889 -- valid
  Cadulus aequalis Dall, 1881 -- valid
  Cadulus agassizii Dall, 1881 -- valid
  Cadulus albicomatus Dall, 1890 -- valid
  Cadulus amiantus Dall, 1889 -- valid
  Cadulus cucurbitus Dall, 1881 -- valid
  Cadulus gracilis Dall, 1889 -- invalid
  Cadulus greenlawi Dall, 1889 -- valid
  Cadulus hepburni (Dall, 1897) -- valid
  Cadulus minusculus Dall, 1889 -- valid
  Cadulus proculum Dall, 1889 -- valid
  Cadulus quadridentatus Dall, 1881 -- valid
  Cadulus tolmiei (Dall, 1897) -- valid
  Cadulus tolmiei tolmiei (Dall, 1897) -- valid
  Cadulus watsoni Dall, 1881 -- valid
  Caecidotea kawamurai Tattersall, 1921 -- valid
  Caecincola Marshall and Gilbert, 1905 -- valid
  Caecopilumnus crassipes (J. W. Randall, 1840) -- valid
  Caecum californicum Dall, 1885 -- valid -- California caecum
  Caecum carolinianum Dall, 1892 -- valid -- Carolina caecum
  Caecum cingulatum Dall, 1892 -- invalid
  Caecum coronellum Dall, 1892 -- invalid
  Caecum lermondi Dall, 1924 -- invalid
  Caecum orcutti (Dall, 1885) -- valid
  Caecum tortile Dall, 1892 -- valid -- twisted caecum
  Caelorinchus geronimo Marshall and Iwamoto, 1973 -- valid
  Caelorinchus polli Marshall and Iwamoto, 1973 -- valid
  Caelorinchus ventrilux Marshall and Iwamoto, 1973 -- valid
  Caenis bajaensis Allen and Murvosh, 1983 -- valid
  Caenocara blanchardi Fall, 1905 -- valid
  Caenocara frontale Fall, 1905 -- valid
  Caenocara ineptum Fall, 1905 -- valid
  Caenocara neomexicanum Fall, 1905 -- valid
  Caenocara ovale Fall, 1905 -- valid
  Caenocara tenuipalpum Fall, 1905 -- valid
  Caenotoides californicus Hall, 1972 -- valid
  Caenotoides idahoensis Hall, 1972 -- valid
  Caenotoides mexicanus Hall, 1972 -- valid
  Caerostris vicina (Blackwall, 1866) -- valid
  Cairnsichthys Allen, 1980 -- valid
  Calamphora Allman, 1888 -- valid
  Calamus campechanus Randall and Caldwell, 1966 -- valid -- Campeche porgy, pluma campechana
  Calamus cervigoni Randall and Caldwell, 1966 -- valid
  Calamus mu Randall and Caldwell, 1966 -- valid
  Calamus nodosus Randall and Caldwell, 1966 -- valid -- knobbed porgy, mojarrón pecoso
  Calastacus hirsutimana (Boesch and Smalley, 1972) -- invalid
  Calathus (Neocalathus) Ball and Nčgre, 1972 -- valid
  Calathus (Tachalus) Ball and Nčgre, 1972 -- valid
  Calathus aztec Ball and Nčgre, 1972 -- valid
  Calathus aztex Ball and Nčgre, 1972 -- invalid
  Calathus calceus Ball and Nčgre, 1972 -- valid
  Calathus clauseni Ball and Nčgre, 1972 -- valid
  Calathus durango Ball and Nčgre, 1972 -- valid
  Calathus erwini Ball and Nčgre, 1972 -- valid
  Calathus leechi Ball and Nčgre, 1972 -- valid
  Calathus marmoreus Ball and Nčgre, 1972 -- valid
  Calathus potosi Ball and Nčgre, 1972 -- valid
  Calathus rotgeri Ball and Nčgre, 1972 -- valid
  Calathus whiteheadi Ball and Nčgre, 1972 -- valid
  Calcinus laevimanus (J. W. Randall, 1840) -- valid -- Hawaiian hermit
  Calcinus latens (J. W. Randall, 1840) -- valid -- hidden hermit
  Calidris alba (Pallas, 1764) -- valid -- Bécasseau sanderling, Playero blanco, Sanderling
  Calidris alba alba (Pallas, 1764) -- valid
  Calidris ruficollis (Pallas, 1776) -- valid -- Bécasseau ŕ col roux, Red-necked Stint
  Caligus rogercresseyi Boxshall and Bravo, 2000 -- valid
  Calinaticina oldroydii (Dall, 1897) -- valid
  Callaeatidae Sundevall, 1836 -- valid -- Wattled Crows
  Callicebus aureipalatii Wallace, Gómez, A. M. Felton and A. Felton, 2006 -- invalid -- Madidi Titi
  Callicebus lugenus duida Allen, 1914 -- invalid
  Calliobasis Marshall, 1983 -- valid
  Calliodentalium callipeplum (Dall, 1889) -- valid -- gorgeous tuskshell
  Callionymus comptus Randall, 1999 -- valid
  Callionymus sagitta Pallas, 1770 -- valid -- arrowheaded dragonet, arrowheaded dragonet
  Calliostoma arestum Dall, 1927 -- valid
  Calliostoma aurora Dall, 1888 -- valid
  Calliostoma bairdi subumbilicatum Dall -- valid
  Calliostoma bairdii hendersoni Dall, 1927 -- valid
  Calliostoma bairdii psyche Dall, 1927 -- valid
  Calliostoma benedicti Dall, 1889 -- valid
  Calliostoma brunneum (Dall, 1881) -- valid
  Calliostoma circumcinctum Dall, 1880 -- valid
  Calliostoma echinatum Dall, 1881 -- valid
  Calliostoma gloriosum Dall, 1871 -- valid -- glorious topsnail
  Calliostoma halibrectum Dall, 1927 -- valid
  Calliostoma hendersoni Dall, 1927 -- valid
  Calliostoma indiana Dall, 1889 -- valid
  Calliostoma kampsa Dall, 1927 -- valid
  Calliostoma marionae Dall, 1906 -- valid -- mahogany topsnail
  Calliostoma nepheloide Dall, 1913 -- valid
  Calliostoma orion Dall, 1889 -- valid
  Calliostoma palmeri Dall, 1871 -- valid
  Calliostoma platinum Dall, 1890 -- valid -- silvery topsnail
  Calliostoma psyche Dall, 1889 -- valid -- psyche topsnail
  Calliostoma rioensis Dall, 1890 -- valid
  Calliostoma roseolum Dall, 1881 -- valid -- rosy topsnail
  Calliostoma sapidum Dall, 1881 -- valid -- ratchet topsnail
  Calliostoma sarcodum Dall, 1927 -- valid
  Calliostoma sayanum Dall, 1889 -- valid
  Calliostoma tittarium Dall, 1927 -- valid
  Calliostoma trachystum Dall, 1927 -- valid
  Calliostoma turbinum Dall, 1896 -- valid -- spindle topsnail
  Calliostoma yucatecanum Dall, 1881 -- valid -- depressed topsnail
  Calliotropis calatha (Dall, 1890) -- invalid
  Calliotropis carlotta (Dall, 1889) -- valid -- charlotte island spiny margarite
  Callipallene californiensis (Hall, 1913) -- valid
  Calliphora livida Hall, 1948 -- valid
  Callisaurus draconoides ventralis (Hallowell, 1852) -- valid -- Arizona Gridiron-tailed Lizard, Arizona Zebra-tailed Lizard, Arizona Zebratail Lizard, Eastern Zebratail Lizard
  Callista eucymata (Dall, 1890) -- valid -- glory-of-the-seas venus
  Callistochiton Dall, 1879 -- valid
  Callistochiton palmulatus Dall, 1879 -- valid
  Callistoplax Dall, 1882 -- valid
  Callizzia certiorara Pearsall, 1906 -- valid
  Callobius bennetti (Blackwall, 1846) -- valid
  Callocardia texasiana (Dall, 1892) -- invalid
  Callogorgia verticillata (Pallas, 1766) -- valid
  Callosciurus erythraeus (Pallas, 1779) -- valid -- Pallas's Squirrel
  Callosciurus erythraeus erythraeus (Pallas, 1779) -- valid
  Callospermophilus lateralis wortmani (J. A. Allen, 1895) -- valid
  Callulops eremnosphax Kraus and Allison, 2009 -- valid
  Callulops marmoratus Kraus and Allison, 2003 -- valid
  Callulops omnistriatus Kraus and Allison, 2009 -- valid
  Calocaris hirsutimana (Boesch and Smalley, 1972) -- invalid
  Calommata sundaica (Doleschall, 1859) -- valid
  Calonyx constans Marshall, 1943 -- valid
  Calonyx ovata Marshall, 1931 -- valid
  Calosdisculus retifera Dall, 1892 -- invalid
  Calosoma eremicola Fall, 1910 -- valid
  Calosoma parvicolle Fall, 1910 -- valid
  Calotes nigriplicatus Hallermann, 2000 -- valid
  Calotes pethiyagodai A. A. Amarasinghe, Karunarathna and Hallermann, 2014 -- valid -- Pethiyagoda's Crestless Lizard
  Calotrophon philippiana (Dall, 1889) -- valid
  Calphurnioides connexus (McAtee and Malloch, 1926) -- valid
  Calphurnioides emmesius (McAtee and Malloch, 1926) -- valid
  Calphurnioides insolitus Tatarnic, Wall and Cassis, 2011 -- valid
  Calphurnioides moniliferus (McAtee and Malloch, 1926) -- valid
  Calphurnioides monoliferus (McAtee and Malloch, 1926) -- invalid
  Calphurnioides velutinervis (McAtee and Malloch, 1926) -- valid
  Caluromys J. A. Allen, 1900 -- valid -- woolly opossum
  Caluromys (Caluromys) J. A. Allen, 1900 -- valid
  Calviria Martens and Curini-Galletti, 1993 -- valid
  Calviria banyulensis Martens and Curini-Galletti, 1993 -- valid
  Calviria solaris Martens and Curini-Galletti, 1993 -- valid
  Calviria sublittoralis Martens and Curini-Galletti, 1993 -- valid
  Calviriidae Martens and Curini-Galletti, 1993 -- valid
  Calycella Allman, 1864 -- valid
  Calymmaderus advenus (Fall, 1905) -- valid
  Calymmaderus amoenus (Fall, 1905) -- valid
  Calymmaderus obsoletus (Fall, 1905) -- valid
  Calymmaderus similis (Fall, 1905) -- valid
  Calyptogena Dall, 1891 -- valid
  Calyptogena pacifica Dall, 1891 -- valid
  Calyptomma W. M. Tattersall, 1909 -- valid
  Calyptomma puritani W. M. Tattersall, 1909 -- valid
  Calythea bidentata (Malloch, 1913) -- valid
  Calythea separata Malloch, 1924 -- invalid
  Camacolaimus propinquus Allgen, 1929 -- invalid
  Camaroptera Sundevall, 1850 -- valid
  Cambaroides dauricus (Pallas, 1772) -- valid
  Cambarus englishi Hobbs and Hall, 1972 -- valid -- Tallapoosa Crayfish
  Cambarus howardi Hobbs and Hall, 1969 -- valid -- Chattahoochee crayfish
  Cambarus laconensis Buhay and Crandall, 2009 -- valid
  Cambarus obstipus Hall, 1959 -- valid -- Sloped Crayfish
  Cambarus speleocoopi Buhay and Crandall, 2009 -- valid
  Cambarus unestami Hobbs and Hall, 1969 -- valid -- Blackbarred Crayfish
  Camelobaetidius navis (Allen and Chao, 1978) -- invalid
  Camelobaetidius salinus (Allen and Chao, 1978) -- invalid
  Camelobaetidius sinaloa (Allen and Murvosh, 1987) -- invalid
  Camelobaetidius trivialis (Allen and Chao, 1978) -- invalid
  Cameronieta Machado-Allison, 1965 -- valid
  Cameronieta thomasi Machado-Allison, 1965 -- valid
  Camilla glabra (Fallen, 1823) -- valid
  Campanularia carduella Allman, 1885 -- valid
  Campanularia crenata Allman, 1876 -- invalid
  Campanularia gelatinosa (Pallas, 1766) -- valid
  Campanularia macroscypha Allman, 1877 -- valid
  Campbellobates Wallwork, 1964 -- valid
  Campbellobates acanthus Wallwork, 1964 -- valid
  Campbellobates acanthus acanthus Wallwork, 1964 -- valid
  Campeloma floridense Call, 1886 -- valid -- Purple-throat Campeloma, Purple-throated Campeloma
  Campiglossa angustipennis (Malloch, 1938) -- valid
  Campiglossa irrorata (Fallen, 1814) -- valid
  Campiglossa media (Malloch, 1938) -- valid
  Campiglossa punctella (Fallen, 1814) -- valid
  Campodea hannahae Allen, 1995 -- valid
  Campodea meinerti Bagnall, 1918 -- valid
  Campodea ottei Allen, 2002 -- valid
  Camponotus alii concolor Dalla Torre, 1893 -- valid
  Camponotus fasciatellus Dalla Torre, 1892 -- valid
  Camponotus fellah Dalla Torre, 1893 -- valid
  Camponotus hova hovoides Dalla Torre, 1893 -- valid
  Camponotus hova mixtellus Dalla Torre, 1893 -- valid
  Camponotus jaliensis Dalla Torre, 1893 -- valid
  Camponotus jaliensis jaliensis Dalla Torre, 1893 -- valid
  Camponotus maculatus sylvaticomaculatus Dalla Torre, 1893 -- valid
  Camponotus oertzeni andrius Dalla Torre, 1893 -- valid
  Camponotus oertzeni kappariensis Dalla Torre, 1893 -- valid
  Camponotus sanctaefidei Dalla Torre, 1892 -- valid
  Camponotus sanctaefidei sanctaefidei Dalla Torre, 1892 -- valid
  Camponotus variegatus dulcis Dalla Torre, 1893 -- valid
  Camponotus variegatus fuscithorax Dalla Torre, 1893 -- valid
  Campsicnemus bryanti Malloch, 1932 -- valid
  Campsicnemus congregatus Malloch -- valid
  Campsicnemus inermipes Malloch -- valid
  Campsicnemus rectus Malloch -- valid
  Camptocladius flavens Malloch, 1915 -- invalid
  Camptocladius lasiophthalma Malloch, 1915 -- invalid
  Camptocladius lasiops Malloch, 1915 -- invalid
  Camptocladius subaterrimus Malloch, 1915 -- invalid
  Camptoprosopella maculipennis Malloch, 1923 -- valid
  Camptozygum pinastri (Fallén, 1807) -- invalid
  Campylosteira parvula (Fallén, 1807) -- invalid
  Campylosteira verna (Fallén, 1826) -- valid
  Campylosteira verna verna (Fallén, 1826) -- valid
  Canacea macateei Malloch, 1924 -- valid
  Canama forceps (Doleschall, 1859) -- valid
  Cancellaria circumcincta Dall, 1873 -- invalid
  Cancellaria circumcinta Dall, 1873 -- invalid
  Cancellaria corbicula Dall, 1908 -- invalid -- basket nutmeg
  Cancellaria crawfordiana Dall, 1891 -- valid
  Cancellaria middendorffiana (Dall, 1884) -- invalid
  Cancellaria rhyssa (Dall, 1919) -- invalid
  Cancellaria unalashkensis Dall, 1873 -- invalid
  Cancellaria unalaskensis Dall, 1873 -- invalid
  Cancer productus J. W. Randall, 1840 -- valid -- red rock crab
  Canis adustus Sundevall, 1847 -- valid -- Side-striped Jackal
  Canis adustus adustus Sundevall, 1847 -- valid
  Canis alpinus Pallas, 1811 -- invalid
  Canis latrans impavidus J. A. Allen, 1903 -- valid
  Canis latrans incolatus Hall, 1934 -- valid
  Canis lupus beothucus G. M. Allen and Barbour, 1937 -- valid
  Canis lupus crassodon Hall, 1932 -- valid
  Cansumys G. M. Allen, 1928 -- valid
  Cansumys canus G. M. Allen, 1928 -- valid -- Gansu Hamster
  Cantharis lecontei Fall, 1936 -- valid
  Canthecona grandis Dallas, 1851 -- invalid
  Cantherhines cerinus Randall, 2011 -- valid
  Cantherhines longicaudus Hutchins & Randall, 1982 -- valid
  Cantherhines nukuhiva Randall, 2011 -- valid
  Cantherhines tiki Randall, 1964 -- invalid
  Canthigaster constellatus Kendall & Goldsborough, 1911 -- invalid
  Canthigaster cyanetron Randall & Cea-Egańa, 1989 -- valid
  Canthigaster cyanospilota Randall, Williams & Rocha, 2008 -- valid
  Canthigaster inframacula Allen & Randall, 1977 -- valid
  Canthigaster leoparda Lubbock & Allen, 1979 -- valid
  Canthigaster marquesensis Allen & Randall, 1977 -- valid
  Canthigaster ocellicincta Allen & Randall, 1977 -- valid
  Canthigaster pygmaea Allen & Randall, 1977 -- valid
  Canthigaster rapaensis Allen & Randall, 1977 -- valid
  Canthigaster smithae Allen & Randall, 1977 -- valid
  Canthigaster tyleri Allen & Randall, 1977 -- valid
  Canthydrus binotatus Fleutiaux and Sallé, 1889 -- invalid
  Capra caucasica Güldenstaedt and Pallas, 1783 -- valid -- Tur, West Caucasian tur
  Capra caucasica caucasica Güldenstaedt and Pallas, 1783 -- valid
  Capra sibirica (Pallas, 1776) -- valid -- Siberian ibex, Siberian Ibex
  Capraita circumdata (Randall, 1838) -- valid
  Capreolus pygargus (Pallas, 1771) -- valid -- eastern roe deer, Siberian Roe
  Capreolus pygargus pygargus (Pallas, 1771) -- valid
  Capromys pilorides relictus (Allen, 1911) -- valid
  Capsus ambulans Fallén, 1807 -- invalid
  Capsus caricis Fallén, 1807 -- invalid
  Capsus magnicornis Fallén, 1807 -- invalid
  Capsus roseus Fallén, 1829 -- invalid
  Capulus californicus Dall, 1900 -- valid -- California capsnail
  Carabocepheus carinatus (Wallwork, 1977) -- invalid
  Carabocepheus hyalinus (Wallwork, 1977) -- invalid
  Carabodes arduinii Valle, 1955 -- valid
  Carabodes clavatus Wallwork, 1977 -- invalid
  Caranx bucculentus Alleyne and Macleay, 1877 -- valid -- bluespotted trevally, bluespotted trevally
  Caranx papuensis Alleyne and Macleay, 1877 -- valid -- Papuan trevally
  Carapus fasciatus (Pallas, 1769) -- invalid
  Cardellina pusilla pileolata (Pallas, 1811) -- valid
  Cardiomya balboae (Dall, 1916) -- valid -- Balboa cardiomya
  Cardiomya californica (Dall, 1886) -- valid -- california cardiomya
  Cardiomya oldroydi (Dall, 1924) -- valid -- oldroyd cardiomya
  Cardiomya perrostrata (Dall, 1881) -- valid -- rostrate cardiomya
  Cardiomya planetica (Dall, 1908) -- valid -- fine-rib cardiomya, planet cardiomya
  Carditopsis bernardi (Dall, 1903) -- valid -- bernard condylclam
  Carditopsis smithii (Dall, 1896) -- valid -- tiny condylclam
  Carduelis citrinella (Pallas, 1764) -- valid -- Citril Finch
  Careproctus guillemi Matallanas, 1998 -- valid
  Careproctus magellanicus Matallanas and Pequeńo, 2000 -- valid
  Careproctus patagonicus Matallanas and Pequeńo, 2000 -- valid
  Caribachlamys Waller, 1993 -- valid
  Caricea brevitarsis (Malloch, 1935) -- valid
  Caricea setipes (Malloch, 1935) -- valid
  Caricea tinctinervis (Malloch, 1935) -- valid
  Caricea varians (Malloch, 1935) -- valid
  Caridina confusa Choy & Marshall, 1997 -- valid
  Caridina richtersi Thallwitz, 1892 -- valid
  Caridina spinula Choy & Marshall, 1997 -- valid
  Carinoturris adrastia (Dall, 1919) -- valid
  Carinoturris polycaste (Dall, 1919) -- valid
  Carlia bomberai Zug and Allison, 2006 -- valid
  Carlia caesius Zug and Allison, 2006 -- valid
  Carnegieomysis W. M. Tattersall, 1943 -- invalid
  Carnegieomysis xenops W. M. Tattersall, 1943 -- invalid
  Carollia castanea H. Allen, 1890 -- valid -- Chestnut Short-tailed Bat
  Carpelimus alaskanus (Fall, 1926) -- invalid
  Carpelimus teres (Fall, 1926) -- invalid
  Carpodacus erythrinus (Pallas, 1770) -- valid -- Common Rosefinch
  Carpodacus erythrinus erythrinus (Pallas, 1770) -- valid
  Carpodacus roseus (Pallas, 1776) -- valid -- Pallas's Rosefinch
  Carpodacus roseus roseus (Pallas, 1776) -- valid
  Carpodacus sibiricus (Pallas, 1773) -- valid -- Long-tailed Rosefinch
  Carpodacus sibiricus sibiricus (Pallas, 1773) -- valid
  Carpophilus floridanus Fall, 1910 -- invalid
  Carpophilus ignobilis Fall, 1910 -- invalid
  Carpophilus longus Fall, 1910 -- valid
  Carpophilus nitens Fall, 1910 -- invalid
  Carpophilus rickseckeri Fall, 1910 -- invalid
  Carpophthorella setifrons Malloch, 1939 -- invalid
  Carptima Pearsall, 1906 -- valid
  Carptima hydriomenata Pearsall, 1906 -- valid
  Carrhydrus Fall, 1922 -- invalid
  Carrhydrus crassipes Fall, 1922 -- invalid
  Carterocephalus palaemon (Pallas, 1771) -- valid -- Arctic Skipper, Arctic skipper, echiquier
  Carychium stygium Call, 1897 -- valid -- cave thorn
  Caryocorbula porcella (Dall, 1916) -- valid -- ribbed corbula
  Caryophyllaeus laticeps (Pallas, 1781) -- valid
  Cassida margaritacea Schaller, 1783 -- valid
  Cassiopea frondosa (Pallas, 1774) -- valid
  Castor canadensis concisor Warren and Hall, 1939 -- invalid
  Castor canadensis idoneus Jewett and Hall, 1940 -- invalid
  Catharus fuscescens subpallidus (Burleigh & Duvall, 1959) -- valid
  Catharus guttatus (Pallas, 1811) -- valid -- grive solitaire, Hermit Thrush, Zorzal cola rufa
  Catharus guttatus guttatus (Pallas, 1811) -- valid
  Catharus ustulatus (Nuttall, 1840) -- valid -- grive ŕ dos olive, Swainson's Thrush, Zorzal de Swainson
  Catharus ustulatus ustulatus (Nuttall, 1840) -- valid
  Catorhintha apicalis (Dallas, 1852) -- valid
  Catullia viridis Lallemand and Synave, 1953 -- valid
  Caudatella cascadia (Allen and Edmunds, 1961) -- invalid
  Caudatella edmundsi (Allen, 1959) -- valid
  Caudatella heterocaudata californica (Allen and Edmunds, 1961) -- valid
  Caudatella heterocaudata circia (Allen and Edmunds, 1961) -- valid
  Caurinella Allen, 1984 -- valid
  Caurinella idahoensis Allen, 1984 -- valid
  Causus maculatus (Hallowell, 1842) -- valid -- Spotted Night Adder, West-African Night Adder
  Cavia Pallas, 1766 -- valid
  Cebus aequatorialis J. A. Allen, 1914 -- valid -- Ecuadorian White-fronted Capuchin
  Cebus albifrons aequatorialis J. A. Allen, 1914 -- invalid
  Cebus brunneus Allen, 1914 -- valid -- Brown Capuchin, Venezuelan Brown Capuchin
  Cecropis semirufa (Sundevall, 1850) -- valid -- Rufous-chested Swallow
  Cecropis semirufa semirufa (Sundevall, 1850) -- valid
  Cecropis striolata mayri (B. P. Hall, 1953) -- valid
  Celeus brachyurus squamigularis (Sundevall, 1866) -- invalid
  Celidosphenella simulata (Malloch, 1933) -- valid
  Celithemis leonora Westfall, 1952 -- invalid
  Cellaria sinuosa (Hassall, 1840) -- valid
  Centris ancashsumaq Zanella and Vivallo, 2009 -- valid
  Centris apache Vivallo, 2020 -- valid
  Centris aureiventris Vivallo, Vélez and Fernandez, 2013 -- valid
  Centris caymanensis Vivallo, 2014 -- valid
  Centris celadonia Vivallo, Vélez and Fernández, 2016 -- valid
  Centris ceratops Vélez and Vivallo, 2012 -- valid
  Centris domingensis Dalla Torre, 1896 -- valid
  Centris nebulosa Vivallo and Vélez, 2016 -- valid
  Centris nordestina Vivallo and Zanella, 2012 -- valid
  Centris thelyopsis Vivallo and Melo, 2009 -- valid
  Centris vallecaucensis Vivallo, Vélez and Fernández, 2016 -- valid
  Centrochthonius sichuanensis Schawaller, 1995 -- invalid
  Centrodera nevadica Fall, 1901 -- invalid
  Centromerita bicolor (Blackwall, 1833) -- valid
  Centromerus sylvaticus (Blackwall, 1841) -- valid
  Centromerus sylvaticus sylvaticus (Blackwall, 1841) -- valid
  Centropyge aurantia Randall and Wass, 1974 -- valid
  Centropyge boylei Pyle and Randall in Pyle, 1992 -- valid
  Centropyge colini Smith-Vaniz and Randall, 1974 -- valid
  Centropyge ferrugata Randall and Burgess in Burgess and Axelrod, 1972 -- valid
  Centropyge ferrugatus Randall and Burgess in Burgess and Axelrod, 1972 -- invalid
  Centropyge flavipectoralis Randall and Klausewitz, 1977 -- valid
  Centropyge hotumatua Randall and Caldwell, 1973 -- valid
  Centropyge joculator Smith-Vaniz and Randall, 1974 -- valid
  Centropyge multicolor Randall and Wass, 1974 -- valid
  Centropyge narcosis Pyle and Randall, 1993 -- valid
  Centropyge shepardi Randall and Yasuda, 1979 -- valid
  Centuriatus compactus (Fall, 1937) -- valid
  Cephalopholis aitha Randall and Heemstra, 1991 -- valid -- rusty hind
  Cephalopholis oligosticta Randall and Ben-Tuvia, 1983 -- valid -- roughcheek hind, vermilion hind
  Cephalopholis polyspila Randall and Satapoomin, 2000 -- valid
  Cephalops aucta Fallen, 1817 -- invalid
  Cephalops spurius Fallen, 1816 -- invalid
  Cephalorhynchus commersonii kerguelenensis Robineau, Goodall, Pichler and C. S. Baker, 2007 -- valid -- Kerguelen Islands Commerson's dolphin
  Cephalotoma Bagnall, 1949 -- invalid
  Cepphus Pallas, 1769 -- valid -- Guillemots
  Cepphus carbo Pallas, 1811 -- valid -- Spectacled Guillemot
  Cepphus columba Pallas, 1811 -- valid -- Arao pichón, Guillemot colombin, Pigeon Guillemot
  Cepphus columba columba Pallas, 1811 -- valid
  Ceracis thoracicus Dalla Torre, 1911 -- invalid
  Ceraphron tertius Dalla Torre, 1898 -- valid
  Ceraphron thomsoni Dalla Torre, 1890 -- valid
  Ceratitella Malloch, 1939 -- valid
  Ceratobranchia delotaenia Chernoff and Machado-Allison, 1990 -- valid
  Ceratobranchia joanae Chernoff and Machado-Allison, 1990 -- valid
  Ceratocombus (Ceratocombus) hesperus McAtee and Malloch, 1925 -- invalid
  Ceratocombus (Ceratocombus) vagans McAtee and Malloch, 1925 -- invalid
  Ceratocombus hesperus McAtee and Malloch, 1925 -- valid
  Ceratocombus vagans McAtee and Malloch, 1925 -- valid
  Ceratodon monodon Pallas, 1811 -- invalid
  Ceratodrilus Hall, 1914 -- valid
  Ceratodrilus thysanosomus Hall, 1914 -- valid
  Ceratogyrus ezendami Gallon, 2001 -- invalid
  Ceratogyrus paulseni Gallon, 2005 -- valid
  Ceratohister ankylonotum Dégallier and Caterino, 2005 -- valid
  Ceratohister cornutus Dégallier and Caterino, 2005 -- valid
  Ceratohister leai Dégallier and Caterino, 2005 -- valid
  Ceratopachys virescens Dallas, 1852 -- valid
  Ceratophysella denticulata (Bagnall, 1941) -- valid
  Ceratophysella gibbosa (Bagnall, 1940) -- valid
  Ceratopogon fusinervis Malloch, 1915 -- invalid
  Ceratoppia quadridentata (Haller, 1882) -- valid
  Ceratothoa deplanata Bovallius, 1885A -- valid
  Ceratothripoides Bagnall, 1918 -- valid
  Ceratothripoides brunneus Bagnall, 1918 -- valid
  Ceratozetes rostroserratus Wallwork, 1965 -- invalid
  Ceratozona Dall, 1882 -- valid
  Cercamia Randall and Smith, 1988 -- valid
  Cercamia cladara Randall and Smith, 1988 -- valid
  Cercamia eremia (Allen, 1987) -- valid
  Cerceris dichroa Dalla Torre, 1890 -- invalid
  Cerceris marginula Dalla Torre, 1897 -- valid
  Cerceris nevadensis Dalla Torre, 1890 -- invalid
  Cerceris provancheri Dalla Torre, 1890 -- invalid
  Cerceris rufinodula Dalla Torre, 1897 -- invalid
  Cerceris smithii Dalla Torre, 1897 -- invalid
  Cercomela sinuata (Sundevall, 1858) -- invalid -- Sickle-winged Chat
  Cercopithecus erxlebeni Dallbet and Pucheran, 1856 -- invalid
  Cercotmetus pilipes (Dallas, 1850) -- valid
  Cercotrichas signata (Sundevall, 1850) -- invalid -- Brown Scrub Robin
  Cercyon connivens Fall, 1924 -- valid
  Cercyon opacellus Fall, 1924 -- invalid
  Cercyonis pegala ino G. Hall, 1924 -- valid
  Cerdocyon thous germanus G. M. Allen, 1923 -- valid
  Cerithiella producta Dall, 1927 -- valid
  Cerithiopsis althea (Dall, 1927) -- valid
  Cerithiopsis apicinum (Dall, 1927) -- valid
  Cerithiopsis ara Dall and Bartsch, 1911 -- valid
  Cerithiopsis argenteum (Dall, 1927) -- valid
  Cerithiopsis benthicum (Dall, 1927) -- valid
  Cerithiopsis crystallinum Dall, 1881 -- valid
  Cerithiopsis decorum (Dall, 1927) -- valid
  Cerithiopsis docata (Dall, 1927) -- valid
  Cerithiopsis elima (Dall, 1927) -- valid
  Cerithiopsis eliza (Dall, 1927) -- valid
  Cerithiopsis elsa (Dall, 1927) -- valid
  Cerithiopsis georgianum (Dall, 1927) -- valid
  Cerithiopsis honora (Dall, 1927) -- valid
  Cerithiopsis io Dall and Bartsch, 1911 -- valid
  Cerithiopsis leipha (Dall, 1927) -- valid
  Cerithiopsis martensii Dall, 1881 -- valid
  Cerithiopsis merida (Dall, 1927) -- valid
  Cerithiopsis metaxae taeniolata Dall, 1889 -- valid
  Cerithiopsis movilla Dall and Bartsch, 1911 -- valid
  Cerithiopsis pesa Dall and Bartsch, 1911 -- valid
  Cerithiopsis petala (Dall, 1927) -- valid
  Cerithiopsis pupa Dall and Stimpson, 1901 -- valid
  Cerithiopsis serina (Dall, 1927) -- valid
  Cerithiopsis sigsbeanum Dall, 1881 -- valid
  Cerithiopsis stejnegeri Dall, 1884 -- valid
  Cerithiopsis stejnegeri stejnegeri Dall, 1884 -- valid
  Cerithiopsis taeniolata Dall, 1889 -- invalid
  Cerithiopsis truncatum Dall, 1886 -- valid
  Cerithiopsis tubercularis floridana Dall, 1892 -- valid
  Cerithiopsis tuberculatus floridana Dall, 1892 -- valid
  Cerithiopsis vicola Dall and Bartsch, 1911 -- valid
  Cerithiopsis vitreum (Dall, 1927) -- valid
  Cerodontha illinoensis (Malloch, 1934) -- valid
  Cerodontha inconspicua (Malloch, 1913) -- valid
  Cerodontha subangulata (Malloch, 1916) -- valid
  Cerodrillia abdera (Dall, 1919) -- valid
  Cerodrillia carminura Dall, 1889 -- invalid
  Cerodrillia simpsoni Dall, 1887 -- invalid
  Cerodrillia thea (Dall, 1884) -- valid -- tea drillia
  Cerodrillia verrillii (Dall, 1881) -- valid
  Ceroptera sivinskii Marshall, 1983 -- valid
  Cerorhinca monocerata (Pallas, 1811) -- valid -- Alca rinoceronte, Macareux rhinocéros, Rhinoceros Auklet
  Cetoconcha Dall, 1889 -- valid
  Cetoconcha bulla (Dall, 1881) -- valid
  Cetoconcha margarita (Dall, 1886) -- valid
  Cetoconcha smithii Dall, 1908 -- valid
  Cetomya Dall, 1889 -- invalid
  Ceutorhynchus albopilosus Fall, 1901 -- invalid
  Ceutorhynchus convexipennis Fall, 1917 -- valid
  Ceutorhynchus echinatus Fall, 1917 -- valid
  Ceutorhynchus fulvotertius Fall, 1926 -- valid
  Ceutorhynchus invisus Fall, 1917 -- valid
  Ceutorhynchus moznettei Fall, 1917 -- valid
  Ceutorhynchus notatulus Fall, 1907 -- valid
  Ceutorhynchus omissus Fall, 1917 -- valid
  Ceutorhynchus pervestitus Fall, 1901 -- valid
  Ceutorhynchus solitarius Fall, 1907 -- valid
  Ceyx cajeli Wallace, 1863 -- valid -- Buru Dwarf Kingfisher, Buru Dwarf-kingfisher, Martín pigmeo de Buru, Martin-pęcheur de Buru
  Ceyx lepidus cajeli Wallace, 1863 -- invalid
  Chaenopsis limbaughi Robins and Randall, 1965 -- valid -- yellowface pikeblenny
  Chaenopsis resh Robins and Randall, 1965 -- valid
  Chaenopsis stephensi Robins and Randall, 1965 -- valid
  Chaerephon chapini J. A. Allen, 1917 -- valid -- Chapin's Free-tailed Bat, Long-crested Free-tailed Bat, Pale Free-tailed Bat
  Chaerephon chapini chapini J. A. Allen, 1917 -- invalid
  Chaerephon leucostigma G. M. Allen, 1918 -- invalid
  Chaerephon osborni J. A. Allen, 1917 -- invalid
  Chaerephon russata J. A. Allen, 1917 -- invalid -- Russet Free-tailed Bat
  Chaerephon russatus J. A. Allen, 1917 -- valid -- Russet Free-tailed Bat
  Chaetanaphothrips signipennis (Bagnall, 1914) -- valid
  Chaetarthria minor Fall, 1901 -- invalid
  Chaetocnema costata Fall in Fall and Cockerell, 1907 -- valid
  Chaetodellus Masán and Halliday, 2013 -- valid
  Chaetodellus comatus Masán and Halliday, 2013 -- valid
  Chaetodellus meganalis (Halliday, 2005) -- valid
  Chaetodipus californicus femoralis (J. A. Allen, 1891) -- valid -- Dulzura Pocket Mouse
  Chaetodipus formosus incolatus (Hall, 1941) -- valid
  Chaetodipus formosus melanurus (Hall, 1941) -- valid
  Chaetodipus hispidus conditi (Allen, 1894) -- valid
  Chaetodipus penicillatus pricei (J. A. Allen, 1894) -- valid
  Chaetodipus pernix (J. A. Allen, 1898) -- valid -- Sinaloan Pocket Mouse
  Chaetodipus pernix pernix (J. A. Allen, 1898) -- valid
  Chaetodon burgessi Allen and Starck, 1973 -- valid
  Chaetodon declevis Burgess and Randall in Burgess, 1978 -- invalid
  Chaetodon declivis Randall, 1975 -- valid
  Chaetodon hemichrysus Burgess and Randall in Burgess, 1978 -- invalid
  Chaetodon litus Randall and Caldwell, 1973 -- valid
  Chaetodon smithi Randall, 1975 -- valid
  Chaetodontoplus vanderloosi Allen and Steene, 2004 -- valid
  Chaetoneurophora macateei Malloch, 1913 -- invalid
  Chaetopelma altugkadirorum Gallon, Gabriel & Tansley, 2012 -- valid
  Chaetopleura gemma Dall, 1879 -- valid
  Chaetopleura lanuginosa (Dall, 1879) -- valid
  Chaetopleurophora pennsylvanica (Malloch, 1914) -- valid
  Chaetosa churchilli Malloch, 1931 -- valid
  Chaetosoma campbelli Allgen, 1932 -- invalid
  Chaetosoma suillum Allgen, 1932 -- invalid
  Chaetostoma lineopunctatum Eigenmann and Allen, 1942 -- valid
  Chaetostoma marmorescens Eigenmann and Allen, 1942 -- valid
  Chaetostomella completa (Kapoor, Malla & Ghosh, 1979) -- valid
  Chalarodon steinkampi Miralles, Glaw, Ratsoavina and Vences, 2015 -- valid -- Steinkamp's Madagascar Iguana
  Chalarus spurius (Fallen, 1816) -- valid
  Chalcoscirtus sublestus (Blackwall, 1867) -- valid
  Chalicodoma mortyanum (Dalla Torre, 1896) -- invalid
  Chalicodoma tertium (Dalla Torre, 1896) -- invalid
  Chalinolobus alboguttatus (J. A. Allen, 1917) -- invalid -- Allen's striped bat
  Chama lactuca Dall, 1886 -- valid -- milky jewelbox
  Chamaeleo gracilis Hallowell, 1842 -- valid -- Graceful Chameleon
  Chamaeleo gracilis gracilis Hallowell, 1842 -- valid
  Chamaemyia aridella (Fallen, 1823) -- valid
  Chamaemyia fumicosta Malloch, 1940 -- valid
  Chamaemyia juncorum (Fallen, 1823) -- valid
  Charadrius asiaticus Pallas, 1773 -- valid -- Caspian Plover
  Charadrius bicinctus exilis Falla, 1978 -- valid
  Charadrius mongolus Pallas, 1776 -- valid -- Lesser Sand Plover, Lesser Sand-Plover, Mongolian Plover, Pluvier de Mongolie
  Charadrius mongolus mongolus Pallas, 1776 -- valid
  Charinus tingomaria Ballón-Estacio and Armas, 2019 -- valid
  Charmosyna rubronotata (Wallace, 1862) -- valid -- Red-fronted Lorikeet
  Charmosyna rubronotata rubronotata (Wallace, 1862) -- valid
  Chartoscirta elegantula (Fallén, 1807) -- valid
  Chartoscirta elegantula elegantula (Fallén, 1807) -- valid
  Chasmocranus peruanus Eigenmann and Pearson in Eigenmann and Allen, 1942 -- valid
  Chauliognathus omissus Fall, 1930 -- valid
  Chaunus beebei (Gallardo, 1965) -- invalid
  Chaunus fernandezae (Gallardo, 1957) -- invalid
  Chaunus gnustae (Gallardo, 1967) -- invalid
  Chaunus quechua (Gallardo, 1961) -- invalid
  Cheesmanomyia Malloch, 1939 -- valid
  Cheesmanomyia unica Malloch, 1939 -- invalid
  Cheilodactylus rubrolabiatus Allen and Heemstra, 1976 -- valid
  Cheilolabrus Alleyne and Macleay, 1877 -- invalid
  Cheilolabrus magnilabris Alleyne and Macleay, 1877 -- invalid
  Cheiracanthium albidulum (Blackwall, 1859) -- valid
  Cheiracanthium virescens (Sundevall, 1833) -- valid
  Cheironchus brachyurus (Allgen, 1959) -- valid
  Cheironchus papillosus (Allgen, 1959) -- valid
  Cheiroseius sectatus Moraes, Britto, Mineiro and Halliday, 2016 -- valid
  Chelidoptera tenebrosa (Pallas, 1782) -- valid -- Swallow-wing Puffbird, Swallow-winged Puffbird
  Chelidoptera tenebrosa tenebrosa (Pallas, 1782) -- valid
  Chelifera caliga Lavallee, 1975 -- valid
  Chelifera knutsoni Lavallee, 1975 -- invalid
  Chelifera mana Lavallee, 1975 -- valid
  Chelifera precatoria (Fallen, 1915) -- valid
  Chelipoda vocatoria (Fallen, 1815) -- valid
  Chelonarhister Dégallier, 2004 -- valid
  Chelonarhister ashei Dégallier, 2004 -- valid
  Chelonarhister castroi Dégallier, 2004 -- valid
  Cheluridae Allman, 1847 -- valid
  Chetogena sellersi (Hall, 1939) -- valid
  Chetostoma completum Kapoor, Malla & Ghosh, 1979 -- invalid
  Cheumatopsyche Wallengren, 1891 -- valid
  Cheumatopsyche (Cheumatopsyche) Wallengren, 1891 -- valid
  Cheyletia Haller, 1884 -- valid
  Cheyletia laureata Haller, 1884 -- valid
  Chiasmocleis parkeri Almendáriz C., Brito-M., Batallas-R., Vaca-Guerrero and Ron, 2017 -- valid
  Chilatherina axelrodi Allen, 1979 -- valid
  Chilatherina bleheri Allen, 1985 -- valid
  Chilatherina pricei Allen and Renyaan, 1996 -- valid
  Childia aculifera Nilsson, Wallberg and Jondelius, 2011 -- valid
  Childia curinii Nilsson, Wallberg and Jondelius, 2011 -- valid
  Chilinidae Dall, 1870 -- valid
  Chilocorus circumdatus (Gyllenhall in Schönherr, 1808) -- valid
  Chilomycterus spilostylus Leis & Randall, 1982 -- invalid
  Chilonycteris parnellii pusilius G. M. Allen, 1917 -- invalid
  Chilonycteris rubiginosa fuscus J. A. Allen, 1911 -- invalid
  Chiloxanthus pilosa (Fallén, 1807) -- invalid
  Chiloxanthus pilosus (Fallén, 1807) -- valid
  Chionactis occipitalis (Hallowell, 1854) -- valid -- Culebra-nariz de pala del oeste, Mohave Shovel-nosed Snake, Mojave Shovelnose Snake, Western Shovel-nosed Snake, Western Shovelnose Snake
  Chionactis occipitalis occipitalis (Hallowell, 1854) -- invalid -- Mojave Shovelnose Snake
  Chione cancellata mazycki Dall, 1902 -- valid
  Chione purpurissata Dall, 1902 -- valid
  Chioninia spinalis boavistensis Miralles, Vasconcelos, Perera, Harris and Carranza, 2010 -- valid
  Chioninia spinalis santiagoensis Miralles, Vasconcelos, Perera, Harris and Carranza, 2010 -- valid
  Chioninia vaillantii xanthotis Miralles, Vasconcelos, Perera, Harris and Carranza, 2010 -- valid
  Chiroderma jesupi J. A. Allen, 1900 -- invalid
  Chiroderma villosum jesupi J. A. Allen, 1900 -- valid
  Chirolophis polyactocephalus (Pallas, 1814) -- invalid -- decorated warbonnet, decorated warbonnet
  Chironius carinatus spixii (Hallowell, 1845) -- invalid
  Chironius spixii (Hallowell, 1845) -- valid -- Sipo
  Chironomus abortivus Malloch, 1915 -- invalid
  Chironomus alboviridis Malloch, 1915 -- invalid
  Chironomus atritibia Malloch, 1934 -- valid
  Chironomus claripennis Malloch, 1915 -- invalid
  Chironomus colei Malloch, 1919 -- invalid
  Chironomus conformis Malloch, 1923 -- invalid
  Chironomus crassicaudatus Malloch, 1915 -- valid
  Chironomus curtilamellata Malloch, 1915 -- invalid
  Chironomus decumbens Malloch, 1934 -- valid
  Chironomus deflexa Walley, 1926 -- invalid
  Chironomus deviatus Malloch, 1923 -- invalid
  Chironomus fasciventris Malloch, 1915 -- invalid
  Chironomus fuscicornis Malloch, 1915 -- invalid
  Chironomus griseopunctatum Malloch, 1915 -- invalid
  Chironomus harti Malloch, 1915 -- valid
  Chironomus illinoense Malloch, 1915 -- invalid
  Chironomus imperator Walley, 1926 -- invalid
  Chironomus incognitus Malloch, 1915 -- invalid
  Chironomus indistinctus Malloch, 1915 -- invalid
  Chironomus macateei Malloch, 1915 -- invalid
  Chironomus neomodestus Malloch, 1915 -- invalid
  Chironomus nigrohalterale Malloch, 1915 -- invalid
  Chironomus nigrovittatus Malloch, 1915 -- invalid
  Chironomus ontario Walley, 1926 -- invalid
  Chironomus pallidivittatus Malloch, 1915 -- valid
  Chironomus pseudoviridis Malloch, 1915 -- invalid
  Chironomus quadripunctatus Malloch, 1915 -- invalid
  Chironomus serus Malloch, 1915 -- invalid
  Chironomus subaequalis Malloch, 1915 -- invalid
  Chironomus tenuicaudatus Malloch, 1915 -- invalid
  Chironomus unguiculatus Malloch, 1934 -- invalid
  Chironomus utahensis Malloch, 1915 -- valid
  Chiropterotriton mosaueri (Woodall, 1941) -- valid -- Salamandra-pie plano de caverna
  Chiropterotriton mosauri (Woodall, 1941) -- invalid
  Chirosia flavipennis (Fallen, 1823) -- valid
  Chirosia megacephala (Malloch, 1920) -- valid
  Chirosia proboscidalis (Malloch, 1920) -- valid
  Chirosia spinosissima (Malloch, 1919) -- valid
  Chirothripoides Bagnall, 1915 -- valid
  Chirothrips aculeatus Bagnall, 1927 -- valid
  Chirothrips meridionalis Bagnall, 1927 -- valid
  Chiroxiphia boliviana Allen, 1889 -- valid -- Yungas Manakin
  Chlaenius niger Randall, 1838 -- valid
  Chlaenius purpuricollis Randall, 1838 -- valid
  Chlamydatus pulicarius (Fallén, 1807) -- valid
  Chlamydoconcha Dall, 1884 -- valid
  Chlamydoconcha orcutti Dall, 1884 -- valid -- Orcutt nakedclam
  Chlamydoconchidae Dall, 1889 -- invalid
  Chlamys islandica erythrocomata (Dall, 1907) -- invalid
  Chlamys liocymatus (Dall, 1925) -- valid
  Chlamys lioicus (Dall, 1907) -- valid
  Chlamys navarcha Dall, 1898 -- valid
  Chlidichthys cacatuoides Gill and Randall, 1994 -- valid
  Chlidonias hybrida (Pallas, 1811) -- valid -- Guifette moustac, Whiskered Tern
  Chlidonias hybrida hybrida (Pallas, 1811) -- valid
  Chlidonias hybridus (Pallas, 1811) -- invalid
  Chlidonophora Dall, 1903 -- valid
  Chloeia flava (Pallas, 1766) -- valid
  Chloroceryle aenea (Pallas, 1764) -- valid -- American Pygmy Kingfisher, American Pygmy-kingfisher, martim-pescador-miúdo, Martín pescador enano, Martin-pęcheur nain, Martín-pescador enano
  Chloroceryle aenea aenea (Pallas, 1764) -- valid
  Chlorochlamys appellaria Pearsall, 1911 -- valid
  Chlorohydra viridissima (Pallas, 1766) -- valid -- green hydra
  Chloronemella Allgen, 1929 -- valid
  Chloronemella fusiformis Allgen, 1929 -- valid
  Chlorophis heterodermus Hallowell, 1857 -- invalid
  Chloropisca clypeata Malloch, 1914 -- invalid
  Chloropisca obtusa Malloch, 1914 -- invalid
  Chloropisca parviceps Malloch, 1915 -- invalid
  Chloropsis cochinchinensis kinneari B. P. Hall & Deignan, 1956 -- valid
  Chlorosea proutaria Pearsall, 1911 -- invalid
  Chlorurus atrilunula (Randall and Bruce, 1983) -- valid
  Chlorurus genazonatus (Randall and Bruce, 1983) -- valid
  Chlorurus rhakoura Randall and Anderson, 1997 -- valid
  Chlosyne rosita A. Hall, 1924 -- valid -- Rosita Patch
  Chlosyne rosita montana A. Hall, 1924 -- valid
  Chodsigoa parca G. M. Allen, 1923 -- valid -- Lowe's Shrew
  Chodsigoa parca parca G. M. Allen, 1923 -- valid
  Chodsigoa parva G. M. Allen, 1923 -- valid -- Pygmy Brown-toothed Shrew
  Choerodon cauteroma Gomon and Allen, 1987 -- valid
  Choerodon gomoni Allen and Randall, 2002 -- valid
  Choeroniscus intermedius (J. A. Allen and Chapman, 1893) -- invalid -- Intermediate Long-tailed Bat
  Choerophryne exclamitans (Kraus and Allison, 2005) -- valid
  Choerophryne longirostris Kraus and Allison, 2001 -- valid
  Choerophryne murrita (Kraus and Allison, 2009) -- valid
  Choerophryne sanguinopicta (Kraus and Allison, 2005) -- valid
  Choerops notatus Alleyne and Macleay, 1877 -- invalid
  Choloepus andinus J. A. Allen, 1913 -- invalid
  Choloepus augustinus J. A. Allen, 1913 -- invalid
  Choloepus capitalis J. A. Allen, 1913 -- invalid
  Choloepus florenciae J. A. Allen, 1913 -- invalid
  Choloepus hoffmanni augustinus J. A. Allen, 1913 -- valid
  Choloepus hoffmanni capitalis J. A. Allen, 1913 -- valid
  Choloepus hoffmanni florenciae J. A. Allen, 1913 -- invalid
  Chondrostoma toxostoma (Vallot, 1837) -- valid
  Choneplax Dall, 1882 -- valid
  Chordeumiidae Boxshall, 1988 -- valid
  Chordodes matensis Villalobos and Miralles, 1997 -- valid
  Chordodes nietoi Caballero y C., 1936 -- valid
  Chorisochismus dentex (Pallas, 1769) -- valid
  Chorizopes casictones Kallal & Hormiga, 2019 -- valid
  Choroterpes crocatus Allen, 1974 -- invalid
  Choroterpes kossi Allen, 1974 -- invalid
  Choroterpes mexicana Allen, 1974 -- invalid
  Choroterpes mexicanus Allen, 1974 -- invalid
  Choroterpes oaxacaensis Brusca and Allen, 1973 -- invalid
  Chrijsochlora Doleschall, 1856 -- invalid
  Chrijsochlora vitripennis Doleschall, 1856 -- invalid
  Chromadora antillensis (Allgen, 1947) -- valid
  Chromadora conicaudata Allgen, 1927 -- invalid
  Chromadora paramucrodonta Allgen, 1929 -- invalid
  Chromadorina armata (Allgen, 1933) -- valid
  Chromadorina pacifica (Allgen, 1947) -- valid
  Chromadorina parobtusa (Allgen, 1947) -- valid
  Chromadorina rognoeensis (Allgen, 1932) -- valid
  Chromadorita minor (Allgen, 1927) -- valid
  Chromasora parobtusa Allgen, 1947 -- invalid
  Chromis abrupta Randall, 2001 -- valid
  Chromis abyssicola Allen and Randall, 1985 -- valid
  Chromis acares Randall and Swerdloff, 1973 -- valid
  Chromis alleni Randall, Ida and Moyer, 1981 -- valid
  Chromis alpha Randall, 1988 -- valid
  Chromis bami Randall and McCosker, 1992 -- valid
  Chromis caudalis Randall, 1988 -- valid
  Chromis delta Randall, 1988 -- valid
  Chromis fatuhivae Randall, 2001 -- valid
  Chromis flavapicis Randall, 2001 -- valid
  Chromis flavaxilla Randall, 1994 -- valid
  Chromis flavipectoralis Randall, 1988 -- valid
  Chromis hanui Randall and Swerdloff, 1973 -- valid
  Chromis megalopsis Allen, 1976 -- invalid
  Chromis nigroanalis Randall, 1988 -- valid
  Chromis okamurai Yamakawa and Randall, 1989 -- valid
  Chromis pamae Randall and McCosker, 1992 -- valid
  Chromis pelloura Randall and Allen, 1982 -- valid
  Chromis struhsakeri Randall and Swerdloff, 1973 -- valid
  Chromis trialpha Allen and Randall, 1980 -- valid
  Chromis westaustralis Allen, 1976 -- valid
  Chromis xanthopterygia Randall and McCarthy, 1988 -- valid
  Chromis xutha Randall, 1988 -- valid
  Chrotopterus carrikeri J. A. Allen, 1910 -- invalid
  Chrysanthrax albicomus Tabet and Hall, 1987 -- valid
  Chrysanthrax neonebulosus Evenhuis and Hall, 0000 -- valid
  Chrysanthrax partita Tabet and Hall, 1987 -- valid
  Chrysanthrax petalonyx Tabet and Hall, 1987 -- valid
  Chrysiptera albata Allen and Bailey, 2002 -- valid
  Chrysiptera caeruleolineata (Allen, 1973) -- valid -- blueline damselfish
  Chrysiptera cymatilis Allen, 1999 -- valid
  Chrysiptera flavipinnis (Allen and Robertson, 1974) -- valid -- yellowfin damselfish
  Chrysiptera galba (Allen and Randall, 1974) -- valid
  Chrysiptera kuiteri Allen and Rajasuriya, 1995 -- valid
  Chrysiptera niger (Allen, 1975) -- valid -- black damselfish
  Chrysiptera nigra (Allen, 1975) -- invalid
  Chrysiptera notialis (Allen, 1975) -- valid
  Chrysiptera pricei Allen and Adrim, 1992 -- valid
  Chrysiptera sheila Randall, 1994 -- valid
  Chrysiptera sinclairi Allen, 1987 -- valid
  Chrysiptera springeri (Allen and Lubbock, 1976) -- valid
  Chrysiptera starcki (Allen, 1973) -- valid
  Chrysiptera talboti (Allen, 1975) -- valid
  Chrysiptera tricincta (Allen and Randall, 1974) -- valid -- threeband damselfish
  Chrysoarctus flabellatus (Grimaldi de Zio, D'Addabbo Gallo, Morone De Lucia, Vaccarella and Grimaldi, 1982) -- valid
  Chrysobothris breviloba Fall, 1910 -- valid
  Chrysobothris carmelita Fall, 1907 -- valid
  Chrysobothris convexa Fall, 1907 -- valid
  Chrysobothris micromorpha Fall, 1907 -- valid
  Chrysobothris monticola Fall, 1910 -- valid
  Chrysobothris pubescens Fall, 1907 -- invalid
  Chrysobothris smaragdula Fall, 1907 -- valid
  Chrysobothris sylvania Fall, 1910 -- valid
  Chrysolina varians (Schaller, 1783) -- valid
  Chrysosarus mariannae (Dalla Torre, 1896) -- invalid
  Chrysotrypanea Malloch, 1939 -- invalid
  Chrysotrypanea trifasciata Malloch, 1939 -- invalid
  Chrysotus anomalus Malloch, 1914 -- valid
  Chrysotus ciliatus Malloch, 1914 -- invalid
  Chrysotus flavisetus Malloch, 1914 -- valid
  Chtenopterygidae Allan, 1945 -- valid
  Chthonius aegatensis Callaini, 1989 -- invalid
  Chthonius azerbaidzhanus Schawaller and Dashdamirov, 1988 -- valid
  Chthonius bauneensis Callaini, 1983 -- invalid
  Chthonius berninii Callaini, 1983 -- invalid
  Chthonius brandmayri Callaini, 1986 -- invalid
  Chthonius caoduroi Callaini, 1987 -- valid
  Chthonius chius Schawaller, 1990 -- invalid
  Chthonius corsicus Callaini, 1981 -- invalid
  Chthonius giustii Callaini, 1981 -- invalid
  Chthonius guglielmii Callaini, 1986 -- valid
  Chthonius kabylicus Callaini, 1983 -- invalid
  Chthonius lanzai vannii Callaini, 1968 -- valid
  Chthonius leoi (Callaini, 1988) -- valid
  Chthonius lessiniensis Schawaller, 1982 -- valid
  Chthonius lucanus Callaini, 1984 -- invalid
  Chthonius malatestai Callaini, 1980 -- valid
  Chthonius mauritanicus (Callaini, 1988) -- valid
  Chthonius mingazzinii Callaini, 1991 -- valid
  Chthonius satapliaensis Schawaller and Dashdamirov, 1988 -- valid
  Chthonius schmalfussi Schawaller, 1990 -- invalid
  Chthonius tadzhikistanicus Dashdamirov and Schawaller, 1992 -- valid
  Chudalupia Wallwork, 1981 -- valid
  Chudalupia meridionalis Wallwork, 1981 -- valid
  Chunomysis Holt and W. M. Tattersall, 1905 -- valid
  Chunomysis diadema Holt and W. M. Tattersall, 1905 -- valid
  Chyromya concolor Malloch, 1914 -- invalid
  Chyromya femorella (Fallen, 1820) -- valid
  Chyromya nigrimana Malloch, 1914 -- invalid
  Cichla intermedia Machado-Allison, 1971 -- valid
  Cichlasoma ufermanni (Allgayer, 2002) -- valid -- mojarra del Usumacinta, Usumacinta cichlid
  Cicindela belfragei (Sallé, 1877) -- invalid -- Loamy-ground Tiger Beetle
  Cicindela depressula eureka Fall, 1901 -- valid -- Eureka Tiger Beetle
  Cicindela tranquebarica inyo Fall, 1917 -- invalid
  Cicindela tranquebarica viridissima Fall, 1910 -- valid -- Greenest Tiger Beetle, Santa Ana Tiger Beetle
  Ciconiidae Sundevall, 1836 -- valid -- Storks
  Cidarina Dall, 1909 -- valid
  Cimbocera conspersa Fall, 1907 -- valid
  Cimolus dilatatus (Dallas, 1852) -- valid
  Cinacanthus crenicollis (Fall, 1932) -- valid
  Cincinnatia monroensis (Dall, 1885) -- invalid -- Enterprise siltsnail
  Cinclidae Sundevall, 1836 -- valid -- Dippers
  Cingula aleutica Dall, 1886 -- valid
  Cingula fernandinae Dall, 1927 -- valid
  Cingula martyni Dall, 1887 -- valid
  Cingula robusta scipio Dall, 1887 -- invalid
  Cingula scipio Dall, 1887 -- valid
  Cionella nitens (Gallenstein, 1848) -- valid -- robust pillar
  Cionomimus Marshall, 1939 -- valid
  Circia tinctipennis Malloch, 1929 -- invalid
  Circomphalus callimorphus (Dall, 1902) -- valid
  Circomphalus strigillinus (Dall, 1902) -- valid -- empress venus
  Circulus margaritiformis Dall, 1927 -- valid
  Circulus rossellinus Dall, 1919 -- valid
  Circulus suppressus (Dall, 1889) -- valid -- suppressed vitrinella
  Circulus translucens Dall, 1927 -- valid
  Cirolana canaliculata Tattersall, 1921 -- valid
  Cirrhilabrus adornatus Randall and Kunzmann, 1998 -- valid
  Cirrhilabrus aurantidorsalis Allen and Kuiter, 1999 -- valid
  Cirrhilabrus balteatus Springer and Randall, 1974 -- valid
  Cirrhilabrus bathyphilus Randall and Nagareda, 2002 -- valid
  Cirrhilabrus blatteus Springer and Randall, 1974 -- valid
  Cirrhilabrus claire Randall and Pyle, 2001 -- valid
  Cirrhilabrus condei Allen and Randall, 1996 -- valid
  Cirrhilabrus earlei Randall and Pyle, 2001 -- valid
  Cirrhilabrus flavidorsalis Randall and Carpenter, 1980 -- valid
  Cirrhilabrus joanallenae Allen, 2000 -- valid
  Cirrhilabrus johnsoni Randall, 1988 -- valid
  Cirrhilabrus katherinae Randall, 1992 -- valid
  Cirrhilabrus laboutei Randall and Lubbock, 1982 -- valid
  Cirrhilabrus lanceolatus Randall and Masuda, 1991 -- valid
  Cirrhilabrus lineatus Randall and Lubbock, 1982 -- valid
  Cirrhilabrus lubbocki Randall and Carpenter, 1980 -- valid
  Cirrhilabrus lunatus Randall and Masuda, 1991 -- valid
  Cirrhilabrus luteovittatus Randall, 1988 -- valid
  Cirrhilabrus marjorie Allen, Randall and Carlson, 2003 -- valid
  Cirrhilabrus melanomarginatus Randall and Shen, 1978 -- valid
  Cirrhilabrus morrisoni Allen, 1999 -- valid
  Cirrhilabrus punctatus Randall and Kuiter, 1989 -- valid
  Cirrhilabrus pylei Allen and Randall, 1996 -- valid
  Cirrhilabrus randalli Allen, 1995 -- valid
  Cirrhilabrus rhomboidalis Randall, 1988 -- valid
  Cirrhilabrus roseafascia Randall and Lubbock, 1982 -- valid
  Cirrhilabrus rubimarginatus Randall, 1992 -- invalid
  Cirrhilabrus rubrimarginatus Randall, 1992 -- valid
  Cirrhilabrus rubripinnis Randall and Carpenter, 1980 -- valid
  Cirrhilabrus rubrisquamis Randall and Emery, 1983 -- valid
  Cirrhilabrus rubriventralis Springer and Randall, 1974 -- valid
  Cirrhilabrus scottorum Randall and Pyle, 1989 -- valid
  Cirrhilabrus tonozukai Allen and Kuiter, 1999 -- valid
  Cirrhilabrus walindi Allen and Randall, 1996 -- valid
  Cirrhilabrus walshi Randall and Pyle, 2001 -- valid
  Cirrhitichthys falco Randall, 1963 -- valid
  Cirrhitichthys serratus Randall, 1963 -- invalid
  Cirricaecula macdowelli McCosker and Randall, 1993 -- valid
  Cirripectes filamentosus (Alleyne and Macleay, 1877) -- valid
  Cirripectes quagga (Fowler and Ball, 1924) -- valid
  Cirrodrilus thysanosomus (Hall, 1914) -- invalid
  Cis caseyi Dalla Torre, 1911 -- invalid
  Cis ephippium Dalla Torre, 1911 -- invalid
  Cis insulicola Dalla Torre, 1911 -- valid
  Cis krausi Dalla Torre, 1911 -- valid
  Cis levellei Dalla Torre, 1911 -- invalid
  Cis nubilus Dalla Torre, 1911 -- invalid
  Cisticola chiniana smithersi B. P. Hall, 1956 -- valid
  Cisticola exilis rusticus Wallace, 1863 -- valid
  Cisticola juncidis fuscicapilla Wallace, 1864 -- valid
  Cisticola ruficeps scotoptera (Sundevall, 1850) -- valid
  Cisticolidae Sundevall, 1872 -- valid
  Cladocarpus Allman, 1874 -- valid
  Cladocarpus dolichotheca Allman, 1877 -- valid
  Cladocarpus paradiseus Allman, 1877 -- valid
  Cladocarpus sigma (Allman, 1877) -- valid
  Cladocarpus ventricosus Allman, 1877 -- valid
  Cladochaeta floridana (Malloch, 1924) -- valid
  Cladocoryne pelagica Allman, 1876 -- invalid
  Cladocorynidae Allman, 1872 -- valid
  Cladotanytarsus viridiventris (Malloch, 1915) -- valid
  Claparediellidae Allgen, 1954 -- invalid
  Clarkhydrus deceptus (Fall, 1932) -- valid
  Clastoptera arborina Ball, 1927 -- valid -- Red cedar spittlebug
  Clastoptera binotata Ball, 1895 -- valid
  Clastoptera brunnea Ball, 1919 -- valid
  Clastoptera juniperina Ball, 1919 -- valid
  Clastoptera lugubris Ball, 1919 -- valid
  Clastopteromyia floridana Malloch, 1924 -- invalid
  Clathria (Dendrocia) Hallmann, 1920 -- valid
  Clathria (Isociella) Hallmann, 1920 -- valid
  Clathrodrilla aenone Dall, 1919 -- invalid
  Clathromangelia fuscoligata (Dall, 1871) -- valid
  Clathurella canfieldi (Dall, 1871) -- valid
  Clathurella capaniola (Dall, 1919) -- valid
  Clathurella castianira Dall, 1919 -- valid
  Clavigralla hystrix Dallas, 1852 -- valid
  Cleantioides annandalei (Tattersall, 1921) -- valid
  Clemnius sylvanus (Fall, 1917) -- valid
  Cleonidius calandroides (Randall, 1838) -- valid
  Cleonidius erysimi (Fall, 1901) -- valid
  Cleptelmis addenda (Fall, 1907) -- valid
  Clethrionomys albiventer Hall and Gilmore, 1932 -- invalid
  Clethrionomys gapperi pallescens Hall and Cockrum, 1940 -- invalid
  Clethrionomys gapperi soleus Hall and Cockrum, 1952 -- invalid
  Clethrionomys gapperi solus Hall and Cockrum, 1952 -- invalid
  Clethrionomys gapperi stikinensis Hall and Cockrum, 1952 -- invalid
  Clethrionomys rufocanus (Sundevall, 1846) -- invalid -- Gray Red-backed Vole
  Clethrionomys rutilus (Pallas, 1779) -- invalid -- Northern Red-backed Vole
  Cletomorpha alternata (Dallas, 1852) -- valid
  Cletus fascialis (Dallas, 1852) -- valid
  Cletus punctiger (Dallas, 1852) -- valid
  Cletus pusillus (Dallas, 1852) -- valid
  Clientister yvesi Dégallier, 2004 -- valid
  Clinocardium fucanum (Dall, 1907) -- invalid -- strait cockle
  Clinocardium funcanum (Dall, 1907) -- invalid
  Clinocoris Fallén, 1829 -- invalid
  Clinohelea nebulosa (Malloch, 1915) -- invalid
  Clinopegma magnum (Dall, 1895) -- valid -- helmet whelk
  Clio occidentalis Dall, 1871 -- invalid
  Clio pyramidata antarctica Dall, 1908 -- valid
  Clione Pallas, 1774 -- valid
  Clione elegantissima Dall, 1871 -- invalid
  Clivina oregona Fall, 1922 -- valid
  Clivina sasajii Ball, 2001 -- valid
  Clivocampa Allen, 1994 -- valid
  Clivocampa solus Allen, 1994 -- valid
  Cloresmus similis (Dallas, 1852) -- valid
  Clubiona brevipes Blackwall, 1841 -- valid
  Clubiona decora Blackwall, 1859 -- valid
  Clubiona nigromaculosa Blackwall, 1877 -- valid
  Clubiona pulicaria Sundevall, 1831 -- invalid
  Clubiona pullicaria Sundevall, 1831 -- invalid
  Clusia occidentalis Malloch, 1918 -- valid
  Clusiodes americanus Malloch, 1922 -- valid
  Clusiodes apiculatus Malloch, 1922 -- valid
  Clusiodes duplicata Malloch, 1922 -- invalid
  Clusiodes geomyzinus (Fallen, 1823) -- valid
  Clusiodes johnsoni Malloch, 1922 -- valid
  Clusiodes nigripalpis Malloch, 1922 -- invalid
  Clusiodes orbitalis Malloch, 1922 -- valid
  Clusiosoma Malloch, 1926 -- valid
  Clusiosoma (Clusiosoma) Malloch, 1926 -- valid
  Clusiosoma biseriata Malloch, 1939 -- invalid
  Clusiosoma centrale Malloch, 1939 -- valid
  Clusiosoma centralis Malloch, 1939 -- invalid
  Clusiosoma partita Malloch, 1939 -- invalid
  Clusiosoma partitum Malloch, 1939 -- valid
  Clusiosoma pleurale Malloch, 1939 -- valid
  Clusiosoma pleuralis Malloch, 1939 -- invalid
  Clusiosoma puncticeps Malloch, 1939 -- invalid
  Clusiosoma semifusca Malloch, 1926 -- invalid
  Clusiosoma semifuscum Malloch, 1926 -- valid
  Clusiosomina Malloch, 1939 -- valid
  Clusiosomina puncticeps (Malloch, 1939) -- valid
  Clytia longicyatha (Allman, 1877) -- valid
  Cnemodon trochanterata Malloch, 1918 -- invalid
  Cnemomis dubia (Dallas, 1852) -- valid
  Cnemomis gracilis (Dallas, 1852) -- valid
  Cnephalocotes obscurus (Blackwall, 1834) -- valid
  Cnesterium Dall, 1898 -- invalid
  Cnidoscyphus marginatus (Allman, 1877) -- valid
  Cnopus nucleus (Fall, 1901) -- valid
  Cobbia simplex Allgen, 1929 -- valid
  Cobbiacanthonchus Allgen, 1953 -- invalid
  Coccivora McAtee and Malloch, 1925 -- valid
  Coccivora californica McAtee and Malloch, 1925 -- valid
  Coccopigya Marshall, 1986 -- valid
  Coccopygia Dall, 1889 -- invalid
  Cocculina Dall, 1882 -- valid
  Cocculina agassizi Dall, 1908 -- valid
  Cocculina beani Dall, 1882 -- valid
  Cocculina casanica Dall, 1919 -- valid -- alaska cocculina
  Cocculina georgiana Dall, 1927 -- valid
  Cocculina lissocona Dall, 1927 -- valid
  Cocculina portoricensis Dall and Simpson, 1901 -- valid
  Cocculina rathbuni Dall, 1882 -- valid
  Cocculina rotunda Dall, 1927 -- valid
  Cocculinidae Dall, 1882 -- valid
  Cochlespira elegans (Dall, 1881) -- valid -- elegant star-turris
  Cochlespira radiata (Dall, 1889) -- valid -- lesser star-turris
  Cochlicopa nitens (Gallenstein, 1848) -- valid -- robust pillar
  Cochliolepis holmesii (Dall, 1889) -- valid
  Cochliolepis striata Dall, 1889 -- valid -- striate scalesnail
  Cocotropus larvatus Poss and Allen, 1987 -- valid
  Codakia colpoica Dall, 1901 -- invalid
  Codakia cubana Dall, 1901 -- valid -- Cuba lucine
  Codakia orbiculata filiata Dall, 1901 -- valid
  Codakia recurvata Dall, 1901 -- invalid
  Codobidae Boxshall & Ohtsuka, 2001 -- valid
  Codocera gnatho (Fall, 1907) -- valid
  Coelambus fastidiosus Fall, 1919 -- invalid
  Coelambus intermedius Fall, 1919 -- invalid
  Coelioxita smithii (Dalla Torre, 1896) -- invalid
  Coelioxys cressoni Dalla Torre, 1896 -- invalid
  Coelioxys levigata Dalla Torre, 1896 -- invalid
  Coelioxys smithii Dalla Torre, 1896 -- valid
  Coelioxys totoneca Dalla Torre, 1896 -- invalid
  Coelocraera decellei Dégallier, 1983 -- valid
  Coelocraera endroedyi Dégallier, 1983 -- valid
  Coelocraera kistneri Dégallier, 1983 -- valid
  Coelocraera mariaeclarae Dégallier, 1983 -- valid
  Coelocraera mirifica australis Dégallier, 1983 -- valid
  Coelopeltis virgata Hallowell, 1854 -- invalid
  Coelops frithii sinicus G. M. Allen, 1928 -- valid
  Coelops sinicus G. M. Allen, 1928 -- invalid
  Coelorhynchus ventrilux Marshall and Iwamoto, 1973 -- invalid
  Coelostemma Dall, 1895 -- valid
  Coelotes Blackwall, 1841 -- valid
  Coendou bicolor richardsoni Allen, 1913 -- valid
  Coenonycha parvula Fall, 1901 -- valid
  Coenosia aliena Malloch, 1921 -- valid
  Coenosia alticola Malloch, 1919 -- valid
  Coenosia anthracina Malloch, 1921 -- valid
  Coenosia argenticeps Malloch, 1920 -- valid
  Coenosia brunnescens Malloch, 1920 -- invalid
  Coenosia californica (Malloch, 1920) -- valid
  Coenosia cilicauda Malloch, 1920 -- valid
  Coenosia denticornis Malloch, 1920 -- invalid
  Coenosia dichaeta Malloch, 1920 -- invalid
  Coenosia dorsovittata Malloch, 1920 -- valid
  Coenosia errans Malloch, 1920 -- valid
  Coenosia fraterna Malloch, 1918 -- valid
  Coenosia frisoni Malloch, 1920 -- valid
  Coenosia fuscifrons Malloch, 1919 -- valid
  Coenosia impunctata Malloch, 1920 -- valid
  Coenosia johnsoni Malloch, 1920 -- valid
  Coenosia laricata Malloch, 1920 -- valid
  Coenosia longispinosa Malloch, 1920 -- invalid
  Coenosia mollicula (Fallen, 1825) -- valid
  Coenosia oregonensis Malloch, 1919 -- valid
  Coenosia parvisquama Malloch, 1919 -- invalid
  Coenosia pedella (Fallen, 1825) -- valid
  Coenosia pumila (Fallen, 1825) -- valid
  Coenosia semivitta (Malloch, 1918) -- valid
  Coenosia setigera Malloch, 1918 -- valid
  Coenosopsia prima Malloch, 1924 -- valid
  Coenus Dallas, 1851 -- valid
  Coenus tarsalis Dallas, 1851 -- invalid
  Coereba flaveola sanctithomae (Sundevall, 1869) -- valid
  Cogia Wallace, 1876 -- invalid
  Cokeria Marshall, 1916 -- invalid
  Cokeria southalli Marshall, 1916 -- invalid
  Colaspidea pallipes Fall, 1933 -- valid
  Colaspidea pomonae Fall, 1933 -- valid
  Coleorozena alicula (Fall, 1927) -- valid
  Colidotea findleyi R. C. Brusca & Wallerstein, 1977 -- valid
  Collabismodes tabaci Marshall, 1925 -- invalid
  Collessius tonkinensis (Galliard and Ngu, 1947) -- invalid
  Colletes petropolitanus Dalla Torre, 1897 -- valid
  Colletes robertsonii Dalla Torre, 1896 -- valid
  Collisella Dall, 1871 -- invalid
  Collisella Dall, 1871 -- valid
  Collisella limatula moerchii Dall -- valid
  Collisella ochracea (Dall, 1871) -- valid -- yellow limpet
  Collisellina Dall, 1871 -- invalid
  Colliuris ludoviciana (Sallé, 1849) -- valid
  Collocalia leucopygia Wallace, 1864 -- invalid
  Coloboneura exquisita Malloch, 1923 -- invalid
  Colobus langi J. A. Allen, 1925 -- invalid
  Coloeus dauuricus (Pallas, 1776) -- valid -- Daurian Jackdaw
  Colomascirtus condor (Almendáriz, Brito-M., Batallas-R. and Ron, 2014) -- invalid
  Colomboscia bituberculata Taiti, Allspach & Ferrara, 1995 -- valid
  Colonides collegii guyanensis Dégallier, 1998 -- valid
  Colopterus truncata (Randall, 1838) -- invalid
  Colopterus truncatus (Randall, 1838) -- valid
  Colorhamphus Sundevall, 1872 -- valid
  Colotrachelus Marshall, 1986 -- valid
  Colposternus Fall, 1905 -- valid
  Coluber ashmeadii Hallowell, 1845 -- invalid
  Coluber atratus Hallowell, 1845 -- invalid
  Coluber dione Pallas, 1773 -- invalid
  Coluber fuliginosus Hallowell, 1845 -- invalid
  Coluber halys Pallas, 1776 -- invalid
  Coluber lateralis (Hallowell, 1853) -- valid -- Culebra-chirriadora rayada, Striped Racer
  Coluber lateralis lateralis (Hallowell, 1853) -- valid -- California Striped Racer
  Coluber persa Pallas, 1814 -- invalid
  Coluber phillipsii Hallowell, 1844 -- invalid
  Coluber sauromates Pallas, 1811 -- invalid
  Coluber scutatus Pallas, 1771 -- invalid
  Coluber spixii Hallowell, 1845 -- invalid
  Coluber taeniatus (Hallowell, 1852) -- valid -- Culebra-chirriadora adornada, Striped Whipsnake
  Coluber taeniatus taeniatus (Hallowell, 1852) -- valid -- Desert Striped Whipsnake
  Columba rupestris Pallas, 1811 -- valid -- Hill Pigeon
  Columba rupestris rupestris Pallas, 1811 -- valid
  Columbella somersiana Dall and Bartsch, 1911 -- invalid
  Colus acosmius (Dall, 1891) -- valid
  Colus adonis (Dall, 1919) -- valid
  Colus aphelus (Dall, 1890) -- valid -- oblique whelk
  Colus aurantius (Dall, 1907) -- valid -- broad-cord whelk
  Colus barbarinus Dall, 1919 -- valid -- Santa Barbara whelk
  Colus bristolensis Dall, 1919 -- valid
  Colus brunneus (Dall, 1877) -- valid -- brown whelk
  Colus calameus (Dall, 1907) -- valid
  Colus calathus Dall, 1919 -- valid
  Colus callorhinus (Dall, 1877) -- valid -- strombiform whelk
  Colus capponius Dall, 1919 -- valid
  Colus clementinus Dall, 1919 -- invalid
  Colus dalmasius (Dall, 1919) -- valid
  Colus dautzenbergi (Dall, 1916) -- valid
  Colus errones Dall, 1919 -- valid -- wayward whelk
  Colus esychus (Dall, 1907) -- valid
  Colus georgianus (Dall, 1921) -- valid
  Colus griseus (Dall, 1890) -- valid -- gray whelk
  Colus halibrectus (Dall, 1891) -- valid
  Colus halidonus Dall, 1919 -- valid
  Colus halimeris (Dall, 1919) -- valid
  Colus halli (Dall, 1873) -- invalid
  Colus hallii (Dall, 1873) -- valid
  Colus herendeenii (Dall, 1902) -- valid -- thin-ribbed whelk
  Colus hypolispus (Dall, 1891) -- invalid -- oblique whelk, oblique whelk
  Colus incisus (Dall, 1919) -- valid
  Colus jordani (Dall, 1913) -- valid
  Colus morditus (Dall, 1919) -- invalid -- shrew whelk
  Colus nobilis (Dall, 1919) -- invalid -- noble whelk
  Colus oceanodromae (Dall, 1919) -- valid -- seahorse whelk
  Colus ombronius Dall, 1919 -- valid -- shady whelk
  Colus periscelidus (Dall, 1891) -- valid -- garter whelk
  Colus perminutus (Dall, 1927) -- valid
  Colus pulcius (Dall, 1919) -- valid
  Colus roseus (Dall, 1877) -- valid -- rosy whelk
  Colus rushii Dall, 1889 -- valid
  Colus sapius (Dall, 1919) -- valid
  Colus severinus (Dall, 1919) -- valid
  Colus stejnegeri (Dall, 1884) -- valid
  Colus tahwitanus (Dall, 1918) -- valid
  Colus timetus (Dall, 1919) -- valid
  Colus trombinus (Dall, 1919) -- valid
  Colus trophius (Dall, 1919) -- valid
  Colus virens (Dall, 1877) -- valid -- green whelk
  Colymbus ruficollis Pallas, 1764 -- invalid
  Comasarcophaga texana Hall, 1931 -- valid
  Comephorus baikalensis (Pallas, 1776) -- valid -- greater oilfish
  Comopithecus J. A. Allen, 1925 -- invalid
  Compressidens ophiodon (Dall, 1881) -- valid -- flattened toothshell
  Compsodrillia acestra (Dall, 1889) -- valid
  Compsodrillia alcestis (Dall, 1919) -- valid
  Compsodrillia eucosmia (Dall, 1889) -- valid
  Compsodrillia haliostrephis (Dall, 1889) -- valid
  Compsodrillia haliplexa (Dall, 1919) -- valid
  Compsodrillia thestia (Dall, 1919) -- valid
  Compsodrillia tristicha (Dall, 1889) -- valid
  Conchapelopia currani Walley, 1925 -- valid
  Conchapelopia pilicaudatus (Walley, 1925) -- valid
  Condyloppia pilosella longiseta (Wallwork, 1964) -- valid
  Condylostylus ogilvii (Malloch, 1932) -- valid
  Conicera barberi (Malloch, 1913) -- valid
  Conicera latimana Malloch, 1924 -- invalid
  Coniceromyia latimana (Malloch, 1924) -- valid
  Coniophanes Hallowell in Cope, 1860 -- valid -- Black-striped Snakes
  Coniophanes taylori Hall, 1951 -- valid
  Conioscinella hinkleyi (Malloch, 1915) -- valid
  Conniella Allen, 1983 -- valid
  Conniella apterygia Allen, 1983 -- valid
  Conochilopsis Segers and Wallace, 2000 -- valid
  Conolaimella Allgen, 1930 -- invalid
  Conostethus roseus (Fallén, 1829) -- valid
  Conostigmus atelopterus (Marshall, 1868) -- valid
  Conothele malayana (Doleschall, 1859) -- valid
  Conotrachelus atokanus Fall, 1913 -- invalid
  Conotrachelus biscaynensis Fall, 1917 -- valid
  Conotrachelus floridanus Fall, 1913 -- valid
  Conotrachelus invadens Fall, 1907 -- valid
  Conotrachelus neomexicanus Fall, 1913 -- valid
  Conotrachelus retusus Fall, 1929 -- valid
  Contopus caribaeus morenoi Burleigh & Duvall, 1948 -- valid
  Contopus cooperi (Nuttall, 1831) -- valid -- moucherolle ŕ côtés olive, Olive-sided Flycatcher
  Conus amphiurgus Dall, 1889 -- valid
  Conus diadema pemphigus Dall, 1910 -- valid
  Conus princeps apogrammatus Dall, 1910 -- valid
  Conus rejectus Dall, 1910 -- invalid
  Conus stimpsoni Dall, 1902 -- valid -- yellow cone
  Conus xanthicus Dall, 1910 -- invalid
  Convexa Ballantyne in Ballantyne and Lambkin, 2009 -- valid
  Cooperellidae Dall, 1900 -- invalid
  Cophixalus bewaniensis Kraus and Allison, 2000 -- valid
  Cophixalus caverniphilus Kraus and Allison, 2009 -- valid
  Cophixalus cupricarenus Kraus and Allison, 2009 -- valid
  Cophixalus desticans Kraus and Allison, 2009 -- valid
  Cophixalus interruptus Kraus and Allison, 2009 -- valid
  Cophixalus iovaorum Kraus and Allison, 2009 -- valid
  Cophixalus kethuk Kraus and Allison, 2009 -- valid
  Cophixalus linnaeus Kraus and Allison, 2009 -- valid
  Cophixalus melanops Kraus and Allison, 2009 -- valid
  Cophixalus phaeobalius Kraus and Allison, 2009 -- valid
  Cophixalus pulchellus Kraus and Allison, 2000 -- valid
  Cophixalus sisyphus Kraus and Allison, 2006 -- invalid
  Cophixalus sphagnicola Zweifel and Allison, 1982 -- valid
  Cophixalus timidus Kraus and Allison, 2006 -- valid
  Cophixalus tomaiodactylus Kraus and Allison, 2009 -- valid
  Cophixalus variabilis Kraus and Allison, 2006 -- valid
  Coproica mitchelli (Malloch, 1913) -- valid
  Copromyza equina Fallen, 1820 -- valid
  Copromyza fontinalis Fallen, 1826 -- invalid
  Copromyza limosa Fallen, 1820 -- invalid
  Copromyza neglecta (Malloch, 1913) -- valid
  Copromyza pusilla Fallen, 1820 -- invalid
  Coptodera brunnea Shpeley and Ball, 1994 -- valid
  Copturus floridanus (Fall, 1906) -- valid
  Coracina dobsoni (Ball, 1872) -- valid
  Coralliophila lactuca Dall, 1889 -- invalid
  Coralliophila orcuttiana Dall, 1919 -- valid
  Corbula cymella Dall, 1881 -- valid -- wavy corbula
  Corbula kelseyi Dall, 1916 -- valid -- kelsey corbula
  Corbula porcella Dall, 1916 -- valid -- ribbed corbula
  Cordilura Fallen, 1810 -- valid
  Cordilura banski (Malloch, 1923) -- valid
  Cordilura beringensis Malloch, 1923 -- invalid
  Cordilura deceptiva Malloch, 1923 -- valid
  Cordilura emarginata (Malloch, 1923) -- valid
  Cordilura loxocerata Fallen, 1826 -- invalid
  Cordilura luteola Malloch, 1924 -- valid
  Cordilura marginata (Malloch, 1931) -- valid
  Cordilura nigrita Fallen, 1819 -- invalid
  Cordilura obscura Fallen, 1819 -- invalid
  Cordilura planiceps Fallen, 1826 -- invalid
  Cordilura spinimana Fallen, 1819 -- invalid
  Cordilura tarsalis (Malloch, 1923) -- valid
  Cordylophora Allman, 1844 -- valid
  Cordylophora caspia (Pallas, 1771) -- valid -- freshwater hydroid, freshwater hydroid
  Cordylophora lacustris Allman, 1844 -- invalid
  Cordylurella Malloch, 1919 -- valid
  Cordylurella subvittata Malloch, 1919 -- invalid
  Coregonus autumnalis (Pallas, 1776) -- valid -- Arctic cisco
  Coregonus muksun (Pallas, 1814) -- valid
  Coregonus nasus (Pallas, 1776) -- valid -- broad whitefish
  Coregonus tugun (Pallas, 1814) -- valid
  Coridius chinensis (Dallas, 1851) -- valid
  Corimelaena (Parapora) McAtee and Malloch, 1933 -- valid
  Corimelaena (Termapora) McAtee and Malloch, 1933 -- valid
  Corimelaena alpina (McAtee and Malloch, 1933) -- valid
  Corimelaena barberi (McAtee and Malloch, 1933) -- valid
  Corimelaena contrasta (McAtee and Malloch, 1933) -- valid
  Corimelaena feminea (McAtee and Malloch, 1933) -- valid
  Corimelaena harti Malloch, 1919 -- valid
  Corimelaena incognita (McAtee and Malloch, 1933) -- valid
  Corimelaena interrupta Malloch, 1919 -- valid
  Corimelaena marginella Dallas, 1851 -- valid
  Corimelaena minutissima Malloch, 1919 -- valid
  Corimelaena nigra Dallas, 1851 -- valid
  Corimelaena polita Malloch, 1919 -- valid
  Corimelaena virilis (McAtee and Malloch, 1933) -- valid
  Corinnaeturris leucomata Dall, 1881 -- invalid
  Coriphilus rubronotatus Wallace, 1862 -- invalid
  Coris aurilineata Randall and Kuiter, 1982 -- valid
  Coris bulbifrons Randall and Kuiter, 1982 -- valid
  Coris centralis Randall, 1999 -- valid
  Coris debueni Randall, 1999 -- valid
  Coris hewetti Randall, 1999 -- valid
  Coris marquesensis Randall, 1999 -- valid
  Coris pictoides Randall and Kuiter, 1982 -- valid
  Coris roseoviridis Randall, 1999 -- valid
  Corixidea major McAtee and Malloch, 1925 -- valid
  Cornufer browni (Allison and Kraus, 2001) -- valid
  Cornufer bufonulus (Kraus and Allison, 2007) -- valid
  Cornufer caesiops (Kraus and Allison, 2009) -- valid
  Cornufer manus (Kraus and Allison, 2009) -- valid
  Cornufer sulcatus (Kraus and Allison, 2007) -- valid
  Corolla Dall, 1871 -- valid
  Corolla spectabilis Dall, 1871 -- valid -- spectacular corolla
  Corophium volutator (Pallas, 1766) -- valid
  Corticoris McAtee and Malloch, 1922 -- valid
  Corvus dauuricus Pallas, 1776 -- invalid -- Daurian Jackdaw
  Corydoras bertoni Eigenmann in Eigenmann and Allen, 1942 -- valid
  Corydoras leucomelas Eigenmann and Allen, 1942 -- valid
  Corydoras stenocephalus Eigenmann and Allen, 1942 -- valid
  Corydoras zygatus Eigenmann and Allen, 1942 -- valid
  Corymorpha groenlandica (Allman, 1876) -- valid
  Corymorphidae Allman, 1872 -- valid
  Corynactis Allman, 1846 -- valid
  Coryne eximia Allman, 1859 -- valid
  Corynorhinus H. Allen, 1865 -- valid -- big-eared bats
  Corynorhinus megalotis mexicanus G. M. Allen, 1916 -- invalid
  Corynorhinus mexicanus G. M. Allen, 1916 -- valid -- Mexican Big-eared Bat, Murciélago-mula Mexicano
  Corynorhinus phyllotis G. M. Allen, 1916 -- invalid
  Coryogalops monospilus Randall, 1994 -- valid
  Coryogalops tessellatus Randall, 1994 -- valid
  Coryphaenoides alateralis Marshall and Iwamoto, 1973 -- valid
  Coryphaenoides colon Marshall and Iwamoto, 1973 -- invalid
  Corythoichthys amplexus Dawson and Randall, 1975 -- valid
  Corythopis Sundevall, 1836 -- valid
  Corythornis cristatus (Pallas, 1764) -- valid -- Malachite Kingfisher, Martín pescador malaquita, Martin-pęcheur huppé, pica-peixe-de-poupa
  Corythornis cristatus cristatus (Pallas, 1764) -- valid -- Malachite Kingfisher
  Cosmetopus bryanti Malloch, 1932 -- invalid
  Cosmioconcha Dall, 1913 -- valid
  Cosmioconcha calliglypta (Dall and Simpson, 1901) -- valid -- flame dovesnail
  Cosmioconcha palmeri (Dall, 1913) -- valid
  Cosmioconcha parvula (Dall, 1912) -- valid
  Cosmioconcha pergracilis (Dall, 1913) -- valid
  Cosmioconcha perpicta Dall and Simpson, 1901 -- invalid
  Cosmocampus banneri (Herald and Randall, 1972) -- valid
  Cosmocampus darrosanus (Dawson and Randall, 1975) -- valid
  Cosmoclopius annulipes (Fallou, 1887) -- valid
  Cosmopepla conspicillaris (Dallas, 1851) -- valid
  Cosmophasis viridifasciata (Doleschall, 1859) -- valid
  Cosmotriphora olivacea (Dall, 1889) -- valid
  Cotalpa leonina Fall, 1932 -- invalid
  Cotesia abjecta (Marshall, 1885) -- valid
  Cotesia astrarches (Marshall, 1889) -- valid
  Cotesia bignellii (Marshall, 1885) -- valid
  Cotesia ferruginea (Marshall, 1885) -- valid
  Cotesia geryonis (Marshall, 1885) -- valid
  Cotesia gonopterygis (Marshall, 1898) -- valid
  Cotesia jucunda (Marshall, 1885) -- valid
  Cotesia limbata (Marshall, 1885) -- valid
  Cotesia nothus (Marshall, 1885) -- valid
  Cotesia rubecula (Marshall, 1885) -- valid
  Cotesia salebrosa (Marshall, 1885) -- valid
  Cotesia urabae Austin and Allen, 1989 -- valid
  Cotesia zygaenarum (Marshall, 1885) -- valid
  Cotinis impia (Fall, 1905) -- valid
  Cottogaster cheneyi Evermann and Kendall, 1898 -- invalid
  Cottothucha kalathis Runagall-Mcnaull and Cassis, 2013 -- valid
  Cottus platycephalus Pallas, 1814 -- invalid
  Crabro altigena Dalla Torre, 1897 -- valid
  Crabro bellulus (Dalla Torre, 1897) -- invalid
  Crabro canadensis Dalla Torre, 1897 -- invalid
  Crabro carbonicolor Dalla Torre, 1897 -- invalid
  Crabro interruptulus Dalla Torre, 1897 -- invalid
  Crabro rufitarsis Dalla Torre, 1897 -- invalid
  Crabro scutellifer Dalla Torre, 1897 -- invalid
  Crabro servus Dalla Torre, 1897 -- invalid
  Crabro verhoeffi Dalla Torre, 1897 -- invalid
  Crama Galloway, 1984 -- valid
  Crama reticulata Galloway, 1984 -- valid
  Crangon laevis (Randall, 1840) -- invalid
  Crania kermes Dall, 1920 -- invalid
  Crania lamellosa Dall, 1920 -- invalid
  Crania rostrata Dall, 1920 -- invalid
  Craniscus Dall, 1871 -- valid
  Cranocephalus Bovallius, 1890 -- valid
  Cranopsis erecta (Dall, 1889) -- valid -- erect puncturella
  Cranopsis major (Dall, 1891) -- valid -- great puncturella
  Cranopsis multistriata (Dall, 1914) -- valid -- many-rib puncturella
  Craseomys aquilus G. M. Allen, 1912 -- invalid
  Crassinella dupliniana (Dall, 1903) -- valid -- pointed crassinella
  Crassispira bacchia Dall, 1919 -- valid
  Crassispira candace Dall, 1919 -- valid
  Crassispira greeleyi (Dall, 1901) -- valid
  Crassispira gundlachi (Dall and Simpson, 1901) -- valid
  Crassispira halis Dall, 1919 -- valid
  Crassispira leucocyma Dall, 1883 -- valid
  Crassispira melonesiana (Dall and Simpson, 1901) -- valid
  Crassispira nigricans Dall, 1919 -- invalid
  Crassispira polytorta (Dall, 1881) -- valid
  Crassispira rugitecta (Dall, 1918) -- valid
  Crassispira tepocana Dall, 1919 -- valid
  Craterocephalus fistularis Crowley, Ivantsoff and Allen, 1995 -- valid
  Craterocephalus helenae Ivantsoff, Crowley and Allen, 1987 -- valid
  Craterocephalus kailolae Ivantsoff, Crowley and Allen, 1987 -- valid
  Craterocephalus lentiginosus Ivantsoff, Crowley and Allen, 1987 -- valid
  Craterocephalus marianae Ivantsoff, Crowley and Allen, 1987 -- valid
  Craterocephalus pimatuae Crowley, Ivantsoff and Allen, 1991 -- valid
  Craterogeomys J. A. Allen, 1895 -- invalid
  Cratomorphus limai Zaragoza-Caballero, Domínguez-León and González-Ramírez in Zaragoza-Caballero et al., 2021 -- valid
  Creagrutus hysginus Harold, Vari, Machado-Allison and Provenzano, 1994 -- valid
  Creagrutus lepidus Vari, Harold, Lasso and Machado-Allison, 1993 -- valid
  Cremastocheilus quadratus Fall, 1912 -- valid
  Crematogaster gerstaeckeri Dalla Torre, 1892 -- valid
  Crematogaster gerstaeckeri gerstaeckeri Dalla Torre, 1892 -- valid
  Crematogaster obscurior Dalla Torre, 1892 -- valid
  Crematogaster sewellii dentata Dalla Torre, 1893 -- valid
  Cremersia spinicosta (Malloch, 1912) -- valid
  Crenella leana Dall, 1897 -- valid -- lea crenella
  Crenella rotundata Dall, 1916 -- valid
  Crenella seminuda (Dall, 1897) -- invalid -- partly-sculptured crenella
  Crenitis alticola (Fall, 1924) -- valid
  Crenitis longula (Fall, 1924) -- valid
  Crenitis longulus (Fall, 1924) -- invalid
  Crenitis seriellus (Fall, 1924) -- invalid
  Crepidobothrium lachesidis MacCallum, 1921 -- valid
  Crepidula glottidiarum Dall, 1905 -- valid
  Crepipatella orbiculata (Dall, 1919) -- valid -- round slippersnail
  Crepitacella columbella (Dall, 1881) -- valid
  Crepitacella gabbi (Dall, 1889) -- valid
  Crepitacella leucophlegma (Dall, 1881) -- valid
  Cribrilina punctata (Hassall, 1841) -- valid
  Cricetulus andersoni nigrescens G. M. Allen, 1925 -- invalid
  Cricetulus barabensis (Pallas, 1773) -- valid -- Striped Dwarf Hamster, Striped Hamster
  Cricetulus migratorius (Pallas, 1773) -- valid -- Gray Dwarf Hamster, Migratory Hamster
  Cricetulus triton collinus G. M. Allen, 1925 -- invalid
  Cricetulus triton fuscipes G. M. Allen, 1925 -- invalid
  Cricetus frumentarius Pallas, 1811 -- invalid
  Cricotopus brunnicans Walley, 1928 -- valid
  Cricotopus flavibasis Malloch, 1915 -- valid
  Cricotopus infuscatus (Malloch, 1915) -- valid
  Cricotopus pulchripes Verrall, 1912 -- valid
  Cricotopus slossonae Malloch, 1915 -- valid
  Crinophleba vitrinervis (Malloch, 1912) -- valid
  Crisia aculeata Hassall, 1841 -- valid
  Crisia aculeata aculeata Hassall, 1841 -- valid
  Cristacirrhitus Randall, 2001 -- valid
  Cristobalia Malloch, 1939 -- valid
  Cristobalia lutea Malloch, 1939 -- valid
  Crithagra leucopygia Sundevall, 1850 -- valid -- White-rumped Seedeater
  Crithagra leucopygia leucopygia Sundevall, 1850 -- valid
  Crithagra scotops Sundevall, 1850 -- valid -- Forest Canary
  Crithagra scotops scotops Sundevall, 1850 -- valid
  Crocidura fulvastra (Sundevall, 1843) -- valid -- Savanna Shrew
  Crocidura gmelini (Pallas, 1811) -- valid -- Gmelin's White-toothed Shrew
  Crocidura gueldenstaedtii (Pallas, 1811) -- invalid -- Gueldenstaedt's Shrew
  Crocidura olivieri hedenborgiana (Sundevall, 1843) -- valid
  Crocidura rapax G. Allen, 1923 -- valid -- Chinese White-toothed Shrew
  Crocidura rapax rapax G. Allen, 1923 -- valid
  Crocidura suaveolens (Pallas, 1811) -- valid -- Lesser Shrew, Lesser White-toothed Shrew
  Crocidura vorax G. Allen, 1923 -- valid -- Voracious Shrew
  Crocisa dimidiatipunctata Dalla Torre, 1896 -- invalid
  Crocisa smithii Dalla Torre, 1896 -- invalid
  Crockerella castianira (Dall, 1919) -- valid
  Crockerella cymodoce (Dall, 1919) -- valid
  Crockerella eriphyle (Dall, 1919) -- valid
  Crockerella evadne (Dall, 1919) -- valid
  Crockerella lowei (Dall, 1903) -- valid
  Crockerella philodice (Dall, 1919) -- valid
  Crocodilichthys Allen and Robertson, 1991 -- valid
  Crocodilichthys gracilis Allen and Robertson, 1991 -- valid -- lagartija tres aletas, lizard triplefin
  Crossocerus scutellifer (Dalla Torre, 1897) -- invalid
  Crossodactylus schmidti Gallardo, 1961 -- valid
  Crossopriza lyoni (Blackwall, 1867) -- valid
  Crossoptilon auritum (Pallas, 1811) -- valid -- Blue Eared Pheasant, White Eared Pheasant
  Crossorhombus howensis Hensley & Randall, 1993 -- valid
  Crotalus cerastes Hallowell, 1854 -- valid -- Sidewinder, Víbora-cascabel cornuda
  Crotalus cerastes cerastes Hallowell, 1854 -- valid -- Mohave Desert Sidewinder, Mojave Desert Sidewinder
  Crotalus ornatus Hallowell, 1854 -- valid -- Eastern Black-tailed Rattlesnake
  Crotonia brassicae Wallwork, 1977 -- valid
  Crotonia brevicornuta (Wallwork, 1966) -- valid
  Crotonia chiloensis Wallwork, 1977 -- valid
  Crotonia lanceolata Wallwork, 1977 -- valid
  Crotonia perforata Wallwork, 1977 -- valid
  Crumomyia subaptera (Malloch, 1923) -- valid
  Crybelocephalus Tattersall, 1906 -- valid
  Crybelocephalus megalurus Tattersall, 1906 -- valid
  Cryoturris cerinella (Dall, 1889) -- valid -- waxy mangelia
  Cryoturris citronella (Dall, 1889) -- valid
  Cryoturris elata (Dall, 1899) -- valid
  Cryoturris filifera (Dall, 1881) -- valid
  Cryptachaea riparia (Blackwall, 1834) -- valid
  Cryptasterina Dartnall, Byrne, Collins & Hart, 2003 -- valid
  Cryptasterina hystera Dartnall & Byrne, 2003 in Dartnall, Byrne, Collins & Hart, 2003 -- valid
  Cryptillas victorini (Sundevall, 1860) -- valid
  Cryptoblepharus nigropunctatus (Hallowell, 1861) -- valid -- Snake-eyed Skink
  Cryptobothria Wallwork, 1963 -- valid
  Cryptobothria monodactyla Wallwork, 1963 -- valid
  Cryptobranchia alba Dall, 1869 -- valid -- white blind limpet
  Cryptocelis arenicola Hallez, 1893 -- invalid
  Cryptocelis equiteni Hallez, 1888 -- valid
  Cryptocephalus amatus apicedens Fall, 1932 -- valid
  Cryptocephalus cuneatus Fall, 1932 -- valid
  Cryptocephalus merus Fall, 1932 -- valid
  Cryptocephalus pallidicinctus Fall, 1932 -- valid
  Cryptocheiridium somalicum Callaini, 1985 -- valid
  Cryptochironomus abbreviatus Malloch, 1915 -- invalid
  Cryptochironomus digitatus (Malloch, 1915) -- valid
  Cryptochironomus farinalis Walley, 1926 -- invalid
  Cryptochironomus grisa Malloch, 1915 -- invalid
  Cryptochironomus obtusilobus Malloch, 1923 -- invalid
  Cryptochironomus parvilamellatus Malloch, 1915 -- invalid
  Cryptoconchus floridanus (Dall, 1889) -- valid -- white-barred chiton
  Cryptognatha nodiceps Marshall, 1912 -- valid
  Cryptolarella abyssicola (Allman, 1888) -- valid
  Cryptolaria pectinata (Allman, 1888) -- valid
  Cryptolepas Dall, 1872 -- valid
  Cryptolepas rachianecti Dall, 1872 -- valid
  Cryptomys hottentotus nemo G. Allen, 1939 -- invalid
  Cryptomys hottentotus occlusus Allen and Loveridge, 1933 -- invalid
  Cryptonatica Dall, 1892 -- valid
  Cryptonatica aleutica (Dall, 1919) -- valid
  Cryptonchus abnormis (Allgen, 1933) -- valid
  Cryptopecten Dall, Bartsch and Rehder, 1938 -- valid
  Cryptopecten phrygium (Dall, 1886) -- valid -- spathate scallop
  Cryptorama Fall, 1905 -- valid
  Cryptorama oblongum Fall, 1905 -- valid
  Cryptorama vorticale Fall, 1905 -- valid
  Cryptorama vorticale minor Fall, 1905 -- valid
  Cryptorama vorticale vorticale Fall, 1905 -- valid
  Cryptoscatomaseter umbricollis (Fall, 1907) -- valid
  Cryptostemma uhleri McAtee and Malloch, 1925 -- valid
  Cryptostemmatidae McAtee and Malloch, 1925 -- invalid
  Cryptotis avia G. M. Allen, 1923 -- invalid -- Andean Small-eared Shrew
  Cryptotis nigrescens (J. A. Allen, 1895) -- valid -- Blackish Small-eared Shrew
  Cryptotis orophila (J. A. Allen, 1895) -- valid -- Central American Least Shrew
  Cryptotis parva orophila (J. A. Allen, 1895) -- invalid
  Cryptotis squamipes (J. A. Allen, 1912) -- valid -- Scaly-footed Small-eared Shrew, Western Colombian Small-eared Shrew
  Crystallodytes pauciradiatus Nelson and Randall, 1985 -- valid
  Crytochironomus digitatus Malloch, 1915 -- invalid
  Ctenactis echinata (Pallas, 1766) -- valid
  Cteniza brevidens (Doleschall, 1871) -- valid
  Ctenobelba apatomorpha Iturrondobeitia, Salońa, Andrés & Caballero, 1998 -- valid
  Ctenochaetus binotatus Randall, 1955 -- valid
  Ctenochaetus cyanocheilus Randall & Clements, 2001 -- valid
  Ctenochaetus cyanoguttatus Randall, 1955 -- invalid
  Ctenochaetus hawaiiensis Randall, 1955 -- valid -- chevron tang
  Ctenochaetus magnus Randall, 1955 -- invalid
  Ctenochaetus tominiensis Randall, 1955 -- valid
  Ctenochaetus truncatus Randall & Clements, 2001 -- valid
  Ctenogobiops formosa Randall, Shao and Chen, 2003 -- valid
  Ctenogobiops tongaensis Randall, Shao and Chen, 2003 -- valid
  Ctenogobius pseudofasciatus (Gilbert and Randall in Gilbert and Kelso, 1971) -- valid -- slashcheek goby
  Ctenogobius saepepallens (Gilbert and Randall, 1968) -- valid -- dash goby, gobio guión
  Ctenomys colburni J. A. Allen, 1903 -- valid -- Colburn's Tuco-tuco
  Ctenomys coyhaiquensis Kelt and Gallardo, 1994 -- valid -- Coyhaique Tuco-tuco
  Ctenomys magellanicus osgoodi Allen, 1905 -- valid
  Ctenomys sericeus J. A. Allen, 1903 -- valid -- Silky Tuco-tuco
  Ctenonotus acutus (Hallowell, 1857) -- invalid -- St. Croix Anole
  Ctenophorus mirrityana McLean, Moussalli, Saas and Stuart-Fox, 2013 -- valid -- Barrier Range Dragon
  Ctenopterygidae Allan, 1945 -- invalid
  Ctenus vagus Blackwall, 1866 -- valid
  Ctenus velox Blackwall, 1865 -- valid
  Ctenus vividus Blackwall, 1865 -- valid
  Cucullomyia pedunculata (Hall, 1931) -- valid
  Culex akritos Forattini and Sallum, 1995 -- valid
  Culex alinkios Sallum and Hutchings, 2003 -- valid
  Culex anoplicitus Forattini and Sallum, 1989 -- valid
  Culex brachiatus Hutchings and Sallum, 2008 -- valid
  Culex brumpti Galliard, 1931 -- valid
  Culex comptus Sá and Sallum in Sá et al., 2020 -- valid
  Culex eknomios Forattini and Sallum, 1992 -- valid
  Culex gnomatos Sallum, Hutchings, Leila and Ferreira, 1997 -- valid
  Culex ikelos Forattini and Sallum, 1995 -- valid
  Culex longisetosus Sá and Sallum in Sá et al., 2020 -- valid
  Culex longistylus Sá and Sallum in Sá et al., 2020 -- valid
  Culex phyllados Hutchings and Sallum, 2008 -- valid
  Culex pruina eschirasi Galliard, 1931 -- valid
  Culex rabelloi Forattini and Sallum, 1987 -- valid
  Culex ribeirensis Forattini and Sallum, 1985 -- valid
  Culex spathulatus Forattini and Sallum, 1987 -- valid
  Culex spinifer Sá and Sallum in Sá et al., 2020 -- valid
  Culex symbletos Sallum and Hutchings, 2003 -- valid
  Culicicapa helianthea (Wallace, 1865) -- valid -- Citrine Canary-Flycatcher
  Culicicapa helianthea helianthea (Wallace, 1865) -- valid
  Culicoides crepuscularis Malloch, 1915 -- valid
  Culicoides haematopotus Malloch, 1915 -- valid
  Culicoides hieroglyphicus Malloch, 1915 -- valid
  Culicoides multipunctatus Malloch, 1915 -- valid
  Cultellunguis perpallens (Fall, 1936) -- valid
  Cuon alpinus (Pallas, 1811) -- valid -- Asiatic Wild Dog, Dhole, Indian dhole, Red Dog
  Cuon alpinus alpinus (Pallas, 1811) -- valid
  Curculio crucifer Pallas, 1771 -- invalid
  Curimata cisandina (Allen in Eigenmann and Allen, 1942) -- valid
  Curtitoma fiora (Dall, 1919) -- valid
  Curtitoma lawrenciana (Dall, 1919) -- valid
  Curtius marginalis (Dallas, 1852) -- valid
  Cuspicona taeniola Dallas, 1851 -- invalid
  Cuspidaria apodema Dall, 1916 -- valid
  Cuspidaria arcuata Dall, 1881 -- valid
  Cuspidaria chilensis Dall, 1890 -- valid
  Cuspidaria jeffreysi (Dall, 1881) -- valid -- jeffrey dipperclam
  Cuspidaria microrhina Dall, 1886 -- valid -- little-snout dipperclam
  Cuspidaria perrostrata Dall, 1881 -- invalid
  Cuspidaria subglacialis Dall, 1913 -- valid -- subglacial dipperclam
  Cuspidariidae Dall, 1886 -- valid
  Cuterebra beameri Hall, 1943 -- invalid
  Cyamus orubraedon Waller, 1989 -- valid
  Cyamus scammoni Dall, 1872 -- valid
  Cyanistes cyanus (Pallas, 1770) -- valid -- Azure Tit
  Cyanistes cyanus cyanus (Pallas, 1770) -- valid
  Cyanopica cyana (Pallas, 1776) -- invalid
  Cyanopica cyanus (Pallas, 1776) -- valid
  Cyanopica cyanus cyanus (Pallas, 1776) -- valid
  Cyathocephalus truncatus (Pallas, 1781) -- valid
  Cyathodonta dubiosa Dall, 1915 -- valid -- doubtful thracid
  Cyathodonta pedroana Dall, 1915 -- valid -- San Pedro thraciid
  Cyatholaimus tautraense Allgen, 1933 -- invalid
  Cyatholaimus unalaskensis Allgen, 1957 -- valid
  Cybocephalus aonidiellae Kirejtshuk and Fallahzadeh, 2010 -- valid
  Cybocephalus assiduus Kirejtshuk and Fallahzadeh, 2008 -- valid
  Cycasia Malloch, 1942 -- invalid
  Cycasia oculata Malloch, 1942 -- invalid
  Cyclichthys spilostylus (Leis & Randall, 1982) -- valid
  Cyclinella Dall, 1902 -- valid
  Cyclocardia alaskana Dall, 1903 -- invalid
  Cyclocardia armilla (Dall, 1903) -- valid -- bracelet cyclocardia
  Cyclocardia gouldii (Dall, 1903) -- valid -- Gould cyclocardia
  Cyclocardia incisa (Dall, 1903) -- valid -- cut cyclocardia
  Cyclocardia nodulosa (Dall, 1919) -- valid
  Cyclocardia stearnsii (Dall, 1903) -- valid
  Cyclopecten alaskensis (Dall, 1871) -- valid -- alaska glass-scallop
  Cyclopecten davidsoni (Dall, 1897) -- valid -- salmon glass-scallop
  Cyclopecten incongruus Dall, 1916 -- valid
  Cyclopecten neoceanicus Dall, 1908 -- valid
  Cyclopecten reticulum (Dall, 1886) -- valid
  Cyclopecten ringnesius (Dall, 1924) -- valid -- Ringnes glass-scallop
  Cyclopecten sigsbeei (Dall, 1886) -- valid
  Cyclopecten thalassinus (Dall, 1886) -- valid -- cancellate dwarf scallop, costate glass-scallop
  Cyclophiops semicarinatus (Hallowell, 1861) -- valid -- Ryukyu Green Snake
  Cycloporus maculatus Hallez, 1893 -- valid
  Cyclopsia Malloch, 1939 -- valid
  Cyclopsia inaequalis Malloch, 1939 -- invalid
  Cycloramphus organensis Weber, Verdade, Salles, Fouquet and Carvalho-e-Silva, 2011 -- valid
  Cyclorrhynchus psittacula (Pallas, 1769) -- invalid
  Cyclosa bifida (Doleschall, 1859) -- valid
  Cyclosa conica (Pallas, 1772) -- valid
  Cyclosa conica conica (Pallas, 1772) -- invalid
  Cyclostrema cookeanum (Dall, 1818) -- valid
  Cyclostrema huesonicum (Dall, 1927) -- valid -- Key West cyclostreme
  Cyclostrema tortuganum (Dall, 1927) -- valid -- Tortugas cyclostreme
  Cyclostrema trochoides Dall, 1889 -- invalid
  Cyclostremiscus suppressus (Dall, 1889) -- valid -- suppressed vitrinella
  Cydippina Dall, 1900 -- invalid
  Cydnoides Malloch, 1919 -- valid
  Cydnoides (Cydnoides) Malloch, 1919 -- valid
  Cydnoides (Sayocoris) McAtee and Malloch, 1933 -- valid
  Cydnoides ciliatus orientis McAtee and Malloch, 1933 -- valid
  Cydnoides confusus McAtee and Malloch, 1933 -- valid
  Cydnus umbrinus Fallén, 1807 -- invalid
  Cylas pumilus Marshall, 1953 -- valid
  Cylichna diegensis (Dall, 1919) -- valid -- San Diego chalice-bubble
  Cylichna verrilli Dall, 1889 -- valid
  Cylichna vortex (Dall, 1881) -- valid
  Cylichnella harpa (Dall, 1871) -- invalid
  Cylichnium Dall, 1908 -- valid
  Cylindrocopturus centropictus (Fall, 1906) -- valid
  Cylindrocopturus dehiscens (Fall, 1906) -- valid
  Cylindrocopturus filicornis (Fall, 1906) -- valid
  Cylindrocopturus floridanus (Fall, 1906) -- valid
  Cylindrocopturus horridus (Fall, 1906) -- valid
  Cylindrocopturus jatrophae (Fall, 1906) -- valid
  Cylindrocopturus littoralis (Fall, 1906) -- valid
  Cylindrocopturus mediinotus (Fall, 1906) -- valid
  Cylindrocopturus princeps (Fall, 1906) -- valid
  Cylindrolaimus abnormis Allgen, 1933 -- valid
  Cylindrolaimus filicaudatus Allgen, 1933 -- valid
  Cylindrophis jodiae Amarasinghe, Ineich, Campbell and Hallermann, 2015 -- valid -- Jodi's Pipe-Snake
  Cylindrostoma inerme (Hallez, 1879) -- invalid
  Cylindrotheristus kornoeensis (Allgen, 1929) -- valid
  Cyllopodidae Bovallius, 1887 -- valid
  Cyllopsis gemma freemani (D. Stallings and Turner, 1947) -- valid
  Cymatium adairense Dall, 1910 -- invalid
  Cymatium amictum tremperi Dall, 1907 -- valid
  Cymatium pacificum Dall, 1909 -- invalid
  Cymatium pharicidum Dall, 1889 -- valid
  Cymatodera decipiens Fall, 1906 -- valid
  Cymatodera delicatula Fall, 1906 -- valid
  Cymatodera umbrina Fall, 1906 -- invalid
  Cymatoica Dall, 1889 -- valid
  Cymatoica orientalis (Dall, 1890) -- valid -- western tellin
  Cymatoica orientalis orientalis (Dall, 1890) -- valid
  Cymatosyrinx Dall, 1889 -- valid
  Cymatosyrinx centimata (Dall, 1889) -- valid
  Cymatosyrinx empyrosia (Dall, 1899) -- valid
  Cymatosyrinx fritellaria Dall, 1927 -- valid
  Cymatosyrinx halocydne (Dall, 1919) -- valid
  Cymatosyrinx pagodula (Dall, 1889) -- valid
  Cymbiodyta acuminata Fall, 1924 -- valid
  Cymbiodyta vindicata Fall, 1924 -- valid
  Cymodoce hodgsoni Tattersall, 1921 -- valid
  Cymodoce pelsarti Tattersall, 1922 -- valid
  Cymothoa caraibica Bovallius, 1885A -- valid
  Cymothoa elegans Bovallius, 1885A -- valid
  Cymothoa paradoxa Haller, 1880 -- valid
  Cymothoa rotundifrons Haller, 1880 -- valid
  Cymus claviculus (Fallén, 1807) -- valid
  Cynapes wrighti (Blackwall, 1877) -- valid
  Cynomys parvidens J. A. Allen, 1905 -- valid -- Utah Prairie Dog
  Cynops ensicauda (Hallowell, 1861) -- valid
  Cynops ensicauda ensicauda (Hallowell, 1861) -- invalid
  Cynoscion similis Randall and Cervigón, 1968 -- valid
  Cynthia montereyensis Dall, 1872 -- invalid
  Cyornis caerulatus rufifrons Wallace, 1865 -- valid
  Cyphobalaena Marschall, 1873 -- invalid
  Cyphoma aureocinctum (Dall, 1889) -- valid -- gold-line cyphoma
  Cyphomella grisa (Malloch, 1915) -- valid
  Cypraea annettae Dall, 1909 -- valid
  Cyptocephala elegans (Malloch, 1919) -- valid
  Cyrenella floridana Dall, 1896 -- invalid
  Cyrenoida floridana (Dall, 1896) -- valid -- Florida marshclam
  Cyrtarachne perspicillata (Doleschall, 1859) -- valid
  Cyrtarachne perspicillata perspicillata (Doleschall, 1859) -- valid
  Cyrtarachne tricolor (Doleschall, 1859) -- valid
  Cyrtarachne tricolor tricolor (Doleschall, 1859) -- invalid
  Cyrtepistomus Marshall, 1913 -- valid
  Cyrtodactylus murua Kraus and Allison, 2006 -- valid
  Cyrtophora exanthematica (Doleschall, 1859) -- valid
  Cyrtophora moluccensis (Doleschall, 1857) -- valid
  Cyrtophora moluccensis margaritacea (Doleschall, 1859) -- valid
  Cyrtophora moluccensis moluccensis (Doleschall, 1857) -- valid
  Cyrtophora unicolor (Doleschall, 1857) -- valid
  Cyrtorhinus caricis (Fallén, 1807) -- valid
  Cyrtusa superans Fall, 1910 -- invalid
  Cystignathus melanonotus Hallowell, 1861 -- invalid
  Cystiscus politulus (Dall, 1919) -- invalid -- polite marginella
  Cystisoma longipes (Bovallius, 1886) -- valid
  Cystodytes dellechiajei (Della Valle, 1877) -- valid
  Cytaea sinuata (Doleschall, 1859) -- valid
  Cytharella euryclea Dall, 1919 -- invalid
  Cytharella pyrrhula Dall, 1919 -- invalid
  Cyzenis albicans (Fallén, 1810) -- valid
  Dacopsis quadripunctata (Malloch, 1939) -- valid
  Dacrydium pacificum Dall, 1916 -- valid -- Pacific glassy-mussel
  Dactylamblyops Holt and W. M. Tattersall, 1906 -- valid
  Dactylamblyops goniops W. M. Tattersall, 1907 -- valid
  Dactylamblyops hodgsoni Holt and W. M. Tattersall, 1906 -- valid
  Dactylamblyops murrayi W. M. Tattersall, 1939 -- valid
  Dactylamblyops thaumatops W. M. Tattersall, 1907 -- valid
  Dactylerythrops Holt and W. M. Tattersall, 1905 -- valid
  Dactylerythrops bidigitata W. M. Tattersall, 1907 -- valid
  Dactylerythrops dactylops Holt and W. M. Tattersall, 1905 -- valid
  Dactylerythrops gracilura W. M. Tattersall, 1907 -- invalid
  Dactylobaetis navis Allen and Chao, 1978 -- invalid
  Dactylobaetis salinus Allen and Chao, 1978 -- invalid
  Dactylobaetis sinaloa Allen and Murvosh, 1987 -- invalid
  Dactylobaetis trivialis Allen and Chao, 1978 -- invalid
  Dactylochelifer minor Dashdamirov and Schawaller, 1995 -- valid
  Dactylochelifer scheuerni Schawaller, 1987 -- valid
  Dactylomys peruanus J. A. Allen, 1900 -- valid -- Montane Bamboo Rat
  Dacus aenigmaticus Malloch, 1931 -- invalid
  Dacus albolateralis Malloch, 1939 -- invalid
  Dacus atra Malloch, 1938 -- invalid
  Dacus distinctus Malloch, 1931 -- invalid
  Dacus fuscinervis (Malloch, 1932) -- valid
  Dacus incertus Malloch, 1938 -- invalid
  Dacus luteola Malloch, 1931 -- invalid
  Dacus obliquus Malloch, 1939 -- invalid
  Dacus obscurus Malloch, 1931 -- invalid
  Dacus ochrosiae Malloch, 1942 -- invalid
  Dacus pagdeni Malloch, 1939 -- invalid
  Dacus papuaensis Malloch, 1939 -- invalid
  Dacus peculiaris Malloch, 1939 -- invalid
  Dacus setinervis Malloch, 1938 -- invalid
  Dacus simulatus Malloch, 1939 -- invalid
  Dacus solomonensis Malloch, 1939 -- valid
  Dacus unifasciatus Malloch, 1939 -- invalid
  Dacus unipunctatus Malloch, 1939 -- invalid
  Dacus varipes Malloch, 1939 -- invalid
  Dacus vespoides (Doleschall, 1858) -- valid
  Dairella Bovallius, 1887 -- valid
  Dairella californica (Bovallius, 1885) -- valid
  Dairella latissima Bovallius, 1887 -- valid
  Dairellidae Bovallius, 1887 -- valid
  Daladeropsis africana (Dallas, 1852) -- valid
  Daladeropsis africana africana (Dallas, 1852) -- valid
  Dalium Dall, 1889 -- valid
  Dalium solidum Dall, 1889 -- valid
  Dallasiellus longulus (Dallas, 1851) -- valid
  Dalyellia graffi (Hallez, 1878) -- invalid
  Dalytyphloplanida Willems, Wallberg, Jondelius, Littlewood, Backeljau, Schockaert and Artois, 2006 -- valid
  Dama virginiana clavia (Barbour and G. M. Allen, 1922) -- invalid
  Damaliscus dorcas (Pallas, 1766) -- invalid
  Damaliscus pygargus (Pallas, 1767) -- valid -- bontebok, Bontebok (see comments)
  Damaliscus pygargus pygargus (Pallas, 1767) -- valid -- Bontebok
  Damaliscus pygarus dorcas (Pallas, 1766) -- invalid
  Damastes validus (Blackwall, 1877) -- valid
  Dannella bartoni (Allen, 1977) -- invalid
  Daphnella bartschi Dall, 1919 -- valid
  Daphnella corbicula Dall, 1889 -- valid
  Daphnella elata Dall, 1889 -- valid
  Daphnella eugrammata Dall, 1902 -- valid
  Daphnella fuscoligata (Dall, 1871) -- valid
  Daphnella grundifera (Dall, 1927) -- valid
  Daphnella leucophlegma (Dall, 1881) -- valid
  Daphnella morra (Dall, 1881) -- valid
  Daphnella peripla (Dall, 1881) -- valid
  Daphnella pompholyx Dall, 1889 -- valid
  Daphnella reticulosa Dall, 1889 -- valid
  Daphnella retifera Dall, 1889 -- valid
  Dascyllus auropinnis Randall and Randall, 2001 -- valid
  Dascyllus flavicaudus Randall and Allen, 1977 -- valid -- black damselfish, yellowtail dascyllus
  Dascyllus pomacentroides Kendall and Goldsborough, 1911 -- invalid
  Dasycorixa johanseni (Walley, 1931) -- valid
  Dasyhelea johannseni (Malloch, 1915) -- valid
  Dasyhelea major (Malloch, 1915) -- valid
  Dasymys incomtus (Sundevall, 1847) -- valid -- Common Dasymys
  Dasyopa pleuralis Malloch, 1918 -- inv