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Taxon author: Om.

ITIS records citing taxon author "Om."
 
 Kingdom Animalia
  Abacion magnum (Loomis, 1943) -- valid
  Abacion texensis (Loomis, 1937) -- valid
  Abaeletes Cooman, 1940 -- valid
  Abaeletes coomani Gomy, 1977 -- valid
  Abaeletes perroti (Cooman, 1940) -- valid
  Abeillia abeillei aurea W. Miller & Griscom, 1925 -- valid
  Abelocephala albula Ishikawa, Cai and Tomokuni, 2015 -- valid
  Abelocephala araiorum Ishikawa, Cai and Tomokuni, 2015 -- valid
  Abelocephala longiceps Ishikawa, Cai and Tomokuni, 2015 -- valid
  Abelocephala major Ishikawa, Cai and Tomokuni, 2015 -- valid
  Abelocephala nakatai Ishikawa, Cai and Tomokuni, 2015 -- valid
  Abelocephala yaeyamensis Ishikawa, Cai and Tomokuni, 2015 -- valid
  Abiomyia higona Nagatomi, 1975 -- valid
  Ablabes olivaceus Beddome, 1863 -- invalid
  Ablautus mcgregori Bromley, 1934 -- invalid
  Ablemma shimojanai (Komatsu, 1968) -- valid
  Ablepharipus congener (Dahlbom, 1844) -- invalid
  Abraeomorphus himalayae Gomy, 1980 -- valid
  Abraeomorphus topali Gomy, 1981 -- valid
  Abraeus loebli Gomy and Ôhara, 2001 -- valid
  Abrocoma budini Thomas, 1920 -- valid -- Budin's Chinchilla Rat
  Abrocoma cinerea Thomas, 1919 -- valid -- Ashy Chinchilla Rat
  Abrocoma famatina Thomas, 1920 -- valid -- Famatina Chinchilla Rat
  Abrocoma shistacea Thomas, 1921 -- valid -- Sierra del Tontal Chinchilla Rat
  Abrocoma vaccarum Thomas, 1921 -- valid -- Mendozan Chinchilla Rat
  Abrocomaphthirus chilensis (Gomez, 1998) -- valid
  Abrosiomyia bella Nagatomi, 1975 -- valid
  Abrothrix illuteus Thomas, 1925 -- valid -- Gray Akodont, Gray Grass Mouse
  Abrothrix jelskii (Thomas, 1894) -- valid -- Jelski's Altiplano Mouse, Ornate Akodont
  Abrothrix lanosus (Thomas, 1897) -- valid -- Woolly Akodont, Woolly Grass Mouse
  Abudefduf albofasciatus (Hombron and Jacquinot in Jacquinot and Guichenot, 1853) -- invalid -- whitebanded damselfish
  Abudefduf taurus (Müller and Troschel in Schomburgk, 1848) -- valid -- night sergeant, petaca toro, píntano toro
  Abyssothyris Thomson, 1927 -- valid
  Acalypta formosana Tomokuni, 1992 -- valid
  Acalypta tsurugisana Tomokuni, 1972 -- valid
  Acamptopoeum calchaqui Compagnucci, 2004 -- valid
  Acamptopoeum melanogaster Compagnucci, 2004 -- valid
  Acamptopoeum tintin Compagnucci, 2004 -- valid
  Acanthapseudes Roman, 1976 -- invalid
  Acanthapseudes elegans Roman, 1976 -- invalid
  Acanthaspis beauvoisi Fairmaire in Thomson, 1858 -- invalid
  Acanthaspis beauvoisii Fairmaire in Thomson, 1858 -- invalid
  Acanthocephalorhynchoides intermedius (Achmerov and Dombrovskaja-Achmerova, 1941) -- invalid
  Acanthocephalus curtus (Achmerov and Dombrovskaja-Achmerova, 1941) -- valid
  Acanthocephalus loktakensis Shomorendra, Ranibala and Jha, 2009 -- valid
  Acanthocephalus parallelotestis Achmerov and Dombrovskaja-Achmerova, 1941 -- valid
  Acanthocephalus tenuirostris (Achmerov and Dombrovskaja-Achmerova, 1941) -- valid
  Acanthocleithron Nichols and Griscom, 1917 -- valid
  Acanthocleithron chapini Nichols and Griscom, 1917 -- valid
  Acanthoderini Thomson, 1860 -- valid
  Acanthogyrus (Acanthosentis) intermedius (Achmerov and Dombrovskaja-Achmerova, 1941) -- invalid
  Acanthogyrus intermedius (Achmerov and Dombrovskaja-Achmerova, 1941) -- valid
  Acanthohaustorius pansus Thomas and J. L. Barnard, 1984 -- valid
  Acantholycosa azarkinae Marusik & Omelko, 2011 -- valid
  Acantholycosa kronestedti Fomichev & Marusik, 2018 -- valid
  Acantholycosa vahterae Fomichev & Marusik, 2018 -- valid
  Acantholycosa valeriae Omelko, Komisarenko & Marusik, 2016 -- valid
  Acantholycosa zonsteini Marusik & Omelko, 2017 -- valid
  Acanthopus goryi Romand, 1840 -- invalid
  Acarichthys heckelii (Müller and Troschel in Schomburgk, 1849) -- valid
  Acartia forcipata I. C. Thompson and A. Scott, 1898 -- valid
  Accalathura ochotensis Nunomura, 1976B -- valid
  Acentroptera basilica Thomson, 1856 -- valid
  Aceratophallus maya Loomis, 1964 -- valid
  Aceratophallus quadratus Loomis, 1961 -- valid
  Acerentomon bagnalli Womersley, 1927 -- valid
  Acerentomon nemorale Womersley, 1927 -- valid
  Acerentomon oblongum Womersley, 1927 -- valid
  Acerentulus sexpinatus Womersley, 1936 -- valid
  Acestrorhynchus microlepis (Schomburgk, 1841) -- valid
  Acetes intermedius Omori, 1975 -- valid -- Taiwan mauxia shrimp
  Acetes marinus Omori, 1975 -- valid
  Acheilognathus moriokae Jordan and Thompson, 1914 -- invalid
  Acheilognathus tabira Jordan and Thompson, 1914 -- valid
  Achelia aspera Loman, 1923 -- valid
  Achelia brevicauda (Loman, 1904) -- valid
  Achelia dohrni (Thomson, 1884) -- valid
  Achelia fernandeziana (Loman, 1920) -- valid
  Achelia kiiensis Utinomi, 1951 -- valid
  Achelia nana (Loman, 1908) -- valid
  Achelia ohshimai Utinomi, 1951 -- invalid
  Achelia parvula (Loman, 1923) -- valid
  Achelia segmentata Utinomi, 1954 -- invalid
  Achelia setulosa (Loman, 1912) -- valid
  Achelia socors (Loman, 1908) -- valid
  Achelia superba (Loman, 1911) -- valid
  Achorotile albosignata (Dahlbom, 1850) -- valid
  Achorutes copiosus Folsom, 1916 -- invalid
  Achorutes glasgowi Folsom, 1916 -- invalid
  Achorutes gracilis Folsom, 1899 -- invalid
  Achorutes guthriei Folsom, 1916 -- invalid
  Achorutes harveyi Folsom, 1902 -- invalid
  Achorutes humi Folsom, 1916 -- invalid
  Achorutes macgillivrayi (Folsom, 1916) -- invalid
  Achorutes maturus Folsom, 1916 -- invalid
  Achorutes packardi Folsom, 1902 -- invalid
  Achorutes sensilis Folsom, 1919 -- invalid
  Achromoporus Loomis, 1936 -- valid
  Achromoporus coloratus Loomis, 1936 -- valid
  Achromoporus enneryensis Loomis, 1936 -- valid
  Achromoporus furcipes Loomis, 1936 -- valid
  Achromoporus heteromus Loomis, 1941 -- valid
  Achromoporus robustus Loomis, 1936 -- valid
  Acidia johnsoni Thomas, 1914 -- invalid
  Aciliini Thomson, 1867 -- valid
  Acinia germanna Foote, Blanc & Norrbom, 1993 -- invalid
  Acmaeops Thomson, 1866 -- invalid
  Acodon bogotensis Thomas, 1895 -- invalid
  Acodon hirtus Thomas, 1895 -- invalid
  Acodon jelskii pyrrhotis Thomas, 1894 -- invalid
  Acomys airensis Thomas and Hinton, 1921 -- valid -- Western Saharan Spiny mouse
  Acomys dimidiatus homericus Thomas, 1923 -- invalid
  Acomys flavidus Thomas, 1917 -- invalid
  Acomys johannis Thomas, 1912 -- valid -- Johan's Spiny Mouse
  Acomys louisae Thomas, 1896 -- valid -- Louise's Spiny Mouse
  Acomys mullah Thomas, 1904 -- valid -- Mullah Spiny Mouse
  Acomys viator Thomas, 1902 -- invalid
  Acomys wilsoni Thomas, 1892 -- valid -- Wilson's Spiny mouse
  Aconaemys porteri Thomas, 1917 -- valid -- Porter's Rock Rat
  Acontosceles chujoi Yoshitomi and Satô, 2005 -- valid
  Acritodes Cooman, 1935 -- valid
  Acritodes cinghalanus Gomy, 1977 -- valid
  Acritodes maximus Gomy, 2005 -- valid
  Acritodes pubescens (Cooman, 1935) -- valid
  Acritus abundans Cooman, 1932 -- valid
  Acritus alticola Gomy, 1978 -- valid
  Acritus angoramensis Gomy, 1977 -- valid
  Acritus atai Gomy, 1984 -- valid
  Acritus australasiae Gomy, 1984 -- valid
  Acritus bikoi Gomy, 2001 -- valid
  Acritus bisulcithorax Cooman, 1936 -- valid
  Acritus blackburni Gomy, 1984 -- valid
  Acritus blighi Gomy, 1984 -- valid
  Acritus caldwelli Gomy, 1984 -- valid
  Acritus caledonicus Gomy, 1981 -- valid
  Acritus colettae Gomy, 1978 -- valid
  Acritus cooteri Gomy, 1999 -- valid
  Acritus copricola Cooman, 1932 -- valid
  Acritus courtoisi Gomy, 1978 -- valid
  Acritus deharvengi Gomy, 1981 -- valid
  Acritus dogueti Gomy, 1984 -- valid
  Acritus dugdalei Gomy, 1983 -- valid
  Acritus egregius Cooman, 1932 -- valid
  Acritus erimae Gomy, 1981 -- valid
  Acritus exquisitus Cooman, 1932 -- valid
  Acritus fidjensis Gomy, 1983 -- valid
  Acritus fidjicus Gomy, 1983 -- valid
  Acritus gibbipectus Cooman, 1932 -- valid
  Acritus griffithi Gomy, 1984 -- valid
  Acritus hammondi Gomy, 1980 -- valid
  Acritus helmsi Gomy, 1984 -- valid
  Acritus herbertfranzi Gomy, 1981 -- valid
  Acritus kuscheli Gomy, 1984 -- valid
  Acritus lamberti Gomy, 1994 -- valid
  Acritus leai Gomy, 1984 -- valid
  Acritus loriai Gomy, 1980 -- valid
  Acritus magnus Cooman, 1935 -- valid
  Acritus mahnerti Gomy, 1981 -- valid
  Acritus mandelai Gomy, 2001 -- valid
  Acritus mateui Gomy, 1988 -- valid
  Acritus matthewsi Gomy, 1984 -- valid
  Acritus microsomus Cooman, 1932 -- valid
  Acritus microtatus Cooman, 1934 -- valid
  Acritus muhlei Gomy, 2001 -- valid
  Acritus mulleri Gomy, 2007 -- valid
  Acritus nepalensis Gomy, 1976 -- valid
  Acritus novaeguineae Gomy, 1977 -- valid
  Acritus opimus Cooman, 1947 -- valid
  Acritus pascuarum Cooman, 1947 -- valid
  Acritus paulae Gomy, 1980 -- valid
  Acritus pectinatus Cooman, 1932 -- valid
  Acritus pirata Gomy, 1978 -- valid
  Acritus poggi Gomy, 1980 -- valid
  Acritus quilleroui Gomy, 1984 -- valid
  Acritus sulcatellus Cooman, 1935 -- valid
  Acritus tazekae Gomy, 1980 -- valid
  Acritus teaboomae Gomy, 1976 -- valid
  Acritus tuberisternus Cooman, 1932 -- valid
  Acritus udege Gomy and Tishechkin, 1993 -- valid
  Acritus vacheri Cooman, 1932 -- valid
  Acritus vaulogeri Cooman, 1935 -- valid
  Acritus wenzeli Gomy, 1981 -- valid
  Acritus werneri Gomy, 1981 -- valid
  Acrocassis rufula (Thomson, 1858) -- valid
  Acrocephalus stentoreus harterti Salomonsen, 1928 -- valid
  Acrocephalus stentoreus siebersi Salomonsen, 1928 -- valid
  Acrolophitus Thomas, 1871 -- valid
  Acrolophitus nevadensis (Thomas, 1873) -- valid
  Acrotona Thomson, 1859 -- valid
  Actina maculipennis Yang & Nagatomi, 1992 -- valid
  Actina spatulata Yang & Nagatomi, 1992 -- valid
  Actina xizangensis Yang & Nagatomi, 1992 -- valid
  Actinopygidae Domantay, 1969 -- invalid
  Acumontia Loman, 1898 -- valid
  Acumontia armata Loman, 1898 -- valid
  Acyliini Thomson, 1867 -- invalid
  Adaeum latens Loman, 1898 -- valid
  Adaeum obtectum Loman, 1898 -- valid
  Adamia Tomaszewska, 2000 -- invalid
  Adamia mexicana Tomaszewska, 2000 -- invalid
  Adrityla cucullata Loomis & Schmitt, 1971 -- valid
  Aega giganteocula Nunomura, 1988 -- valid
  Aega platyantennata Nunomura, 1993 -- valid
  Aega tumida Nunomura, 1988 -- valid
  Aegialia (Psammoporus) Thomson, 1863 -- valid
  Aegialomys xanthaeolus (Thomas, 1894) -- valid -- Yellowish Oryzomys, Yellowish Rice Rat
  Aegolius ridgwayi rostratus (Griscom, 1930) -- invalid
  Aegomorphus leucogenus (Thomson, 1868) -- invalid
  Aeletes franzi Gomy, 1984 -- valid
  Aeletes jamaicus Gomy, 1981 -- valid
  Aeletes leai Gomy, 1983 -- valid
  Aeletodes Gomy, 1977 -- valid
  Aeletodes minus Gomy, 1977 -- valid
  Aelurillus alboclypeus Azarkina & Komnenov, 2015 -- valid
  Aelurillus deltshevi Azarkina & Komnenov, 2015 -- valid
  Aelurillus tumidulus Wesolowska & Tomasiewicz, 2008 -- valid
  Aenigmathura Thomson, 1950 -- valid
  Aenigmathura lactanea Thomson, 1950 -- valid
  Aenigmopus Loomis & Hoffman, 1962 -- valid
  Aenigmopus alatus Loomis & Hoffman, 1962 -- valid
  Aeoloplides turnbulli (Thomas, 1872) -- valid
  Aeoloplides turnbulli turnbulli (Thomas, 1872) -- valid
  Aepeomys Thomas, 1898 -- valid -- Montane Mice
  Aepeomys lugens (Thomas, 1896) -- valid -- Mérida Aepeomys, Olive Montane Mouse
  Aepyceros melampus johnstoni Thomas, 1893 -- valid
  Aerodramus nuditarsus (Salomonsen, 1962) -- valid -- Bare-legged Swiftlet
  Aerodramus ocistus gilliardi (S. Somadikarta, 1994) -- valid
  Aerodramus orientalis leletensis (Salomonsen, 1962) -- valid
  Aerodramus spodiopygius delichon (Salomonsen, 1983) -- valid
  Aerodramus spodiopygius desolatus (Salomonsen, 1983) -- valid
  Aerodramus spodiopygius epiensis (Salomonsen, 1983) -- valid
  Aerodramus spodiopygius ingens (Salomonsen, 1983) -- valid
  Aerodramus spodiopygius noonaedanae (Salomonsen, 1983) -- valid
  Aerodramus vanikorensis lugubris (Salomonsen, 1983) -- valid
  Aerodramus vanikorensis pallens (Salomonsen, 1983) -- valid
  Aeropedellus clavatus (Thomas, 1873) -- valid
  Aethalodes alecto Thomas, 1923 -- invalid
  Aethalops Thomas, 1923 -- valid
  Aethalops alecto (Thomas, 1923) -- valid -- Common Pygmy Fruit Bat, Pygmy Fruit Bat
  Aethalops alecto alecto (Thomas, 1923) -- valid
  Aethiopoctines Thomson, 1868 -- invalid
  Aethomys Thomas, 1915 -- valid -- African Rock Rats
  Aethomys bocagei (Thomas, 1904) -- valid -- Bocage's Aethomys
  Aethomys chrysophilus imago Thomas, 1927 -- invalid
  Aethomys hindei (Thomas, 1902) -- valid -- Hinde's Aethomys
  Aethomys ineptus (Thomas and Wroughton, 1908) -- valid -- Tete Veld Aethomys
  Aethomys namaquensis calarius Thomas, 1926 -- invalid
  Aethomys namaquensis siccatus Thomas, 1926 -- invalid
  Aethomys nyikae (Thomas, 1897) -- valid -- Nyika Aethomys
  Aethomys stannarius (Thomas, 1913) -- valid -- West African Aethomys
  Aethon percis (G. M. Thomson, 1889) -- valid
  Aethopyga primigenia diuatae Salomonsen, 1953 -- valid
  Afranthidium guillarmodi (Mavromoustakis, 1951) -- valid
  Afranthidium haplogastrum (Mavromoustakis, 1951) -- valid
  Afranthidium hoplogastrum (Mavromoustakis, 1934) -- valid
  Afranthidium hypocapicola (Mavromoustakis, 1936) -- valid
  Afranthidium lebanense (Mavromoustakis, 1955) -- valid
  Afranthidium matjesfonteinense (Mavromoustakis, 1934) -- valid
  Afranthidium mlanjense (Mavromoustakis, 1936) -- valid
  Afranthidium poecilodontum (Mavromoustakis, 1934) -- valid
  Afranthidium polyacanthum (Mavromoustakis, 1938) -- valid
  Afranthidium silverlocki (Mavromoustakis, 1936) -- valid
  Africanister Gomy, 2010 -- valid
  Africophilus congener Omer-Cooper, 1969 -- valid
  Africophilus differens Omer-Cooper, 1969 -- valid
  Africophilus jansei Omer-Cooper and Joseph Omer-Cooper, 1957 -- valid
  Africophilus josi Omer-Cooper, 1969 -- valid
  Afrogaster africana (Omodeo, 1955) -- valid
  Afrogaster cisatlantica (Omodeo, 1955) -- valid
  Agabinae Thomson, 1867 -- valid
  Agabini Thomson, 1867 -- valid
  Agabus (Acatodes) Thomson, 1859 -- valid
  Agabus (Gaurodytes) Thomson, 1859 -- valid
  Agabus biguttulus (Thomson, 1867) -- valid
  Agabus clypealis (Thomson, 1867) -- valid
  Agabus lapponicus (Thomson, 1867) -- valid
  Agabus pallidus Omer-Cooper, 1931 -- valid
  Agabus unguicularis (Thomson, 1867) -- valid
  Agabus zetterstedti Thomson, 1856 -- valid
  Agalissus Thomson, 1864 -- invalid
  Agastrodrilus Omodeo & Vaillaud, 1967 -- valid
  Agastrodrilus multivesiculatus Omodeo & Vaillaud, 1967 -- valid
  Agastrodrilus opisthogynus Omodeo & Vaillaud, 1967 -- valid
  Agaue hamiltoni Womersley, 1937 -- valid
  Agennopsis Thomson, 1857 -- invalid
  Agenodesmus Loomis, 1934 -- valid
  Agenodesmus reticulatus Loomis, 1934 -- valid
  Agniitae Thomson, 1864 -- invalid
  Agonopsis asperoculis Thompson, 1916 -- valid
  Agramma femorale Thomson, 1871 -- valid
  Agramma femorale femorale Thomson, 1871 -- valid
  Agroeca agrestis Ponomarev, 2007 -- valid
  Agromyza pictella Thomson, 1869 -- invalid
  Agromyza platyptera Thomson, 1869 -- invalid
  Agyrtidae C. G. Thomson, 1859 -- valid -- primitive carrion beetles
  Agyrtinae C. G. Thomson, 1859 -- valid
  Ailurops melanotis (Thomas, 1898) -- valid -- Talaud Bear Cuscus
  Aimophila botterii vulcanica W. Miller & Griscom, 1925 -- invalid
  Aimophila ruficauda connectens Griscom, 1930 -- invalid
  Aiptasia inula (Duchassaing de Fombressin and Michelotti, 1864) -- valid
  Aiptasia mimosa (Duchassaing de Fombressin and Michelotti, 1864) -- valid
  Aiptasia tagetes (Duchassaing de Fombressin and Michelotti, 1864) -- valid
  Airocaulon Loomis, 1964 -- valid
  Airocaulon humerosum Loomis, 1964 -- valid
  Akodon (Hypsimys) Thomas, 1918 -- valid
  Akodon (Microxus) Thomas, 1909 -- valid
  Akodon aerosus Thomas, 1913 -- valid -- Highland Grass Mouse, Yungas Akodont
  Akodon albiventer Thomas, 1897 -- valid -- White-bellied Akodont, White-bellied Grass Mouse
  Akodon bogotensis (Thomas, 1895) -- invalid -- Bogotá Akodont, Bogota Grass Mouse
  Akodon budini (Thomas, 1918) -- valid -- Budin's Akodont, Budin's Grass Mouse
  Akodon caenosus Thomas, 1918 -- valid
  Akodon dolores Thomas, 1916 -- valid -- Córdoba Akodont, Dolorous Grass Mouse
  Akodon fumeus Thomas, 1902 -- valid -- Smoky Akodont, Smoky Grass Mouse
  Akodon fuscinus Thomas, 1897 -- invalid
  Akodon illuteus (Thomas, 1925) -- invalid -- Gray Grass Mouse
  Akodon iniscatus Thomas, 1919 -- valid -- Intelligent Grass Mouse, Patagonian Akodont
  Akodon kempi (Thomas, 1917) -- invalid -- Kemp's Grass Mouse
  Akodon lanosus (Thomas, 1897) -- invalid -- Woolly Grass Mouse
  Akodon mimus (Thomas, 1901) -- valid -- Hocicudo-like Akodont, Thespian Grass Mouse
  Akodon mollis Thomas, 1894 -- valid -- Soft Grass Mouse, Soft-furred Akodont
  Akodon montensis Thomas, 1913 -- valid -- Montane Akodont
  Akodon neocenus Thomas, 1919 -- valid -- Neuquén Akodont, Neuquen Grass Mouse
  Akodon pervalens Thomas, 1925 -- valid -- Tarija Akodont
  Akodon puer Thomas, 1902 -- invalid -- Altiplano Grass Mouse
  Akodon serrensis Thomas, 1902 -- valid -- Serra do Mar Akodont, Serrado Mar Grass Mouse
  Akodon simulator Thomas, 1916 -- valid -- Gray-bellied Grass Mouse, White-throated Akodont
  Akodon spegazzinii Thomas, 1897 -- valid -- Spegazzini's Akodont, Spegazzini's Grass Mouse
  Akodon surdus Thomas, 1917 -- valid -- Silent Grass Mouse, Slate-bellied Akodont
  Akodon sylvanus Thomas, 1921 -- valid -- Forest Grass Mouse, Woodland Akodont
  Akodon toba Thomas, 1921 -- valid -- Chaco Grass Mouse, Toba Akodont
  Akodon torques (Thomas, 1917) -- valid -- Cloud Forest Akodont, Cloud Forest Grass Mouse
  Akodon varius Thomas, 1902 -- valid -- Variable Akodont, Variable Grass Mouse
  Alaobia Thomson, 1858 -- invalid
  Albertosphoera Caruso & Lombardo, 1983 -- valid
  Albertosphoera algerina Caruso & Lombardo, 1983 -- valid
  Albiplanaria Komarek, 1926 -- invalid
  Alcedo pusilla halmaherae (Salomonsen, 1934) -- valid
  Alcimobolus Loomis, 1936 -- valid
  Aldingia Thomson, 1916 -- valid
  Alectorobius hadiae (Klompen, Keirans and Durden, 1995) -- invalid
  Alectorobius multisetosus (Klompen, Keirans and Durden, 1995) -- invalid
  Alectorobius papuensis (Klompen, Keirans and Durden, 1995) -- invalid
  Alepocephalus umbriceps Jordan and Thompson, 1914 -- valid
  Alestes bouboni Roman, 1973 -- valid
  Alestes carmesinus Nichols and Griscom, 1917 -- valid
  Algansea alvarezi Romero, 1967 -- invalid
  Algidia nigriflava (Loman, 1902) -- valid
  Allactaga elater dzungariae Thomas, 1912 -- invalid
  Allactaga euphratica Thomas, 1881 -- valid -- Euphrates Jerboa, Montane Jerboa
  Allactaga firouzi Womochel, 1978 -- invalid -- Iranian Jerboa
  Allactaga hotsoni Thomas, 1920 -- valid -- Hotson's Five-toed Jerboa, Hotson's Jerboa
  Allactaga ruckbeili Thomas, 1914 -- invalid
  Allactaga williamsi Thomas, 1897 -- valid -- Williams's Jerboa
  Allobates chalcopis (Kaiser, Coloma and Gray, 1994) -- valid
  Allobates picachos (Ardila-Robayo, Acosta-Galvis and Coloma, 2000) -- valid
  Allobates wayuu (Acosta-Galvis, Cuentas and Coloma, 1999) -- valid
  Allochrocebus preussi insularis (Thomas, 1910) -- valid -- Bioko Preuss's Monkey
  Allocosa marindia Simó, Lise, Pompozzi & Laborda, 2017 -- valid
  Allocosa noctuabunda (Montgomery, 1904) -- valid
  Allocosa sublata (Montgomery, 1902) -- valid
  Allodia pistillata (Lundstrom, 1911) -- valid
  Allodioxys ammobius (Mavromoustakis, 1954) -- valid
  Allognosta flavimaculata Nagatomi & Tanaka, 1969 -- valid
  Allognosta shibuyai Nagatomi & Tanaka, 1969 -- valid
  Allolobophora immaculata Omodeo & Rota, 1989 -- valid
  Allolobophora lanzai Omodeo, 1961 -- valid
  Allolobophora marcuzzii Omodeo, 1952 -- valid
  Allolobophoridella xylophila (Omodeo & Martinucci, 1987) -- valid
  Allonemobius allardi (Alexander and Thomas, 1959) -- valid
  Allopauropus puritae Dominguez and Scheller, 1987 -- valid
  Allopharynx Shtrom, 1928 -- valid
  Allotoca zacapuensis Meyer, Radda and Domínguez, 2001 -- valid -- tiro de Zacapu, Zacapu allotoca
  Alluaudomyia needhami Thomsen, 1935 -- valid
  Alma machadoi Omodeo, 1973 -- valid
  Aloconota Thomson, 1858 -- valid
  Alopecosa atypica Ponomarev, 2008 -- invalid
  Alopecosa ayubaevorum Fomichev & Logunov, 2015 -- valid
  Alopecosa deserta Ponomarev, 2007 -- valid
  Alopecosa inderensis Ponomarev, 2007 -- valid
  Alopecosa kovblyuki Nadolny & Ponomarev, 2012 -- valid
  Alopecosa kulsaryensis Ponomarev, 2012 -- valid
  Alopecosa medvedevi Ponomarev, 2009 -- valid
  Alopecosa mikhailovi Omelko, Marusik & Koponen, 2013 -- valid
  Alopecosa sciophila Ponomarev, 2008 -- valid
  Alopecosa spasskyi Ponomarev, 2008 -- valid
  Alopecosa steppica Ponomarev, 2007 -- valid
  Alopecosa tanakai Omelko & Marusik, 2008 -- valid
  Alophoixus affinis (Hombron & Jacquinot, 1841) -- invalid
  Alosa vistonica Economidis and Sinis, 1986 -- valid
  Alouatta coibensis Thomas, 1902 -- invalid -- Coiba howler monkey
  Alouatta coibensis coibensis Thomas, 1902 -- invalid
  Alouatta inclamax Thomas, 1913 -- invalid
  Alouatta palliata coibensis Thomas, 1902 -- valid -- Coiba Island Howler
  Alouatta palliata quichua Thomas, 1913 -- invalid
  Alsophis cantherigerus pepei Schwartz and Thomas, 1970 -- invalid
  Alsophylax tokobajevi Yeriomtschenko and Szczerbak, 1984 -- valid
  Altella caspia Ponomarev, 2008 -- valid
  Althanus annamita Cooman, 1939 -- valid
  Alticola stracheyi (Thomas, 1880) -- invalid -- Strachey's mountain vole
  Alticola worthingtoni subluteus Thomas, 1914 -- invalid
  Alurnus elysianus Thomson, 1856 -- valid
  Alycus occidentalis Womersley, 1944 -- valid
  Alysson ratzeburgi Dahlbom, 1843 -- valid
  Alysson triangularis Krombein, 1985 -- valid
  Amakusanthura Nunomura, 1977 -- valid
  Amakusanthura longiantennata Nunomura, 1977 -- valid
  Amakusanthura toyamaensis Nunomura, 1992B -- valid
  Amarginops Nichols and Griscom, 1917 -- valid
  Amarginops platus Nichols and Griscom, 1917 -- valid
  Amarochara Thomson, 1858 -- valid
  Amaurospiza concolor relicta (Griscom, 1934) -- valid
  Amaurospiza relicta (Griscom, 1934) -- invalid
  Amaurospizopsis relictus Griscom, 1934 -- invalid
  Amazilia candida pacifica (Griscom, 1929) -- valid
  Amazilia edward margaritarum (Griscom, 1927) -- valid
  Ambassis natalensis Gilchrist and Thompson, 1908 -- valid -- slender glassy, slender glassy
  Amblyaspis angustula Thomson, 1859 -- valid
  Amblyaspis fuscicornis Thomson, 1859 -- valid
  Amblyaspis longiventris Thomson, 1859 -- valid
  Amblycerus ireriae Romero, Johnson and Kingsolver, 1996 -- valid
  Amblyglyphidodon orbicularis (Hombron and Jacquinot in Jacquinot and Guichenot, 1853) -- valid
  Amblyospiza albifrons montana Someren, 1921 -- valid
  Amblysomus Pomel, 1848 -- valid
  Amblysomus corriae Thomas, 1905 -- valid -- Fynbos Golden Mole
  Amblysomus corriae corriae Thomas, 1905 -- valid
  Amblysomus gunningi (Broom, 1908) -- invalid -- Gunning's golden mole
  Amblysomus hottentotus iris Thomas and Schwann, 1905 -- valid
  Amblysomus hottentotus longiceps (Broom, 1907) -- valid
  Amblysomus hottentotus pondoliae Thomas and Schwann, 1905 -- valid
  Amblysomus iris Thomas and Schwann, 1905 -- invalid -- Zulu golden mole
  Ambystoma tremblayi Comeau, 1943 -- invalid -- Tremblay's Salamander
  Ameerega altamazonica Twomey and Brown, 2008 -- valid
  Ameerega ignipedis Brown and Twomey, 2009 -- valid
  Ameerega pepperi Brown and Twomey, 2009 -- valid
  Ameerega yoshina Brown and Twomey, 2009 -- valid
  Ameira attenuata Thompson, 1893 -- invalid
  Ameira minor Thompson and Scott, 1903 -- valid
  Amerotyphlops tasymicris (Thomas, 1974) -- valid -- Grenada Worm Snake
  Amerus cuspidatus Avanzati, Salomone, Baratti & Bernini, 2003 -- valid
  Amischa Thomson, 1858 -- valid
  Ammatomus xerophilus Krombein, 1985 -- valid
  Ammobates biastoides globosus Mavromoustakis, 1954 -- valid
  Ammobates globosus Mavromoustakis, 1954 -- invalid
  Ammobates hellenicus Mavromoustakis, 1961 -- invalid
  Ammobates minutissimus Mavromoustakis, 1959 -- valid
  Ammobates persicus Mavromoustakis, 1968 -- valid
  Ammobates teheranicus Mavromoustakis, 1968 -- valid
  Ammobates verhoeffi Mavromoustakis, 1959 -- valid
  Ammodillus Thomas, 1904 -- valid
  Ammodorcas Thomas, 1891 -- valid
  Ammodorcas clarkei (Thomas, 1891) -- valid -- Clark's gazelle, dibatag, Dibatag
  Ammodorcas clarkii (Thomas, 1891) -- invalid -- Clark's gazelle
  Ammodramus maritimus juncicola (Griscom & Nichols, 1920) -- invalid
  Ammodramus maritimus junicola (Griscom & Nichols, 1920) -- invalid
  Ammomys Thomas, 1906 -- invalid
  Ammophila arvensis (Dahlbom, 1843) -- invalid
  Ammophila canescens (Dahlbom, 1843) -- invalid
  Ammophila cyanescens Dahlbom, 1845 -- invalid
  Ammophila heydeni Dahlbom, 1845 -- valid
  Ammophila heydeni heydeni Dahlbom, 1845 -- valid
  Ammophila incana (Dahlbom, 1843) -- invalid
  Ammophila melanaria Dahlbom, 1843 -- invalid
  Ammophila mutica Dahlbom, 1845 -- invalid
  Ammophila nigricans Dahlbom, 1843 -- valid
  Ammophila procera Dahlbom, 1843 -- valid
  Ammophila sabulosa cyanescens Dahlbom, 1845 -- invalid
  Ammophila tydei senilis (Dahlbom, 1843) -- invalid
  Ammophila urnaria Dahlbom, 1843 -- valid
  Ammophila wahlbergi Dahlbom, 1845 -- valid
  Ammopsen Krombein, 1959 -- valid
  Ammopsen masoni Krombein, 1959 -- valid
  Ammospiza maritima juncicola (Griscom & Nichols, 1920) -- invalid
  Ammothea brevicauda Loman, 1904 -- invalid
  Ammothea dohrni Thomson, 1884 -- invalid
  Ammothea fernandeziana Loman, 1920 -- invalid
  Ammothea hedgpethi (Utinomi, 1959) -- valid
  Ammothea magniceps Thomson, 1884 -- valid
  Ammothea parvula Loman, 1923 -- invalid
  Ammothella paradisiaca Loman, 1923 -- valid
  Amnicola retromargo F. G. Thompson, 1968 -- invalid -- Indented Duskysnail
  Amnicola rhombostoma F. G. Thompson, 1968 -- valid -- Squaremouth Amnicola
  Amolops hongkongensis (Pope and Romer, 1951) -- valid
  Ampelisca burkei J. L. Barnard and Thomas, 1989 -- valid
  Amphelictogon flexus Loomis, 1938 -- valid
  Amphelictogon propinquus Loomis, 1938 -- valid
  Amphelictogon rex Loomis, 1941 -- valid
  Amphelictogon strumosus Loomis, 1938 -- valid
  Amphionychini Thomson, 1860 -- invalid
  Amphiophiura bullata Thomson -- valid
  Amphiophiura bullata bullata Thomson -- valid
  Amphisbaena acangaoba Ribeiro, Gomides and Costa, 2020 -- valid -- Anfisbena-de-Capacete, Helmeted Worm Lizard
  Amphisbaena capensis Thominot, 1887 -- invalid
  Amphisbaena carlgansi Thomas and Hedges, 1998 -- valid -- Cuban Pink Amphisbaena, Cuban Pink Worm Lizard
  Amphisbaena cayemite Thomas, 2006 -- valid -- Cayemite Short-tailed Amphisbaena, Cayemite Short-tailed Worm Lizard
  Amphisbaena filiformis Ribeiro, Gomes, Rodrigues Da Silva, Cintra and Da Silva, 2016 -- valid
  Amphisbaena gonavensis hyporissor Thomas, 1965 -- invalid
  Amphisbaena gonavensis leberi Thomas, 1965 -- invalid
  Amphisbaena hyporissor Thomas, 1965 -- valid -- Barahona Amphisbaena, Barahona Worm Lizard
  Amphisbaena kiriri Ribeiro, Gomides and Costa, 2018 -- valid
  Amphisbaena leali Thomas, 2006 -- valid -- Pestel Amphisbaena, Pestel Worm Lizard
  Amphisbaena maranhensis Gomes and Maciel, 2012 -- valid
  Amphisbaena xera Thomas, 1966 -- valid -- Dry Worm Lizard, North American Worm Lizard, Puerto Rican Dryland Worm Lizard, Puerto Rican Xeric Worm Lizard
  Amphisbetia minima (Thompson, 1879) -- valid
  Amphithyris Thomson, 1918 -- valid
  Amphitornus coloradus (Thomas, 1873) -- valid
  Amphitornus coloradus coloradus (Thomas, 1873) -- valid
  Amphoroidea falcifer G. Thomson, 1879 -- valid
  Amplinus bitumidus (Loomis, 1969) -- valid
  Ampulex ceylonica Krombein, 1979 -- valid
  Ampulex guerini Dahlbom, 1843 -- invalid
  Anacaena Thomson, 1859 -- valid
  Anadenobolus consutus (Loomis, 1936) -- valid
  Anadenobolus laticollis (Loomis, 1934) -- valid
  Anadenobolus putealis (Loomis, 1971) -- valid
  Anadenobolus translocatus (Loomis, 1975) -- valid
  Anaea aidea floridalis F. Johnson and W. Comstock, 1941 -- invalid
  Anaea floridalis F. Johnson and W. Comstock, 1941 -- invalid -- Florida Leafwing
  Anaea troglodyta floridalis F. Johnson and W. Comstock, 1941 -- valid
  Analysson Krombein, 1985 -- valid
  Analysson rufescens Krombein, 1985 -- valid
  Anamaera Thomas and Barnard, 1985 -- valid
  Anamaera hixoni Thomas and J. L. Barnard, 1985 -- valid
  Anamixis cavatura Thomas, 1997 -- valid
  Anamixis moana Thomas, 1997 -- valid
  Anamixis vanga Thomas, 1997 -- valid
  Ananthura rigida Nunomura, 1976A -- valid
  Anaphothrips sudanensis Trybom, 1911 -- valid
  Anaplectes rubriceps jubaensis Someren, 1920 -- valid
  Anapleus davidneelae Gomy, 1995 -- valid
  Anapleus wenzeli Vomero, 1977 -- valid
  Anaspididae Thomson, 1893 -- valid
  Anastrepha aberrans Norrbom, 1993 -- valid
  Anastrepha bellicauda Norrbom, 1988 -- valid
  Anastrepha castilloi Norrbom, 1991 -- valid
  Anastrepha freidbergi Norrbom, 1993 -- valid
  Anastrepha grandicula Norrbom, 1991 -- valid
  Anastrepha hermosa Norrbom, 1988 -- valid
  Anatanais novaezealandiae (Thomson, 1879) -- valid
  Anauxesitae Thomson, 1864 -- invalid
  Anchicera Thomson, 1863 -- invalid
  Anchichoerops natalensis (Gilchrist and Thompson, 1909) -- valid
  Anchoa belizensis (Thomerson and Greenfield, 1975) -- valid -- anchoa beliceńa, Belize anchovy
  Anchotomys Thomas, 1918 -- invalid
  Ancotrema voyanum (Newcomb, 1865) -- valid -- hooded lancetooth
  Ancylocerina Thomson, 1864 -- valid
  Andinobates Twomey, Brown, Amézquita and Mejía-Vargas, 2011 -- valid
  Andinomys Thomas, 1902 -- valid
  Andinomys edax Thomas, 1902 -- valid -- Andean Mouse
  Andiorrhinus marcuzzii Omodeo, 1954 -- valid
  Andrena albofasciata Thomson, 1870 -- invalid
  Andrena bimaculata oligotricha Mavromoustakis, 1952 -- invalid
  Andrena curvungula Thomson, 1870 -- valid
  Andrena cypricola Mavromoustakis, 1952 -- valid
  Andrena hyacinthina Mavromoustakis, 1958 -- valid
  Andrena integra Thomson, 1870 -- invalid
  Andrena intermedia Thomson, 1870 -- valid
  Andrena kornosica Mavromoustakis, 1954 -- valid
  Andrena larnacensis Mavromoustakis, 1954 -- invalid
  Andrena limassolica Mavromoustakis, 1949 -- valid
  Andrena maidli Mavromoustakis, 1960 -- invalid
  Andrena morawitzi Thomson, 1872 -- invalid
  Andrena nasalis Thomson, 1870 -- invalid
  Andrena neocypriaca Mavromoustakis, 1956 -- valid
  Andrena nigrospina Thomson, 1872 -- invalid
  Andrena oligotricha Mavromoustakis, 1952 -- valid
  Andrena panurgimorpha Mavromoustakis, 1957 -- valid
  Andrena paramythensis Mavromoustakis, 1957 -- valid
  Andrena pareklisiae Mavromoustakis, 1957 -- valid
  Andrena perapedica Mavromoustakis, 1958 -- invalid
  Andrena polemediana Mavromoustakis, 1956 -- valid
  Andrena potentillae pendelica Mavromoustakis, 1958 -- invalid
  Andrena sibthorpi Mavromoustakis, 1952 -- valid
  Andrena thoracica kotschyi Mavromoustakis, 1953 -- invalid
  Andrena ungeri Mavromoustakis, 1952 -- valid
  Andrena violascens Thomson, 1870 -- invalid
  Andrenosoma igneum Bromley, 1929 -- valid
  Andricus gallaeurnaeformis (Boyer de Fonscolombe, 1832) -- valid
  Andricus solitarius (Boyer de Fonscolombe, 1832) -- valid
  Andycestus abyssmus (Thomas, 1953) -- valid
  Anilios insperatus Venchi, Wilson and Borsboom, 2015 -- valid -- Fassifern Blind Snake
  Anisocerini Thomson, 1860 -- valid
  Anisomys Thomas, 1904 -- valid
  Anisomys imitator Thomas, 1904 -- valid -- Uneven-toothed Rat
  Anisorhynchodemus megalophthalma (Loman, 1890) -- valid
  Anisorhynchodemus nematoides (Loman, 1890) -- valid
  Aniulus acuminatus Loomis, 1976 -- valid
  Aniulus fili Loomis, 1975 -- valid
  Aniulus vestigialis Loomis, 1959 -- valid
  Anodonta watersoni Tomlin, 1923 -- invalid
  Anokkostenostomum anops (Nuttycombe and Waters, 1938) -- invalid
  Anokkostenostomum pegephilum (Nuttycombe and Waters, 1938) -- invalid
  Anokkostenostomum pseudoacetabulum (Nuttycombe and Waters, 1935) -- invalid
  Anokkostenostomum tuberculosum (Nuttycombe and Waters, 1938) -- invalid
  Anokkostenostomum ventronephrium (Nuttycombe, 1932) -- invalid
  Anolis barahonae ininquinatus Cullom and Schwartz, 1980 -- valid
  Anolis barahonae mulitus Cullom and Schwartz, 1980 -- valid
  Anolis boulengerianus Thominot, 1887 -- valid -- Anolis tehuano, Tehuantepec Anole
  Anolis equestris potior Schwartz and Thomas, 1975 -- valid
  Anolis monticola quadrisartus Thomas and Schwartz, 1967 -- valid
  Anolis placidus Hedges and Thomas, 1989 -- valid -- Placid Anole
  Anolis rimarum Thomas and Schwartz, 1967 -- valid -- Marmelade Anole
  Anomalurus beecrofti citrinus Thomas, 1916 -- invalid
  Anomalurus cinereus Thomas, 1895 -- invalid
  Anomalurus fraseri nigrescens Thomas, 1904 -- invalid
  Anomalurus jacksoni perustus Thomas, 1916 -- invalid
  Anomalurus pusillus Thomas, 1887 -- valid -- Dwarf Scaly-tailed Squirrel, Little Flying Squirrel
  Anopedias obscurus Thomson, 1859 -- valid
  Anopedias tritomus Thomson, 1859 -- valid
  Anopheles acanthotorynus Komp, 1937 -- valid
  Anopheles anomalophyllus Komp, 1936 -- valid
  Anopheles bambusicolus Komp, 1937 -- valid
  Anopheles homunculus Komp, 1937 -- valid
  Anoplius amethystinus (Dahlbom) -- valid
  Anoplius atrox (Dahlbom) -- valid
  Anoplodactylus anarthrus Loman, 1908 -- valid
  Anoplodactylus brevicollis Loman, 1908 -- valid
  Anoplodactylus hokkaidoensis (Utinomi, 1954) -- valid
  Anoplodactylus stylops Loman, 1908 -- invalid
  Anoplodactylus versluysi Loman, 1908 -- valid
  Anopsilana acanthura (Notenboom, 1981) -- valid
  Anopsilana radicicola (Notenboom, 1981) -- valid
  Anopsobius giribeti (Edgecombe, 2004) -- valid
  Anopsobius wrighti Edgecombe, 2003 -- valid
  Anostomus intermedius Winterbottom, 1980 -- valid
  Anostomus spiloclistron Winterbottom, 1974 -- valid
  Anothyreus Dahlbom, 1845 -- invalid
  Anotomys Thomas, 1906 -- valid
  Anotomys leander Thomas, 1906 -- valid -- Ecuador fish-eating rat, Ecuadoran Ichthyomyine
  Anotylus Thomson, 1859 -- valid
  Anoxypristis White and Moy-Thomas, 1941 -- valid
  Antechinus adustus (Thomas, 1923) -- valid -- Rusty Antechinus, Tropical Antechinus
  Antechinus bellus (Thomas, 1904) -- valid -- Fawn Antechinus
  Antechinus godmani (Thomas, 1923) -- valid -- Atherton Antechinus
  Antechinus melanurus (Thomas, 1899) -- invalid
  Antennarius bigibbus Commerson in Lacepčde, 1798 -- invalid -- reticulated fishing frog
  Antennarius chironectes Commerson in Lacepčde, 1798 -- invalid
  Antennatus linearis Randall and Holcom, 2001 -- valid
  Anteris bilineata Thomson, 1859 -- valid
  Anteris scutellaris Thomson, 1859 -- valid
  Anthenea diazi Domantay, 1969 -- valid
  Anthidiellum bulawayense Mavromoustakis, 1937 -- valid
  Anthidiellum polyochrum Mavromoustakis, 1937 -- valid
  Anthidiellum solomonis (Krombein, 1951) -- valid
  Anthidium afghanistanicum Mavromoustakis, 1965 -- valid
  Anthidium akermani Mavromoustakis, 1937 -- valid
  Anthidium bechualandicum Mavromoustakis, 1939 -- valid
  Anthidium bischoffi Mavromoustakis, 1954 -- valid
  Anthidium christianseni Mavromoustakis, 1956 -- valid
  Anthidium deesense Mavromoustakis, 1947 -- valid
  Anthidium gussakovskiji Mavromoustakis, 1939 -- valid
  Anthidium kashmirense Mavromoustakis, 1937 -- valid
  Anthidium klapperichi Mavromoustakis, 1965 -- valid
  Anthidium kvakicum Mavromoustakis, 1939 -- valid
  Anthidium lebanense Mavromoustakis, 1955 -- invalid
  Anthidium longstaffi Mavromoustakis, 1948 -- valid
  Anthidium sikkimense Mavromoustakis, 1937 -- valid
  Anthidium soikai Mavromoustakis, 1968 -- valid
  Anthidium soni Mavromoustakis, 1937 -- valid
  Anthidium sudanicum Mavromoustakis, 1945 -- valid
  Anthomyia micropteryx Thomson, 1869 -- invalid
  Anthomyia ochripes Thomson, 1869 -- valid
  Anthomyia ochrogaster Thomson, 1869 -- invalid
  Anthomyia quadristigma Thomson, 1869 -- invalid
  Anthomyza concolor (Thomson, 1968) -- valid
  Anthophilus Dahlbom, 1844 -- invalid
  Anthophilus gibbosus Dahlbom, 1844 -- invalid
  Anthophora acervorum cypriaca Mavromoustakis, 1957 -- invalid
  Anthophora monacha tschelcarica Ponomareva, 1967 -- invalid
  Anthophora morawitzi Ponomareva, 1966 -- invalid
  Anthophora rudolphae Romankova, 2003 -- invalid
  Anthopleura pallida Duchassaing de Fombressin and Michelotti, 1864 -- valid
  Anthops Thomas, 1888 -- valid
  Anthops ornatus Thomas, 1888 -- valid -- Flower-faced Bat, Solomons Leaf-nosed Bat
  Anthorhina picata Thomas, 1903 -- invalid
  Anthoscopus minutus gigi Winterbottom, 1959 -- valid
  Anthreptes griseigularis birgitae Salomonsen, 1953 -- valid
  Anthus caffer blayneyi Someren, 1919 -- valid
  Anthus similis chyuluensis Someren, 1939 -- valid
  Anthus sokokensis Someren, 1921 -- valid -- Sokoke Pipit
  Anthus vaalensis clanceyi Winterbottom, 1963 -- valid
  Anthus vaalensis exasperatus Winterbottom, 1963 -- valid
  Antidorcas marsupialis hofmeyri Thomas, 1926 -- valid
  Antillophis andreai melopyrrha Thomas and Garrido, 1967 -- invalid
  Antillophis andreai peninsulae Schwartz and Thomas, 1960 -- invalid
  Antillotyphlops catapontus (Thomas, 1966) -- valid -- Erica's Worm Snake
  Antillotyphlops geotomus (Thomas, 1966) -- valid -- Montiserrat Worm Snake
  Antillotyphlops hypomethes (Hedges and Thomas, 1991) -- valid -- Puerto Rican Coastal Blindsnake
  Antillotyphlops monastus (Thomas, 1966) -- valid -- Montiserrat Worm Snake
  Antillotyphlops naugus (Thomas, 1966) -- valid -- Erica's Worm Snake
  Antinoe Thomson, 1864 -- invalid
  Antongilus Gomy, 1969 -- valid
  Antongilus terricola (Gomy, 1969) -- valid
  Antrodiaetidae Gertsch, in Comstock, 1940 -- valid -- foldingdoor spiders
  Antrorbis Hershler and F. G. Thompson, 1990 -- valid
  Antrorbis breweri Hershler and F. G. Thompson, 1990 -- valid -- Conical Siltsnail
  Antrostomus ridgwayi troglodytes (Griscom, 1930) -- valid
  Antrostomus rufus minimus (Griscom & Greenway, 1937) -- valid
  Anurida amorita Folsom, 1902 -- valid
  Anuropus sanguineus Nunomura, 1983 -- valid
  Aonyx capensis hindei (Thomas, 1905) -- invalid
  Aonyx capensis meneleki (Thomas, 1903) -- invalid
  Aotus miconax Thomas, 1927 -- valid -- Andean Night Monkey, Peruvian Night Monkey
  Apacheiulus Loomis, 1968 -- valid
  Apacheiulus guadelupensis Loomis, 1975 -- valid
  Apacheiulus pinalensis Loomis, 1968 -- valid
  Apachekolos weslacensis (Bromley, 1951) -- valid
  Apalis karamojae (Someren, 1921) -- valid -- Karamoja Apalis
  Apalis karamojae karamojae (Someren, 1921) -- valid
  Apalis melanocephala moschi Someren, 1931 -- valid
  Apalis nigriceps collaris Someren, 1915 -- valid
  Apalis rufogularis kigezi Keith, Twomey & Friedmann, 1967 -- valid
  Apaloderma narina littorale Someren, 1931 -- valid
  Apanteles metacarpalis (Thomson, 1895) -- valid
  Apanthura fusei Nunomura, 1993B -- valid
  Apanthura shikokuensis Nunomura, 1993B -- valid
  Apanthura trioculata Nunomura, 1993B -- valid
  Aparasphenodon bokermanni Pombal, 1993 -- valid
  Apathus lissonurus Thomson, 1872 -- invalid
  Aphanogmus Thomson, 1858 -- valid
  Aphanogmus abdominalis (Thomson, 1858) -- valid
  Aphanogmus clavicornis Thomson, 1858 -- valid
  Aphanogmus fasciipennis Thomson, 1858 -- valid
  Aphanogmus fumipennis Thomson, 1858 -- valid
  Aphanogmus tenuicornis Thomson, 1858 -- valid
  Aphaostracon F. G. Thompson, 1968 -- valid
  Aphaostracon asthenes F. G. Thompson, 1968 -- valid -- Blue Spring Hydrobe
  Aphaostracon chalarogyrus F. G. Thompson, 1968 -- valid -- Freemouth Hydrobe
  Aphaostracon hypohyalinum F. G. Thompson, 1968 -- valid -- Suwanee Hydrobe
  Aphaostracon pachynotum F. G. Thompson, 1968 -- valid -- Thick-shell Hydrobe, Thick-shelled Hydrobe
  Aphaostracon pycnum F. G. Thompson, 1968 -- invalid -- dense hydrobe
  Aphaostracon pycnus F. G. Thompson, 1968 -- valid -- Dense Hydrobe
  Aphaostracon rhadinum F. G. Thompson, 1968 -- valid -- Slough Hydrobe
  Aphaostracon theiocrenetum F. G. Thompson, 1968 -- valid -- Clifton Spring Hydrobe
  Aphaostracon xynoelictum F. G. Thompson, 1968 -- valid -- Fenney Spring Hydrobe
  Aphelampyx rufescens (J. Thomson, 1858) -- valid
  Aphelidesmus taurinus Loomis, 1964 -- valid
  Aphelocoma sumichrasti remota Griscom, 1934 -- invalid
  Aphelocoma woodhouseii remota Griscom, 1934 -- valid
  Aphid aurantii Fonscolombe, 1841 -- invalid
  Aphis middletonii Thomas, 1879 -- valid -- erigeron-root aphid
  Aphis nerii Fonscolombe, 1841 -- valid
  Aphyocharax colifax Taphorn and Thomerson, 1991 -- valid
  Aplonis opaca anga Momiyama, 1922 -- valid
  Aplonis opaca guami Momiyama, 1922 -- valid -- Micronesian starling
  Aplonis opaca kurodai Momiyama, 1920 -- valid
  Apocryptodon punctatus Tomiyama, 1934 -- valid
  Apodemia mormo langei J. A. Comstock, 1939 -- valid -- Lange's metalmark Butterfly
  Apodemus agrarius coreae Thomas, 1908 -- invalid
  Apodemus agrarius pallidior Thomas, 1908 -- invalid
  Apodemus fergussoni Thomas, 1911 -- invalid
  Apodemus geisha sagax Thomas, 1908 -- invalid
  Apodemus geisha yakui Thomas, 1906 -- invalid
  Apodemus gurkha Thomas, 1924 -- valid -- Nepalese Field Mouse
  Apodemus ilex Thomas, 1922 -- invalid
  Apodemus latronum Thomas, 1911 -- valid -- Large-eared Field Mouse
  Apodemus peninsulae (Thomas, 1907) -- valid -- Korean Field Mouse
  Apodemus semotus Thomas, 1908 -- valid -- Taiwan Field Mouse
  Apodemus speciosus orestes Thomas, 1911 -- invalid
  Apodemus witherbyi (Thomas, 1902) -- valid -- Steppe Field Mouse
  Apogon aroubiensis Hombron and Jacquinot in Jacquinot and Guichenot, 1853 -- valid
  Apogon natalensis Gilchrist and Thompson, 1908 -- invalid
  Apogon nigromaculatus Hombron and Jacquinot in Jacquinot and Guichenot, 1853 -- invalid
  Apogon sialis (Jordan and Thompson, 1914) -- valid
  Apolochus pillaii (J. L. Barnard and Thomas, 1983) -- valid
  Apomecynini Thomson, 1860 -- valid
  Aporrectodea gabriellae (Omodeo, 1984) -- valid
  Aporrectodea gabriellae gabriellae (Omodeo, 1984) -- valid
  Aporrectodea gabriellae gallurae (Omodeo, 1984) -- valid
  Aporrectodea sineporis Omodeo, 1952 -- valid
  Apostolepis cearensis Gomes, 1915 -- valid -- Gomes' Burrowing Snake
  Apostolepis longicaudata Gomes, 1921 -- valid -- Longhead Burrowing Snake
  Apozomus termitarium Cokendolpher, Sissom and Reddell, 2010 -- valid
  Aprion macrophthalmus (Müller and Troschel in Schomburgk, 1848) -- invalid -- voraz, voraz
  Aprosopitae Thomson, 1864 -- invalid
  Apseudes multilyratus Roman, 1980 -- valid
  Apterothrips secticornis (Trybom, 1896) -- valid
  Apterouridae Loomis, 1966 -- valid
  Apterourus Loomis, 1966 -- valid
  Apterourus horizontalis Loomis, 1966 -- valid
  Aptinothrips stylifer Trybom, 1894 -- valid
  Arachnothera flammifera randi Salomonsen, 1953 -- valid
  Araiophos eastropas Ahlstrom and Moser, 1969 -- valid
  Aramides cajanea pacificus W. Miller & Griscom, 1921 -- valid
  Archamia ataenia Randall and Satapoomin, 1999 -- valid
  Archaster bifrons Wyville Thomson, 1873 -- invalid
  Archaster excavatus Wyville Thomson, 1876 -- invalid
  Archaster vexillifer Wyville Thomson, 1873 -- invalid
  Archecharax Thompson, 1980 -- valid
  Archisotoma laguna (Folsom, 1937) -- valid
  Archlagocheirus funestus (Thomson, 1865) -- invalid
  Arcoscalpellum angulare (Nilssom-cantell, 1930) -- valid
  Arctocebus ruficeps Thomas, 1913 -- invalid
  Arctoconopa forcipata Lundstrom, 1915 -- valid
  Arctoconopa forcipata forcipata Lundstrom, 1915 -- valid
  Arctodiamesa appendiculata (Lundstrom, 1915) -- valid
  Arctonyx annaeus Thomas, 1921 -- invalid
  Arctonyx collaris dictator Thomas, 1910 -- invalid
  Arctonyx dictator Thomas, 1910 -- invalid
  Arctonyx leucolaemus orestes Thomas, 1911 -- invalid
  Arctonyx obscurus incultus Thomas, 1922 -- invalid
  Arctopora Thomson, 1891 -- valid
  Arctosa pseudoleopardus Ponomarev, 2007 -- valid
  Arctosa ravida Ponomarev, 2007 -- valid
  Ardeola speciosa continentalis Salomonsen, 1933 -- valid
  Ardops nichollsi (Thomas, 1891) -- valid -- tree bat, Tree Bat
  Ardops nichollsi montserratensis (Thomas, 1894) -- valid
  Ardops nichollsi nichollsi (Thomas, 1891) -- valid
  Arethaea gracilipes (Thomas, 1870) -- valid
  Arethaea gracilipes gracilipes (Thomas, 1870) -- valid
  Argas beklemischevi Pospelova-Shtrom, Vasil'yeva and Semashko, 1963 -- valid
  Argiope dang Jäger & Praxaysombath, 2009 -- valid
  Argyrosomus nibe (Jordan and Thompson, 1911) -- invalid -- black chinese croaker, black Chinese croaker, blackmouth croaker, blackmouth croaker
  Arhopalus mexicanus (Thomson, 1860) -- invalid
  Arinolus latus Loomis, 1953 -- valid
  Aristelliger hechti Schwartz and Crombie, 1975 -- valid
  Aristeus pallidicauda Komai, 1993 -- valid
  Arizonacritus Gomy and Warner, 2013 -- valid
  Arizonacritus talayesvai Gomy and Warner, 2013 -- valid
  Armadilloniscus albus Nunomura, 1984 -- valid
  Armadilloniscus amakusaensis Nunomura, 1984 -- valid
  Armadilloniscus japonicus Nunomura, 1984 -- valid
  Armadilloniscus notojimensis (Nunomura, 1990) -- valid
  Armatoplana affinis (Palombi, 1940) -- valid
  Armatoplana robusta (Palombi, 1928) -- valid
  Armatoplana tenuis (Palombi, 1936) -- valid
  Armatoplana vesiculata (Palombi, 1940) -- valid
  Arnoglossus micrommatus Amaoka, Arai & Gomon, 1997 -- valid
  Arostrilepis Mas-Coma & Tenora, 1997 -- valid
  Arpactes lunatus (Dahlbom, 1832) -- invalid
  Arpactus lunatus (Dahlbom, 1832) -- invalid
  Arphia pseudonietana (Thomas, 1870) -- valid
  Arrhopalites benitus (Folsom, 1896) -- valid
  Artemia bivalens partenogenetica Artom, 1912 -- invalid
  Artemia guildingi Thompson, 1834 -- invalid
  Artemia micropirencia Artom, 1921 -- invalid
  Artemia salina bivalens Artom, 1912 -- invalid
  Artemia salina partenogenetica Artom, 1906 -- invalid
  Artemia salina sessuata Artom, 1912 -- invalid
  Artemia salina univalens Artom, 1912 -- invalid
  Artemia sessuata Artom, 1906 -- invalid
  Arthroceras fulvicorne Nagatomi, 1966 -- valid
  Arthroceras nigricapite Nagatomi, 1966 -- invalid
  Arthroceras subsolanum Nagatomi, 1966 -- invalid
  Artibeus glaucus Thomas, 1893 -- valid -- silver fruit-eating bat, Silvery Fruit-eating Bat
  Artibeus hartii Thomas, 1892 -- invalid -- Hart's fruit-eating bat, velvety fruit-eating bat
  Artibeus rosenbergi (Thomas, 1897) -- valid
  Artibeus watsoni Thomas, 1901 -- valid -- Thomas's Fruit-eating Bat
  Arubolana parvioculata Notenboom, 1984 -- valid
  Arvicanthis ansorgei Thomas, 1910 -- valid -- Sudanian Arvicanthis
  Arvicanthis barbarus nigeriae Thomas, 1912 -- invalid
  Arvicanthis dorsalis calidior Thomas and Wroughton, 1908 -- invalid
  Arvicanthis mordax Thomas, 1911 -- invalid
  Arvicanthis oweni Thomas, 1911 -- invalid
  Arvicanthis pulchellus ardens Thomas, 1910 -- invalid
  Arvicanthis pumilio cinereus Thomas and Schwann, 1904 -- invalid
  Arvicanthis setosus Thomas, 1905 -- invalid
  Arvicanthis striatus venustus Thomas, 1911 -- invalid
  Arvicanthis testicularis solatus Thomas, 1925 -- invalid
  Arvicola amphibius brigantium Thomas, 1928 -- invalid
  Arvicola severtzovi Tichomirov and Kortchagin, 1889 -- invalid
  Arvicola stracheyi Thomas, 1880 -- invalid
  Arvicola terrestris scythicus Thomas, 1914 -- invalid
  Asagena semideserta (Ponomarev, 2005) -- valid
  Ascorhynchus levissimus Loman, 1908 -- valid
  Ascorhynchus tuberosus Utinomi, 1962 -- valid
  Aseminae Thomson, 1860 -- invalid
  Asemini Thomson, 1860 -- valid
  Asiaster Cooman, 1948 -- valid
  Asiaster calcator Cooman, 1948 -- valid
  Asiaster pilisternus Cooman, 1948 -- valid
  Asilus blantoni Bromley, 1940 -- invalid
  Asilus fattigi Bromley, 1940 -- invalid
  Asilus floridensis Bromley, 1940 -- invalid
  Asilus frosti Bromley, 1950 -- invalid
  Asilus hubbelli Bromley, 1950 -- invalid
  Asilus knulli Bromley, 1940 -- invalid
  Asilus schuhi Bromley, 1940 -- invalid
  Asiocoris Tomokuni and Cai, 2002 -- valid
  Asiocoris pudicus Tomokuni and Cai, 2002 -- valid
  Asolenus julietteae Gomy, 2014 -- valid
  Aspathines aeneus (Thomson, 1860) -- valid
  Aspathines aeneus aeneus (Thomson, 1860) -- valid
  Aspidimorpha togata Thomson, 1858 -- valid
  Aspidiotus rapax Comstock, 1881 -- invalid
  Astata intermedia Dahlbom, 1843 -- invalid
  Astata pinguis (Dahlbom, 1832) -- invalid
  Astata stigma major Grönblom, 1946 -- invalid
  Astropecten vexillifer (Wyville Thomson, 1873) -- invalid
  Ataenius nitidulus Nomura, 1943 -- invalid
  Atalotriccus pilaris wilcoxi Griscom, 1924 -- valid
  Atelerix Pomel, 1848 -- valid
  Atelerix algirus vagans Thomas, 1901 -- valid
  Atelerix frontalis angolae (Thomas, 1918) -- valid
  Ateloglossa erythrocera (Thomson, 1869) -- valid
  Atelomycterus fasciatus Compagno and Stevens, 1993 -- valid
  Atelopus ardila Coloma, Duellman, Almendáriz, Ron, Terán-Valdez and Guayasamin, 2010 -- valid
  Atelopus gigas Coloma, Duellman, Almendáriz, Ron, Terán-Valdez and Guayasamin, 2010 -- valid
  Atelopus guanujo Coloma, 2002 -- valid
  Atelopus nanay Coloma, 2002 -- valid
  Atelopus onorei Coloma, Lötters, Duellman and Miranda-Leiva, 2007 -- valid
  Atelopus orcesi Coloma, Duellman, Almendáriz, Ron, Terán-Valdez and Guayasamin, 2010 -- valid
  Atelopus pastuso Coloma, Duellman, Almendáriz, Ron, Terán-Valdez and Guayasamin, 2010 -- valid
  Atelopus petersi Coloma, Lötters, Duellman and Miranda-Leiva, 2007 -- valid
  Atelopus podocarpus Coloma, Duellman, Almendáriz, Ron, Terán-Valdez and Guayasamin, 2010 -- valid
  Ateuchus rodriguezi (Preudhomme de Borre, 1886) -- valid
  Atherina stipes Müller and Troschel in Schomburgk, 1848 -- invalid
  Atherinomorus stipes (Müller and Troschel in Schomburgk, 1848) -- valid -- cabezote, hardhead silverside, tinícalo cabezón
  Atheta Thomson, 1858 -- valid
  Atheta dadopora Thomson, 1867 -- valid
  Atheta nigricornis (Thomson, 1852) -- valid
  Atheta pallidicornis (Thomson, 1856) -- valid
  Atholus C. Thomson, 1859 -- valid
  Atholus hucheti Gomy, 2004 -- valid
  Atholus yelamosi Gomy, 2011 -- valid
  Atilax paludinosus mitis (Thomas, 1903) -- valid
  Atilax paludinosus mordax (Thomas, 1912) -- valid
  Atilax paludinosus nigerianus (Thomas, 1912) -- valid
  Atilax paludinosus rubellus (Thomas and Wroughton, 1908) -- valid
  Atimuropsis Thomson, 1868 -- invalid
  Atlantopandalus Komai, 1999 -- valid
  Atlapetes albinucha coloratus Griscom, 1924 -- valid
  Atlapetes albinucha fuscipygius Dwight & Griscom, 1921 -- valid
  Atlapetes albinucha griseipectus Dwight & Griscom, 1921 -- valid
  Atlapetes albinucha parvirostris Dwight & Griscom, 1921 -- valid
  Atomosia mucidoides Bromley, 1951 -- valid
  Atopostigmus Krombein, 1973 -- invalid
  Atribalus wolfaardti Gomy and Perreau, 2001 -- valid
  Atrioplanaria aquaebellae Bromley, 1983 -- invalid
  Atrobucca nibe (Jordan and Thompson, 1911) -- valid -- black Chinese croaker, blackmouth croaker
  Atthis ellioti selasphoroides Griscom, 1932 -- valid
  Augochloropsis bari (Dominique, 1898) -- valid
  Augustaea Szombathy, 1915 -- valid
  Augustaea formicaria Szombathy, 1915 -- valid
  Aulacidea tragopogonis (Thomson, 1877) -- valid
  Aulacogenia dilatata Cai and Tomokuni in Zhao et al., 2005 -- valid
  Aulacophilinus Lomholdt, 1980 -- valid
  Aulacophilinus rennellensis Lomholdt, 1980 -- valid
  Aulacus amazonicus (Roman, 1917) -- valid
  Aulacus arcticus (Dahlbom, 1837) -- invalid
  Auliscomys pictus (Thomas, 1884) -- valid -- Colorful Pericote, Painted Big-eared Mouse
  Auliscomys sublimis (Thomas, 1900) -- valid -- Andean Big-eared Mouse, Lofty Pericote
  Aulocara elliotti (Thomas, 1870) -- valid -- bigheaded grasshopper, criquet megalocéphale
  Aulopus curtirostris Thomson, 1967 -- valid
  Auracricus clypeatus (Loomis, 1938) -- valid
  Australanius Gomy, 2009 -- valid
  Australanius delicatulus Gomy, 2009 -- valid
  Australanius umbilicatus Gomy, 2009 -- valid
  Australanius verrucosus Gomy, 2009 -- valid
  Australentulus australiensis (Womersley, 1932) -- valid
  Australentulus occidentalis (Womersley, 1932) -- valid
  Australentulus tillyardi (Womersley, 1932) -- valid
  Australentulus westraliensis (Womersley, 1932) -- valid
  Austridotea lacustris (Thomson, 1879) -- valid
  Austrotyla montani Loomis & Schmitt, 1971 -- valid
  Austrotyla montivaga (Loomis, 1943) -- valid
  Austrotyla specus (Loomis, 1939) -- valid
  Autaliini Thomson, 1859 -- valid
  Avahi betsileo Andriantompohavana, Lei, Zaonarivelo, Engberg, Nalanirina, McGuire, Shore et al., 2007 -- valid -- Betsileo Woolly Lemur
  Avahi mooreorum Lei, Engberg, Andriantompohavana, McGuire, Mittermeier, Zaonarivelo, Brenneman and Louis Jr., 2008 -- valid -- Masoala Woolly Lemur
  Aztecolus productus Loomis, 1968 -- valid
  Babina Thompson, 1912 -- valid
  Bacanius (Bacanellus) Gomy, 2010 -- valid
  Bacanius (Mullerister) Cooman, 1936 -- invalid
  Bacanius (Tuberister) Gomy, 1980 -- valid
  Bacanius (Vadonus) Gomy, 1969 -- valid
  Bacanius albiusi Gomy, 1978 -- valid
  Bacanius andrei Gomy, 2001 -- valid
  Bacanius baloghi Gomy, 1977 -- valid
  Bacanius borbonicus Gomy, 1970 -- valid
  Bacanius bougainvillei Gomy, 1976 -- valid
  Bacanius cavisternus Gomy, 1980 -- valid
  Bacanius charriei Gomy, 1978 -- valid
  Bacanius collettei Gomy, 1999 -- valid
  Bacanius comorensis Gomy, 1978 -- valid
  Bacanius cooki Gomy, 1976 -- valid
  Bacanius creolus Gomy, 1970 -- valid
  Bacanius dentrecasteauxi Gomy, 1976 -- valid
  Bacanius franzi Gomy, 1970 -- valid
  Bacanius gourvesi Gomy, 1981 -- valid
  Bacanius granulosus Gomy, 1980 -- valid
  Bacanius greensladei Gomy, 1988 -- valid
  Bacanius insularis Gomy, 1978 -- valid
  Bacanius kapleri Gomy, 1999 -- valid
  Bacanius kaszabi Gomy, 1977 -- valid
  Bacanius kurbatovi Gomy and Tishechkin, 1993 -- valid
  Bacanius laperousei Gomy, 1976 -- valid
  Bacanius lawrencei Gomy, 1992 -- valid
  Bacanius mameti Gomy, 1970 -- valid
  Bacanius martensi Gomy, 1992 -- valid
  Bacanius nobleti Gomy, 1981 -- valid
  Bacanius papulatus Cooman, 1933 -- valid
  Bacanius peckorum Gomy, 1992 -- valid
  Bacanius perreti Gomy, 1981 -- valid
  Bacanius peyrierasi Gomy, 1969 -- valid
  Bacanius riftensis Gomy, 1981 -- valid
  Bacanius schmidti Gomy, 1969 -- valid
  Bacanius therondi Gomy, 1969 -- valid
  Bacanius tonkinensis Cooman, 1936 -- invalid
  Bacanius vadoni Gomy, 1969 -- valid
  Bacanius wauensis Gomy, 1981 -- valid
  Baconia (Binhister) Cooman, 1934 -- invalid
  Baconia barbarus (Cooman, 1934) -- valid
  Baconia chujoi (Cooman, 1941) -- valid
  Bahalana cardiopus Notenboom, 1981 -- valid
  Baiomys taylori (Thomas, 1887) -- valid -- Northern Pygmy Mouse, Ratón-pigmeo norteńo
  Baiomys taylori ater Blossom and Burt, 1942 -- invalid
  Balantiopteryx infusca (Thomas, 1897) -- valid -- Ecuadorian sac-winged bat, Ecuadorian Sac-winged Bat
  Balantiopteryx io Thomas, 1904 -- valid -- Thomas's sac-winged bat, Thomas's Sac-winged Bat
  Balanus reticulatus Utinomi, 1967 -- valid
  Balionycteris maculata (Thomas, 1893) -- valid -- Bornean Spotted-winged Fruit Bat, Spotted-winged Fruit Bat
  Balionycteris maculata maculata (Thomas, 1893) -- invalid
  Banasa rolstoni Thomas and Yonke, 1981 -- valid
  Banasa tumidifrons Thomas and Yonke, 1981 -- valid
  Bandicota jabouillei Thomas, 1927 -- invalid
  Bandicota mordax Thomas, 1916 -- invalid
  Bandicota savilei Thomas, 1916 -- valid -- Savile's Bandicoot Rat
  Bandicota savilei curtata Thomas, 1929 -- invalid
  Barbus aloyi Roman, 1970 -- valid
  Barbus annectens Gilchrist and Thompson, 1917 -- valid
  Barbus atromaculatus Nichols and Griscom, 1917 -- valid
  Barbus candens Nichols and Griscom, 1917 -- valid
  Barbus guirali Thominot, 1886 -- valid
  Barbus martorelli Roman, 1970 -- valid
  Barbus sylvaticus Loiselle and Welcomme, 1971 -- valid
  Barilius lairokensis Arunkumar and Tombi Singh, 2000 -- valid
  Bartholomea Duchassaing de Fombressin and Michelotti, 1864 -- valid
  Barydesmus gracilipes (Loomis, 1964) -- valid
  Barytettix humphreysi (Thomas, 1875) -- valid
  Barytettix humphreysi humphreysi (Thomas, 1875) -- valid
  Basileuterus melanogenys bensoni Griscom, 1927 -- valid
  Basileuterus tristriatus chitrensis Griscom, 1927 -- invalid
  Basilia boardmani Rozeboom, 1934 -- valid
  Basilinna leucotis borealis (Griscom, 1929) -- invalid
  Bassaricyon alleni Thomas, 1880 -- valid -- Allen's Olingo, Eastern Lowland Olingo
  Bassaricyon medius Thomas, 1909 -- valid -- Western Lowland Olingo
  Bassaricyon medius medius Thomas, 1909 -- valid
  Bassaricyon medius siccatus Thomas, 1927 -- invalid
  Bassariscus sumichrasti notinus Thomas, 1903 -- valid
  Bathanthidium Mavromoustakis, 1953 -- valid
  Bathybiaster vexillifer (Wyville Thomson, 1873) -- valid
  Bathyergus janetta Thomas and Schwann, 1904 -- valid -- Namaqua Dune Mole-rat
  Bathypallenopsis plumipes (Loman, 1908) -- invalid
  Bathypallenopsis tydemani (Loman, 1908) -- valid
  Bathypallenopsis tydemani tydemani (Loman, 1908) -- valid
  Bathyplotes hancocki Domantay, 1961 -- invalid
  Bathyplotes maccullochae Domantay, 1961 -- invalid
  Bathyplotes velerones Domantay, 1961 -- invalid
  Bathyporeia Lindstrom, 1855 -- valid
  Bathyporeia pilosa Lindstrom, 1855 -- valid
  Bathyzetes setigera (Loman, 1908) -- valid
  Bathyzetes virago (Loman, 1908) -- valid
  Batomys Thomas, 1895 -- valid -- Hairy-tailed Rats
  Batomys granti Thomas, 1895 -- valid -- Luzon Batomys
  Batyle Thomson, 1864 -- valid
  Bdellocephala schneideri Komarek, 1930 -- valid
  Bdellozonium Cook & Loomis, 1928 -- valid
  Bdellozonium cerviculatum Cook & Loomis, 1928 -- valid
  Bdeogale crassicauda tenuis Thomas and Wroughton, 1908 -- valid
  Bdeogale jacksoni (Thomas, 1894) -- valid -- Jackson's Mongoose
  Beamys Thomas, 1909 -- valid -- Long-Tailed Pouched Rats
  Beamys hindei Thomas, 1909 -- valid -- Hinde's Pouched Rat, Long-tailed Pouched Rat
  Beatadesmus Loomis, 1934 -- valid
  Beatadesmus utowani Loomis, 1934 -- valid
  Beauchampius sondaica (Loman, 1890) -- valid
  Belba servadeii Lombardini, 1963 -- valid
  Belisana akebona (Komatsu, 1961) -- valid
  Belomicroides rostratus Krombein, 1982 -- invalid
  Belomys Thomas, 1908 -- valid
  Belomys pearsonii trichotis Thomas, 1908 -- valid
  Bembecinus bishoppi Krombein and Willink, 1951 -- valid
  Bembecinus broomfieldi Krombein, 1984 -- valid
  Bembecinus floridanus Krombein and Willink, 1951 -- valid
  Bembecinus knighti Krombein, 1984 -- valid
  Bembecinus krameri Krombein, 1984 -- valid
  Bembecinus luteolus Krombein, 1984 -- valid
  Bembecinus nanus floridanus Krombein and Willink, 1951 -- invalid
  Bembecinus tridens caesius (Compte Sart, 1959) -- valid
  Bembecinus wheeleri Krombein and Willink, 1951 -- valid
  Bembex affinis Dahlbom, 1844 -- invalid
  Bembex basalis Dahlbom, 1845 -- invalid
  Bembex dissecta Dahlbom, 1845 -- invalid
  Bembex grisescens Dahlbom, 1845 -- invalid
  Bembex inscripta Dahlbom, 1844 -- invalid
  Bembex insularis (Dahlbom, 1844) -- invalid
  Bembex megerlei Dahlbom, 1845 -- invalid
  Bembex mildei Dahlbom, 1845 -- invalid
  Bembex natalis Dahlbom, 1845 -- invalid
  Bembex neglecta Dahlbom, 1845 -- invalid
  Bembex ocellata Dahlbom, 1845 -- invalid
  Bembex olivata Dahlbom, 1845 -- invalid
  Bembex soror Dahlbom, 1845 -- invalid
  Bembex sulphurescens Dahlbom, 1844 -- invalid
  Bembex trepanda Dahlbom, 1844 -- invalid
  Bembex tricolor Dahlbom, 1844 -- invalid
  Bembex undata Dahlbom, 1845 -- invalid
  Bembex ventralis Dahlbom, 1844 -- invalid
  Bembix affinis Dahlbom, 1844 -- valid
  Bembix antoni Krombein and van der Vecht, 1987 -- valid
  Bembix grisescens Dahlbom, 1845 -- valid
  Bembix inscripta Dahlbom, 1844 -- valid
  Bembix intermedia Dahlbom, 1845 -- invalid
  Bembix megerlei Dahlbom, 1845 -- valid
  Bembix mildei Dahlbom, 1845 -- valid
  Bembix notata Dahlbom, 1845 -- invalid
  Bembix oculata basalis Dahlbom, 1845 -- valid
  Bembix oculata soror Dahlbom, 1845 -- valid
  Bembix olivata Dahlbom, 1845 -- valid
  Bembix pectoralis Dahlbom, 1845 -- invalid
  Bembix sulphurescens Dahlbom, 1844 -- valid
  Bembix trepanda Dahlbom, 1844 -- invalid
  Bembix tricolor Dahlbom, 1844 -- valid
  Bembix turca Dahlbom, 1845 -- valid
  Bembix undulata Dahlbom, 1845 -- invalid
  Bembrops nelsoni Thompson and Suttkus, 2002 -- valid
  Bembrops ocellatus Thompson and Suttkus, 1998 -- valid
  Bembrops quadrisella Thompson and Suttkus, 1998 -- valid
  Bembrops raneyi Thompson and Suttkus, 1998 -- valid
  Bengalla Gray & Thompson, 2001 -- valid
  Bengalla bertmaini Gray & Thompson, 2001 -- valid
  Benhamiona balantina (Omodeo, 1958) -- valid
  Benhamiona capilliseta (Omodeo, 1963) -- valid
  Benhamiona guineana (Omodeo, 1958) -- valid
  Benthonellania colombiana (Romer and Moore, 1988) -- valid
  Berberentulus capensis (Womersley, 1931) -- valid
  Berchmansus validus (Erichson in Schomburgk, 1848) -- invalid
  Bergrotheus flaveola (Fairmaire in Thomson, 1858) -- invalid
  Bergrotheus flaveolus (Fairmaire in Thomson, 1858) -- valid
  Beris alamaculata Yang & Nagatomi, 1992 -- valid
  Beris angustifacies Nagatomi & Tanaka, 1972 -- valid
  Beris basiflava Yang & Nagatomi, 1992 -- valid
  Beris crassitarsis Nagatomi & Tanaka, 1972 -- valid
  Beris latifacies Nagatomi & Tanaka, 1972 -- invalid
  Beris nebulosa Nagatomi & Tanaka, 1972 -- valid
  Berlandina caspica Ponomarev, 1979 -- valid
  Berlandina charitonovi Ponomarev, 1979 -- valid
  Berlandina ilika Fomichev & Marusik, 2019 -- valid
  Berlandina koponeni Marusik, Fomichev & Omelko, 2014 -- valid
  Berlandina litvinovi Fomichev & Marusik, 2017 -- valid
  Berlandina mishenini Marusik, Fomichev & Omelko, 2014 -- valid
  Berlandina nabozhenkoi Ponomarev & Tsvetkov, 2006 -- valid
  Berlandina nakonechnyi Marusik, Fomichev & Omelko, 2014 -- valid
  Berlandina nenilini Ponomarev & Tsvetkov, 2006 -- valid
  Berlandina ovtsharenkoi Marusik, Fomichev & Omelko, 2014 -- valid
  Berlandina saraevi Ponomarev, 2008 -- valid
  Berlandina spasskyi Ponomarev, 1979 -- valid
  Berlandina yakovlevi Marusik, Fomichev & Omelko, 2014 -- valid
  Berlesedesmus Loomis, 1975 -- valid
  Berlesedesmus flagellipes Loomis, 1975 -- valid
  Berrya keralensis Oommen, 1966 -- invalid
  Berylmys mackenziei (Thomas, 1916) -- valid -- Mackenzie's Berylmys
  Berylmys manipulus (Thomas, 1916) -- valid -- Manipur Berylmys
  Biantes albimanus (Loman, 1902) -- valid
  Biaporus Loomis, 1941 -- valid
  Biaporus montanus Loomis, 1941 -- valid
  Bias musicus changamwensis Someren, 1919 -- valid
  Bibloporus Thomson, 1859 -- valid
  Bidessus cacozelus Omer-Cooper, 1931 -- valid
  Bidessus fraudator Omer-Cooper, 1958 -- valid
  Bidessus fulgidus Omer-Cooper, 1974 -- valid
  Bidessus imitator Omer-Cooper, 1953 -- valid
  Bidessus muluensis Omer-Cooper, 1931 -- valid
  Bidessus mundulus Omer-Cooper, 1965 -- valid
  Bidessus rossi Omer-Cooper, 1974 -- valid
  Bidessus ruandensis Omer-Cooper, 1974 -- valid
  Bidessus straeleni Omer-Cooper, 1974 -- valid
  Bimichaelia australica Womersley, 1944 -- invalid
  Bimichaelia novazealandica Womersley, 1944 -- invalid
  Bimichaelia pusilla Womersley, 1944 -- invalid
  Bimichaelia stellaris Womersley, 1944 -- invalid
  Bimichaeliinae Womersley, 1944 -- valid
  Bipalium claviforme Loman, 1890 -- invalid
  Bipalium dubium Loman, 1890 -- valid
  Bipalium ephippium Loman, 1890 -- invalid
  Bipalium expeditionis Loman, 1895 -- invalid
  Bipalium gracilis (Loman, 1890) -- valid
  Bipalium hasseltii Loman, 1890 -- invalid
  Bipalium javanum Loman, 1883 -- valid
  Bipalium kuhli Loman, 1890 -- invalid
  Bipalium moseleyi Loman, 1888 -- valid
  Bipalium nigrilumbe Loman, 1890 -- invalid
  Bipalium quadricinctum Loman, 1890 -- invalid
  Bipalium sexcinctum Loman, 1890 -- invalid
  Bipalium simrothi Loman, 1895 -- valid
  Bipalium sumatrense Loman, 1883 -- invalid
  Bipalium vittatum Loman, 1888 -- invalid
  Bipalium weberi Loman, 1890 -- invalid
  Biradiostomias Gomon and Gibbs, 1985 -- invalid
  Blanfordimys afghanus (Thomas, 1912) -- valid -- Afghan Vole
  Blarina meridensis Thomas, 1898 -- invalid
  Blarinella Thomas, 1911 -- valid
  Blarinella griselda Thomas, 1912 -- valid -- Indochinese Short-tailed Shrew
  Blarinella wardi Thomas, 1915 -- valid -- Burmese Short-tailed Shrew, Ward's Short-tailed Shrew
  Blarinomys Thomas, 1896 -- valid
  Bleda notatus ugandae Someren, 1915 -- valid
  Bleda syndactylus nandensis Cunningham-van Someren & Schifter, 1981 -- valid
  Blennius adriacticus Steindachner and Kolombatovic, 1883 -- invalid
  Blennius adriaticus Steindachner and Kolombatovic, 1883 -- invalid
  Blennius dalmatinus Steindachner and Kolombatovic, 1883 -- invalid
  Blennius zvonimiri Kolombatovic, 1892 -- invalid -- zoanimir's blenny
  Blennophis striatus (Gilchrist and Thompson, 1908) -- valid
  Blepharipus ambiguus (Dahlbom, 1842) -- invalid
  Blepharipus carbonarius (Dahlbom, 1839) -- invalid
  Blepharipus monstrosus (Dahlbom, 1845) -- invalid
  Blepharipus pubescens inermis (Thomson, 1870) -- invalid
  Blepharoneura manchesteri Condon & Norrbom, 1994 -- valid
  Blepharoneura perkinsi Condon & Norrbom, 1994 -- valid
  Boana luctuosa (Pombal and Haddad, 1993) -- invalid
  Boana staufferorum (Duellman and Coloma, 1993) -- invalid
  Boana tapichalaca (Kizirian, Coloma and Paredes-Recalde, 2003) -- invalid
  Bodianus flavifrons Gomon, 2001 -- valid
  Bodianus flavipinnis Gomon, 2001 -- valid
  Bodianus insularis Gomon and Lubbock, 1980 -- valid
  Bodianus russelli Gomon and Randall, 1975 -- invalid
  Bodianus tanyokidus Gomon and Madden, 1981 -- valid
  Bogdocosa Ponomarev & Belosludtsev, 2008 -- valid
  Bogdocosa baskuntchakensis Ponomarev & Belosludtsev, 2008 -- invalid
  Bokermannohyla luctuosa (Pombal and Haddad, 1993) -- valid
  Bolbelasmus Boucomont, 1911 -- valid
  Bolboceras schaefferi Boucomont, 1911 -- invalid
  Bolborhynchoides Achmerov and Dombrovskaja-Achmerova, 1959 -- valid
  Bolborhynchoides exiguus (Achmerov and Dombrovskaja-Achmerova, 1941) -- valid
  Bolborhynchus Achmerov and Dombrovskaja-Achmerova, 1941 -- invalid
  Bolborhynchus exiguus Achmerov and Dombrovskaja-Achmerova, 1941 -- invalid
  Boletina birulai Lundstrom, 1915 -- valid
  Bolitoglossa digitigrada Wake, Brame and Thomas, 1982 -- valid
  Bolomys Thomas, 1916 -- invalid
  Bolomys amoenus (Thomas, 1900) -- invalid -- Pleasant Bolo Mouse
  Bolomys lactens (Thomas, 1918) -- invalid -- Rufous-bellied Bolo Mouse
  Bolomys punctulatus (Thomas, 1894) -- invalid -- Spotted Bolo Mouse
  Bolothrips schaferi (Thomasson and Post, 1966) -- valid
  Bombinator appeninicus Gistel and Bromme, 1850 -- invalid
  Bombomima apila Bromley, 1951 -- invalid
  Bombomima asturina Bromley, 1951 -- invalid
  Bombomima brunnea Bromley, 1929 -- invalid
  Bombomima engelhardti Bromley, 1931 -- invalid
  Bombomima fattigi Bromley, 1951 -- invalid
  Bombomima huron Bromley, 1929 -- invalid
  Bombomima nigella Bromley, 1934 -- invalid
  Bombomima royalensis Bromley, 1950 -- invalid
  Bombomima scutellaris Bromley, 1929 -- invalid
  Bombomima vorax Bromley, 1929 -- invalid
  Bombus arcticus Dahlbom, 1832 -- invalid
  Bombus arenicola Thomson, 1872 -- invalid
  Bombus balteatus Dahlbom, 1832 -- valid -- High Country Bumble Bee
  Bombus brevigena Thomson, 1870 -- invalid
  Bombus burrellanus Thomson, 1870 -- invalid
  Bombus consobrinus Dahlbom, 1832 -- valid
  Bombus ephippium Dahlbom, 1832 -- invalid
  Bombus nivalis Dahlbom, 1832 -- invalid
  Bombus tricolor Dahlbom, 1832 -- invalid
  Bonetogastrura delhezi (Stomp & Thibaud, 1974) -- valid
  Boopedon Thomas, 1870 -- valid
  Boophis boppa Hutter, Lambert, Cobb, Andriampenomanana and Vences, 2015 -- valid
  Boophis hillenii Blommers-Schlösser, 1979 -- invalid
  Boophis mandraka Blommers-Schlösser, 1979 -- valid
  Boophis reticulatus Blommers-Schlösser, 1979 -- valid
  Boophis viridis Blommers-Schlösser, 1979 -- valid
  Boreotrophon truncatus (Strom, 1768) -- valid -- bobtail trophon
  Boridae C. G. Thomson, 1859 -- valid
  Borinae C. G. Thomson, 1859 -- valid
  Bostrychocentrum metcalfi F. G. Thompson, 1974 -- valid -- metcalf holospira
  Bostrychoplites luniger (J. Thompson, 1858) -- valid
  Bothriocephalus rarus Thomas, 1937 -- valid
  Bothrops cotiara (Gomes, 1913) -- valid
  Bothrops fonsecai Hoge and Belluomini, 1959 -- valid -- Fonseca's Lancehead
  Botrydesmus Loomis, 1934 -- valid
  Botrydesmus biramosus Loomis, 1964 -- valid
  Botrydesmus conifer Loomis, 1964 -- valid
  Botrydesmus fulgens (Loomis, 1959) -- valid
  Boulenophrys brachykolos (Inger and Romer, 1961) -- invalid
  Bourletiella insula Folsom, 1932 -- valid
  Brachiones Thomas, 1925 -- valid
  Brachionus caudatus personata Ahlstrom -- valid
  Brachionus nilsoni Ahlstrom -- valid
  Brachionus zahniseri Ahlstrom, 1934 -- valid
  Brachycampta arctica Lundstrom, 1913 -- invalid
  Brachycampta fissicauda Lundstrom, 1911 -- invalid
  Brachycampta nigrofusca Lundstrom, 1909 -- invalid
  Brachycampta pistillata Lundstrom, 1911 -- invalid
  Brachycara Thomson, 1869 -- valid
  Brachycara ventralis Thomson, 1869 -- valid
  Brachycara yukawai Nagatomi, 1977 -- invalid
  Brachycephalus actaeus Monteiro, Condez, Garcia, Comitti, Amaral and Haddad, 2018 -- valid
  Brachycephalus alipioi Pombal and Gasparini, 2006 -- valid
  Brachycephalus margaritatus Pombal and Izecksohn, 2011 -- valid
  Brachycephalus pernix Pombal, Wistuba and Bornschein, 1998 -- valid
  Brachycephalus sulfuratus Condez, Monteiro, Comitti, Garcia, Amaral and Haddad, 2016 -- valid
  Brachycephalus vertebralis Pombal, 2001 -- valid
  Brachycybe petasata Loomis, 1936 -- valid
  Brachycybe producta Loomis, 1936 -- valid
  Brachydontes Nomen Nudum -- invalid
  Brachygluta Thomson, 1859 -- valid
  Brachylecithum Shtrom, 1940 -- valid
  Brachymerus Dahlbom, 1845 -- invalid
  Brachymerus megerlei (Dahlbom, 1845) -- invalid
  Brachyurophis semifasciatus woodjonesii (Thomson, 1934) -- valid -- Cape York Shovel-nosed Snake
  Bradburia Faubel, Blome and Cannon, 1994 -- valid
  Bradburia australiensis Faubel, Blome and Cannon, 1994 -- valid
  Bradornis microrhynchus taruensis Someren, 1921 -- valid
  Bradyetes pacificus Ohtsuka, Boxshall and Shimomura, 2005 -- valid
  Bradynotes obesa (Thomas, 1872) -- valid
  Bradynotes obesa obesa (Thomas, 1872) -- valid
  Bradypus gorgon Thomas, 1926 -- invalid
  Bradypus macrodon Thomas, 1917 -- invalid
  Bradypus variegatus gorgon Thomas, 1926 -- valid
  Bradypus violeta Thomas, 1917 -- invalid
  Branchinella acacioidea Belk and Sissom, 1992 -- invalid -- Hidalgo fairy shrimp
  Branchinella sublettei Sissom, 1976 -- invalid -- Sublette fairy shrimp
  Braunsapis boharti (Krombein, 1951) -- valid
  Bregmaceros Thompson, 1840 -- valid
  Bregmaceros mcclellandi Thompson, 1840 -- valid -- bregmacčre de l'oceán Indien, bregmacero, spotted codlet, unicorn cod
  Bregmaceros mcclellandii Thompson, 1840 -- invalid -- spotted codlet
  Brevicornu arcticum (Lundstrom, 1913) -- valid
  Brevicornu fissicauda (Lundstrom, 1911) -- valid
  Brevicornu nigrofuscum (Lundstrom, 1909) -- valid
  Brevigonus shelfordi (Loomis, 1944) -- valid
  Brinkhurstia donaldi Omodeo & Coates, 2001 -- valid
  Brontaea quadristigma (Thomson, 1869) -- valid
  Brookesia betschi Brygoo, Blanc and Domergue, 1974 -- valid
  Brookesia griveaudi Brygoo, Blanc and Domergue, 1974 -- valid -- Marojejy Leaf Chameleon
  Brookesia karchei Brygoo, Blanc and Domergue, 1970 -- valid
  Brookesia lambertoni Brygoo and Domergue, 1970 -- valid -- Fito Leaf Chameleon
  Brookesia peyrierasi Brygoo and Domergue, 1974 -- valid
  Brookesia ramanantsoai Brygoo and Domergue, 1975 -- valid
  Brookesia therezieni Brygoo and Domergue, 1970 -- valid -- Permet Leaf Chameleon
  Brookesia thieli Brygoo and Domergue, 1969 -- valid -- Domergue's Leaf Chameleon
  Brookesia vadoni Brygoo and Domergue, 1968 -- valid -- Iaraka River Leaf Chameleon
  Brucepattersonius iheringi (Thomas, 1896) -- valid -- Ihering's Akodont, Ihering's Hocicudo
  Bruneria brunnea (Thomas, 1871) -- valid
  Brunsonia Loomis & Schmitt, 1971 -- valid
  Brychius Thomson, 1859 -- valid
  Brycinus luteus (Roman, 1966) -- valid
  Bryconamericus andresoi Román-Valencia, 2003 -- valid
  Bryconamericus cristiani Román-Valencia, 1999 -- valid
  Bryconamericus dahli Román-Valencia, 2000 -- valid
  Bryconamericus galvisi Román-Valencia, 2000 -- valid
  Bryconamericus gonzalezoi Román-Valencia, 2002 -- valid
  Bryconamericus guizae Román-Valencia, 2003 -- valid
  Bryconamericus huilae Román-Valencia, 2003 -- valid
  Bryconamericus ichoensis Román-Valencia, 2000 -- valid
  Bryconamericus lassorum Román-Valencia, 2002 -- valid
  Bryconamericus macrophthalmus Román-Valencia, 2003 -- valid
  Bryconamericus orinocoense Román-Valencia, 2003 -- valid
  Bryconamericus plutarcoi Román-Valencia, 2001 -- valid
  Bryconamericus subtilisform Román-Valencia, 2003 -- valid
  Bryconamericus yokiae Román-Valencia, 2003 -- valid
  Brydaeon Thomson, 1867 -- invalid
  Brygophis Domergue and Bour, 1988 -- valid
  Brygophis coulangesi (Domergue, 1988) -- valid
  Bubalidinae Sclater and Thomas, 1894 -- invalid
  Budorcas taxicolor bedfordi Thomas, 1911 -- valid
  Buergeria otai Wang, Hsiao, Lee, Tseng, Lin, Komaki and Lin, 2018 -- valid
  Buettneriodrilus aequatorialis angolanus Omodeo, 1973 -- valid
  Buettneriodrilus dundoensis Omodeo, 1973 -- valid
  Buettneriodrilus macrocystis Omodeo, 1973 -- valid
  Buettneriodrilus sexcaliculatus Omodeo, 1973 -- valid
  Bufo alatus Thominot, 1884 -- invalid
  Bufo koynayensis Soman, 1963 -- invalid
  Bufo travancoricus Beddome, 1878 -- invalid
  Bufo typhonius alatus Thominot, 1884 -- invalid
  Bulbamphiascus denticulatus (Thompson, 1893) -- valid
  Bullimus luzonicus (Thomas, 1895) -- valid -- Luzon Bullimus
  Bunolagus Thomas, 1929 -- valid
  Bunolagus monticularis (Thomas, 1903) -- valid -- Bushman Hare, Riverine Rabbit
  Bunomys Thomas, 1910 -- valid -- Hill Rats
  Bunomys coelestis (Thomas, 1896) -- valid -- Lampobatang Bunomys
  Bunomys fratrorum (Thomas, 1896) -- valid -- Northeastern Peninsula Bunomys
  Bureauella insignis Dominique, 1898 -- invalid
  Burmoniscus okinawaensis (Nunomura, 1986) -- valid
  Burramyidae Broom, 1898 -- valid
  Burramys Broom, 1896 -- valid
  Burramys parvus Broom, 1896 -- valid -- Mountain Pygmy Possum
  Buteo japonicus toyoshimai Momiyama, 1927 -- valid
  Buteogallus anthracinus utilensis Twomey, 1956 -- valid
  Butorides striata rhizophorae Salomonsen, 1934 -- valid
  Buzonium Cook & Loomis, 1928 -- valid
  Buzonium crassipes Cook & Loomis, 1928 -- valid
  Cacajao calvus ucayalii (Thomas, 1928) -- valid -- Ucayali Bald Uacari
  Caecognathia amakusaensis (Nunomura, 1992D) -- valid
  Caecognathia kikuchii (Nunomura, 1992D) -- valid
  Caecognathia nasuta (Nunomura, 1992D) -- valid
  Caecognathia saikaiensis (Nunomura, 1992D) -- valid
  Caecostenetroides nipponicum Nunomura, 1975 -- valid
  Caelatura aegyptiaca abdalliana Bloomer, 1946 -- invalid
  Caelatura aegyptiaca figdiana Bloomer, 1946 -- invalid
  Caelorinchus chilensis Gilbert and Thompson in Thompson, 1916 -- valid -- Chilean grenadier
  Caenocara Thomson, 1859 -- valid
  Caenolestes Thomas, 1895 -- valid -- common shrew opossums
  Caenolestes fuliginosus (Tomes, 1863) -- valid -- Dusky Caenolestid
  Caenolestes fuliginosus fuliginosus (Tomes, 1863) -- valid
  Caenolestes fuliginosus obscurus Thomas, 1895 -- valid
  Caenoptera Thomson, 1859 -- invalid
  Caenoscelis Thomson, 1863 -- valid
  Calandrella brachydactyla rubiginosa Fromholz, 1913 -- valid
  Calandrella rufescens heinei (Homeyer, 1873) -- valid
  Calcochloris obtusirostris chrysillus (Thomas and Schwann, 1905) -- valid
  Calianotus bituberculatus (Loomis, 1960) -- valid
  Calicalicus rufocarpalis Goodman, Hawkins & Domergue, 1997 -- valid -- Red-shouldered Vanga
  Calicina cloughensis (Briggs and Hom, 1967) -- valid
  Calicina digita (Briggs and Hom, 1967) -- valid
  Calicina kaweahensis (Briggs and Hom, 1966) -- valid
  Calicina minor (Briggs and Hom, 1966) -- valid
  Calicina sequoia (Briggs and Hom, 1966) -- valid
  Calicina serpentinea (Briggs and Hom, 1966) -- valid
  Calicina sierra (Briggs and Hom, 1967) -- valid
  Calidris alpina actites Nechaev & Tomkovich, 1988 -- valid
  Calidris alpina kistchinski Tomkovich, 1986 -- valid
  Calidris canutus piersmai Tomkovich, 2001 -- valid
  Calidris canutus roselaari Tomkovich, 1990 -- valid -- red knot
  Callicebus Thomas, 1903 -- valid -- titi monkeys
  Callicebus (Callicebus) Thomas, 1903 -- invalid
  Callicebus egeria Thomas, 1908 -- invalid
  Callicebus emiliae Thomas, 1911 -- invalid
  Callicebus hoffmannsi Thomas, 1908 -- invalid -- Hoffmanns' titi, Hoffmanns's Titi
  Callicebus lucifer Thomas, 1914 -- invalid -- Lucifer Titi, Yellow-handed Titi
  Callicebus oenanthe Thomas, 1924 -- invalid -- Andean titi, Andean titi monkey, Rio Mayo Titi
  Callicebus pallescens Thomas, 1907 -- invalid -- Pale Titi, White-coated Titi
  Callicebus personatus brunello Thomas, 1913 -- invalid
  Callicebus purinus Thomas, 1927 -- invalid -- Rio Purus Titi
  Callicebus regulus Thomas, 1927 -- invalid -- Juruá Collared Titi, Red-headed Titi, Rio Juruá Collared Titi
  Callicebus remulus Thomas, 1908 -- invalid
  Callicebus rutteri Thomas, 1923 -- invalid
  Callicebus toppini Thomas, 1914 -- invalid
  Callicebus toppinii Thomas, 1914 -- invalid
  Callichthys fabricioi Román-Valencia, Lehmann A. and Muńoz, 1999 -- valid
  Callimico goeldii (Thomas, 1904) -- valid -- Goeldi's Marmoset, Goeldi's Monkey
  Calliophidiaster Tommasi, 1970 -- invalid
  Calliophidiaster psicodelica Tommasi, 1970 -- invalid
  Calliophis haematoetron E. N. Smith, Manamendra-Arachchi and Somaweera, 2008 -- valid -- Blood-bellied Coralsnake
  Callipallene novaezealandiae (Thomson, 1884) -- valid
  Callipogonini Thomson, 1860 -- valid
  Callithrix emiliae (Thomas, 1920) -- invalid -- Emilia's Marmoset
  Callithrix flaviceps (Thomas, 1903) -- valid -- Buffy-headed Marmoset
  Callithrix leucippe (Thomas, 1922) -- invalid -- White Marmoset
  Callithrix penicillata jordani Thomas, 1904 -- invalid
  Callophrys gryneus juniperaria (J. A. Comstock, 1925) -- valid
  Callosciurus erythraeus bartoni (Thomas, 1914) -- valid
  Callosciurus erythraeus gloveri (Thomas, 1921) -- valid
  Callosciurus erythraeus harringtoni (Thomas, 1905) -- valid
  Callosciurus erythraeus styani (Thomas, 1894) -- valid
  Callosciurus finlaysonii annellatus Thomas, 1929 -- valid
  Callosciurus finlaysonii menamicus Thomas, 1929 -- valid
  Callosciurus melanogaster (Thomas, 1895) -- valid -- Mentawai Squirrel
  Callosciurus melanogaster melanogaster (Thomas, 1895) -- valid
  Callosciurus orestes (Thomas, 1895) -- valid -- Borneo Black-banded Squirrel
  Callosciurus pygerythrus janetta (Thomas, 1914) -- valid
  Callosciurus pygerythrus owensi (Thomas and Wroughton, 1916) -- valid
  Callosciurus pygerythrus stevensi (Thomas, 1908) -- valid
  Callosciurus quinquestriatus imarius Thomas, 1926 -- valid
  Calocarides coronatus (Trybom, 1904) -- valid
  Calodactylodes aureus (Beddome, 1870) -- valid
  Calomys boliviae (Thomas, 1901) -- valid -- Bolivian Laucha, Bolivian Vesper Mouse
  Calomys callidus (Thomas, 1916) -- valid -- Crafty Vesper Mouse, Reclusive Laucha
  Calomys lepidus (Thomas, 1884) -- valid -- Andean Vesper Mouse, Graceful Laucha
  Calomys musculinus (Thomas, 1913) -- valid -- Drylands Laucha, Drylands Vesper Mouse
  Calomys sorellus (Thomas, 1900) -- valid -- Peruvian Laucha, Peruvian Vesper Mouse
  Calomys venustus (Thomas, 1894) -- valid -- Córdoba Laucha
  Calomyscus Thomas, 1905 -- valid -- Mouse-like Hamsters
  Calomyscus bailwardi Thomas, 1905 -- valid -- Mouse-like Hamster, Zagros Mountains Calomyscus
  Calomyscus baluchi Thomas, 1920 -- valid -- Baluchi mouse-like hamster, Pakistan Calomyscus
  Calomyscus hotsoni Thomas, 1920 -- valid -- Hotson's Calomyscus, Hotson's Mouse-like Hamster
  Caloprymnus Thomas, 1888 -- valid
  Calumma andringitraense (Brygoo, Blanc and Domergue, 1972) -- valid
  Calumma brevicorne tsarafidyi (Brygoo and Domergue, 1970) -- invalid
  Calumma capuroni (Brygoo, Blanc and Domergue, 1972) -- valid
  Calumma guillaumeti (Brygoo, Blanc and Domergue, 1974) -- valid
  Calumma hilleniusi (Brygoo, Blanc and Domergue, 1973) -- valid
  Calumma marojezense (Brygoo, Blanc and Domergue, 1970) -- valid
  Calumma peyrierasi (Brygoo, Blanc and Domergue, 1974) -- valid
  Calumma tsaratananense (Brygoo and Domergue, 1967) -- valid
  Calumma tsaratananensis (Brygoo and Domergue, 1967) -- invalid
  Caluromys (Mallodelphys) Thomas, 1920 -- valid
  Caluromys derbianus aztecus (Thomas, 1913) -- valid
  Caluromys derbianus fervidus (Thomas, 1913) -- valid
  Caluromys derbianus nauticus (Thomas, 1913) -- valid
  Caluromys derbianus pallidus (Thomas, 1899) -- valid
  Caluromys philander trinitatis (Thomas, 1894) -- valid
  Calwellia Wyville Thomson, 1858 -- valid
  Calwellia bicornis Wyville Thomson, 1858 -- valid
  Calycomyza platyptera (Thomson, 1869) -- valid
  Calymmodesmus biensifer Loomis, 1959 -- valid
  Calymmodesmus falcatus Loomis, 1959 -- valid
  Calymmodesmus formicatus Loomis, 1959 -- valid
  Calymmodesmus gracilis Loomis, 1959 -- valid
  Calymmodesmus mexicanus Loomis, 1959 -- valid
  Calymmodesmus montanus Loomis, 1964 -- valid
  Calymmodesmus rettenmeyeri Loomis, 1959 -- valid
  Calyptorhynchus banksii graptogyne Schodde, Saunders & Homberger, 1989 -- valid
  Calythea micropteryx (Thomson, 1869) -- valid
  Cambala texana Loomis, 1938 -- valid
  Cambalomma Loomis, 1941 -- valid
  Cambalomma laevis Loomis, 1941 -- valid
  Cambarus adustus Thoma, Fetzner, Stocker and Loughman, 2016 -- valid
  Cambarus appalachiensis Loughman, Welsh and Thoma, 2017 -- valid -- Conhaway crayfish
  Cambarus callainus Thoma, Loughman and Fetzner, 2014 -- valid -- Big Sandy crayfish
  Cambarus eeseeohensis Thoma, 2005 -- valid -- Grandfather Mountain Crayfish
  Cambarus fetzneri Loughman, Welsh and Thoma, 2019 -- valid -- Allegheny Mountain mudbug
  Cambarus guenteri Loughman, Henkanaththegedara, Fetzner and Thoma, 2017 -- valid
  Cambarus hatfieldi Loughman, Fagundo, Lau, Welsh and Thoma, 2013 -- valid
  Cambarus hazardi Loughman, Henkanaththegedara, Fetzner and Thoma, 2017 -- valid
  Cambarus jezerinaci Thoma, 2000 -- valid -- Spiny Scale Crayfish
  Cambarus loughmani Foltz, Sadecky, Fetzner and Thoma, 2019 -- valid -- Blue Teays mudbug
  Cambarus magerae Thoma and Fetzner, 2015 -- valid
  Cambarus pauleyi Loughman, Thoma, Fetzner and Stocker, 2015 -- valid
  Cambarus polychromatus Thoma, Jezerinac and Simon, 2005 -- invalid -- Paintedhand Mudbug
  Cambarus stockeri Thoma, 2011 -- valid
  Cambarus taylori Loughman, Henkanaththegedara, Fetzner and Thoma, 2017 -- valid
  Camerata Vila-Farré, Sluys, D'Aniello, Cebriŕ, Ferrer and Romero, 2009 -- valid
  Camerata robusta Vila-Farré, Sluys, D'Aniello, Cebriŕ, Ferrer and Romero, 2009 -- valid
  Camisia monongahelae Bromberek & Olszanowski, 2012 -- valid
  Camisia zangherii Lombardini, 1963 -- valid
  Campethera abingoni kavirondensis van Someren, 1926 -- valid
  Campiglossa dirlbekorum Norrbom, 1999 -- valid
  Campiglossa footei Thompson, 1999 -- valid
  Campiglossa genalis (Thomson, 1869) -- valid
  Campodea linsleyi Conde and Thomas, 1957 -- valid
  Campodea michelbacheri Conde and Thomas, 1957 -- valid
  Campodea monticola Conde and Thomas, 1957 -- valid
  Campodea monticola monticola Conde and Thomas, 1957 -- valid
  Campodea monticola obsoleta Conde and Thomas, 1957 -- valid
  Campodea monticola pilosa Conde and Thomas, 1957 -- valid
  Campodea repentina Conde and Thomas, 1957 -- valid
  Campodea scopigera Conde and Thomas, 1957 -- valid
  Campodea teresiae Conde and Thomas, 1957 -- valid
  Campodea usingeri Conde and Thomas, 1957 -- valid
  Camptibia Cai and Tomokuni, 2003 -- valid
  Camptibia obscura Cai and Tomokuni, 2003 -- valid
  Camptocladius globifer Lundstrom, 1915 -- invalid
  Camptostoma obsoletum majus Griscom, 1932 -- valid
  Campylopterus cuvierii maculicauda (Griscom, 1932) -- invalid
  Campylorhamphus pusillus guapiensis Romero-Zambrano, 1980 -- valid
  Campylorhamphus pusillus olivaceus Griscom, 1927 -- valid
  Campylorhamphus trochilirostris brevipennis Griscom, 1932 -- valid
  Campylorhynchus capistratus nicaraguae (W. Miller & Griscom, 1925) -- valid
  Campylorhynchus capistratus xerophilus (Griscom, 1930) -- valid
  Campylorhynchus zonatus panamensis (Griscom, 1927) -- valid
  Cancellothyrididae Thomson, 1926 -- valid
  Cancellothyris Thomson, 1926 -- valid
  Canirallus kioloides berliozi (Salomonsen, 1934) -- valid
  Canis aureus soudanicus Thomas, 1903 -- valid
  Canis sechurae Thomas, 1900 -- invalid
  Cannomys Thomas, 1915 -- valid
  Cannomys badius plumbescens Thomas, 1915 -- invalid
  Cannomys pater Thomas, 1915 -- invalid
  Cantenicella alata Wyville Thomson, 1858 -- invalid
  Canthyporus alvei Omer-Cooper, 1965 -- valid
  Canthyporus angustatus Omer-Cooper, 1965 -- valid
  Canthyporus brincki Omer-Cooper, 1965 -- valid
  Canthyporus congener Omer-Cooper, 1956 -- valid
  Canthyporus consuetus Omer-Cooper, 1965 -- valid
  Canthyporus fluviatilis Omer-Cooper, 1956 -- valid
  Canthyporus guignoti Omer-Cooper, 1956 -- valid
  Canthyporus guttatus Omer-Cooper, 1956 -- valid
  Canthyporus latus Omer-Cooper, 1965 -- valid
  Canthyporus lowryi Omer-Cooper, 1965 -- valid
  Canthyporus nebulosus Omer-Cooper, 1965 -- valid
  Canthyporus parvus Omer-Cooper, 1955 -- valid
  Canthyporus planus Omer-Cooper, 1965 -- valid
  Canthyporus swaziensis Omer-Cooper, 1956 -- valid
  Cantorchilus leucopogon grisescens (Griscom, 1932) -- valid
  Cantorchilus nigricapillus reditus (Griscom, 1932) -- valid
  Capnioneura balkanica macedonica Ikonomov, 1978 -- valid
  Capnioneura valandovi Ikonomov, 1978 -- valid
  Capnobotes fuliginosus (Thomas, 1872) -- valid
  Capnobotes occidentalis (Thomas, 1872) -- valid
  Capreolus pygargus bedfordi Thomas, 1908 -- valid
  Caprimulgus ridgwayi troglodytes Griscom, 1930 -- invalid
  Caprimulgus rufus minimus Griscom & Greenway, 1937 -- invalid
  Carabodes tyrrhenicus Salomone, Avanzati, Baratti & Bernini, 2003 -- valid
  Caracal caracal poecilotis Thomas and Hinton, 1921 -- valid
  Caraiba andreae melopyrrha (Thomas and Garrido, 1967) -- valid
  Caraiba andreae peninsulae (Schwartz and Thomas, 1960) -- valid
  Caraibodesmus acutipes Loomis, 1975 -- valid
  Caraibodesmus criniger Loomis, 1937 -- valid
  Caraibodesmus pictus Loomis, 1969 -- valid
  Caraibodesmus sculpturatus Loomis, 1975 -- valid
  Carduelis notata oleacea (Griscom, 1932) -- invalid
  Cardus crucifer (Thomson, 1873) -- valid
  Caridae Thompson, 1992 -- valid
  Carinae Thompson, 1992 -- valid
  Carinina arenaria Hylbom, 1957 -- valid
  Carinina coei Hylbom, 1957 -- valid
  Carinostigmus bucheilus Krombein, 1984 -- valid
  Carinostigmus clypeolus Krombein, 1984 -- valid
  Carinostigmus costatus Krombein, 1984 -- valid
  Carinostigmus griphus Krombein, 1984 -- valid
  Carios hadiae Klompen, Keirans and Durden, 1995 -- invalid
  Carios jerseyi Klompen and Grimaldi, 2001 -- invalid
  Carios multisetosus Klompen, Keirans and Durden, 1995 -- invalid
  Carios papuensis Klompen, Keirans and Durden, 1995 -- invalid
  Carpathonesticus spelaeus (Szombathy, 1917) -- valid
  Carpias parvus (Omer-Cooper, 1921) -- valid
  Carpodacus mexicanus potosinus Griscom, 1928 -- invalid
  Carpomys Thomas, 1895 -- valid -- Luzon Tree Rats
  Carpomys melanurus Thomas, 1895 -- valid -- Large Luzon Carpomys
  Carpomys phaeurus Thomas, 1895 -- valid -- Small Luzon Carpomys
  Carponycteris crassa Thomas, 1895 -- invalid
  Carsia sororiata labradorensis (Sommer, 1897) -- invalid
  Carsia sororiata labradoriensis (Sommer, 1897) -- valid
  Carterornis chrysomela pulcherrimus (Salomonsen, 1964) -- valid
  Caryomys Thomas, 1911 -- valid
  Caryomys eva (Thomas, 1911) -- valid -- Eva's Red-backed Vole, Ganzu Vole
  Caryomys inez (Thomas, 1908) -- valid -- Inez's Red-backed Vole, Kolan vole
  Caseya coxalis Loomis, 1966 -- valid
  Casinycteris Thomas, 1910 -- valid
  Casinycteris argynnis Thomas, 1910 -- valid -- Golden Short-palated Fruit Bat, Short-palated Fruit Bat
  Caspicosa Ponomarev, 2007 -- valid
  Caspicosa kulsaryensis Ponomarev, 2007 -- valid
  Caspicosa manytchensis Ponomarev, 2007 -- valid
  Cassida inaequalis Thomson, 1858 -- valid
  Cataglyphis cursor (Fonscolombe, 1846) -- valid
  Cataglyphis cursor cursor (Fonscolombe, 1846) -- valid
  Catapleuradesmus Loomis, 1964 -- valid
  Catapleuradesmus diadematus Loomis, 1964 -- valid
  Catapotia Thomson, 1860 -- valid
  Catapotia laevissima Thomson, 1860 -- valid
  Catenula confusa Nuttycombe, 1956 -- valid
  Catenula leptocephala Nuttycombe, 1956 -- valid
  Catharus aurantiirostris russatus Griscom, 1924 -- valid
  Catharus mexicanus cantator Griscom, 1930 -- valid
  Catophragmidae Utinomi, 1968 -- valid
  Catops luteipes Thomson, 1884 -- valid
  Cavia aperea guianae (Thomas, 1901) -- valid
  Cavia aperea pamparum (Thomas, 1901) -- valid
  Cavia aperea rosida (Thomas, 1917) -- valid
  Cavia tschudii festina Thomas, 1927 -- valid
  Cavia tschudii sodalis Thomas, 1926 -- valid
  Cavia tschudii stolida Thomas, 1926 -- valid
  Cavolinia globosa Nomen Nudum -- valid
  Cebus albifrons cuscinus Thomas, 1901 -- invalid
  Cebus apella peruanus Thomas, 1901 -- invalid
  Cebus cuscinus Thomas, 1901 -- valid -- Shock-headed Capuchin
  Cebus imitator Thomas, 1903 -- valid -- Panamanian White-faced Capuchin
  Cebus olivaceus Schomburgk, 1848 -- valid -- Guianan Weeper Capuchin, weeping capuchin
  Cebus olivaceus olivaceus Schomburgk, 1848 -- valid -- Weeper Capuchin
  Cecidochares quinquevittata Norrbom, 1999 -- valid
  Cecidomyia citricola Thompson, 1915 -- invalid
  Cecilia malabarica Beddome, 1870 -- invalid
  Celaenomys Thomas, 1898 -- invalid
  Celaenomys silaceus (Thomas, 1895) -- invalid
  Celia curruca Dahlbom, 1844 -- invalid
  Cemonus carinatus (Thomson, 1870) -- invalid
  Cemonus lugens (Dahlbom, 1842) -- invalid
  Cemonus rugifer Dahlbom, 1844 -- invalid
  Cemonus unicolor rugifer Dahlbom, 1844 -- invalid
  Cenomus montanus (Dahlbom, 1845) -- invalid
  Centraugaptilus pyramidalis Tanaka and Omori, 1971 -- valid
  Centrelus boreus (Loomis, 1966) -- valid
  Centrelus spinosus (Loomis, 1968) -- valid
  Centris dominiquella Dominique, 1898 -- invalid
  Centris zonalis Dominique, 1899 -- invalid
  Centrocerum Thomson, 1864 -- invalid
  Centroclisis gabonica (Fairmaire in Thomson, 1858) -- valid
  Centrolene charapita Twomey, Delia and Castroviejo-Fisher, 2014 -- valid
  Centronycteris centralis Thomas, 1912 -- valid -- Thomas's Shaggy Bat
  Centrophorus waitei Thompson, 1930 -- invalid
  Centropyge venusta (Yasuda and Tominaga, 1969) -- invalid
  Centropyge venustus (Yasuda and Tominaga, 1969) -- valid
  Cephalopholis polyspila Randall and Satapoomin, 2000 -- valid
  Cephalophus adersi Thomas, 1918 -- valid -- Aders' Duiker, Aders's duiker
  Cephalophus brookei Thomas, 1903 -- valid -- Brooke's Duiker
  Cephalophus dorsalis castaneus Thomas, 1892 -- valid
  Cephalophus harveyi (Thomas, 1893) -- invalid -- Harvey's duiker
  Cephalophus jentinki Thomas, 1892 -- valid -- Jentink's duiker, Jentink's Duiker
  Cephalophus natalensis harveyi (Thomas, 1893) -- valid -- Harvey's duiker
  Cephalophus nigrifrons rubidus Thomas, 1901 -- valid -- Ruwenzori duiker
  Cephalophus rubidus Thomas, 1901 -- invalid -- Ruwenzori duiker
  Cephalophus weynsi Thomas, 1901 -- valid -- Weyns's duiker, Weyns's Duiker
  Cephalophus weynsi johnstoni Thomas, 1901 -- valid
  Cephalophus weynsi weynsi Thomas, 1901 -- valid
  Cephalotes aello Thomas, 1900 -- invalid
  Cephalothrix arenaria Hylbom, 1957 -- valid
  Cepphus grylle atlantis Salomonsen, 1944 -- invalid
  Cepphus grylle ultimus Salomonsen, 1944 -- invalid
  Ceraphron pallipes (Thomson, 1858) -- valid
  Ceraphron tetratomus (Thomson, 1858) -- valid
  Cerapus benthophilus Thomas and Heard, 1979 -- valid
  Cerapus cudjoe Lowry and Thomas, 1991 -- valid
  Ceratacis Thomson, 1859 -- valid
  Ceratacis flavipes Thomson, 1859 -- valid
  Ceratias uranoscopus Murray in Thompson, 1877 -- valid -- stargazing seadevil
  Ceratina cypriaca Mavromoustakis, 1954 -- valid
  Ceratocolus loewi (Dahlbom, 1845) -- invalid
  Ceratophorus carinatus (Thomson, 1870) -- invalid
  Ceratophorus clypealis (Thomson, 1870) -- invalid
  Ceratophysella communis (Folsom, 1897) -- valid
  Ceratophysella guthriei (Folsom, 1916) -- valid
  Ceraturgopsis oklahomensis Bromley, 1934 -- invalid
  Ceraturgus oklahomensis (Bromley, 1934) -- valid
  Cercartetus lepidus (Thomas, 1888) -- valid -- Tasmanian Pygmy Possum
  Cercaspis travancoricus Beddome, 1870 -- invalid
  Cerceris bolingeriana Krombein, 1979 -- valid
  Cerceris bougainvillensis lavellensis Krombein, 1969 -- valid
  Cerceris bougainvillensis novogeorgica Krombein, 1969 -- valid
  Cerceris bougainvillensis solomonis Krombein, 1969 -- valid
  Cerceris brandti Krombein, 1969 -- valid
  Cerceris callani Krombein, 1972 -- valid
  Cerceris cincta Dahlbom, 1844 -- invalid
  Cerceris clypeata Dahlbom, 1844 -- valid -- weevil wasp
  Cerceris conifera Krombein, 1981 -- valid
  Cerceris conigera Dahlbom, 1845 -- invalid
  Cerceris cristovalensis Krombein, 1969 -- valid
  Cerceris curculionicida Krombein, 1981 -- valid
  Cerceris cyclops Krombein, 1969 -- valid
  Cerceris dispar Dahlbom, 1845 -- valid
  Cerceris dogonensis Krombein, 1974 -- valid
  Cerceris erythrocephala Dahlbom, 1845 -- invalid
  Cerceris eumolpicida Krombein, 1981 -- valid
  Cerceris formosa Dahlbom, 1845 -- valid
  Cerceris formosa formosa Dahlbom, 1845 -- valid
  Cerceris histrio Dahlbom, 1845 -- invalid
  Cerceris intrusa Krombein, 1981 -- valid
  Cerceris karimuiensis Krombein, 1969 -- valid
  Cerceris lunigera Dahlbom, 1845 -- valid
  Cerceris luxuriosa Dahlbom, 1845 -- valid
  Cerceris militaris Dahlbom, 1844 -- valid
  Cerceris millironi Krombein, 1969 -- valid
  Cerceris millironi malaitensis Krombein, 1969 -- valid
  Cerceris millironi millironi Krombein, 1969 -- valid
  Cerceris millironi tulagiensis Krombein, 1969 -- valid
  Cerceris minuscula korovensis Krombein, 1969 -- valid
  Cerceris minuscula sculleniana Krombein, 1969 -- valid
  Cerceris minuscula stanleyensis Krombein, 1969 -- valid
  Cerceris misoolensis Krombein, 1969 -- valid
  Cerceris mordax Krombein, 1969 -- valid
  Cerceris nasuta Dahlbom, 1844 -- invalid
  Cerceris papuensis Krombein, 1969 -- valid
  Cerceris picta Dahlbom, 1844 -- valid
  Cerceris pictiventris Dahlbom, 1845 -- valid
  Cerceris pictiventris pictiventris Dahlbom, 1845 -- valid
  Cerceris reicula Krombein, 1969 -- valid
  Cerceris solitaria Dahlbom, 1845 -- valid
  Cerceris spinolae (Dahlbom, 1844) -- invalid
  Cerceris syrkuti Dahlbom, 1845 -- invalid
  Cerceris toxopeusi Krombein, 1969 -- valid
  Cerceris truncatula Dahlbom, 1844 -- invalid
  Cerceris vechti Krombein, 1969 -- valid
  Cerceris vellensis Krombein, 1969 -- valid
  Cerceris vellensis fordi Krombein, 1969 -- valid
  Cerceris vellensis obrieni Krombein, 1969 -- valid
  Cerceris vellensis segiensis Krombein, 1969 -- valid
  Cerceris vellensis vellensis Krombein, 1969 -- valid
  Cerceris venusta atrescens Krombein, 1969 -- valid
  Cercopithecus albogularis francescae Thomas, 1902 -- invalid -- Red-eared Sykes's Monkey
  Cercopithecus ascanius whitesidei Thomas, 1909 -- valid -- Yellow-nosed Red-tailed Monkey
  Cercopithecus buettikeri pygrius Thomas, 1923 -- invalid
  Cercopithecus denti Thomas, 1907 -- valid -- Dent's Mona Monkey, Dent's Monkey
  Cercopithecus francescae Thomas, 1902 -- invalid
  Cercopithecus leucampyx aurora Thomas and Wroughton, 1910 -- invalid
  Cercopithecus lowei Thomas, 1923 -- valid -- Lowe's Mona Monkey, Lowe's Monkey
  Cercopithecus mitis francescae Thomas, 1902 -- valid -- Red-eared White-collared Monkey
  Cercopithecus omensis Thomas, 1901 -- invalid
  Cercopithecus patas sannio Thomas, 1906 -- invalid
  Cercopithecus preussi insularis Thomas, 1910 -- invalid
  Cercopithecus pygerythrus helvescens Thomas, 1926 -- invalid
  Cercyon marinus Thomson, 1853 -- valid
  Cerdocyon thous soudanicus (Thomas, 1903) -- valid
  Cerithium literatum Nomen Nudum -- invalid
  Cernosvitovia Omodeo, 1956 -- valid
  Cerobates debilis J. Thomson, 1858 -- valid
  Cerobates sulcatus sulcirostris J. Thomson, 1858 -- valid
  Ceroplastes cirripediformis Comstock, 1881 -- valid
  Certhia americana extima W. Miller & Griscom, 1925 -- valid
  Certhia americana jaliscensis W. Miller & Griscom, 1925 -- valid
  Certhia americana pernigra Griscom, 1935 -- valid
  Certhia familiaris daurica Domaniewski, 1922 -- valid
  Cetopsorhamdia iheringi Schubart and Gomes, 1959 -- valid
  Ceuthophilus pallidus Thomas, 1872 -- valid
  Ceuthophilus utahensis Thomas, 1876 -- valid
  Chaerephon ansorgei (Thomas, 1913) -- valid -- Ansorge's free-tailed bat, Ansorge's Free-tailed Bat
  Chaerephon atsinanana Goodman, Buccas, Naidoo, Ratrimomanarivo, Taylor and Lamb, 2010 -- valid -- Madagascar Free-tailed Bat
  Chaerephon bemmeleni cistura (Thomas, 1903) -- valid
  Chaerephon jobensis colonicus (Thomas, 1906) -- valid
  Chaerephon nigeriae Thomas, 1913 -- valid -- Nigerian free-tailed bat, Nigerian Free-tailed Bat
  Chaerephon nigeriae nigeriae Thomas, 1913 -- valid
  Chaerephon shortridgei Thomas, 1926 -- valid -- Shortridge's Free-tailed Bat
  Chaeropsodes Gilchrist and Thompson, 1909 -- invalid
  Chaeropsodes pictus Gilchrist and Thompson, 1909 -- invalid
  Chaetabraeus (Mazureus) Gomy, 1991 -- valid
  Chaetabraeus andrewesi Gomy, 1984 -- valid
  Chaetabraeus bacchusi Gomy, 1984 -- valid
  Chaetabraeus connexus (Cooman, 1935) -- valid
  Chaetabraeus controversus (Cooman, 1935) -- valid
  Chaetabraeus gandhii Gomy, 2009 -- valid
  Chaetabraeus kanaari Gomy, 1992 -- valid
  Chaetabraeus nibouchei Gomy, 1996 -- valid
  Chaetabraeus sabuthomasi Gomy, 2009 -- valid
  Chaetabraeus schawalleri Gomy, 1992 -- valid
  Chaetabraeus streitoi Gomy, 1996 -- valid
  Chaetabraeus tuberosus (Cooman, 1931) -- valid
  Chaetaspis fragilis (Loomis, 1943) -- valid
  Chaetobacanius Gomy, 1977 -- valid
  Chaetobacanius cinghalanus Gomy, 1980 -- valid
  Chaetobacanius papou Gomy, 1977 -- valid
  Chaetobacanius therondi Gomy, 1977 -- valid
  Chaetodontoplus caeruleopunctatus Yasuda and Tominaga, 1976 -- valid
  Chaetomyinae Thomas, 1897 -- valid
  Chaetonotus aequispinosus Schrom, 1972 -- valid
  Chaetonotus angustus Schrom, 1972 -- valid
  Chaetonotus hilarus Schrom, 1972 -- valid
  Chaetonotus jucundus Schrom, 1972 -- invalid
  Chaetonotus modestus Schrom, 1972 -- valid
  Chaetonotus serenus Schrom, 1972 -- valid
  Chaetopelma lymberakisi Chatzaki & Komnenov, 2019 -- valid
  Chaetophractus nationi (Thomas, 1894) -- valid -- Andean Hairy Armadillo
  Chaetophractus vellerosus pannosus (Thomas, 1902) -- valid
  Chalaroderma ocellata (Gilchrist and Thompson, 1908) -- valid -- two-eyed blenny, two-eyed blenny
  Chalceus nigrotaeniatus Jardine in Schomburgk, 1841 -- invalid
  Chalcomys Thomas, 1916 -- invalid
  Chalcoscirtus sinevi Marusik, Fomichev & Vahtera, 2018 -- valid
  Chalinolobus beatrix (Thomas, 1901) -- invalid -- Beatrix's bat
  Chalinolobus egeria (Thomas, 1913) -- invalid -- Bibundi bat
  Chalinolobus nigrogriseus rogersi Thomas, 1909 -- valid
  Chalinolobus rogersi Thomas, 1909 -- invalid
  Chalinolobus variegatus (Tomes, 1861) -- invalid
  Chalybion Dahlbom, 1843 -- valid
  Chalybion bengalense (Dahlbom, 1845) -- valid
  Chalybion zimmermanni Dahlbom, 1843 -- valid
  Chalybion zimmermanni zimmermanni Dahlbom, 1843 -- valid
  Chamaeleo brevicornis tsarafidyi Brygoo and Domergue, 1970 -- invalid
  Characidium pterostictum Gomes, 1947 -- valid
  Charadrius hiaticula psammodromus Salomonsen, 1930 -- valid
  Charinus longitarsus Armas and Palomino-Cárdenas in Armas et al., 2016 -- valid
  Charoxus spinifer Frank in Frank and Thomas, 1996 -- valid
  Chasmocranus brachynema Gomes and Schubart, 1958 -- valid
  Cheiracanthium kazachstanicum Ponomarev, 2007 -- valid
  Cheiromeles jacobsoni Thomas, 1923 -- invalid
  Cheiromeles torquatus jacobsoni Thomas, 1923 -- valid
  Cheiropus Loomis, 1944 -- valid
  Cheiropus plancus Loomis, 1944 -- valid
  Chelaethiops congicus (Nichols and Griscom, 1917) -- valid
  Chelemys Thomas, 1903 -- valid -- Greater Long-clawed Mice
  Chelemys macronyx (Thomas, 1894) -- valid -- Andean Long-clawed Akodont, Andean long-clawed mouse
  Chelemyscus Thomas, 1925 -- invalid
  Chelidonichthys ischyrus Jordan and Thompson, 1914 -- valid
  Cheliones hurrianae collinus Thomas, 1919 -- invalid
  Chelodina burrungandjii Thomson, Kennett and Georges, 2000 -- valid -- Arnhem Snake-necked Turtle, Sandstone Snake-necked Turtle
  Chelodina canni McCord and Thomson, 2002 -- valid -- Cann's Snake-necked Turtle
  Chelomideopsis Romijn, 1920 -- valid
  Chelonarium lecontei Thomson, 1867 -- valid
  Chelostoma bytinskii (Mavromoustakis, 1948) -- valid
  Chelostoma diodon cypriacum (Mavromoustakis, 1951) -- valid
  Chelostoma maidli seidenstueckeri Mavromoustakis, 1954 -- valid
  Cheracebus lucifer (Thomas, 1914) -- valid -- Yellow-handed Titi
  Cheracebus purinus (Thomas, 1927) -- valid -- Rio Purus Titi
  Cheracebus regulus (Thomas, 1927) -- valid -- Juruá Collared Titi
  Chersomanes albofasciata macdonaldi (Winterbottom, 1958) -- valid
  Chevalia carpenteri J. L. Barnard and Thomas, 1987 -- valid
  Chiasmocleis gnoma Canedo, Dixo and Pombal, 2004 -- valid
  Chibchanomys trichotis (Thomas, 1897) -- valid -- Chibchan Ichthyomyine, Chibchan water mouse
  Chikila Kamei, San Mauro, Gower, Van Bocxlaer, Sherratt, Thomas, Babu, Bossuyt, Wilkinson and Biju, 2012 -- valid
  Chikilidae Kamei, San Mauro, Gower, Van Bocxlaer, Sherratt, Thomas, Babu, Bossuyt, Wilkinson and Biju, 2012 -- valid
  Chilaphrodesmus Loomis, 1934 -- valid
  Chilaphrodesmus darlingtoni (Loomis, 1941) -- valid
  Chilaphrodesmus rubellus Loomis, 1934 -- valid
  Chilomys Thomas, 1897 -- valid
  Chilomys instans (Thomas, 1895) -- valid -- Andean Chilomys, Colombian forest mouse
  Chilonycteris davyi fulvus Thomas, 1892 -- invalid
  Chimarocephala pacifica (Thomas, 1873) -- valid
  Chimarrogale phaeura Thomas, 1898 -- valid -- Bornean Water Shrew, Sunda Water Shrew
  Chimarrogale sumatrana (Thomas, 1921) -- valid -- Sumatra Water Shrew, Sumatran Water Shrew
  Chimerella corleone Twomey, Delia and Castroviejo-Fisher, 2014 -- valid
  Chinchillula Thomas, 1898 -- valid
  Chinchillula sahamae Thomas, 1898 -- valid -- Achallo, Altiplano Chinchilla Mouse
  Chionaspis biclavis Comstock, 1883 -- invalid
  Chionaspis biclavis detecta Comstock, 1883 -- invalid
  Chionaspis citri (Comstock, 1881) -- valid
  Chionomys roberti (Thomas, 1906) -- valid -- Robert's Snow Vole, Robert's Vole
  Chiroderma doriae Thomas, 1891 -- valid -- Brazilian big-eyed bat, Brazilian Big-eyed Bat
  Chiromyscus Thomas, 1925 -- valid
  Chiromyscus chiropus (Thomas, 1891) -- valid -- Fea's Tree Rat, Indochinese Chiromyscus
  Chiromyza fulva Nagatomi & Yukawa, 1969 -- valid
  Chiromyza gressitti Nagatomi & Yukawa, 1969 -- valid
  Chiromyza papuae Nagatomi & Yukawa, 1969 -- valid
  Chiromyza sedlaceki Nagatomi & Yukawa, 1969 -- valid
  Chiropodomys major Thomas, 1893 -- valid -- Greater Pencil-tailed Tree Mouse
  Chiropodomys pusillus Thomas, 1893 -- valid -- Lesser Pencil-tailed Tree Mouse
  Chirothrips hamatus Trybom, 1895 -- valid
  Chiruromys Thomas, 1888 -- valid -- Tree Mice
  Chiruromys forbesi Thomas, 1888 -- valid -- Forbes's Chiruromys
  Chiruromys forbesi pulcher Thomas, 1895 -- invalid
  Chiruromys lamia (Thomas, 1897) -- valid -- Broad-headed Chiruromys
  Chiruromys vates (Thomas, 1908) -- valid -- Lesser Chiruromys
  Chitonophora mucronata unicolorata Ikonomov, 1961 -- invalid
  Chloealtis abdominalis (Thomas, 1873) -- valid
  Chlorion bohemanni (Dahlbom, 1845) -- invalid
  Chlorion castaneipes (Dahlbom, 1843) -- invalid
  Chlorion cyaneum Dahlbom, 1843 -- valid
  Chlorion fuliginosum (Dahlbom, 1843) -- invalid
  Chlorion melanopum (Dahlbom, 1843) -- invalid
  Chlorion opacum (Dahlbom, 1845) -- invalid
  Chlorion pelopoeiformis (Dahlbom, 1845) -- invalid
  Chlorion subfuscatum (Dahlbom, 1845) -- invalid
  Chlorocebus tantalus marrensis (Thomas and Hinton, 1923) -- valid -- Jebbel Marra Tantalus
  Chlorochroa dismalia Thomas, 1983 -- valid
  Chlorochroa kanei Buxton and Thomas, 1983 -- valid
  Chlorochroa lineata Thomas, 1983 -- valid
  Chlorochroa norlandi Buxton and Thomas, 1983 -- valid
  Chlorochroa rossiana Buxton and Thomas, 1983 -- valid
  Chlorospingus pileatus diversus Griscom, 1924 -- valid
  Chlorospingus tacarcunae Griscom, 1924 -- valid -- Tacarcuna Bush Tanager, Tacarcuna Bush-Tanager
  Chlorotalpa duthieae (Broom, 1907) -- valid -- Duthie's Golden Mole
  Chlorotalpa sclateri (Broom, 1907) -- valid -- Sclater's Golden Mole
  Chlorotalpa sclateri sclateri (Broom, 1907) -- valid
  Chlorotalpa sclateri shortridgei Broom, 1950 -- valid
  Chlorothraupis carmioli lutescens Griscom, 1927 -- valid
  Chlorothraupis carmioli magnirostris Griscom, 1927 -- valid
  Chodsigoa lamula Thomas, 1912 -- valid -- Lamulate Shrew
  Chodsigoa smithii Thomas, 1911 -- valid -- Smith's Shrew
  Chodsigoa sodalis Thomas, 1913 -- valid -- Lesser Taiwanese Shrew
  Choeras validus (Thomson, 1895) -- valid
  Choerodon cauteroma Gomon and Allen, 1987 -- valid
  Choerodon sugillatum Gomon, 1987 -- valid
  Choeroniscus Thomas, 1928 -- valid
  Choeroniscus godmani (Thomas, 1903) -- valid -- Godman's long-tailed bat, Godman's Long-tongued Bat
  Choeronycteris godmani Thomas, 1903 -- invalid
  Choerops natalensis Gilchrist and Thompson, 1909 -- invalid
  Choloepus didaetylus Thomas, 1893 -- invalid
  Chondracanthus lotellae G. M. Thomson, 1889 -- valid
  Chondrocladia Thomson, 1873 -- valid
  Chondrodesmus allenae Loomis, 1959 -- valid
  Chondrodesmus cairoensis Loomis, 1972 -- valid
  Chondrodesmus pittieri Loomis, 1961 -- valid
  Chondrotropis Loomis, 1936 -- valid
  Chondrotropis niger Loomis, 1936 -- valid
  Chondrotropis pictus Loomis, 1936 -- valid
  Chondrotropis venustus Loomis, 1936 -- valid
  Chordodes cameranonis Montgomery, 1900 -- valid
  Chordodes cubanensis Montgomery, 1898 -- valid
  Chordodes furnessi Montgomery, 1898 -- valid
  Chordodes gordioides Montgomery, 1898 -- invalid
  Chordodes morgani Montgomery, 1898 -- valid
  Chordodes occidentalis Montgomery, 1898 -- invalid
  Chordodes puerilis Montgomery, 1898 -- invalid
  Chorisops maculiala Nagatomi, 1964 -- valid
  Chorisops separata Yang & Nagatomi, 1992 -- valid
  Chorisops unita Yang & Nagatomi, 1992 -- valid
  Chortomys Thomas, 1916 -- invalid
  Chroeomys Thomas, 1916 -- invalid
  Chroeomys jelskii (Thomas, 1894) -- invalid -- Jelski's Altiplano Mouse
  Chromodesmus Loomis, 1976 -- valid
  Chromodesmus granulatus (Loomis, 1966) -- valid
  Chromodesmus planus Loomis, 1976 -- valid
  Chromodesmus viridis Loomis, 1976 -- valid
  Chromodesmus woodruffi Loomis, 1976 -- valid
  Chromogobius zebratus (Kolombatovic, 1891) -- valid -- Kolombatovic's goby
  Chrotogale Thomas, 1912 -- valid
  Chrotogale owstoni Thomas, 1912 -- valid -- Owston's Palm Civet
  Chrotomys Thomas, 1895 -- valid -- Philippine Striped Rats
  Chrotomys silaceus (Thomas, 1895) -- valid -- Blazed Luzon Chrotomys
  Chrotomys whiteheadi Thomas, 1895 -- valid -- Montane Chrotomys
  Chrysantheda appendiculata Romand, 1849 -- invalid
  Chrysantheda subcornuta Romand, 1849 -- invalid
  Chrysoblephus anglicus (Gilchrist and Thompson, 1908) -- valid
  Chrysoblephus puniceus (Gilchrist and Thompson, 1908) -- valid
  Chrysobothris austinii Thomson, 1878 -- invalid
  Chrysobrycon myersi (Weitzman and Thomerson, 1970) -- valid
  Chrysochlora fasciata Thomson, 1869 -- invalid
  Chrysochlora frontalis Thomson, 1869 -- invalid
  Chrysochloridea Broom, 1915 -- valid
  Chrysochlorina fasciata (Thomson, 1869) -- valid
  Chrysochloris visagiei Broom, 1950 -- valid -- Visagie's Golden Mole
  Chrysochroma molliculus Nagatomi, 1975 -- invalid
  Chrysocorythus estherae chaseni (Kinzelbach, Dickinson & Somadikarta, 2009) -- valid
  Chrysomyia annulipes Thomson, 1869 -- invalid
  Chrysospalax villosus dobsoni (Broom, 1918) -- valid
  Chrysospalax villosus leschae (Broom, 1918) -- valid
  Chrysospalax villosus transvaalensis (Broom, 1913) -- valid
  Chthonius globocicae B. Curcic, Dimitrijevic and Tomic, 2011 -- valid
  Chuniodrilus compositus Omodeo, 1964 -- valid
  Ciccaba virgata centralis Griscom, 1929 -- invalid
  Cicindela nevadica makosika Spomer, 2004 -- invalid -- Indian Creek Tiger Beetle
  Cilicaea caniculata (G. Thomson, 1879) -- valid
  Cilunculus Loman, 1908 -- valid
  Cilunculus frontosus Loman, 1908 -- valid
  Cilunculus perspicax Loman, 1908 -- valid
  Cincinnatia fraterna F. G. Thompson, 1968 -- invalid -- creek siltsnail
  Cincinnatia helicogyra F. G. Thompson, 1968 -- invalid -- crystal siltsnail
  Cincinnatia mica F. G. Thompson, 1968 -- invalid -- Ichetucknee siltsnail
  Cincinnatia parva F. G. Thompson, 1968 -- invalid -- pygmy siltsnail
  Cincinnatia petrifons F. G. Thompson, 1968 -- invalid -- Rock Springs siltsnail
  Cincinnatia ponderosa F. G. Thompson, 1968 -- invalid -- ponderous siltsnail
  Cincinnatia wekiwae F. G. Thompson, 1968 -- invalid -- Wekiwa Siltsnail
  Cinclus mexicanus anthonyi Griscom, 1930 -- valid
  Cinnyris chalybeus albilateralis (Winterbottom, 1963) -- invalid
  Cinnyris habessinicus turkanae Someren, 1920 -- valid
  Cinnyris superbus buvuma Someren, 1932 -- valid
  Cinnyris tsavoensis Someren, 1922 -- valid
  Circotettix carlinianus (Thomas, 1870) -- valid
  Circotettix undulatus (Thomas, 1872) -- valid
  Cirolana avida Nunomura, 1988D -- valid
  Cirolana lignicola Nunomura, 1984B -- valid
  Cirolana sadoensis Nunomura, 1981D -- valid
  Cisticola ayresii mauensis Someren, 1922 -- valid
  Cisticola brunnescens nakuruensis Someren, 1922 -- valid
  Cisticola tinniens oreophilus Someren, 1922 -- valid
  Cistugo Thomas, 1912 -- valid
  Cistugo seabrae Thomas, 1912 -- valid -- Angolan Wing-gland Bat
  Cladolabes roxasi (Domantay, 1934) -- valid
  Claravis mondetoura pulchra Griscom, 1930 -- invalid
  Claravis mondetoura salvini Griscom, 1930 -- invalid
  Claravis mondetoura umbrina Griscom, 1930 -- invalid
  Clavellotis Castro-Romero and Baeza-Kuroki, 1984 -- valid
  Claviglis olga Thomas, 1925 -- invalid
  Cleantis tubicola (G. Thomson, 1885) -- valid
  Cleidogona australis Loomis, 1966 -- valid
  Cleidogona austrina (Loomis, 1964) -- valid
  Cleidogona bifurca Loomis, 1974 -- valid
  Cleidogona curvipes (Loomis, 1966) -- valid
  Cleidogona cyclipes Loomis, 1969 -- valid
  Clinoporus biporosus (Gilchrist and Thompson, 1908) -- valid -- ladder clipfish, ladder clipfish
  Clinus brevicristatus Gilchrist and Thompson, 1908 -- valid -- cape kilpfish, cape kilpfish
  Clinus robustus Gilchrist and Thompson, 1908 -- valid -- robust klipfish, robust klipfish
  Clinus striatus Gilchrist and Thompson, 1908 -- invalid -- striped klipfish, striped klipfish
  Clinus taurus Gilchrist and Thompson, 1908 -- valid -- bull klipfish, bull klipfish
  Clinus venustris Gilchrist and Thompson, 1908 -- valid -- speckled klipfish, speckled klipfish
  Clitellaria chikuni Yang & Nagatomi, 1992 -- valid
  Clitellaria crassistilus Yang & Nagatomi, 1992 -- valid
  Clitellaria flavipilosa Yang & Nagatomi, 1992 -- valid
  Clitellaria kunmingana Yang & Nagatomi, 1992 -- valid
  Clitellaria longipilosa Yang & Nagatomi, 1992 -- valid
  Clitellaria mediflava Yang & Nagatomi, 1992 -- valid
  Clitellaria nigra Yang & Nagatomi, 1992 -- valid
  Cloeotis Thomas, 1901 -- valid
  Cloeotis percivali Thomas, 1901 -- valid -- Percival's Short-eared Trident Bat, Percival's Trident Bat
  Cloeotis percivali percivali Thomas, 1901 -- valid
  Clyomys Thomas, 1916 -- valid
  Clyomys laticeps (Thomas, 1909) -- valid -- Broad-headed Spiny Rat
  Clypeodytes procerus Omer-Cooper, 1959 -- valid
  Clytochrysus cavifrons (Thomson, 1870) -- invalid
  Clytochrysus planifrons (Thomson, 1870) -- invalid
  Cnecus Thomson, 1859 -- invalid
  Cnemaspis gracilis (Beddome, 1870) -- valid
  Cnemaspis ornata (Beddome, 1870) -- valid
  Cnemaspis wynadensis (Beddome, 1870) -- valid
  Cobitis arachthosensis Economidis and Nalbant, 1996 -- valid
  Cobitis hellenica Economidis and Nalbant, 1996 -- valid
  Cobitis punctilineata Economidis and Nalbant, 1996 -- valid
  Cobitis stephanidisi Economidis, 1992 -- valid
  Cocalodes thoracicus Szombathy, 1915 -- valid
  Coccoelasma Loomis, 1936 -- valid
  Coccoelasma incisura Loomis, 1936 -- valid
  Cochlearius cochlearius panamensis Griscom, 1926 -- valid
  Cochranella guayasamini Twomey, Delia and Castroviejo-Fisher, 2014 -- valid
  Coeleburia Thomson, 1860 -- invalid
  Coelioxys obtusispina Thomson, 1872 -- valid
  Coelioxys turbinata Krombein, 1953 -- valid
  Coelocrabro Thomson, 1874 -- invalid
  Coelocrabro ambiguus (Dahlbom, 1842) -- invalid
  Coelocrabro barbipes (Dahlbom, 1845) -- invalid
  Coelocrabro carbonarius (Dahlbom, 1839) -- invalid
  Coelocrabro cinxius (Dahlbom, 1839) -- invalid
  Coelocrabro inermis (Thomson, 1870) -- invalid
  Coelosia truncata Lundstrom, 1909 -- valid
  Coelosphaera Thomson, 1873 -- valid
  Coelosphaera (Coelosphaera) Thomson, 1873 -- valid
  Coelostemma pyrgonasta F. G. Thompson, 1988 -- valid -- Bishop Cap tubesnail
  Coelotes antri (Komatsu, 1961) -- valid
  Coelotes cavicola (Komatsu, 1961) -- valid
  Coelotes hexommatus (Komatsu, 1957) -- valid
  Coendou bicolor quichua Thomas, 1899 -- valid
  Coendou bicolor simonsi Thomas, 1902 -- valid
  Coendou rothschildi Thomas, 1902 -- valid -- Rothchild's Porcupine
  Coendou vestitus Thomas, 1899 -- invalid
  Coenosia excisa Thomson, 1869 -- invalid
  Coereba flaveola oblita Griscom, 1923 -- valid
  Colactis Loomis, 1937 -- valid
  Colactis protenta Loomis, 1937 -- valid
  Colactis quadrata Loomis, 1937 -- valid
  Colanthura nigra Nunomura, 1975 -- valid
  Colanthura setouchiensis Nunomura, 1993B -- valid
  Colaptes auratus nanus Griscom, 1934 -- valid
  Coleura seychellensis silhouettae Thomas, 1915 -- valid
  Coleura silhouettae Thomas, 1915 -- invalid
  Colius leucocephalus turneri Someren, 1919 -- valid
  Colius striatus kikuyensis Someren, 1919 -- valid
  Colius striatus mombassicus Someren, 1919 -- valid
  Collapterix Thomson, 1857 -- invalid
  Collartida tanausu Ribes, Oromi and E. Ribes, 1998 -- valid
  Collocalia esculenta albidior Salomonsen, 1983 -- valid
  Collocalia esculenta amethystina Salomonsen, 1983 -- valid
  Collocalia esculenta hypogrammica Salomonsen, 1983 -- valid
  Collocalia esculenta kalili Salomonsen, 1983 -- valid
  Collocalia esculenta manadensis Salomonsen, 1983 -- valid
  Collocalia esculenta misimae Salomonsen, 1983 -- valid
  Collocalia esculenta numforensis Salomonsen, 1983 -- valid
  Collocalia esculenta spilogaster Salomonsen, 1983 -- valid
  Collocalia linchi dedii S. Somadikarta, 1986 -- valid
  Collocalia linchi ripleyi S. Somadikarta, 1986 -- valid
  Colobodesmus crucis Loomis, 1974 -- valid
  Colobus abyssinicus poliurus Thomas, 1901 -- invalid
  Colobus angolensis ruwenzorii Thomas, 1901 -- valid -- Adolf Friedrichs's Angolan Colobus
  Colobus angolensis sharpei Thomas, 1902 -- valid -- Sharpe's Angolan Colobus
  Colobus guereza caudatus Thomas, 1885 -- valid -- Mt. Kilimanjaro Guereza
  Colobus sharpei Thomas, 1902 -- invalid
  Colomascirtus criptico (Coloma, Carvajal-Endara, Dueńas, Paredes-Recalde, Morales-Mite, Almeida-Reinoso et al., 2012) -- invalid
  Colomascirtus princecharlesi (Coloma, Carvajal-Endara, Dueńas, Paredes-Recalde, Morales-Mite, Almeida-Reinoso et al., 2012) -- invalid
  Colomascirtus staufferorum (Duellman and Coloma, 1993) -- invalid
  Colomascirtus tapichalaca (Kizirian, Coloma and Paredes-Recalde, 2003) -- invalid
  Colomys Thomas and Wroughton, 1907 -- valid
  Colomys goslingi Thomas and Wroughton, 1907 -- valid -- African Wading Rat
  Colossendeis articulata Loman, 1908 -- invalid
  Colossendeis dofleini Loman, 1911 -- invalid
  Colostethus awa Coloma, 1995 -- invalid
  Colostethus chalcopis Kaiser, Coloma and Gray, 1994 -- invalid
  Colostethus delatorreae Coloma, 1995 -- invalid
  Colostethus machalilla Coloma, 1995 -- invalid
  Colostethus maquipucuna Coloma, 1995 -- invalid
  Colostethus picacho Ardila-Robayo, Acosta-Galvis and Coloma, 2000 -- invalid
  Colostethus picachos Ardila-Robayo, Acosta-Galvis and Coloma, 2000 -- invalid
  Colostethus toachi Coloma, 1995 -- invalid
  Colostethus wayuu Acosta-Galvis, Cuentas and Coloma, 1999 -- invalid
  Coluber flagellum ruddocki (Brattstrom and Warren, 1953) -- valid -- San Joaquin Coachwhip
  Columbina minuta interrupta (Griscom, 1929) -- valid
  Comanchelus camporum Loomis, 1968 -- valid
  Comanchelus lobatus Loomis, 1968 -- valid
  Compsophis vinckei (Domergue, 1988) -- valid
  Conculus Komatsu, 1940 -- valid
  Conculus lyugadinus Komatsu, 1940 -- valid
  Condylactis Duchassaing de Fombressin and Michelotti, 1864 -- valid
  Conepatus chinga budini Thomas, 1919 -- valid
  Conepatus chinga gibsoni Thomas, 1910 -- valid
  Conepatus chinga inca Thomas, 1900 -- valid
  Conepatus chinga mendosus Thomas, 1921 -- valid
  Conepatus chinga rex Thomas, 1898 -- valid
  Conepatus humboldtii proteus Thomas, 1902 -- valid
  Conepatus semistriatus taxinus Thomas, 1924 -- valid
  Conepatus semistriatus trichurus Thomas, 1905 -- valid
  Conepatus semistriatus zorrino Thomas, 1901 -- valid
  Congrogadoides amplimaculatus Winterbottom, 1980 -- invalid
  Congrogadus amplimaculatus (Winterbottom, 1980) -- valid
  Conilurus melibius Thomas, 1921 -- invalid
  Conirostrum leucogenys panamense (Griscom, 1927) -- valid
  Connochaetes taurinus albojubatus Thomas, 1892 -- valid
  Conochiloides exiguus Ahlstrom, 1938 -- valid
  Conostigmus Dahlbom, 1858 -- valid
  Conostigmus alutaceus (Thomson, 1858) -- valid
  Conostigmus borealis (Thomson, 1858) -- valid
  Conostigmus brachypterus (Thomson, 1858) -- valid
  Conostigmus dimidiatus (Thomson, 1858) -- valid
  Conostigmus frontalis (Thomson, 1858) -- valid
  Conostigmus intermedius (Thomson, 1858) -- valid
  Conostigmus lativentris (Thomson, 1858) -- valid
  Conostigmus norvegicus (Thomson, 1858) -- valid
  Conostigmus obscurus (Thomson, 1858) -- valid
  Conostigmus opacus (Thomson, 1858) -- valid
  Conostigmus pubescens (Thomson, 1858) -- valid
  Conostigmus puncticeps (Thomson, 1858) -- valid
  Conostigmus rugiceps (Thomson, 1858) -- valid
  Conostigmus triangularis (Thomson, 1858) -- valid
  Contarinia catalpae (Comstock, 1881) -- valid -- catalpa midge
  Contopus cinereus rhizophorus (Dwight & Griscom, 1924) -- valid
  Contopus pertinax minor (W. Miller & Griscom, 1925) -- valid
  Conus desmotus Tomlin, 1937 -- invalid
  Convolutriloba longifissura Bartolomaeus and Balzer, 1997 -- valid
  Coomanister scrobipygum (Cooman, 1932) -- invalid
  Coomanister scrobipygus (Cooman, 1932) -- valid
  Copelatus amatolensis Omer-Cooper, 1965 -- valid
  Copelatus ejactus Omer-Cooper, 1965 -- valid
  Copelatus notius Omer-Cooper, 1965 -- valid
  Copelatus piriensis Omer-Cooper, 1965 -- valid
  Copestylum trivittatum Thompson, 1988 -- valid
  Copestylum vittatum Thompson, 1976 -- valid
  Cophura texana Bromley, 1934 -- valid
  Copiphora mucronata Thomas, 1872 -- valid
  Corcyrogobius liechtensteini (Kolombatovic, 1891) -- valid
  Cordillacris occipitalis (Thomas, 1873) -- valid
  Coregonus pollan Thompson, 1835 -- valid
  Coreodrassus semidesertus Ponomarev & Tsvetkov, 2006 -- valid
  Corisa cavifrons Thomson, 1869 -- invalid
  Corisa laevis Thomson, 1869 -- invalid
  Corixa dentipes (Thomson, 1869) -- valid
  Cornucalanus chelifer (I. C. Thompson, 1903) -- valid
  Corrigia Shtrom, 1940 -- valid
  Corticalinus Gomy, 2004 -- valid
  Corvira bidens Thomas, 1915 -- invalid
  Corynosoma obtuscens Lincicome, 1943 -- valid
  Coryphaenoides ariommus Gilbert and Thompson in Thompson, 1916 -- valid
  Coryphasia cardoso Santos & Romero, 2007 -- valid
  Coryphasia monteverde Santos & Romero, 2007 -- valid
  Coryphopterus personatus (Jordan and Thompson, 1905) -- valid -- gobio enmascarado, gobio mapache, masked goby
  Corypus Loomis & Schmitt, 1971 -- valid
  Corypus cochlearis Loomis & Schmitt, 1971 -- valid
  Corythomantis galeata Pombal, Menezes, Fontes, Nunes, Rocha and Van Sluys, 2012 -- valid
  Cosmochthonius australicus Womersley, 1945 -- valid
  Cosmochthonius pallidus Lombardini, 1961 -- valid
  Cosmopepla bimaculata (Thomas, 1865) -- invalid
  Cosmosycanus Ishikawa and Tomokuni, 2004 -- valid
  Cossyphus nigromaculatus Gilchrist and Thompson, 1908 -- invalid
  Cotesia arctica (Thomson, 1895) -- valid
  Cotesia brachycera (Thomson, 1895) -- valid
  Cotesia pilicornis (Thomson, 1895) -- valid
  Cotyloplana megalophthalma (Loman, 1890) -- invalid
  Coxicerberus kiiensis (Nunomura, 1973) -- valid
  Crabro aenescens Dahlbom, 1839 -- invalid
  Crabro alatulus Dahlbom, 1839 -- invalid
  Crabro ambiguus Dahlbom, 1842 -- invalid
  Crabro annulus Dahlbom, 1839 -- invalid
  Crabro barbipes Dahlbom, 1845 -- invalid
  Crabro capito Dahlbom, 1845 -- invalid
  Crabro carbonarius Dahlbom, 1839 -- invalid
  Crabro cavifrons Thomson, 1870 -- invalid
  Crabro cinxius Dahlbom, 1839 -- invalid
  Crabro congener Dahlbom, 1844 -- invalid
  Crabro frater (Dahlbom, 1844) -- invalid
  Crabro henrici Krombein in Muesebeck et al., 1951 -- valid
  Crabro inermis Thomson, 1870 -- invalid
  Crabro interruptus Dahlbom, 1845 -- invalid
  Crabro juniatae Krombein, 1938 -- invalid
  Crabro kollari Dahlbom, 1845 -- invalid
  Crabro loewi Dahlbom, 1845 -- valid
  Crabro megerlei Dahlbom, 1845 -- invalid
  Crabro monstrosus Dahlbom, 1845 -- invalid
  Crabro mucronatus Thomson, 1870 -- invalid
  Crabro planifrons Thomson, 1870 -- invalid
  Crabro podagricus congener Dahlbom, 1844 -- invalid
  Crabro quinquemaculatus Dahlbom, 1838 -- invalid
  Crabro rotundarius Dahlbom, 1838 -- invalid
  Crabro rugifer Dahlbom, 1845 -- invalid
  Crabro shuckardi Dahlbom, 1839 -- invalid
  Crabro subulatus Dahlbom, 1845 -- invalid
  Crabro tischbeini Dahlbom, 1850 -- invalid
  Crabro vanderlindeni Dahlbom, 1839 -- invalid
  Crabro westermanni (Dahlbom, 1844) -- invalid
  Crassatellites gibbsi Tuomey and Holmes, 1856 -- invalid
  Crataraea Thomson, 1858 -- valid
  Crateritheca insignis (Thompson, 1879) -- valid
  Crateritheca novazelandiae (Thompson, 1879) -- valid
  Craterodesmus Loomis, 1941 -- valid
  Craterodesmus ovatus Loomis, 1941 -- valid
  Crateromys Thomas, 1895 -- valid -- Bushy-tailed Cloud Rats
  Craterostigmus crabilli Edgecombe and Giribet, 2008 -- valid
  Cratogeomys merriami (Thomas, 1893) -- valid -- Merriam's Pocket Gopher
  Cratogeomys merriami merriami (Thomas, 1893) -- invalid
  Cratypedes neglectus (Thomas, 1870) -- valid
  Craurothrix Thomas, 1896 -- invalid
  Crematogaster laestrygon submaura Lomnicki, 1925 -- valid
  Cremnochorites capensis (Gilchrist and Thompson, 1908) -- valid
  Cremnomys australis Thomas, 1916 -- invalid
  Cremnomys australis siva Thomas, 1916 -- invalid
  Cremnomys blanfordi (Thomas, 1881) -- invalid
  Cremnomys medius Thomas, 1916 -- invalid
  Cremnomys medius caenosus Thomas, 1916 -- invalid
  Cremnomys medius rajput Thomas, 1916 -- invalid
  Crenilabrus microstoma Thompson, 1837 -- invalid
  Crenilabrus multidentatus Thompson, 1837 -- invalid
  Cricetiscus Thomas, 1917 -- invalid
  Cricetomys ansorgei Thomas, 1904 -- valid -- Southern Giant Pouched Rat
  Cricetomys buchanani Thomas and Hinton, 1921 -- invalid
  Cricetomys gambianus adventor Thomas and Wroughton, 1907 -- invalid
  Cricetomys gambianus cunctator Thomas and Wroughton, 1908 -- invalid
  Cricetomys gambianus elgonis Thomas, 1910 -- invalid
  Cricetulus alticola Thomas, 1917 -- valid -- Ladak Dwarf Hamster, Short-tailed Tibetan Hamster, Tibetan dwarf hamster
  Cricetulus alticola tibetanus Thomas and Hinton, 1922 -- invalid
  Cricetulus andersoni Thomas, 1908 -- invalid
  Cricetulus bedfordiae Thomas, 1908 -- invalid
  Cricetulus griseus fumatus Thomas, 1909 -- invalid
  Cricetulus migratorius griseiventris Thomas, 1917 -- invalid
  Cricetulus migratorius vernula Thomas, 1917 -- invalid
  Cricetulus mongolicus Thomas, 1888 -- invalid
  Cricetulus nestor Thomas, 1907 -- invalid
  Cricetulus triton incanus Thomas, 1908 -- invalid
  Crocidura baluensis Thomas, 1898 -- valid -- Kinabalu Shrew
  Crocidura bottegi Thomas, 1898 -- valid -- Bottego's Shrew
  Crocidura caspica Thomas, 1907 -- valid -- Caspian Shrew
  Crocidura cinderella Thomas, 1911 -- valid -- Cinderella Shrew
  Crocidura crossei Thomas, 1895 -- valid -- Crosse's Shrew
  Crocidura fuliginosa dracula Thomas, 1912 -- valid
  Crocidura fumosa Thomas, 1904 -- valid -- Smoky White-toothed Shrew
  Crocidura goliath Thomas, 1906 -- valid -- Goliath Shrew
  Crocidura goliath goliath Thomas, 1906 -- valid
  Crocidura hildegardeae Thomas, 1904 -- valid -- Hildegarde's Shrew
  Crocidura hispida Thomas, 1913 -- valid -- Andaman Spiny Shrew
  Crocidura horsfieldii (Tomes, 1856) -- valid -- Horsfield's Shrew
  Crocidura jacksoni Thomas, 1904 -- valid -- Jackson's Shrew
  Crocidura maurisca Thomas, 1904 -- valid -- Dark Shrew, Gracile Naked-tailed Shrew
  Crocidura monax Thomas, 1910 -- valid -- Kilimanjaro Shrew, Rombo Shrew
  Crocidura montis Thomas, 1906 -- valid -- Montane White-toothed Shrew
  Crocidura nanilla Thomas, 1909 -- valid -- Savanna Dwarf Shrew, Tiny White-toothed Shrew
  Crocidura niobe Thomas, 1906 -- valid -- Niobe's Shrew, Stony Shrew
  Crocidura olivieri darfurea Thomas and Hinton, 1923 -- valid
  Crocidura olivieri spurelli Thomas, 1910 -- valid
  Crocidura silacea Thomas, 1895 -- valid -- Lesser Gray-brown Musk Shrew
  Crocidura smithii Thomas, 1895 -- valid -- Desert Musk Shrew
  Crocidura smithii smithii Thomas, 1895 -- valid
  Crocidura somalica Thomas, 1895 -- valid -- Somali Shrew
  Crocidura trichura Dobson in Thomas, 1889 -- valid -- Christmas Island Shrew
  Crossarchus alexandri Thomas and Wroughton, 1907 -- valid -- Alexander's cusimanse, Alexander's Kusimanse
  Crossarchus ansorgei Thomas, 1910 -- valid -- Angolan Kusimanse, Ansorge's cusimanse
  Crossarchus ansorgei ansorgei Thomas, 1910 -- valid
  Crossarchus ansorgei nigricolor Colyn and Van Rompaey, 1990 -- valid
  Crossocerus ambiguus (Dahlbom, 1842) -- invalid -- square-headed wasp
  Crossocerus barbipes (Dahlbom, 1845) -- valid
  Crossocerus carbonarius (Dahlbom, 1839) -- invalid
  Crossocerus cinxius (Dahlbom, 1839) -- valid
  Crossocerus cinxius cinxius (Dahlbom, 1839) -- valid
  Crossocerus congener (Dahlbom, 1844) -- valid
  Crossocerus inermis (Thomson, 1870) -- invalid
  Crossocerus mucronatus (Thomson, 1870) -- invalid
  Crossocerus planifemur Krombein, 1952 -- valid
  Crossocerus scaposus Dahlbom, 1844 -- invalid
  Crossocerus socius Thomson, 1870 -- invalid
  Crossocerus spangleri Krombein, 1962 -- invalid
  Crossocerus subulatus (Dahlbom, 1845) -- valid
  Crossocerus vicinus Dahlbom, 1842 -- invalid
  Crossodactylus caramaschii Bastos and Pombal, 1995 -- valid
  Crossomys Thomas, 1907 -- valid
  Crossomys moncktoni Thomas, 1907 -- valid -- Earless New Guinea Water Rat
  Crotonia alpina Colloff & Perdomo, 2009 -- valid
  Crotonia blacki Colloff & Perdomo, 2009 -- valid
  Crotonia cornuta Colloff & Perdomo, 2009 -- valid
  Crotonia gadubanudi Colloff & Perdomo, 2009 -- valid
  Crotonia momitoi Colloff & Perdomo, 2009 -- valid
  Crotonia victoriae Colloff & Perdomo, 2009 -- valid
  Crumomyia pilosa Norrbom, 1985 -- valid
  Crunomys Thomas, 1897 -- valid -- Philippine Shrew Rats
  Crunomys fallax Thomas, 1897 -- valid -- Luzon Shrew Mouse
  Crunomys melanius Thomas, 1907 -- valid -- Mindanao Shrew Mouse
  Cruranthura Thomson, 1946 -- valid
  Cruranthura simplicia Thomson, 1946 -- valid
  Cryptarchinae C. G. Thomson, 1859 -- valid
  Cryptocelides samoensis Palombi, 1923 -- valid
  Cryptocentrus yatsui Tomiyama, 1936 -- valid
  Cryptochloris wintoni (Broom, 1907) -- valid -- De Winton's Golden Mole
  Cryptodacus lopezi Norrbom, 1994 -- valid
  Cryptodacus ornatus Norrbom, 1994 -- valid
  Cryptodacus parkeri Norrbom, 1994 -- valid
  Cryptodacus quirozi Norrbom, 1994 -- valid
  Cryptodacus tigreroi Norrbom, 1994 -- valid
  Cryptolestes dissimulatus Thomas, 1988 -- valid
  Cryptolestes dybasi Thomas, 1988 -- valid
  Cryptomalus torquisulcus (Cooman, 1937) -- valid
  Cryptomys beirae (Thomas and Wroughton, 1907) -- invalid
  Cryptomys darlingi (Thomas, 1895) -- valid -- Darling's Mole-rat
  Cryptomys foxi (Thomas, 1911) -- valid -- Nigerian Mole-rat
  Cryptomys hottentotus talpoides (Thomas and Schwann, 1906) -- invalid
  Cryptomys hottentotus whytei Thomas, 1897 -- valid
  Cryptomys mechowi ansorgei (Thomas and Wroughton, 1905) -- invalid
  Cryptomys mechowi mellandi (Thomas, 1906) -- valid
  Cryptomys ochraceocinereus kummi (Thomas, 1911) -- invalid
  Cryptomys ochraceocinereus lechei (Thomas, 1895) -- invalid
  Cryptonychus proboscideus Thomson, 1858 -- valid
  Cryptophagus corticinus Thomson, 1863 -- valid
  Cryptophagus latens Woodroffe and Coombs, 1961 -- valid
  Cryptophagus nobilis Woodroffe and Coombs, 1961 -- valid
  Cryptophagus peregrinus Woodroffe and Coombs, 1961 -- valid
  Cryptophagus stromus Woodroffe and Coombs, 1961 -- valid
  Cryptophagus varus Woodroffe and Coombs, 1961 -- valid -- sigmoid fungus beetle
  Cryptophialus unguiculus Tomlinson, 1969 -- valid
  Cryptops camoowealensis Edgecombe, 2006 -- valid
  Cryptops roeplainsensis Edgecombe, 2005 -- valid
  Cryptopygus cognatus (Folsom, 1937) -- invalid
  Cryptopygus constrictus (Folsom, 1937) -- valid
  Cryptopygus loftyensis (Womersley, 1934) -- valid
  Cryptopygus pilosus (Womersley, 1934) -- valid
  Cryptopygus tasmaniensis Womersley, 1942 -- valid
  Cryptopygus tenelloides (Folsom, 1937) -- invalid
  Cryptothylax Laurent and Combaz, 1950 -- valid
  Cryptotis Pomel, 1848 -- valid -- small-eared shrews
  Cryptotis equatoris (Thomas, 1912) -- valid -- Ecuadorean Small-eared Shrew
  Cryptotis medellinia Thomas, 1921 -- valid -- Medellín Small-eared Shrew
  Cryptotis meridensis (Thomas, 1898) -- valid -- Merida Small-eared Shrew
  Crypturellus boucardi costaricensis (Dwight & Griscom, 1924) -- valid
  Ctenacis Compagno, 1973 -- valid
  Ctenioschelus Romand, 1840 -- valid
  Ctenioschelus goryi (Romand, 1840) -- valid
  Ctenodactylus vali Thomas, 1902 -- valid -- Val's Gundi
  Ctenomys azarae Thomas, 1903 -- valid -- Azara's Tuco-tuco
  Ctenomys bergi Thomas, 1902 -- valid -- Berg's Tuco-tuco
  Ctenomys budini Thomas, 1913 -- valid -- Budin's Tuco-tuco
  Ctenomys budini barbarus (Thomas, 1921) -- valid
  Ctenomys budini budini Thomas, 1913 -- valid
  Ctenomys coludo Thomas, 1920 -- valid -- Puntilla Tuco-tuco
  Ctenomys dorsalis Thomas, 1900 -- valid -- Black-backed Tuco-tuco
  Ctenomys emilianus Thomas and St. Leger, 1926 -- valid -- Emilio's Tuco-tuco
  Ctenomys famosus Thomas, 1920 -- valid -- Famatina Tuco-tuco
  Ctenomys fochi Thomas, 1919 -- valid -- Foch's Tuco-tuco
  Ctenomys fodax Thomas, 1910 -- valid -- Lago Blanco Tuco-tuco
  Ctenomys frater Thomas, 1902 -- valid -- Reddish Tuco-tuco
  Ctenomys frater frater Thomas, 1902 -- valid
  Ctenomys frater mordosus (Thomas, 1926) -- valid
  Ctenomys goodfellowi Thomas, 1921 -- valid -- Goodfellow's Tuco-tuco
  Ctenomys haigi Thomas, 1917 -- valid -- Haig's Tuco-tuco
  Ctenomys haigi haigi Thomas, 1917 -- valid
  Ctenomys haigi lentulus Thomas, 1919 -- valid
  Ctenomys johannis Thomas, 1921 -- valid -- San Juan Tuco-tuco
  Ctenomys juris Thomas, 1920 -- valid -- Jujuy Tuco-tuco
  Ctenomys knighti Thomas, 1919 -- valid -- Catamarca Tuco-tuco
  Ctenomys latro Thomas, 1918 -- valid -- Mottled Tuco-tuco
  Ctenomys lewisi Thomas, 1926 -- valid -- Lewis' Tuco-tuco
  Ctenomys occultus Thomas, 1920 -- valid -- Furtive Tuco-tuco
  Ctenomys opimus luteolus Thomas, 1900 -- valid
  Ctenomys opimus nigriceps Thomas, 1900 -- valid
  Ctenomys perrensi Thomas, 1896 -- valid -- Goya Tuco-tuco
  Ctenomys perrensis Thomas, 1896 -- invalid
  Ctenomys pontifex Thomas, 1918 -- valid -- San Luis Tuco-tuco
  Ctenomys porteousi Thomas, 1916 -- valid -- Porteous's Tuco-tuco
  Ctenomys saltarius Thomas, 1912 -- valid -- Salta Tuco-tuco
  Ctenomys steinbachi Thomas, 1907 -- valid -- Steinbach's Tuco-tuco
  Ctenomys sylvanus Thomas, 1919 -- valid -- Forest Tuco-tuco
  Ctenomys sylvanus sylvanus Thomas, 1919 -- valid
  Ctenomys sylvanus utibilis (Thomas, 1920) -- valid
  Ctenomys talarum Thomas, 1898 -- valid -- Los Talas Tuco-tuco
  Ctenomys talarum antonii Thomas, 1910 -- valid
  Ctenomys talarum recessus (Thomas, 1912) -- valid
  Ctenomys talarum talarum Thomas, 1898 -- valid
  Ctenomys tuconax Thomas, 1925 -- valid -- Robust Tuco-tuco
  Ctenomys tucumanus Thomas, 1900 -- valid -- Tucumán Tuco-tuco
  Ctenomys tulduco Thomas, 1921 -- valid -- Sierra Tontal Tuco-tuco
  Ctenomys viperinus Thomas, 1926 -- valid -- Vipos Tuco-tuco
  Ctenopoma maculatum Thominot, 1886 -- valid
  Cubatyphlops anchaurus (Thomas and Hedges, 2007) -- valid -- Maisi Blindsnake
  Cubatyphlops anousius (Thomas and Hedges, 2007) -- valid -- Cuban Pallid Blindsnake
  Cubatyphlops arator (Thomas and Hedges, 2007) -- valid -- Cuban Giant Blindsnake
  Cubatyphlops contorhinus (Thomas and Hedges, 2007) -- valid -- Cuban Short-nosed Blindsnake
  Cubatyphlops epactius (Thomas, 1968) -- valid -- Cayman Brac Blindsnake
  Cubatyphlops golyathi (Dominguez and Moreno, 2009) -- valid -- Goliath Blindsnake
  Cubatyphlops notorachius (Thomas and Hedges, 2007) -- valid -- Imias Blindsnake
  Cubatyphlops paradoxus (Thomas, 1968) -- valid -- Great Inagua Slender Blindsnake
  Cubatyphlops perimychus (Thomas and Hedges, 2007) -- valid -- Guantanamo Bay Blindsnake
  Cubatyphlops satelles (Thomas and Hedges, 2007) -- valid -- Cienfuegos Blindsnake
  Cubodesmus prominens Loomis, 1938 -- valid
  Cubophis cantherigerus pepei (Schwartz and Thomas, 1970) -- valid
  Cucumaria brunnea (Forbes in Thompson, 1840) -- invalid
  Cucumaria hyndmanni (Thompson, 1840) -- invalid
  Cucumaria manoelina Tommasi, 1971 -- invalid
  Culex incidens Thomson, 1869 -- invalid
  Culex lucifugus Komp, 1936 -- valid
  Culex opisthopus Komp, 1926 -- invalid
  Culiseta incidens (Thomson, 1869) -- valid
  Cumanotus fernaldi T. E. Thompson and G. H. Brown, 1984 -- valid -- polyp aeolis
  Cuniculus sierrae (Thomas, 1905) -- invalid
  Curidia Thomas, 1983 -- valid
  Curidia debrogania Thomas, 1983 -- valid
  Cyanocitta stelleri suavis W. Miller & Griscom, 1925 -- valid
  Cyanocorax melanocyaneus chavezi (W. Miller & Griscom, 1925) -- valid
  Cyathura higoensis Nunomura, 1977 -- valid
  Cyathura kikuchii Nunomura, 1977 -- valid
  Cyathura muromiensis Nunomura, 1974 -- valid
  Cyathura omorii Nunomura, 1992 -- valid
  Cyathura omorii Nunomura, 1992 -- invalid
  Cybaeus akaanaensis (Komatsu, 1968) -- valid
  Cybaeus anaiwaensis (Komatsu, 1968) -- valid
  Cybaeus ashikitaensis (Komatsu, 1968) -- valid
  Cybaeus fuujinensis (Komatsu, 1968) -- valid
  Cybaeus jaanaensis Komatsu, 1968 -- valid
  Cybaeus kirigaminensis Komatsu, 1963 -- valid
  Cybaeus kiuchii Komatsu, 1965 -- valid
  Cybaeus kompiraensis (Komatsu, 1968) -- valid
  Cybaeus nichikoensis (Komatsu, 1968) -- valid
  Cybaeus nishikawai (Komatsu, 1968) -- valid
  Cybaeus obedientiarius Komatsu, 1963 -- valid
  Cybaeus ryunoiwayaensis Komatsu, 1968 -- valid
  Cybaeus ryusenensis (Komatsu, 1968) -- valid
  Cybaeus sanctus (Komatsu, 1942) -- valid
  Cybaeus senzokuensis (Komatsu, 1968) -- valid
  Cybaeus shingenni Komatsu, 1968 -- valid
  Cybaeus shinkaii (Komatsu, 1970) -- valid
  Cybaeus takasawaensis (Komatsu, 1970) -- valid
  Cybaeus zenifukiensis (Komatsu, 1968) -- valid
  Cyclargus thomasi bethunebakeri (W. Comstock and Huntington, 1943) -- valid
  Cyclarhis gujanensis nicaraguae W. Miller & Griscom, 1925 -- valid
  Cyclaspis bacescui Omholt and Heard, 1982 -- valid
  Cyclemys enigmatica Fritz, Guicking, Auer, Sommer, Wink and Hundsdörfer, 2008 -- valid -- Enigmatic Leaf Turtle
  Cyclemys fusca Fritz, Guicking, Auer, Sommer, Wink and Hundsdörfer, 2008 -- valid -- Myanmar Brown Leaf Turtle
  Cyclemys gemeli Fritz, Guicking, Auer, Sommer, Wink and Hundsdörfer, 2008 -- valid -- Assam Leaf Turtle
  Cyclobacanius aequatorialis Yélamos and Gomy, 1993 -- valid
  Cyclobacanius andrei Yélamos and Gomy, 1993 -- valid
  Cyclobacanius ashanti Yélamos and Gomy, 1993 -- valid
  Cyclobacanius bertiae Yélamos and Gomy, 1993 -- valid
  Cyclobacanius burgeoni Yélamos and Gomy, 1993 -- valid
  Cyclobacanius caesaris Yélamos and Gomy, 1993 -- valid
  Cyclobacanius depressus Yélamos and Gomy, 1993 -- valid
  Cyclobacanius endroedyyoungai Yélamos and Gomy, 1993 -- valid
  Cyclobacanius ethiopicus Yélamos and Gomy, 1993 -- valid
  Cyclobacanius feai Yélamos and Gomy, 1993 -- valid
  Cyclobacanius ghanaensis Yélamos and Gomy, 1993 -- valid
  Cyclobacanius hergei Yélamos and Gomy, 1993 -- valid
  Cyclobacanius hiekei Yélamos and Gomy, 1993 -- valid
  Cyclobacanius martini Yélamos and Gomy, 1993 -- valid
  Cyclobacanius merkli Yélamos and Gomy, 1993 -- valid
  Cyclobacanius morenoi (Yélamos and Gomy, 1991) -- valid
  Cyclobacanius speculifer Yélamos and Gomy, 1993 -- valid
  Cyclobacanius teresae (Yélamos and Gomy, 1991) -- valid
  Cyclobacanius vinyolasi Yélamos and Gomy, 1993 -- valid
  Cyclobacanius xavieri Yélamos and Gomy, 1993 -- valid
  Cyclobacanius zairensis Yélamos and Gomy, 1993 -- valid
  Cyclocarcina Komatsu, 1942 -- valid
  Cyclocarcina floronoides Komatsu, 1942 -- valid
  Cyclocarcina floronoides floronoides Komatsu, 1942 -- valid
  Cyclocarcina linyphoides (Komatsu, 1960) -- valid
  Cyclopes catellus Thomas, 1928 -- valid
  Cyclopes didactylus catellus Thomas, 1928 -- invalid
  Cyclopes didactylus eva Thomas, 1902 -- invalid
  Cyclopes didactylus ida Thomas, 1900 -- invalid
  Cyclopes ida Thomas, 1900 -- valid
  Cyclopsitta diophthalma (Hombron & Jacquinot, 1841) -- valid -- Double-eyed Fig Parrot
  Cyclopsitta diophthalma diophthalma (Hombron & Jacquinot, 1841) -- valid
  Cyclopsodesmus Loomis, 1964 -- valid
  Cyclopsodesmus geniculatus Loomis, 1964 -- valid
  Cyclopsodesmus octosetosus Loomis, 1964 -- valid
  Cyclopsodesmus scaurus Loomis, 1964 -- valid
  Cylindrogonus Loomis, 1964 -- valid
  Cylindrogonus copiosus Loomis, 1964 -- valid
  Cylindrogonus tumidus Loomis, 1974 -- valid
  Cylindromus Loomis, 1977 -- valid
  Cylindromus uniporus Loomis, 1977 -- valid
  Cynedesmus trinus Loomis, 1959 -- valid
  Cynedesmus varilobatus Loomis, 1936 -- valid
  Cynictis penicillata cinderella Thomas, 1927 -- valid
  Cynictis penicillata pallidior Thomas and Schwann, 1904 -- valid
  Cynomops Thomas, 1920 -- valid
  Cynomops abrasus cerastes (Thomas, 1901) -- valid
  Cynomops abrasus mastivus (Thomas, 1911) -- valid
  Cynomops paranus (Thomas, 1901) -- valid -- Brown Dog-faced Bat
  Cynopterus blanfordi Thomas, 1891 -- invalid
  Cynopterus harpax Thomas and Wroughton, 1909 -- invalid
  Cynopterus horsfieldii harpax Thomas and Wroughton, 1909 -- valid
  Cynopterus maculatus Thomas, 1893 -- invalid
  Cynopterus spadiceus Thomas, 1890 -- invalid
  Cyphagogus cyrtotrachelus (J. Thomson, 1857) -- valid
  Cyphanthidium sheppardi (Mavromoustakis, 1937) -- valid
  Cyphoderus similis Folsom, 1927 -- valid
  Cyphotylus Loomis, 1936 -- valid
  Cyphotylus prolatus Loomis, 1936 -- valid
  Cypselurus hiraii Abe in Tomiyama and Abe, 1953 -- valid
  Cypselurus starksi Abe in Tomiyama and Abe, 1953 -- valid
  Cypturus perroti Cooman, 1941 -- valid
  Cyrtaphe Loomis, 1936 -- valid
  Cyrtaphe alternata Loomis, 1936 -- valid
  Cyrtaphe continuata Loomis, 1936 -- valid
  Cyrtaphe domingensis Loomis, 1941 -- valid
  Cyrtaphe lobipes Loomis, 1936 -- valid
  Cyrtinini Thomson, 1864 -- valid
  Cyrtodactylus collegalensis (Beddome, 1870) -- invalid
  Cyrtodactylus dumnuii Bauer, Kunya, Sumontha, Niyomwan, Pauwels, Chanhome and Kunya, 2010 -- valid -- Dumnui's bent toed gecko
  Cyrtodactylus erythrops Bauer, Kunya, Sumontha, Niyomwan, Panitvong, Pauwels, Chanhome and Kunya, 2009 -- valid
  Cyrtodactylus nebulosus (Beddome, 1870) -- valid
  Cyrtodactylus thirakhupti Pauwels, Bauer, Sumontha and Chanhome, 2004 -- valid
  Cyrtodesmus bifurcus Loomis, 1964 -- valid
  Cyrtodesmus confluentus Loomis, 1964 -- valid
  Cyrtodesmus coronatus Loomis, 1964 -- valid
  Cyrtodesmus dentatus Loomis, 1964 -- valid
  Cyrtodesmus depilis Loomis, 1964 -- valid
  Cyrtodesmus depressus Loomis, 1974 -- valid
  Cyrtodesmus hispidulosus Loomis, 1964 -- valid
  Cyrtodesmus humerosus Loomis, 1974 -- valid
  Cyrtodesmus laticaudatus Loomis, 1972 -- valid
  Cyrtodesmus lobatus Loomis, 1974 -- valid
  Cyrtodesmus lyrapes Loomis, 1964 -- valid
  Cyrtodesmus macrosetosus Loomis, 1964 -- valid
  Cyrtodesmus mundus Loomis, 1964 -- valid
  Cyrtodesmus palliatus Loomis, 1972 -- valid
  Cyrtodesmus quadridens Loomis, 1972 -- valid
  Cyrtoneura quadrisetosa Thomson, 1869 -- invalid
  Cyrtoneura recurva Thomson, 1869 -- invalid
  Cyrtopogon tenuis Bromley, 1924 -- valid
  Cyttarops Thomas, 1913 -- valid
  Cyttarops alecto Thomas, 1913 -- valid -- short-eared bat, Short-eared Bat
  Dacnomys Thomas, 1916 -- valid
  Dacnomys millardi Thomas, 1916 -- valid -- Large-toothed Rat, Millard's Dacnomys, Millard's Rat
  Dacnomys wroughtoni Thomas, 1922 -- invalid
  Dactylomys dactylinus canescens Thomas, 1912 -- valid
  Dactylopsila trivirgata melampus Thomas, 1908 -- valid
  Dactylopsila trivirgata picata Thomas, 1908 -- valid
  Dactylotum bicolor pictum (Thomas, 1870) -- valid
  Dahlgrenius aemulator Gomy and Vienna, 1997 -- valid
  Dahlgrenius alternus Gomy and Vienna, 1997 -- valid
  Dahlgrenius balancai Gomy and Vienna, 1997 -- valid
  Dahlgrenius camerunus Gomy, 2011 -- valid
  Dahlgrenius coletteae Gomy and Vienna, 1997 -- valid
  Dahlgrenius lipsae Gomy, 2011 -- valid
  Dahlgrenius mazuri Gomy and Vienna, 1997 -- valid
  Dahlgrenius ouahigouyaensis Gomy and Vienna, 1997 -- valid
  Dahlgrenius vicinus Gomy and Vienna, 1997 -- valid
  Dahlgrenius viridis Gomy and Vienna, 1997 -- valid
  Dallinella Thomson, 1915 -- valid
  Damaeus foroliviensis (Lombardini, 1943) -- valid
  Damaliscus P. L. Sclater and Thomas, 1894 -- valid -- sassabies
  Danascelinae Tomaszewska, 2000 -- valid
  Danascelis Tomaszewska, 1999 -- valid
  Danascelis elongata Tomaszewska, 1999 -- valid
  Darlingtonia haetiana perfector Schwartz and Thomas, 1965 -- invalid
  Darlingtoniella Loomis, 1938 -- valid
  Darlingtoniella provecta Loomis, 1938 -- valid
  Dasyatis margaritella Compagno and Roberts, 1984 -- valid
  Dasydytes bisetosus Thompson, 1891 -- invalid
  Dasyhelea oppressa Thomsen, 1935 -- valid
  Dasyhelea subcaerulea Thomsen, 1935 -- invalid
  Dasyhelea traverae Thomsen, 1935 -- valid
  Dasymys foxi Thomas, 1912 -- valid -- Fox's Dasymys
  Dasymys medius Thomas, 1906 -- invalid
  Dasymys montanus Thomas, 1906 -- valid -- Ruwenzori Dasymys
  Dasyprocta azarae catrinae Thomas, 1917 -- invalid
  Dasyprocta coibae Thomas, 1902 -- valid -- Coiban Agouti
  Dasyprocta kalinowskii Thomas, 1897 -- valid -- Kalinowski's Agouti
  Dasyprocta leporina lunaris Thomas, 1917 -- valid
  Dasyprocta leporina maraxica Thomas, 1923 -- valid
  Dasyprocta punctata boliviae Thomas, 1917 -- valid
  Dasyprocta punctata pandora Thomas, 1917 -- valid
  Dasyprocta punctata yungarum Thomas, 1910 -- valid
  Dasyprocta ruatanica Thomas, 1901 -- valid -- Roatán Island Agouti
  Dasyprocta rubrata Thomas, 1898 -- invalid
  Dasyproctus frater (Dahlbom, 1844) -- valid
  Dasyproctus immaculatus Krombein, 1949 -- invalid
  Dasyproctus westermanni (Dahlbom, 1844) -- valid
  Dasyproctus westermanni westermanni (Dahlbom, 1844) -- valid
  Dasypterus ega argentinus Thomas, 1901 -- invalid
  Dasypterus ega fuscatus Thomas, 1901 -- invalid
  Dasypterus ega panamensis Thomas, 1901 -- invalid
  Dasypterus ega xanthinus Thomas, 1897 -- invalid
  Dasypus kappleri pastasae (Thomas, 1901) -- valid
  Dasyscias F. G. Thompson and Hershler, 1991 -- valid
  Dasyscias franzi F. G. Thompson and Hershler, 1991 -- valid -- Shaggy Ghostsnail
  Debora forficata (J. Thomson, 1858) -- valid
  Decodon melasma Gomon, 1974 -- valid -- blackspot wrasse, viejita manchada
  Deconychura longicauda darienensis Griscom, 1929 -- valid
  Degallierister Gomy, 2001 -- valid
  Degallierister barberoi Gomy, 2001 -- valid
  Degallierister diquis Gomy, 2013 -- valid
  Degallierister hielkemai Gomy, 2013 -- valid
  Degallierister penatii Gomy, 2001 -- valid
  Degallierister surinamensis Gomy, 2013 -- valid
  Degamaea tenuis (Folsom, 1937) -- valid
  Deidamia Thomson, 1873 -- invalid
  Delomys Thomas, 1917 -- valid -- Atlantic Forest Rats
  Delomys collinus Thomas, 1917 -- invalid -- Montane Delomys
  Delomys sublineatus (Thomas, 1903) -- valid -- Pallid Atlantic Forest Rat, Pallid Delomys
  Deltamys Thomas, 1917 -- valid
  Deltamys kempi Thomas, 1917 -- valid -- Kemp's Akodont, Kemp's Grass Mouse
  Dendrobaena bruna Omodeo & Rota, 1989 -- valid
  Dendrobaena fridericae Omodeo & Rota, 1989 -- valid
  Dendrobaena juliana Omodeo, 1954 -- valid
  Dendrobaena nivalis Omodeo & Rota, 1989 -- valid
  Dendrobaena persimilis Omodeo & Rota, 1989 -- valid
  Dendrobaena perula Omodeo & Rota, 1989 -- valid
  Dendrobaena proandra Omodeo & Rota, 1989 -- valid
  Dendrobates benedicta (Brown, Twomey, Pepper and Sanchez-Rodriguez, 2008) -- invalid
  Dendrobates defleri (Twomey and Brown, 2009) -- invalid
  Dendrobates histrionicus concluens Blomberg, 1955 -- invalid
  Dendrobates summersi (Brown, Twomey, Pepper and Sanchez-Rodriguez, 2008) -- invalid
  Dendrocephalus acacioidea (Belk and Sissom, 1992) -- valid -- Hidalgo fairy shrimp
  Dendrocerus basalis (Thomson, 1858) -- valid
  Dendrocoelides carpathium (Komarek, 1926) -- invalid
  Dendrocoelides coeca Komarek, 1926 -- invalid
  Dendrocoelum adenodactylosum (Stankovic and Komarek, 1927) -- valid
  Dendrocoelum bohemicum Komarek and Kunst, 1956 -- valid
  Dendrocoelum caecum (Komarek, 1926) -- valid
  Dendrocoelum carpathicum Komarek, 1926 -- valid
  Dendrocoelum coecum (Komarek, 1926) -- valid
  Dendrocoelum dani Bromley, 1982 -- valid
  Dendrocoelum decemoculatum (Komarek, 1919) -- valid
  Dendrocoelum jablanicense (Stankovic and Komarek, 1927) -- valid
  Dendrocoelum longipenis Komarek, 1916 -- valid
  Dendrocoelum maculatum (Stankovic and Komarek, 1927) -- valid
  Dendrocoelum ochridense (Stankovic and Komarek, 1927) -- valid
  Dendrocoelum sanctinaumae (Stankovic and Komarek, 1927) -- valid
  Dendrocoelum sanctinaumi (Stankovic and Komarek, 1927) -- invalid
  Dendrocoelum subterraneum Komarek, 1919 -- valid
  Dendroctonus rhizophagus Thomas and Bright, 1970 -- valid
  Dendrodrilus Omodeo, 1956 -- valid
  Dendrogale melanura (Thomas, 1892) -- valid -- Bornean Smooth-Tailed Treeshrew
  Dendrogale melanura melanura (Thomas, 1892) -- valid
  Dendrohyrax dorsalis emini Thomas, 1887 -- valid
  Dendrohyrax dorsalis latrator (Thomas, 1910) -- valid
  Dendrohyrax dorsalis marmota (Thomas, 1901) -- valid
  Dendroica graciae remota Griscom, 1935 -- invalid
  Dendroica pinus chrysoleuca Griscom, 1923 -- invalid
  Dendrolagus goodfellowi Thomas, 1908 -- valid -- Goodfellow's Tree-kangaroo
  Dendrolagus goodfellowi goodfellowi Thomas, 1908 -- valid
  Dendromus concinnus Thomas, 1926 -- invalid
  Dendromus exoneratus Thomas, 1918 -- invalid
  Dendromus insignis (Thomas, 1903) -- valid -- Montane African Climbing Mouse, Remarkable Climbing Mouse
  Dendromus kivu Thomas, 1916 -- invalid -- Kivu climbing mouse
  Dendromus messorius (Thomas, 1903) -- valid -- Banana African Climbing Mouse, Banana Climbing Mouse
  Dendromus nigrifrons vulturnus Thomas, 1916 -- invalid
  Dendromus nyasae Thomas, 1916 -- valid -- Kivu African Climbing Mouse
  Dendropsophus bromeliaceus Ferreira, Faivovich, Beard and Pombal, 2015 -- valid
  Dendropsophus cruzi (Pombal and Bastos, 1998) -- valid
  Dendropsophus dutrai (Gomes and Peixoto, 1996) -- valid
  Dendropsophus haddadi (Bastos and Pombal, 1996) -- valid
  Dendryphantes aethiopicus Wesolowska & Tomasiewicz, 2008 -- valid
  Denisiella Folsom & Mills, 1938 -- valid
  Deomyes Thomas, 1888 -- invalid
  Deomyinae Thomas, 1888 -- valid
  Deomys Thomas, 1888 -- valid
  Deomys ferrugineus Thomas, 1888 -- valid -- Congo forest mouse, Congo Forest Rat
  Depanycteris isabella Thomas, 1920 -- invalid
  Dephomys Thomas, 1926 -- valid
  Dermacentor raskemensis Pomerantzev, 1946 -- valid
  Dermanura glauca (Thomas, 1893) -- invalid -- Silvery Fruit-eating Bat
  Dermanura rosenbergi Thomas, 1897 -- invalid
  Dermanura watsoni (Thomas, 1901) -- invalid -- Thomas's Fruit-eating Bat
  Deromyia neoternata Bromley, 1931 -- invalid
  Derotmema haydeni (Thomas, 1872) -- valid
  Derovatellus natalensis Omer-Cooper, 1965 -- valid
  Desmaninae Thomas, 1912 -- invalid
  Desmanini Thomas, 1912 -- valid
  Desmethus chiriquensis Loomis, 1964 -- valid
  Desmiphora mexicana Thomson, 1860 -- invalid
  Desmiphorini Thomson, 1860 -- valid
  Desmodilliscus buchanani Thomas and Hinton, 1920 -- invalid
  Desmodillus Thomas and Schwann, 1904 -- valid
  Desmomys Thomas, 1910 -- valid
  Desmomys harringtoni (Thomas, 1902) -- valid -- Harrington's Desmomys
  Desmonus acclivus (Loomis, 1966) -- valid
  Desmonus conjunctus Loomis, 1959 -- valid
  Desmonus crassus Loomis, 1959 -- valid
  Desmonus curtus (Loomis, 1943) -- valid
  Desmonus distinctus Loomis, 1959 -- valid
  Deto aucklandiae (Thomson, 1879) -- valid
  Deuterodon stigmaturus (Gomes, 1947) -- valid
  Devade miranda Ponomarev, 2007 -- valid
  Devario yuensis (Arunkumar and Tombi Singh, 1998) -- valid
  Dexiogyia Thomson, 1858 -- valid
  Diactis Loomis, 1937 -- valid
  Diactis frondifera Loomis, 1937 -- valid
  Diactis soleata Loomis, 1937 -- valid
  Diactis triangula Loomis, 1937 -- valid
  Diagramma gibbosus Hombron and Jacquinot in Jacquinot and Guichenot, 1853 -- invalid
  Diamesa appendiculata Lundstrom, 1915 -- invalid
  Diamma Dahlbom, 1844 -- invalid
  Diamma spinolae Dahlbom, 1844 -- invalid
  Diaphanacme Loomis, 1964 -- valid
  Diaphanacme lata Loomis, 1964 -- valid
  Diarthrodes Thomson, 1882 -- valid
  Diarthrodes novaezealandiae Thompson, 1883 -- valid
  Diastatops emilia Montgomery, 1940 -- valid
  Diastatops estherae Montgomery, 1940 -- valid
  Diastatops intensa Montgomery, 1940 -- valid
  Diastatops maxima Montgomery, 1940 -- valid
  Diastatops nigra Montgomery, 1940 -- valid
  Dicaeum aeneum malaitae Salomonsen, 1960 -- valid
  Dicaeum aureolimbatum laterale Salomonsen, 1960 -- valid
  Dicaeum cruentatum simalurense Salomonsen, 1961 -- valid
  Dicaeum eximium phaeopygium Salomonsen, 1964 -- valid
  Dicaeum nigrilore diuatae Salomonsen, 1953 -- valid
  Dicellarius sternolobus Loomis, 1969 -- valid
  Dichelobius etnaensis Edgecombe and Giribet, 2004 -- valid
  Dichelobius giribeti Edgecombe, 2004 -- invalid
  Dichogaster arboricola Wasawo & Omodeo, 1963 -- valid
  Dichogaster arcifera Omodeo, 1958 -- valid
  Dichogaster candida Omodeo, 1958 -- valid
  Dichogaster enchytraeus Omodeo, 1958 -- valid
  Dichogaster gracilis metandra Omodeo, 1973 -- valid
  Dichogaster hammon Somon, 1995 -- valid
  Dichogaster hemiandra Omodeo, 1973 -- valid
  Dichogaster lamottei Omodeo, 1958 -- valid
  Dichogaster leroyi Omodeo, 1958 -- valid
  Dichogaster machadoi Omodeo, 1973 -- valid
  Dichogaster nematochaeta Omodeo, 1958 -- valid
  Dichogaster notabilis Omodeo, 1958 -- valid
  Dichogaster papillosa Omodeo, 1958 -- valid
  Dichogaster penigera Omodeo, 1958 -- valid
  Dichogaster proandra Omodeo, 1958 -- valid
  Dichogaster septemdecim Omodeo, 1958 -- valid
  Dichogaster sexdecim Omodeo, 1958 -- valid
  Dichogaster singula Omodeo, 1958 -- valid
  Dichogaster terraenigrae Omodeo & Vaillaud, 1967 -- valid
  Dichogaster tuzeti Omodeo, 1954 -- valid
  Dichogaster undecim Omodeo, 1958 -- valid
  Dichromanassa rufescens colorata Griscom, 1926 -- invalid
  Diclidurus (Depanycteris) Thomas, 1920 -- valid
  Diclidurus albus virgo Thomas, 1903 -- valid
  Diclidurus isabellus (Thomas, 1920) -- valid -- Isabelle's ghost bat, Isabelle's Ghost Bat
  Diclidurus virgo Thomas, 1903 -- invalid
  Dicranomyia cinereipennis Lundstrom, 1912 -- invalid
  Dicropus Loomis, 1972 -- valid
  Dicropus tecticaudatus Loomis, 1972 -- valid
  Dicrostonyxini Gromov, 1972 -- invalid
  Dictyonellidae Van Soest, Diaz & Pomponi, 1990 -- valid
  Dicyrtoma dubia (Folsom, 1932) -- valid
  Dicyrtoma hageni (Folsom, 1896) -- valid
  Dicyrtoma opalina (Folsom, 1896) -- valid
  Dicyrtoma palmata (Folsom, 1902) -- valid
  Dicyrtoma pini (Folsom, 1896) -- invalid
  Dicyrtoma testudineatus Folsom, 1896 -- invalid
  Dicyrtoma vittata (Folsom, 1896) -- valid
  Didesmus Dahlbom, 1845 -- invalid
  Didesmus spinolae (Dahlbom, 1844) -- invalid
  Dienoplus citipes Krombein, 1954 -- invalid
  Dienoplus lunatus (Dahlbom, 1832) -- invalid
  Dierobia Thomson, 1859 -- invalid
  Diestothyris Thomson, 1916 -- valid
  Digenobothrium Palombi, 1926 -- valid
  Digenobothrium inerme Palombi, 1926 -- valid
  Digitipes jangii Joshi and Edgecombe, 2013 -- valid
  Digitipes kalewaensis Siriwut, Edgecombe and Panha, 2015 -- valid
  Digitipes periyarensis Joshi and Edgecombe, 2013 -- invalid
  Diglossa baritula parva Griscom, 1932 -- valid
  Diglossa plumbea veraguensis Griscom, 1927 -- valid
  Dilacra Thomson, 1858 -- valid
  Dilophops Loomis, 1934 -- valid
  Dilophops bullatus Loomis, 1934 -- valid
  Dinaraea Thomson, 1858 -- valid
  Dinjapygidae Womersley, 1939 -- valid
  Dinoderinae C. G. Thomson, 1863 -- valid
  Dioctria propinqua Bromley, 1924 -- invalid
  Dioctria seminole Bromley, 1924 -- valid
  Diodontus alienus Krombein, 1950 -- invalid
  Diodontus concolor (Dahlbom, 1843) -- invalid
  Diodontus franclemonti (Krombein, 1939) -- invalid
  Diodontus fuscipennis (Dahlbom, 1843) -- invalid
  Diodontus medius Dahlbom, 1844 -- valid
  Diogmites contortus Bromley, 1936 -- valid
  Diogmites crudelis Bromley, 1936 -- valid
  Diogmites esuriens Bromley, 1936 -- valid
  Diogmites fragilis Bromley, 1936 -- valid
  Diogmites grossus Bromley, 1936 -- valid
  Diogmites missouriensis Bromley, 1951 -- valid
  Diogmites neoternatus (Bromley, 1951) -- valid
  Diogmites pritchardi Bromley, 1936 -- valid
  Diogmites properans Bromley, 1936 -- valid
  Diogmites salutans Bromley, 1936 -- valid
  Diogmites texanus Bromley, 1934 -- valid
  Diomys Thomas, 1917 -- valid
  Diomys crumpi Thomas, 1917 -- valid -- Crump's Diomys, Crump's Mouse
  Diosaccus dentatus (Thompson and Scott, 1903) -- valid
  Diosaccus robustus (Thompson and Scott) -- valid
  Diphlebus rugifer (Dahlbom, 1844) -- invalid
  Diphydactylus Thomson, 1858 -- invalid
  Diplogale Thomas, 1912 -- valid
  Diplogale hosei (Thomas, 1892) -- valid -- Hose's Palm Civet
  Diplogrammus xenicus (Jordan and Thompson, 1914) -- valid
  Diplomys Thomas, 1916 -- valid
  Diploplectron peglowi Krombein, 1939 -- valid
  Diplosis catalpae Comstock, 1881 -- invalid
  Diplosolenodes Thome, 1976 -- valid
  Diplostix paromaloides Gomy and Vienna, 2004 -- valid
  Diplostix ruthae Gomy and Vienna, 2004 -- valid
  Diplostix vicaria (Cooman, 1935) -- valid
  Diplothrix Thomas, 1916 -- valid
  Diplothrix legata (Thomas, 1906) -- valid -- Ryukyu Islands Tree Rat
  Diplothrix legatus (Thomas, 1906) -- invalid
  Dipodillus arabium Thomas, 1918 -- invalid
  Dipodillus campestris roszikae Thomas, 1908 -- invalid
  Dipodillus campestris rozsikae Thomas, 1913 -- invalid
  Dipodillus dodsoni Thomas, 1902 -- invalid
  Dipodillus harwoodi (Thomas, 1901) -- valid -- Harwood's Dipodil, Harwood's Gerbil
  Dipodillus hilda Thomas, 1918 -- invalid
  Dipodillus indus Thomas, 1920 -- invalid
  Dipodillus jordani Thomas, 1918 -- invalid
  Dipodillus lowei (Thomas and Hinton, 1923) -- valid -- Lowe's Dipodil, Lowe's Gerbil
  Dipodillus mackilligini Thomas, 1904 -- valid -- Mackilligin's Dipodil
  Dipodillus mimulus Thomas, 1902 -- invalid
  Dipodillus somalicus (Thomas, 1910) -- valid -- Somalian Dipodil, Somalian Gerbil
  Dipodillus vivax Thomas, 1902 -- invalid
  Diporodrilus bouchei Omodeo, 1984 -- valid
  Dipturus mennii Gomes and Paragó, 2001 -- valid
  Dipus sowerbyi Thomas, 1908 -- invalid
  Discus cronkhitei (Newcomb, 1865) -- invalid -- forest disc
  Discus whitneyi (Newcomb, 1864) -- valid -- forest disc
  Disphaeron Dahlbom, 1837 -- invalid
  Dissacantha Thomson, 1864 -- invalid
  Dissosteira longipennis (Thomas, 1872) -- valid -- high plains grasshopper
  Disteniinae Thomson, 1860 -- valid
  Disteniini Thomson, 1860 -- valid
  Distichodus langi Nichols and Griscom, 1917 -- valid
  Ditremagenia Palombi, 1928 -- valid
  Ditremagenia macropharynx Palombi, 1928 -- valid
  Ditremageniidae Palombi, 1928 -- valid
  Ditremagenioidea Palombi, 1928 -- valid
  Diversibipalium claviforme (Loman, 1890) -- valid
  Diversibipalium expeditionis (Loman, 1895) -- valid
  Diversibipalium hasseltii (Loman, 1890) -- valid
  Diversibipalium kuhlii (Loman, 1890) -- valid
  Diversibipalium nigrilumbe (Loman, 1890) -- valid
  Diversibipalium quadricinctum (Loman, 1890) -- valid
  Diversibipalium sexcinctum (Loman, 1890) -- valid
  Diversibipalium sumatrense (Loman, 1883) -- valid
  Diversibipalium vittatum (Loman, 1888) -- valid
  Diversibipalium weberi (Loman, 1890) -- valid
  Dobsonia anderseni Thomas, 1914 -- valid -- Andersen's Naked-backed Fruit Bat
  Dobsonia magna Thomas, 1905 -- invalid -- New Guinea Naked-backed Fruit Bat
  Dobsonia moluccensis magna Thomas, 1905 -- valid -- New Guinea Naked-backed Fruit Bat
  Dochmonota Thomson, 1859 -- valid
  Docodesmiella Loomis, 1961 -- valid
  Docodesmiella insularis Loomis, 1961 -- valid
  Docodesmiella magna Loomis, 1964 -- valid
  Docodesmiella spathulata Loomis, 1964 -- valid
  Docodesmus alifer Loomis, 1941 -- valid
  Docodesmus angustus Loomis, 1941 -- valid
  Docodesmus cooki Loomis, 1969 -- valid
  Docodesmus coxalis Loomis, 1975 -- valid
  Docodesmus cubensis Loomis, 1937 -- valid
  Docodesmus griseus Loomis, 1941 -- valid
  Docodesmus sculpturatus Loomis, 1934 -- valid
  Docodesmus semiseptus Loomis, 1936 -- valid
  Doeringiella asignata Compagnucci & Roig-Alsina, 2003 -- valid
  Doeringiella baerina Compagnucci & Roig-Alsina, 2003 -- valid
  Doeringiella maray Compagnucci & Roig-Alsina, 2003 -- valid
  Doeringiella tastil Compagnucci & Roig-Alsina, 2003 -- valid
  Dolichogenidea cinnarae Gupta, Lokhande and Soman, 2013 -- valid
  Dolichogenidea longicalcar (Thomson, 1895) -- valid
  Dolichopus aurifer Thomson, 1869 -- invalid
  Dolichopus canaliculatus Thomson, 1869 -- valid
  Dolichopus metatarsalis Thomson, 1869 -- invalid
  Dolichotis patagonum centricola (Thomas, 1902) -- valid
  Dolichurinae Dahlbom, 1842 -- valid
  Dolichurini Dahlbom, 1842 -- valid
  Dolichurus albifacies Krombein, 1979 -- valid
  Dolichurus aridulus Krombein, 1979 -- valid
  Dolichurus lankensis Krombein, 1979 -- valid
  Dolichurus silvicola Krombein, 1979 -- valid
  Dollfusiella vooremi (Săo Clemente & Gomes, 1989) -- valid
  Dologale Thomas, 1926 -- valid
  Donzelotauropus guillermoi (Dominguez and Scheller, 1987) -- valid
  Dorcaschematini Thomson, 1860 -- valid
  Dorcatominae C. G. Thomson, 1859 -- valid
  Dorcopsis muelleri mysoliae Thomas, 1913 -- valid
  Dorcopsulus vanheurni (Thomas, 1922) -- valid -- Small Dorcopsis
  Dorhynchus Thomson, 1873 -- valid
  Dorhynchus thomsoni Thomson, 1873 -- valid
  Dorsoporidae Loomis, 1958 -- valid
  Dorsoporus Loomis, 1958 -- valid
  Dorsoporus barroensis Loomis, 1958 -- valid
  Doryrhina muscinus (Thomas and Doria, 1886) -- valid -- Fly River Leaf-nosed Bat
  Doryrhina stenotis (Thomas, 1913) -- valid -- Narrow-eared Leaf-nosed Bat, Narrow-eared Roundleaf Bat, Northern Leaf-nosed Bat
  Doryrhina wollastoni (Thomas, 1913) -- valid -- Wollaston's Leaf-nosed Bat
  Doryrhina wollastoni wollastoni (Thomas, 1913) -- valid
  Doumea alula Nichols and Griscom, 1917 -- valid
  Drassodes archibensis Ponomarev & Alieva, 2008 -- valid
  Drassodes caspius Ponomarev & Tsvetkov, 2006 -- valid
  Drassodes dagestanus Ponomarev & Alieva, 2008 -- valid
  Drassyllus dadia Komnenov & Chatzaki, 2016 -- valid
  Drassyllus fragilis Ponomarev, 2008 -- valid
  Dremomys everetti (Thomas, 1890) -- valid -- Bornean Mountain Ground Squirrel
  Dremomys lokriah garonum Thomas, 1922 -- valid
  Dremomys lokriah macmillani Thomas and Wroughton, 1916 -- valid
  Dremomys pernyi calidior Thomas, 1916 -- valid
  Dremomys pernyi howelli Thomas, 1922 -- valid
  Dremomys pernyi imus Thomas, 1922 -- valid
  Dremomys pernyi modestus Thomas, 1916 -- valid
  Dremomys pernyi owstoni (Thomas, 1908) -- valid
  Dremomys pyrrhomerus (Thomas, 1895) -- valid -- Red-hipped Squirrel
  Dremomys pyrrhomerus pyrrhomerus (Thomas, 1895) -- valid
  Dremomys rufigenis adamsoni Thomas, 1914 -- valid
  Dremomys rufigenis ornatus Thomas, 1914 -- valid
  Dromiciops Thomas, 1894 -- valid -- monito del monte
  Dromiciops gliroides Thomas, 1894 -- valid -- Monito del Monte, monito del monte
  Dromicus parvifrons paraniger Thomas and Schwartz, 1965 -- invalid
  Dromicus parvifrons stygius Thomas and Schwartz, 1965 -- invalid
  Drosomys Thomas, 1906 -- invalid
  Drosophila apicata Thomson, 1869 -- invalid
  Dryachloa F. G. Thompson and H. G. Lee, 1980 -- valid
  Dryachloa dauca F. G. Thompson and H. G. Lee, 1980 -- valid -- carrot glass
  Dryadillo uenoi Nunomura, 1995 -- valid
  Drymo Thomson, 1864 -- invalid
  Drymobius brazilii Gomes, 1918 -- invalid
  Drymoluber brazili (Gomes, 1918) -- valid -- Brazilian Woodland Racer
  Dryoctenitae Thomson, 1860 -- invalid
  Dryomys Thomas, 1906 -- valid -- Forest Dormice
  Dryopomorphus amami Yoshitomi and Satô, 2005 -- valid
  Dryopomorphus laosensis Yoshitomi and Jeng, 2013 -- valid
  Dryopomorphus nakanei Nomura, 1958 -- valid
  Dryopomorphus yaku Yoshitomi and Satô, 2005 -- valid
  Dryudella pinguis (Dahlbom, 1832) -- valid
  Ducula oceanica monacha (Momiyama, 1922) -- valid
  Ducula oceanica teraokai (Momiyama, 1922) -- valid
  Ducula oceanica teraoki (Momiyama, 1922) -- invalid
  Dufourea cypria Mavromoustakis, 1952 -- valid
  Dugesia absoloni (Komarek, 1919) -- valid
  Dugesia golanica Bromley and Benazzi, 1991 -- valid
  Dugesia libanica Bromley and Benazzi, 1991 -- valid
  Dularius Thomson, 1860 -- invalid
  Dunwichia Faubel, Blome and Cannon, 1994 -- valid
  Dunwichia arenosa Faubel, Blome and Cannon, 1994 -- valid
  Dyacopterus brooksi Thomas, 1920 -- valid -- Brooks's Dyak Fruit Bat
  Dyacopterus rickarti Helgen, Kock, Gomez and Ingle, 2007 -- valid -- Philippine Large-headed Fruit Bat
  Dyacopterus spadiceus (Thomas, 1890) -- valid -- Common Dyak Fruit Bat, Dyak Fruit Bat
  Dybasia Loomis, 1964 -- valid
  Dybasia chiriquia (Loomis, 1964) -- valid
  Dybasia divergens (Loomis, 1964) -- valid
  Dybasia humerosa Loomis, 1964 -- valid
  Dybasia interamericana Loomis, 1975 -- valid
  Dynamenella huttoni (Thomson, 1879) -- valid
  Dyromys Thomas, 1907 -- invalid
  Dyromys milleri Thomas, 1912 -- invalid
  Dyromys nitedula phrygius Thomas, 1907 -- invalid
  Dysaphis tulipae (Fonscolombe, 1841) -- valid
  Dysdera enghoffi Arnedo, Oromí & Ribera, 1997 -- valid
  Dysdera hirguan Arnedo, Oromí & Ribera, 1997 -- valid
  Dysdera orahan Arnedo, Oromí & Ribera, 1997 -- valid
  Dysdera ramblae Arnedo, Oromí & Ribera, 1997 -- valid
  Dysdera sanborondon Arnedo, Oromí & Ribera, 2000 -- valid
  Dysithamnus puncticeps intensus Griscom, 1932 -- valid
  Dystaxia lecontei Thomson, 1879 -- invalid
  Dzhungaria Farzalieva, Zalesskaja and Edgecombe, 2004 -- valid
  Dzhungaria gigantea Farzalieva, Zalesskaja and Edgecombe, 2004 -- valid
  Dzhungarocosa Fomichev & Marusik, 2017 -- valid
  Dzhungarocosa ballarini Fomichev & Marusik, 2017 -- valid
  Dzhungarocosa omelkoi Fomichev & Marusik, 2017 -- valid
  Dzhungarocosa zhishengi Fomichev & Marusik, 2017 -- valid
  Easonobius Edgecombe, 2003 -- valid
  Easonobius tridentatus Edgecombe, 2003 -- valid
  Eblisia bicincta Cooman, 1941 -- valid
  Eblisia calceata (Cooman, 1931) -- valid
  Eblisia cinctisternum (Cooman, 1936) -- valid
  Eblisia desbordesi (Cooman, 1930) -- invalid
  Eblisia fossipyga Cooman, 1941 -- valid
  Eblisia hobbyi (Cooman, 1937) -- valid
  Eblisia miripuncta (Cooman, 1932) -- valid
  Eblisia molesta (Cooman, 1955) -- invalid
  Eblisia puella Cooman, 1956 -- valid
  Eblisia tonkinense (Cooman, 1956) -- invalid
  Eblisia variistria (Cooman, 1956) -- valid
  Echimys lamarum (Thomas, 1916) -- invalid
  Echimys rhipidurus Thomas, 1928 -- invalid
  Echimys saturnus Thomas, 1928 -- valid -- Dark Spiny Tree-rat
  Echinaster densispinulosus Tommasi, 1970 -- invalid
  Echinaster nudus Tommasi, 1970 -- invalid
  Echinoderes higginsi Huys and Coomans, 1989 -- valid
  Echinoderes maxwelli (Omer-Cooper, 1957) -- valid
  Echinomuricea scolopendra Thomson, 1927 -- invalid
  Echinomyia filipalpis Thomson, 1869 -- invalid
  Echinorhynchoides Achmerov and Dombrovskaja-Achmerova, 1941 -- valid
  Echinorhynchoides dogieli Achmerov and Dombrovskaja-Achmerova, 1941 -- valid
  Echinorhynchus brayi Wayland, Sommerville and Gibson, 1999 -- valid
  Echinorhynchus lenok Achmerov and Dombrovskaja-Achmerova, 1941 -- valid
  Echinorhynchus lenoki Achmerov and Dombrovskaja-Achmerova, 1941 -- invalid
  Echinorhynchus trachyrinci Wayland, Gibson and Sommerville, 1997 -- valid
  Echinothuriidae Thomson, 1872 -- valid
  Echiodon Thompson, 1837 -- valid
  Echiodon drummondii Thompson, 1837 -- valid
  Echis leucogaster Roman, 1972 -- valid -- Roman's Saw-scaled Viper
  Echthodopa carolinensis Bromley, 1951 -- valid
  Ecitocala Frank in Frank and Thomas, 1981 -- valid
  Economidichthys trichonis Economidis and Miller, 1990 -- valid
  Ectemnius Dahlbom, 1845 -- valid
  Ectemnius cavifrons (Thomson, 1870) -- valid
  Ectemnius cavifrons cavifrons (Thomson, 1870) -- valid
  Ectemnius planifrons (Thomson, 1870) -- invalid
  Ectemnius rugifer (Dahlbom, 1845) -- valid
  Ectemnius scaber rufescens Krombein, 1954 -- valid
  Efferia benedicti (Bromley, 1940) -- valid
  Efferia bexarensis (Bromley, 1934) -- valid
  Efferia cannella (Bromley, 1934) -- valid
  Efferia helenae (Bromley, 1951) -- valid
  Efferia knowltoni (Bromley, 1937) -- valid
  Efferia mesquite (Bromley, 1951) -- valid
  Efferia monki (Bromley, 1951) -- valid
  Efferia prairiensis (Bromley, 1934) -- valid
  Efferia subarida (Bromley, 1940) -- valid
  Efferia tricella (Bromley, 1951) -- valid
  Efferia utahensis (Bromley, 1937) -- valid
  Efferia vertebrata (Bromley, 1940) -- valid
  Efferia wilcoxi (Bromley, 1940) -- valid
  Eidolon helvum annobonense Juste, Ibáńez and Machordom, 2000 -- valid
  Eidolon helvum annobonensis Juste, Ibáńez and Machordom, 2000 -- invalid
  Eira barbara biologiae (Thomas, 1900) -- valid
  Eira barbara senex (Thomas, 1900) -- valid
  Eisothistos nipponicus Nunomura, 1984D -- valid
  Elaenia frantzii ultima Griscom, 1935 -- valid
  Elaenia martinica chinchorrensis Griscom, 1926 -- valid
  Elaphidionini Thomson, 1864 -- valid
  Elaphognathia cornigera (Nunomura, 1992D) -- valid
  Elaphognathia discolor (Nunomura, 1988A) -- valid
  Elaphognathia sugashimaensis (Nunomura, 1981A) -- valid
  Elapomorphus nasutus Gomes, 1915 -- invalid
  Elasmopus balkomanus Thomas and J. L. Barnard, 1988 -- valid
  Elasmucha cordillera Thomas, 1991 -- valid
  Elephantulus Thomas and Schwann, 1906 -- valid -- Long-eared Elephant Shrews
  Elephantulus fuscipes (Thomas, 1894) -- valid -- Dusky-footed Elephant Shrew
  Elephantulus myurus Thomas and Schwann, 1906 -- valid -- Eastern Rock Elephant Shrew
  Elephantulus rozeti deserti (Thomas, 1901) -- valid
  Elephantulus rufescens boranus (Thomas, 1901) -- valid
  Elephantulus rufescens peasei (Thomas, 1901) -- valid
  Elephantulus rufescens pulcher (Thomas, 1894) -- valid
  Elephantulus rufescens somalicus (Thomas, 1901) -- valid
  Eleutherodactylus amadeus Hedges, Thomas and Franz, 1987 -- valid
  Eleutherodactylus caribe Hedges and Thomas, 1992 -- valid
  Eleutherodactylus coqui Thomas, 1966 -- valid -- Common Coqui, Coqui, Coquí
  Eleutherodactylus corona Hedges and Thomas, 1992 -- valid
  Eleutherodactylus dolomedes Hedges and Thomas, 1992 -- valid
  Eleutherodactylus griphus Crombie, 1986 -- valid
  Eleutherodactylus guantanamera Hedges, Estrada and Thomas, 1992 -- valid
  Eleutherodactylus juanariveroi Rios-López and Thomas, 2007 -- valid
  Eleutherodactylus mariposa Hedges, Estrada and Thomas, 1992 -- valid
  Eleutherodactylus melacara Hedges, Estrada and Thomas, 1992 -- valid
  Eleutherodactylus parapelates Hedges and Thomas, 1987 -- valid
  Eleutherodactylus schwartzi Thomas, 1966 -- valid -- Virgin Islands Coqui
  Eleutherodactylus simonbolivari Wiens and Coloma, 1992 -- invalid
  Eleutherodactylus sisyphodemus Crombie, 1977 -- valid
  Eleutho Thomson, 1864 -- invalid
  Eligmodon Thomas, 1896 -- invalid
  Eligmodontia carilla Thomas, 1902 -- invalid
  Eligmodontia ducilla Thomas, 1901 -- invalid
  Eligmodontia hirtipes (Thomas, 1902) -- valid
  Eligmodontia hirtipes jacunda Thomas, 1919 -- invalid
  Eligmodontia marica Thomas, 1918 -- invalid
  Eligmodontia moreni (Thomas, 1896) -- valid -- Monte Gerbil Mouse, Monte Laucha
  Elimia annae Mihalcik and F. G. Thompson, 2002 -- valid -- Rainbow Elimia
  Elimia broccata F. G. Thompson, 2000 -- valid -- Brooch Elimia
  Elimia buffyae Mihalcik and F. G. Thompson, 2002 -- valid -- Iris Elimia
  Elimia darwini Mihalcik and F. G. Thompson, 2002 -- valid -- Pup Elimia
  Elimia exusta Mihalcik and F. G. Thompson, 2002 -- valid -- Fire Elimia
  Elimia glarea Mihalcik and F. G. Thompson, 2002 -- valid -- Gravel Elimia
  Elimia godwini F. G. Thompson, 2000 -- valid -- Rusty Elimia
  Elimia mihalcikae F. G. Thompson, 2000 -- valid -- Latticed Elimia
  Elimia teretria F. G. Thompson, 2000 -- valid -- Auger Elimia
  Eliomys angelus Thomas, 1906 -- invalid
  Eliomys gymnesicus Thomas, 1903 -- invalid
  Eliomys lerotinus occidentalis Thomas, 1903 -- invalid
  Eliomys lerotinus tunetae Thomas, 1903 -- invalid
  Eliomys munbyanus (Pomel, 1856) -- valid -- Maghreb Garden Dormouse
  Eliomys ophiusae Thomas, 1925 -- invalid
  Eliurus majori Thomas, 1895 -- valid -- Major's Tufted-tailed Rat
  Eliurus penicillatus Thomas, 1908 -- valid -- White-tipped Tufted-tailed Rat
  Ellipsoptera nevadica makosika (Spomer, 2004) -- valid -- Indian Creek Tiger Beetle
  Ellobius albicatus Thomas, 1912 -- invalid
  Ellobius coenosus Thomas, 1912 -- invalid
  Ellobius fusciceps ursulus Thomas, 1912 -- invalid
  Ellobius kastschenkoi Thomas, 1912 -- invalid
  Ellobius lutescens Thomas, 1897 -- valid -- Transcaucasian Mole Vole
  Ellobius talpinus transcaspiae Thomas, 1912 -- invalid
  Ellobius woosnami Thomas, 1905 -- invalid
  Elseya albagula Thomson, Georges and Limpus, 2006 -- valid -- Southern Snapping Turtle, White-throated Snapping Turtle
  Emballonura alecto rivalis Thomas, 1915 -- valid
  Emballonura beccarii clavium Thomas, 1915 -- valid
  Emballonura beccarii meeki Thomas, 1896 -- valid
  Emballonura cor Thomas, 1915 -- invalid
  Emballonura furax Thomas, 1911 -- valid -- New Guinea sheath-tailed bat, New Guinean Sheath-tailed Bat
  Emballonura meeki Thomas, 1896 -- invalid
  Emballonura meeki clavium Thomas, 1915 -- invalid
  Emballonura monticola rivalis Thomas, 1915 -- invalid
  Emballonura papuana Thomas, 1914 -- invalid
  Emballonura raffrayana cor Thomas, 1915 -- valid
  Emballonura raffrayana stresemanni Thomas, 1914 -- valid
  Emballonura stresemanni Thomas, 1914 -- invalid
  Emberiza flaviventris princeps Clancey & Winterbottom, 1960 -- valid
  Emberiza tahapisi nivenorum (Winterbottom, 1965) -- valid
  Emberizoides herbicola floresae Griscom, 1924 -- invalid
  Empicoris electricus Thomas, 1992 -- valid
  Empidonax albigularis australis W. Miller & Griscom, 1925 -- valid
  Empidonax fulvifrons inexpectatus Griscom, 1932 -- valid
  Emys orbicularis ingauna Jesu, Piombo, Salvidio, Lamagni, Ortale and Genta, 2004 -- valid -- Ligurian Pond Turtle
  Enantiogonus Loomis, 1961 -- valid
  Enantiogonus fragilis Loomis, 1961 -- valid
  Enchiridium delicatum (Palombi, 1939) -- valid
  Enchiridium russoi (Palombi, 1939) -- valid
  Enchisthenes hartii (Thomas, 1892) -- valid -- Velvety Fruit-eating Bat
  Endasys melanurus (Roman, 1909) -- valid
  Endasys minutulus (Thomson, 1883) -- valid
  Endeis procera (Loman, 1908) -- valid
  Endere Loomis, 1938 -- valid
  Endere disora Loomis, 1938 -- valid
  Engystomops guayaco (Ron, Coloma and Cannatella, 2005) -- valid
  Engystomops montubio (Ron, Cannatella and Coloma, 2004) -- valid
  Engystomops randi (Ron, Cannatella and Coloma, 2004) -- valid
  Enochrus Thomson, 1859 -- valid
  Enochrus (Enochrus) Thomson, 1859 -- valid
  Enodia Dahlbom, 1843 -- invalid
  Enodia canescens Dahlbom, 1843 -- invalid
  Enodia sundewalli Dahlbom, 1845 -- invalid
  Enoploceritae Thomson, 1864 -- invalid
  Enosmaeus Thomson, 1878 -- valid
  Enosmaeus cubanus Thomson, 1878 -- valid
  Entomobrya comparata Folsom, 1919 -- valid
  Entomobrya kincaidi Folsom, 1902 -- valid
  Entomobrya ligata Folsom, 1924 -- valid
  Entomobrya lucifuga (Folsom, 1902) -- invalid
  Entomobrya mineola Folsom, 1924 -- valid
  Entomognathus Dahlbom, 1844 -- valid
  Entomognathus arenivagus Krombein, 1963 -- valid
  Entomosericus Dahlbom, 1845 -- valid
  Entomosericus concinnus Dahlbom, 1845 -- valid
  Eoanthidium judaeense (Mavromoustakis, 1945) -- valid
  Eoanthidium turnericum (Mavromoustakis, 1934) -- valid
  Eophila cavazzutii Omodeo, 1988 -- valid
  Eophila cavazzutii cavazzutii Omodeo, 1988 -- valid
  Eophila cavazzutii pascuorum Omodeo, 1988 -- valid
  Eosentomon australicum Womersley, 1939 -- valid
  Eosentomon millsi Womersley, 1938 -- invalid
  Eosentomon swani Womersley, 1932 -- valid
  Eosentomon westraliense Womersley, 1932 -- valid
  Eospalax rothschildi (Thomas, 1911) -- valid -- Rothschild's Zokor
  Eospalax smithii (Thomas, 1911) -- valid -- Smith's Zokor
  Eothenomys cachinus (Thomas, 1921) -- valid -- Kachin Red-backed Vole
  Eothenomys chinensis (Thomas, 1891) -- valid -- Pratt's Vole, Sichuan Red-Backed Vole
  Eothenomys custos (Thomas, 1912) -- valid -- Southwest China Red-backed Vole, Southwest China Vole
  Eothenomys eva (Thomas, 1911) -- invalid -- Ganzu Vole
  Eothenomys inez (Thomas, 1908) -- invalid -- Kolan vole
  Eothenomys miletus (Thomas, 1914) -- valid -- Yunnan Red-backed Vole
  Eothenomys olitor (Thomas, 1911) -- valid -- Black-eared Red-backed Vole, Chaotung vole
  Eothenomys regulus (Thomas, 1907) -- invalid -- Royal vole
  Eothenomys shanseius (Thomas, 1908) -- invalid -- Shansei Vole
  Eothenomys wardi (Thomas, 1912) -- valid -- Ward's Red-backed Vole
  Epeolus bischoffi (Mavromoustakis, 1954) -- valid
  Ephemerella mucronata unicolorata (Ikonomov, 1961) -- invalid
  Ephemerella unicolorata (Ikonomov, 1961) -- invalid
  Ephydra pentastigma Thomson, 1869 -- invalid
  Ephyriades brunnea floridensis E. Bell and W. Comstock, 1948 -- valid
  Ephyriades brunneus floridensis E. Bell and W. Comstock, 1948 -- invalid
  Epibembex insularis (Dahlbom, 1844) -- invalid
  Epicrium carnosum Beddome, 1870 -- invalid
  Epiechinus commersoni Gomy, 1978 -- invalid
  Epiechinus sculptus Gomy, 1969 -- valid
  Epiechinus therondi Gomy, 1969 -- valid
  Epierus binasutus Cooman, 1935 -- valid
  Epierus villiersi Cooman, 1938 -- valid
  Epimys berdmorei mullulus Thomas, 1916 -- invalid
  Epimys confucianus canorus Thomas, 1911 -- invalid
  Epimys gambianus Thomas, 1911 -- invalid
  Epimys jacksoni viator Thomas, 1911 -- invalid
  Epimys listeri Thomas, 1916 -- invalid
  Epimys whiteheadi perlutus Thomas, 1911 -- invalid
  Epinannolene affinis Loomis, 1961 -- valid
  Epinannolene biseriatus Loomis, 1938 -- valid
  Epinannolene caeca Loomis, 1964 -- valid
  Epinannolene convexus Loomis, 1936 -- valid
  Epinannolene curta Loomis, 1941 -- valid
  Epinannolene plana Loomis, 1961 -- valid
  Epinannolene robusta Loomis, 1961 -- valid
  Epinannolene sulcata Loomis, 1964 -- valid
  Epinannolene virgata Loomis, 1936 -- valid
  Epinephelus lebretonianus (Hombron and Jacquinot in Jacquinot and Guichenot, 1853) -- valid -- mystery grouper
  Epipedobates machalilla (Coloma, 1995) -- valid
  Epiplatys guineensis Romand, 1994 -- valid
  Epiplatys roloffi Romand, 1978 -- valid
  Episernus Thomson, 1863 -- valid
  Episoriculus caudatus sacratus (Thomas, 1911) -- valid
  Episoriculus fumidus (Thomas, 1913) -- valid -- Taiwan Brown-toothed Shrew, Taiwanese Brown-toothed Shrew
  Episoriculus leucops baileyi (Thomas, 1914) -- valid
  Epitoxasia Cooman, 1932 -- valid
  Epitoxasia adebratti Gomy, 2003 -- valid
  Epitoxasia danielssoni Gomy, 2003 -- valid
  Epitoxasia franzi Gomy, 1976 -- valid
  Epitoxasia indica Gomy and Vienna, 2001 -- valid
  Epitoxasia nitens Cooman, 1932 -- valid
  Epitoxasia viennai Gomy, 2003 -- valid
  Epitoxus drumonti Gomy, 2011 -- valid
  Epixerus Thomas, 1909 -- valid -- African Palm Squirrels
  Epomophorus franqueti Tomes, 1860 -- invalid
  Epomops franqueti (Tomes, 1860) -- valid -- Franquet's epauletted bat, Franquet's Epauletted Fruit Bat
  Eptesicus argentinus Thomas, 1920 -- invalid
  Eptesicus bottae hingstoni Thomas, 1919 -- valid
  Eptesicus brasiliensis argentinus Thomas, 1920 -- valid
  Eptesicus brunneus (Thomas, 1880) -- invalid -- dark-brown serotine
  Eptesicus chiriquinus Thomas, 1920 -- valid -- Chiriquinan Serotine
  Eptesicus demissus Thomas, 1916 -- invalid -- Surat serotine
  Eptesicus diminutus fidelis Thomas, 1920 -- valid
  Eptesicus dimissus Thomas, 1916 -- valid -- Surat Serotine
  Eptesicus fidelis Thomas, 1920 -- invalid
  Eptesicus fuscus peninsulae (Thomas, 1898) -- valid
  Eptesicus hingstoni Thomas, 1919 -- invalid
  Eptesicus matroka (Thomas and Schwann, 1905) -- valid -- Malagasy Serotine
  Eptesicus nasutus matschiei (Thomas, 1905) -- valid
  Eptesicus nasutus pellucens (Thomas, 1906) -- valid
  Eptesicus platyops (Thomas, 1901) -- valid -- Lagos serotine, Lagos Serotine
  Eptesicus pumilus caurinus Thomas, 1914 -- invalid
  Eptesicus pumilus vulturnus Thomas, 1914 -- invalid
  Eptesicus regulus Thomas, 1906 -- invalid -- southern forest bat
  Eptesicus rendalli (Thomas, 1889) -- invalid -- Rendall's serotine
  Eptesicus serotinus pachyomus (Tomes, 1857) -- valid
  Eptesicus somalicus (Thomas, 1901) -- invalid -- Somali serotine
  Eptesicus vulturnus Thomas, 1914 -- invalid -- little forest bat
  Equus markhami Tichomirow, 1878 -- invalid
  Equus penricei Thomas, 1900 -- invalid
  Erax benedicti Bromley, 1940 -- invalid
  Erax bexarensis Bromley, 1934 -- invalid
  Erax cannellus Bromley, 1934 -- invalid
  Erax helenae Bromley, 1951 -- invalid
  Erax knowltoni Bromley, 1937 -- invalid
  Erax mesquite Bromley, 1951 -- invalid
  Erax monki Bromley, 1951 -- invalid
  Erax prairiensis Bromley, 1934 -- invalid
  Erax subaridus Bromley, 1940 -- invalid
  Erax tanneri Bromley, 1937 -- invalid
  Erax tricellus Bromley, 1951 -- invalid
  Erax utahensis Bromley, 1937 -- invalid
  Erax vertebratus Bromley, 1940 -- invalid
  Erax wilcoxi Bromley, 1940 -- invalid
  Eremarionta rowelli (Newcomb, 1865) -- valid -- eastern desertsnail
  Eremiasphecium harteni (Simon Thomas, 1994) -- valid
  Eremiasphecium sahelense (Simon Thomas, 1994) -- valid
  Eremitalpa granti (Broom, 1907) -- valid -- Grant's Golden Mole
  Eremitalpa granti granti (Broom, 1907) -- valid
  Eremnophila melanaria (Dahlbom, 1843) -- valid
  Eremomela scotops kikuyuensis Someren, 1931 -- valid
  Eremomela turneri Someren, 1920 -- valid -- Turner's Eremomela
  Eremomela turneri turneri Someren, 1920 -- valid
  Eremopedes bilineatus (Thomas, 1875) -- valid
  Eremulus clavatoflagellatus Lombardini, 1963 -- valid
  Eridaulus Thomson, 1863 -- invalid
  Erisphex aniarus (Thomson, 1967) -- valid
  Eristalis temporalis Thomson, 1869 -- invalid
  Ermetus Ponomarev, 2008 -- valid
  Ermetus inopinabilis Ponomarev, 2008 -- invalid
  Ernobius Thomson, 1859 -- valid
  Ernstmayria venizelosi B. Curcic, Dimitrijevic, Trichas, Tomic and S. Curcic, 2007 -- valid
  Erythrocles scintillans (Jordan and Thompson, 1912) -- valid
  Erythrolamprus atraventer (Dixon and Thomas, 1985) -- valid -- Dixon's Ground Snake
  Esola hirsuta (I. C. Thompson and A. Scott, 1903) -- valid
  Essostrutha Thomson, 1868 -- valid
  Estrilda charmosyna kiwanukae Someren, 1919 -- valid
  Etheostoma chermocki Boschung, Mayden and Tomelleri, 1992 -- valid -- vermilion darter
  Ethmidium Thompson, 1916 -- valid
  Ethmostigmus agasthyamalaiensis Joshi and Edgecombe, 2018 -- valid
  Ethmostigmus praveeni Joshi and Edgecombe, 2018 -- valid
  Ethmostigmus sahyadrensis Joshi and Edgecombe, 2018 -- valid
  Euaesthetinae C. G. Thomson, 1859 -- valid
  Euaresta regularis Norrbom, 1993 -- valid
  Euaresta versicolor Norrbom, 1993 -- valid
  Euarestoides acutangulus (Thomson, 1869) -- valid
  Eubrychius C. G. Thomson, 1859 -- valid
  Eubrychius aquaticus Thomson, 1859 -- invalid
  Eubucco bourcierii anomalus Griscom, 1929 -- valid
  Eucera grandis (Fonscolombe, 1846) -- valid
  Eucera vernalis sintenisi Mavromoustakis, 1952 -- invalid
  Euchlanis triquetra mucronata Ahlstrom, 1934 -- valid
  Eucidaris Pomel, 1883 -- valid
  Eucrassatella gibbesi (Tuomey and Holmes, 1856) -- invalid
  Eudendrocoelum Komarek, 1925 -- invalid
  Eudendrocoelum bohemicum (Komarek and Kunst, 1956) -- invalid
  Eudendrocoelum jablanicense (Stankovic and Komarek, 1927) -- invalid
  Eudendrocoelum subterraneum (Komarek, 1919) -- invalid
  Eudevenopus Thomas and Barnard, 1983 -- valid
  Eudevenopus honduranus Thomas and J. L. Barnard, 1983 -- valid
  Eudioctria propinqua (Bromley, 1924) -- valid
  Eudioxys Mavromoustakis, 1963 -- valid
  Eudioxys schwarzi Mavromoustakis, 1968 -- valid
  Eudontomyzon graecus Renaud and Economidis, 2010 -- valid -- Macedonia brook lamprey
  Eudontomyzon hellenicus Vladykov, Renaud, Kott and Economidis, 1982 -- valid -- Greek brook lamprey, lamproie de ruisseau grecque
  Eudorcas rufina (Thomas, 1894) -- valid -- Red Gazelle
  Eueremaeus cornutus (Lombardini, 1943) -- valid
  Euglossa affinis Dominique, 1898 -- invalid
  Euhyas amadeus (Hedges, Thomas and Franz, 1987) -- invalid
  Euhyas caribe (Hedges and Thomas, 1992) -- invalid
  Euhyas dolomedes (Hedges and Thomas, 1992) -- invalid
  Euhyas griphus (Crombie, 1986) -- invalid
  Euhyas sisyphodema (Crombie, 1977) -- invalid
  Euidotea ocellata Nunomura, 1984 -- invalid
  Eulaima maroniensis Dominique, 1898 -- invalid
  Eulohmannia antonii (Lombardini, 1962) -- valid
  Eulomalus Cooman, 1937 -- valid
  Eulomalus amplipes Cooman, 1937 -- valid
  Eulomalus laevigatus Cooman, 1937 -- valid
  Eulomalus lombokanus Cooman, 1937 -- valid
  Eulomalus mimulus Cooman, 1937 -- valid
  Eulomalus orbatus Cooman, 1937 -- valid
  Eulomalus pupulus Cooman, 1937 -- valid
  Eulomalus seitzi Cooman, 1941 -- valid
  Eulomalus vermicipygus Cooman, 1937 -- valid
  Eumeces dugesii Thominot, 1883 -- valid
  Eumomota superciliosa euroaustris Griscom, 1929 -- valid
  Eumomota superciliosa vanrossemi Griscom, 1929 -- valid
  Eumops bonariensis delticus Thomas, 1923 -- invalid
  Eumops dabbenei Thomas, 1914 -- valid -- Big Bonneted Bat
  Eumops delticus Thomas, 1923 -- valid
  Eumops maurus (Thomas, 1901) -- valid -- Guianan Bonneted Bat
  Eumops patagonicus Thomas, 1924 -- valid -- Patagonian Dwarf Bonneted Bat
  Eumops patagonicus patagonicus Thomas, 1924 -- valid
  Eumops trumbulli (Thomas, 1901) -- valid -- Trumbull's Bonneted Bat
  Eunemobius melodius (Thomas and Alexander, 1957) -- valid
  Euneomys dabbeni Thomas, 1919 -- invalid
  Euneomys fossor (Thomas, 1899) -- valid -- Burrowing chinchilla mouse, Burrowing Euneomys
  Euneomys leucurus Thomas, 1919 -- invalid
  Euneomys micropus alsus Thomas, 1919 -- invalid
  Euneomys mordax Thomas, 1912 -- valid -- Biting Chinchilla Mouse, Large Euneomys
  Euneomys ultimus Thomas, 1916 -- invalid
  Eunoe anderssoni (Bergstrom, 1916) -- valid
  Eupeodes fumipennis (Thomson, 1869) -- valid
  Eupetaurus Thomas, 1888 -- valid
  Eupetaurus cinereus Thomas, 1888 -- valid -- Woolly Flying Squirrel
  Euphilotes enoptes dammersi (J. A. Comstock and Henne, 1933) -- valid -- 'Dammer's ' Dotted Blue
  Euphilotes enoptes mojave (F. Watson and W. Comstock, 1920) -- invalid -- 'Mojave' Dotted Blue
  Euphilotes mojave (F. Watson and W. Comstock, 1920) -- valid
  Euphilotes mojave mojave (F. Watson and W. Comstock, 1920) -- valid
  Euphoria discicollis (Thomson, 1878) -- valid
  Euphoria histrionica Thomson, 1878 -- valid
  Euphoria xanthomelas Thomson, 1878 -- invalid
  Euphractus sexcinctus boliviae (Thomas, 1907) -- valid
  Euphractus sexcinctus tucumanus (Thomas, 1907) -- valid
  Euphranta mexicana Norrbom, 1993 -- valid
  Euphydryas anicia wecoeut M. Fisher, Spomer and Scott, 2006 -- valid
  Euplanaria absoloni (Komarek, 1919) -- invalid
  Euplectes ardens suahelicus (Someren, 1921) -- valid
  Eupolybothrus cavernicolus Komericki and Stoev in Stoev et al., 2013 -- valid
  Eupomacentrus leucostictus (Müller and Troschel in Schomburgk, 1848) -- invalid
  Euprosthiostomum viscosum Palombi, 1936 -- valid
  Eupteromalus nidulans (Thomson) -- valid
  Eurekapnia Stark and Broome in Broome, Stark and Baumann, 2019 -- valid
  Eurhinocricus aequaliramus Loomis, 1975 -- valid
  Eurhinocricus bisinuatus Loomis, 1975 -- valid
  Eurhinocricus cingendus (Loomis, 1937) -- valid
  Eurhinocricus cooki Loomis, 1961 -- valid
  Eurhinocricus granulatus Loomis, 1975 -- valid
  Eurhinocricus townsendi marginandus Loomis, 1975 -- valid
  Eurhinocricus valvatus Loomis, 1975 -- valid
  Eurillas ansorgei kavirondensis (Someren, 1920) -- valid
  Eurillas gracilis ugandae (Someren, 1915) -- valid
  Euroscaptor klossi (Thomas, 1929) -- valid -- Kloss's Mole
  Eurycyde raphiaster Loman, 1912 -- valid
  Eurycyde setigera Loman, 1908 -- invalid
  Eurydice akiyamai Nunomura, 1981B -- valid
  Eurydice longiantennata Nunomura & Ikehara, 1985 -- valid
  Euryleptides Palombi, 1923 -- valid
  Euryleptides brasiliensis Palombi, 1923 -- valid
  Eurylister desbordesi (Cooman, 1930) -- valid
  Eurylister duplicans (Cooman, 1955) -- valid
  Eurylister molestus Cooman, 1955 -- valid
  Eurylister tonkinensis (Cooman, 1956) -- valid
  Eurymerodesmus digitatus Loomis, 1976 -- valid
  Euryopis chatchikovi Ponomarev, 2005 -- valid
  Euryopis clara Ponomarev, 2005 -- valid
  Euryopis clarus Ponomarev, 2005 -- invalid
  Euryoryzomys lamia (Thomas, 1901) -- valid -- Buffy-sided Oryzomys, Monster Rice Rat
  Euryoryzomys legatus (Thomas, 1925) -- valid -- Big-headed Rice Rat, Tarija Oryzomys
  Euryoryzomys macconnelli (Thomas, 1910) -- valid -- MacConnell's Oryzomys, MacConnell's Rice Rat
  Euryoryzomys nitidus (Thomas, 1884) -- valid -- Elegant Oryzomys
  Eurytemora herdmani I. C. Thompson and A. Scott, 1897 -- valid
  Eusirus antarcticus Thomson, 1880 -- valid
  Eusphaeriodesmus bilobatus Loomis, 1972 -- valid
  Eustiromastix nativo Santos & Romero, 2004 -- valid
  Eustomias appositus Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias australensis Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias austratlanticus Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias bertelseni Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias bibulboides Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias bimargaritoides Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias bituberoides Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias cancriensis Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias cirritus Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias contiguus Gomon and Gibbs, 1985 -- valid
  Eustomias crossotus Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias curtatus Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias deofamiliaris Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias digitatus Gomon and Gibbs, 1985 -- valid
  Eustomias dispar Gomon and Gibbs, 1985 -- valid
  Eustomias grandibulbus Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias hulleyi Gomon and Gibbs, 1985 -- valid
  Eustomias hypopsilus Gomon and Gibbs, 1985 -- valid
  Eustomias ignotus Gomon and Gibbs, 1985 -- valid
  Eustomias inconstans Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias kreffti Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias medusa Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias melanostigmoides Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias mesostenus Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias metamelas Gomon and Gibbs, 1985 -- valid
  Eustomias orientalis Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias pacificus Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias perplexus Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias posti Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias precarius Gomon and Gibbs, 1985 -- valid
  Eustomias quadrifilis Gomon and Gibbs, 1985 -- valid
  Eustomias spherulifer Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias suluensis Gibbs, Clarke and Gomon, 1983 -- valid
  Eustomias teuthidopsis Gibbs, Clarke and Gomon, 1983 -- valid
  Eutonina indicans (Romanes, 1876) -- valid
  Eutreta simplex Thomas, 1914 -- valid
  Evaniella huebneri (Roman, 1917) -- valid
  Evaniscus sulcigenis Roman, 1917 -- valid
  Evarcha aposto Wesolowska & Tomasiewicz, 2008 -- valid
  Evarcha awashi Wesolowska & Tomasiewicz, 2008 -- valid
  Evarcha pinguis Wesolowska & Tomasiewicz, 2008 -- valid
  Evarcha rotundibulbis Wesolowska & Tomasiewicz, 2008 -- valid
  Evarcha russellsmithi Wesolowska & Tomasiewicz, 2008 -- valid
  Evippa kazachstanica Ponomarev, 2007 -- valid
  Evotomys bedfordiae Thomas, 1905 -- invalid
  Evotomys frater Thomas, 1908 -- invalid
  Evotomys glareolus saianicus Thomas, 1911 -- invalid
  Evotomys mikado Thomas, 1905 -- invalid
  Evotomys nageri hallucalis Thomas, 1906 -- invalid
  Evotomys ponticus Thomas, 1906 -- invalid
  Evynnis Jordan and Thompson, 1912 -- valid
  Excidobates Twomey and Brown, 2008 -- valid
  Excorallana yamamuroae Nunomura, 1988E -- valid
  Execestides egregius Jordan and Thompson, 1905 -- invalid
  Exechia nitidicollis Lundstrom, 1913 -- valid
  Exilisciurus concinnus (Thomas, 1888) -- valid -- Philippine Pygmy Squirrel
  Exilisciurus whiteheadi (Thomas, 1887) -- valid -- Tufted Pygmy Squirrel
  Exosphaeroma media George & Stromberg, 1968 -- valid
  Falcileptoneta Komatsu, 1970 -- valid
  Falcileptoneta iriei (Komatsu, 1967) -- valid
  Falcileptoneta kugoana (Komatsu, 1961) -- valid
  Falcileptoneta melanocomata (Komatsu, 1961) -- valid
  Falcileptoneta musculina (Komatsu, 1961) -- valid
  Falcileptoneta okinawaensis Komatsu, 1972 -- valid
  Falcileptoneta speciosa (Komatsu, 1957) -- valid
  Falcileptoneta usihanana (Komatsu, 1961) -- valid
  Falcileptoneta zenjoenis (Komatsu, 1965) -- valid
  Falco peregrinus fruitii Momiyama, 1927 -- valid
  Falco sparverius tropicalis (Griscom, 1930) -- valid
  Fannia ochrogaster (Thomson, 1869) -- valid
  Farrodes flavipennis Domínguez, Molineri and Peters, 1996 -- valid
  Farrodes maya Domínguez, 1999 -- valid
  Farrodes mexicanus Domínguez, 1999 -- valid
  Farrodes pakitza Domínguez, Molineri and Peters, 1996 -- valid
  Farrodes savagei Domínguez, 1999 -- valid
  Farrodes tulija Domínguez, Molineri and Peters, 1996 -- valid
  Favorinus blianus Lemche and Thompson, 1974 -- valid
  Faxonius bellator Bloom, McCall, Schuster and Blanton, 2019 -- valid -- Screaming Eagle crayfish
  Faxonius raymondi (Thoma and Stocker, 2009) -- valid
  Fedotovia feti Fomichev & Marusik, 2015 -- valid
  Fedotovia mikhailovi Fomichev & Marusik, 2015 -- valid
  Feia ranta Winterbottom, 2003 -- valid
  Fejervarya chiangmaiensis Suwannapoom, Yuan, Poyarkov, Yan, Kamtaeja, Murphy and Che, 2016 -- invalid
  Fejervarya muangkanensis Suwannapoom, Yuan, Jiang, Yan, Gao and Che, 2017 -- invalid
  Felis chaus fulvidina Thomas, 1929 -- valid
  Felis glaucula Thomas, 1903 -- invalid
  Felis silvestris griselda Thomas, 1926 -- valid
  Felis silvestris haussa Thomas and Hinton, 1921 -- valid
  Felis wiedii glaucula Thomas, 1903 -- invalid
  Felis yagouaroundi tolteca Thomas, 1898 -- invalid
  Fenestraja McEachran and Compagno, 1982 -- valid -- pygmy skates
  Fennellia Loomis, 1941 -- valid
  Fennellia ovipes Loomis, 1941 -- valid
  Ficedula hyperythra rara (Salomonsen, 1977) -- valid
  Ficedula semitorquata (Homeyer, 1885) -- valid -- Semicollared Flycatcher
  Filexilia attenuata (Thompson, 1893) -- valid
  Floridobia F. G. Thompson and Hershler, 2002 -- valid
  Floridobia alexander (F. G. Thompson, 2000) -- valid -- Alexander Siltsnail
  Floridobia fraterna (F. G. Thompson, 1968) -- valid -- Creek Siltsnail
  Floridobia helicogyra (F. G. Thompson, 1968) -- valid -- Crystal Siltsnail
  Floridobia leptospira (F. G. Thompson, 2000) -- valid -- Flatwood Siltsnail
  Floridobia mica (F. G. Thompson, 1968) -- valid -- Ichetucknee Siltsnail
  Floridobia parva (F. G. Thompson, 1968) -- valid -- Pygmy Siltsnail
  Floridobia petrifons (F. G. Thompson, 1968) -- valid -- Rock Springs Siltsnail
  Floridobia ponderosa (F. G. Thompson, 1968) -- valid -- Ponderous Siltsnail
  Floridobia porterae (F. G. Thompson, 2000) -- valid -- Green Cove Springsnail
  Floridobia wekiwae (F. G. Thompson, 1968) -- valid -- Wekiwa Siltsnail
  Foadiini Slipinski, Tomaszewska and Lawrence, 2009 -- valid
  Foerschichthys Scheel and Romand, 1981 -- valid
  Folsomia dentata Folsom, 1927 -- invalid
  Folsomia sylvestrii Folsom, 1937 -- invalid
  Folsomides denisi (Womersley, 1935) -- valid
  Folsomides parvus Folsom, 1934 -- invalid
  Folsomides sexophthalmus (Womersley, 1934) -- valid
  Folsomides stachi Folsom, 1934 -- invalid
  Folsomides viridescens Pomorski, 2001 -- valid
  Fonticola Komarek, 1926 -- invalid
  Fonticola albissima dalmatica Stankovic and Komarek, 1927 -- invalid
  Fonticola albissima illyrica (Komarek, 1919) -- invalid
  Fonticola armeniaca (Komarek, 1916) -- invalid
  Fonticola dalmatica Stankovic and Komarek, 1927 -- invalid
  Fonticola illyrica (Komarek, 1919) -- invalid
  Fonticola ochridana Stankovic and Komarek, 1927 -- invalid
  Forcipomyia johannseni Thomsen, 1935 -- valid
  Fornarina Thomas, 1903 -- invalid
  Francolinus shelleyi macarthuri Someren, 1938 -- valid
  Frankixalus Biju, Senevirathne, Garg, Mahony, Kamei, Thomas, Shouche, Raxworthy, Meegaskumbura et al., 2016 -- invalid
  Frankliniella intonsa (Trybom, 1895) -- valid
  Frankliniella schultzei (Trybom, 1910) -- valid
  Fresnyarhynchus exiguus (Achmerov and Dombrovskaja-Achmerova, 1941) -- invalid
  Fucellia thinobia (Thomson, 1869) -- valid
  Fucomimus mus (Gilchrist and Thompson, 1908) -- valid
  Funisciurus anerythrus (Thomas, 1890) -- valid -- Thomas's Rope Squirrel
  Funisciurus anerythrus anerythrus (Thomas, 1890) -- valid
  Funisciurus anerythrus bandarum Thomas, 1915 -- valid
  Funisciurus anerythrus raptorum Thomas, 1903 -- valid
  Funisciurus carruthersi Thomas, 1906 -- valid -- Carruther's Mountain Squirrel
  Funisciurus carruthersi carruthersi Thomas, 1906 -- valid
  Funisciurus carruthersi chrysippus Thomas, 1923 -- valid
  Funisciurus carruthersi tanganyikae Thomas, 1909 -- valid
  Funisciurus pyrropus leonis Thomas, 1905 -- valid
  Funisciurus pyrropus mandingo Thomas, 1903 -- valid
  Funisciurus pyrropus nigrensis Thomas, 1909 -- valid
  Funisciurus pyrropus niveatus Thomas, 1923 -- valid
  Funisciurus pyrropus pembertoni Thomas, 1904 -- valid
  Funisciurus pyrropus talboti Thomas, 1909 -- valid
  Furcifer angeli (Brygoo and Domergue, 1968) -- valid
  Furcifer belalandaensis (Brygoo and Domergue, 1970) -- valid
  Furcifer petteri (Brygoo and Domergue, 1966) -- valid
  Furcifer tuzetae (Brygoo, Bourgat and Domergue, 1972) -- valid
  Gabaza edashigei (Nagatomi, 1975) -- valid
  Galago crassicaudatus umbrosus Thomas, 1917 -- invalid
  Galago gallarum Thomas, 1901 -- valid -- Somali Bushbaby, Somali galago, Somali Lesser Galago
  Galago granti Thomas and Wroughton, 1907 -- invalid -- Grant's Bushbaby
  Galago medius (Thomas, 1915) -- invalid
  Galago poensis Thomas, 1904 -- invalid
  Galagoides demidoff medius (Thomas, 1915) -- valid -- Uele Dwarf Galago
  Galagoides demidoff poensis (Thomas, 1904) -- valid -- Bioko Dwarf Galago
  Galagoides demidovii medius (Thomas, 1915) -- invalid -- Uele Dwarf Galago
  Galagoides demidovii poensis (Thomas, 1904) -- invalid -- Bioko Dwarf Galago
  Galagoides granti (Thomas and Wroughton, 1907) -- invalid -- Grant's Bushbaby, Mozambique Dwarf Galago
  Galbula leucogastra viridissima Griscom & Greenway, 1937 -- invalid
  Galea musteloides auceps (Thomas, 1911) -- valid
  Galea musteloides demissa Thomas, 1921 -- valid
  Galea musteloides littoralis (Thomas, 1901) -- valid
  Galea spixii palustris (Thomas, 1911) -- valid
  Galenomys Thomas, 1916 -- valid
  Galenomys garleppi (Thomas, 1898) -- valid -- Garlepp's Mouse, Garlepp's Pericote
  Galeopterus Thomas, 1908 -- valid
  Galera barbara brunnea Thomas, 1907 -- invalid
  Galerella ochracea bocagei (Thomas and Wroughton, 1905) -- valid
  Galerella ochracea fulvidior (Thomas, 1904) -- valid
  Galerella ochracea perfulvidus (Thomas, 1904) -- valid
  Galerella pulverulenta ruddi (Thomas, 1903) -- valid
  Galerella sanguinea fulvidior Thomas, 1904 -- valid
  Galerella sanguinea perfulvidus (Thomas, 1904) -- valid
  Galerella sanguinea phoenicurus (Thomas, 1912) -- valid
  Galerella sanguinea proteus (Thomas, 1907) -- valid
  Galerella sanguinea saharae (Thomas, 1925) -- valid
  Galerella sanguinea swalius (Thomas, 1926) -- valid
  Galerella swalius (Thomas, 1926) -- invalid -- Namaqua slender mongoose
  Galericinae Pomel, 1848 -- valid
  Galictis andina Thomas, 1903 -- invalid
  Galictis barbara biologiae Thomas, 1900 -- invalid
  Galictis barbara senex Thomas, 1900 -- invalid
  Galictis cuja furax (Thomas, 1907) -- valid
  Galictis cuja huronax (Thomas, 1921) -- valid
  Galictis cuja luteola (Thomas, 1907) -- valid
  Galictis vittata andina Thomas, 1903 -- valid
  Gallegoides Tenora & Mas-Coma, 1978 -- valid
  Gallirallus conditicius (Peters & Griscom, 1928) -- invalid
  Gamasomorpha kusumii Komatsu, 1963 -- valid
  Gammaracanthus aestuariorum (Lomakina, 1952) -- valid
  Gammarotettix bilobatus (Thomas, 1872) -- valid
  Garra ornata (Nichols and Griscom, 1917) -- valid
  Garrulus glandarius hiugaensis Momiyama, 1927 -- valid
  Gasterosericus drewseni Dahlbom, 1845 -- invalid
  Gastrosericus asilivorus Pulawski in Krombein and Pulawski, 1986 -- valid
  Gastrosericus drewseni Dahlbom, 1845 -- valid
  Gastrosericus tissa Pulawski in Krombein and Pulawski, 1986 -- valid
  Gastrosericus vedda Pulawski in Krombein and Pulawski, 1986 -- valid
  Gastrotheca cuencana Carvajal-Endara, Coloma, Morales-Mite, Guayasamin, Székely and Duellman, 2019 -- valid
  Gastrotheca elicioi Carvajal-Endara, Coloma, Morales-Mite, Guayasamin, Székely and Duellman, 2019 -- valid
  Gastrotheca turnerorum Carvajal-Endara, Coloma, Morales-Mite, Guayasamin, Székely and Duellman, 2019 -- valid
  Gastrotheca yacuri Carvajal-Endara, Coloma, Morales-Mite, Guayasamin, Székely and Duellman, 2019 -- valid
  Gazella leptoceros loderi Thomas, 1894 -- valid
  Gazella rufina Thomas, 1894 -- invalid -- red gazelle
  Gazella subgutturosa marica Thomas, 1897 -- valid -- sand gazelle
  Geckoella collegalensis (Beddome, 1870) -- valid
  Geckoella jeyporensis (Beddome, 1878) -- valid
  Gegeneophis carnosus (Beddome, 1870) -- valid
  Gegeneophis primus Kotharambath, Gower, Oommen and Wilkinson, 2012 -- valid
  Gegeneophis tejaswini Kotharambath, Wilkinson, Oommen and Gower, 2015 -- valid
  Gegenes carnosus (Beddome, 1870) -- invalid
  Gegenophis carnosus (Beddome, 1870) -- invalid
  Gehypochthonius antonii Lombardini, 1962 -- invalid
  Gelonaetha Thomson, 1878 -- valid
  Genetta servalina archeri Van Rompaey and Colyn, 1998 -- valid
  Genetta servalina bettoni Thomas, 1902 -- valid
  Genetta victoriae Thomas, 1901 -- valid -- Giant Forest Genet, giant genet
  Genicanthus watanabei (Yasuda and Tominaga, 1970) -- valid
  Geodipsas vinckei Domergue, 1988 -- invalid
  Geoffroyus heteroclitus (Hombron & Jacquinot, 1841) -- valid -- Singing Parrot
  Geoffroyus heteroclitus heteroclitus (Hombron & Jacquinot, 1841) -- valid
  Geokichla gurneyi chuka (Someren, 1931) -- valid
  Geolycosa Montgomery, 1904 -- valid -- burrowing wolf spiders
  Geolycosa latifrons Montgomery, 1904 -- valid
  Geomys bulleri Thomas, 1892 -- invalid
  Geomys bursarius illinoensis Komarek and Spencer, 1931 -- valid
  Geomys merriami Thomas, 1893 -- invalid
  Geopaludicola Komarek, 1919 -- invalid
  Geopaludicola absoloni Komarek, 1919 -- invalid
  Geophilus hadesi Stoev, Akkari, Komericki, Edgecombe and Bonato, 2015 -- valid
  Geoplana nasuta Loman, 1890 -- invalid
  Geoplana sondaica Loman, 1890 -- invalid
  Georychus capensis canescens Thomas and Schwann, 1906 -- invalid
  Geostiba Thomson, 1858 -- valid
  Geostiba (Geostiba) Thomson, 1858 -- valid
  Geothlypis poliocephala ridgwayi (Griscom, 1930) -- valid
  Geoxus Thomas, 1919 -- valid
  Gephyromantis angano Scherz, Vences, Borelli, Ball, Nomenjanahary, Parker, Rakotondratsima, Razafimandimby et al., 2017 -- valid
  Gephyromantis spinifer (Blommers-Schlösser and Blanc, 1991) -- invalid
  Gephyromantis spiniferus (Blommers-Schlösser and Blanc, 1991) -- valid
  Gerbilliscus Thomas, 1897 -- valid
  Gerbilliscus (Gerbilliscus) Thomas, 1897 -- valid
  Gerbilliscus guineae (Thomas, 1910) -- valid -- Guinea Gerbil, Guinean Gerbil
  Gerbilliscus inclusus (Thomas and Wroughton, 1908) -- valid -- Gorongoza Gerbil
  Gerbillurus vallinus (Thomas, 1918) -- valid -- Brush-tailed Hairy-footed Gerbil, Bushy-tailed Hairy-footed Gerbil
  Gerbillus acticola Thomas, 1918 -- valid -- Berbera Gerbil
  Gerbillus agag Thomas, 1903 -- valid -- Agag Gerbil
  Gerbillus allenbyi Thomas, 1918 -- invalid -- Allenby's gerbil
  Gerbillus bonhotei Thomas, 1919 -- invalid -- Bonhote's gerbil
  Gerbillus brockmani (Thomas, 1910) -- valid -- Brockman's Gerbil
  Gerbillus calidus Thomas, 1918 -- invalid
  Gerbillus cheesmani Thomas, 1919 -- valid -- Cheesman's Gerbil
  Gerbillus dunni Thomas, 1904 -- valid -- Dunn's Gerbil, Somalia Gerbil
  Gerbillus eatoni Thomas, 1902 -- invalid
  Gerbillus famulus Yerbury and Thomas, 1895 -- valid -- Black-tufted Gerbil
  Gerbillus floweri Thomas, 1919 -- valid -- Flower's Gerbil
  Gerbillus harwoodi Thomas, 1901 -- invalid -- Harwood's Gerbil
  Gerbillus latastei Thomas and Trouessart, 1903 -- valid -- Lataste's Gerbil
  Gerbillus lixa Yerbury and Thomas, 1895 -- invalid
  Gerbillus lowei (Thomas and Hinton, 1923) -- invalid -- Lowe's Gerbil
  Gerbillus mackillingini (Thomas, 1904) -- invalid -- Mackillingin's gerbil
  Gerbillus muriculus (Thomas and Hinton, 1923) -- valid -- Barfur gerbil, Darfur Gerbil
  Gerbillus nancillus Thomas and Hinton, 1923 -- valid -- Sudan Gerbil
  Gerbillus nigeriae Thomas and Hinton, 1920 -- valid -- Nigerian Gerbil
  Gerbillus paeba broomi Thomas, 1918 -- invalid
  Gerbillus paeba leucanthus Thomas, 1927 -- invalid
  Gerbillus poecilops Yerbury and Thomas, 1895 -- valid -- Large Aden Gerbil
  Gerbillus principulus (Thomas and Hinton, 1923) -- valid -- Principal Gerbil
  Gerbillus riggenbachi Thomas, 1903 -- invalid -- Riggenbach's gerbil
  Gerbillus sellysii Pomel, 1856 -- invalid
  Gerbillus somalicus (Thomas, 1910) -- invalid -- Somalian Gerbil
  Gerbillus swalius Thomas and Hinton, 1925 -- invalid
  Gerbillus tarabuli Thomas, 1902 -- valid -- Tarabul's Gerbil
  Gerbillus vivax (Thomas, 1902) -- valid -- Vivacious Gerbil
  Gerrhopilidae Vidal, Marin, Morini, Donnellan, Branch, Thomas et al., 2010 -- valid
  Gibberosus Thomas and J. L. Barnard, 1986 -- valid
  Gibberosus devaneyi Thomas and J. L. Barnard, 1986 -- valid
  Gillias capensis (Gilchrist and Thompson, 1908) -- invalid -- false tripletail, false tripletail
  Giraffa camelopardalis peralta Thomas, 1898 -- valid -- West African Giraffe
  Gladicosa euepigynata (Montgomery, 1904) -- valid
  Glaenocorisa Thomson, 1869 -- valid
  Glaenocorisa cavifrons (Thomson, 1869) -- invalid
  Glaenocorisa propinqua cavifrons (Thomson, 1869) -- valid
  Glaenocorixa Thomson, 1869 -- invalid
  Glaenocorixa cavifrons (Thomson, 1869) -- invalid
  Glaucidium griseiceps rarum Griscom, 1931 -- invalid
  Glaucomys Thomas, 1908 -- valid -- American flying squirrels, New World Flying Squirrels
  Glauconycteris beatrix Thomas, 1901 -- valid -- Beatrix Butterfly Bat, Beatrix's bat
  Glauconycteris egeria Thomas, 1913 -- valid -- Bibundi bat, Bibundi Butterfly Bat
  Glauconycteris phalaena Thomas, 1915 -- invalid
  Glauconycteris variegata (Tomes, 1861) -- valid -- Variegated Butterfly Bat
  Glauconycteris variegata phalaena Thomas, 1915 -- valid
  Glauconycteris variegata variegata (Tomes, 1861) -- valid
  Gliriscus Thomas and Hinton, 1925 -- invalid
  Glironia Thomas, 1912 -- valid
  Glironia venusta Thomas, 1912 -- valid -- Bushy-tailed Opossum
  Glirulus Thomas, 1906 -- valid
  Glis glis spoliatus Thomas, 1906 -- invalid
  Glis melonii Thomas, 1907 -- invalid
  Gloiopotes huttoni (G. M. Thomson, 1889) -- valid
  Glomeridesmus albiceps Loomis, 1975 -- valid
  Glomeridesmus angulosus Loomis, 1948 -- valid
  Glomeridesmus bicolor Loomis, 1964 -- valid
  Glomeridesmus circularis Loomis, 1964 -- valid
  Glomeridesmus jenkinsi Loomis, 1936 -- valid
  Glomeridesmus latus Loomis, 1961 -- valid
  Glomeridesmus pectinatus Loomis, 1941 -- valid
  Glomeridesmus rotundatus Loomis, 1964 -- valid
  Glossobius ogasawarensis Nunomura, 1992C -- valid
  Gloydius Hoge and Romano-Hoge, 1981 -- valid
  Glyphisodon albofasciatus Hombron and Jacquinot in Jacquinot and Guichenot, 1853 -- invalid
  Glyphisodon nivosus Hombron and Jacquinot in Jacquinot and Guichenot, 1853 -- invalid
  Glyphisodon orbicularis Hombron and Jacquinot in Jacquinot and Guichenot, 1853 -- invalid
  Glyphisodon taurus Müller and Troschel in Schomburgk, 1848 -- invalid
  Glyphonycteris Thomas, 1896 -- valid
  Glyphonycteris sylvestris Thomas, 1896 -- valid -- tri-colored big-eared bat, Tricolored Bat
  Glyphotes Thomas, 1898 -- valid
  Glyphotes simus Thomas, 1898 -- valid -- Sculptor Squirrel
  Glyptapanteles nigerrimus (Roman, 1924) -- valid
  Glyptaster Sladen, 1885 in Thomson & Murray, 1885 -- invalid
  Gnaphalodes Thomson, 1860 -- valid
  Gnaphalodes trachyderoides Thomson, 1860 -- valid
  Gnaphosa aksuensis Fomichev, 2019 -- valid
  Gnaphosa cumensis Ponomarev, 1981 -- valid
  Gnaphosa deserta Ponomarev & Dvadnenko, 2011 -- valid
  Gnaphosa donensis Ponomarev, 2015 -- valid
  Gnaphosa esyunini Marusik, Fomichev & Omelko, 2014 -- valid
  Gnaphosa khovdensis Marusik, Fomichev & Omelko, 2014 -- valid
  Gnaphosa koponeni Marusik & Omelko, 2014 -- valid
  Gnaphosa mataica Fomichev, 2019 -- valid
  Gnaphosa prashkevichi Fomichev, 2019 -- valid
  Gnaphosa serzonshteini Fomichev & Marusik, 2017 -- valid
  Gnaphosa tunevae Marusik & Omelko, 2014 -- valid
  Gnathagnus egregius (Jordan and Thompson, 1905) -- invalid -- freckled stargazer
  Gnathanthidium prionognathum (Mavromoustakis, 1935) -- valid
  Gnathia bungoensis Nunomura, 1982B -- valid
  Gnathia hirayamai Nunomura, 1992D -- valid
  Gnathobagrus Nichols and Griscom, 1917 -- valid
  Gnathobagrus depressus Nichols and Griscom, 1917 -- valid
  Gnatholebias hoignei (Thomerson, 1974) -- valid
  Gnorimosphaeroma paradoxa (Nunomura, 1988B) -- valid
  Gnypeta Thomson, 1858 -- valid
  Gobiodon acicularis Harold and Winterbottom, 1995 -- valid
  Gobiodon brochus Harold and Winterbottom, 1999 -- valid
  Gogolia Compagno, 1973 -- valid
  Gogolia filewoodi Compagno, 1973 -- valid -- sailback houndshark
  Golfingia nicolasi Thompson, 1980 -- invalid
  Gollum Compagno, 1973 -- valid
  Golofa imperialis Thomson, 1858 -- valid
  Golunda ellioti bombax Thomas, 1923 -- invalid
  Golunda ellioti coenosa Thomas, 1923 -- invalid
  Golunda ellioti coraginis Thomas, 1923 -- invalid
  Golunda ellioti gujerati Thomas, 1923 -- invalid
  Golunda ellioti limitaris Thomas, 1923 -- invalid
  Golunda ellioti paupera Thomas, 1923 -- invalid
  Gomesophis brasiliensis (Gomes, 1918) -- valid -- Brazilian Burrowing Snake
  Goniaster templetoni Thomson in Forbes, 1839 -- invalid
  Goniocercus Insom and Carfi, 1988 -- valid
  Goniopecten bifrons (Wyville Thomson, 1873) -- invalid
  Gonypodaria nodosa (Lomas, 1886) -- invalid
  Gordionus alascensis (Montgomery, 1907) -- invalid
  Gordionus densareolatus (Montgomery, 1898) -- valid
  Gordionus longareolatus (Montgomery, 1898) -- valid
  Gordionus platycephalus (Montgomery, 1898) -- valid
  Gordius agassizi Montgomery, 1898 -- invalid
  Gordius alascensis Montgomery, 1907 -- valid
  Gordius aquaticus difficilis Montgomery, 1898 -- invalid
  Gordius capitosulcatus Montgomery, 1898 -- invalid
  Gordius densareolatus Montgomery, 1898 -- invalid
  Gordius difficilis Montgomery, 1898 -- valid
  Gordius leidyi Montgomery, 1898 -- invalid
  Gordius longareolatus Montgomery, 1898 -- invalid
  Gordius platycephalus Montgomery, 1898 -- invalid
  Gordius villoti difficilis Montgomery, 1898 -- invalid
  Gorgonolaureus Utinomi, 1962 -- valid
  Gorgorhynchidae Van Cleave and Lincicome, 1940 -- invalid
  Gorgorhynchinae Van Cleave and Lincicome, 1940 -- valid
  Gorytes deceptor Krombein, 1958 -- valid
  Gorytes dorothyae Krombein, 1950 -- valid
  Gorytes dorothyae dorothyae Krombein, 1954 -- valid
  Gorytes dorothyae russeolus Krombein, 1954 -- valid
  Gorytes lunatus (Dahlbom, 1832) -- invalid
  Gorytes mcateei Krombein and R. Bohart, 1962 -- valid
  Gorytes seminiger (Dahlbom, 1843) -- invalid
  Gosiulus ambiguus (Loomis, 1959) -- valid
  Gosiulus nati (Loomis, 1963) -- valid
  Gracilinanus dryas (Thomas, 1898) -- valid -- Wood Sprite Gracile Opossum
  Gracilinanus emiliae (Thomas, 1909) -- valid -- Emilia's Gracile Opossum
  Gracilinanus marica (Thomas, 1898) -- valid -- Northern Gracile Opossum
  Grallaria ridgelyi Krabbe, Agro, Rice, Jacome, Navarrete & Sornoza, 1999 -- valid
  Grammomys Thomas, 1915 -- valid -- African Thicket Rats
  Grammomys aridulus Thomas and Hinton, 1923 -- valid -- Arid Woodland Grammomys
  Grammomys buntingi (Thomas, 1911) -- valid -- Bunting's Grammomys
  Grammomys cometes (Thomas and Wroughton, 1908) -- valid -- Mozambique Grammomys
  Grammomys dryas (Thomas, 1907) -- valid -- Albertine Rift Grammomys
  Grammomys kuru (Thomas and Wroughton, 1907) -- valid -- Eastern Rainforest Grammomys
  Grammoptera Thomson, 1864 -- invalid
  Grammostola diminuta Ferretti, Pompozzi, González & Pérez-Miles, 2013 -- valid
  Graomys Thomas, 1916 -- valid -- Leaf-eared Mice
  Graomys centralis (Thomas, 1902) -- valid -- Central Pericote
  Graomys domorum (Thomas, 1902) -- valid -- Pale Leaf-eared Mouse, Pale Pericote
  Graomys edithae Thomas, 1919 -- valid -- Edith's Leaf-eared Mouse, Otro Cerro Pericote
  Graomys lockwoodi Thomas, 1918 -- invalid
  Graomys medius Thomas, 1919 -- invalid
  Graphelmis shirahatai (Nomura, 1958) -- valid
  Graphiurus johnstoni (Thomas, 1898) -- valid -- Johnston's African Dormouse
  Graphiurus olga (Thomas, 1925) -- invalid -- Olga's Dormouse
  Graphiurus platyops Thomas, 1897 -- valid -- Flat-headed African Dormouse, Rock Dormouse
  Graphiurus rupicola (Thomas and Hinton, 1925) -- valid -- Rupicolous African Dormouse, Stone Dormouse
  Grison furax Thomas, 1907 -- invalid
  Grison furax luteolus Thomas, 1907 -- invalid
  Grison furax melinus Thomas, 1912 -- invalid
  Grisonella huronax Thomas, 1921 -- invalid
  Grisonella ratellina Thomas, 1921 -- invalid
  Grisonella shiptoni Thomas, 1926 -- invalid
  Grouvellinus babai Nomura, 1963 -- valid
  Grouvellinus babai babai Nomura, 1963 -- valid
  Grouvellinus nitidus Nomura, 1963 -- valid
  Grouvellinus subopacus Nomura, 1962 -- valid
  Grundulus cochae Román-Valencia, Paepke and Pantoja, 2003 -- valid
  Grypomys Thomas, 1911 -- invalid
  Guaranidrilus lamottei Omodeo, 1958 -- valid
  Guibemantis albolineatus (Blommers-Schlösser and Blanc, 1991) -- valid
  Guibemantis flavobrunneus (Blommers-Schlösser, 1979) -- valid
  Guibemantis punctatus (Blommers-Schlösser, 1979) -- valid
  Guineoscolex coronatus (Omodeo, 1958) -- valid
  Guineoscolex mammillatus (Omodeo, 1963) -- valid
  Guineoscolex microscolecinus (Omodeo, 1958) -- valid
  Guineoscolex minusculus (Omodeo, 1958) -- valid
  Guineoscolex nimbai (Omodeo, 1958) -- valid
  Guiraca caerulea interfusa (Dwight & Griscom, 1927) -- invalid
  Gulocosa Marusik, Omelko & Koponen, 2015 -- valid
  Gulocosa eskovi Marusik, Omelko & Koponen, 2015 -- valid
  Gunomys Thomas, 1907 -- invalid
  Gunomys varillus Thomas, 1907 -- invalid
  Gunomys varius Thomas, 1907 -- invalid
  Guthriella antigua Folsom, 1937 -- invalid
  Guyia Thomas, 1917 -- invalid
  Gylippus krivokhatskyi Gromov, 1998 -- valid
  Gymnallabes alvarezi Roman, 1970 -- valid
  Gymnocarena angusta Norrbom, 1992 -- valid
  Gymnocarena apicata (Thomas, 1914) -- valid
  Gymnocarena carinata Norrbom, 1992 -- valid
  Gymnocarena fusca Norrbom, 1992 -- valid
  Gymnocarena hernandezi Norrbom, 1992 -- valid
  Gymnocarena magna Norrbom, 1992 -- valid
  Gymnocarena mississippiensis Norrbom, 1992 -- valid
  Gymnocarena serrata Norrbom, 1992 -- valid
  Gymnogobius cylindricus (Tomiyama, 1936) -- valid
  Gymnomyza samoensis (Hombron & Jacquinot, 1841) -- valid -- Mao
  Gymnopternus metatarsalis (Thomson, 1869) -- valid
  Gymnura natalensis (Gilchrist and Thompson, 1911) -- valid
  Gyniulus Loomis, 1963 -- valid
  Gyniulus domesticus Loomis, 1968 -- valid
  Gyniulus lacustrinus Loomis, 1968 -- valid
  Gyniulus myakkensis Loomis, 1963 -- valid
  Gyomys Thomas, 1910 -- invalid
  Gyrothyris Thomson, 1918 -- valid
  Habia atrimaxillaris (Dwight & Griscom, 1924) -- valid -- Black-cheeked Ant Tanager, Black-cheeked Ant-Tanager
  Habia rubica hesterna Griscom & Greenway, 1937 -- valid
  Habia rubica holobrunnea Griscom, 1930 -- valid
  Hadraule Thomson, 1863 -- valid
  Hadrestia Thomson, 1869 -- valid
  Hadrestia aenea Thomson, 1869 -- valid
  Hadrobregmus Thomson, 1859 -- valid
  Hadrokolos texanus (Bromley, 1934) -- valid
  Hadromys Thomas, 1911 -- valid
  Hadromys humei (Thomas, 1886) -- valid -- Hume's Hadromys, Hume's Rat
  Haemaphysalis bochkovi D. Apanaskevich and Tomlinson, 2019 -- valid
  Haemaphysalis burkinae D. Apanaskevich and Tomlinson, 2019 -- valid
  Haemaphysalis camicasi Tomlinson and D. Apanaskevich, 2019 -- valid
  Haemaphysalis horaki D. Apanaskevich and Tomlinson, 2019 -- valid
  Haemaphysalis pavlovskyi Pospelova-Shtrom, 1935 -- valid
  Haemaphysalis pentalagi Pospelova-Shtrom, 1935 -- valid
  Haemaphysalis princeps Tomlinson and D. Apanaskevich, 2019 -- valid
  Haemaphysalis walkerae D. Apanaskevich and Tomlinson, 2019 -- valid
  Haemorhous mexicanus potosinus (Griscom, 1928) -- valid
  Haeromys Thomas, 1911 -- valid -- Ranee Mice
  Haeromys margarettae (Thomas, 1893) -- valid -- Margaret's Haeromys
  Haeromys minahassae (Thomas, 1896) -- valid -- Lowland Sulawesi Haeromys
  Haeromys pusillus (Thomas, 1893) -- valid -- Sundaic Haeromys
  Hahnia sexoculata Ponomarev, 2009 -- valid
  Haitobolus lethifer (Loomis, 1936) -- valid
  Hakiulus occidentalis Loomis, 1975 -- valid
  Halacritus averyi Gomy, 1978 -- valid
  Halacritus beneteaui Gomy, 1978 -- valid
  Halacritus blackwelderi pacificus Gomy, 1989 -- valid
  Halacritus capensis Gomy, 1989 -- valid
  Halacritus caracciolii Gomy, 1989 -- valid
  Halacritus cauchei Gomy, 1978 -- valid
  Halacritus condenti Gomy, 1989 -- valid
  Halacritus courayei Gomy, 2004 -- valid
  Halacritus kidi Gomy, 1978 -- valid
  Halacritus labusei Gomy, 1978 -- valid
  Halacritus marthoti Gomy, 1976 -- valid
  Halacritus missoni Gomy, 1978 -- valid
  Halacritus missoni missoni Gomy, 1978 -- valid
  Halacritus missoni orientalis Gomy, 1978 -- valid
  Halacritus regimondi Gomy, 1978 -- valid
  Halacritus surcoufi Gomy, 1978 -- valid
  Halichaetonotus aculifer adriatica Schrom, 1972 -- valid
  Halichaetonotus riedli Schrom, 1972 -- valid
  Halichaetonotus swedmarki Schrom, 1972 -- valid
  Halichoeres maculipinna (Müller and Troschel in Schomburgk, 1848) -- valid -- clown wrasse, doncella payaso
  Halidesmus coccus Winterbottom and Randall, 1994 -- valid
  Halidesmus polytretus Winterbottom, 1982 -- valid
  Halieutaea fitzsimonsi (Gilchrist and Thompson, 1916) -- valid -- circular seabat
  Halimuraena lepopareia Winterbottom, 1980 -- valid
  Halimuraena shakai Winterbottom, 1978 -- valid
  Haliophis aethiopus Winterbottom, 1985 -- valid
  Haliophis diademus Winterbottom and Randall, 1994 -- valid
  Halobrecta Thomson, 1858 -- valid
  Halobrecta flavipes Thomson, 1861 -- valid
  Hammatoscelis nigripennis (Fairmaire in Thompson, 1858) -- valid
  Handleyomys intectus (Thomas, 1921) -- valid -- Colombian Rice Rat, White-footed Handley's Mouse
  Hapalogenys merguiensis Iwatsuki, Satapoomin and Amaoka, 2000 -- valid
  Hapalomys delacouri Thomas, 1927 -- valid -- Lesser Marmoset Rat
  Hapalomys pasquieri Thomas, 1927 -- invalid
  Hapalopus aymara Perdomo, Panzera & Pérez-Miles, 2009 -- valid
  Haplocyclodesmus angustipes (Loomis, 1936) -- valid
  Haplocyclodesmus crassartus (Loomis, 1936) -- valid
  Haplocyclodesmus enneryensis (Loomis, 1936) -- valid
  Haplocyclodesmus falcarius (Loomis, 1936) -- valid
  Haplocyclodesmus globulus (Loomis, 1936) -- valid
  Haplocyclodesmus incisus (Loomis, 1936) -- valid
  Haplocyclodesmus insulanus (Loomis, 1936) -- valid
  Haplocyclodesmus irretitus (Loomis, 1937) -- valid
  Haplocyclodesmus montanus (Loomis, 1936) -- valid
  Haplocyclodesmus nudatus (Loomis, 1936) -- valid
  Haplocyclodesmus obesus Loomis, 1936 -- valid
  Haplocyclodesmus rubellus (Loomis, 1936) -- valid
  Haplocyclodesmus setosus (Loomis, 1936) -- valid
  Haplodrassus alexeevi Ponomarev & Shmatko, 2017 -- valid
  Haplodrassus caspius Ponomarev & Belosludtsev, 2008 -- valid
  Haplodrassus caucasius Ponomarev & Dvadnenko, 2013 -- valid
  Haplodrassus isaevi Ponomarev & Tsvetkov, 2006 -- invalid
  Haplodrassus ivlievi Ponomarev, 2015 -- valid
  Haplodrassus ovtchinnikovi Ponomarev, 2008 -- valid
  Haplopogon bullatus (Bromley, 1934) -- valid
  Haplotrema duranti (Newcomb, 1864) -- valid -- ribbed lancetooth
  Haplotrema voyanum (Newcomb, 1864) -- valid -- hooded lancetooth
  Harpactes Dahlbom, 1843 -- invalid
  Harpactes lunatus (Dahlbom, 1832) -- invalid
  Harpactes sanguinans Dominique, 1901 -- invalid
  Harpactopus subfuscatus (Dahlbom, 1845) -- invalid
  Harpactus brevicornis Ljubomirov and Schmid-Egger, 2014 -- valid
  Harpactus citipes (Krombein, 1954) -- valid
  Harpactus lunatus (Dahlbom, 1832) -- valid
  Harpactus priscus Ljubomirov, 2001 -- valid
  Harpagifer spinosus Hureau, Louis, Tomo and Ozouf, 1980 -- valid
  Harpagonopus Loomis, 1960 -- valid
  Harpagonopus confluentus Loomis, 1960 -- valid
  Harpiocephalus feae Thomas, 1891 -- invalid
  Harpiocephalus harpia madrassius Thomas, 1923 -- valid
  Harpiocephalus mordax Thomas, 1923 -- valid -- Greater Hairy-winged Bat
  Harpiola Thomas, 1915 -- valid
  Harpyionycteris Thomas, 1896 -- valid
  Harpyionycteris whiteheadi Thomas, 1896 -- valid -- Harpy Fruit Bat, Philippine Harpy Fruit Bat
  Harpyionycteris whiteheadi whiteheadi Thomas, 1896 -- valid
  Haywardina bimaculata Norrbom, 1994 -- valid
  Haywardina obscura Norrbom, 1994 -- valid
  Healyella Omodeo & Rota, 1989 -- valid
  Healyella boluana Omodeo & Rota, 1989 -- valid
  Healyella mariae Omodeo & Rota, 1989 -- valid
  Healyella michaelseni Omodeo & Rota, 1989 -- valid
  Healyella naja Omodeo & Rota, 1989 -- valid
  Healyella zapparolii Omodeo & Rota, 1989 -- valid
  Hebestolitae Thomson, 1864 -- invalid
  Hebius Thompson, 1913 -- valid
  Hebrus ruficeps Thomson, 1871 -- valid
  Hebrus ruficeps ruficeps Thomson, 1871 -- valid
  Hedgpethia articulata (Loman, 1908) -- valid
  Hedgpethia dofleini (Loman, 1911) -- valid
  Helcogrammoides antarcticus (Tomo, 1982) -- valid
  Heleobops F. G. Thompson, 1968 -- valid
  Heleobops docimus F. G. Thompson, 1968 -- valid -- Oolite Hydrobe
  Heliconius charithonia tuckeri W. Comstock and F. Brown, 1950 -- valid
  Heliconius charithonia vazquezae W. Comstock and F. Brown, 1950 -- valid
  Helictis everetti Thomas, 1895 -- invalid
  Helictis millsi Thomas, 1922 -- invalid
  Helictis subaurantiaca modesta Thomas, 1922 -- invalid
  Helictis taxilla Thomas, 1925 -- invalid
  Heliophobius argenteocinereus angonicus Thomas, 1917 -- valid
  Heliophobius argenteocinereus robustus Thomas, 1906 -- valid
  Heliophobius argenteocinereus spalax Thomas, 1910 -- valid
  Heliosciurus gambianus canaster Thomas and Hinton, 1923 -- valid
  Heliosciurus gambianus elegans Thomas, 1909 -- valid
  Heliosciurus gambianus lateris (Thomas, 1909) -- valid
  Heliosciurus gambianus loandicus Thomas, 1923 -- valid
  Heliosciurus gambianus omensis (Thomas, 1904) -- valid
  Heliosciurus gambianus senescens Thomas, 1909 -- valid
  Heliosciurus punctatus savannius Thomas, 1923 -- valid
  Heliosciurus rufobrachium caurinus Thomas, 1923 -- valid
  Heliosciurus rufobrachium coenosus (Thomas, 1909) -- valid
  Heliosciurus rufobrachium emissus Thomas, 1923 -- valid
  Heliosciurus rufobrachium hardyi Thomas, 1923 -- valid
  Heliosciurus rufobrachium leonensis Thomas, 1923 -- valid
  Heliosciurus rufobrachium lualabae Thomas, 1923 -- valid
  Heliosciurus rufobrachium obfuscatus Thomas, 1923 -- valid
  Heliosciurus rufobrachium semlikii Thomas, 1907 -- valid
  Heliosciurus ruwenzorii vulcanius Thomas, 1909 -- valid
  Helminthoglypta ayresiana (Newcomb, 1861) -- valid -- San Miguel shoulderband
  Helminthoglypta carpenteri (Newcomb, 1861) -- valid -- San Joaquin shoulderband, san juaquin shoulderband
  Helminthoglypta traskii (Newcomb, 1861) -- valid -- peninsular range shoulderband