Integrated Taxonomic Information System - Taxon Author Search Results

Publication: Wilson, Don E., and DeeAnn M. Reeder, eds. 1992 Mammal Species of the World: A Taxonomic and Geographic Reference, 2nd ed., 3rd printing xviii + 1207

ITIS records citing this publication
 
 Kingdom Animalia
  Abditomys Musser, 1982 -- valid
  Abditomys latidens (Sanborn, 1952) -- valid -- Luzon Broad-toothed Rat
  Abrawayaomys Cunha and Cruz, 1979 -- valid
  Abrawayaomys ruschii Cunha and Cruz, 1979 -- valid -- Ruschi's Rat
  Abrocoma Waterhouse, 1837 -- valid -- chinchilla rats
  Abrocoma bennettii Waterhouse, 1837 -- valid -- Bennett's Chinchilla Rat
  Abrocoma boliviensis Glanz and Anderson, 1990 -- valid -- Bolivian Chinchilla Rat
  Abrocoma cinerea Thomas, 1919 -- valid -- Ashy Chinchilla Rat
  Abrocomidae Miller and Gidley, 1918 -- valid -- chinchilla rats, Inca rats
  Acanthonotus Goldfuss, 1809 -- invalid
  Acerodon Jourdan, 1837 -- valid
  Acerodon celebensis (Peters, 1867) -- valid -- Sulawesi Fruit Bat, Sulawesi Flying Fox
  Acerodon humilis K. Andersen, 1909 -- valid -- Talaud Fruit Bat, Talaud Flying Fox
  Acerodon jubatus (Eschscholtz, 1831) -- valid -- Golden-capped Fruit Bat, Golden-capped Flying Fox
  Acerodon leucotis (Sanborn, 1950) -- valid -- Palawan Fruit Bat, Palawan Flying Fox
  Acerodon lucifer (Elliot, 1896) -- invalid -- Panay golden-capped fruit bat
  Acerodon mackloti (Temminck, 1837) -- invalid -- Sunda Fruit Bat
  Acinonychinae Pocock, 1917 -- invalid
  Acinonyx Brookes, 1828 -- valid
  Acinonyx jubatus (Schreber, 1775) -- valid -- Cheetah, Guépard, Guepardo, chita
  Acinonyx rex Pocock, 1927 -- invalid
  Acomys I. Geoffroy, 1838 -- valid -- African Spiny Mice
  Acomys cahirinus (Desmarest, 1819) -- invalid
  Acomys cilicicus Spitzenberger, 1978 -- valid -- Turkish Spiny Mouse
  Acomys cineraceus Fitzinger and Heuglin, 1866 -- valid -- Gray Spiny Mouse
  Acomys ignitus Dollman, 1910 -- valid -- Fiery Spiny Mouse
  Acomys kempi Dollman, 1911 -- valid -- Kemp's Spiny Mouse
  Acomys louisae Thomas, 1896 -- valid -- Louise's Spiny Mouse
  Acomys minous Bate, 1906 -- valid -- Crete Spiny Mouse
  Acomys mullah Thomas, 1904 -- valid -- Mullah Spiny Mouse
  Acomys nesiotes Bate, 1903 -- valid -- Cyprus Spiny Mouse
  Acomys percivali Dollman, 1911 -- valid -- Percival's Spiny Mouse
  Acomys russatus (Wagner, 1840) -- valid -- Golden Spiny Mouse
  Acomys spinosissimus Peters, 1852 -- valid -- Southern African Spiny Mouse
  Acomys subspinosus (Waterhouse, 1838) -- valid -- Cape Spiny Mouse
  Acomys wilsoni Thomas, 1892 -- valid -- Wilson's Spiny mouse
  Aconaemys Ameghino, 1891 -- valid -- rock rats
  Aconaemys fuscus (Waterhouse, 1842) -- valid -- Chilean Rock Rat
  Aconaemys sagei Pearson, 1984 -- valid -- Sage's Rock Rat
  Acrobates Desmarest, 1818 -- valid
  Acrobates pygmaeus (Shaw, 1793) -- valid -- Feather-tailed Glider, Narrow-toed Feather-tailed Glider
  Acrobatidae Aplin, 1987 -- valid -- feather-tailed gliders, feather-tailed possum
  Addax Rafinesque, 1815 -- invalid
  Addax nasomaculatus (Blainville, 1816) -- valid -- Addax, addax
  Aepeomys Thomas, 1898 -- valid -- Montane Mice
  Aepeomys fuscatus J. A. Allen, 1912 -- invalid -- Dusky Montane Mouse
  Aepeomys lugens (Thomas, 1896) -- valid -- Olive Montane Mouse, Mérida Aepeomys
  Aepyceros Sundevall, 1847 -- valid
  Aepyceros melampus (Lichtenstein, 1812) -- valid -- impala, Impala
  Aepycerotinae Gray, 1872 -- valid
  Aepyprymnus Garrod, 1875 -- valid -- rufous rat-kangaroos
  Aepyprymnus rufescens (Gray, 1837) -- valid -- Rufous Rat-kangaroo, rufous 'rat'-kangaroo, Rufous Bettong
  Aeretes G. M. Allen, 1940 -- valid
  Aeretes melanopterus (Milne-Edwards, 1867) -- valid -- Northern Chinese Flying Squirrel, groove-toothed flying squirrel
  Aeromys Robinson and Kloss, 1915 -- valid -- Large Black Flying Squirrels
  Aeromys tephromelas (Günther, 1873) -- valid -- Black Flying Squirrel
  Aeromys thomasi (Hose, 1900) -- valid -- Thomas's Flying Squirrel
  Aethalops Thomas, 1923 -- valid
  Aethalops alecto (Thomas, 1923) -- valid -- Pygmy Fruit Bat, Common Pygmy Fruit Bat
  Aethiops Martin, 1841 -- invalid
  Aethomys Thomas, 1915 -- valid -- African Rock Rats
  Aethomys bocagei (Thomas, 1904) -- valid -- Bocage's Aethomys
  Aethomys chrysophilus (de Winton, 1897) -- valid -- Red Veld Aethomys
  Aethomys granti (Wroughton, 1908) -- invalid
  Aethomys hindei (Thomas, 1902) -- valid -- Hinde's Aethomys
  Aethomys kaiseri (Noack, 1887) -- valid -- Kaiser's Aethomys
  Aethomys namaquensis (A. Smith, 1834) -- invalid
  Aethomys nyikae (Thomas, 1897) -- valid -- Nyika Aethomys
  Aethomys silindensis Roberts, 1938 -- valid -- Seilinda Aethomys
  Aethomys stannarius (Thomas, 1913) -- valid -- West African Aethomys
  Aethomys thomasi (de Winton, 1897) -- valid -- Thomas's Aethomys
  Aethurus de Winton, 1898 -- invalid
  Agouti Lacépède, 1799 -- invalid
  Agouti paca (Linnaeus, 1766) -- invalid -- Tepezcuintle
  Agouti taczanowskii (Stolzmann, 1865) -- invalid
  Agoutidae Gray, 1821 -- invalid
  Ailurinae Gray, 1843 -- invalid
  Ailuropoda A. Milne-Edwards, 1870 -- valid -- Giant Panda, Panda Bear
  Ailuropoda melanoleuca (David, 1869) -- valid -- Giant Panda, Great Panda, Parti-colored Bear, Bamboo Bear, Panda Bear, White Bear
  Ailurops Wagler, 1830 -- valid
  Ailurops ursinus (Temminck, 1824) -- valid -- Sulawesi Bear Cuscus, Common Bear Cuscus
  Ailurus F. G. Cuvier, 1825 -- valid -- Red Pandas
  Ailurus fulgens F. G. Cuvier, 1825 -- valid -- Red Panda, Himalayan Red Panda, Western Red Panda
  Akodon Meyen, 1833 -- valid -- Grass Mice
  Akodon aerosus Thomas, 1913 -- valid -- Highland Grass Mouse, Yungas Akodont
  Akodon affinis (J. A. Allen, 1912) -- valid -- Colombian Grass Mouse, Cordillera Occidental Akodont
  Akodon albiventer Thomas, 1897 -- valid -- White-bellied Grass Mouse, White-bellied Akodont
  Akodon azarae (Fischer, 1829) -- valid -- Azara's Grass Mouse, Azara's Akodont
  Akodon bogotensis (Thomas, 1895) -- invalid -- Bogota Grass Mouse, Bogotá Akodont
  Akodon boliviensis Meyen, 1833 -- valid -- Bolivian Grass Mouse, Bolivian Akodont
  Akodon budini (Thomas, 1918) -- valid -- Budin's Grass Mouse, Budin's Akodont
  Akodon cursor (Winge, 1887) -- valid -- Cursor Grass Mouse, Cursorial Akodont
  Akodon dayi Osgood, 1916 -- valid -- Day's Grass Mouse, Dusky Akodont
  Akodon dolores Thomas, 1916 -- valid -- Dolorous Grass Mouse, Córdoba Akodont
  Akodon fumeus Thomas, 1902 -- valid -- Smoky Grass Mouse, Smoky Akodont
  Akodon hershkovitzi Patterson, Gallardo and Freas, 1984 -- invalid -- Hershkovitz's Grass Mouse
  Akodon illuteus (Thomas, 1925) -- invalid -- Gray Grass Mouse
  Akodon iniscatus Thomas, 1919 -- valid -- Intelligent Grass Mouse, Patagonian Akodont
  Akodon juninensis Myers, Patton and M. F. Smith, 1990 -- valid -- Junín Grass Mouse, Junín Akodont
  Akodon kempi (Thomas, 1917) -- invalid -- Kemp's Grass Mouse
  Akodon kofordi Myers and Patton, 1989 -- valid -- Koford's Grass Mouse, Koford's Akodont
  Akodon lanosus (Thomas, 1897) -- invalid -- Woolly Grass Mouse
  Akodon latebricola (Anthony, 1924) -- invalid -- Ecuadorean Grass Mouse, Ecuadorean Akodont
  Akodon lindberghi Hershkovitz, 1990 -- valid -- Lindbergh's Grass Mouse, Lindbergh's Akodont
  Akodon longipilis (Waterhouse, 1837) -- invalid -- Long-haired Grass Mouse
  Akodon mansoensis De Santis and Justo, 1980 -- invalid -- Manso Grass Mouse
  Akodon markhami Pine, 1973 -- invalid -- Markham's Grass Mouse
  Akodon mimus (Thomas, 1901) -- valid -- Thespian Grass Mouse, Hocicudo-like Akodont
  Akodon molinae Contreras, 1968 -- valid -- Molina's Grass Mouse, Molina's Akodont
  Akodon mollis Thomas, 1894 -- valid -- Soft Grass Mouse, Soft-furred Akodont
  Akodon neocenus Thomas, 1919 -- valid -- Neuquen Grass Mouse, Neuquén Akodont
  Akodon nigrita (Lichtenstein, 1829) -- invalid -- Blackish Grass Mouse
  Akodon olivaceus (Waterhouse, 1837) -- invalid -- Olive Grass Mouse
  Akodon orophilus Osgood, 1913 -- valid -- El Dorado Grass Mouse, Utcubamba Akodont
  Akodon puer Thomas, 1902 -- invalid -- Altiplano Grass Mouse
  Akodon sanborni Osgood, 1943 -- invalid -- Sanborn's Grass Mouse
  Akodon sanctipaulensis Hershkovitz, 1990 -- valid -- Sao Paulo Grass Mouse, São Paulo Akodont
  Akodon serrensis Thomas, 1902 -- valid -- Serrado Mar Grass Mouse, Serra do Mar Akodont
  Akodon siberiae Myers and Patton, 1989 -- valid -- Cochabamba Grass Mouse, Cochabamba Akodont
  Akodon simulator Thomas, 1916 -- valid -- Gray-bellied Grass Mouse, White-throated Akodont
  Akodon spegazzinii Thomas, 1897 -- valid -- Spegazzini's Grass Mouse, Spegazzini's Akodont
  Akodon subfuscus Osgood, 1944 -- valid -- Puno Grass Mouse, Puno Akodont
  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 Grass Mouse, Cloud Forest Akodont
  Akodon urichi J. A. Allen and Chapman, 1897 -- invalid -- Northern Grass Mouse
  Akodon varius Thomas, 1902 -- valid -- Variable Grass Mouse, Variable Akodont
  Akodon xanthorhinus (Waterhouse, 1837) -- invalid -- Yellow-nosed Grass Mouse
  Alcelaphinae Brooke, 1876 -- valid
  Alcelaphus Blainville, 1816 -- valid
  Alcelaphus buselaphus (Pallas, 1766) -- valid -- Hartebeest, hartebeest
  Alces Gray, 1821 -- valid -- moose, Old World elk
  Alces alces (Linnaeus, 1758) -- valid -- moose, orignal, Eurasian Elk
  Alionycteris Kock, 1969 -- valid
  Alionycteris paucidentata Kock, 1969 -- valid -- Mindanao Pygmy Fruit Bat
  Allactaga F. Cuvier, 1837 -- valid -- Earth Hares, Four-toed Jerboas, Five-toed Jerboas
  Allactaga balikunica Hsia and Fang, 1964 -- valid -- Balikun Jerboa
  Allactaga bullata G. M. Allen, 1925 -- valid -- Gobi Jerboa
  Allactaga elater (Lichtenstein, 1828) -- valid -- Small Five-toed Jerboa
  Allactaga euphratica Thomas, 1881 -- valid -- Euphrates Jerboa, Montane Jerboa
  Allactaga firouzi Womochel, 1978 -- invalid -- Iranian Jerboa
  Allactaga hotsoni Thomas, 1920 -- valid -- Hotson's Jerboa, Hotson's Five-toed Jerboa
  Allactaga major (Kerr, 1792) -- valid -- Great Jerboa
  Allactaga severtzovi Vinogradov, 1925 -- valid -- Severtzov's Jerboa
  Allactaga sibirica (Forster, 1778) -- valid -- Mongolian Five-toed Jerboa, Siberian Jerboa
  Allactaga tetradactyla (Lichtenstein, 1823) -- valid -- Four-toed Jerboa
  Allactaga vinogradovi Argyropulo, 1941 -- valid -- Vinogradov's Jerboa
  Allactaginae Vinogradov, 1925 -- valid
  Allactodipus Kolesnikov, 1937 -- valid -- Turanian Jerboas
  Allactodipus bobrinskii Kolesnikov, 1937 -- valid -- Bobrinski's Jerboa
  Allenopithecus Lang, 1923 -- valid -- Allen's Swamp Monkey
  Allenopithecus nigroviridis (Pocock, 1907) -- valid -- Allen's Swamp Monkey
  Allocebus Petter-Rousseaux and Petter, 1967 -- valid -- Hairy-eared Dwarf Lemur
  Allocebus trichotis (Günther, 1875) -- valid -- Hairy-eared Dwarf Lemur
  Allocricetulus Argyropulo, 1933 -- valid -- Mongolian Hamsters
  Allocricetulus curtatus (G. M. Allen, 1925) -- valid -- Mongolian Hamster
  Allocricetulus eversmanni (Brandt, 1859) -- valid -- Eversmann's Hamster
  Alopex Kaup, 1829 -- invalid -- Arctic foxes
  Alopex lagopus (Linnaeus, 1758) -- invalid -- Arctic Fox, renard arctique
  Alouatta Lacépède, 1799 -- valid -- howler monkeys
  Alouatta belzebul (Linnaeus, 1766) -- valid -- Red-handed Howler
  Alouatta caraya (Humboldt, 1812) -- valid -- Black Howler, Paraguayan Howler
  Alouatta coibensis Thomas, 1902 -- invalid -- Coiba Howler Monkey
  Alouatta fusca (É. Geoffroy Saint-Hilaire, 1812) -- invalid
  Alouatta palliata (Gray, 1849) -- valid -- Saraguato de manto, Mantled Howler
  Alouatta pigra Lawrence, 1933 -- valid -- Mexican Black Howler Monkey, Saraguato yucateco, Central American Black Howler, Guatemalan Black Howler
  Alouatta sara Elliot, 1910 -- valid -- Bolivian Red Howler
  Alouatta seniculus (Linnaeus, 1766) -- valid -- Colombian Red Howler, Venezuelan Red Howler
  Alouattinae Trouessart, 1897 -- valid
  Alticola Blanford, 1881 -- valid -- Mountain Voles
  Alticola albicauda (True, 1894) -- invalid -- White-tailed Mountain Vole
  Alticola argentatus (Severtzov, 1879) -- valid -- Silver Mountain Vole
  Alticola barakshin Bannikov, 1947 -- valid -- Gobi Altai Mountain Vole
  Alticola lemminus (Miller, 1898) -- valid -- Lemming Vole, Lemming Mountain Vole
  Alticola macrotis (Radde, 1862) -- valid -- Large-eared Vole, Large-eared Mountain Vole
  Alticola montosa (True, 1894) -- valid -- Central Kashmir Vole, Kashmir Mountain Vole
  Alticola roylei (Gray, 1842) -- valid -- Royle's Mountain Vole, Royle's High Mountain Vole
  Alticola semicanus (G. M. Allen, 1924) -- valid -- Mongolian Silver Vole, Mongolian Mountain Vole
  Alticola stoliczkanus (Blanford, 1875) -- valid -- Stoliczka's Mountain Vole, Stoliczka's High Mountain Vole
  Alticola stracheyi (Thomas, 1880) -- invalid -- Strachey's mountain vole
  Alticola strelzowi (Kastschenko, 1899) -- valid -- Flat-headed Vole, Flat-skulled Vole, Strelzow's Mountain Vole
  Alticola tuvinicus Ognev, 1950 -- valid -- Tuva Silver Vole, Tuva Mountain Vole
  Amblonyx Rafinesque, 1832 -- invalid -- Oriental Small-clawed Otter
  Amblonyx cinereus (Illiger, 1815) -- invalid -- Oriental Small-clawed Otter
  Amblyrhiza Cope, 1868 -- valid
  Amblyrhiza inundata Cope, 1868 -- valid -- Blunt-toothed Giant Hutia
  Amblysomus Pomel, 1848 -- valid
  Amblysomus gunningi (Broom, 1908) -- invalid -- Gunning's golden mole
  Amblysomus hottentotus (A. Smith, 1829) -- valid -- Zulu Golden Mole
  Amblysomus iris Thomas and Schwann, 1905 -- invalid -- Zulu golden mole
  Amblysomus julianae Meester, 1972 -- invalid -- Juliana's golden mole
  Ametrida Gray, 1847 -- valid
  Ametrida centurio Gray, 1847 -- valid -- Little White-shouldered Bat
  Ammodillus Thomas, 1904 -- valid
  Ammodillus imbellis (de Winton, 1898) -- valid -- Ammodile
  Ammodorcas Thomas, 1891 -- valid
  Ammodorcas clarkei (Thomas, 1891) -- valid -- Clark's gazelle, dibatag, Dibatag
  Ammospermophilus Merriam, 1892 -- valid -- Antelope Squirrels
  Ammospermophilus harrisii (Audubon and Bachman, 1854) -- valid -- Harris' antelope squirrel, Ardilla-antilope de Sonora, Harris's Antelope Squirrel
  Ammospermophilus insularis Nelson and Goldman, 1909 -- valid -- Espiritu Santo Island Antelope Squirrel
  Ammospermophilus interpres (Merriam, 1890) -- valid -- Ardilla-antilope texana, Texas Antelope Squirrel
  Ammospermophilus leucurus (Merriam, 1889) -- valid -- Ardilla-antílope cola blanca, White-tailed Antelope Squirrel
  Ammospermophilus nelsoni (Merriam, 1893) -- valid -- San Joaquin antelope ground squirrel, San Joaquin antelope squirrel, Nelson's Antelope Squirrel, Nelson's antelope ground squirrel
  Ammotragus Blyth, 1840 -- valid -- Barbary sheep
  Ammotragus lervia (Pallas, 1777) -- valid -- aoudad, Barbary sheep, Barbary Sheep
  Amorphochilus Peters, 1877 -- valid -- Smoky Bat
  Amorphochilus schnablii Peters, 1877 -- valid -- Smoky Bat
  Anathana Lyon, 1913 -- valid
  Anathana ellioti (Waterhouse, 1850) -- valid -- Madras Tree Shrew, Madras Treeshrew
  Andalgalomys Williams and Mares, 1978 -- valid -- Chaco Mice
  Andalgalomys olrogi Williams and Mares, 1978 -- valid -- Olrog's chaco mouse, Olrog's Pericote
  Andalgalomys pearsoni (Myers, 1977) -- valid -- Pearson's Chaco mouse, Pearson's Pericote
  Andinomys Thomas, 1902 -- valid
  Andinomys edax Thomas, 1902 -- valid -- Andean Mouse
  Anisomys Thomas, 1904 -- valid
  Anisomys imitator Thomas, 1904 -- valid -- Uneven-toothed Rat
  Anomalurella Matschie, 1914 -- invalid
  Anomaluridae Gervais, 1849 -- valid -- Scaly-tailed Squirrels
  Anomalurinae Gervais, 1849 -- valid
  Anomalurodon Matschie, 1914 -- invalid
  Anomalurops Matschie, 1914 -- invalid
  Anomalurus Waterhouse, 1843 -- valid -- Scaly-tailed Flying Squirrels
  Anomalurus beecrofti Fraser, 1853 -- valid -- Beecroft's Scaly-tailed Squirrel
  Anomalurus derbianus (Gray, 1842) -- valid -- Lord Derby's Scaly-tailed Squirrel, Lord Derby's Flying Squirrel
  Anomalurus pelii (Schlegel and S. Müller, 1845) -- valid -- Pel's Flying Squirrel, Pel's Scaly-tailed Squirrel
  Anomalurus pusillus Thomas, 1887 -- valid -- Dwarf Scaly-tailed Squirrel, Little Flying Squirrel
  Anonymomys Musser, 1981 -- valid
  Anonymomys mindorensis Musser, 1981 -- valid -- Mindoro Forest Anonymomys
  Anotomys Thomas, 1906 -- valid
  Anotomys leander Thomas, 1906 -- valid -- Ecuador fish-eating rat, Ecuadoran Ichthyomyine
  Anoura Gray, 1838 -- valid -- tailless bats
  Anoura caudifera (E. Geoffroy, 1818) -- invalid -- Tailed Tailless Bat
  Anoura cultrata Handley, 1960 -- valid -- Handley's Tailless Bat
  Anoura geoffroyi Gray, 1838 -- valid -- Geoffroy's Tailless Bat
  Anoura latidens Handley, 1984 -- valid -- Broad-toothed Tailless Bat
  Anourosorex A. Milne-Edwards, 1872 -- valid
  Anourosorex squamipes A. Milne-Edwards, 1872 -- valid -- Chinese Mole Shrew, Mole Shrew
  Antechinus Macleay, 1841 -- valid -- pouched 'mice', antechinuses, broad-footed marsupial 'mice'
  Antechinus bellus (Thomas, 1904) -- valid -- Fawn Antechinus
  Antechinus flavipes (Waterhouse, 1838) -- valid -- Yellow-footed Antechinus
  Antechinus godmani (Thomas, 1923) -- valid -- Atherton Antechinus
  Antechinus leo Van Dyck, 1980 -- valid -- Cinnamon Antechinus
  Antechinus melanurus (Thomas, 1899) -- invalid
  Antechinus minimus (É. Geoffroy Saint-Hilaire, 1803) -- valid -- Swamp Antechinus
  Antechinus naso (Jentink, 1911) -- invalid
  Antechinus stuartii Macleay, 1841 -- valid -- Brown Antechinus
  Antechinus swainsonii (Waterhouse, 1840) -- valid -- Dusky Antechinus, Tasmanian Dusky Antechinus
  Antechinus wilhelmina Tate, 1947 -- invalid
  Anthops Thomas, 1888 -- valid
  Anthops ornatus Thomas, 1888 -- valid -- Flower-faced Bat, Solomons Leaf-nosed Bat
  Antidorcas Sundevall, 1847 -- valid
  Antidorcas marsupialis (Zimmermann, 1780) -- valid -- Springbok, springbok
  Antilocapra Ord, 1818 -- valid
  Antilocapra americana (Ord, 1815) -- valid -- pronghorn, Berrendo, Pronghorn
  Antilocapra americana americana (Ord, 1815) -- valid
  Antilocapra anteflexa Gray, 1855 -- invalid
  Antilocapridae Gray, 1866 -- valid -- pronghorns
  Antilope Pallas, 1766 -- valid -- blackbucks
  Antilope americana Ord, 1815 -- invalid
  Antilope cervicapra (Linnaeus, 1758) -- valid -- blackbuck, Blackbuck
  Antilopinae Gray, 1821 -- valid
  Antrozous H. Allen, 1862 -- valid -- pallid bats
  Antrozous dubiaquercus Van Gelder, 1959 -- invalid -- Van Gelder's bat
  Antrozous pallidus (LeConte, 1856) -- valid -- Murciélago-desértico norteño, Pallid Bat
  Aonyx Lesson, 1827 -- valid -- African Clawless Otter, African Small-clawed Otter
  Aonyx capensis (Schinz, 1821) -- valid -- African Small-clawed Otter, Swamp Otter, African Clawless Otter, Cape Clawless Otter
  Aonyx congicus (Lönnberg, 1910) -- valid -- Congo Clawless Otter
  Aonyx congicus congicus (Lönnberg, 1910) -- invalid
  Aonyx congicus microdon Pohle, 1920 -- invalid -- Cameroon Clawless Otter
  Aotinae Poche, 1908 -- invalid
  Aotus Illiger, 1811 -- valid -- night monkeys
  Aotus azarai (Humboldt, 1812) -- invalid
  Aotus brumbacki Hershkovitz, 1983 -- valid -- Brumback's Night Monkey
  Aotus hershkovitzi Ramirez-Cerquera, 1983 -- invalid -- Hershkovitz's Night Monkey
  Aotus infulatus (Kuhl, 1820) -- invalid
  Aotus lemurinus I. Geoffroy Saint-Hilaire, 1843 -- valid -- Gray-bellied Night Monkey, Lemurine Night Monkey
  Aotus miconax Thomas, 1927 -- valid -- Andean Night Monkey, Peruvian Night Monkey
  Aotus nancymaae Hershkovitz, 1983 -- invalid -- Ma's Night Monkey, Nancy Ma's Night Monkey
  Aotus nigriceps Dollman, 1909 -- valid -- Black-headed Night Monkey
  Aotus trivirgatus (Humboldt, 1811) -- valid -- Northern Night Monkey, Three-striped Night Monkey, Humboldt's Night Monkey
  Aotus vociferans (Spix, 1823) -- valid -- Noisy Night Monkey, Spix's Night Monkey
  Aplodontia Richardson, 1829 -- valid -- Mountain Beaver
  Aplodontia chryseola L. Kellogg, 1914 -- invalid
  Aplodontia humboldtiana Taylor, 1916 -- invalid
  Aplodontia major rainieri Merriam, 1899 -- invalid
  Aplodontia nigra Taylor, 1914 -- invalid
  Aplodontia olympica Merriam, 1899 -- invalid
  Aplodontia pacifica Merriam, 1899 -- invalid
  Aplodontia phaea Merriam, 1899 -- invalid
  Aplodontia rufa (Rafinesque, 1817) -- valid -- Mountain Beaver, Sewellel
  Aplodontia rufa grisea Taylor, 1916 -- invalid
  Aplodontidae Trouessart, 1897 -- invalid
  Aplodontiidae Brandt, 1855 -- valid -- Mountain Beavers
  Apodemus Kaup, 1829 -- valid -- Field Mice
  Apodemus agrarius (Pallas, 1771) -- valid -- Striped Field Mouse
  Apodemus alpicola Heinrich, 1952 -- valid -- Alpine Field Mouse
  Apodemus argenteus (Temminck, 1845) -- valid -- Small Japanese Field Mouse
  Apodemus arianus (Blanford, 1881) -- invalid
  Apodemus chevrieri (Milne-Edwards, 1868) -- valid -- Chevrier's Field Mouse
  Apodemus draco (Barrett-Hamilton, 1900) -- valid -- South China Field Mouse
  Apodemus flavicollis (Melchior, 1834) -- valid -- Yellow-necked Field Mouse
  Apodemus fulvipectus (Ognev, 1924) -- invalid
  Apodemus gurkha Thomas, 1924 -- valid -- Nepalese Field Mouse
  Apodemus hermonensis Filippucci, Simson and Nevo, 1989 -- invalid
  Apodemus hyrcanicus Vorontsov, Boyeskorov and Mezhzherin, 1992 -- valid -- Hyrcanian Field Mouse
  Apodemus latronum Thomas, 1911 -- valid -- Large-eared Field Mouse
  Apodemus mystacinus (Danford and Alston, 1877) -- valid -- Eastern Broad-toothed Field Mouse
  Apodemus peninsulae (Thomas, 1907) -- valid -- Korean Field Mouse
  Apodemus ponticus (Sviridenko, 1936) -- valid -- Caucasus Field Mouse
  Apodemus rusiges Miller, 1913 -- valid -- Kashmir Field Mouse
  Apodemus semotus Thomas, 1908 -- valid -- Taiwan Field Mouse
  Apodemus speciosus (Temminck, 1845) -- valid -- Large Japanese Field Mouse
  Apodemus sylvaticus (Linnaeus, 1758) -- valid -- Long-tailed Field Mouse, Common Field Mouse
  Apodemus uralensis (Pallas, 1811) -- valid -- Herb Field Mouse
  Apodemus wardi (Wroughton, 1908) -- invalid
  Apomys Mearns, 1905 -- valid -- Philippine Forest Mice
  Apomys abrae (Sanborn, 1952) -- valid -- Luzon Cordillera Apomys
  Apomys datae (Meyer, 1899) -- valid -- Northern Luzon Apomys
  Apomys hylocoetes Mearns, 1905 -- invalid
  Apomys insignis Mearns, 1905 -- valid -- Mindanao Montane Forest Apomys
  Apomys littoralis (Sanborn, 1952) -- valid -- Mindanao Lowland Apomys
  Apomys microdon Hollister, 1913 -- valid -- Small Luzon Apomys
  Apomys musculus Miller, 1911 -- valid -- Least Philippine Apomys
  Apomys sacobianus Johnson, 1962 -- valid -- Long-nosed Luzon Apomys
  Aproteles Menzies, 1977 -- valid
  Aproteles bulmerae Menzies, 1977 -- valid -- Bulmer's Fruit Bat
  Arborimus Taylor, 1915 -- valid -- Tree Voles
  Arborimus albipes (Merriam, 1901) -- valid -- White-footed Vole
  Arborimus longicaudus (True, 1890) -- valid -- Red Tree Vole, Reddish Tree Mouse
  Arborimus pomo Johnson and George, 1991 -- valid -- Sonoma Tree Vole
  Archboldomys Musser, 1982 -- valid
  Archboldomys luzonensis Musser, 1982 -- valid -- Isarog Shrew Mouse
  Arctictis Temminck, 1824 -- valid
  Arctictis binturong (Raffles, 1822) -- valid -- Binturong
  Arctocebus Gray, 1863 -- valid -- angwantibos
  Arctocebus aureus de Winton, 1902 -- valid -- Golden Angwantibo
  Arctocebus calabarensis (J. A. Smith, 1860) -- valid -- Calabar Angwantibo
  Arctocephalinae -- invalid
  Arctocephalus É. Geoffroy Saint-Hilaire and F. Cuvier, 1826 -- valid -- southern fur seals
  Arctocephalus australis (Zimmermann, 1783) -- valid -- South American Fur Seal
  Arctocephalus australis gracilis Nehring, 1887 -- invalid
  Arctocephalus forsteri (Lesson, 1828) -- valid -- Australasian Fur Seal, Antipodean fur seal, black fur seal, South Australian fur seal, New Zealand fur seal, Long-nosed fur seal
  Arctocephalus galapagoensis Heller, 1904 -- valid -- Galapagos Fur Seal, Galápagos fur seal
  Arctocephalus gazella (Peters, 1875) -- valid -- Antarctic Fur Seal, Kerguelen fur seal
  Arctocephalus monteriensis Gray, 1859 -- invalid
  Arctocephalus philippii (Peters, 1866) -- valid -- Juan Fernández Fur Seal
  Arctocephalus pusillus (Schreber, 1775) -- valid -- Brown Fur Seal, Cape fur seal, giant fur seal, Tasmanian fur seal, South African fur seal
  Arctocephalus pusillus doriferus Wood Jones, 1925 -- valid -- Australian fur seal
  Arctocephalus townsendi Merriam, 1897 -- invalid -- Guadalupe Fur Seal, Lobo-fino de Guadalupe
  Arctocephalus tropicalis (J. E. Gray, 1872) -- valid -- Subantarctic Fur Seal, Amsterdam fur seal
  Arctogalidia Merriam, 1897 -- valid
  Arctogalidia trivirgata (Gray, 1832) -- valid -- Small-toothed Palm Civet
  Arctonyx F. G. Cuvier, 1825 -- valid -- hog-badgers
  Arctonyx collaris F. G. Cuvier, 1825 -- valid -- Hog Badger, Greater Hog-badger, Greater Hog Badger
  Arctophoca townsendi (Merriam, 1897) -- invalid
  Ardops Miller, 1906 -- valid
  Ardops nichollsi (Thomas, 1891) -- valid -- Tree Bat
  Ariteus Gray, 1838 -- valid
  Ariteus flavescens (Gray, 1831) -- valid -- Jamaican Fig-eating Bat
  Aroaethrus Waterhouse, 1843 -- invalid
  Artibeus Leach, 1821 -- valid -- fruit-eating bats
  Artibeus amplus Handley, 1987 -- valid -- Large Fruit-eating Bat
  Artibeus anderseni Osgood, 1916 -- valid -- Andersen's Fruit-eating Bat
  Artibeus aztecus K. Andersen, 1906 -- valid -- Aztec Fruit-eating Bat
  Artibeus cinereus (Gervais, 1856) -- valid -- Gervais's Fruit-eating Bat
  Artibeus concolor Peters, 1865 -- valid -- Brown Fruit-eating Bat
  Artibeus fimbriatus Gray, 1838 -- valid -- Fringed Fruit-eating Bat
  Artibeus fraterculus Anthony, 1924 -- valid -- Fraternal Fruit-eating Bat
  Artibeus glaucus Thomas, 1893 -- valid -- Silver Fruit-eating Bat, Silvery Fruit-eating Bat
  Artibeus hartii Thomas, 1892 -- invalid -- Velvety Fruit-eating Bat, Hart's Fruit-eating Bat
  Artibeus hirsutus K. Andersen, 1906 -- valid -- Hairy Fruit-eating Bat
  Artibeus inopinatus Davis and Carter, 1964 -- valid -- Honduran Fruit-eating Bat
  Artibeus jamaicensis Leach, 1821 -- valid -- Murciélago-frutero de Jamaica, Jamaican Fruit-eating Bat
  Artibeus lituratus (Olfers, 1818) -- valid -- Great Fruit-eating Bat
  Artibeus obscurus (Schinz, 1821) -- valid -- Dark Fruit-eating Bat
  Artibeus phaeotis (Miller, 1902) -- valid -- Pygmy Fruit-eating Bat
  Artibeus planirostris (Spix, 1823) -- valid -- Flat-faced Fruit-eating Bat
  Artibeus toltecus (Saussure, 1860) -- valid -- Toltec Fruit-eating Bat
  Artiodactyla Owen, 1848 -- valid -- artiodactyls, porco do mato, veado, cloven-hoofed ungulates, even-toed ungulates
  Arvicanthis Lesson, 1842 -- valid -- African Grass Rats
  Arvicanthis abyssinicus (Rüppell, 1842) -- valid -- Ethiopian Arvicanthis
  Arvicanthis blicki Frick, 1914 -- valid -- Blick's Arvicanthis
  Arvicanthis nairobae J. A. Allen, 1909 -- valid -- East African Arvicanthis
  Arvicanthis neumanni (Matschie, 1894) -- valid -- Neumann's Arvicanthis
  Arvicanthis niloticus (Desmarest, 1822) -- invalid
  Arvicola Lacépède, 1799 -- valid -- Water Voles
  Arvicola austerus Le Conte, 1853 -- invalid
  Arvicola curtata Cope, 1868 -- invalid
  Arvicola richardsoni DeKay, 1842 -- invalid
  Arvicola sapidus Miller, 1908 -- valid -- Southwestern Water Vole
  Arvicola terrestris (Linnaeus, 1758) -- invalid -- European water vole
  Arvicola trimucronatus Richardson, 1825 -- invalid
  Arvicolinae Gray, 1821 -- valid -- arvicoline rodents
  Asellia Gray, 1838 -- valid
  Asellia patrizii De Beaux, 1931 -- valid -- Patrizi's Trident Leaf-nosed Bat
  Asellia tridens (É. Geoffroy Saint-Hilaire, 1813) -- valid -- trident leaf-nosed bat, Geoffroy's Trident Leaf-nosed Bat
  Aselliscus Tate, 1941 -- valid
  Aselliscus stoliczkanus (Dobson, 1871) -- valid -- Stoliczka's Trident Bat, Stoliczka's Asian Trident Bat
  Aselliscus tricuspidatus (Temminck, 1835) -- valid -- Temminck's Trident Bat, Temminck's Asian Trident Bat
  Atelerix Pomel, 1848 -- valid
  Atelerix albiventris (Wagner, 1841) -- valid -- Four-toed Hedgehog
  Atelerix algirus (Lereboullet, 1842) -- valid -- North African Hedgehog
  Atelerix frontalis (A. Smith, 1831) -- valid -- Southern African Hedgehog
  Atelerix sclateri Anderson, 1895 -- valid -- Somali Hedgehog
  Ateles É. Geoffroy Saint-Hilaire, 1806 -- valid -- spider monkeys
  Ateles belzebuth É. Geoffroy Saint-Hilaire, 1806 -- valid -- White-fronted Spider Monkey, White-bellied Spider Monkey
  Ateles chamek (Humboldt, 1812) -- valid -- Chamek Spider Monkey, Black Spider Monkey, Peruvian Spider Monkey
  Ateles fusciceps Gray, 1866 -- valid -- Brown-headed Spider Monkey, Black-headed Spider Monkey
  Ateles geoffroyi Kuhl, 1820 -- valid -- Mono-araña centroamericano, Central American Spider Monkey
  Ateles marginatus É. Geoffroy Saint-Hilaire, 1809 -- valid -- White-cheeked Spider Monkey, White-whiskered Spider Monkey
  Ateles paniscus (Linnaeus, 1758) -- valid -- Black Spider Monkey, Red-faced Black Spider Monkey, Red-faced Spider Monkey
  Atelinae Gray, 1825 -- valid
  Atelocynus Cabrera, 1940 -- valid
  Atelocynus microtis (Sclater, 1883) -- valid -- Short-eared Dog, Small-eared Dog, small eared zorro
  Atherurus F. Cuvier, 1829 -- valid
  Atherurus africanus Gray, 1842 -- valid -- African Brush-tailed Porcupine
  Atherurus macrourus (Linnaeus, 1758) -- valid -- Asiatic Brush-tailed Porcupine, Asian Brush-tailed Porcupine
  Atilax F. Cuvier, 1826 -- valid
  Atilax paludinosus (G. Cuvier, 1829) -- valid -- Marsh Mongoose
  Atlantoxerus Forsyth Major, 1893 -- valid
  Atlantoxerus getulus (Linnaeus, 1758) -- valid -- Barbary Ground Squirrel
  Auliscomys Osgood, 1915 -- valid -- Big-eared Mice
  Auliscomys boliviensis (Waterhouse, 1846) -- valid -- Bolivian big-eared mouse, Bolivian Pericote
  Auliscomys micropus (Waterhouse, 1837) -- invalid -- Southern Big-eared Mouse
  Auliscomys pictus (Thomas, 1884) -- valid -- Painted Big-eared Mouse, Colorful Pericote
  Auliscomys sublimis (Thomas, 1900) -- valid -- Andean Big-eared Mouse, Lofty Pericote
  Australophocaena Barnes, 1985 -- invalid
  Australophocaena dioptrica (Lahille, 1912) -- invalid -- Spectacled Porpoise
  Avahi Jourdan, 1834 -- valid -- woolly lemurs
  Avahi laniger (Gmelin, 1788) -- valid -- Eastern Woolly Lemur
  Axis C. H. Smith, 1827 -- valid -- axis deer
  Axis axis (Erxleben, 1777) -- valid -- axis deer, chital, Chital
  Axis calamianensis (Heude, 1888) -- valid -- Calamian Deer, Calamian deer
  Axis kuhlii (Müller, 1840) -- invalid -- Bawean deer
  Axis porcinus (Zimmermann, 1780) -- valid -- hog deer, Hog Deer
  Babyrousa Perry, 1811 -- valid
  Babyrousa babyrussa (Linnaeus, 1758) -- valid -- Buru Babirusa, babirusa
  Babyrousinae Thenius, 1970 -- invalid
  Baiomys True, 1894 -- valid -- Pygmy Mice, American Pygmy Mice
  Baiomys musculus (Merriam, 1892) -- valid -- Southern Pygmy Mouse
  Baiomys taylori (Thomas, 1887) -- valid -- Ratón-pigmeo norteño, Northern Pygmy Mouse
  Balaena Linnaeus, 1758 -- valid -- right whales
  Balaena glacialis Müller, 1776 -- invalid -- black right whale, black whale, right whale
  Balaena mysticetus Linnaeus, 1758 -- valid -- black right whale, bowhead whale, Bowhead, baleine boréale, Greenland whale
  Balaenidae Gray, 1821 -- valid -- bowhead whales, right whales
  Balaenoptera Lacépède, 1804 -- valid -- rorquals, finback whales, baleen whales
  Balaenoptera acutorostrata Lacépède, 1804 -- valid -- Common Minke Whale, Minke Whale, northern minke whale, Ballena menor, petit rorqual
  Balaenoptera borealis Lesson, 1828 -- valid -- Sei Whale, Ballena de Sei, rorqual boréal
  Balaenoptera edeni Anderson, 1879 -- valid -- Eden's whale, Ballena tropical, Bryde's whale
  Balaenoptera musculus (Linnaeus, 1758) -- valid -- Blue Whale, Ballena azul, rorqual bleu
  Balaenoptera physalus (Linnaeus, 1758) -- valid -- Fin Whale, finback whale, rorqual commun, Ballena de aleta
  Balaenoptera physalus physalus (Linnaeus, 1758) -- valid -- North Atlantic fin whale, Northern Fin Whale
  Balaenopteridae Gray, 1864 -- valid -- rorquals
  Balantiopteryx Peters, 1867 -- valid -- sac-winged bats
  Balantiopteryx infusca (Thomas, 1897) -- valid -- Ecuadorian Sac-winged Bat
  Balantiopteryx io Thomas, 1904 -- valid -- Least Sac-winged Bat, Thomas's Sac-winged Bat
  Balantiopteryx plicata Peters, 1867 -- valid -- Gray Sac-winged Bat
  Balionycteris Matschie, 1899 -- valid
  Balionycteris maculata (Thomas, 1893) -- valid -- Spotted-winged Fruit Bat, Bornean Spotted-winged Fruit Bat
  Bandicota Gray, 1873 -- valid -- Bandicoot Rats
  Bandicota bengalensis (Gray, 1835) -- valid -- Lesser Bandicoot Rat
  Bandicota indica (Bechstein, 1800) -- valid -- Greater Bandicoot Rat, Large Bandicoot Rat
  Bandicota savilei Thomas, 1916 -- valid -- Savile's Bandicoot Rat
  Barbastella Gray, 1821 -- valid
  Barbastella barbastellus (Schreber, 1774) -- valid -- Western Barbastelle, European Barbastelle
  Barbastella leucomelas (Cretzschmar, 1826) -- valid -- Eastern Barbastelle, Asian Barbastelle, Arabian Barbastelle
  Bassaricyon J. A. Allen, 1876 -- valid -- Olingos
  Bassaricyon alleni Thomas, 1880 -- valid -- Allen's Olingo, Eastern Lowland Olingo
  Bassaricyon beddardi Pocock, 1921 -- invalid -- Beddard's Olingo
  Bassaricyon gabbii J. A. Allen, 1876 -- valid -- Northern Olingo, Olingo
  Bassaricyon lasius Harris, 1932 -- invalid -- Harris's Olingo
  Bassaricyon pauli Enders, 1936 -- invalid -- Chiriqui Olingo
  Bassariscus Coues, 1887 -- valid -- ringtails
  Bassariscus astutus (Lichtenstein, 1830) -- valid -- Ringtail, Cacomixtle norteño
  Bassariscus sumichrasti (Saussure, 1860) -- valid -- Cacomistle
  Bathyergidae Waterhouse, 1841 -- valid -- African mole-rats
  Bathyergus Illiger, 1811 -- valid
  Bathyergus janetta Thomas and Schwann, 1904 -- valid -- Namaqua Dune Mole-rat, Small Dune Mole-rat, Namaquan Dune Blesmol
  Bathyergus suillus (Schreber, 1782) -- valid -- Cape Dune Mole-rat, Cape Dune Blesmol, Large Cape Dune Mole-rat
  Batomys Thomas, 1895 -- valid -- Hairy-tailed Rats
  Batomys dentatus Miller, 1911 -- valid -- Large-toothed Batomys
  Batomys granti Thomas, 1895 -- valid -- Luzon Batomys
  Batomys salomonseni (Sanborn, 1953) -- valid -- Mindanao Batomys
  Bdeogale Peters, 1850 -- valid
  Bdeogale crassicauda Peters, 1852 -- valid -- Bushy-tailed Mongoose
  Bdeogale jacksoni (Thomas, 1894) -- valid -- Jackson's Mongoose
  Bdeogale nigripes Pucheran, 1855 -- valid -- Black-footed Mongoose, Black-legged Mongoose
  Beamys Thomas, 1909 -- valid -- Long-Tailed Pouched Rats
  Beamys hindei Thomas, 1909 -- valid -- Long-tailed Pouched Rat, Hinde's Pouched Rat
  Beamys major Dollman, 1914 -- valid -- Greater Long-tailed Pouched Rat, Greater Pouched Rat
  Belomys Thomas, 1908 -- valid
  Belomys pearsonii (Gray, 1842) -- valid -- Hairy-footed Flying Squirrel
  Berardius Duvernoy, 1851 -- valid -- giant bottle-nosed whales, giant beaked whales
  Berardius arnuxii Duvernoy, 1851 -- valid -- Arnoux's Beaked Whale
  Berardius bairdii Stejneger, 1883 -- valid -- north Pacific bottle-nosed whale, Baird's Beaked Whale
  Berylmys Ellerman, 1947 -- valid -- White-toothed Rats
  Berylmys berdmorei (Blyth, 1851) -- valid -- Berdmore's Berylmys, Grey Rat
  Berylmys bowersi (Anderson, 1879) -- valid -- Bower's Rat, Bower's Berylmys
  Berylmys mackenziei (Thomas, 1916) -- valid -- Mackenzie's Berylmys
  Berylmys manipulus (Thomas, 1916) -- valid -- Manipur Berylmys
  Bettongia Gray, 1837 -- valid -- short-nosed 'rat'-kangaroos
  Bettongia gaimardi (Desmarest, 1822) -- valid -- Eastern Bettong
  Bettongia lesueur (Quoy and Gaimard, 1824) -- valid -- Boodie, Burrowing Bettong
  Bettongia penicillata Gray, 1837 -- valid -- Woylie, Brush-tailed Bettong
  Bibimys Massoia, 1979 -- valid -- Crimson-nosed Rats
  Bibimys chacoensis (Shamel, 1931) -- valid -- Chaco Crimson-nosed Rat, Chacoan Akodont
  Bibimys labiosus (Winge, 1887) -- valid -- Large-lipped Crimson-nosed Rat, Lagoa Santa Akodont
  Bibimys torresi Massoia, 1979 -- valid -- Torres's Crimson-nosed Rat, Torres' Akodont
  Bison C. H. Smith, 1827 -- invalid -- bison
  Bison bison (Linnaeus, 1758) -- invalid -- bison, Bisonte americano, American Bison
  Bison bison athabascae Rhoads, 1898 -- invalid -- wood bison
  Bison bonasus (Linnaeus, 1758) -- invalid -- wisent, European Bison
  Biswamoyopterus Saha, 1981 -- valid
  Biswamoyopterus biswasi Saha, 1981 -- valid -- Namdapha Flying Squirrel
  Blanfordimys Argyropulo, 1933 -- valid -- Afghan Voles
  Blanfordimys afghanus (Thomas, 1912) -- valid -- Afghan Vole
  Blanfordimys bucharicus (Vinogradov, 1930) -- invalid -- Bucharian vole
  Blarina Gray, 1838 -- valid -- American short-tailed shrews
  Blarina brevicauda (Say, 1823) -- invalid -- mole shrew, short-tailed shrew, grande musaraigne, Northern Short-tailed Shrew
  Blarina carolinensis (Bachman, 1837) -- valid -- Southern Short-tailed Shrew
  Blarina hylophaga Elliot, 1899 -- valid -- Elliot's Short-tailed Shrew
  Blarina telmalestes Merriam, 1895 -- invalid
  Blarinella Thomas, 1911 -- valid -- West Asian short-tailed shrews
  Blarinella quadraticauda (A. Milne-Edwards, 1872) -- valid -- Asiatic Short-tailed Shrew, Sichuan Short-tailed Shrew
  Blarinella wardi Thomas, 1915 -- valid -- Burmese Short-tailed Shrew, Ward's Short-tailed Shrew
  Blarinomys Thomas, 1896 -- valid
  Blarinomys breviceps (Winge, 1887) -- valid -- Brazilian Shrew Mouse, Blarinine Akodont
  Blastocerus Gray, 1850 -- invalid
  Blastocerus dichotomus (Illiger, 1815) -- valid -- Marsh Deer, marsh deer
  Bolomys Thomas, 1916 -- invalid
  Bolomys amoenus (Thomas, 1900) -- invalid -- Pleasant Bolo Mouse
  Bolomys lactens (Thomas, 1918) -- invalid -- Rufous-bellied Bolo Mouse
  Bolomys lasiurus (Lund, 1841) -- invalid -- Hairy-tailed Bolo Mouse
  Bolomys obscurus (Waterhouse, 1837) -- invalid -- Dark Bolo Mouse
  Bolomys punctulatus (Thomas, 1894) -- invalid -- Spotted Bolo Mouse
  Bolomys temchuki (Massoia, 1982) -- invalid -- Temchuk's Bolo Mouse
  Boneia Jentink, 1879 -- valid
  Boneia bidens Jentink, 1879 -- valid -- Manado Fruit Bat
  Boromys Miller, 1916 -- valid
  Boromys offella Miller, 1916 -- valid -- Oriente Cave Rat
  Boromys torrei Allen, 1917 -- valid -- Torre's Cave Rat
  Bos Linnaeus, 1758 -- valid -- true cattle, oxen
  Bos banteng Wagner, 1844 -- invalid -- banteng
  Bos bison Linnaeus, 1758 -- valid -- American Bison, Plains Bison, Wood Bison, Buffalo, Bisonte americano
  Bos bonasus Linnaeus, 1758 -- valid -- Wisent
  Bos frontalis A. B. Lambert, 1804 -- valid -- Gayal, domestic gaur, mithan
  Bos gaurus C. H. Smith, 1827 -- valid -- Gaur, seledang
  Bos grunniens Linnaeus, 1766 -- valid -- Domestic Yak, grunting ox
  Bos grunniens grunniens Linnaeus, 1766 -- invalid
  Bos indicus Linnaeus, 1758 -- invalid -- Brahma cattle, zebu cattle
  Bos javanicus d'Alton, 1823 -- valid -- tsaine, Banteng
  Bos primigenius Bojanus, 1827 -- valid -- Aurochs, urus, wild ox
  Bos sauveli Urbain, 1937 -- valid -- Kouprey
  Bos taurus Linnaeus, 1758 -- valid -- domesticated cattle, domestic cattle (feral)
  Boselaphus Blainville, 1816 -- valid -- nilgai
  Boselaphus tragocamelus (Pallas, 1766) -- valid -- Nilgai, blue bull, nilgai
  Bovidae Gray, 1821 -- valid -- antelopes, cattle, goats, sheep, bovids
  Bovinae Gray, 1821 -- valid
  Brachiones Thomas, 1925 -- valid
  Brachiones przewalskii (Büchner, 1889) -- valid -- Przewalski's Jird, Przewalski's Gerbil
  Brachylagus Miller, 1900 -- valid -- pygmy rabbits
  Brachylagus idahoensis (Merriam, 1891) -- valid -- Pygmy Rabbit
  Brachyphylla Gray, 1834 -- valid -- Antillean fruit-eating bats
  Brachyphylla cavernarum Gray, 1834 -- valid -- Antillean Fruit-eating Bat
  Brachyphylla nana Miller, 1902 -- valid -- Cuban Fruit-eating Bat
  Brachyphyllinae Gray, 1866 -- invalid
  Brachytarsomys Günther, 1875 -- valid
  Brachytarsomys albicauda Günther, 1875 -- valid -- White-tailed Rat, White-tailed Antsangy
  Brachyteles Spix, 1823 -- valid -- muriquis
  Brachyteles arachnoides (É. Geoffroy Saint-Hilaire, 1806) -- valid -- Southern Muriqui
  Brachyuromys Forsyth Major, 1896 -- valid -- Short-tailed Rats
  Brachyuromys betsileoensis (Bartlett, 1880) -- valid -- Betsileo Short-tailed Rat, Lesser Short-tailed Rat
  Brachyuromys ramirohitra Forsyth Major, 1896 -- valid -- Gregarious Short-tailed Rat, Greater Short-tailed Rat
  Brachyurus Spix, 1823 -- invalid
  Bradypodidae Gray, 1821 -- valid -- Three-toed Sloths
  Bradypus Linnaeus, 1758 -- valid
  Bradypus torquatus Illiger, 1811 -- valid -- Brazilian three-toed sloth, Maned Three-toed Sloth, Maned Sloth
  Bradypus tridactylus Linnaeus, 1758 -- valid -- Pale-throated Three-toed Sloth, Pale-throated Sloth
  Bradypus variegatus Schinz, 1825 -- valid -- Brown-throated Three-toed Sloth, Brown-throated Sloth
  Brotomys Miller, 1916 -- valid
  Brotomys contractus Miller, 1929 -- valid -- Haitian Edible Rat
  Brotomys voratus Miller, 1916 -- valid -- Hispaniolan Edible Rat
  Bubalus C. H. Smith, 1827 -- valid -- water buffalos
  Bubalus bubalis (Linnaeus, 1758) -- valid -- water buffalo, water buffalo (feral), Water Buffalo, domestic water buffalo
  Bubalus depressicornis (C. H. Smith, 1827) -- valid -- anoa, lowland anoa, Anoa
  Bubalus mephistopheles Hopwood, 1925 -- valid -- short-horned water buffalo
  Bubalus mindorensis Heude, 1888 -- valid -- tamaraw, Tamarau
  Bubalus quarlesi (Ouwens, 1910) -- valid -- Mountain Anoa, mountain anoa
  Budorcas Hodgson, 1850 -- valid
  Budorcas taxicolor Hodgson, 1850 -- valid -- takin, Takin
  Bullimus Mearns, 1905 -- valid -- Philippine Rats
  Bullimus bagobus Mearns, 1905 -- valid -- Mindanao Bullimus
  Bullimus luzonicus (Thomas, 1895) -- valid -- Luzon Bullimus
  Bunolagus Thomas, 1929 -- valid
  Bunolagus monticularis (Thomas, 1903) -- valid -- Riverine Rabbit
  Bunomys Thomas, 1910 -- valid -- Hill Rats
  Bunomys andrewsi (J. A. Allen, 1911) -- valid -- Andrew's Bunomys
  Bunomys chrysocomus (Hoffmann, 1887) -- valid -- Common Bunomys
  Bunomys coelestis (Thomas, 1896) -- valid -- Lampobatang Bunomys
  Bunomys fratrorum (Thomas, 1896) -- valid -- Northeastern Peninsula Bunomys
  Bunomys heinrichi (Tate and Archbold, 1935) -- invalid
  Bunomys penitus (Miller and Hollister, 1921) -- valid -- Montane Bunomys
  Bunomys prolatus Musser, 1991 -- valid -- Tambusisi Bunomys
  Burramyidae Broom, 1898 -- valid
  Burramys Broom, 1896 -- valid
  Burramys parvus Broom, 1896 -- valid -- Mountain Pygmy Possum
  Cabassous McMurtrie, 1831 -- valid -- Naked-tailed Armadillos
  Cabassous centralis (Miller, 1899) -- valid -- Northern Naked-tailed Armadillo
  Cabassous chacoensis Wetzel, 1980 -- valid -- Chacoan Naked-tailed Armadillo
  Cabassous tatouay (Desmarest, 1804) -- valid -- Greater Naked-tailed Armadillo
  Cabassous unicinctus (Linnaeus, 1758) -- valid -- Southern Naked-tailed Armadillo
  Cacajao Lesson, 1840 -- valid -- uakaris, uacaris
  Cacajao calvus (I. Geoffroy Saint-Hilaire, 1847) -- valid -- Bald Uacari, White Bald Uakari, White Uacari, White Bald-headed Uacari
  Cacajao melanocephalus (Humboldt, 1812) -- valid -- Black Uakari, Black-headed Uacari, Black-faced Uacari, Golden-brown Uacari
  Caenolestes Thomas, 1895 -- valid -- common shrew opossums
  Caenolestes caniventer Anthony, 1921 -- valid -- Gray-bellied Caenolestid, Gray-bellied Shrew-opossum
  Caenolestes convelatus Anthony, 1924 -- valid -- Northern Caenolestid, Blackish Shrew-opossum
  Caenolestes fuliginosus (Tomes, 1863) -- valid -- Dusky Caenolestid, Dusky Shrew-opossum
  Caenolestidae Trouessart, 1898 -- valid -- shrew opossums, shrew-opossums
  Calcochloris Mivart, 1867 -- valid
  Calcochloris obtusirostris (Peters, 1851) -- valid -- Yellow Golden Mole
  Callicebinae Pocock, 1925 -- valid -- titi monkeys
  Callicebus Thomas, 1903 -- valid
  Callicebus brunneus (Wagner, 1842) -- invalid -- Brown Titi
  Callicebus caligatus (Wagner, 1842) -- invalid -- Booted Titi Monkey, Chestnut-bellied Titi
  Callicebus cinerascens (Spix, 1823) -- invalid -- Ashy Titi, Ashy Black Titi
  Callicebus cupreus (Spix, 1823) -- invalid -- Red Titi, Coppery Titi
  Callicebus donacophilus (d'Orbigny, 1836) -- invalid -- Bolivian Titi, White-eared Titi
  Callicebus dubius Hershkovitz, 1988 -- invalid -- Dubius Titi, Hershkovitz's Titi, Doubtful Titi
  Callicebus hoffmannsi Thomas, 1908 -- invalid -- Hoffmanns' titi, Hoffmanns's Titi
  Callicebus modestus Lönnberg, 1939 -- invalid -- Modest Titi, Rio Beni Titi
  Callicebus moloch (Hoffmannsegg, 1807) -- invalid -- Dusky Titi, Red-bellied Titi
  Callicebus oenanthe Thomas, 1924 -- invalid -- Andean Titi, Rio Mayo Titi
  Callicebus olallae Lönnberg, 1939 -- invalid -- Olalla's Titi, Olalla Brother's Titi, Ollala Brothers' Titi
  Callicebus personatus (É. Geoffroy Saint-Hilaire, 1812) -- valid -- Masked Titi, Atlantic Titi
  Callicebus torquatus (Hoffmannsegg, 1807) -- invalid -- Yellow-handed Titi, Collared Titi, White-collared Titi
  Callimico Miranda Ribeiro, 1912 -- valid -- Goeldi's Marmoset
  Callimico goeldii (Thomas, 1904) -- valid -- Goeldi's Marmoset, Goeldi's Monkey
  Callithrix Erxleben, 1777 -- valid -- Atlantic forest marmosets
  Callithrix argentata (Linnaeus, 1771) -- invalid
  Callithrix aurita (É. Geoffroy Saint-Hilaire, 1812) -- valid -- White-eared Marmoset, Buffy-tufted-ear Marmoset, Buffy-tufted Marmoset
  Callithrix flaviceps (Thomas, 1903) -- valid -- Buffy-headed Marmoset
  Callithrix geoffroyi (Humboldt, 1812) -- valid -- Geoffroy's Marmoset, Geoffroy's Tufted-ear Marmoset, White-headed Marmoset
  Callithrix humeralifera (É. Geoffroy Saint-Hilaire, 1812) -- invalid
  Callithrix jacchus (Linnaeus, 1758) -- valid -- White-tufted-ear Marmoset, Common Marmoset
  Callithrix kuhlii Coimbra-Filho, 1985 -- valid -- Wied's Black-tufted-ear Marmoset, Wied's Marmoset
  Callithrix penicillata (É. Geoffroy Saint-Hilaire, 1812) -- valid -- Black-pencilled Marmoset, Black-tufted Marmoset, Black-tufted-ear Marmoset
  Callithrix pygmaea (Spix, 1823) -- invalid
  Callitrichidae Gray, 1821 -- valid -- marmosets, tamarins
  Callorhinus J. E. Gray, 1859 -- valid -- northern fur seals
  Callorhinus ursinus (Linnaeus, 1758) -- valid -- Northern Fur Seal
  Callosciurus Gray, 1867 -- valid -- Oriental Tree Squirrels
  Callosciurus adamsi (Kloss, 1921) -- valid -- Ear-spot Squirrel
  Callosciurus albescens (Bonhote, 1901) -- invalid -- Kloss's squirrel, Kloss squirrel
  Callosciurus baluensis (Bonhote, 1901) -- valid -- Kinabalu Squirrel
  Callosciurus caniceps (Gray, 1842) -- valid -- Gray-bellied Squirrel
  Callosciurus erythraeus (Pallas, 1779) -- valid -- Pallas's Squirrel
  Callosciurus finlaysonii (Horsfield, 1823) -- valid -- Finlayson's Squirrel
  Callosciurus inornatus (Gray, 1867) -- valid -- Inornate Squirrel
  Callosciurus melanogaster (Thomas, 1895) -- valid -- Mentawai Squirrel
  Callosciurus nigrovittatus (Horsfield, 1823) -- valid -- Black-striped Squirrel
  Callosciurus notatus (Boddaert, 1785) -- valid -- Plantain Squirrel
  Callosciurus orestes (Thomas, 1895) -- valid -- Borneo Black-banded Squirrel
  Callosciurus phayrei (Blyth, 1856) -- valid -- Phayre's Squirrel
  Callosciurus prevostii (Desmarest, 1822) -- valid -- Prevost's Squirrel
  Callosciurus pygerythrus (I. Geoffroy Saint-Hilaire, 1833) -- valid -- Irrawaddy Squirrel
  Callosciurus quinquestriatus (Anderson, 1871) -- valid -- Anderson's Squirrel
  Calomys Waterhouse, 1837 -- valid -- Vesper Mice
  Calomys boliviae (Thomas, 1901) -- valid -- Bolivian Vesper Mouse, Bolivian Laucha
  Calomys callidus (Thomas, 1916) -- valid -- Crafty Vesper Mouse, Reclusive Laucha
  Calomys callosus (Rengger, 1830) -- valid -- Large Vesper Mouse, Big Laucha
  Calomys hummelincki (Husson, 1960) -- valid -- Hummelinck's Vesper Mouse, Hummelinck's Laucha
  Calomys laucha (Fischer, 1814) -- valid -- Small Vesper Mouse, Little Laucha
  Calomys lepidus (Thomas, 1884) -- valid -- Andean Vesper Mouse, Graceful Laucha
  Calomys musculinus (Thomas, 1913) -- valid -- Drylands Vesper Mouse, Drylands Laucha
  Calomys sorellus (Thomas, 1900) -- valid -- Peruvian Vesper Mouse, Peruvian Laucha
  Calomys tener (Winge, 1888) -- valid -- Delicate Vesper Mouse, Delicate Laucha
  Calomyscinae Vorontsov and Potapova, 1979 -- invalid
  Calomyscus Thomas, 1905 -- valid -- Mouse-like Hamsters
  Calomyscus bailwardi Thomas, 1905 -- valid -- Zagros Mountains Calomyscus, Mouse-like Hamster
  Calomyscus baluchi Thomas, 1920 -- valid -- Baluchi mouse-like hamster, Pakistan Calomyscus
  Calomyscus hotsoni Thomas, 1920 -- valid -- Hotson's Mouse-like Hamster, Hotson's Calomyscus
  Calomyscus mystax Kashkarov, 1925 -- valid -- Afghan Mouse-like Hamster, Great Balkhan Calomyscus
  Calomyscus tsolovi Peshev, 1991 -- valid -- Tsolov's mouse-like hamster, Syrian Calomyscus
  Calomyscus urartensis Vorontsov and Kartavseva, 1979 -- valid -- Urartsk mouse-like hamster, Urar Calomyscus
  Caloprymnus Thomas, 1888 -- valid
  Caloprymnus campestris (Gould, 1843) -- valid -- Desert Rat-kangaroo, Desert Rat Kangaroo
  Caluromyinae Kirsch, 1977 -- valid -- woolly opossums
  Caluromys J. A. Allen, 1900 -- valid -- woolly opossum
  Caluromys derbianus (Waterhouse, 1841) -- valid -- Derby's Woolly Opossum
  Caluromys lanatus (Olfers, 1818) -- valid -- Brown-eared Woolly Opossum
  Caluromys philander (Linnaeus, 1758) -- valid -- Bare-tailed Woolly Opossum
  Caluromysiops Sanborn, 1951 -- valid -- black-shouldered opossums
  Caluromysiops irrupta Sanborn, 1951 -- valid -- Black-shouldered Opossum
  Camelidae Gray, 1821 -- valid -- camels
  Camelus Linnaeus, 1758 -- valid -- camels
  Camelus bactrianus Linnaeus, 1758 -- valid -- Bactrian camel, Bactrian Camel
  Camelus dromedarius Linnaeus, 1758 -- valid -- One-humped Camel, dromedary
  Canariomys Crusafont-Pairo and F. Petter, 1964 -- valid
  Canariomys tamarani Lopez-Martinez and Lopez-Jurado, 1987 -- valid
  Canidae G. Fischer von Waldheim, 1817 -- valid -- coyotes, dogs, foxes, jackals, wolves
  Caniformia Kretzoi, 1938 -- valid -- dog-like carnivores
  Canis Linnaeus, 1758 -- valid -- dogs, foxes, jackals
  Canis adustus Sundevall, 1847 -- invalid -- Side-striped Jackal
  Canis aureus Linnaeus, 1758 -- valid -- Golden Jackal, Eurasian Golden Jackal
  Canis dingo Meyer, 1793 -- invalid -- Dingo
  Canis familiaris Linnaeus, 1758 -- valid -- domestic dog, domestic dog (feral)
  Canis latrans Say, 1823 -- valid -- Coyote, coyote, Coyote
  Canis lupus Linnaeus, 1758 -- valid -- Wolf, Gray Wolf, Lobo gris, loup
  Canis lupus lupus Linnaeus, 1758 -- valid
  Canis lupus lycaon Schreber, 1775 -- invalid
  Canis mesomelas Schreber, 1775 -- invalid -- Black-backed Jackal
  Canis microtis Sclater, 1883 -- invalid
  Canis rufus Audubon and Bachman, 1851 -- valid -- Red Wolf
  Canis simensis Rüppell, 1840 -- valid -- Simian jackal, Simien fox, Ethiopian Wolf
  Cannomys Thomas, 1915 -- valid
  Cannomys badius (Hodgson, 1841) -- valid -- Lesser Bamboo Rat
  Cansumys G. M. Allen, 1928 -- valid
  Cansumys canus G. M. Allen, 1928 -- valid -- Gansu Hamster
  Caperea Gray, 1864 -- valid -- pygmy right whales
  Caperea marginata (Gray, 1846) -- valid -- Pygmy Right Whale
  Capra Linnaeus, 1758 -- valid -- goats
  Capra caucasica Güldenstaedt and Pallas, 1783 -- valid -- Tur, West Caucasian tur
  Capra cylindricornis (Blyth, 1841) -- invalid -- East Caucasian tur
  Capra falconeri (Wagner, 1839) -- valid -- markhor, Markhor
  Capra hircus Linnaeus, 1758 -- valid -- domestic goat, goat (feral), Goat
  Capra ibex Linnaeus, 1758 -- valid -- Alpine Ibex, ibex
  Capra nubiana F. Cuvier, 1825 -- valid -- nubian ibex, Nubian Ibex
  Capra pyrenaica Schinz, 1838 -- valid -- Spanish Ibex, Spanish ibex
  Capra sibirica (Pallas, 1776) -- valid -- Siberian ibex, Siberian Ibex
  Capra walie Rüppell, 1835 -- valid -- Walia, Walia ibex
  Capreolinae Brookes, 1828 -- valid
  Capreolus Gray, 1821 -- valid -- roe deer
  Capreolus capreolus (Linnaeus, 1758) -- valid -- western roe deer, European Roe
  Capreolus pygargus (Pallas, 1771) -- valid -- Siberian Roe, eastern roe deer
  Capricornis sumatraensis sumatraensis (Bechstein, 1799) -- invalid
  Caprinae Gray, 1821 -- valid
  Caprolagus Blyth, 1845 -- valid
  Caprolagus hispidus (Pearson, 1839) -- valid -- Assam Rabbit, Hispid Hare, Bristly Rabbit
  Capromyidae Smith, 1842 -- invalid -- capromyid rodents
  Capromyinae Smith, 1842 -- valid
  Capromys Desmarest, 1822 -- valid
  Capromys pilorides (Say, 1822) -- valid -- Desmarest's Hutia
  Caracal Gray, 1843 -- valid
  Caracal caracal (Schreber, 1776) -- valid -- Caracal, Caracal, Caracal, lince africano
  Cardiocraniinae Vinogradov, 1925 -- valid
  Cardiocranius Satunin, 1903 -- valid
  Cardiocranius paradoxus Satunin, 1903 -- valid -- Five-toed Pygmy Jerboa, Five-toed Dwarf Jerboa
  Cardioderma Peters, 1873 -- valid
  Cardioderma cor (Peters, 1872) -- valid -- Heart-nosed Bat, Heart-nosed False-vampire
  Carnivora Bowdich, 1821 -- valid -- cachorro do mato, carnívoro, gato do mato, lontra, carnivores, carnivores
  Carollia Gray, 1838 -- valid -- short-tailed bats
  Carollia brevicauda (Schinz, 1821) -- invalid -- Silky Short-tailed Bat
  Carollia castanea H. Allen, 1890 -- valid -- Chestnut Short-tailed Bat
  Carollia perspicillata (Linnaeus, 1758) -- valid -- Seba's Short-tailed Bat
  Carollia subrufa (Hahn, 1905) -- valid -- Gray Short-tailed Bat
  Carolliinae Miller, 1924 -- valid -- short-tailed bats
  Carpomys Thomas, 1895 -- valid -- Luzon Tree Rats
  Carpomys melanurus Thomas, 1895 -- valid -- Large Luzon Carpomys
  Carpomys phaeurus Thomas, 1895 -- valid -- Small Luzon Carpomys
  Carterodon Waterhouse, 1848 -- valid
  Carterodon sulcidens (Lund, 1841) -- valid -- Owl's Spiny Rat, Groove-toothed Spiny-rat
  Casinycteris Thomas, 1910 -- valid
  Casinycteris argynnis Thomas, 1910 -- valid -- Golden Short-palated Fruit Bat, Short-palated Fruit Bat
  Castor Linnaeus, 1758 -- valid -- beavers
  Castor canadensis Kuhl, 1820 -- valid -- castor, American Beaver, Castor Americano
  Castor fiber Linnaeus, 1758 -- valid -- Eurasian Beaver
  Castor zibethicus Linnaeus, 1766 -- invalid
  Castoridae Hemprich, 1820 -- valid -- Beavers
  Catagonus Ameghino, 1904 -- valid
  Catagonus wagneri (Rusconi, 1930) -- valid -- Chacoan Peccary, Chacoan peccary
  Catopuma Severtzov, 1858 -- valid
  Catopuma badia (Gray, 1874) -- valid -- Bay Cat, Borneo bay cat, Chat bai, gato rojo de Borneo
  Catopuma temminckii (Vigors and Horsfield, 1827) -- valid -- Asiatic golden cat, Temminck's golden cat, Asian Golden Cat, Chat de Temminck, chat doré d'Asie, Gato dorado asiático
  Cavia Pallas, 1766 -- valid
  Cavia aperea Erxleben, 1777 -- valid -- Brazilian Guinea Pig
  Cavia fulgida Wagler, 1831 -- valid -- Shiny Guinea Pig
  Cavia magna Ximinez, 1980 -- valid -- Greater Guinea Pig
  Cavia porcellus (Linnaeus, 1758) -- valid -- Domesticated Guinea Pig, Domestic Guinea Pig
  Cavia tschudii Fitzinger, 1857 -- valid -- Montane Guinea Pig
  Caviidae Fischer de Waldheim, 1817 -- valid -- cavies, capybaras, rock cavies, maras
  Caviinae Fischer de Waldheim, 1817 -- valid -- cavies
  Cebidae Bonaparte, 1831 -- valid -- New World monkeys
  Cebinae Bonaparte, 1831 -- valid -- capuchin monkeys
  Cebus Erxleben, 1777 -- valid -- gracile capuchins, untufted capuchins
  Cebus albifrons (Humboldt, 1812) -- valid -- Humboldt's White-fronted Capuchin, White-fronted Capuchin
  Cebus apella (Linnaeus, 1758) -- invalid -- Tufted Capuchin
  Cebus capucinus (Linnaeus, 1758) -- valid -- White-headed Capuchin, Colombian White-faced Capuchin
  Cebus olivaceus Schomburgk, 1848 -- valid -- Weeping Capuchin, Guianan Weeper Capuchin
  Celaenomys Thomas, 1898 -- invalid
  Celaenomys silaceus (Thomas, 1895) -- invalid
  Centronycteris Gray, 1838 -- valid -- shaggy bats
  Centronycteris maximiliani (J. Fischer, 1829) -- valid -- Common Shaggy Bat, Shaggy Bat
  Centurio Gray, 1842 -- valid
  Centurio senex Gray, 1842 -- valid -- Wrinkle-faced Bat
  Cephalophinae Blyth, 1863 -- valid
  Cephalophus C. H. Smith, 1827 -- valid -- forest duikers
  Cephalophus adersi Thomas, 1918 -- valid -- Aders's duiker, Aders' Duiker
  Cephalophus callipygus Peters, 1876 -- valid -- Peters' Duiker, Peters's duiker
  Cephalophus dorsalis Gray, 1846 -- valid -- bay duiker, Bay Duiker
  Cephalophus harveyi (Thomas, 1893) -- invalid -- Harvey's duiker
  Cephalophus jentinki Thomas, 1892 -- valid -- Jentink's duiker, Jentink's Duiker
  Cephalophus leucogaster Gray, 1873 -- valid -- White-bellied Duiker, white-bellied duiker
  Cephalophus maxwellii (C. H. Smith, 1827) -- invalid -- Maxwell's duiker
  Cephalophus monticola (Thunberg, 1789) -- invalid -- blue duiker
  Cephalophus natalensis A. Smith, 1834 -- valid -- Natal duiker, Red Duiker
  Cephalophus niger Gray, 1846 -- valid -- black duiker, Black Duiker
  Cephalophus nigrifrons Gray, 1871 -- valid -- Black-fronted Duiker, black-fronted duiker
  Cephalophus ogilbyi (Waterhouse, 1838) -- valid -- Ogilby's duiker, Ogilby's Duiker
  Cephalophus rubidus Thomas, 1901 -- invalid -- Ruwenzori duiker
  Cephalophus rufilatus Gray, 1846 -- valid -- red-flanked duiker, Red-flanked Duiker
  Cephalophus silvicultor (Afzelius, 1815) -- valid -- ligit-backed duiker, yellow-backed duiker, Yellow-backed Duiker
  Cephalophus spadix True, 1890 -- valid -- Abbott's Duiker, Abbott's duiker
  Cephalophus weynsi Thomas, 1901 -- valid -- Weyns's duiker, Weyns's Duiker
  Cephalophus zebra Gray, 1838 -- valid -- striped-backed duiker, zebra duiker, Zebra Duiker
  Cephalorhynchus Gray, 1846 -- valid -- piebald dolphins
  Cephalorhynchus commersonii (Lacépède, 1804) -- valid -- piebald dolphin, Commerson's Dolphin
  Cephalorhynchus eutropia (Gray, 1846) -- valid -- Black Dolphin, Chilean Dolphin
  Cephalorhynchus heavisidii (Gray, 1828) -- valid -- Haviside's Dolphin, Heaviside's Dolphin
  Cephalorhynchus hectori (P.-J. van Bénéden, 1881) -- valid -- Hector's Dolphin
  Ceratotherium Gray, 1868 -- valid
  Ceratotherium simum (Burchell, 1817) -- valid -- Square-lipped Rhinoceros, Southern White Rhinoceros, White Rhinoceros
  Cercartetus Gloger, 1841 -- valid -- pygmy possums
  Cercartetus caudatus (A. Milne-Edwards, 1877) -- valid -- Long-tailed Pygmy Possum
  Cercartetus concinnus (Gould, 1845) -- valid -- Southwestern Pygmy Possum, Western Pygmy Possum
  Cercartetus lepidus (Thomas, 1888) -- valid -- Tasmanian Pygmy Possum, Little Pygmy Possum
  Cercartetus nanus (Desmarest, 1818) -- valid -- Eastern Pygmy Possum
  Cercocebus É. Geoffroy Saint-Hilaire, 1812 -- valid -- capped mangabeys
  Cercocebus agilis A. Milne-Edwards, 1886 -- valid -- Agile Mangabey
  Cercocebus galeritus Peters, 1879 -- valid -- Tana River Mangabey
  Cercocebus torquatus (Kerr in Linnaeus, 1792) -- valid -- Red-capped Mangabey, Collared Mangabey
  Cercolophocebus Matschie, 1914 -- invalid
  Cercopithecidae Gray, 1821 -- valid -- Old World monkeys
  Cercopithecinae Gray, 1821 -- valid -- cercopithecines
  Cercopithecus Linnaeus, 1758 -- valid -- arborial guenons
  Cercopithecus ascanius (Audebert, 1799) -- valid -- Black-cheeked White-nosed Monkey, Red-tailed Monkey
  Cercopithecus campbelli Waterhouse, 1838 -- valid -- Campbell's Monkey, Campbell's Mona Monkey
  Cercopithecus cephus (Linnaeus, 1758) -- valid -- Moustached Monkey, Moustached Guenon, Mustached Monkey
  Cercopithecus diana (Linnaeus, 1758) -- valid -- Diana Monkey
  Cercopithecus dryas Schwarz, 1932 -- invalid -- Dryas Monkey, Dryad Monkey
  Cercopithecus erythrogaster Gray, 1866 -- valid -- Red-bellied Monkey, White-throated Guenon
  Cercopithecus erythrotis Waterhouse, 1838 -- valid -- Red-eared Guenon, Red-eared Monkey
  Cercopithecus hamlyni Pocock, 1907 -- valid -- Owl-faced Monkey, Hamlyn's Monkey
  Cercopithecus lhoesti Sclater, 1899 -- invalid
  Cercopithecus mitis Wolf, 1822 -- valid -- Blue Monkey
  Cercopithecus mona (Schreber, 1775) -- valid -- Mona Monkey
  Cercopithecus neglectus Schlegel, 1876 -- valid -- De Brazza's Monkey
  Cercopithecus nictitans (Linnaeus, 1766) -- valid -- White-nosed Guenon, Putty-nosed Monkey, Greater spot-nosed Monkey
  Cercopithecus petaurista (Schreber, 1774) -- valid -- lesser white-nosed monkey, Lesser Spot-nosed Monkey, Spot-nosed Monkey
  Cercopithecus pogonias Bennett, 1833 -- valid -- Crowned Guenon, Crowned Monkey, Crested Mona Monkey
  Cercopithecus preussi Matschie, 1898 -- invalid
  Cercopithecus sclateri Pocock, 1904 -- valid -- Sclater's Monkey, Sclater's Guenon
  Cercopithecus solatus Harrison, 1988 -- invalid
  Cercopithecus wolfi Meyer, 1891 -- valid -- Wolf's Mona Monkey, Wolf's Monkey
  Cerdocyon C. E. H. Smith, 1839 -- valid
  Cerdocyon thous (Linnaeus, 1766) -- valid -- Crab-eating Fox
  Cervidae Goldfuss, 1820 -- valid -- cervids, caribou, deer, moose, wapiti
  Cervinae Goldfuss, 1820 -- valid
  Cervus Linnaeus, 1758 -- valid -- red deer, deer, wapiti
  Cervus albirostris Przewalski, 1883 -- invalid -- Thorold's deer
  Cervus alfredi Sclater, 1870 -- invalid -- Visayan deer, Visayan spotted deer
  Cervus duvaucelii G. Cuvier, 1823 -- invalid -- barasingha, swamp deer
  Cervus elaphus Linnaeus, 1758 -- valid -- elk, wapiti, Ciervo común, wapiti or elk, wapiti, Red Deer (see comments)
  Cervus elaphus barbarus Bennett, 1833 -- valid -- Barbary deer, Barbary stag
  Cervus elaphus elaphus Linnaeus, 1758 -- valid -- wapiti
  Cervus elaphus hanglu Wagner, 1844 -- valid -- Kashmir stag
  Cervus eldii M'Clelland, 1842 -- invalid -- Eld's brow-antlered deer, Eld's deer
  Cervus mariannus Desmarest, 1822 -- invalid -- Philippine brown deer, Philippine sambar, Philippine deer
  Cervus nippon Temminck, 1838 -- valid -- Sika deer, Sika
  Cervus schomburgki Blyth, 1863 -- invalid -- Schomburgk's deer
  Cervus timorensis Blainville, 1822 -- invalid -- Timor deer
  Cervus unicolor Kerr, 1792 -- invalid -- sambar
  Cetacea Brisson, 1762 -- valid -- baleines, cétacés, dauphins, mammfères marins, marsouins, baleia, cetáceo, golfinho, cetaceans, whales, dolphins, marine mammals, porpoises
  Chaerephon Dobson, 1874 -- valid
  Chaerephon aloysiisabaudiae (Festa, 1907) -- valid -- Duke of Abruzzi's Free-tailed Bat
  Chaerephon ansorgei (Thomas, 1913) -- valid -- Ansorge's Free-tailed Bat
  Chaerephon bemmeleni (Jentink, 1879) -- valid -- Gland-tailed Free-tailed Bat
  Chaerephon bivittata (Heuglin, 1861) -- invalid -- Spotted Free-tailed Bat
  Chaerephon chapini J. A. Allen, 1917 -- valid -- Chapin's Free-tailed Bat, Pale Free-tailed Bat, Long-crested Free-tailed Bat
  Chaerephon gallagheri (Harrison, 1975) -- valid -- Gallagher's Free-tailed Bat
  Chaerephon jobensis (Miller, 1902) -- valid -- Northern Mastiff Bat, Greater Northern Free-tailed Bat
  Chaerephon johorensis (Dobson, 1873) -- valid -- Northern Free-tailed Bat, Lesser Northern Free-tailed Bat
  Chaerephon major (Trouessart, 1897) -- valid -- Lappet-eared Free-tailed Bat
  Chaerephon nigeriae Thomas, 1913 -- valid -- Nigerian Free-tailed Bat
  Chaerephon plicata (Buchannan, 1800) -- invalid -- Wrinkle-lipped Free-tailed Bat
  Chaerephon pumila (Cretzschmar, 1826) -- invalid -- Little Free-tailed Bat
  Chaerephon russata J. A. Allen, 1917 -- invalid -- Russet Free-tailed Bat
  Chaeropitheus Gervais, 1839 -- invalid
  Chaeropus Ogilby, 1838 -- valid
  Chaeropus ecaudatus Ogilby, 1838 -- valid -- Pig-footed Bandicoot, Southern Pig-footed Bandicoot
  Chaetodipus Merriam, 1889 -- valid -- hispid pocket mice, Coarse-haired Pocket Mice
  Chaetodipus arenarius (Merriam, 1894) -- valid -- Little Desert Pocket Mouse, Sand Pocket Mouse
  Chaetodipus artus (Osgood, 1900) -- valid -- Narrow-skulled Pocket Mouse
  Chaetodipus baileyi (Merriam, 1894) -- valid -- Bailey's Pocket Mouse, Ratón-de abazones Sonorense
  Chaetodipus californicus (Merriam, 1889) -- valid -- Ratón-de abazones de California, California Pocket Mouse
  Chaetodipus eremicus (Mearns, 1898) -- valid -- Chihuahuan Pocket Mouse, Chihuahuan Desert Pocket Mouse, Eastern Desert Pocket-mouse
  Chaetodipus fallax (Merriam, 1889) -- valid -- Ratón-de abazones de San Diego, San Diego Pocket Mouse
  Chaetodipus formosus (Merriam, 1889) -- valid -- Ratón-de abazones cola larga, Long-tailed Pocket Mouse
  Chaetodipus goldmani (Osgood, 1900) -- valid -- Goldman's Pocket Mouse
  Chaetodipus hispidus (Baird, 1858) -- valid -- Hispid Pocket Mouse, Ratón-de abazones crespo
  Chaetodipus intermedius (Merriam, 1889) -- valid -- Ratón-de abazones de roca, Rock Pocket Mouse
  Chaetodipus lineatus (Dalquest, 1951) -- valid -- Lined Pocket Mouse
  Chaetodipus nelsoni (Merriam, 1894) -- valid -- Nelson's Pocket Mouse, Ratón-de abazones de Nelson, Nelson's Coarse-haired Pocket Mouse
  Chaetodipus penicillatus (Woodhouse, 1852) -- valid -- Ratón-de abazones desértico, Desert Pocket Mouse
  Chaetodipus pernix (J. A. Allen, 1898) -- valid -- Sinaloan Pocket Mouse
  Chaetodipus spinatus (Merriam, 1889) -- valid -- Spiny Pocket Mouse, Ratón-de abazones de Baja California
  Chaetomyinae Thomas, 1897 -- valid
  Chaetomys Gray, 1843 -- valid
  Chaetomys subspinosus (Olfers, 1818) -- valid -- Bristle-spined Rat, Brazilian Bristle-spined Porcupine, Broomstraw-spined Porcupine, Thin-spined Porcupine
  Chaetophractus Fitzinger, 1871 -- valid -- Hairy Armadillos
  Chaetophractus nationi (Thomas, 1894) -- invalid -- Andean Hairy Armadillo
  Chaetophractus vellerosus (Gray, 1865) -- valid -- Screaming Hairy Armadillo
  Chaetophractus villosus (Desmarest, 1804) -- valid -- Large Hairy Armadillo, Big Hairy Armadillo
  Chalinolobus Peters, 1867 -- valid
  Chalinolobus alboguttatus (J. A. Allen, 1917) -- invalid -- Allen's striped bat
  Chalinolobus argentatus Dobson, 1875 -- invalid -- silvered bat
  Chalinolobus beatrix (Thomas, 1901) -- invalid -- Beatrix's bat
  Chalinolobus dwyeri Ryan, 1966 -- valid -- Large-eared Pied Bat, Large Pied Bat
  Chalinolobus egeria (Thomas, 1913) -- invalid -- Bibundi bat
  Chalinolobus gleni (Peterson and Smith, 1973) -- invalid -- Glen's wattled bat
  Chalinolobus gouldii (Gray, 1841) -- valid -- Gould's Wattled Bat
  Chalinolobus kenyacola (Peterson, 1982) -- invalid -- Kenyan wattled bat
  Chalinolobus morio (Gray, 1841) -- valid -- Chocolate Wattled Bat, Chocolate Lobe-lipped Bat
  Chalinolobus nigrogriseus (Gould, 1852) -- valid -- Hoary Wattled Bat
  Chalinolobus picatus (Gould, 1852) -- valid -- Little Pied Bat, Pied Bat
  Chalinolobus poensis (Gray, 1842) -- invalid
  Chalinolobus superbus (Hayman, 1939) -- invalid
  Chalinolobus tuberculatus (Forster, 1844) -- valid -- Long-tailed Wattled Bat, Long-tailed Bat
  Chalinolobus variegatus (Tomes, 1861) -- invalid
  Cheirogaleidae Gray, 1873 -- valid -- dwarf lemurs, mouse lemurs
  Cheirogaleinae Gray, 1873 -- invalid
  Cheirogaleus É. Geoffroy Saint-Hilaire, 1812 -- valid -- dwarf lemurs
  Cheirogaleus major É. Geoffroy Saint-Hilaire, 1812 -- valid -- Greater Dwarf Lemur
  Cheirogaleus medius É. Geoffroy Saint-Hilaire, 1812 -- valid -- Fat-tailed Dwarf Lemur, Lesser Dwarf Lemur
  Cheiromeles Horsfield, 1824 -- valid
  Cheiromeles torquatus Horsfield, 1824 -- valid -- hairless bat, Greater Naked Bat
  Chelemys Thomas, 1903 -- valid -- Greater Long-clawed Mice
  Chelemys macronyx (Thomas, 1894) -- valid -- Andean long-clawed mouse, Andean Long-clawed Akodont
  Chelemys megalonyx (Waterhouse, 1845) -- valid -- Large Long-clawed Mouse, Large Long-clawed Akodont
  Chibchanomys Voss, 1988 -- valid
  Chibchanomys trichotis (Thomas, 1897) -- valid -- Chibchan water mouse, Chibchan Ichthyomyine
  Chilomys Thomas, 1897 -- valid
  Chilomys instans (Thomas, 1895) -- valid -- Colombian forest mouse, Andean Chilomys
  Chimarrogale Anderson, 1877 -- valid
  Chimarrogale hantu Harrison, 1958 -- valid -- Malayan Water Shrew, Hantu Water Shrew
  Chimarrogale himalayica (Gray, 1842) -- valid -- Himalayan Water Shrew
  Chimarrogale phaeura Thomas, 1898 -- valid -- Bornean Water Shrew, Sunda Water Shrew
  Chimarrogale platycephala (Temminck, 1842) -- invalid -- Flat-headed Water Shrew
  Chimarrogale styani de Winton, 1899 -- valid -- Chinese Water Shrew, Styan's Water Shrew
  Chimarrogale sumatrana (Thomas, 1921) -- valid -- Sumatran Water Shrew, Sumatra Water Shrew
  Chinchilla Bennett, 1829 -- valid
  Chinchilla brevicaudata Waterhouse, 1848 -- invalid
  Chinchilla lanigera (Molina, 1782) -- invalid
  Chinchillidae Bennett, 1833 -- valid -- viscachas, chinchillas
  Chinchillula Thomas, 1898 -- valid
  Chinchillula sahamae Thomas, 1898 -- valid -- Altiplano Chinchilla Mouse, Achallo
  Chionomys Miller, 1908 -- valid -- Snow Voles
  Chionomys gud (Satunin, 1909) -- valid -- Caucasian snow vole, Gudaur Snow Vole
  Chionomys nivalis (Martins, 1842) -- valid -- European Snow Vole, Snow Vole
  Chionomys roberti (Thomas, 1906) -- valid -- Robert's Vole, Robert's Snow Vole
  Chiroderma Peters, 1860 -- valid -- big-eyed bats
  Chiroderma doriae Thomas, 1891 -- valid -- Brazilian Big-eyed Bat
  Chiroderma improvisum Baker and Genoways, 1976 -- valid -- Guadeloupe Big-eyed Bat, Guadeloupean Big-eyed Bat
  Chiroderma salvini Dobson, 1878 -- valid -- Salvin's Big-eyed Bat
  Chiroderma trinitatum Goodwin, 1958 -- valid -- Little Big-eyed Bat
  Chiroderma villosum Peters, 1860 -- valid -- Hairy Big-eyed Bat
  Chiromys Illiger, 1811 -- invalid
  Chiromyscus Thomas, 1925 -- valid
  Chiromyscus chiropus (Thomas, 1891) -- valid -- Indochinese Chiromyscus, Fea's Tree Rat
  Chironax K. Andersen, 1912 -- valid
  Chironax melanocephalus (Temminck, 1825) -- valid -- Black-capped Fruit Bat, Sundaic Black-capped Fruit Bat
  Chironectes Illiger, 1811 -- valid -- water opossum, yapok
  Chironectes minimus (Zimmermann, 1780) -- valid -- Tlacuache acuático, yapok, Water Opossum
  Chiropodomys Peters, 1868 -- valid -- Pencil-tailed Tree Mouse
  Chiropodomys calamianensis (Taylor, 1934) -- valid -- Palawan Pencil-tailed Tree Mouse
  Chiropodomys gliroides (Blyth, 1856) -- valid -- Indomalayan Pencil-tailed Tree Mouse
  Chiropodomys karlkoopmani Musser, 1979 -- valid -- Koopman's Pencil-tailed Tree Mouse
  Chiropodomys major Thomas, 1893 -- valid -- Greater Pencil-tailed Tree Mouse
  Chiropodomys muroides Medway, 1965 -- valid -- Gray-bellied Pencil-tailed Tree Mouse
  Chiropodomys pusillus Thomas, 1893 -- valid -- Lesser Pencil-tailed Tree Mouse
  Chiropotes Lesson, 1840 -- valid -- bearded sakis
  Chiropotes albinasus (I. Geoffroy Saint-Hilaire and Deville, 1848) -- valid -- White-nosed Bearded Saki, White-nosed Saki, Red-nosed Bearded Saki
  Chiropotes satanas (Hoffmannsegg, 1807) -- valid -- Brown-bearded Saki, Black Bearded Saki, Black Saki
  Chiroptera Blumenbach, 1779 -- valid -- morcego, quiróptero, bats
  Chiruromys Thomas, 1888 -- valid -- Tree Mice
  Chiruromys forbesi Thomas, 1888 -- valid -- Forbes's Chiruromys
  Chiruromys lamia (Thomas, 1897) -- valid -- Broad-headed Chiruromys
  Chiruromys vates (Thomas, 1908) -- valid -- Lesser Chiruromys
  Chlamyphorinae Bonaparte, 1850 -- valid -- pichiciegos
  Chlamyphorus Harlan, 1825 -- valid
  Chlamyphorus retusus Burmeister, 1863 -- invalid -- Chacoan Fairy Armadillo
  Chlamyphorus truncatus Harlan, 1825 -- valid -- Pink Fairy Armadillo
  Chlorocebus Gray, 1870 -- valid -- vervet monkeys, green monkeys
  Chlorocebus aethiops (Linnaeus, 1758) -- valid -- Grivet, Grivet Monkey
  Chlorotalpa Roberts, 1924 -- valid
  Chlorotalpa arendsi Lundholm, 1955 -- invalid -- Arend's golden mole
  Chlorotalpa duthieae (Broom, 1907) -- valid -- Duthie's Golden Mole
  Chlorotalpa leucorhina (Huet, 1885) -- invalid -- Congo golden mole
  Chlorotalpa sclateri (Broom, 1907) -- valid -- Sclater's Golden Mole
  Chlorotalpa tytonis (Simonetta, 1968) -- invalid -- Somali golden mole
  Choeroniscus Thomas, 1928 -- valid -- long-tailed bats
  Choeroniscus godmani (Thomas, 1903) -- valid -- Godman's Long-tongued Bat, Godman's Long-tailed Bat
  Choeroniscus intermedius (J. A. Allen and Chapman, 1893) -- invalid -- Intermediate Long-tailed Bat
  Choeroniscus minor (Peters, 1868) -- valid -- Lesser Long-tongued Bat, Lesser Long-tailed Bat
  Choeroniscus periosus Handley, 1966 -- valid -- Greater Long-tongued Bat, Greater Long-tailed Bat
  Choeronycteris Tschudi, 1844 -- valid -- long-tongued bats
  Choeronycteris mexicana Tschudi, 1844 -- valid -- Murciélago trompudo, Mexican Long-tongued Bat
  Choloepus Illiger, 1811 -- valid -- two-toed sloths
  Choloepus didactylus (Linnaeus, 1758) -- valid -- Southern Two-toed Sloth, Linnaeus's Two-toed Sloth
  Choloepus hoffmanni Peters, 1858 -- valid -- Hoffmann's Two-toed Sloth
  Chroeomys Thomas, 1916 -- invalid
  Chroeomys andinus (Philippi, 1858) -- invalid -- Andean Altiplano Mouse
  Chroeomys jelskii (Thomas, 1894) -- invalid -- Jelski's Altiplano Mouse
  Chrotogale Thomas, 1912 -- valid
  Chrotogale owstoni Thomas, 1912 -- valid -- Owston's Palm Civet
  Chrotomys Thomas, 1895 -- valid -- Philippine Striped Rats
  Chrotomys gonzalesi Rickart and Heaney, 1991 -- valid -- Isarog Chrotomys
  Chrotomys mindorensis Kellogg, 1945 -- valid -- Lowland Chrotomys
  Chrotomys whiteheadi Thomas, 1895 -- valid -- Montane Chrotomys
  Chrotopterus Peters, 1865 -- valid
  Chrotopterus auritus (Peters, 1856) -- valid -- Big-eared Woolly Bat, Woolly False Vampire Bat
  Chrysochloridae Gray, 1825 -- valid -- golden moles
  Chrysochloris Lacépède, 1799 -- valid
  Chrysochloris asiatica (Linnaeus, 1758) -- valid -- Cape Golden Mole
  Chrysochloris stuhlmanni Matschie, 1894 -- valid -- Stuhlmann's Golden Mole
  Chrysochloris visagiei Broom, 1950 -- valid -- Visagie's Golden Mole
  Chrysocyon C. E. H. Smith, 1839 -- valid
  Chrysocyon brachyurus (Illiger, 1815) -- valid -- Maned Wolf
  Chrysospalax Gill, 1883 -- valid
  Chrysospalax trevelyani (Günther, 1875) -- valid -- Giant Golden Mole
  Chrysospalax villosus (A. Smith, 1833) -- invalid -- Rough-haired Golden Mole
  Civettictis Pocock, 1915 -- valid
  Civettictis civetta (Schreber, 1776) -- valid -- African Civet
  Clethrionomys Tilesius, 1850 -- invalid -- red-backed voles
  Clethrionomys californicus (Merriam, 1890) -- invalid -- Western Red-backed Vole
  Clethrionomys centralis (Miller, 1906) -- invalid -- Tien Shan red-backed vole
  Clethrionomys gapperi (Vigors, 1830) -- invalid -- Southern Red-backed Vole, campagnol à dos roux de Gapper
  Clethrionomys glareolus (Schreber, 1780) -- invalid -- Bank vole
  Clethrionomys rufocanus (Sundevall, 1846) -- invalid -- Gray Red-backed Vole
  Clethrionomys rutilus (Pallas, 1779) -- invalid -- Northern Red-backed Vole
  Clethrionomys sikotanensis (Tokuda, 1935) -- invalid -- Shikotan vole
  Clidomyinae Woods, 1989 -- valid
  Clidomys Anthony, 1920 -- valid
  Clidomys osborni Anthony, 1920 -- valid -- Osborn's Key Mouse
  Clidomys parvus Anthony, 1920 -- invalid
  Cloeotis Thomas, 1901 -- valid
  Cloeotis percivali Thomas, 1901 -- valid -- Percival's Short-eared Trident Bat, Percival's Trident Bat
  Clyomys Thomas, 1916 -- valid
  Clyomys bishopi Ávila-Pires and Wutke, 1981 -- invalid -- Bishop's Fossorial Spiny Rat
  Clyomys laticeps (Thomas, 1909) -- valid -- Broad-headed Spiny Rat
  Coccymys Menzies, 1990 -- valid -- Brush Mice
  Coccymys albidens (Tate, 1951) -- invalid -- White-toothed Coccymys
  Coccymys ruemmleri (Tate and Archbold, 1941) -- valid -- Rümmler's Coccymys
  Coelops Blyth, 1848 -- valid
  Coelops frithi Blyth, 1848 -- invalid -- East Asian tailless leaf-nosed bat
  Coelops hirsutus (Miller, 1910) -- invalid -- Philippine tailless leaf-nosed bat
  Coelops robinsoni Bonhote, 1908 -- valid -- Malayan Tailless Leaf-nosed Bat
  Coendou Lacépède, 1799 -- valid
  Coendou bicolor (Tschudi, 1844) -- valid -- Bicolored-spined Porcupine
  Coendou koopmani Handley and Pine, 1992 -- invalid
  Coendou prehensilis (Linnaeus, 1758) -- valid -- Brazilian Porcupine, Prehensile-tailed Porcupine
  Coendou rothschildi Thomas, 1902 -- invalid -- Rothchild's Porcupine
  Coleura Peters, 1867 -- valid
  Coleura afra (Peters, 1852) -- valid -- Mozambique Sheath-tailed Bat, African Sheath-tailed Bat
  Coleura seychellensis Peters, 1868 -- valid -- Seychelles Sheath-tailed Bat
  Colobinae Jerdon, 1867 -- valid -- leaf-eating monkeys, colobines
  Colobus Illiger, 1811 -- valid -- black-and-white colobus
  Colobus angolensis Sclater, 1860 -- valid -- Angolan Colobus, Angola Colobus
  Colobus guereza Rüppell, 1835 -- valid -- Mantled Guereza, Guereza
  Colobus polykomos (Zimmermann, 1780) -- valid -- King Colobus
  Colobus satanas Waterhouse, 1838 -- valid -- Black Colobus
  Colomys Thomas and Wroughton, 1907 -- valid
  Colomys goslingi Thomas and Wroughton, 1907 -- valid -- African Wading Rat
  Comopithecus J. A. Allen, 1925 -- invalid
  Condylura Illiger, 1811 -- valid -- star-nosed moles
  Condylura cristata (Linnaeus, 1758) -- valid -- condylure étoilé, Star-nosed Mole
  Conepatus Gray, 1837 -- valid -- hog-nosed skunks
  Conepatus chinga (Molina, 1782) -- valid -- Molina's Hog-nosed Skunk
  Conepatus humboldtii Gray, 1837 -- valid -- Humboldt's Hog-nosed Skunk
  Conepatus leuconotus (Lichtenstein, 1832) -- valid -- American Hog-nosed Skunk, eastern hog-nosed skunk, Zorrillo-narigón occidental, white-backed hog-nosed skunk, badger skunk, rooter skunk, Texas skunk
  Conepatus mesoleucus (Lichtenstein, 1832) -- invalid -- western hog-nosed skunk, hog-nosed skunk, Zorrillo-narigón norteño
  Conepatus semistriatus (Boddaert, 1785) -- valid -- Striped Hog-nosed Skunk
  Congosorex Heim de Balsac and Lamotte, 1956 -- valid
  Congosorex polli (Heim de Balsac and Lamotte, 1956) -- valid -- Greater Congo Shrew, Poll's Shrew
  Conilurus Ogilby, 1838 -- valid -- Rabbit Rats
  Conilurus albipes (Lichtenstein, 1829) -- valid -- White-footed Conilurus
  Conilurus penicillatus (Gould, 1842) -- valid -- Brush-tailed Conilurus
  Connochaetes Lichtenstein, 1812 -- valid -- wildebeests
  Connochaetes gnou (Zimmermann, 1780) -- valid -- black wildebeest, Black Wildebeest
  Connochaetes taurinus (Burchell, 1823) -- valid -- Blue Wildebeest, blue wildebeest
  Cormura Peters, 1867 -- valid -- Chestnut Sac-winged Bat
  Cormura brevirostris (Wagner, 1843) -- valid -- Chestnut Sac-winged Bat
  Corynorhinus H. Allen, 1865 -- valid -- big-eared bats
  Corynorhinus mexicanus G. M. Allen, 1916 -- valid -- Murciélago-mula Mexicano, Mexican Big-eared Bat
  Corynorhinus rafinesquii (Lesson, 1827) -- valid -- Eastern Big-eared Bat, Eastern Long-eared Bat, Eastern Lump-nosed Bat, Southeastern Big-eared Bat, Rafinesque's Big-eared Bat
  Corynorhinus townsendii (Cooper, 1837) -- valid -- mule-eared bat, western big-eared bat, western long-eared bat, western lump-nosed bat, Pacific Townsend's big-eared bat, Townsend's Big-eared Bat
  Corynorhinus townsendii australis Handley, 1955 -- valid
  Corynorhinus townsendii ingens Handley, 1955 -- valid -- Ozark big-eared bat
  Corynorhinus townsendii pallescens Miller, 1897 -- valid -- pale Townsend's big-eared bat
  Corynorhinus townsendii townsendii (Cooper, 1837) -- valid -- Pacific Townsend's big-eared bat, Townsend's Big-eared Bat
  Corynorhinus townsendii virginianus Handley, 1955 -- valid -- Virginia big-eared bat
  Coryphomys Schaub, 1937 -- valid
  Coryphomys buehleri Schaub, 1937 -- valid -- Buhler's Coryphomys
  Craseonycteridae Hill, 1974 -- valid -- Hog-nosed Bat
  Craseonycteris Hill, 1974 -- valid -- Hog-nosed Bat
  Craseonycteris thonglongyai Hill, 1974 -- valid -- Hog-nosed Bat, Bumblebee Bat, Kitti's Hog-nosed Bat
  Crateromys Thomas, 1895 -- valid -- Bushy-tailed Cloud Rats
  Crateromys australis Musser, Heaney and Rabor, 1985 -- valid -- Dinagat Crateromys
  Crateromys paulus Musser and Gordon, 1981 -- valid -- Ilin Crateromys
  Crateromys schadenbergi (Meyer, 1895) -- valid -- Luzon Crateromys
  Cremnomys Wroughton, 1912 -- valid -- Indian Rats
  Cremnomys blanfordi (Thomas, 1881) -- invalid
  Cremnomys cutchicus Wroughton, 1912 -- valid -- Cutch Cremnomys, Cutch Rat
  Cremnomys elvira (Ellerman, 1947) -- valid -- Elvira Cremnomys
  Cricetidae Fischer, 1817 -- valid
  Cricetinae Fischer, 1817 -- valid
  Cricetomyinae Roberts, 1951 -- valid
  Cricetomys Waterhouse, 1840 -- valid -- African Giant Pouched Rats
  Cricetomys emini Wroughton, 1910 -- valid -- Giant Rat, Forest Giant Pouched Rat
  Cricetomys gambianus Waterhouse, 1840 -- valid -- Gambian Rat, Northern Giant Pouched Rat
  Cricetulus Milne-Edwards, 1867 -- valid -- Dwarf Hamsters
  Cricetulus alticola Thomas, 1917 -- valid -- Tibetan dwarf hamster, Ladak Dwarf Hamster, Short-tailed Tibetan Hamster
  Cricetulus barabensis (Pallas, 1773) -- valid -- Striped Hamster, Striped Dwarf Hamster
  Cricetulus kamensis (Satunin, 1903) -- valid -- Kam Dwarf Hamster, Tibetan Dwarf Hamster
  Cricetulus longicaudatus (Milne-Edwards, 1867) -- valid -- Long-tailed Dwarf Hamster, Lesser Long-tailed Hamster
  Cricetulus migratorius (Pallas, 1773) -- valid -- Migratory Hamster, Gray Dwarf Hamster
  Cricetulus sokolovi Orlov and Malygin, 1988 -- valid -- Sokolov's Dwarf Hamster
  Cricetus Leske, 1779 -- valid
  Cricetus cricetus (Linnaeus, 1758) -- valid -- Black-bellied Hamster, Common Hamster
  Crocidura Wagler, 1832 -- valid
  Crocidura aleksandrisi Vesmanis, 1977 -- valid -- Cyrenaica White-toothed Shrew, Cyrenaica Shrew, Alexandrian Shrew
  Crocidura allex Osgood, 1910 -- valid -- East African White-toothed Highland Shrew, East African Highland Shrew, Highland Shrew
  Crocidura andamanensis G. S. Miller, 1902 -- valid -- Andaman White-toothed Shrew, Andaman Shrew
  Crocidura ansellorum Hutterer and Dippenaar, 1987 -- valid -- Ansell's White-toothed Shrew, Ansell's Shrew
  Crocidura arabica Hutterer and Harrison, 1988 -- valid -- Arabian White-toothed Shrew, Arabian Shrew
  Crocidura armenica Gureev, 1963 -- invalid -- Armenian Shrew
  Crocidura attenuata A. Milne-Edwards, 1872 -- valid -- Asian Gray White-toothed Shrew, Asian Gray Shrew, Indochinese Shrew
  Crocidura attila Dollman, 1915 -- valid -- Hun White-toothed Shrew, Hun Shrew
  Crocidura baileyi Osgood, 1936 -- valid -- Bailey's White-toothed Shrew, Bailey's Shrew
  Crocidura batesi Dollman, 1915 -- valid -- Bates's White-toothed Shrew, Bate's Shrew, Bates's Shrew
  Crocidura beatus G. S. Miller, 1910 -- invalid -- Mindanao Shrew
  Crocidura beccarii Dobson, 1887 -- valid -- Beccari's White-toothed Shrew, Beccari's Shrew
  Crocidura bottegi Thomas, 1898 -- valid -- Bottego's White-toothed Shrew, Bottego's Shrew
  Crocidura bottegoides Hutterer and Yalden, 1990 -- valid -- Bale White-toothed Shrew, Bale Shrew
  Crocidura buettikoferi Jentink, 1888 -- valid -- Büttikofer's White-toothed Shrew, Buettikofer's Shrew
  Crocidura caliginea Hollister, 1916 -- valid -- African Dusky White-toothed Shrew, African Dusky Shrew, African Foggy Shrew
  Crocidura canariensis Hutterer, Lopez-Jurado and Vogel, 1987 -- valid -- Canarian White-toothed Shrew, Canarian Shrew, Canary Shrew
  Crocidura cinderella Thomas, 1911 -- valid -- Cinderella White-toothed Shrew, Cinderella Shrew
  Crocidura congobelgica Hollister, 1916 -- valid -- Congo White-toothed Shrew, Congo Shrew
  Crocidura cossyrensis Contoli, 1989 -- invalid -- Pantellerian Shrew
  Crocidura crenata Brosset, Dubost and Heim de Balsac, 1965 -- valid -- Long-footed White-toothed Shrew, Long-footed Shrew
  Crocidura crossei Thomas, 1895 -- valid -- Crosse's White-toothed Shrew, Crosse's Shrew
  Crocidura cyanea (Duvernoy, 1838) -- valid -- Reddish-gray White-toothed Shrew, Reddish-gray Musk Shrew
  Crocidura denti Dollman, 1915 -- valid -- Dent's White-toothed Shrew, Dent's Shrew
  Crocidura desperata Hutterer, Jenkins and Verheyen, 1991 -- valid -- Desperate White-toothed Shrew, Desperate Shrew
  Crocidura dhofarensis Hutterer and Harrison, 1988 -- valid -- Dhofar White-toothed Shrew, Dhofar Shrew, Dhofarian Shrew
  Crocidura dolichura Peters, 1876 -- valid -- Long-tailed White-toothed Shrew, Long-tailed Musk Shrew
  Crocidura douceti Heim de Balsac, 1958 -- valid -- Doucet's White-toothed Shrew, Doucet's Musk Shrew
  Crocidura dsinezumi (Temminck, 1842) -- valid -- Dsinezumi White-toothed Shrew, Dsinezumi Shrew
  Crocidura eisentrauti Heim de Balsac, 1957 -- valid -- Eisentraut's White-toothed Shrew, Eisentraut's Shrew
  Crocidura elgonius Osgood, 1910 -- valid -- Elgon White-toothed Shrew, Elgon Shrew
  Crocidura elongata G. S. Miller and Hollister, 1921 -- valid -- Elongated White-toothed Shrew, Elongated Shrew
  Crocidura erica Dollman, 1915 -- valid -- Heather White-toothed Shrew, Heather Shrew
  Crocidura fischeri Pagenstecher, 1885 -- valid -- Fischer's White-toothed Shrew, Fischer's Shrew
  Crocidura flavescens (I. Geoffroy Saint-Hilaire, 1827) -- valid -- Greater Red Musk Shrew, Greater Red White-toothed Shrew
  Crocidura floweri Dollman, 1915 -- valid -- Flower's Shrew, Flower's White-toothed Shrew
  Crocidura foxi Dollman, 1915 -- valid -- Fox's Shrew, Fox's White-toothed Shrew
  Crocidura fuliginosa (Blyth, 1855) -- valid -- Southeast Asian Shrew, Southeast Asian White-toothed Shrew
  Crocidura fulvastra (Sundevall, 1843) -- valid -- Savanna Shrew, Savanna White-toothed Shrew
  Crocidura fumosa Thomas, 1904 -- valid -- Smoky White-toothed Shrew
  Crocidura fuscomurina (Heuglin, 1865) -- valid -- Bicolored Musk Shrew, Tiny Musk Shrew, Bicolored African White-toothed Shrew
  Crocidura glassi Heim de Balsac, 1966 -- valid -- Glass's Shrew, Glass's White-toothed Shrew
  Crocidura goliath Thomas, 1906 -- valid -- Goliath Shrew, Goliath White-toothed Shrew
  Crocidura gracilipes Peters, 1870 -- valid -- Peters's Musk Shrew, Peters's White-toothed Shrew
  Crocidura grandiceps Hutterer, 1983 -- valid -- Large-headed Shrew, Large-headed White-toothed Shrew
  Crocidura grandis G. S. Miller, 1911 -- valid -- Greater Mindanao Shrew, Mount Malindang Shrew, Mt. Malindang Shrew, Mount Malindang White-toothed Shrew
  Crocidura grassei Brosset, Dubost and Heim de Balsac, 1965 -- valid -- Grasse's Shrew, Grasse's White-toothed Shrew
  Crocidura grayi Dobson, 1890 -- valid -- Luzon Shrew, Luzon White-toothed Shrew
  Crocidura greenwoodi Heim de Balsac, 1966 -- invalid -- Greenwood's Shrew
  Crocidura gueldenstaedtii (Pallas, 1811) -- valid -- Gueldenstaedt's Shrew, Güldenstädt's White-toothed Shrew
  Crocidura harenna Hutterer and Yalden, 1990 -- valid -- Harenna Shrew, Harenna White-toothed Shrew
  Crocidura hildegardeae Thomas, 1904 -- valid -- Hildegarde's Shrew, Hildegarde's White-toothed Shrew
  Crocidura hirta Peters, 1852 -- valid -- Lesser Red Musk Shrew, Lesser Red White-toothed Shrew
  Crocidura hispida Thomas, 1913 -- valid -- Andaman Spiny Shrew, Andaman Spiny White-toothed Shrew
  Crocidura horsfieldii Tomes, 1856 -- valid -- Horsfield's Shrew, Horsfield's White-toothed Shrew
  Crocidura jacksoni Thomas, 1904 -- valid -- Jackson's Shrew, Jackson's White-toothed Shrew
  Crocidura jenkinsi Chakraborty, 1978 -- valid -- Jenkin's Shrew, Jenkin's White-toothed Shrew
  Crocidura kivuana Heim de Balsac, 1968 -- valid -- Kivu Shrew, Kivu White-toothed Shrew
  Crocidura lamottei Heim de Balsac, 1968 -- valid -- Lamotte's Shrew, Lamotte's White-toothed Shrew
  Crocidura lanosa Heim de Balsac, 1968 -- valid -- Kivu Long-haired Shrew, Lemara Shrew, Kivu Long-haired White-toothed Shrew
  Crocidura lasiura Dobson, 1890 -- valid -- Ussuri White-toothed Shrew, Ussuri Shrew
  Crocidura latona Hollister, 1916 -- valid -- Latona's Shrew, Latona Shrew, Latona's White-toothed Shrew
  Crocidura lea G. S. Miller and Hollister, 1921 -- valid -- Sulawesi Shrew, Lesser Black-footed White-toothed Shrew
  Crocidura leucodon (Hermann, 1780) -- valid -- Bicolored Shrew, Bicolored White-toothed Shrew
  Crocidura levicula G. S. Miller and Hollister, 1921 -- valid -- Sulawesi Tiny Shrew, Celebes Shrew, Sulawesi Tiny White-toothed Shrew
  Crocidura littoralis Heller, 1910 -- valid -- Naked-tail Shrew, Butiaba Naked-tailed Shrew, Naked-tail White-toothed Shrew
  Crocidura longipes Hutterer and Happold, 1983 -- valid -- Savanna Swamp Shrew, Savanna White-toothed Swamp Shrew
  Crocidura lucina Dippenaar, 1980 -- valid -- Lucina's Shrew, Moorland Shrew, Lucina's White-toothed Shrew
  Crocidura ludia Hollister, 1916 -- valid -- Ludia's Shrew, Dramatic Shrew, Dramatic White-toothed Shrew
  Crocidura luna Dollman, 1910 -- valid -- Moonshine Shrew, Greater Gray-brown Musk Shrew, Moonshine White-toothed Shrew
  Crocidura lusitania Dollman, 1915 -- valid -- Mauritanian Shrew, Mauritanian White-toothed Shrew
  Crocidura macarthuri St. Leger, 1934 -- valid -- MacArthur's Shrew, MacArthur's White-toothed Shrew
  Crocidura macmillani Dollman, 1915 -- valid -- MacMillan's Shrew, MacMillan's White-toothed Shrew
  Crocidura macowi Dollman, 1915 -- valid -- Nyiro Shrew, Macow's Shrew, Nyiro White-toothed Shrew
  Crocidura malayana Robinson and Kloss, 1911 -- valid -- Malayan Shrew, Malayan White-toothed Shrew
  Crocidura manengubae Hutterer, 1982 -- valid -- Manenguba Shrew, Manenguba White-toothed Shrew
  Crocidura maquassiensis Roberts, 1946 -- valid -- Makwassie Musk Shrew, Maquassie Musk Shrew, Makwassie White-toothed Shrew
  Crocidura mariquensis (A. Smith, 1844) -- valid -- Swamp Musk Shrew, Swamp White-toothed Shrew
  Crocidura maurisca Thomas, 1904 -- valid -- Gracile Naked-tailed Shrew, Dark Shrew, Gracile White-toothed Shrew
  Crocidura maxi Sody, 1936 -- valid -- Javanese Shrew, Max's Shrew, Javan White-toothed Shrew
  Crocidura mindorus G. S. Miller, 1910 -- valid -- Mindoro Shrew, Mindoro White-toothed Shrew
  Crocidura minuta Otten, 1917 -- invalid -- Minute Shrew
  Crocidura miya Phillips, 1929 -- valid -- Sri Lankan Long-tailed Shrew, Sri Lankan White-toothed Shrew
  Crocidura monax Thomas, 1910 -- valid -- Kilimanjaro Shrew, Rombo Shrew, Kilimanjaro White-toothed Shrew
  Crocidura monticola Peters, 1870 -- valid -- Sunda Shrew, Sunda White-toothed Shrew
  Crocidura montis Thomas, 1906 -- valid -- Montane White-toothed Shrew
  Crocidura muricauda (G. S. Miller, 1900) -- valid -- West African Long-tailed Shrew, Mouse-tailed Shrew, West African White-toothed Shrew
  Crocidura mutesae Heller, 1910 -- valid -- Ugandan Musk Shrew, Uganda Large-toothed Shrew, Ugandan White-toothed Shrew
  Crocidura nana Dobson, 1890 -- valid -- Somali Dwarf Shrew, Dwarf White-toothed Shrew, Somali Dwarf White-toothed Shrew
  Crocidura nanilla Thomas, 1909 -- valid -- Savanna Dwarf Shrew, Tiny White-toothed Shrew, Savanna Dwarf White-toothed Shrew
  Crocidura neglecta Jentink, 1888 -- valid -- Neglected Shrew, Neglected White-toothed Shrew
  Crocidura negrina Rabor, 1952 -- valid -- Negros Shrew, Negros White-toothed Shrew
  Crocidura nicobarica G. S. Miller, 1902 -- valid -- Nicobar Shrew, Nicobar White-toothed Shrew
  Crocidura nigeriae Dollman, 1915 -- valid -- Nigerian Shrew, Nigerian White-toothed Shrew
  Crocidura nigricans Bocage, 1889 -- valid -- Blackish White-toothed Shrew, Black White-toothed Shrew
  Crocidura nigripes G. S. Miller and Hollister, 1921 -- valid -- Black-footed Shrew, Black-footed White-toothed Shrew
  Crocidura nigrofusca Matschie, 1895 -- valid -- African Black Shrew, Tenebrous Shrew, African Black White-toothed Shrew
  Crocidura nimbae Heim de Balsac, 1956 -- valid -- Nimba Shrew, Nimba White-toothed Shrew
  Crocidura niobe Thomas, 1906 -- valid -- Niobe's Shrew, Stony Shrew, Niobe's White-toothed Shrew
  Crocidura obscurior Heim de Balsac, 1958 -- valid -- West African Pygmy Shrew, Obscure White-toothed Shrew, West African Pygmy White-toothed Shrew
  Crocidura olivieri (Lesson, 1827) -- valid -- African Giant Shrew, Olivier's Shrew, African Giant White-toothed Shrew
  Crocidura orii Kuroda, 1924 -- valid -- Ryukyu Shrew, Amami Shrew, Greater Ryukyu White-toothed Shrew
  Crocidura osorio Molina and Hutterer, 1989 -- invalid -- Osorio Shrew
  Crocidura palawanensis Taylor, 1934 -- valid -- Palawan Shrew, Palawan White-toothed Shrew
  Crocidura paradoxura Dobson, 1886 -- valid -- Sumatran Long-tailed Shrew, Paradox Shrew, Sumatran Long-tailed White-toothed Shrew
  Crocidura parvipes Osgood, 1910 -- valid -- Small-footed Shrew, Small-footed White-toothed Shrew
  Crocidura pasha Dollman, 1915 -- valid -- Sahelian Tiny Shrew, Pasha Shrew, Sahelian Tiny White-toothed Shrew
  Crocidura pergrisea G. S. Miller, 1913 -- valid -- Pale Gray Shrew
  Crocidura phaeura Osgood, 1936 -- valid -- Guramba Shrew, Guramba White-toothed Shrew
  Crocidura picea Sanderson, 1940 -- valid -- Cameroonian Shrew, Pitch Shrew, Cameroon White-toothed Shrew
  Crocidura pitmani Barclay, 1932 -- valid -- Pitman's Shrew, Pitman's White-toothed Shrew
  Crocidura planiceps Heller, 1910 -- valid -- Flat-headed Shrew, Flat-headed White-toothed Shrew
  Crocidura poensis (Fraser, 1843) -- valid -- Fraser's Musk Shrew, Fraser's White-toothed Shrew
  Crocidura polia Hollister, 1916 -- valid -- Polia's Shrew, Fuscous Shrew, Polia's White-toothed Shrew
  Crocidura pullata G. S. Miller, 1911 -- valid -- Kashmir White-toothed Shrew, Dusky Shrew
  Crocidura raineyi Heller, 1912 -- valid -- Rainey's Shrew, Rainey Shrew, Rainey's White-toothed Shrew
  Crocidura religiosa (I. Geoffroy Saint-Hilaire, 1827) -- valid -- Egyptian Pygmy Shrew, Egyptian Pygmy White-toothed Shrew
  Crocidura rhoditis G. S. Miller and Hollister, 1921 -- valid -- Sulawesi White-handed Shrew, Temboan Shrew, Temboan White-toothed Shrew
  Crocidura roosevelti (Heller, 1910) -- valid -- Roosevelt's Shrew, Roosevelt's White-toothed Shrew
  Crocidura russula (Hermann, 1780) -- valid -- Greater White-toothed Shrew, White-toothed Shrew
  Crocidura selina Dollman, 1915 -- valid -- Ugandan Lowland Shrew, Moon Shrew, Ugandan Lowland White-toothed Shrew
  Crocidura serezkyensis Laptev, 1929 -- valid -- Lesser Rock Shrew, Serezkaya Shrew, Serezkaya White-toothed Shrew
  Crocidura sibirica Dukelsky, 1930 -- valid -- Siberian Shrew, Siberian White-toothed Shrew
  Crocidura sicula G. S. Miller, 1900 -- valid -- Sicilian Shrew, Sicilian White-toothed Shrew
  Crocidura silacea Thomas, 1895 -- valid -- Lesser Gray-brown Musk Shrew, Lesser Gray-brown White-toothed Shrew
  Crocidura smithii Thomas, 1895 -- valid -- Desert Musk Shrew, Desert White-toothed Shrew
  Crocidura somalica Thomas, 1895 -- valid -- Somali Shrew, Somali White-toothed Shrew
  Crocidura stenocephala Heim de Balsac, 1979 -- valid -- Kahuzi Swamp Shrew, Narrow-headed Shrew, Kahuzi White-toothed Swamp Shrew
  Crocidura suaveolens (Pallas, 1811) -- valid -- Lesser White-toothed Shrew, Lesser Shrew
  Crocidura susiana Redding and Lay, 1978 -- valid -- Iranian Shrew, Iranian White-toothed Shrew
  Crocidura tansaniana Hutterer, 1986 -- valid -- Tanzanian Shrew, Tanzanian White-toothed Shrew
  Crocidura tarella Dollman, 1915 -- valid -- Tarella Shrew, Ugandan Shrew, Tarella White-toothed Shrew
  Crocidura tarfayensis I. Vesmanis and A. Vesmanis, 1980 -- valid -- Saharan Shrew, Tarfaya Shrew, Saharan White-toothed Shrew
  Crocidura telfordi Hutterer, 1986 -- valid -- Telford's Shrew, Telford's White-toothed Shrew
  Crocidura tenuis (Müller, 1840) -- valid -- Timor Shrew, Thin Shrew, Timor White-toothed Shrew
  Crocidura thalia Dippenaar, 1980 -- valid -- Thalia's Shrew, Thalia Shrew, Thalia's White-toothed Shrew
  Crocidura theresae Heim de Balsac, 1968 -- valid -- Therese's Shrew, Therese's White-toothed Shrew
  Crocidura thomensis (Bocage, 1887) -- valid -- São Tomé Shrew, São Tomé White-toothed Shrew
  Crocidura turba Dollman, 1910 -- valid -- Turbo Shrew, Tumultuous Shrew, Turbo White-toothed Shrew
  Crocidura ultima Dollman, 1915 -- valid -- Ultimate Shrew, Ultimate White-toothed Shrew
  Crocidura usambarae Dippenaar, 1980 -- valid -- Usambara Shrew, Usambara White-toothed Shrew
  Crocidura viaria (I. Geoffroy Saint-Hilaire, 1834) -- valid -- Savanna Path Shrew, Savanna Path White-toothed Shrew
  Crocidura voi Osgood, 1910 -- valid -- Voi Shrew, Voi White-toothed Shrew
  Crocidura whitakeri de Winton, 1898 -- valid -- Whitaker's Shrew, Whitaker's White-toothed Shrew
  Crocidura wimmeri Heim de Balsac and Aellen, 1958 -- valid -- Wimmer's Shrew, Wimmer's White-toothed Shrew
  Crocidura xantippe Osgood, 1910 -- valid -- Xanthippe's Shrew, Vermiculate Shrew, Xanthippe's White-toothed Shrew
  Crocidura yankariensis Hutterer and Jenkins, 1980 -- valid -- Yankari Shrew, Yankari White-toothed Shrew
  Crocidura zaphiri Dollman, 1915 -- valid -- Zaphir's Shrew, Zaphiro's White-toothed Shrew
  Crocidura zarudnyi Ognev, 1928 -- valid -- Zarudny's Rock Shrew, Zarudny's Shrew, Zarudny's White-toothed Shrew
  Crocidura zimmeri Osgood, 1936 -- valid -- Upemba Shrew, Zimmer's Shrew, Upemba White-toothed Shrew
  Crocidura zimmermanni Wettstein, 1953 -- valid -- Cretan Shrew, Zimmermann's Shrew, Cretan White-toothed Shrew
  Crocidurinae A. Milne-Edwards, 1872 -- valid -- white-toothed shrews
  Crocuta Kaup, 1828 -- valid -- Spotted Hyena
  Crocuta crocuta (Erxleben, 1777) -- valid -- Spotted Hyena
  Crossarchus F. Cuvier, 1825 -- valid
  Crossarchus alexandri Thomas and Wroughton, 1907 -- valid -- Alexander's Cusimanse, Alexander's Kusimanse
  Crossarchus ansorgei Thomas, 1910 -- valid -- Ansorge's cusimanse, Angolan Kusimanse, Angolan Cusimanse
  Crossarchus obscurus F. Cuvier, 1825 -- valid -- long-nosed cusimanse, Common Kusimanse, Common Cusimanse
  Crossomys Thomas, 1907 -- valid
  Crossomys moncktoni Thomas, 1907 -- valid -- Earless New Guinea Water Rat
  Crunomys Thomas, 1897 -- valid -- Philippine Shrew Rats
  Crunomys celebensis Musser, 1982 -- valid -- Sulawesi Shrew Mouse
  Crunomys fallax Thomas, 1897 -- valid -- Luzon Shrew Mouse
  Crunomys melanius Thomas, 1907 -- valid -- Mindanao Shrew Mouse
  Crunomys rabori Musser, 1982 -- invalid
  Cryptochloris Shortridge and Carter, 1938 -- valid
  Cryptochloris wintoni (Broom, 1907) -- valid -- De Winton's Golden Mole
  Cryptochloris zyli Shortridge and Carter, 1938 -- valid -- Van Zyl's Golden Mole
  Cryptomys Gray, 1864 -- valid
  Cryptomys bocagei (de Winton, 1897) -- invalid -- Bocage's Mole-rat
  Cryptomys damarensis (Ogilby, 1838) -- invalid -- Damara Mole-rat
  Cryptomys foxi (Thomas, 1911) -- invalid -- Nigerian Mole-rat
  Cryptomys hottentotus (Lesson, 1826) -- valid -- Southern African Mole-rat, Common Mole-rat
  Cryptomys mechowi (Peters, 1881) -- invalid -- Giant Mole-rat
  Cryptomys ochraceocinereus (Heuglin, 1864) -- invalid -- Ochre Mole-rat
  Cryptomys zechi (Matschie, 1900) -- invalid -- Togo Mole-rat
  Cryptoprocta Bennett, 1833 -- valid
  Cryptoprocta ferox Bennett, 1833 -- valid -- Fossa
  Cryptoproctinae Gray, 1865 -- invalid
  Cryptotis Pomel, 1848 -- valid -- small-eared shrews
  Cryptotis avia G. M. Allen, 1923 -- invalid -- Andean Small-eared Shrew
  Cryptotis endersi Setzer, 1950 -- valid -- Enders's Small-eared Shrew
  Cryptotis goldmani (Merriam, 1895) -- valid -- Goldman's Broad-clawed Shrew, Goldman's Small-eared Shrew
  Cryptotis goodwini Jackson, 1933 -- valid -- Goodwin's Broad-clawed Shrew, Goodwin's Small-eared Shrew
  Cryptotis gracilis G. S. Miller, 1911 -- valid -- Talamancan Small-eared Shrew, Talamancan Broad-clawed Shrew
  Cryptotis hondurensis Woodman and Timm, 1992 -- valid -- Honduran Small-eared Shrew
  Cryptotis magna (Merriam, 1895) -- invalid -- Big Mexican Small-eared Shrew, Big Small-eared Shrew
  Cryptotis meridensis (Thomas, 1898) -- valid -- Merida Small-eared Shrew
  Cryptotis mexicana (Coues, 1877) -- invalid -- Mexican Small-eared Shrew
  Cryptotis montivaga (Anthony, 1921) -- invalid -- Wandering Small-eared Shrew, Ecuadorean Small-eared Shrew
  Cryptotis nigrescens (J. A. Allen, 1895) -- valid -- Blackish Small-eared Shrew
  Cryptotis parva (Say, 1823) -- invalid -- bee shrew, little short-tailed shrew, small short-tailed shrew, Least Shrew, Musaraña-orejillas mínima, North American Least Shrew
  Cryptotis squamipes (J. A. Allen, 1912) -- valid -- Western Colombian Small-eared Shrew, Scaly-footed Small-eared Shrew
  Cryptotis thomasi (Merriam, 1897) -- valid -- Thomas' Small-eared Shrew, Thomas's Small-eared Shrew
  Ctenodactylidae Gervais, 1853 -- valid -- Gundis, Comb Rats
  Ctenodactylus Gray, 1830 -- valid -- Common Gundis
  Ctenodactylus gundi (Rothmann, 1776) -- valid -- Common Gundi, Gundi, North African Gundi, Northern Gundi, Atlas Gundi
  Ctenodactylus vali Thomas, 1902 -- valid -- Val's Gundi, Desert Gundi, Sahara Gundi, Thomas's Gundi
  Ctenomyidae Lesson, 1842 -- valid -- tuco-tucos
  Ctenomys Blainville, 1826 -- valid
  Ctenomys argentinus J. R. Contreras and Berry, 1982 -- valid -- Argentine Tuco-tuco
  Ctenomys australis Rusconi, 1934 -- valid -- Southern Tuco-tuco, Dune Tuco-tuco
  Ctenomys azarae Thomas, 1903 -- valid -- Azara's Tuco-tuco
  Ctenomys boliviensis Waterhouse, 1848 -- valid -- Bolivian Tuco-tuco
  Ctenomys bonettoi J. R. Contreras and Berry, 1982 -- valid -- Bonetto's Tuco-tuco
  Ctenomys brasiliensis Blainville, 1826 -- valid -- Brazilian Tuco-tuco
  Ctenomys colburni J. A. Allen, 1903 -- invalid -- Colburn's Tuco-tuco, White-bellied Tuco-tuco
  Ctenomys conoveri Osgood, 1946 -- valid -- Chacoan Tuco-tuco
  Ctenomys dorsalis Thomas, 1900 -- valid -- Black-backed Tuco-tuco
  Ctenomys emilianus Thomas and St. Leger, 1926 -- valid -- Emilio's Tuco-tuco
  Ctenomys frater Thomas, 1902 -- valid -- Reddish Tuco-tuco, Forest Tuco-tuco
  Ctenomys fulvus Philippi, 1860 -- valid -- Tawny Tuco-tuco, Long-tailed Tuco-tuco
  Ctenomys haigi Thomas, 1917 -- valid -- Haig's Tuco-tuco, Patagonian Tuco-tuco
  Ctenomys knighti Thomas, 1919 -- valid -- Catamarca Tuco-tuco
  Ctenomys latro Thomas, 1918 -- valid -- Mottled Tuco-tuco
  Ctenomys leucodon Waterhouse, 1848 -- valid -- White-toothed Tuco-tuco
  Ctenomys lewisi Thomas, 1926 -- valid -- Lewis' Tuco-tuco
  Ctenomys magellanicus Bennett, 1836 -- valid -- Magellanic Tuco-tuco
  Ctenomys maulinus Philippi, 1872 -- valid -- Maule Tuco-tuco
  Ctenomys mendocinus Philippi, 1869 -- valid -- Mendoza Tuco-tuco
  Ctenomys minutus Nehring, 1887 -- valid -- Tiny Tuco-tuco, Minute Tuco-tuco
  Ctenomys nattereri Wagner, 1848 -- valid -- Natterer's Tuco-tuco
  Ctenomys occultus Thomas, 1920 -- valid -- Furtive Tuco-tuco
  Ctenomys opimus Wagner, 1848 -- valid -- Highland Tuco-tuco, Andean Tuco-tuco
  Ctenomys pearsoni Lessa and Langguth, 1983 -- valid -- Pearson's Tuco-tuco
  Ctenomys perrensis Thomas, 1896 -- invalid
  Ctenomys peruanus Sanborn and Pearson, 1947 -- valid -- Peruvian Tuco-tuco
  Ctenomys pontifex Thomas, 1918 -- valid -- San Luis Tuco-tuco, Brown Tuco-tuco
  Ctenomys porteousi Thomas, 1916 -- valid -- Porteous's Tuco-tuco, Cinnamon Tuco-tuco
  Ctenomys saltarius Thomas, 1912 -- valid -- Salta Tuco-tuco
  Ctenomys sericeus J. A. Allen, 1903 -- valid -- Silky Tuco-tuco
  Ctenomys sociabilis Pearson and Christie, 1985 -- valid -- Colonial Tuco-tuco
  Ctenomys steinbachi Thomas, 1907 -- valid -- Steinbach's Tuco-tuco
  Ctenomys talarum Thomas, 1898 -- valid -- Los Talas Tuco-tuco, Talas Tuco-tuco
  Ctenomys torquatus Lichtenstein, 1830 -- valid -- Collared Tuco-tuco
  Ctenomys tuconax Thomas, 1925 -- valid -- Robust Tuco-tuco
  Ctenomys tucumanus Thomas, 1900 -- valid -- Tucumán Tuco-tuco
  Ctenomys validus J. R. Contreras, Roig and Suzarte, 1977 -- invalid -- Guanacache Tuco-tuco, Guaymallen Tuco-tuco
  Cuon Hodgson, 1838 -- valid
  Cuon alpinus (Pallas, 1811) -- valid -- Dhole, Indian dhole, Asiatic Wild Dog, Red Dog
  Cyclopes Gray, 1821 -- valid -- pygmy anteaters
  Cyclopes didactylus (Linnaeus, 1758) -- valid -- Silky Anteater
  Cynictis Ogilby, 1833 -- valid
  Cynictis penicillata (G. Cuvier, 1829) -- valid -- Yellow Mongoose
  Cynocephalidae Simpson, 1945 -- valid
  Cynocephalus G. Cuvier and É. Geoffroy Saint-Hilaire, 1795 -- invalid
  Cynocephalus Boddaert, 1768 -- valid
  Cynocephalus variegatus (Audebert, 1799) -- invalid -- Malayan Flying Lemur
  Cynocephalus volans (Linnaeus, 1758) -- valid -- Philippine Flying Lemur, Philippine Colugo
  Cynogale Gray, 1837 -- valid
  Cynogale bennettii Gray, 1837 -- valid -- Otter Civet
  Cynomys Rafinesque, 1817 -- valid -- Prairie Dogs
  Cynomys gunnisoni (Baird, 1855) -- valid -- Gunnison's Prairie Dog
  Cynomys leucurus Merriam, 1890 -- valid -- White-tailed Prairie Dog
  Cynomys ludovicianus (Ord, 1815) -- valid -- Arizona black-tailed prairie dog, Perro-llanero cola negra, Black-tailed Prairie Dog
  Cynomys mexicanus Merriam, 1892 -- valid -- Mexican Prairie Dog, Mexican prairie marmot
  Cynomys parvidens J. A. Allen, 1905 -- valid -- Utah Prairie Dog
  Cynopterus F. Cuvier, 1824 -- valid
  Cynopterus brachyotis (Müller, 1838) -- valid -- Lesser Short-nosed Fruit Bat
  Cynopterus horsfieldi Gray, 1843 -- invalid -- Horsfield's fruit bat
  Cynopterus nusatenggara Kitchener and Maharadatunkamsi, 1991 -- valid -- Nusatenggara Short-nosed Fruit Bat
  Cynopterus sphinx (Vahl, 1797) -- valid -- Greater Short-nosed Fruit Bat
  Cynopterus titthaecheilus (Temminck, 1825) -- valid -- Indonesian Short-nosed Fruit Bat
  Cystophora Nilsson, 1820 -- valid -- hooded seals
  Cystophora cristata (Erxleben, 1777) -- valid -- Hooded Seal, bladdernose seal, phoque à capuchon
  Cyttarops Thomas, 1913 -- valid -- Short-eared Bat
  Cyttarops alecto Thomas, 1913 -- valid -- Short-eared Bat
  Dacnomys Thomas, 1916 -- valid
  Dacnomys millardi Thomas, 1916 -- valid -- Millard's Dacnomys, Large-toothed Rat, Millard's Rat
  Dactylomyinae Tate, 1935 -- invalid
  Dactylomys I. Geoffroy Saint-Hilaire, 1838 -- valid
  Dactylomys boliviensis Anthony, 1920 -- valid -- Bolivian Bamboo Rat
  Dactylomys dactylinus (Desmarest, 1817) -- valid -- Amazon Bamboo Rat
  Dactylomys peruanus J. A. Allen, 1900 -- valid -- Montane Bamboo Rat
  Dactylopsila Gray, 1858 -- valid
  Dactylopsila megalura Rothschild and Dollman, 1932 -- valid -- Great-tailed Triok, Great-tailed Striped Possum
  Dactylopsila palpator A. Milne-Edwards, 1888 -- valid -- Long-fingered Triok, Long-fingered Striped Possum
  Dactylopsila tatei Laurie, 1952 -- valid -- Tate's Triok, Tate's Striped Possum
  Dactylopsila trivirgata Gray, 1858 -- valid -- Striped Possum, Torresian Striped Possum
  Dama Frisch, 1775 -- valid -- fallow deer
  Dama dama (Linnaeus, 1758) -- valid -- fallow deer, Fallow Deer
  Dama mesopotamica (Brooke, 1875) -- invalid -- Mesopotamian fallow deer, Persian fallow deer
  Dama virginiana Zimmermann, 1780 -- invalid
  Dama virginiana clavia (Barbour and G. M. Allen, 1922) -- invalid
  Dama virginiana leucura (Douglas, 1829) -- invalid
  Dama virginianus Zimmermann, 1780 -- invalid
  Dama virginianus leucurus (Douglas, 1829) -- invalid
  Damaliscus P. L. Sclater and Thomas, 1894 -- valid -- sassabies
  Damaliscus hunteri (P. L. Sclater, 1889) -- invalid -- hirola
  Damaliscus lunatus (Burchell, 1823) -- valid -- topi, Common Tsessebe
  Damaliscus pygargus (Pallas, 1767) -- valid -- bontebok, Bontebok (see comments)
  Dasycercus Peters, 1875 -- valid -- mulgara
  Dasycercus byrnei (Spencer, 1896) -- invalid
  Dasycercus cristicauda (Krefft, 1867) -- valid -- Mulgara, Crest-tailed Mulgara
  Dasykaluta Archer, 1982 -- valid
  Dasykaluta rosamondae (Ride, 1964) -- valid -- Little Red Kaluta, Kaluta
  Dasymys Peters, 1875 -- valid -- Shaggy African Marsh Rats
  Dasymys foxi Thomas, 1912 -- valid -- Fox's Dasymys
  Dasymys incomtus (Sundevall, 1847) -- valid -- Common Dasymys
  Dasymys montanus Thomas, 1906 -- valid -- Ruwenzori Dasymys
  Dasymys nudipes (Peters, 1870) -- valid -- Angolan Dasymys
  Dasymys rufulus Miller, 1900 -- valid -- West African Dasymys
  Dasypodidae Gray, 1821 -- valid -- Armadillos
  Dasypodinae Gray, 1821 -- invalid -- armadillos
  Dasyprocta Illiger, 1811 -- valid -- agoutis
  Dasyprocta azarae Lichtenstein, 1823 -- valid -- Azara's Agouti
  Dasyprocta coibae Thomas, 1902 -- valid -- Coiban Agouti
  Dasyprocta cristata (É. Geoffroy Saint-Hilaire, 1803) -- invalid -- Crested Agouti
  Dasyprocta fuliginosa Wagler, 1832 -- valid -- Black Agouti
  Dasyprocta guamara Ojasti, 1972 -- valid -- Orinoco Agouti
  Dasyprocta kalinowskii Thomas, 1897 -- valid -- Kalinowski's Agouti
  Dasyprocta leporina (Linnaeus, 1758) -- valid -- Red-rumped Agouti, Common Red-rumped Agouti
  Dasyprocta mexicana Saussure, 1860 -- valid -- Mexican Agouti, Guaqueque mexicano
  Dasyprocta prymnolopha Wagler, 1831 -- valid -- Black-rumped Agouti
  Dasyprocta punctata Gray, 1842 -- valid -- Central American Agouti, Guaqueque centroamericano
  Dasyprocta ruatanica Thomas, 1901 -- valid -- Roatán Island Agouti
  Dasyproctidae Bonaparte, 1838 -- valid -- agoutis, acouchys
  Dasypus Linnaeus, 1758 -- valid -- Long-nosed Armadillos
  Dasypus hybridus (Desmarest, 1804) -- invalid -- Southern Long-nosed Armadillo
  Dasypus kappleri Krauss, 1862 -- valid -- Greater Long-nosed Armadillo
  Dasypus novemcinctus Linnaeus, 1758 -- valid -- long-nosed armadillo, Armadillo nueve bandas, Nine-banded Armadillo
  Dasypus pilosus (Fitzinger, 1856) -- valid -- Hairy Long-nosed Armadillo
  Dasypus sabanicola Mondolfi, 1968 -- valid -- Llanos Long-nosed Armadillo, Northern Long-nosed Armadillo
  Dasypus septemcinctus Linnaeus, 1758 -- valid -- Seven-banded Armadillo, Brazilian Lesser Long-nosed Armadillo
  Dasyuridae Goldfuss, 1820 -- valid -- carnivorous marsupials
  Dasyuromorphia Gill, 1872 -- valid
  Dasyurus É. Geoffroy Saint-Hilaire, 1796 -- valid -- native 'cats', tiger 'cats', Quolls
  Dasyurus albopunctatus Schlegel, 1880 -- valid -- New Guinean Quoll, New Guinea Quoll
  Dasyurus geoffroii Gould, 1841 -- valid -- Western Quoll
  Dasyurus hallucatus Gould, 1842 -- valid -- Northern Quoll
  Dasyurus maculatus (Kerr, 1792) -- valid -- Tiger Quoll, Spotted-tail Quoll
  Dasyurus spartacus Van Dyck, 1987 -- valid -- Bronze Quoll
  Dasyurus viverrinus (Shaw, 1800) -- valid -- Eastern Quoll, Eastern native-cat
  Daubentonia É. Geoffroy Saint-Hilaire, 1795 -- valid
  Daubentonia madagascariensis (Gmelin, 1788) -- valid -- Aye-aye
  Daubentoniidae Gray, 1863 -- valid -- Aye-aye
  Delanymys Hayman, 1962 -- valid
  Delanymys brooksi Hayman, 1962 -- valid -- Delany's Swamp Mouse
  Delomys Thomas, 1917 -- valid -- Atlantic Forest Rats
  Delomys dorsalis (Hensel, 1873) -- valid -- Striped Atlantic Forest Rat, Striped Delomys
  Delomys sublineatus (Thomas, 1903) -- valid -- Pallid Atlantic Forest Rat, Pallid Delomys
  Delphinapterus Lacépède, 1804 -- valid -- white whales, belugas
  Delphinapterus leucas (Pallas, 1776) -- valid -- white whale, béluga, Beluga, belukha
  Delphinidae Gray, 1821 -- valid -- dolphins, killer whales, pilot whales, marine dolphins
  Delphinus Linnaeus, 1758 -- valid -- common dolphins
  Delphinus capensis Gray, 1828 -- invalid -- Long-beaked Common Dolphin, long-beaked saddle-backed dolphin, long-beaked saddleback dolphin
  Delphinus delphis Linnaeus, 1758 -- valid -- saddle-backed dolphin, common dolphin, Short-beaked Common Dolphin, short-beaked saddle-backed dolphin, Short-beaked Saddleback Dolphin, Delfín común
  Dendrogale Gray, 1848 -- valid -- Smooth-tailed Tree Shrews
  Dendrogale melanura (Thomas, 1892) -- valid -- Bornean Smooth-Tailed Treeshrew
  Dendrogale murina (Schlegel and Müller, 1843) -- valid -- Northern Smooth-Tailed Treeshrew
  Dendrohyrax Gray, 1868 -- valid -- Tree Hyraxes
  Dendrohyrax arboreus (A. Smith, 1827) -- valid -- Southern Tree Hyrax
  Dendrohyrax dorsalis (Fraser, 1854) -- valid -- Western Tree Hyrax
  Dendrohyrax validus True, 1890 -- valid -- Eastern Tree Hyrax
  Dendrolagus S. Müller, 1840 -- valid -- tree kangaroos
  Dendrolagus bennettianus De Vis, 1886 -- valid -- Bennett's Tree-kangaroo, Bennett's Tree Kangaroo
  Dendrolagus dorianus Ramsay, 1883 -- valid -- Doria's Tree-kangaroo, Doria's Tree Kangaroo
  Dendrolagus goodfellowi Thomas, 1908 -- valid -- Goodfellow's Tree-kangaroo, Goodfellow's Tree Kangaroo
  Dendrolagus inustus S. Müller, 1840 -- valid -- Grizzled Tree-kangaroo, Grizzled Tree Kangaroo
  Dendrolagus lumholtzi Collett, 1884 -- valid -- Lumholtz's Tree-kangaroo, Lumholtz's Tree Kangaroo
  Dendrolagus matschiei Förster and Rothschild, 1907 -- valid -- Huon Tree-kangaroo, Huon Tree Kangaroo
  Dendrolagus scottae Flannery and Seri, 1990 -- valid -- Tenkile, Scott's Tree Kangaroo
  Dendrolagus spadix Troughton and Le Souef, 1936 -- valid -- Lowlands Tree-kangaroo, Lowland Tree Kangaroo
  Dendrolagus ursinus (Temminck, 1836) -- valid -- Ursine Tree-kangaroo, Vogelkop Tree Kangaroo
  Dendromurinae G. M. Allen, 1939 -- valid
  Dendromus A. Smith, 1829 -- valid -- African Climbing Mice
  Dendromus insignis (Thomas, 1903) -- valid -- Remarkable Climbing Mouse, Montane African Climbing Mouse
  Dendromus kahuziensis Dieterlen, 1969 -- valid -- Mt. Kahuzi Climbing Mouse, Mt Kahuzi African Climbing Mouse
  Dendromus kivu Thomas, 1916 -- invalid -- Kivu climbing mouse
  Dendromus lovati (de Winton, 1900) -- valid -- Lovat's Climbing Mouse, Lovat's African Climbing Mouse
  Dendromus melanotis (A. Smith, 1834) -- valid -- Gray Climbing Mouse, Gray African Climbing Mouse
  Dendromus mesomelas (Brants, 1827) -- valid -- Brant's Climbing Mouse, Brants's African Climbing Mouse
  Dendromus messorius (Thomas, 1903) -- valid -- Banana Climbing Mouse, Banana African Climbing Mouse
  Dendromus mystacalis (Heuglin, 1863) -- valid -- Chestnut Climbing Mouse, Chestnut African Climbing Mouse
  Dendromus nyikae Wroughton, 1909 -- valid -- Nyika Climbing Mouse, Nyika African Climbing Mouse
  Dendromus oreas Osgood, 1936 -- valid -- Cameroon Climbing Mouse, Cameroon African Climbing Mouse
  Dendromus vernayi Hill and Carter, 1937 -- valid -- Vernay's Climbing Mouse, Vernay's African Climbing Mouse
  Dendroprionomys F. Petter, 1966 -- valid
  Dendroprionomys rousseloti F. Petter, 1966 -- valid -- Velvet Climbing Mouse, Velvet African Climbing Mouse
  Deomys Thomas, 1888 -- valid
  Deomys ferrugineus Thomas, 1888 -- valid -- Congo forest mouse, Congo Forest Rat
  Dephomys Thomas, 1926 -- valid
  Dephomys defua (Miller, 1900) -- valid -- Defua Dephomys
  Dephomys eburnea (Heim de Balsac and Bellier, 1967) -- invalid
  Dermoptera Illiger, 1811 -- valid -- colugos, Flying Lemurs
  Desmana Güldenstädt, 1777 -- valid
  Desmana moschata (Linnaeus, 1758) -- valid -- Desman, Russian Desman
  Desmaninae Thomas, 1912 -- invalid
  Desmodilliscus Wettstein, 1916 -- valid
  Desmodilliscus braueri Wettstein, 1916 -- valid -- Pouched Gerbil
  Desmodillus Thomas and Schwann, 1904 -- valid
  Desmodillus auricularis (A. Smith, 1834) -- valid -- Cape short-eared gerbil, Cape Short-tailed Gerbil
  Desmodontinae Wagner, 1840 -- valid -- vampire bats
  Desmodus Wied-Neuwied, 1826 -- valid
  Desmodus rotundus (E. Geoffroy, 1810) -- valid -- Vampire Bat, Common Vampire Bat
  Desmomys Thomas, 1910 -- valid
  Desmomys harringtoni (Thomas, 1902) -- valid -- Harrington's Desmomys
  Diaemus Miller, 1906 -- valid
  Diaemus youngi (Jentink, 1893) -- invalid -- White-winged Vampire Bat
  Dicerorhinus Gloger, 1841 -- valid
  Dicerorhinus sumatrensis (G. Fischer [von Waldheim], 1814) -- valid -- Hairy Rhinoceros, Asian Two-horned Rhinoceros, Badak Kerbau, Sumatran Rhinoceros, Badak Sumbu
  Diceros Gray, 1821 -- valid
  Diceros bicornis (Linnaeus, 1758) -- valid -- African black rhinoceros, Black Rhinoceros
  Diclidurus Wied-Neuwied, 1820 -- valid -- ghost bats
  Diclidurus albus Wied-Neuwied, 1820 -- valid -- White Ghost Bat, Northern Ghost Bat
  Diclidurus ingens Hernández-Camacho, 1955 -- valid -- Greater Ghost Bat
  Diclidurus isabellus (Thomas, 1920) -- invalid -- Isabelle's Ghost Bat
  Diclidurus scutatus Peters, 1869 -- valid -- Little Ghost Bat, Lesser Ghost Bat
  Dicrostonyx Gloger, 1841 -- valid -- Collared Lemmings
  Dicrostonyx exsul G. M. Allen, 1919 -- invalid -- St. Lawrence Island collared lemming
  Dicrostonyx groenlandicus (Traill, 1823) -- valid -- Northern Collared Lemming, Greenland Collared Lemming, Nearctic Collared Lemming, Collared Lemming
  Dicrostonyx hudsonius (Pallas, 1778) -- valid -- lemming d'Ungava, Labrador Collared Lemming, Ungava Collared Lemming
  Dicrostonyx kilangmiutak Anderson and Rand, 1945 -- invalid -- Victoria collared lemming, Kilangmiutak collared lemming
  Dicrostonyx nelsoni Merriam, 1900 -- valid -- Nelson's Collared Lemming
  Dicrostonyx nunatakensis Youngman, 1967 -- valid -- Ogilvie Mountain Collared Lemming, Ogilvie Mountains Collared Lemming
  Dicrostonyx richardsoni Merriam, 1900 -- valid -- Richardson's Collared Lemming
  Dicrostonyx rubricatus (Richardson, 1839) -- invalid -- Bering collared lemming, Tundra Collared Lemming
  Dicrostonyx torquatus (Pallas, 1778) -- valid -- Arctic Lemming, Collared Lemming, Palearctic Collared Lemming
  Dicrostonyx unalascensis Merriam, 1900 -- valid -- Aleutian Island Collared Lemming, Unalaska Collared Lemming
  Dicrostonyx vinogradovi Ognev, 1948 -- valid -- Wrangel Lemming, Wrangel Island Collared Lemming
  Didelphidae Gray, 1821 -- valid -- opossoms, American opossums
  Didelphimorphia Gill, 1872 -- valid -- didelfimorfo, American marsupials, marsupial
  Didelphinae Gray, 1821 -- valid
  Didelphis Linnaeus, 1758 -- valid -- large American opossums
  Didelphis albiventris Lund, 1840 -- valid -- White-eared Opossum, Brazilian White-eared Opossum
  Didelphis aurita Wied-Neuwied, 1826 -- valid -- Southern Black-eared Opossum, gambá, Big-eared Opossum
  Didelphis marsupialis Linnaeus, 1758 -- valid -- Tlacuache sureño, Common Opossum, Northern Black-eared Opossum, gambá, mucura
  Didelphis virginiana Kerr, 1792 -- valid -- Tlacuache norteño, opossum d'Amérique, Virginia Opossum
  Dinaromys Kretzoi, 1955 -- valid
  Dinaromys bogdanovi (Martino, 1922) -- valid -- Martino's Snow Vole, Balkan Snow Vole
  Dinomyidae Peters, 1873 -- valid -- pacarana
  Dinomys Peters, 1873 -- valid
  Dinomys branickii Peters, 1873 -- valid -- Pacarana
  Diomys Thomas, 1917 -- valid
  Diomys crumpi Thomas, 1917 -- valid -- Crump's Diomys, Crump's Mouse
  Diphylla Spix, 1823 -- valid -- hairy-legged vampire bats
  Diphylla ecaudata Spix, 1823 -- valid -- Vampiro pata peluda, Hairy-legged Vampire Bat
  Diplogale Thomas, 1912 -- valid
  Diplogale hosei (Thomas, 1892) -- valid -- Hose's Palm Civet
  Diplomesodon Brandt, 1852 -- valid
  Diplomesodon pulchellum (Lichtenstein, 1823) -- invalid -- Piebald Shrew
  Diplomys Thomas, 1916 -- valid
  Diplomys caniceps (Günther, 1877) -- valid -- Colombian Soft-furred Spiny-rat, Colombian Rufous Tree-rat
  Diplomys labilis (Bangs, 1901) -- valid -- Rufous Soft-furred Spiny-rat, Central American Rufous Tree-rat
  Diplomys rufodorsalis (J. A. Allen, 1899) -- invalid -- Red Crested Soft-furred Spiny-rat
  Diplothrix Thomas, 1916 -- valid
  Diplothrix legatus (Thomas, 1906) -- invalid
  Dipodidae Fischer de Waldheim, 1817 -- valid -- jumping mice, birch mice, Jerboas
  Dipodinae Fischer de Waldheim, 1817 -- valid
  Dipodomyinae Gervais, 1853 -- valid
  Dipodomys Gray, 1841 -- valid -- Kangaroo Rats
  Dipodomys agilis Gambel, 1848 -- valid -- Rata-canguro ágil, Agile Kangaroo Rat
  Dipodomys californicus Merriam, 1890 -- valid -- California Kangaroo Rat
  Dipodomys californicus californicus Merriam, 1890 -- valid
  Dipodomys cascus Huey, 1962 -- invalid
  Dipodomys compactus True, 1889 -- valid -- Rata-canguro de Del Padre, Gulf Coast Kangaroo Rat
  Dipodomys deserti Stephens, 1887 -- valid -- Rata-canguro desértica, Desert Kangaroo Rat
  Dipodomys elator Merriam, 1894 -- valid -- Texas Kangaroo Rat
  Dipodomys elephantinus (Grinnell, 1919) -- invalid -- Big-eared Kangaroo Rat
  Dipodomys gravipes Huey, 1925 -- valid -- San Quintin Kangaroo Rat
  Dipodomys heermanni LeConte, 1853 -- valid -- Heermann's Kangaroo Rat
  Dipodomys ingens (Merriam, 1904) -- valid -- Giant Kangaroo Rat
  Dipodomys insularis Merriam, 1907 -- invalid -- San Jose Island Kangaroo Rat
  Dipodomys margaritae Merriam, 1907 -- invalid -- Margarita Island Kangaroo Rat
  Dipodomys merriami Mearns, 1890 -- valid -- Rata-canguro de Merriam, Merriam's Kangaroo Rat
  Dipodomys merriami exilis Merriam, 1894 -- invalid
  Dipodomys merriami merriami Mearns, 1890 -- valid
  Dipodomys merriami nitratoides Merriam, 1894 -- invalid
  Dipodomys microps (Merriam, 1904) -- valid -- Chisel-toothed Kangaroo Rat
  Dipodomys microps leucotis Goldman, 1931 -- valid -- Marble Canyon kangaroo rat
  Dipodomys microps microps (Merriam, 1904) -- valid
  Dipodomys nelsoni Merriam, 1907 -- valid -- Nelson's Kangaroo Rat
  Dipodomys nitratoides Merriam, 1894 -- valid -- San Joaquin Valley Kangaroo Rat, San Joaquin kangaroo rat, Fresno Kangaroo Rat
  Dipodomys ordii Woodhouse, 1853 -- valid -- Rata-canguro común, Ord's Kangaroo Rat
  Dipodomys panamintinus (Merriam, 1894) -- valid -- Panamint Kangaroo Rat
  Dipodomys phillipsii Gray, 1841 -- valid -- Phillips's Kangaroo Rat, Phillips' Kangaroo Rat
  Dipodomys spectabilis Merriam, 1890 -- valid -- Rata-canguro cola de bandera, Banner-tailed Kangaroo Rat
  Dipodomys stephensi (Merriam, 1907) -- valid -- Stephens' kangaroo rat, Stephens's Kangaroo Rat
  Dipodomys venustus (Merriam, 1904) -- valid -- Narrow-faced Kangaroo Rat
  Diprotodontia Owen, 1866 -- valid
  Dipus Zimmermann, 1780 -- valid -- Hairy-footed Jerboas
  Dipus sagitta (Pallas, 1773) -- valid -- Northern Three-toed Jerboa
  Distoechurus Peters, 1874 -- valid
  Distoechurus pennatus (Peters, 1874) -- valid -- Feather-tailed Possum
  Dobsonia Palmer, 1898 -- valid
  Dobsonia beauforti Bergmans, 1975 -- valid -- Beaufort's Naked-backed Fruit Bat
  Dobsonia chapmani Rabor, 1952 -- valid -- Negros Naked-backed Fruit Bat, Philippine Naked-backed Fruit Bat
  Dobsonia emersa Bergmans and Sarbini, 1985 -- valid -- Biak Naked-backed Fruit Bat
  Dobsonia exoleta K. Andersen, 1909 -- valid -- Sulawesi Naked-backed Fruit Bat
  Dobsonia inermis K. Andersen, 1909 -- valid -- Solomons Naked-backed Fruit Bat
  Dobsonia minor (Dobson, 1879) -- valid -- Lesser Naked-backed Fruit Bat
  Dobsonia moluccensis (Quoy and Gaimard, 1830) -- valid -- Moluccan Naked-backed Fruit Bat
  Dobsonia pannietensis (De Vis, 1905) -- valid -- Panniet Naked-backed Fruit Bat
  Dobsonia peroni (E. Geoffroy, 1810) -- invalid -- western naked-backed fruit bat
  Dobsonia praedatrix K. Andersen, 1909 -- valid -- New Britain Naked-backed Fruit Bat
  Dobsonia viridis (Heude, 1896) -- valid -- Greenish Naked-backed Fruit Bat
  Dolichotinae Pocock, 1922 -- valid -- maras
  Dolichotis Desmarest, 1820 -- valid
  Dolichotis patagonum (Zimmermann, 1780) -- valid -- Patagonian Mara
  Dolichotis salinicola Burmeister, 1876 -- invalid -- Chacoan Mara
  Dologale Thomas, 1926 -- valid
  Dologale dybowskii (Pousargues, 1893) -- valid -- Pousargues' mongoose, Pousargues's Mongoose
  Dorcatragus Noack, 1894 -- valid
  Dorcatragus megalotis (Menges, 1894) -- valid -- beira, Beira
  Dorcopsis Schlegel and S. Müller, 1845 -- valid -- New Guinean forest wallabies
  Dorcopsis atrata Van Deusen, 1957 -- valid -- Black Dorcopsis, Black Forest Wallaby
  Dorcopsis hageni Heller, 1897 -- valid -- White-striped Dorcopsis, White-striped Forest Wallaby
  Dorcopsis luctuosa (D'Albertis, 1874) -- valid -- Gray Dorcopsis, Grey Forest Wallaby
  Dorcopsis muelleri (Lesson, 1827) -- valid -- Brown Dorcopsis, Brown Forest Wallaby
  Dorcopsulus Matschie, 1916 -- valid
  Dorcopsulus macleayi (Miklouho-Maclay, 1885) -- valid -- Macleay's Dorcopsis, Macleay's Forest Wallaby
  Dorcopsulus vanheurni (Thomas, 1922) -- valid -- Small Dorcopsis, Small Forest Wallaby
  Dremomys Heude, 1898 -- valid -- Red-cheeked Squirrels
  Dremomys everetti (Thomas, 1890) -- valid -- Bornean Mountain Ground Squirrel
  Dremomys lokriah (Hodgson, 1836) -- valid -- Orange-bellied Himalayan Squirrel
  Dremomys pernyi (Milne-Edwards, 1867) -- valid -- Perny's Long-nosed Squirrel
  Dremomys pyrrhomerus (Thomas, 1895) -- valid -- Red-hipped Squirrel
  Dremomys rufigenis (Blanford, 1878) -- valid -- Asian Red-cheeked Squirrel
  Dromiciops Thomas, 1894 -- valid -- monito del monte
  Dromiciops gliroides Thomas, 1894 -- valid -- Monito del Monte, monito del monte
  Dryomys Thomas, 1906 -- valid -- Forest Dormice
  Dryomys laniger Felten and Storch, 1968 -- valid -- Woolly Dormouse, Woolly Forest Dormouse
  Dryomys nitedula (Pallas, 1778) -- valid -- Forest Dormouse
  Dryomys sichuanensis (Wang, 1985) -- invalid -- Chinese Dormouse
  Dugong Lacépède, 1799 -- valid -- dugongs
  Dugong dugon (P. L. S. Müller, 1776) -- valid -- Dugong
  Dugongidae Gray, 1821 -- valid -- sea cows, dugongs
  Dusicyon C. E. H. Smith, 1839 -- valid
  Dusicyon australis (Kerr, 1792) -- valid -- Falkland Island wolf, Falkland Islands Wolf, Falkland Warrah
  Dusicyon microtis (Sclater, 1883) -- invalid -- small-eared dog
  Dyacopterus K. Andersen, 1912 -- valid
  Dyacopterus spadiceus (Thomas, 1890) -- valid -- Dyak Fruit Bat, Common Dyak Fruit Bat
  Echidna G. Cuvier, 1797 -- invalid
  Echimyidae Gray, 1825 -- valid -- hutias, South American spiny-rats, coypu
  Echimyinae Gray, 1825 -- valid
  Echimys G. Cuvier, 1809 -- valid
  Echimys blainvillei (F. Cuvier, 1837) -- invalid
  Echimys braziliensis (Waterhouse, 1848) -- invalid
  Echimys chrysurus (Zimmermann, 1780) -- valid -- White-faced Spiny Tree-rat, White-faced Tree-rat
  Echimys dasythrix (Hensel, 1872) -- invalid
  Echimys grandis (Wagner, 1845) -- invalid
  Echimys lamarum (Thomas, 1916) -- invalid
  Echimys macrurus (Wagner, 1842) -- invalid
  Echimys nigrispinus (Wagner, 1842) -- invalid
  Echimys pictus (Pictet, 1841) -- invalid
  Echimys rhipidurus Thomas, 1928 -- invalid
  Echimys saturnus Thomas, 1928 -- valid -- Dark Spiny Tree-rat, Dark Tree-rat
  Echimys semivillosus (I. Geoffroy Saint-Hilaire, 1838) -- invalid -- Speckled Spiny Tree-rat
  Echimys thomasi (Ihering, 1871) -- invalid
  Echimys unicolor (Wagner, 1842) -- invalid
  Echinoprocta Gray, 1865 -- invalid
  Echinoprocta rufescens Gray, 1865 -- invalid -- Stump-tailed Porcupine
  Echinops Martin, 1838 -- valid
  Echinops telfairi Martin, 1838 -- valid -- Lesser Hedgehog Tenrec
  Echinopus G. Fischer, 1814 -- invalid
  Echinosorex Blainville, 1838 -- valid
  Echinosorex gymnura (Raffles, 1822) -- invalid -- Moonrat
  Echiothrix Gray, 1867 -- valid
  Echiothrix leucura Gray, 1867 -- valid -- Northern Sulawesi Echiothrix
  Echymipera Lesson, 1842 -- valid -- New Guinean spiny bandicoots
  Echymipera clara Stein, 1932 -- valid -- Clara's Echymipera
  Echymipera davidi Flannery, 1990 -- valid -- David's Echymipera
  Echymipera echinista Menzies, 1990 -- valid -- Menzies' Echymipera
  Echymipera kalubu (Fischer, 1829) -- valid -- Common Echymipera
  Echymipera rufescens (Peters and Doria, 1875) -- valid -- Long-nosed Echymipera
  Ectophylla H. Allen, 1892 -- valid
  Ectophylla alba H. Allen, 1892 -- valid -- Honduran White Bat, White Bat
  Edentata Vicq-d'Azyr, 1792 -- invalid -- anteaters, armadillos, edentates, sloths
  Eidolon Rafinesque, 1815 -- valid
  Eidolon dupreanum (Pollen in Schlegel and Pollen, 1866) -- valid -- Madagascan fruit bat, Malagasy Straw-colored Fruit Bat, Madagascan Straw-colored Fruit Bat
  Eidolon helvum (Kerr, 1792) -- valid -- straw-colored fruit bat, African Straw-colored Fruit Bat
  Eira C. E. H. Smith, 1842 -- valid -- Tayra
  Eira barbara (Linnaeus, 1758) -- valid -- Tayra
  Elaphodus Milne-Edwards, 1872 -- valid
  Elaphodus cephalophus Milne-Edwards, 1872 -- valid -- tufted deer, Tufted Deer
  Elaphurus Milne-Edwards, 1866 -- valid
  Elaphurus davidianus Milne-Edwards, 1866 -- valid -- Père David's deer, Père David's Deer
  Elasmodontomys Anthony, 1916 -- valid
  Elasmodontomys obliquus Anthony, 1916 -- valid -- Plate-toothed Giant Hutia
  Elephantidae Gray, 1821 -- valid
  Elephantulus Thomas and Schwann, 1906 -- valid -- Long-eared Elephant Shrews
  Elephantulus brachyrhynchus (A. Smith, 1836) -- valid -- Short-snouted Elephant Shrew, Short-snouted Sengi
  Elephantulus edwardii (A. Smith, 1839) -- valid -- Cape Elephant Shrew, Cape Rock Sengi
  Elephantulus fuscipes (Thomas, 1894) -- valid -- Dusky-footed Elephant Shrew, Dusky-footed Sengi
  Elephantulus fuscus (Peters, 1852) -- valid -- Dusky Elephant Shrew, Dusky Sengi
  Elephantulus intufi (A. Smith, 1836) -- valid -- Bushveld Elephant Shrew, Bushveld Sengi
  Elephantulus myurus Thomas and Schwann, 1906 -- valid -- Eastern Rock Elephant Shrew, Eastern Rock Sengi
  Elephantulus revoili (Huet, 1881) -- invalid -- Somali Elephant Shrew, Somali Sengi
  Elephantulus rozeti (Duvernoy, 1833) -- invalid -- North African Elephant Shrew
  Elephantulus rufescens (Peters, 1878) -- invalid -- Rufous Elephant Shrew, Rufous Sengi
  Elephantulus rupestris (A. Smith, 1831) -- valid -- Western Rock Elephant Shrew, Western Rock Sengi
  Elephas Linnaeus, 1758 -- valid -- Asian elephants
  Elephas maximus Linnaeus, 1758 -- valid -- Asiatic Elephant, Asian Elephant
  Eligmodontia F. Cuvier, 1837 -- valid -- Gerbil Mice
  Eligmodontia moreni (Thomas, 1896) -- valid -- Monte Gerbil Mouse, Monte Laucha
  Eligmodontia morgani J. A. Allen, 1901 -- valid -- Morgan's gerbil mouse, Western Patagonian Laucha
  Eligmodontia puerulus (Philippi, 1896) -- valid -- Andean gerbil mouse, Altiplano Laucha
  Eligmodontia typus F. Cuvier, 1837 -- valid -- Highland Gerbil Mouse, Eastern Patagonian Laucha
  Eliomys Wagner, 1840 -- valid -- Garden Dormice
  Eliomys melanurus (Wagner, 1840) -- valid -- Asian Garden Dormouse, Large-eared Garden Dormouse, South-West Asian Garden Dormouse
  Eliomys quercinus (Linnaeus, 1766) -- valid -- Garden Dormouse
  Eliurus Milne-Edwards, 1885 -- valid -- Tufted-tailed Rats
  Eliurus majori Thomas, 1895 -- valid -- Major's Tufted-tailed Rat
  Eliurus minor Forsyth Major, 1896 -- valid -- Lesser Tufted-tailed Rat
  Eliurus myoxinus Milne-Edwards, 1885 -- valid -- Dormouse Tufted-tailed Rat, Western Tufted-tailed Rat
  Eliurus penicillatus Thomas, 1908 -- valid -- White-tipped Tufted-tailed Rat
  Eliurus tanala Forsyth Major, 1896 -- valid -- Tanala Tufted-tailed Rat
  Eliurus webbi Ellerman, 1949 -- valid -- Webb's Tufted-tailed Rat
  Ellobius Fischer, 1814 -- valid -- Mole Voles
  Ellobius alaicus Vorontsov et al., 1969 -- valid -- Alai Mole Vole
  Ellobius fuscocapillus Blyth, 1843 -- valid -- Southern Mole Vole, Afghan Mole-Vole
  Ellobius lutescens Thomas, 1897 -- valid -- Transcaucasian Mole Vole
  Ellobius talpinus (Pallas, 1770) -- valid -- Northern Mole Vole
  Ellobius tancrei Blasius, 1884 -- valid -- Zaisan mole vole, Eastern Mole Vole
  Emballonura Temminck, 1838 -- valid
  Emballonura alecto (Eydoux and Gervais, 1836) -- valid -- Philippine Sheath-tailed Bat, Small Asian Sheath-tailed Bat
  Emballonura atrata Peters, 1874 -- invalid -- Peters's Sheath-tailed Bat
  Emballonura beccarii Peters and Doria, 1881 -- valid -- Beccari's Sheath-tailed Bat
  Emballonura dianae Hill, 1956 -- valid -- Large-eared Sheath-tailed Bat
  Emballonura furax Thomas, 1911 -- valid -- New Guinea Sheath-tailed Bat, Greater Sheath-tailed Bat, New Guinean Sheath-tailed Bat
  Emballonura monticola Temminck, 1838 -- valid -- Lesser Sheath-tailed Bat
  Emballonura raffrayana Dobson, 1879 -- valid -- Raffray's Sheath-tailed Bat
  Emballonura semicaudata (Peale, 1848) -- valid -- Pacific Sheath-tailed Bat, Caroline Sheath-tailed Bat, Mariana Sheath-tailed Bat, Polynesian Sheath-tailed Bat
  Emballonura sulcata Miller, 1911 -- invalid -- Caroline Sheath-tailed Bat
  Emballonuridae Gervais, 1855 -- valid -- sac-winged bats, sheath-tailed bats
  Enhydra Fleming, 1822 -- valid -- sea otters
  Enhydra lutris (Linnaeus, 1758) -- valid -- Sea Otter, Nutria Marina
  Enhydra lutris kenyoni Wilson, 1991 -- valid -- Northern Sea Otter, Eastern Sea Otter
  Eolagurus Argyropulo, 1946 -- valid
  Eolagurus luteus (Eversmann, 1840) -- valid -- Yellow Steppe Lemming
  Eolagurus przewalskii (Büchner, 1889) -- valid -- Przewalski's Steppe Lemming
  Eonycteris Dobson, 1873 -- valid
  Eonycteris major K. Andersen, 1910 -- valid -- Greater Dawn Bat
  Eonycteris spelaea (Dobson, 1871) -- valid -- Lesser Dawn Bat
  Eothenomys Miller, 1896 -- valid -- South Asian Voles
  Eothenomys chinensis (Thomas, 1891) -- valid -- Sichuan Red-Backed Vole, Pratt's Vole
  Eothenomys custos (Thomas, 1912) -- valid -- Southwest China Vole, Southwest China Red-backed Vole
  Eothenomys eva (Thomas, 1911) -- invalid -- Ganzu Vole
  Eothenomys inez (Thomas, 1908) -- invalid -- Kolan vole
  Eothenomys melanogaster (Milne-Edwards, 1871) -- valid -- Père David's Red-backed Vole, Père David's Vole
  Eothenomys olitor (Thomas, 1911) -- valid -- Chaotung vole, Black-eared Red-backed Vole
  Eothenomys proditor Hinton, 1923 -- valid -- Yulungshan vole, Yulongxuen Red-backed Vole
  Eothenomys regulus (Thomas, 1907) -- invalid -- Royal vole
  Eothenomys shanseius (Thomas, 1908) -- invalid -- Shansei Vole
  Eozapus Preble, 1899 -- valid
  Eozapus setchuanus (Pousargues, 1896) -- valid -- Chinese Jumping Mouse
  Epixerus Thomas, 1909 -- valid -- African Palm Squirrels
  Epixerus ebii (Temminck, 1853) -- valid -- Western Palm Squirrel, Palm Squirrel, African Palm Squirrel, Ebian's palm squirrel, Temminck's giant squirrel
  Epixerus wilsoni (Du Chaillu, 1860) -- invalid -- Biafran Palm Squirrel
  Epomophorus Bennett, 1836 -- valid
  Epomophorus angolensis Gray, 1870 -- valid -- Angolan Epauletted Fruit Bat
  Epomophorus gambianus (Ogilby, 1835) -- valid -- Gambian Epauletted Fruit Bat
  Epomophorus grandis (Sanborn, 1950) -- valid -- lesser Angolan epauletted fruit bat, Sanborn's Epauletted Fruit Bat
  Epomophorus labiatus (Temminck, 1837) -- valid -- Ethiopian epauletted fruit bat, Little Epauletted Fruit Bat
  Epomophorus minimus Claessen and De Vree, 1991 -- invalid -- East African epauletted fruit bat, Least Epauletted Fruit Bat
  Epomophorus wahlbergi (Sundevall, 1846) -- valid -- Wahlberg's Epauletted Fruit Bat
  Epomops Gray, 1870 -- valid
  Epomops buettikoferi (Matschie, 1899) -- valid -- Buettikofer's epauletted bat, Büttikofer's Epauletted Fruit Bat
  Epomops dobsoni (Bocage, 1889) -- invalid -- Dobson's fruit bat
  Epomops franqueti (Tomes, 1860) -- valid -- Franquet's epauletted bat, Franquet's Epauletted Fruit Bat
  Eptesicus Rafinesque, 1820 -- valid -- big brown bats
  Eptesicus baverstocki Kitchener, Jones and Caputi, 1987 -- invalid -- inland forest bat
  Eptesicus bobrinskoi Kuzyakin, 1935 -- invalid -- Bobrinski's Serotine
  Eptesicus bottae (Peters, 1869) -- valid -- Botta's Serotine
  Eptesicus brasiliensis (Desmarest, 1819) -- valid -- Brazilian Brown Bat, Brazilian Serotine
  Eptesicus brunneus (Thomas, 1880) -- invalid -- dark-brown serotine
  Eptesicus capensis (A. Smith, 1829) -- invalid -- Cape serotine
  Eptesicus demissus Thomas, 1916 -- invalid -- Surat serotine
  Eptesicus diminutus Osgood, 1915 -- valid -- Diminutive Serotine
  Eptesicus douglasorum Kitchener, 1976 -- invalid -- yellow-lipped bat
  Eptesicus flavescens (Seabra, 1900) -- invalid -- yellow serotine
  Eptesicus floweri (de Winton, 1901) -- valid -- horn-skinned bat, Horn-skinned Serotine, Flower's Serotine, Sudan Horn-skinned Bat
  Eptesicus furinalis (d'Orbigny, 1847) -- valid -- Argentine Brown Bat, Argentinian Brown Bat, Argentine Serotine
  Eptesicus fuscus (Palisot de Beauvois, 1796) -- valid -- Murciélago-moreno norteamericano, grande chauve-souris brune, Big Brown Bat
  Eptesicus guadeloupensis Genoways and Baker, 1975 -- valid -- Guadeloupe big brown bat, Guadeloupean Big Brown Bat, Guadeloupe Serotine
  Eptesicus guineensis (Bocage, 1889) -- invalid -- tiny serotine
  Eptesicus hottentotus (A. Smith, 1833) -- valid -- long-tailed house bat, Long-tailed Serotine, Hottentot Bat, Long-tailed Greater Serotine Bat
  Eptesicus innoxius (Gervais, 1841) -- valid -- Harmless Serotine
  Eptesicus kobayashii Mori, 1928 -- invalid -- Kobayashi's Serotine
  Eptesicus melckorum Roberts, 1919 -- invalid -- Melck's house bat
  Eptesicus nasutus (Dobson, 1877) -- invalid -- Sind Bat
  Eptesicus nilssoni (Keyserling and Blasius, 1839) -- invalid -- northern bat
  Eptesicus pachyotis (Dobson, 1871) -- valid -- Thick-eared Bat, Thick-eared Serotine
  Eptesicus platyops (Thomas, 1901) -- valid -- Lagos Serotine
  Eptesicus pumilus (Gray, 1841) -- invalid -- eastern forest bat
  Eptesicus regulus Thomas, 1906 -- invalid -- southern forest bat
  Eptesicus rendalli (Thomas, 1889) -- invalid -- Rendall's Serotine
  Eptesicus sagittula McKean, Richards and Price, 1978 -- invalid -- large forest bat
  Eptesicus serotinus (Schreber, 1774) -- valid -- serotine, Common Serotine, Eurasian Serotine, Big Brown Bat, Silky Bat
  Eptesicus somalicus (Thomas, 1901) -- invalid -- Somali serotine
  Eptesicus tatei Ellerman and Morrison-Scott, 1951 -- valid -- Sombre Bat, Sombre Serotine
  Eptesicus tenuipinnis (Peters, 1872) -- invalid -- white-winged serotine
  Eptesicus vulturnus Thomas, 1914 -- invalid -- little forest bat
  Equidae Gray, 1821 -- valid -- Asses, Horses, Zebras
  Equus Linnaeus, 1758 -- valid -- Horses
  Equus asinus Linnaeus, 1758 -- valid -- burro, feral burro, Donkey, Wild Ass, Ass
  Equus burchellii (Gray, 1824) -- invalid -- Burchell's Zebra, Plains Zebra
  Equus caballus Linnaeus, 1758 -- valid -- feral horse, Horse
  Equus grevyi Oustalet, 1882 -- valid -- Grevy's Zebra, Grévy's Zebra
  Equus hemionus Pallas, 1775 -- valid -- Asiatic Wild Ass, Onager, Asian wild ass, Kulan
  Equus hemionus hemippus I. Geoffroy Saint-Hilaire, 1855 -- invalid
  Equus kiang Moorcroft, 1841 -- valid -- Tibetan Wild Ass, Kiang
  Equus onager Boddaert, 1785 -- invalid -- Onager
  Equus quagga Boddaert, 1785 -- valid -- Plains Zebra, Quagga
  Equus zebra Linnaeus, 1758 -- valid -- Zebra, Cape mountain zebra, Mountain Zebra
  Equus zebra hartmannae Matschie, 1898 -- invalid -- Hartmann Zebra, Hartmann's Mountain Zebra, Hartmann's Zebra
  Equus zebra zebra Linnaeus, 1758 -- invalid -- mountain zebra, Cape Mountain Zebra
  Eremiomys Poliakov, 1881 -- invalid
  Eremitalpa Roberts, 1924 -- valid
  Eremitalpa granti (Broom, 1907) -- valid -- Grant's Golden Mole
  Eremodipus Vinogradov, 1930 -- valid -- Desert Jerboas
  Eremodipus lichtensteini (Vinogradov, 1927) -- valid -- Lichtenstein's Jerboa
  Erethizon F. Cuvier, 1823 -- valid
  Erethizon dorsatum (Linnaeus, 1758) -- invalid -- porcupine, common porcupine, porc-épic d'Amérique, Puercoespín norteamericano
  Erethizontidae Bonaparte, 1845 -- valid -- New World porcupines
  Erignathus Gill, 1866 -- valid -- bearded seals
  Erignathus barbatus (Erxleben, 1777) -- valid -- Bearded Seal, squareflipper, ugruk, phoque barbu
  Erinaceidae G. Fischer, 1814 -- valid -- gymnures, hedgehogs
  Erinaceinae G. Fischer, 1814 -- valid -- spiny hedgehogs
  Erinaceus Linnaeus, 1758 -- valid
  Erinaceus amurensis Schrenk, 1859 -- valid -- Amur Hedgehog
  Erinaceus concolor Martin, 1838 -- valid -- Southern White-Breasted Hedgehog, eastern European hedgehog
  Erinaceus europaeus Linnaeus, 1758 -- valid -- West European Hedgehog, western European hedgehog
  Eropeplus Miller and Hollister, 1921 -- valid
  Eropeplus canus Miller and Hollister, 1921 -- valid -- Sulawesi Soft-furred Rat
  Erophylla Miller, 1906 -- valid -- brown flower bats
  Erophylla bombifrons (Miller, 1899) -- valid -- Brown Flower Bat
  Erophylla sezekorni (Gundlach, 1861) -- valid -- Buffy Flower Bat
  Erythrocebus Trouessart, 1897 -- valid -- Patas Monkey
  Erythrocebus patas (Schreber, 1774) -- valid -- Patas Monkey, Common Patas Monkey
  Eschrichtiidae Ellerman and Morrison-Scott, 1951 -- valid -- grey whales, gray whales
  Eschrichtius Gray, 1864 -- valid -- grey whales, gray whales
  Eschrichtius robustus (Lilljeborg, 1861) -- valid -- Gray Whale, Ballena gris, grey whale
  Eubalaena Gray, 1864 -- valid -- right whales
  Eubalaena australis (Desmoulins, 1822) -- valid -- Southern Right Whale
  Eubalaena glacialis (Müller, 1776) -- valid -- North Atlantic Right Whale, black right whale, baleine noire, Ballena franca, Northern Right Whale
  Eubalaena japonica (Lacépède, 1818) -- valid -- North Pacific Right Whale
  Euchoreutes Sclater, 1891 -- valid
  Euchoreutes naso Sclater, 1891 -- valid -- Long-eared Jerboa
  Euchoreutinae Lyon, 1901 -- valid
  Euderma H. Allen, 1892 -- valid -- spotted bats
  Euderma maculatum (J. A. Allen, 1891) -- valid -- Murciélago pinto, Spotted Bat, Pinto Bat
  Eudiscopus Conisbee, 1953 -- valid
  Eudiscopus denticulus (Osgood, 1932) -- valid -- Disk-footed Bat
  Eulemur Simons and Rumpler, 1988 -- valid -- true lemurs, brown lemurs
  Eulemur coronatus (Gray, 1842) -- valid -- Crowned Lemur
  Eulemur fulvus (É. Geoffroy Saint-Hilaire, 1796) -- valid -- Brown Lemur
  Eulemur macaco (Linnaeus, 1766) -- valid -- Black Lemur
  Eulemur mongoz (Linnaeus, 1766) -- valid -- Mongoose Lemur
  Eulemur rubriventer (I. Geoffroy Saint-Hilaire, 1850) -- valid -- Red-bellied Lemur
  Eumetopias Gill, 1866 -- valid -- northern sea lions
  Eumetopias jubatus (Schreber, 1776) -- valid -- Steller Sea Lion, Steller's sea lion, Northern Sea Lion
  Eumops Miller, 1906 -- valid -- mastiff-bats
  Eumops auripendulus (Shaw, 1800) -- valid -- Black Bonneted Bat
  Eumops bonariensis (Peters, 1874) -- valid -- Dwarf Bonneted Bat, Common Dwarf Bonneted Bat
  Eumops dabbenei Thomas, 1914 -- valid -- Big Bonneted Bat
  Eumops glaucinus (Wagner, 1843) -- valid -- Wagner's Mastiff-bat, Murciélago-con bonete de Wagner, Wagner's Bonneted Bat
  Eumops hansae Sanborn, 1932 -- valid -- Sanborn's Bonneted Bat
  Eumops maurus (Thomas, 1901) -- valid -- Guianan Bonneted Bat
  Eumops perotis (Schinz, 1821) -- valid -- Western Bonneted Bat, Western Mastiff-bat, Murciélago-con bonete mayor, Greater Bonneted Bat
  Eumops underwoodi Goodwin, 1940 -- valid -- Murciélago-con bonete de Underwood, Underwood's Mastiff-bat, Underwood's Bonneted Bat
  Eumysopinae Rusconi, 1935 -- invalid
  Euneomys Coues, 1874 -- valid -- Chinchilla Mice
  Euneomys chinchilloides (Waterhouse, 1839) -- valid -- Patagonian chinchilla mouse, Tierra del Fuego Euneomys
  Euneomys fossor (Thomas, 1899) -- valid -- Burrowing chinchilla mouse, Burrowing Euneomys
  Euneomys mordax Thomas, 1912 -- valid -- Biting Chinchilla Mouse, Large Euneomys
  Euneomys petersoni J. A. Allen, 1903 -- valid -- Peterson's chinchilla mouse, Peterson's Euneomys
  Euoticus Gray, 1863 -- valid -- needle-clawed galagos
  Euoticus elegantulus (LeConte, 1857) -- valid -- Western Needle-clawed Galago, Southern Needle-clawed Bushbaby, Southern Needle-clawed Galago
  Euoticus pallidus (Gray, 1863) -- valid -- Pallid Needle-clawed Galago, Northern Needle-clawed Galago, Northern Needle-clawed Bushbaby
  Eupetaurus Thomas, 1888 -- valid
  Eupetaurus cinereus Thomas, 1888 -- valid -- Woolly Flying Squirrel
  Euphractus Wagler, 1830 -- valid -- six-banded armadillos
  Euphractus sexcinctus (Linnaeus, 1758) -- valid -- Six-banded Armadillo
  Eupleres Doyère, 1835 -- valid
  Eupleres goudotii Doyère, 1835 -- valid -- Falanouc
  Euplerinae Chenu, 1850 -- valid -- civet-like Madagascar carnivores
  Euroscaptor G. S. Miller, 1940 -- valid
  Euroscaptor grandis G. S. Miller, 1940 -- valid -- Greater Chinese Mole
  Euroscaptor klossi (Thomas, 1929) -- valid -- Kloss's Mole
  Euroscaptor longirostris (A. Milne-Edwards, 1870) -- valid -- Long-nosed Mole
  Euroscaptor micrura (Hodgson, 1841) -- invalid -- Himalayan Mole
  Euroscaptor mizura (Günther, 1880) -- invalid -- Japanese Mountain Mole
  Euroscaptor parvidens (G. S. Miller, 1940) -- valid -- Small-toothed Mole
  Euryzygomatomys Goeldi, 1901 -- valid
  Euryzygomatomys spinosus (Fischer de Waldheim, 1814) -- valid -- Guiara
  Eutamias Trouessart, 1880 -- invalid
  Eutamias minimus (Bachman, 1839) -- invalid
  Exilisciurus Moore, 1958 -- valid -- Pygmy Squirrels
  Exilisciurus concinnus (Thomas, 1888) -- valid -- Philippine Pygmy Squirrel
  Exilisciurus exilis (Müller, 1838) -- valid -- Least Pygmy Squirrel
  Exilisciurus whiteheadi (Thomas, 1887) -- valid -- Tufted Pygmy Squirrel
  Felidae Fischer de Waldheim, 1817 -- valid -- cats
  Feliformia Kretzoi, 1945 -- valid -- cat-like carnivores
  Felinae Fischer de Waldheim, 1817 -- valid
  Felis Linnaeus, 1758 -- valid -- small cats
  Felis albescens Pucheran, 1855 -- invalid
  Felis apache Mearns, 1901 -- invalid
  Felis aztecus browni Merriam, 1903 -- invalid
  Felis bangsi costaricensis Merriam, 1901 -- invalid
  Felis bengalensis Kerr, 1792 -- invalid -- leopard cat
  Felis bieti A. Milne-Edwards, 1892 -- valid -- Chinese Mountain Cat, Chinese desert cat, Chinese steppe cat, Gato de Biet, gato desierto de China
  Felis cacomitli Berlandier, 1859 -- invalid
  Felis californica May, 1896 -- invalid
  Felis canescens Swainson, 1838 -- invalid
  Felis caracal Schreber, 1776 -- invalid
  Felis catus Linnaeus, 1758 -- valid -- Domestic Cat
  Felis chaus Schreber, 1777 -- valid -- Jungle Cat, Swamp Cat, chat de marais, chat de jungle, gato de la jungla, gato de los pantanos
  Felis concolor Linnaeus, 1771 -- invalid -- mountain lion
  Felis concolor coryi Bangs, 1899 -- invalid -- Florida panther
  Felis concolor costaricensis Merriam, 1901 -- invalid
  Felis concolor cougar Kerr, 1792 -- invalid
  Felis concolor couguar Kerr, 1792 -- invalid -- eastern cougar, couguar
  Felis couguar Kerr, 1792 -- invalid
  Felis fossata Mearns, 1901 -- invalid
  Felis geoffroyi d'Orbigny and Gervais, 1844 -- invalid -- Geoffroy's cat
  Felis glaucula Thomas, 1903 -- invalid
  Felis glaucula yucatanica Nelson and Goldman, 1931 -- invalid -- Yucatan Long-tailed Tiger Cat
  Felis griffithii J. B. Fischer, 1829 -- invalid
  Felis hippolestes Merriam, 1897 -- invalid
  Felis hippolestes aztecus Merriam, 1901 -- invalid
  Felis improcera Phillips, 1912 -- invalid
  Felis jacobita Cornalia, 1865 -- invalid
  Felis limitis Mearns, 1902 -- invalid
  Felis lybica Forster, 1780 -- valid -- African Wildcat, Indian Desert Cat, chat ganté, chat sauvage d'Afrique, chat sauvage d'Asie, Gato silvestre, gato montés
  Felis manul Pallas, 1776 -- invalid -- Pallas's Cat, steppe cat, Pallas' cat
  Felis margarita Loche, 1858 -- valid -- Sand Cat, Chat des sables, gato del Sahara, gato de las arenas
  Felis margarita scheffeli Hemmer, 1974 -- invalid
  Felis mearnsi J. A. Allen, 1904 -- invalid
  Felis mexicana Kerr, 1792 -- invalid
  Felis minuta Temminck, 1824 -- invalid -- Philippine cat
  Felis nigripes Burchell, 1824 -- valid -- Black-footed Cat, Chat à pieds noirs, Gato patinegro, gato de pies negros
  Felis ocelot Link, 1795 -- invalid
  Felis onca Linnaeus, 1758 -- invalid
  Felis oregonensis Rafinesque, 1832 -- invalid
  Felis pajeros Desmarest, 1816 -- invalid -- Pampas cat
  Felis panamensis J. A. Allen, 1904 -- invalid
  Felis pardalis Linnaeus, 1758 -- invalid -- ocelot
  Felis pirrensis Goldman, 1914 -- invalid
  Felis pseudopardalis Boitard, 1842 -- invalid
  Felis rubiginosa I. Geoffroy Saint-Hilaire, 1831 -- invalid -- rusty-spotted cat
  Felis rufus Schreber, 1777 -- invalid
  Felis rufus rufus Schreber, 1777 -- invalid
  Felis serval Schreber, 1776 -- invalid -- serval
  Felis silvestris Schreber, 1777 -- valid -- Wildcat, European wildcat, Caucasian wildcat, Chat forestier, chat sylvestre, chat sauvage d'Europe, gato silvestre, Gato montés
  Felis viverrina Bennett, 1833 -- invalid -- fishing cat
  Felis wiedii Schinz, 1821 -- invalid -- margay
  Felis wiedii yucatanica Nelson and Goldman, 1931 -- invalid
  Felis yagouaroundi cacomitli Berlandier, 1859 -- invalid -- jaguarundi
  Felis yagouaroundi yagouaroundi É. Geoffroy Saint-Hilaire, 1803 -- invalid
  Felis yaguarondi Lacépède, 1809 -- invalid -- jaguarundi
  Felovia Lataste, 1886 -- valid
  Felovia vae (Lataste, 1886) -- valid -- Felou Gundi, Senegal Gundi
  Feresa Gray, 1870 -- valid -- pygmy killer whales
  Feresa attenuata Gray, 1874 -- valid -- Pygmy Killer Whale, Orca pigmea
  Feroculus Kelaart, 1852 -- valid
  Feroculus feroculus (Kelaart, 1850) -- valid -- Kelaart's Long-clawed Shrew
  Fossa Gray, 1865 -- valid
  Fossa fossana (Müller, 1776) -- valid -- Malagasy Civet, Spotted Fanaloka
  Funambulus Lesson, 1835 -- valid -- Asiatic Palm Squirrels
  Funambulus layardi (Blyth, 1849) -- valid -- Layard's Palm Squirrel
  Funambulus palmarum (Linnaeus, 1766) -- valid -- Indian Palm Squirrel
  Funambulus pennantii Wroughton, 1905 -- valid -- Northern Palm Squirrel
  Funambulus sublineatus (Waterhouse, 1838) -- valid -- Dusky Palm Squirrel
  Funambulus tristriatus (Waterhouse, 1837) -- valid -- Jungle Palm Squirrel, jungle striped squirrel, western ghats squirrel
  Funisciurus Trouessart, 1880 -- valid -- Rope Squirrels
  Funisciurus anerythrus (Thomas, 1890) -- valid -- Thomas's Rope Squirrel
  Funisciurus bayonii (Bocage, 1890) -- valid -- Lunda Rope Squirrel
  Funisciurus carruthersi Thomas, 1906 -- valid -- Carruther's Mountain Squirrel
  Funisciurus congicus (Kuhl, 1820) -- valid -- Congo Rope Squirrel
  Funisciurus isabella (Gray, 1862) -- valid -- Lady Burton's Rope Squirrel
  Funisciurus lemniscatus (Le Conte, 1857) -- valid -- Ribboned Rope Squirrel
  Funisciurus leucogenys (Waterhouse, 1842) -- valid -- Red-cheeked Rope Squirrel
  Funisciurus pyrropus (F. Cuvier, 1833) -- valid -- Fire-footed Rope Squirrel
  Funisciurus substriatus de Winton, 1899 -- valid -- Kintampo Rope Squirrel
  Furipteridae Gray, 1866 -- valid -- Smoky Bat, Thumbless Bat
  Furipterus Bonaparte, 1837 -- valid -- Thumbless Bat
  Furipterus horrens (F. Cuvier, 1828) -- valid -- Thumbless Bat
  Galago É. Geoffroy Saint-Hilaire, 1796 -- valid -- lesser galagos
  Galago alleni Waterhouse, 1838 -- invalid -- Allen's Squirrel Galago, Bioko Allen's Bushbaby
  Galago gallarum Thomas, 1901 -- valid -- Somali Bushbaby, Somali Lesser Galago
  Galago matschiei Lorenz, 1917 -- valid -- Spectacled Lesser Galago, Dusky Bushbaby
  Galago moholi A. Smith, 1836 -- valid -- South African Galago, Moholi Bushbaby, Southern Lesser Galago
  Galago senegalensis É. Geoffroy Saint-Hilaire, 1796 -- valid -- Senegal Galago, Northern Lesser Galago, Senegal Bushbaby
  Galagoides A. Smith, 1833 -- valid -- dwarf galagos
  Galagoides demidoff (G. Fischer, 1806) -- valid -- Demidoff's Dwarf Galago, Prince Demidoff's Bushbaby
  Galagoides zanzibaricus (Matschie, 1893) -- invalid -- Zanzibar Galago, Tanzania Coast Dwarf Galago
  Galagonidae Gray, 1825 -- invalid
  Galea Meyen, 1832 -- valid
  Galea flavidens (Brandt, 1835) -- valid -- Brazilian Yellow-toothed Cavy, Eastern Yellow-toothed Cavy
  Galea musteloides Meyen, 1833 -- valid -- Common Yellow-toothed Cavy, Highland Yellow-toothed Cavy
  Galea spixii (Wagler, 1831) -- valid -- Spix's Yellow-toothed Cavy
  Galemys Kaup, 1829 -- valid
  Galemys pyrenaicus (É. Geoffroy Saint-Hilaire, 1811) -- valid -- Pyrenean Desman
  Galenomys Thomas, 1916 -- valid
  Galenomys garleppi (Thomas, 1898) -- valid -- Garlepp's Mouse, Garlepp's Pericote
  Galerella Gray, 1865 -- valid
  Galerella flavescens (Bocage, 1889) -- valid -- black slender mongoose, Angolan Slender Mongoose, Kaokoveld Slender Mongoose
  Galerella pulverulenta (Wagner, 1839) -- valid -- Cape Gray Mongoose
  Galerella sanguinea (Rüppell, 1835) -- valid -- Slender Mongoose, Common Slender Mongoose
  Galerella swalius (Thomas, 1926) -- invalid -- Namaqua slender mongoose
  Galictis Bell, 1826 -- valid -- grisons
  Galictis cuja (Molina, 1782) -- valid -- Lesser Grison
  Galictis vittata (Schreber, 1776) -- valid -- Greater Grison
  Galidia I. Geoffroy Saint-Hilaire, 1837 -- valid
  Galidia elegans I. Geoffroy Saint-Hilaire, 1837 -- valid -- Ring-tailed Mongoose, Ring-tailed Vontsira
  Galidictis I. Geoffroy Saint-Hilaire, 1839 -- valid
  Galidictis fasciata (Gmelin, 1788) -- valid -- Broad-striped Malagasy Mongoose, Broad-striped Vontsira
  Galidictis grandidieri Wozencraft, 1986 -- invalid -- giant-striped mongoose, Grandidier's Mongoose, Grandidier's Vontsira
  Galidiinae Gray, 1865 -- valid -- mongoose-like Madagascar carnivores
  Gazella Blainville, 1816 -- valid -- gazelles
  Gazella arabica (Lichtenstein, 1827) -- valid -- Arabian Gazelle, Arabian gazelle
  Gazella bennettii (Sykes, 1831) -- valid -- Indian gazelle, Indian Gazelle
  Gazella bilkis Groves and Lay, 1985 -- invalid -- Queen of Sheba's gazelle
  Gazella cuvieri (Ogilby, 1841) -- valid -- Cuvier's gazelle, mountain gazelle, Cuvier's Gazelle, Cuviers gazelle
  Gazella dama (Pallas, 1766) -- invalid -- dama gazelle
  Gazella dorcas (Linnaeus, 1758) -- valid -- Dorcas gazelle, Dorcas Gazelle
  Gazella gazella (Pallas, 1766) -- valid -- Mountain Gazelle, Arabian gazelle, mountain gazelle
  Gazella granti Brooke, 1872 -- invalid -- Grant's gazelle
  Gazella leptoceros (F. Cuvier, 1842) -- valid -- rhim gazelle, slender-horned gazelle, Slender-horned Gazelle
  Gazella rufifrons Gray, 1846 -- invalid -- red-fronted gazelle
  Gazella rufina Thomas, 1894 -- invalid -- red gazelle
  Gazella saudiya Carruthers and Schwarz, 1935 -- valid -- Saudi Arabian gazelle, Saudi gazelle, Saudi Gazelle
  Gazella soemmerringii (Cretzschmar, 1828) -- invalid -- Sömmerring's gazelle
  Gazella spekei Blyth, 1863 -- valid -- Speke's gazelle, Speke's Gazelle
  Gazella subgutturosa (Güldenstaedt, 1780) -- valid -- Goitered Gazelle, goitered gazelle
  Gazella thomsonii Günther, 1884 -- invalid -- Thomson's gazelle
  Genetta G. Cuvier, 1816 -- valid
  Genetta abyssinica (Rüppell, 1836) -- valid -- Abyssinian Genet
  Genetta angolensis Bocage, 1882 -- valid -- Angolan Genet
  Genetta genetta (Linnaeus, 1758) -- valid -- small-spotted genet, Common Genet
  Genetta johnstoni Pocock, 1908 -- valid -- Johnston's Genet
  Genetta maculata (Gray, 1830) -- invalid -- panther genet, Rusty-spotted Genet
  Genetta servalina Pucheran, 1855 -- valid -- Servaline Genet
  Genetta thierryi Matschie, 1902 -- valid -- Haussa Genet, Hausa Genet
  Genetta tigrina (Schreber, 1776) -- valid -- large-spotted genet, Cape Genet
  Genetta victoriae Thomas, 1901 -- valid -- Giant Genet, Giant Forest Genet
  Geocapromys Chapman, 1901 -- valid
  Geocapromys brownii (J. Fischer, 1830) -- valid -- Jamaician Hutia
  Geocapromys ingrahami (J. A. Allen, 1891) -- valid -- Bahamian Hutia, Ingraham's Hutia
  Geocapromys thoracatus (True, 1889) -- valid -- Swan Island Hutia
  Geogale A. Milne-Edwards and A. Grandidier, 1872 -- valid
  Geogale aurita A. Milne-Edwards and A. Grandidier, 1872 -- valid -- Large-eared Tenrec
  Geogale aurita aurita A. Milne-Edwards and A. Grandidier, 1872 -- invalid
  Geogale aurita orientalis G. Grandidier and Petit, 1930 -- invalid
  Geogalinae Trouessart, 1881 -- valid -- large-eared tenrec
  Geomyidae Bonaparte, 1845 -- valid -- Pocket Gophers
  Geomys Rafinesque, 1817 -- valid -- Eastern Pocket Gophers
  Geomys arenarius Merriam, 1895 -- valid -- Tuza arenera, Desert Pocket Gopher
  Geomys attwateri Merriam, 1895 -- valid -- Attwater's Pocket Gopher
  Geomys breviceps Baird, 1855 -- valid -- Mer Rouge pocket gopher, Baird's Pocket Gopher
  Geomys bursarius (Shaw, 1800) -- valid -- Plains Pocket Gopher
  Geomys knoxjonesi Baker and Genoways, 1975 -- valid -- Knox Jones's Pocket Gopher, Jones's Pocket Gopher, Jones' pocket gopher
  Geomys personatus True, 1889 -- valid -- Tuza texana, Texas Pocket Gopher
  Geomys pinetis Rafinesque, 1817 -- valid -- Southeastern Pocket Gopher
  Geomys texensis Merriam, 1895 -- valid -- Central Texas Pocket Gopher, Llano Pocket Gopher
  Geomys tropicalis Goldman, 1915 -- valid -- Tropical Pocket Gopher
  Georychus Illiger, 1811 -- valid
  Georychus capensis (Pallas, 1778) -- valid -- Cape Mole-rat, Cape Blesmol
  Geoxus Thomas, 1919 -- valid
  Geoxus valdivianus (Philippi, 1858) -- valid -- Long-clawed Mole mouse, Valdivian Long-clawed Akodont
  Gerbillinae Gray, 1825 -- valid
  Gerbillurus Shortridge, 1942 -- valid -- Hairy-footed Gerbils
  Gerbillurus paeba (A. Smith, 1836) -- valid -- Hairy-footed Gerbil, Paeba Hairy-footed Gerbil
  Gerbillurus setzeri (Schlitter, 1973) -- valid -- Setzer's Hairy-footed Gerbil
  Gerbillurus tytonis (Bauer and Niethammer, 1960) -- valid -- Dune Hairy-footed Gerbil
  Gerbillurus vallinus (Thomas, 1918) -- valid -- Bushy-tailed Hairy-footed Gerbil, Brush-tailed Hairy-footed Gerbil
  Gerbillus Desmarest, 1804 -- valid -- Gerbils
  Gerbillus acticola Thomas, 1918 -- valid -- Berbera Gerbil
  Gerbillus agag Thomas, 1903 -- valid -- Agag Gerbil
  Gerbillus allenbyi Thomas, 1918 -- invalid -- Allenby's gerbil
  Gerbillus amoenus (de Winton, 1902) -- valid -- Pleasant Gerbil
  Gerbillus andersoni de Winton, 1902 -- valid -- Anderson's Gerbil
  Gerbillus aquilus Schlitter and Setzer, 1972 -- valid -- Swarthy Gerbil
  Gerbillus bilensis Frick, 1914 -- invalid -- Bilen Gerbil
  Gerbillus bonhotei Thomas, 1919 -- invalid -- Bonhote's gerbil
  Gerbillus bottai Lataste, 1882 -- invalid -- Botta's Gerbil
  Gerbillus brockmani (Thomas, 1910) -- valid -- Brockman's Gerbil
  Gerbillus burtoni F. Cuvier, 1838 -- valid -- Burton's Gerbil
  Gerbillus campestris (Loche, 1867) -- invalid -- North African Gerbil
  Gerbillus cheesmani Thomas, 1919 -- valid -- Cheesman's Gerbil
  Gerbillus cosensi Dollman, 1914 -- invalid -- Cosens's gerbil
  Gerbillus dalloni Heim de Balsac, 1936 -- invalid -- Dallon's Gerbil
  Gerbillus dasyurus (Wagner, 1842) -- invalid -- Wagner's Gerbil
  Gerbillus diminutus Dollman, 1911 -- invalid -- Diminutive Gerbil
  Gerbillus dongolanus (Heuglin, 1877) -- valid -- Dongola Gerbil
  Gerbillus dunni Thomas, 1904 -- valid -- Somalia Gerbil, Dunn's Gerbil
  Gerbillus famulus Yerbury and Thomas, 1895 -- valid -- Black-tufted Gerbil
  Gerbillus floweri Thomas, 1919 -- valid -- Flower's Gerbil
  Gerbillus garamantis Lataste, 1881 -- valid -- Algerian Gerbil
  Gerbillus gerbillus (Olivier, 1800) -- valid -- Lesser Egyptian Gerbil
  Gerbillus gleadowi Murray, 1886 -- valid -- Indian Hairy-footed Gerbil
  Gerbillus grobbeni Klaptocz, 1909 -- valid -- Grobben's Gerbil
  Gerbillus harwoodi Thomas, 1901 -- invalid -- Harwood's Gerbil
  Gerbillus henleyi (de Winton, 1903) -- valid -- Pygmy Gerbil
  Gerbillus hesperinus Cabrera, 1936 -- valid -- Western Gerbil, Moroccan Gerbil
  Gerbillus hoogstraali Lay, 1975 -- valid -- Hoogstraal's Gerbil
  Gerbillus jamesi Harrison, 1967 -- invalid -- James's Gerbil
  Gerbillus juliani (St. Leger, 1935) -- invalid -- Julian's gerbil
  Gerbillus latastei Thomas and Trouessart, 1903 -- valid -- Lataste's Gerbil
  Gerbillus lowei (Thomas and Hinton, 1923) -- invalid -- Lowe's Gerbil
  Gerbillus mackillingini (Thomas, 1904) -- invalid -- Mackillingin's gerbil
  Gerbillus maghrebi Schlitter and Setzer, 1972 -- invalid -- Greater Short-tailed Gerbil
  Gerbillus mauritaniae (Heim de Balsac, 1943) -- valid -- Mauritanian Gerbil
  Gerbillus mesopotamiae Harrison, 1956 -- valid -- Mesopotamian Gerbil
  Gerbillus muriculus (Thomas and Hinton, 1923) -- valid -- Barfur gerbil, Darfur Gerbil
  Gerbillus nancillus Thomas and Hinton, 1923 -- valid -- Sudan Gerbil
  Gerbillus nanus Blanford, 1875 -- valid -- Baluchistan Gerbil
  Gerbillus nigeriae Thomas and Hinton, 1920 -- valid -- Nigerian Gerbil
  Gerbillus occiduus Lay, 1975 -- valid -- Occidental Gerbil
  Gerbillus percivali Dollman, 1914 -- invalid -- Percival's gerbil
  Gerbillus perpallidus Setzer, 1958 -- valid -- Pale Gerbil
  Gerbillus poecilops Yerbury and Thomas, 1895 -- valid -- Large Aden Gerbil
  Gerbillus principulus (Thomas and Hinton, 1923) -- valid -- Principal Gerbil
  Gerbillus pulvinatus Rhoads, 1896 -- valid -- Cushioned Gerbil, Rhoads's Gerbil
  Gerbillus pusillus Peters, 1878 -- valid -- Least Gerbil
  Gerbillus pyramidum (É. Geoffroy, 1803) -- valid -- Greater Egyptian Gerbil
  Gerbillus quadrimaculatus Lataste, 1882 -- invalid -- Four-spotted Gerbil
  Gerbillus riggenbachi Thomas, 1903 -- invalid -- Riggenbach's gerbil
  Gerbillus rosalinda St. Leger, 1929 -- valid -- Rosalinda Gerbil
  Gerbillus ruberrimus Rhoads, 1896 -- invalid -- Little Red Gerbil
  Gerbillus simoni Lataste, 1881 -- invalid -- Lesser Short-tailed Gerbil
  Gerbillus somalicus (Thomas, 1910) -- invalid -- Somalian Gerbil
  Gerbillus stigmonyx Heuglin, 1877 -- invalid -- Khartoum Gerbil
  Gerbillus syrticus Misonne, 1974 -- valid -- Sand Gerbil
  Gerbillus tarabuli Thomas, 1902 -- valid -- Tarabul's Gerbil
  Gerbillus vivax (Thomas, 1902) -- valid -- Vivacious Gerbil
  Gerbillus watersi de Winton, 1901 -- valid -- Waters's Gerbil
  Giraffa Brünnich, 1771 -- invalid
  Giraffa camelopardalis (Linnaeus, 1758) -- valid -- Giraffe, Northern Giraffe
  Giraffidae Gray, 1821 -- valid -- giraffes
  Glaucomys Thomas, 1908 -- valid -- American flying squirrels, New World Flying Squirrels
  Glaucomys sabrinus (Shaw, 1801) -- valid -- grand polatouche, Northern Flying Squirrel
  Glaucomys sabrinus coloratus Handley, 1953 -- valid -- Carolina northern flying squirrel
  Glaucomys sabrinus fuscus Miller, 1936 -- valid -- Virginia flying squirrel, Virginia northern flying squirrel
  Glaucomys volans (Linnaeus, 1758) -- valid -- petit polatouche, Ardilla-voladora del sur, Southern Flying Squirrel
  Glaucomys volans goldmani (Nelson, 1904) -- valid
  Glaucomys volans oaxacensis Goodwin, 1961 -- valid
  Glaucomys volans volans (Linnaeus, 1758) -- valid -- small eastern flying squirrel
  Glauconycteris gleni Peterson and Smith, 1973 -- valid -- Glen's Butterfly Bat, Glen's wattled bat
  Glauconycteris kenyacola Peterson, 1982 -- valid -- Kenyan Butterfly Bat, Kenyacola Butterfly Bat, Kenyan wattled bat
  Glironia Thomas, 1912 -- valid
  Glironia venusta Thomas, 1912 -- valid -- Bushy-tailed Opossum
  Glirulus Thomas, 1906 -- valid
  Glirulus japonicus (Schinz, 1845) -- valid -- Japanese Dormouse
  Glischropus Dobson, 1875 -- valid
  Glischropus javanus Chasen, 1939 -- valid -- Javan Thick-thumbed Bat
  Glischropus tylopus (Dobson, 1875) -- valid -- Common Thick-thumbed Bat
  Globicephala Lesson, 1828 -- valid -- pilot whales
  Globicephala macrorhynchus Gray, 1846 -- valid -- Short-finned Pilot Whale
  Globicephala melaena (Traill, 1809) -- invalid -- long-finned pilot whale
  Globicephala melas (Traill, 1809) -- valid -- globicéphale noir de l'Atlantique, Long-finned Pilot Whale
  Globicephala sieboldii Gray, 1846 -- invalid
  Glossophaga E. Geoffroy, 1818 -- valid -- long-tongued bats
  Glossophaga commissarisi Gardner, 1962 -- valid -- Commissaris's Long-tongued Bat
  Glossophaga leachii (Gray, 1844) -- valid -- Gray Long-tongued Bat, Gray's Long-tongued Bat
  Glossophaga longirostris Miller, 1898 -- valid -- Miller's Long-tongued Bat
  Glossophaga morenoi Martínez and Villa-R., 1938 -- valid -- Western Long-tongued Bat
  Glossophaga soricina (Pallas, 1766) -- valid -- Pallas's Long-tongued Bat
  Glossophaginae Bonaparte, 1845 -- valid
  Glyphonycteris sylvestris Thomas, 1896 -- valid -- Tricolored Big-eared Bat, Tri-colored Big-eared Bat, Tricolored Bat
  Glyphotes Thomas, 1898 -- valid
  Glyphotes simus Thomas, 1898 -- valid -- Sculptor Squirrel
  Golunda Gray, 1837 -- valid
  Golunda ellioti Gray, 1837 -- valid -- Indian Bush Rat
  Gorilla I. Geoffroy Saint-Hilaire, 1852 -- valid -- gorillas
  Gorilla gorilla (Savage and Wyman, 1847) -- valid -- gorilla, Western Gorilla
  Gracilinanus Gardner and Creighton, 1989 -- valid
  Gracilinanus aceramarcae (Tate, 1931) -- valid -- Aceramarca Gracile Opossum, Aceramarca Opossum
  Gracilinanus agilis (Burmeister, 1854) -- valid -- Agile Opossum, Agile Gracile Opossum, Paraguayan Slender Mouse Opossum
  Gracilinanus dryas (Thomas, 1898) -- valid -- Wood Sprite Gracile Opossum, Wood Sprite Opossum
  Gracilinanus emiliae (Thomas, 1909) -- valid -- Long-tailed Gracile Mouse Opossum, Emilia's Gracile Opossum, Emilia's Opossum
  Gracilinanus marica (Thomas, 1898) -- valid -- Northern Gracile Opossum
  Gracilinanus microtarsus (Wagner, 1842) -- valid -- Brazilian Gracile Opossum
  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 caniceps Hutterer and Dieterlen, 1984 -- valid -- Gray-headed Grammomys
  Grammomys cometes (Thomas and Wroughton, 1908) -- valid -- Mozambique Grammomys
  Grammomys dolichurus (Smuts, 1832) -- valid -- Common Grammomys
  Grammomys dryas (Thomas, 1907) -- valid -- Albertine Rift Grammomys
  Grammomys gigas (Dollman, 1911) -- valid -- Mount Kenya Grammomys
  Grammomys ibeanus (Osgood, 1910) -- valid -- East African Grammomys
  Grammomys macmillani (Wroughton, 1907) -- valid -- Macmillan's Grammomys
  Grammomys minnae Hutterer and Dieterlen, 1984 -- valid -- Ethiopian Grammomys
  Grammomys rutilans (Peters, 1876) -- invalid
  Grampus Gray, 1828 -- valid -- grampus
  Grampus griseus (G. Cuvier, 1812) -- valid -- Risso's Dolphin, grampus, Delfín chato, gray grampus
  Graomys Thomas, 1916 -- valid -- Leaf-eared Mice
  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 griseoflavus (Waterhouse, 1837) -- valid -- Gray Leaf-eared Mouse, Common Pericote
  Graphiurinae Winge, 1887 -- valid
  Graphiurus Smuts, 1832 -- valid -- African Dormice
  Graphiurus christyi Dollman, 1914 -- valid -- Christy's Dormouse, Christy's African Dormouse
  Graphiurus crassicaudatus (Jentink, 1888) -- valid -- Thick-tailed African Dormouse, Jentink's Dormouse
  Graphiurus hueti Rochebrune, 1883 -- invalid -- Huet's Dormouse
  Graphiurus kelleni (Reuvens, 1890) -- valid -- Kellen's Dormouse, Savanna Dormouse, Kellen's African Dormouse
  Graphiurus lorraineus Dollman, 1910 -- valid -- Lorraine's African Dormouse, Lorrain Dormouse
  Graphiurus microtis (Noack, 1887) -- valid -- Small-eared Dormouse, Large Savanna African Dormouse
  Graphiurus monardi (St. Leger, 1936) -- valid -- Monard's Dormouse, Monard's African Dormouse
  Graphiurus murinus (Desmarest, 1822) -- valid -- Woodland Dormouse, Forest African Dormouse, Common African Dormouse
  Graphiurus ocularis (Smith, 1829) -- valid -- Spectacled Dormouse, Spectacled African Dormouse
  Graphiurus olga (Thomas, 1925) -- invalid -- Olga's Dormouse
  Graphiurus parvus (True, 1893) -- invalid -- Savanna Dormouse
  Graphiurus platyops Thomas, 1897 -- valid -- Rock Dormouse, Flat-headed African Dormouse
  Graphiurus rupicola (Thomas and Hinton, 1925) -- valid -- Stone Dormouse, Rupicolous African Dormouse
  Graphiurus surdus Dollman, 1912 -- valid -- Silent Dormouse, Short-eared African Dormouse
  Gulo Pallas, 1780 -- valid -- wolverines
  Gulo gulo (Linnaeus, 1758) -- valid -- Wolverine, carcajou
  Gulo gulo gulo (Linnaeus, 1758) -- valid
  Gulo gulo luscus (Linnaeus, 1758) -- valid
  Gymnobelideus McCoy, 1867 -- valid
  Gymnobelideus leadbeateri McCoy, 1867 -- valid -- Leadebeater's Possum, Leadbeater's Possum
  Gymnuromys Forsyth Major, 1896 -- valid
  Gymnuromys roberti Forsyth Major, 1896 -- valid -- Voalavoanala
  Habromys Hooper and Musser, 1964 -- valid -- Crested-tailed Deer Mice
  Habromys chinanteco (Robertson and Musser, 1976) -- valid -- Chinanteco deer mouse, Chinanteco Deermouse
  Habromys lepturus (Merriam, 1898) -- valid -- Zempoaltepec Deermouse, Slender-tailed Deer Mouse
  Habromys lophurus (Osgood, 1904) -- valid -- Crested-tailed Deer Mouse, Crested-tailed Deermouse
  Habromys simulatus (Osgood, 1904) -- valid -- Jico deer mouse, Jico Deermouse
  Hadromys Thomas, 1911 -- valid
  Hadromys humei (Thomas, 1886) -- valid -- Hume's Hadromys, Hume's Rat
  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
  Halichoerus Nilsson, 1820 -- valid -- gray seals
  Halichoerus grypus (Fabricius, 1791) -- valid -- Gray Seal, Atlantic gray seal, Atlantic seal, Baltic gray seal, horsehead, phoque gris
  Hamadryas Lesson, 1840 -- invalid
  Hapalemur I. Geoffroy Saint-Hilaire, 1851 -- valid -- bamboo lemurs
  Hapalemur aureus Meier, Albignac, Peyriéras, Rumpler and Wright, 1987 -- valid -- Golden Bamboo Lemur
  Hapalemur griseus (Link, 1795) -- valid -- Gray Bamboo Lemur
  Hapalemur simus Gray, 1870 -- invalid
  Hapalomys Blyth, 1859 -- valid -- Marmoset Rats
  Hapalomys delacouri Thomas, 1927 -- valid -- Lesser Marmoset Rat
  Hapalomys longicaudatus Blyth, 1859 -- valid -- Greater Marmoset Rat, Marmoset Mouse
  Haplodon leporinus californicus Peters, 1864 -- invalid
  Haplonycteris Lawrence, 1939 -- valid
  Haplonycteris fischeri Lawrence, 1939 -- valid -- Philippine Pygmy Fruit Bat, Fischer's Pygmy Fruit Bat
  Harpiocephalus Gray, 1842 -- valid
  Harpiocephalus harpia (Temminck, 1840) -- valid -- Hairy-winged Bat, Lesser Hairy-winged Bat
  Harpyionycteris Thomas, 1896 -- valid
  Harpyionycteris celebensis Miller and Hollister, 1921 -- valid -- Sulawesi Harpy Fruit Bat
  Harpyionycteris whiteheadi Thomas, 1896 -- valid -- Harpy Fruit Bat, Philippine Harpy Fruit Bat
  Heimyscus Misonne, 1969 -- valid
  Heimyscus fumosus (Brosset, Dubost and Heim de Balsac, 1965) -- valid -- Smokey Heimyscus
  Helamis G. Cuvier, 1821 -- invalid
  Helamys F. Cuvier in G. Cuvier, 1817 -- invalid
  Helarctos Horsfield, 1825 -- valid -- Sun bear
  Helarctos malayanus (Raffles, 1822) -- valid -- Sun bear, Malayan Sun Bear
  Heliophobius Peters, 1846 -- valid
  Heliophobius argenteocinereus Peters, 1846 -- valid -- Silvery Mole-rat, Silky Mole-rat
  Heliosciurus Trouessart, 1880 -- valid -- Sun Squirrels
  Heliosciurus gambianus (Ogilby, 1835) -- valid -- Gambian Sun Squirrel
  Heliosciurus mutabilis (Peters, 1852) -- valid -- Mutable Sun Squirrel
  Heliosciurus punctatus (Temminck, 1853) -- valid -- Small Sun Squirrel
  Heliosciurus rufobrachium (Waterhouse, 1842) -- valid -- Red-legged Sun Squirrel
  Heliosciurus ruwenzorii (Schwann, 1904) -- valid -- Ruwenzori Sun Squirrel
  Heliosciurus undulatus (True, 1892) -- valid -- Zanj Sun Squirrel
  Helogale Gray, 1862 -- valid
  Helogale hirtula Thomas, 1904 -- valid -- desert dwarf mongoose, Ethiopian Dwarf Mongoose
  Helogale parvula (Sundevall, 1847) -- valid -- dwarf mongoose, Common Dwarf Mongoose
  Hemibelideus Collett, 1884 -- valid
  Hemibelideus lemuroides (Collett, 1884) -- valid -- Lemur-like Ringtail, Lemuroid Ring-tailed Possum
  Hemicentetes Mivart, 1871 -- valid
  Hemicentetes semispinosus (G. Cuvier, 1798) -- valid -- Lowland Streaked Tenrec, streaked tenrec
  Hemiechinus Fitzinger, 1866 -- valid
  Hemiechinus aethiopicus (Ehrenberg, 1832) -- invalid -- desert hedgehog
  Hemiechinus auritus (Gmelin, 1770) -- valid -- Common Long-eared Hedgehog, Long-eared Hedgehog
  Hemiechinus collaris (Gray, 1830) -- valid -- Indian Long-eared Hedgehog
  Hemiechinus hypomelas (Brandt, 1836) -- invalid -- Brandt's hedgehog
  Hemiechinus micropus (Blyth, 1846) -- invalid -- Indian hedgehog
  Hemiechinus nudiventris (Horsfield, 1851) -- invalid -- bare-bellied hedgehog
  Hemigalinae Gray, 1865 -- valid -- palm civets, Otter Civet
  Hemigalus Jourdan, 1837 -- valid
  Hemigalus derbyanus (Gray, 1837) -- valid -- Banded Palm Civet
  Hemitragus Hodgson, 1841 -- valid
  Hemitragus hylocrius (Ogilby, 1838) -- valid -- Nilgiri tahr, Nilgiri Tahr
  Hemitragus jayakari Thomas, 1894 -- valid -- Arabian Tahr, Arabian tahr
  Hemitragus jemlahicus (C. H. Smith, 1826) -- valid -- Himalayan tahr, Himalayan Tahr
  Heptaxodontidae Anthony, 1917 -- valid
  Heptaxodontinae Anthony, 1917 -- valid
  Herpailurus Severtzov, 1858 -- valid -- jaguarundis
  Herpailurus yaguarondi (Lacépède, 1809) -- invalid -- Jaguarundi, jaguarundi
  Herpailurus yaguarondi cacomitli (Berlandier, 1859) -- invalid -- Gulf Coast jaguarundi, jaguarundi
  Herpailurus yaguarondi fossata (Mearns, 1901) -- invalid -- Guatemalan jaguarundi
  Herpailurus yaguarondi panamensis (J. A. Allen, 1904) -- invalid -- Panamanian jaguarundi
  Herpailurus yaguarondi tolteca (Thomas, 1898) -- invalid -- Sinaloan jaguarundi
  Herpailurus yaguarondi yaguarondi (Lacépède, 1809) -- invalid
  Herpestes Illiger, 1811 -- valid -- mongooses
  Herpestes auropunctatus (Hodgson, 1836) -- invalid -- Indian mongoose
  Herpestes brachyurus Gray, 1837 -- invalid -- Short-tailed Mongoose
  Herpestes edwardsii (É. Geoffroy Saint-Hilaire, 1818) -- invalid -- Indian gray mongoose
  Herpestes ichneumon (Linnaeus, 1758) -- valid -- Egyptian Mongoose
  Herpestes javanicus (É. Geoffroy Saint-Hilaire, 1818) -- invalid -- Small Asian Mongoose, Javan Mongoose, Indian mongoose
  Herpestes naso de Winton, 1901 -- invalid -- Long-nosed Mongoose
  Herpestes palustris Ghose, 1965 -- invalid -- Bengal mongoose
  Herpestes semitorquatus Gray, 1846 -- invalid -- Collared Mongoose
  Herpestes smithii Gray, 1837 -- invalid -- Ruddy Mongoose
  Herpestes urva (Hodgson, 1836) -- invalid -- Crab-eating Mongoose
  Herpestes vitticollis Bennett, 1835 -- invalid -- Stripe-necked Mongoose
  Herpestidae Bonaparte, 1845 -- valid -- mongooses
  Herpestinae Bonaparte, 1845 -- valid -- solitary mongooses
  Hesperoptenus Peters, 1868 -- valid
  Hesperoptenus blanfordi (Dobson, 1877) -- valid -- Blanford's Bat, Blanford's False Serotine, Least False Serotine
  Hesperoptenus doriae (Peters, 1868) -- valid -- False Serotine Bat, Doria's False Serotine, Peters's False Serotine
  Hesperoptenus gaskelli Hill, 1983 -- valid -- Gaskell's False Serotine
  Hesperoptenus tickelli (Blyth, 1851) -- valid -- Tickell's Bat, Tickell's False Serotine
  Hesperoptenus tomesi Thomas, 1905 -- valid -- Large False Serotine
  Heterocephalus Rüppell, 1842 -- valid
  Heterocephalus glaber Rüppell, 1842 -- valid -- Naked Mole-rat, Desert Mole Rat, Sand Puppy
  Heterohyrax Gray, 1868 -- valid -- Bush Hyraxes
  Heterohyrax antineae (Heim de Balsac and Bégouen, 1932) -- invalid -- Hoggar Hyrax
  Heterohyrax brucei (Gray, 1868) -- valid -- Yellow-spotted Rock Hyrax, Bush Hyrax
  Heteromyidae Gray, 1868 -- valid -- heteromyid rodents, Kangaroo Mice, Kangaroo Rats, Pocket Mice
  Heteromyinae Gray, 1868 -- valid
  Heteromys Desmarest, 1817 -- valid -- Forest Spiny Pocket Mice
  Heteromys anomalus (Thompson, 1815) -- valid -- Caribbean Spiny Pocket Mouse, Trinidad Spiny Pocket Mouse
  Heteromys australis Thomas, 1901 -- valid -- Southern Spiny Pocket Mouse
  Heteromys desmarestianus Gray, 1868 -- valid -- Desmarest's Spiny Pocket Mouse
  Heteromys gaumeri J. A. Allen and Chapman, 1897 -- valid -- Gaumer's Spiny Pocket Mouse
  Heteromys goldmani Merriam, 1902 -- valid -- Goldman's Spiny Pocket Mouse
  Heteromys nelsoni Merriam, 1902 -- valid -- Nelson's Spiny Pocket Mouse
  Heteromys oresterus Harris, 1932 -- valid -- Mountain Spiny Pocket Mouse
  Heteropsomyinae Anthony, 1917 -- valid
  Heteropsomys Anthony, 1916 -- valid
  Heteropsomys antillensis (Anthony, 1917) -- valid -- Antillean Cave Rat
  Heteropsomys insulans Anthony, 1916 -- valid -- Puerto Rican Cave Rat
  Hexaprotodon Falconer and Cautley, 1836 -- valid -- pygmy hippopotamuses
  Hexaprotodon liberiensis (Morton, 1849) -- valid -- pygmy hippopotamus, Pygmy Hippopotamus
  Hexaprotodon madagascariensis (Guldberg, 1883) -- valid -- Madagascan pygmy hippopotamus
  Hexolobodon Miller, 1929 -- valid
  Hexolobodon phenax Miller, 1929 -- valid -- Imposter Hutia
  Hexolobodontinae Woods, 1989 -- valid
  Hippocamelus Leuckart, 1816 -- valid -- guemals
  Hippocamelus antisensis (d'Orbigny, 1834) -- valid -- North Andean huemul, Peruvian guemal, Taruca
  Hippocamelus bisulcus (Molina, 1782) -- valid -- Guemal, Chilean Guemal, South Andean huemul
  Hippopotamidae Gray, 1821 -- valid -- hippopotamuses
  Hippopotamus Linnaeus, 1758 -- valid -- hippopotamuses
  Hippopotamus amphibius Linnaeus, 1758 -- valid -- hippopotamus, Common Hippopotamus
  Hippopotamus lemerlei Grandidier, 1868 -- valid -- Madagascan dwarf hippopotamus
  Hipposiderinae Lydekker, 1891 -- invalid
  Hipposideros Gray, 1831 -- valid
  Hipposideros abae J. A. Allen, 1917 -- valid -- Aba roundleaf bat, Aba Leaf-nosed Bat
  Hipposideros armiger (Hodgson, 1835) -- valid -- great roundleaf bat, Great Leaf-nosed Bat, Great Himalayan Leaf-nosed Bat
  Hipposideros ater Templeton, 1848 -- valid -- dusky roundleaf bat, Dusky Leaf-nosed Bat
  Hipposideros beatus K. Andersen, 1906 -- valid -- Benito roundleaf bat, Benito Leaf-nosed Bat
  Hipposideros bicolor (Temminck, 1834) -- valid -- bicolored roundleaf bat, Bicolored Leaf-nosed Bat
  Hipposideros breviceps Tate, 1941 -- valid -- short-headed roundleaf bat, Short-headed Leaf-nosed Bat
  Hipposideros caffer (Sundevall, 1846) -- valid -- Sundevall's roundleaf bat, Sundevall's Leaf-nosed Bat
  Hipposideros calcaratus (Dobson, 1877) -- valid -- spurred roundleaf bat, Spurred Leaf-nosed Bat
  Hipposideros camerunensis Eisentraut, 1956 -- invalid -- greater roundleaf bat, Cameroon Leaf-nosed Bat
  Hipposideros cervinus (Gould, 1854) -- valid -- fawn roundleaf bat, Fawn-colored Leaf-nosed Bat
  Hipposideros cineraceus Blyth, 1853 -- valid -- ashy roundleaf bat, Ashy Leaf-nosed Bat, Least Leaf-nosed Bat
  Hipposideros commersoni (É. Geoffroy Saint-Hilaire, 1813) -- invalid -- Commerson's roundleaf bat, Commerson's Leaf-nosed Bat
  Hipposideros coronatus (Peters, 1871) -- valid -- large Mindanao roundleaf bat, Large Mindanao Leaf-nosed Bat
  Hipposideros corynophyllus Hill, 1985 -- invalid -- Telefomin roundleaf bat, Telefomin Leaf-nosed Bat
  Hipposideros coxi Shelford, 1901 -- valid -- Cox's roundleaf bat, Cox's Leaf-nosed Bat
  Hipposideros crumeniferus (Lesueur and Petit, 1807) -- valid -- Timor roundleaf bat, Timor Leaf-nosed Bat
  Hipposideros curtus G. M. Allen, 1921 -- valid -- short-tailed roundleaf bat, Short-tailed Leaf-nosed Bat
  Hipposideros cyclops (Temminck, 1853) -- invalid -- cyclops roundleaf bat, Cyclops Leaf-nosed Bat
  Hipposideros diadema (É. Geoffroy Saint-Hilaire, 1813) -- valid -- diadem roundleaf bat, Diadem Leaf-nosed Bat
  Hipposideros dinops K. Andersen, 1905 -- valid -- fierce roundleaf bat, Fierce Leaf-nosed Bat
  Hipposideros doriae (Peters, 1871) -- valid -- Borneo roundleaf bat, Bornean Leaf-nosed Bat
  Hipposideros dyacorum Thomas, 1902 -- valid -- Dayak roundleaf bat, Dayak Leaf-nosed Bat
  Hipposideros fuliginosus (Temminck, 1853) -- valid -- sooty roundleaf bat, Sooty Leaf-nosed Bat
  Hipposideros fulvus Gray, 1838 -- valid -- fulvus roundleaf bat, Fulvus Leaf-nosed Bat
  Hipposideros galeritus Cantor, 1846 -- valid -- Cantor's roundleaf bat, Cantor's Leaf-nosed Bat
  Hipposideros halophyllus Hill and Yenbutra, 1984 -- valid -- Thailand roundleaf bat, Thailand Leaf-nosed Bat
  Hipposideros inexpectatus Laurie and Hill, 1954 -- valid -- crested roundleaf bat, Crested Leaf-nosed Bat
  Hipposideros jonesi Hayman, 1947 -- valid -- Jones's roundleaf bat, Jones's Leaf-nosed Bat
  Hipposideros lamottei Brosset, 1985 -- valid -- Lamotte's roundleaf bat, Lamotte's Leaf-nosed Bat
  Hipposideros lankadiva Kelaart, 1850 -- valid -- Indian roundleaf bat, Indian Leaf-nosed Bat
  Hipposideros larvatus (Horsfield, 1823) -- valid -- intermediate roundleaf bat, Intermediate Leaf-nosed Bat, Horsfield's Leaf-nosed Bat
  Hipposideros lekaguli Thonglongya and Hill, 1974 -- valid -- large Asian roundleaf bat, Large Asian Leaf-nosed Bat
  Hipposideros lylei Thomas, 1913 -- valid -- shield-faced roundleaf bat, Shield-faced Leaf-nosed Bat
  Hipposideros macrobullatus Tate, 1941 -- valid -- big-eared roundleaf bat, Big-eared Leaf-nosed Bat
  Hipposideros maggietaylorae Smith and Hill, 1981 -- valid -- Maggie Taylor's roundleaf bat, Maggie Taylor's Leaf-nosed Bat
  Hipposideros marisae Aellen, 1954 -- valid -- Aellen's roundleaf bat, Aellen's Leaf-nosed Bat
  Hipposideros megalotis (Heuglin, 1861) -- valid -- Ethiopian large-eared roundleaf bat, Large-eared Leaf-nosed Bat
  Hipposideros muscinus (Thomas and Doria, 1886) -- invalid -- Fly River roundleaf bat, Fly River Leaf-nosed Bat
  Hipposideros nequam K. Andersen, 1918 -- valid -- Malayan roundleaf bat, Malayan Leaf-nosed Bat
  Hipposideros obscurus (Peters, 1861) -- valid -- Philippine forest roundleaf bat, Philippine Forest Leaf-nosed Bat
  Hipposideros papua (Thomas and Doria, 1886) -- valid -- Biak roundleaf bat, Biak Leaf-nosed Bat
  Hipposideros pomona K. Andersen, 1918 -- valid -- Pomona roundleaf bat, Pomona Leaf-nosed Bat
  Hipposideros pratti Thomas, 1891 -- valid -- Pratt's roundleaf bat, Pratt's Leaf-nosed Bat
  Hipposideros pygmaeus (Waterhouse, 1843) -- valid -- Philippine pygmy roundleaf bat, Philippine Pygmy Leaf-nosed Bat
  Hipposideros ridleyi Robinson and Kloss, 1911 -- valid -- Ridley's roundleaf bat, Ridley's Leaf-nosed Bat, Singapore roundleaf horseshoe bat
  Hipposideros ruber (Noack, 1893) -- valid -- Noack's roundleaf bat, Noack's Leaf-nosed Bat
  Hipposideros sabanus Thomas, 1898 -- invalid -- least roundleaf bat
  Hipposideros schistaceus K. Andersen, 1918 -- invalid -- split roundleaf bat
  Hipposideros semoni Matschie, 1903 -- invalid -- Semon's roundleaf bat, Semon's Leaf-nosed Bat
  Hipposideros speoris (Schneider in Schreber, 1800) -- valid -- Schneider's roundleaf bat, Schneider's Leaf-nosed Bat
  Hipposideros stenotis Thomas, 1913 -- invalid -- narrow-eared roundleaf bat, Narrow-eared Leaf-nosed Bat
  Hipposideros turpis Bangs, 1901 -- valid -- lesser roundleaf bat, Lesser Leaf-nosed Bat
  Hipposideros wollastoni Thomas, 1913 -- invalid -- Wollaston's roundleaf bat, Wollaston's Leaf-nosed Bat
  Hippotraginae Brooke, 1876 -- invalid
  Hippotragus Sundevall, 1845 -- valid -- roan antelopes, sable antelopes
  Hippotragus equinus (Desmarest, 1804) -- invalid -- roan antelope
  Hippotragus leucophaeus (Pallas, 1766) -- valid -- blue buck, Blaaubok
  Hippotragus niger (Harris, 1838) -- valid -- Sable Antelope, sable antelope
  Histiotus Gervais, 1856 -- valid
  Histiotus alienus Thomas, 1916 -- valid -- Strange Big-eared Brown Bat
  Histiotus macrotus (Poeppig, 1835) -- valid -- Big-eared Brown Bat, Common Big-eared Brown Bat
  Histiotus montanus (Philippi and Landbeck, 1861) -- valid -- Small Big-eared Brown Bat
  Histiotus velatus (I. Geoffroy, 1824) -- valid -- Tropical Big-eared Brown Bat
  Hodomys Merriam, 1894 -- valid
  Hodomys alleni (Merriam, 1892) -- valid -- Allen's Woodrat
  Holochilus Brandt, 1835 -- valid -- Marsh Rats
  Holochilus brasiliensis (Desmarest, 1819) -- valid -- Web-footed Marsh Rat, Brazilian Marsh Rat
  Holochilus chacarius Thomas, 1906 -- valid -- Chaco Marsh Rat, Chacoan Marsh Rat
  Holochilus magnus Hershkovitz, 1955 -- invalid -- Greater Marsh Rat
  Holochilus sciureus Wagner, 1842 -- valid -- Marsh Rat, Amazonian Marsh Rat
  Hominidae Gray, 1825 -- valid -- man-like primates, Great Apes
  Homo Linnaeus, 1758 -- valid -- hominoids
  Homo sapiens Linnaeus, 1758 -- valid -- man, Humans, Human
  Hoplomys J. A. Allen, 1908 -- valid
  Hoplomys gymnurus (Thomas, 1897) -- valid -- Armored Rat
  Hyaena Brünnich, 1771 -- invalid
  Hyaena hyaena (Linnaeus, 1758) -- valid -- Striped Hyena
  Hyaena hyaena barbara de Blainville, 1844 -- invalid -- Barbary hyaena
  Hyaena hyaena hyaena (Linnaeus, 1758) -- invalid
  Hyaenidae Gray, 1821 -- valid -- Hyenas
  Hyaeninae Gray, 1821 -- valid -- bone-cracking hyenas
  Hybomys Thomas, 1910 -- valid -- Striped Mice
  Hybomys basilii Eisentraut, 1965 -- valid -- Bioko Hybomys
  Hybomys eisentrauti Van der Straeten and Hutterer, 1986 -- invalid
  Hybomys lunaris (Thomas, 1906) -- valid -- Ruwenzori Hybomys
  Hybomys planifrons (Miller, 1900) -- valid -- Liberian Forest Hybomys
  Hybomys trivirgatus (Temminck, 1853) -- valid -- West African Hybomys
  Hybomys univittatus (Peters, 1876) -- valid -- Peters's Hybomys
  Hydrochaeridae Gray, 1825 -- invalid
  Hydrochaeris Brünnich, 1772 -- invalid
  Hydrochaeris hydrochaeris (Linnaeus, 1766) -- invalid
  Hydrodamalis Retzius, 1794 -- valid -- sea cows
  Hydrodamalis gigas (Zimmermann, 1780) -- valid -- Steller's Sea Cow, great northern sea cow
  Hydromys É. Geoffroy, 1804 -- valid -- Water Rats
  Hydromys chrysogaster É. Geoffroy, 1804 -- valid -- Common Water Rat
  Hydromys habbema Tate and Archbold, 1941 -- invalid -- New Guinea Mountain Water Rat
  Hydromys hussoni Musser and Piik, 1982 -- valid -- Husson's Water Rat
  Hydromys neobrittanicus Tate and Archbold, 1935 -- invalid
  Hydromys shawmayeri (Hinton, 1943) -- invalid -- Shaw Mayer's Water Rat
  Hydropotes Swinhoe, 1870 -- valid
  Hydropotes inermis Swinhoe, 1870 -- valid -- Chinese Water Deer, Chinese water deer
  Hydropotinae Trouessart, 1898 -- valid
  Hydrurga Gistel, 1848 -- valid
  Hydrurga leptonyx (de Blainville, 1820) -- valid -- Leopard seal
  Hyemoschus Gray, 1845 -- valid
  Hyemoschus aquaticus (Ogilby, 1841) -- valid -- Water Chevrotain, water chevrotain
  Hylobates Illiger, 1811 -- valid
  Hylobates agilis F. Cuvier, 1821 -- valid -- Agile Gibbon
  Hylobates concolor (Harlan, 1826) -- invalid
  Hylobates gabriellae Thomas, 1909 -- invalid
  Hylobates hoolock (Harlan, 1834) -- invalid
  Hylobates klossii (Miller, 1903) -- valid -- Kloss's Gibbon
  Hylobates lar (Linnaeus, 1771) -- valid -- White-handed Gibbon, Lar Gibbon
  Hylobates leucogenys Ogilby, 1840 -- invalid
  Hylobates moloch (Audebert, 1798) -- valid -- Moloch Gibbon, Silvery Javan Gibbon
  Hylobates muelleri Martin, 1841 -- valid -- Borneo Gibbon, Müller's Bornean Gibbon, Müller's Gibbon
  Hylobates pileatus Gray, 1861 -- valid -- Pileated Gibbon
  Hylobates syndactylus (Raffles, 1821) -- invalid
  Hylobatidae Gray, 1871 -- valid -- gibbons
  Hylochoerus Thomas, 1904 -- valid
  Hylochoerus meinertzhageni Thomas, 1904 -- valid -- Giant Forest Hog, giant forest hog
  Hylomyinae Anderson, 1879 -- invalid
  Hylomys Müller, 1840 -- valid -- lesser gymnure, lesser moonrat
  Hylomys hainanensis (Shaw and Wong, 1959) -- invalid -- Hainan gymnure, Hainan moonrat
  Hylomys sinensis (Trouessart, 1909) -- invalid -- shrew gymnure, Chinese gymnure, shrew-hedgehog
  Hylomys suillus Müller, 1840 -- valid -- Short-tailed Gymnure
  Hylomyscus Thomas, 1926 -- valid -- African Wood Mice
  Hylomyscus aeta (Thomas, 1911) -- valid -- Beaded Hylomyscus
  Hylomyscus alleni (Waterhouse, 1838) -- valid -- Allen's Hylomyscus
  Hylomyscus baeri Heim de Balsac and Aellen, 1965 -- valid -- Baer's Hylomyscus
  Hylomyscus carillus (Thomas, 1904) -- valid -- Angolan Hylomyscus
  Hylomyscus denniae (Thomas, 1906) -- valid -- Montane Hylomyscus
  Hylomyscus parvus Brosset, Dubost and Heim de Balsac, 1965 -- valid -- Lesser Hylomyscus
  Hylomyscus stella (Thomas, 1911) -- valid -- Stella Hylomyscus
  Hylonycteris Thomas, 1903 -- valid -- Underwood's Long-tongued Bat
  Hylonycteris underwoodi Thomas, 1903 -- valid -- Underwood's Long-tongued Bat
  Hylopetes Thomas, 1908 -- valid -- Arrow-tailed Flying Squirrels
  Hylopetes alboniger (Hodgson, 1836) -- valid -- Particolored Flying Squirrel
  Hylopetes baberi (Blyth, 1847) -- invalid -- Afghan flying squirrel
  Hylopetes bartelsi (Chasen, 1939) -- valid -- Bartel's Flying Squirrel, Bartels's Flying Squirrel
  Hylopetes fimbriatus (Gray, 1837) -- invalid -- Kashmir Flying Squirrel
  Hylopetes lepidus (Horsfield, 1824) -- invalid -- Gray-cheeked Flying Squirrel, Pink-cheeked flying squirrel
  Hylopetes nigripes (Thomas, 1893) -- valid -- Palawan Flying Squirrel
  Hylopetes phayrei (Blyth, 1859) -- valid -- Indochinese Flying Squirrel, Phayre's Flying Squirrel
  Hylopetes sipora Chasen, 1940 -- valid -- Sipora Flying Squirrel
  Hylopetes spadiceus (Blyth, 1847) -- valid -- Red-cheeked Flying Squirrel
  Hylopetes winstoni (Sody, 1949) -- valid -- Sumatran Flying Squirrel
  Hyomys Thomas, 1904 -- valid -- New Guinean Giant Rats
  Hyomys dammermani Stein, 1933 -- valid -- Western Hyomys
  Hyomys goliath (Milne-Edwards, 1900) -- valid -- Eastern Hyomys
  Hyosciurus Archbold and Tate, 1935 -- valid -- Sulawesi Long-nosed Squirrels
  Hyosciurus heinrichi Archbold and Tate, 1935 -- valid -- Montane Long-nosed Squirrel
  Hyosciurus ileile Tate and Archbold, 1936 -- valid -- Lowland Long-nosed Squirrel
  Hyperacrius Miller, 1896 -- valid -- Kashmir Voles
  Hyperacrius fertilis (True, 1894) -- valid -- Subalpine Kashmir Vole, True's Vole
  Hyperacrius wynnei (Blanford, 1881) -- valid -- Murree Vole, Conifer Kashmir Vole
  Hyperoodon Lacépède, 1804 -- valid -- bottle-nosed whales, bottlenose whales
  Hyperoodon ampullatus (Forster, 1770) -- valid -- North Atlantic bottle-nosed whale, Northern Bottlenose Whale, baleine à bec commune, northern bottle-nosed whale, North Atlantic bottlenose whale
  Hyperoodon planifrons Flower, 1882 -- valid -- southern bottle-nosed whale, Southern Bottlenose Whale, Ballena-picuda frente plana
  Hypogeomys A. Grandidier, 1869 -- valid
  Hypogeomys antimena A. Grandidier, 1869 -- valid -- Malagasy giant rat, Votsovotsa
  Hypsignathus H. Allen, 1861 -- valid
  Hypsignathus monstrosus H. Allen, 1861 -- valid -- Hammer-headed Fruit Bat
  Hypsiprymnodon Ramsay, 1876 -- valid -- musky 'rat'-kangaroo
  Hypsiprymnodon moschatus Ramsay, 1876 -- valid -- Musky Rat-kangaroo, musky 'rat'-kangaroo, Musky Rat Kangaroo
  Hypudaeus ochrogaster Wagner, 1842 -- invalid
  Hyracoidea Huxley, 1869 -- valid -- cories, dassies, Hyraxes
  Hystricidae Fischer de Waldheim, 1817 -- valid -- Old World porcupines
  Hystricognathi Brandt, 1855 -- valid -- hystricognath rodents
  Hystrix Linnaeus, 1758 -- valid
  Hystrix africaeaustralis Peters, 1852 -- valid -- Cape Porcupine, Cape Crested Porcupine, South African Porcupine
  Hystrix brachyura Linnaeus, 1758 -- valid -- Malayan Porcupine, Himalayan Crestless Porcupine
  Hystrix crassispinis Günther, 1877 -- valid -- Thick-spined Porcupine, Borneo Short-tailed Porcupine
  Hystrix cristata Linnaeus, 1758 -- valid -- Crested Porcupine, North African Crested Porcupine
  Hystrix indica Kerr, 1792 -- valid -- Indian Crested Porcupine, White-tailed Porcupine
  Hystrix javanica F. Cuvier, 1823 -- valid -- Sunda Porcupine, Javan Porcupine
  Hystrix pumila Günther, 1879 -- valid -- Indonesian Porcupine, Philippine Porcupine, Palawan Porcupine, Philippine Short-tailed Porcupine
  Hystrix sumatrae (Lyon, 1907) -- valid -- Sumatran Porcupine, Sumatran Short-tailed Porcupine
  Ia Thomas, 1902 -- valid
  Ia io Thomas, 1902 -- valid -- Great Evening Bat
  Ichneumia I. Geoffroy Saint-Hilaire, 1837 -- valid
  Ichneumia albicauda (G. Cuvier, 1829) -- valid -- White-tailed Mongoose
  Ichthyomys Thomas, 1893 -- valid -- Crab-eating Rats
  Ichthyomys hydrobates (Winge, 1891) -- valid -- Crab-eating Rat, Silver-bellied Ichthyomyine
  Ichthyomys pittieri Handley and Mondolfi, 1963 -- valid -- Pittier's Crab-eating Rat, Pittier's Ichthyomyine
  Ichthyomys stolzmanni Thomas, 1893 -- valid -- Stolzmann's Crab-eating Rat, Stolzmann's Ichthyomyine
  Ichthyomys tweedii Anthony, 1921 -- valid -- Tweedy's Crab-eating Rat, Tweedy's Ichthyomyine
  Ictonyx Kaup, 1835 -- valid -- striped polecats
  Ictonyx libyca (Hemprich and Ehrenberg, 1833) -- invalid -- Saharan Striped Polecat
  Ictonyx striatus (Perry, 1810) -- valid -- Striped Polecat, Zorilla
  Idionycteris Anthony, 1923 -- valid -- Allen's big-eared bats
  Idionycteris phyllotis (G. M. Allen, 1916) -- valid -- Murciélago-mula de Allen, Allen's Big-eared Bat, Lappet-browed Bat, Mexican Big-eared Bat
  Idiurinae Miller and Gidley, 1918 -- invalid
  Idiurus Matschie, 1894 -- valid -- Pygmy Scaly-tailed Flying Squirrels, Pygmy Flying Squirrels
  Idiurus macrotis Miller, 1898 -- valid -- Long-eared Scaly-tailed Flying Squirrel, Long-eared Flying Squirrel
  Idiurus zenkeri Matschie, 1894 -- valid -- Zenker's Flying Squirrel, Pygmy Scaly-tailed Flying Squirrel
  Indopacetus Moore, 1968 -- valid
  Indopacetus pacificus (Longman, 1926) -- valid -- Tropical Bottlenose Whale, Longman's Beaked Whale, Indo-Pacific beaked whale
  Indri É. Geoffroy Saint-Hilaire and G. Cuvier, 1796 -- valid
  Indri indri (Gmelin, 1788) -- valid -- Indri
  Indridae Burnett, 1828 -- invalid
  Inia d'Orbigny, 1834 -- valid
  Inia geoffrensis (Blainville, 1817) -- valid -- Amazon River Dolphin, boto, Pink River Dolphin, boutu
  Insectivora -- invalid -- insectivores
  Iomys Thomas, 1908 -- valid -- Horsfield's Flying Squirrels
  Iomys horsfieldii (Waterhouse, 1838) -- valid -- Javanese Flying Squirrel
  Iomys sipora Chasen and Kloss, 1928 -- valid -- Mentawi Flying Squirrel, Mentawai Flying Squirrel
  Irenomys Thomas, 1919 -- valid
  Irenomys tarsalis (Philippi, 1900) -- valid -- Chilean climbing mouse, Large-footed Irenomys
  Isolobodon J. A. Allen, 1916 -- valid -- Puerto Rican hutias
  Isolobodon montanus (Miller, 1922) -- valid -- Montane Hutia
  Isolobodon portoricensis J. A. Allen, 1916 -- valid -- Puerto Rico hutia, Puerto Rican Hutia
  Isolobodontinae Woods, 1989 -- valid
  Isoodon Desmarest, 1817 -- valid -- short-nosed bandicoots
  Isoodon auratus (Ramsay, 1887) -- valid -- Golden Bandicoot
  Isoodon macrourus (Gould, 1842) -- valid -- Northern Brown Bandicoot
  Isoodon obesulus (Shaw, 1797) -- valid -- Southern Brown Bandicoot
  Isothrix Wagner, 1845 -- valid
  Isothrix bistriata Wagner, 1845 -- valid -- Yellow-crowned Brush-tailed Rat
  Isothrix pagurus Wagner, 1845 -- valid -- Plain Brush-tailed Rat
  Isthmomys Hooper and Musser, 1964 -- valid -- Isthmus Rats
  Isthmomys flavidus (Bangs, 1902) -- valid -- yellow Isthmus rat, Yellow Deermouse
  Isthmomys pirrensis (Goldman, 1912) -- valid -- Mount Pirri Isthmus rat, Mt. Pirri Isthmus rat, Mount Pirri Deermouse
  Jaculus Erxleben, 1777 -- valid -- African Desert Jerboas, Desert Jerboas
  Jaculus blanfordi (Murray, 1884) -- valid -- Blanford's Jerboa
  Jaculus jaculus (Linnaeus, 1758) -- valid -- Lesser Egyptian Jerboa
  Jaculus orientalis Erxleben, 1777 -- valid -- Greater Egyptian Jerboa
  Jaculus turcmenicus Vinogradov and Bondar, 1949 -- invalid
  Juscelinomys Moojen, 1965 -- valid -- Juscelin's Mice
  Juscelinomys candango Moojen, 1965 -- valid -- Candango mouse, Candango Akodont
  Kadarsanomys Musser, 1981 -- valid
  Kadarsanomys sodyi (Bartels, 1937) -- valid -- Javan Bamboo Rat
  Kannabateomys Jentink, 1891 -- valid
  Kannabateomys amblyonyx (Wagner, 1845) -- valid -- Atlantic Bamboo Rat
  Kerivoula Gray, 1842 -- valid
  Kerivoula aerosa Tomes, 1858 -- invalid -- dubious trumpet-eared bat
  Kerivoula africana Dobson, 1878 -- valid -- Tanzanian Woolly Bat
  Kerivoula agnella Thomas, 1908 -- valid -- St. Aignan's trumpet-eared bat, St. Aignan's Woolly Bat, Louisiade Woolly Bat
  Kerivoula argentata Tomes, 1861 -- valid -- Damara Woolly Bat
  Kerivoula atrox (Miller, 1905) -- invalid
  Kerivoula cuprosa Thomas, 1912 -- valid -- Copper Woolly Bat, Coppery Woolly Bat
  Kerivoula eriophora (Heuglin, 1877) -- valid -- Ethiopian Woolly Bat
  Kerivoula flora Thomas, 1914 -- valid -- Flores Woolly Bat
  Kerivoula hardwickii (Horsfield, 1824) -- valid -- Hardwicke's Woolly Bat, Common Woolly Bat, Hardwicke's Forest Bat
  Kerivoula intermedia Hill and Francis, 1984 -- valid -- Small Woolly Bat
  Kerivoula jagorii (Peters, 1866) -- invalid -- Peters's trumpet-eared bat
  Kerivoula lanosa (A. Smith, 1847) -- valid -- Lesser Woolly Bat
  Kerivoula minuta Miller, 1898 -- valid -- Least Woolly Bat
  Kerivoula muscina Tate, 1941 -- valid -- Fly River trumpet-eared bat, Fly River Woolly Bat
  Kerivoula myrella Thomas, 1914 -- valid -- Bismarck's Trumpet-eared Bat, Bismarck's Woolly Bat, Bismarck Woolly Bat
  Kerivoula papillosa (Temminck, 1840) -- valid -- Papillose Woolly Bat
  Kerivoula papuensis Dobson, 1878 -- invalid -- golden-tipped bat
  Kerivoula pellucida (Waterhouse, 1845) -- valid -- Clear-winged Woolly Bat
  Kerivoula phalaena Thomas, 1912 -- valid -- Spurrell's Woolly Bat, Spurrell's Trumpet-eared Bat
  Kerivoula picta (Pallas, 1767) -- valid -- painted bat, Painted Woolly Bat
  Kerivoula smithii Thomas, 1880 -- valid -- Smith's Woolly Bat
  Kerivoula whiteheadi Thomas, 1894 -- valid -- Whitehead's Woolly Bat
  Kerivoulinae Miller, 1907 -- valid -- woolly bats
  Kerodon F. Cuvier, 1825 -- valid
  Kerodon rupestris (Wied-Neuwied, 1820) -- valid -- Rock Cavy
  Kobus A. Smith, 1840 -- valid -- kobs
  Kobus ellipsiprymnus (Ogilby, 1833) -- valid -- waterbuck, Waterbuck
  Kobus kob (Erxleben, 1777) -- valid -- kob, Kob
  Kobus leche Gray, 1850 -- valid -- red lechwe, lechwe, Lechwe
  Kobus megaceros (Fitzinger, 1855) -- valid -- Nile lechwe, Nile Lechwe
  Kobus vardonii (Livingstone, 1857) -- valid -- Puku, puku
  Kogia Gray, 1846 -- valid -- pygmy sperm whales, small sperm whales
  Kogia breviceps (Blainville, 1838) -- valid -- Pygmy Sperm Whale, Cachalote pigmeo
  Kogia sima (Owen, 1866) -- valid -- Dwarf Sperm Whale
  Kogia simus (Owen, 1866) -- invalid -- dwarf sperm whale
  Komodomys Musser and Boeadi, 1980 -- valid
  Komodomys rintjanus (Sody, 1941) -- valid -- Nusa Tenggara Komodomys
  Kunsia Hershkovitz, 1966 -- valid -- South American Giant Rats
  Kunsia fronto (Winge, 1887) -- valid -- Fossorial Giant Rat, Fossorial Kunsia
  Kunsia tomentosus (Lichtenstein, 1830) -- valid -- Woolly Giant Rat, Woolly Kunsia
  Laephotis Thomas, 1901 -- valid
  Laephotis angolensis Monard, 1935 -- valid -- Angolan Long-eared Bat
  Laephotis botswanae Setzer, 1971 -- valid -- Botswanan Long-eared Bat
  Laephotis namibensis Setzer, 1971 -- valid -- Namib Long-eared Bat, Namibian Long-eared Bat
  Laephotis wintoni Thomas, 1901 -- valid -- de Winton's Long-eared Bat
  Lagenodelphis Fraser, 1956 -- valid -- Borneau dolphins
  Lagenodelphis hosei Fraser, 1956 -- valid -- Fraser's Dolphin, Delfín de Fraser
  Lagenorhynchus Gray, 1846 -- valid -- white-sided dolphins, white-beaked dolphins
  Lagenorhynchus acutus (Gray, 1828) -- valid -- Atlantic White-sided Dolphin, dauphin à flancs blancs
  Lagenorhynchus albirostris (Gray, 1846) -- valid -- White-beaked Dolphin, dauphin à nez blanc
  Lagenorhynchus australis (Peale, 1848) -- valid -- Peale's Dolphin
  Lagenorhynchus cruciger (Quoy and Gaimard, 1824) -- valid -- Hourglass Dolphin
  Lagenorhynchus obliquidens Gill, 1865 -- valid -- Pacific White-sided Dolphin, Delfín costado blanco
  Lagenorhynchus obscurus (Gray, 1828) -- valid -- Dusky Dolphin
  Lagenorhynchus obscurus fitzroyi (Waterhouse, 1838) -- valid -- South American Dusky Dolphin, Fitzroy's dolphin
  Lagenorhynchus obscurus obscurus (Gray, 1828) -- valid -- South African Dusky Dolphin, African dusky dolphin
  Lagidium Meyen, 1833 -- valid
  Lagidium peruanum Meyen, 1833 -- invalid -- Northern Mountain Viscacha
  Lagidium viscacia (Molina, 1782) -- valid -- Southern Moutain Viscacha, Common Moutain Viscacha
  Lagidium wolffsohni (Thomas, 1907) -- valid -- Wolffsohn's Mountain Viscacha
  Lagomorpha Brandt, 1855 -- valid -- coelho, tapeti, lagomorphs, Rabbits, Hares, Pikas
  Lagorchestes Gould, 1841 -- valid -- hare wallabies
  Lagorchestes asomatus Finlayson, 1943 -- valid -- Lake Mackay Hare-wallaby, Central Hare Wallaby
  Lagorchestes conspicillatus Gould, 1841 -- valid -- Spectacled Hare-wallaby, Spectacled Hare Wallaby
  Lagorchestes hirsutus Gould, 1844 -- valid -- Rufous Hare-wallaby, Rufous Hare Wallaby
  Lagorchestes leporides (Gould, 1840) -- valid -- Eastern Hare-wallaby, Eastern Hare Wallaby
  Lagostomus Brookes, 1828 -- valid
  Lagostomus maximus (Desmarest, 1817) -- valid -- Argentine Plains Viscacha, Plains Viscacha
  Lagostrophus Thomas, 1886 -- valid -- banded hare wallaby, munning
  Lagostrophus fasciatus (Peron and Lesueur, 1807) -- valid -- munning, Banded Hare-wallaby, Banded Hare Wallaby
  Lagothrix É. Geoffroy Saint-Hilaire in Humboldt, 1812 -- valid -- woolly monkeys
  Lagothrix flavicauda (Humboldt, 1812) -- valid -- Yellow-tailed Woolly Monkey, Peruvian Yellow-tailed Woolly Monkey
  Lagothrix lagotricha (Humboldt, 1812) -- invalid
  Lagurus Gloger, 1841 -- valid -- Sagebrush Voles
  Lagurus curtatus (Cope, 1868) -- invalid -- Sagebrush Vole
  Lagurus lagurus (Pallas, 1773) -- valid -- Steppe Vole, Steppe Lemming
  Lama G. Cuvier, 1800 -- valid -- llamas
  Lama glama (Linnaeus, 1758) -- valid -- llama, Guanaco
  Lama guanicoe (Müller, 1776) -- invalid -- guanaco
  Lama pacos (Linnaeus, 1758) -- invalid -- alpaca
  Lamottemys F. Petter, 1986 -- valid
  Lamottemys okuensis F. Petter, 1986 -- valid -- Mount Oku Lamottemys
  Lampronycteris brachyotis (Dobson, 1879) -- valid -- Orange-throated Bat, Yellow-throated Big-eared Bat
  Lariscus Thomas and Wroughton, 1909 -- valid -- Striped Ground Squirrels
  Lariscus hosei (Thomas, 1892) -- valid -- Four-striped Ground Squirrel
  Lariscus insignis (F. Cuvier, 1821) -- valid -- Three-striped Ground Squirrel
  Lariscus niobe (Thomas, 1898) -- valid -- Niobe Ground Squirrel
  Lariscus obscurus (Miller, 1903) -- valid -- Mentawai Three-striped Squirrel
  Lasionycteris Peters, 1866 -- valid -- silver-haired bats
  Lasionycteris noctivagans (Le Conte, 1831) -- valid -- Murciélago pelo plateado, chauve-souris argentée, Silver-haired Bat, Black Bat, Silver-black Bat
  Lasiopodomys Lataste, 1887 -- valid
  Lasiopodomys brandtii (Radde, 1861) -- valid -- Brandt's Vole
  Lasiopodomys fuscus (Büchner, 1889) -- invalid -- Plateau Vole, Smokey Vole
  Lasiopodomys mandarinus (Milne-Edwards, 1871) -- valid -- Mandarin Vole
  Lasiorhinus Gray, 1863 -- valid -- hairy-nosed wombats, soft-furred wombats
  Lasiorhinus krefftii (Owen, 1873) -- valid -- Northern Hairy-nosed Wombat
  Lasiorhinus latifrons (Owen, 1845) -- valid -- Southern Hairy-nosed Wombat
  Lasiurus Gray, 1831 -- valid -- hairy-tailed bats, red bats
  Lasiurus blossevillii (Lesson and Garnot, 1826) -- valid -- Murciélago-cola peluda de Blossevilli, Red Bat, Western Red Bat, Southern Red Bat
  Lasiurus borealis (Müller, 1776) -- valid -- red bat, chauve-souris rousse, Murciélago-cola peluda rojizo, Eastern Red Bat
  Lasiurus castaneus Handley, 1960 -- valid -- Tacarcuna bat, Tacarcunan Bat, Red-faced Red Bat
  Lasiurus cinereus (Palisot de Beauvois, 1796) -- invalid -- Murciélago-cola peluda canoso, chauve-souris cendrée, Hoary Bat, Northern Hoary Bat
  Lasiurus cinereus cinereus (Palisot de Beauvois, 1796) -- invalid
  Lasiurus cinereus semotus (H. Allen, 1890) -- invalid -- Hawaiian Hoary Bat
  Lasiurus ega (Gervais, 1856) -- invalid -- Murciélago-cola peluda amarillo, Southern Yellow Bat
  Lasiurus egregius (Peters, 1870) -- invalid -- Big Red Bat, Giant Red Bat
  Lasiurus intermedius H. Allen, 1862 -- invalid -- Murciélago-cola peluda norteño, Northern Yellow Bat
  Lasiurus minor Miller, 1931 -- valid -- little red bat, Minor Red Bat
  Lasiurus seminolus (Rhoads, 1895) -- valid -- Seminole Bat
  Lasiurus xanthinus (Thomas, 1897) -- invalid -- Murciélago-cola peluda de La Laguna, Western Yellow Bat
  Latax lutris nereis Merriam, 1904 -- invalid
  Latidens Thonglongya, 1972 -- valid
  Latidens salimalii Thonglongya, 1972 -- valid -- Salim Ali's Fruit Bat
  Lavia Gray, 1838 -- valid
  Lavia frons (É. Geoffroy Saint-Hilaire, 1810) -- valid -- Yellow-winged False-vampire, Yellow-winged Bat
  Leggadina Thomas, 1910 -- valid -- Australian Native Mice
  Leggadina forresti (Thomas, 1906) -- valid -- Forrest's Leggadina
  Leggadina lakedownensis Watts, 1976 -- valid -- Lakeland Downs Leggadina
  Leimacomys Matschie, 1893 -- valid
  Leimacomys buettneri Matschie, 1893 -- valid -- Groove-toothed Forest Mouse, Büttner's African Forest Mouse
  Leithiinae Lydekker, 1896 -- valid
  Lemmiscus Thomas, 1912 -- valid -- sagebrush voles
  Lemmiscus curtatus (Cope, 1868) -- valid -- Sagebrush Vole
  Lemmus Rochebrune, 1843 -- invalid -- brown lemmings
  Lemmus amurensis Vinogradov, 1924 -- valid -- Amur lemming, Amur Brown Lemming
  Lemmus lemmus (Linnaeus, 1758) -- valid -- Norway Lemming
  Lemmus nigripes (True, 1894) -- invalid
  Lemmus sibiricus (Kerr, 1792) -- valid -- Black-footed Lemming, Siberian Brown Lemming, Brown Lemming, Siberian Lemming
  Lemmus trimucronatus (Richardson, 1825) -- valid -- Nearctic Brown Lemming
  Lemniscomys Trouessart, 1881 -- valid -- Striped Grass Mice
  Lemniscomys barbarus (Linnaeus, 1767) -- valid -- Barbary Lemniscomys
  Lemniscomys bellieri Van der Straeten, 1975 -- valid -- Bellier's Lemniscomys
  Lemniscomys griselda (Thomas, 1904) -- valid -- Griselda's Lemniscomys
  Lemniscomys hoogstraali Dieterlen, 1991 -- valid -- Hoogstraal's Lemniscomys
  Lemniscomys linulus (Thomas, 1910) -- valid -- Senegal Lemniscomys
  Lemniscomys macculus (Thomas and Wroughton, 1910) -- valid -- Buffoon Lemniscomys
  Lemniscomys mittendorfi Eisentraut, 1968 -- valid -- Mittendorf's Lemniscomys
  Lemniscomys rosalia (Thomas, 1904) -- valid -- Single-Striped Lemniscomys
  Lemniscomys roseveari Van der Straeten, 1980 -- valid -- Rosevear's Lemniscomys
  Lemniscomys striatus (Linnaeus, 1758) -- valid -- Typical Lemniscomys
  Lemur Linnaeus, 1758 -- valid -- Ring-tailed Lemur
  Lemur catta Linnaeus, 1758 -- valid -- Ring-tailed Lemur
  Lemuridae Gray, 1821 -- valid -- bamboo lemurs, true lemurs, ruffed lemurs
  Lenomys Thomas, 1898 -- valid
  Lenomys meyeri (Jentink, 1879) -- valid -- Meyer's Lenomys
  Lenothrix Miller, 1903 -- valid
  Lenothrix canus Miller, 1903 -- valid -- Sundaic Lenothrix
  Lenoxus Thomas, 1909 -- valid
  Lenoxus apicalis (J. A. Allen, 1900) -- valid -- Andean rat, White-tailed Akodont
  Leontopithecus Lesson, 1840 -- valid -- lion tamarins
  Leontopithecus caissara Lorini and Persson, 1990 -- valid -- Black-faced Lion Tamarin, Superagui Lion Tamarin
  Leontopithecus chrysomelas (Kuhl, 1820) -- valid -- Golden-headed Lion Tamarin
  Leontopithecus chrysopygus (Mikan, 1823) -- valid -- Golden-rumped Lion Tamarin, Black Lion Tamarin
  Leontopithecus rosalia (Linnaeus, 1766) -- valid -- Golden Lion Tamarin
  Leopardus Gray, 1842 -- valid -- American spotted cats
  Leopardus griseus Gray, 1842 -- invalid
  Leopardus pardalis (Linnaeus, 1758) -- valid -- Ocelot, Ocelote, Ocelot, gato onza, gato tigre, pumilio, manigordo, tigrillo, cunaguaro
  Leopardus pardalis pardalis (Linnaeus, 1758) -- valid
  Leopardus tigrinus (Schreber, 1775) -- valid -- little spotted cat, tiger cat, Oncilla, Northern Tigrina, Oncille du nord, chat-tigre du nord, tigrillo, tirica, gato tigre, caucel
  Leopardus wiedii (Schinz, 1821) -- valid -- Margay, Margay, Margay, Tigrillo, caucal, gato tigre
  Leopardus wiedii yucatanica (Nelson and Goldman, 1931) -- invalid
  Leopoldamys Ellerman, 1947 -- valid -- Long-tailed Giant Rats
  Leopoldamys edwardsi (Thomas, 1882) -- valid -- Edward's Leopoldamys, Edward's Rat
  Leopoldamys neilli (J. T. Marshall Jr., 1976) -- valid -- Neill's Leopoldamys
  Leopoldamys sabanus (Thomas, 1887) -- valid -- Indomalayan Leopoldamys, Noisy Rat
  Leopoldamys siporanus (Thomas, 1895) -- valid -- Mentawai Archipelago Leopoldamys
  Lepilemur I. Geoffroy Saint-Hilaire, 1851 -- valid -- sportive lemurs
  Lepilemur dorsalis Gray, 1870 -- valid -- Gray-backed Sportive Lemur, Black-striped Sportive Lemur, Gray's Sportive Lemur
  Lepilemur edwardsi (Forsyth Major in Forbes, 1894) -- valid -- Milne-Edwards' Sportive Lemur, Milne-Edwards's Sportive Lemur
  Lepilemur leucopus (Forsyth Major in Forbes, 1894) -- valid -- White-footed Sportive Lemur
  Lepilemur microdon (Forsyth Major in Forbes, 1894) -- valid -- Small-toothed Sportive Lemur
  Lepilemur mustelinus I. Geoffroy Saint-Hilaire, 1851 -- valid -- Weasel Sportive Lemur, Weasel Lemur
  Lepilemur ruficaudatus Grandidier, 1867 -- valid -- Red-tailed Sportive Lemur
  Lepilemur septentrionalis Rumpler and Albignac, 1975 -- valid -- Sahafary Sportive Lemur, Northern Sportive Lemur
  Leporidae Fischer, 1817 -- valid -- Hares, Rabbits
  Leporillus Thomas, 1906 -- valid -- Australian Stick-nest Rats
  Leporillus apicalis (Gould, 1853) -- valid -- Lesser Stick-nest Rat
  Leporillus conditor (Sturt, 1848) -- valid -- Greater Stick-nest Rat
  Leptailurus Severtzov, 1858 -- valid
  Leptailurus serval (Schreber, 1776) -- valid -- Serval, Serval, Serval
  Leptailurus serval constantina (Forster, 1780) -- invalid -- Barbary serval
  Leptailurus serval serval (Schreber, 1776) -- valid
  Leptomys Thomas, 1897 -- valid -- New Guinean Water Rats
  Leptomys elegans Thomas, 1897 -- valid -- Elegant Leptomys
  Leptomys ernstmayri Rümmler, 1932 -- valid -- Ernst Mayr's Leptomys
  Leptomys signatus Tate and Archbold, 1938 -- valid -- Fly River Leptomys
  Leptonychotes Gill, 1872 -- valid
  Leptonychotes weddellii (Lesson, 1826) -- valid -- Weddell Seal
  Leptonycteris Lydekker, 1891 -- valid -- Mexican long-nosed bats
  Leptonycteris curasoae Miller, 1900 -- valid -- Murciélago-hocicudo de Curazao, Curaçaoan Long-nosed Bat, Southern Long-nosed Bat
  Leptonycteris curasoae yerbabuenae Martínez and Villa-R., 1940 -- invalid -- Lesser Long-nosed Bat
  Leptonycteris nivalis (Saussure, 1860) -- valid -- Murciélago-hocicudo mayor, Mexican Long-nosed Bat, Greater Long-nosed Bat
  Leptonycteris nivalis yerbabuenae Martínez and Villa-R., 1940 -- invalid
  Leptonycteris sanborni Hoffmeister, 1957 -- invalid -- Sanborn's Long-nosed Bat
  Leptonycteris yerbabuenae Martínez and Villa-R., 1940 -- valid -- Lesser Long-nosed Bat
  Lepus Linnaeus, 1758 -- valid -- Hares, Jackrabbits, Jack Rabbits
  Lepus alleni Mearns, 1890 -- valid -- Antelope Jack Rabbit, Liebre antilope, Antelope Jackrabbit, Allen's Jackrabbit, White-sided Jackrabbit, liebre torda, liebre blanca, libre appaloosa
  Lepus americanus Erxleben, 1777 -- valid -- lièvre d'Amérique, Snowshoe Hare, Varying Hare
  Lepus arcticus Ross, 1819 -- valid -- Arctic Hare, lièvre arctique
  Lepus arcticus labradorius Miller, 1899 -- valid
  Lepus brachyurus Temminck, 1844 -- valid -- Japanese Hare
  Lepus californicus Gray, 1837 -- valid -- Black-tailed Jack Rabbit, Liebre cola negra, Black-tailed Jackrabbit, California Jackrabbit, Gray-sided Jackrabbit, Narrow-gauge Mule, Jackass-hare, Texas Jack, Texan Hare, Great Plains Jackrabbit
  Lepus callotis Wagler, 1830 -- valid -- White-sided Jack Rabbit, Liebre torda, White-sided Jackrabbit, Beautiful-eared jack rabbit, Gaillard jack rabbit, snow sides, Antelope Rabbit, Gaillard's Jackrabbit, Snowsides, Liebra pinta
  Lepus capensis Linnaeus, 1758 -- valid -- Cape Hare, Arabian Hare, Brown Hare, Desert Hare
  Lepus castroviejoi Palacios, 1977 -- valid -- Broom Hare
  Lepus comus Allen, 1927 -- valid -- Yunnan Hare
  Lepus coreanus Thomas, 1892 -- valid -- Korean Hare
  Lepus corsicanus de Winton, 1898 -- valid -- Corsican Hare
  Lepus europaeus Pallas, 1778 -- valid -- European Hare, Brown Hare, Common Hare
  Lepus fagani Thomas, 1903 -- valid -- Ethiopian Hare
  Lepus flavigularis Wagner, 1844 -- valid -- Tehuantepec hare, Tehuantepec jack rabbit, Tehuantepec Jackrabbit, Tropical Hare, Liebre tropical, Liebre de Tehuantepec
  Lepus gaillardi Mearns, 1896 -- invalid
  Lepus granatensis Rosenhauer, 1856 -- valid -- Granada Hare, Iberian Hare, Liebre Ibérica
  Lepus hainanus Swinhoe, 1870 -- valid -- Hainan Hare
  Lepus idahoensis Merriam, 1891 -- invalid
  Lepus insularis W. Bryant, 1891 -- valid -- Black Jackrabbit, Espiritu Santo Jackrabbit, Liebre negra, Liebre prieta, Liebre de Espíritu Santo
  Lepus mandshuricus Radde, 1861 -- valid -- Manchurian Hare
  Lepus nigricollis F. Cuvier, 1823 -- valid -- Indian Hare, Black-napped Hare
  Lepus oiostolus Hodgson, 1840 -- valid -- Woolly Hare, Highland Hare, Gray-tailed Hare
  Lepus othus Merriam, 1900 -- valid -- Alaskan Hare, Beringian hare, Tundra Hare, Alaska Tundra Hare, Tunrda Polar Hare, St. Michael's Hare, Swift Hare, Alaska Arctic Hare, Northern Hare
  Lepus paludicola Miller and Bangs, 1894 -- invalid
  Lepus palustris Bachman, 1837 -- invalid
  Lepus peguensis Blyth, 1855 -- valid -- Burmese Hare, Siamese Hare
  Lepus saxatilis F. Cuvier, 1823 -- valid -- Scrub Hare, Cape Scrub Hare
  Lepus sinensis Gray, 1832 -- valid -- Chinese Hare
  Lepus starcki Petter, 1963 -- valid -- Ethiopian Highland Hare
  Lepus timidus Linnaeus, 1758 -- valid -- Mountain Hare, Varying Hare
  Lepus tolai Pallas, 1778 -- valid -- Tolai Hare
  Lepus townsendii Bachman, 1839 -- valid -- White-tailed Jack Rabbit, White-tailed Jackrabbit
  Lepus victoriae Thomas, 1893 -- valid -- African Savanna Hare
  Lepus yarkandensis Günther, 1875 -- valid -- Yarkand Hare
  Lestodelphys Tate, 1934 -- valid -- Patagonian opposum
  Lestodelphys halli (Thomas, 1921) -- valid -- Patagonian Opossum
  Lestoros Oehser, 1934 -- valid
  Lestoros inca (Thomas, 1917) -- valid -- Incan Caenolestid, Incan Shrew-opossum
  Liberiictis Hayman, 1958 -- valid
  Liberiictis kuhni Hayman, 1958 -- valid -- Liberian Mongoose
  Lichonycteris Thomas, 1895 -- valid -- long-tongued bats
  Lichonycteris obscura Thomas, 1895 -- valid -- Dark Long-tongued Bat
  Limnogale Major, 1896 -- invalid
  Limnogale mergulus Major, 1896 -- invalid -- Web-footed Tenrec, aquatic tenrec
  Limnomys Mearns, 1905 -- valid
  Limnomys sibuanus Mearns, 1905 -- valid -- White-bellied Limnomys
  Liomys Merriam, 1902 -- valid -- Spiny Pocket Mice
  Liomys adspersus (Peters, 1874) -- valid -- Panamanian Spiny Pocket Mouse, Peters' Spiny Pocket Mouse
  Liomys irroratus (Gray, 1868) -- valid -- Ratón-espinoso mexicano, Mexican Spiny Pocket Mouse
  Liomys pictus (Thomas, 1893) -- valid -- Painted Spiny Pocket Mouse
  Liomys salvini (Thomas, 1893) -- valid -- Salvin's Spiny Pocket Mouse
  Liomys spectabilis Genoways, 1971 -- valid -- Jaliscan Spiny Pocket Mouse
  Lionycteris Thomas, 1913 -- valid -- Chestnut Long-tongued Bat
  Lionycteris spurrelli Thomas, 1913 -- valid -- Chestnut Long-tongued Bat
  Lipotes Miller, 1918 -- valid
  Lipotes vexillifer Miller, 1918 -- valid -- Chinese river dolphin, Yangtze River Dolphin, baiji, White-flag Dolphin, Baiji
  Lipotidae Zhou, Qian and Li, 1978 -- valid
  Lissodelphis Gloger, 1841 -- valid -- right-whale dolphins, right whale dolphins
  Lissodelphis borealis (Peale, 1848) -- valid -- Northern Right Whale Dolphin, Delfín-ballena norteño
  Lissodelphis peronii (Lacépède, 1804) -- valid -- Southern Right Whale Dolphin
  Litocranius Kohl, 1886 -- valid
  Litocranius walleri (Brooke, 1879) -- valid -- gerenuk, Gerenuk
  Lobodon Gray, 1844 -- valid
  Lobodon carcinophagus (Hombron and Jacquinot, 1842) -- invalid -- crabeater seal
  Lonchophylla Thomas, 1903 -- valid -- nectar bats
  Lonchophylla bokermanni Sazima, Vizotto and Taddei, 1978 -- valid -- Bokermann's Nectar Bat
  Lonchophylla dekeyseri Taddei, Vizotto and Sazima, 1983 -- valid -- Dekeyser's Nectar Bat
  Lonchophylla handleyi Hill, 1980 -- valid -- Handley's Nectar Bat
  Lonchophylla hesperia G. M. Allen, 1908 -- valid -- Western Nectar Bat
  Lonchophylla mordax Thomas, 1903 -- valid -- Goldman's Nectar Bat, Brazilian Nectar Bat
  Lonchophylla robusta Miller, 1912 -- valid -- Orange Nectar Bat
  Lonchophylla thomasi J. A. Allen, 1904 -- invalid -- Thomas's Nectar Bat
  Lonchophyllinae Griffiths, 1982 -- valid -- lesser nectar bats, nectar bats
  Lonchorhina Tomes, 1863 -- valid -- sword-nosed bats
  Lonchorhina aurita Tomes, 1863 -- valid -- Tomes's Sword-nosed Bat, Common Sword-nosed Bat
  Lonchorhina fernandezi Ochoa and Ibáñez, 1982 -- valid -- Fernandez's Sword-nosed Bat
  Lonchorhina marinkellei Hernández-Camacho and Cadena-G., 1978 -- valid -- Marinkelle's Sword-nosed Bat
  Lonchorhina orinocensis Linares and Ojasti, 1971 -- valid -- Orinocoan Sword-nosed Bat, Orinoco Sword-nosed Bat
  Lonchothrix Thomas, 1920 -- valid
  Lonchothrix emiliae Thomas, 1920 -- valid -- Tuft-tailed Spiny Tree Rat
  Lontra Gray, 1843 -- valid -- river otters
  Lontra canadensis (Schreber, 1777) -- valid -- North American River Otter, Northern River Otter, River Otter, Nutria Norteamericana, Nutria del Cánada, Loutre de Cánada, Common Otter
  Lontra felina (Molina, 1782) -- valid -- chungungo, Marine Otter
  Lontra longicaudis (Olfers, 1818) -- valid -- Amazonian River Otter, Long-tailed Otter, Neotropical River Otter, Neotropical Otter
  Lontra provocax (Thomas, 1908) -- valid -- Large River Otter, River Wolf, Southern River Otter
  Lophiomyinae Milne-Edwards, 1867 -- valid
  Lophiomys Milne-Edwards, 1867 -- valid
  Lophiomys imhausi Milne-Edwards, 1867 -- valid -- Crested Rat, Maned Rat
  Lophocebus Palmer, 1903 -- valid -- crested mangabeys
  Lophocebus albigena (Gray, 1850) -- valid -- Gray-cheeked Mangabey
  Lophuromys Peters, 1874 -- valid -- Brush-furred Rats
  Lophuromys cinereus Dieterlen and Gelmroth, 1974 -- invalid
  Lophuromys flavopunctatus Thomas, 1888 -- valid -- Ethiopian Buff-spotted Brush-furred Rat
  Lophuromys luteogaster Hatt, 1934 -- valid -- Buff-bellied Brush-furred Rat
  Lophuromys medicaudatus Dieterlen, 1975 -- valid -- Western Rift Brush-furred Rat
  Lophuromys melanonyx F. Petter, 1972 -- valid -- Black-clawed Brush-furred Rat
  Lophuromys nudicaudus Heller, 1911 -- valid -- Fire-bellied Brush-furred Rat
  Lophuromys rahmi Verheyen, 1964 -- valid -- Rahm's Brush-furred Rat
  Lophuromys sikapusi (Temminck, 1853) -- valid -- Rusty-bellied Brush-furred Rat
  Lophuromys woosnami Thomas, 1906 -- valid -- Woosnam's Brush-furred Rat
  Lorentzimys Jentink, 1911 -- valid
  Lorentzimys nouhuysi Jentink, 1911 -- valid -- Long-footed Tree Mouse
  Loridae Gray, 1821 -- invalid
  Loris É. Geoffroy Saint-Hilaire, 1796 -- valid -- slender lorises
  Loris tardigradus (Linnaeus, 1758) -- valid -- Red Slender Loris
  Loxodonta Anonymous, 1827 -- invalid -- African Elephants
  Loxodonta africana (Blumenbach, 1797) -- valid -- African savannah elephant, African elephant, African Bush Elephant, African Savanna Elephant
  Lutra Brünnich, 1771 -- invalid -- river otters
  Lutra canadensis (Schreber, 1777) -- invalid -- River Otter
  Lutra gracilis Bechstein, 1800 -- invalid
  Lutra lutra (Linnaeus, 1758) -- valid -- European Otter, Common Otter, Eurasian Otter
  Lutra maculicollis Lichtenstein, 1835 -- invalid -- Spotted-necked Otter
  Lutra stelleri Lesson, 1827 -- invalid
  Lutra sumatrana (Gray, 1865) -- valid -- Hairy-nosed Otter
  Lutreolina Thomas, 1910 -- valid -- thick-tailed opossum
  Lutreolina crassicaudata (Desmarest, 1804) -- valid -- Lutrine Opossum, Big Lutrine Opossum
  Lutrinae Bonaparte, 1838 -- valid -- otters
  Lutrogale Gray, 1865 -- valid -- smooth-coated otters
  Lutrogale perspicillata (I. Geoffroy Saint-Hilaire, 1826) -- valid -- Smooth-coated Otter
  Lycaon Brookes, 1827 -- valid
  Lycaon pictus (Temminck, 1820) -- valid -- African hunting dog, African Wild Dog, Painted Hunting Dog
  Lyncodon Gervais, 1845 -- valid -- Patagonian Weasel
  Lyncodon patagonicus (de Blainville, 1842) -- valid -- Patagonian Weasel
  Lynx Kerr, 1792 -- valid -- bobcats, lynxes
  Lynx canadensis Kerr, 1792 -- valid -- Canadian Lynx, Canada lynx, lynx, lynx du Canada, loup-cervier, Lince de Canada
  Lynx caracal (Schreber, 1776) -- invalid
  Lynx lynx (Linnaeus, 1758) -- valid -- Eurasian Lynx, Lynx commun, lynx boréal, Lince
  Lynx pardinus (Temminck, 1827) -- valid -- Spanish lynx, Iberian Lynx, Lynx pardelle, Lynx d'Espagne, Lince iberico
  Lynx rufus (Schreber, 1777) -- valid -- Bobcat, Lince americano, lynx roux, Lince rojo, lynx bai
  Macaca Lacépède, 1799 -- valid -- macaques
  Macaca arctoides (I. Geoffroy Saint-Hilaire, 1831) -- valid -- Stump-tailed Macaque
  Macaca assamensis (McClelland, 1840) -- valid -- Assamese Macaque, Assam Macaque
  Macaca cyclopis (Swinhoe, 1863) -- valid -- Taiwan Macaque, Formosan Rock Macaque, Taiwanese Macaque
  Macaca fascicularis (Raffles, 1821) -- valid -- Long-tailed Macaque, Crab-eating Macaque
  Macaca fuscata (Blyth, 1875) -- valid -- Japanese Macaque
  Macaca maura (Schinz, 1825) -- valid -- Moor Macaque
  Macaca mulatta (Zimmermann, 1780) -- valid -- Rhesus Monkey, Rhesus Macaque
  Macaca nemestrina (Linnaeus, 1766) -- valid -- Sunda Pig-tailed Macaque, Southern Pig-tailed Macaque
  Macaca nigra (Desmarest, 1822) -- valid -- Celebes Crested Macaque, Crested Macaque
  Macaca ochreata (Ogilby, 1841) -- valid -- Booted Macaque
  Macaca radiata (É. Geoffroy Saint-Hilaire, 1812) -- valid -- Bonnet Macaque
  Macaca silenus (Linnaeus, 1758) -- valid -- liontail macaque, Lion-tailed Macaque
  Macaca sinica (Linnaeus, 1771) -- valid -- Toque Macaque
  Macaca sylvanus (Linnaeus, 1758) -- valid -- Barbary Macaque
  Macaca thibetana (A. Milne-Edwards, 1870) -- valid -- Père David's Macaque, Tibetan Macaque, Milne-Edwards's Macaque
  Macaca tonkeana (Meyer, 1899) -- valid -- Tonkean Macaque
  Macroderma Miller, 1906 -- valid
  Macroderma gigas (Dobson, 1880) -- valid -- Australian False Vampire Bat, Ghost False-vampire, Ghost Bat
  Macrogalidia Schwarz, 1910 -- valid
  Macrogalidia musschenbroekii (Schlegel, 1877) -- valid -- Sulawesi Palm Civet
  Macroglossinae Gray, 1866 -- invalid
  Macroglossus F. Cuvier, 1824 -- valid
  Macroglossus minimus (E. Geoffroy, 1810) -- valid -- lesser long-tongued fruit bat, Dagger-toothed Long-nosed Fruit Bat, Lesser Long-tongued Blossom Bat
  Macroglossus sobrinus K. Andersen, 1911 -- valid -- greater long-tongued fruit bat, Greater Long-nosed Fruit Bat, Greater Long-tongued Blossom Bat
  Macrophyllum Gray, 1838 -- valid -- Long-legged Bat
  Macrophyllum macrophyllum (Schinz, 1821) -- valid -- Long-legged Bat
  Macropodidae Gray, 1821 -- valid -- kangaroos, wallabies
  Macropus Shaw, 1790 -- valid
  Macropus agilis (Gould, 1842) -- invalid -- Agile Wallaby
  Macropus antilopinus (Gould, 1842) -- invalid -- antilopine wallaroo, Antilopine Kangaroo
  Macropus bernardus Rothschild, 1904 -- invalid -- Woodward's Wallaroo, black wallaroo
  Macropus dorsalis (Gray, 1837) -- invalid -- Black-striped Wallaby
  Macropus eugenii (Desmarest, 1817) -- invalid -- Tammar Wallaby
  Macropus fuliginosus (Desmarest, 1817) -- valid -- Western Grey Kangaroo
  Macropus giganteus Shaw, 1790 -- valid -- Eastern Grey Kangaroo
  Macropus greyi Waterhouse, 1846 -- invalid -- Toolache Wallaby, tooloche wallaby
  Macropus irma (Jourdan, 1837) -- invalid -- Western Brush Wallaby
  Macropus parma Waterhouse, 1845 -- invalid -- Parma Wallaby
  Macropus parryi Bennett, 1835 -- invalid -- Pretty-faced Wallaby
  Macropus robustus Gould, 1841 -- invalid -- Wallaroo
  Macropus rufogriseus (Desmarest, 1817) -- invalid -- Red-necked Wallaby
  Macropus rufus (Desmarest, 1822) -- invalid -- Red Kangaroo
  Macroscelidea Butler, 1956 -- valid -- Elephant Shrews
  Macroscelides A. Smith, 1829 -- valid
  Macroscelides proboscideus (Shaw, 1800) -- valid -- Short-eared Elephant Shrew, Karoo Round-eared Sengi
  Macroscelididae Bonaparte, 1838 -- valid
  Macrotarsomys Milne-Edwards and G. Grandidier, 1898 -- valid -- Big-footed Mice
  Macrotarsomys bastardi Milne-Edwards and G. Grandidier, 1898 -- valid -- Bastard big-footed mouse, Lesser Big-footed Mouse
  Macrotarsomys ingens F. Petter, 1959 -- valid -- Greater Big-footed Mouse
  Macrotis Reid, 1837 -- valid -- bilbies, rabbit-eared bandicoots
  Macrotis lagotis (Reid, 1837) -- valid -- Greater Bilby
  Macrotis leucura (Thomas, 1887) -- valid -- Lesser Bilby
  Macrotus Gray, 1843 -- valid -- big-eared bats
  Macrotus californicus Baird, 1858 -- valid -- California Leaf-nosed Bat, Murciélago-orejón californiano, Californian Leaf-nosed Bat
  Macrotus waterhousii Gray, 1843 -- valid -- Murciélago-orejón mexicano, Waterhouse's Leaf-nosed Bat
  Macruromys Stein, 1933 -- valid -- New Guinean Rats
  Macruromys elegans Stein, 1933 -- valid -- Lesser Macruromys
  Macruromys major Rümmler, 1935 -- valid -- Greater Macruromys
  Madoqua Ogilby, 1837 -- valid -- dik-diks
  Madoqua guentheri Thomas, 1894 -- valid -- Günther's Dikdik, Günther's dik-dik
  Madoqua kirkii (Günther, 1880) -- valid -- Kirk's dik-dik, Kirk's Dikdik
  Madoqua piacentinii Drake-Brockman, 1911 -- valid -- Piacentini's Dikdik, silver dik-dik
  Madoqua saltiana (Desmarest, 1816) -- invalid -- Salt's dik-dik, Salt's Dikdik
  Makalata Husson, 1978 -- valid
  Makalata armata (I. Geoffroy Saint-Hilaire, 1838) -- invalid
  Malacomys Milne-Edwards, 1877 -- valid -- African Swamp Rats
  Malacomys cansdalei Ansell, 1958 -- valid -- Cansdale's Malacomys
  Malacomys edwardsi Rochebrune, 1885 -- valid -- Edwards' Malacomys
  Malacomys longipes Milne-Edwards, 1877 -- valid -- Common Malacomys
  Malacomys lukolelae (Hatt, 1934) -- invalid
  Malacomys verschureni Verheyen and Van der Straeten, 1977 -- invalid
  Malacothrix Wagner, 1843 -- valid
  Malacothrix typica (A. Smith, 1834) -- valid -- Gerbil Mouse, Large-eared African Desert Mouse
  Mallomys Thomas, 1898 -- valid -- Woolly Rats
  Mallomys aroaensis (De Vis, 1907) -- valid -- De Vis's Mallomys
  Mallomys gunung Flannery, Aplin and Groves, 1989 -- valid -- Alpine Mallomys
  Mallomys istapantap Flannery, Aplin and Groves, 1989 -- valid -- Subalpine Mallomys
  Mallomys rothschildi Thomas, 1898 -- valid -- Rothschild's Mallomys
  Malpaisomys Hutterer, Lopez-Martinez and Michaux, 1988 -- valid
  Malpaisomys insularis Hutterer, Lopez-Martinez and Michaux, 1988 -- valid -- Lava Mouse
  Mammalia Linnaeus, 1758 -- valid -- mammifères, mamífero, mammals
  Mandrillus Ritgen, 1824 -- valid -- Mandrill, Drill
  Mandrillus leucophaeus (F. Cuvier, 1807) -- valid -- Drill
  Mandrillus sphinx (Linnaeus, 1758) -- valid -- Mandrill
  Manidae Gray, 1821 -- valid
  Manis Linnaeus, 1758 -- valid
  Manis crassicaudata Gray, 1827 -- invalid -- Indian Pangolin
  Manis gigantea Illiger, 1815 -- invalid -- Giant Pangolin
  Manis javanica Desmarest, 1822 -- valid -- Sunda Pangolin, Malayan Pangolin
  Manis pentadactyla Linnaeus, 1758 -- valid -- Chinese Pangolin, Short-tailed Pangolin
  Manis temminckii Smuts, 1832 -- invalid -- Ground Pangolin, Cape pangolin
  Manis tetradactyla Linnaeus, 1766 -- invalid -- Long-tailed Pangolin
  Manis tricuspis Rafinesque, 1821 -- invalid -- Tree Pangolin, Common African Pangolin
  Margaretamys Musser, 1981 -- valid -- Margareta's Rats
  Margaretamys beccarii (Jentink, 1880) -- valid -- Spiny Lowland Margaretamys
  Margaretamys elegans Musser, 1981 -- valid -- Elegant Margaretamys
  Margaretamys parvus Musser, 1981 -- valid -- Lesser Margaretamys
  Margay glaucula nicaraguae J. A. Allen, 1919 -- invalid
  Marmosa Gray, 1821 -- valid -- mouse opossums
  Marmosa andersoni Pine, 1972 -- valid -- Heavy-browed Mouse Opossum, Anderson's Mouse Opossum
  Marmosa canescens (J. A. Allen, 1893) -- invalid -- Tlacuache-ratón gris
  Marmosa lepida (Thomas, 1888) -- valid -- Rufous Mouse Opossum
  Marmosa mexicana Merriam, 1897 -- valid -- Tlacuache-ratón mexicano, Mexican Mouse Opossum
  Marmosa murina (Linnaeus, 1758) -- valid -- Linnaeus's Mouse Opossum, Murine Mouse Opossum
  Marmosa robinsoni Bangs, 1898 -- valid -- Robinson's Mouse Opossum
  Marmosa rubra Tate, 1931 -- valid -- Red Mouse Opossum
  Marmosa tyleriana Tate, 1931 -- valid -- Tyleria Mouse Opossum
  Marmosa xerophila Handley and Gordon, 1979 -- valid -- Guajira Mouse Opossum, Dryland Mouse Opossum
  Marmosops Matschie, 1916 -- valid
  Marmosops cracens (Handley and Gordon, 1979) -- invalid -- Narrow-headed Slender Opossum
  Marmosops dorothea (Thomas, 1911) -- invalid -- Dorothys' Slender Opossum
  Marmosops fuscatus (Thomas, 1896) -- valid -- Dusky Slender Opossum
  Marmosops handleyi (Pine, 1981) -- valid -- Handley's Slender Opossum
  Marmosops impavidus (Tschudi, 1845) -- invalid -- Tschudi's Slender Opossum
  Marmosops incanus (Lund, 1840) -- valid -- Gray Slender Opossum
  Marmosops invictus (Goldman, 1912) -- valid -- Panama Slender Opossum
  Marmosops noctivagus (Tschudi, 1844) -- valid -- White-bellied Slender Opossum
  Marmosops parvidens (Tate, 1931) -- valid -- Delicate Slender Opossum
  Marmota Blumenbach, 1779 -- valid -- Marmots
  Marmota baibacina Kastschenko, 1899 -- valid -- Gray Marmot
  Marmota bobak (Müller, 1776) -- valid -- Bobak Marmot
  Marmota broweri Hall and Gilmore, 1934 -- valid -- Alaska Marmot
  Marmota caligata (Eschscholtz, 1829) -- valid -- Hoary Marmot
  Marmota caligata caligata (Eschscholtz, 1829) -- valid
  Marmota camtschatica (Pallas, 1811) -- valid -- Black-capped Marmot
  Marmota caudata (Geoffroy, 1844) -- valid -- Long-tailed Marmot
  Marmota flaviventris (Audubon and Bachman, 1841) -- valid -- Yellow-bellied Marmot
  Marmota himalayana (Hodgson, 1841) -- valid -- Himalayan Marmot
  Marmota marmota (Linnaeus, 1758) -- valid -- Alpine Marmot
  Marmota menzbieri (Kashkarov, 1925) -- valid -- Menzbier's Marmot
  Marmota monax (Linnaeus, 1758) -- valid -- marmotte commune, Woodchuck, Groundhog
  Marmota olympus (Merriam, 1898) -- valid -- Olympic Marmot
  Marmota sibirica (Radde, 1862) -- valid -- Tarbagan Marmot
  Marmota vancouverensis Swarth, 1911 -- valid -- Vancouver Marmot, Vancouver Island Marmot
  Marsupialia Illiger, 1811 -- invalid -- marsupiaux, marsupials
  Martes Pinel, 1792 -- valid -- martens
  Martes americana (Turton, 1806) -- valid -- American Marten, martre d'Amérique, Marten
  Martes flavigula (Boddaert, 1785) -- valid -- Yellow-throated Marten
  Martes flavigula chrysospila Swinhoe, 1866 -- valid -- Formosan Yellow-throated Marten
  Martes flavigula flavigula (Boddaert, 1785) -- valid
  Martes foina (Erxleben, 1777) -- valid -- Beech Marten, Stone Marten
  Martes gwatkinsii Horsfield, 1851 -- valid -- Nilgiri Marten
  Martes martes (Linnaeus, 1758) -- valid -- European Pine Marten
  Martes melampus (Wagner, 1840) -- valid -- Japanese Marten
  Martes pennanti (Erxleben, 1777) -- invalid -- Fisher, pékan
  Martes zibellina (Linnaeus, 1758) -- valid -- Sable
  Massoutiera Lataste, 1885 -- valid
  Massoutiera mzabi (Lataste, 1881) -- valid -- Mzab Gundi
  Mastomys Thomas, 1915 -- valid -- Multimammate Mice
  Mastomys angolensis (Bocage, 1890) -- invalid
  Mastomys coucha (A. Smith, 1834) -- valid -- Southern African Mastomys
  Mastomys erythroleucus (Temminck, 1853) -- valid -- Reddish-white Mastomys
  Mastomys hildebrandtii (Peters, 1878) -- invalid
  Mastomys natalensis (A. Smith, 1834) -- valid -- Natal Mastomys, Coucha Rat, Multimammate Rat
  Mastomys pernanus (Kershaw, 1921) -- valid -- Dwarf Mastomys
  Mastomys shortridgei (St. Leger, 1933) -- valid -- Shortridge's Mastomys
  Mastomys verheyeni Robbins and Van der Straeten, 1989 -- invalid
  Maxomys Sody, 1936 -- valid -- Oriental Spiny Rats
  Maxomys alticola (Thomas, 1888) -- valid -- Bornean Mountain Maxomys
  Maxomys baeodon (Thomas, 1894) -- valid -- Small Bornean Maxomys
  Maxomys bartelsii (Jentink, 1910) -- valid -- Bartels's Javan Maxomys
  Maxomys dollmani (Ellerman, 1941) -- valid -- Dollman's Sulawesi Maxomys
  Maxomys hellwaldii (Jentink, 1878) -- valid -- Hellwald's Sulawesi Maxomys
  Maxomys hylomyoides (Robinson and Kloss, 1916) -- valid -- Sumatran Mountain Maxomys
  Maxomys inas (Bonhote, 1906) -- valid -- Malayan Mountain Maxomys
  Maxomys inflatus (Robinson and Kloss, 1916) -- valid -- Broad-nosed Sumatran Maxomys
  Maxomys moi (Robinson and Kloss, 1922) -- valid -- Indochinese Mountain Maxomys
  Maxomys musschenbroekii (Jentink, 1879) -- valid -- Musschenbroek's Sulawesi Maxomys, Musschenbroek's Rat
  Maxomys ochraceiventer (Thomas, 1894) -- valid -- Ochraceous-bellied Bornean Maxomys
  Maxomys pagensis (Miller, 1903) -- valid -- Mentawai Archipelago Maxomys
  Maxomys panglima (Robinson, 1921) -- valid -- Palawan Maxomys
  Maxomys rajah (Thomas, 1894) -- valid -- Rajah Sundaic Maxomys, Rajah Rat
  Maxomys surifer (Miller, 1900) -- valid -- Indomalayan Maxomys
  Maxomys wattsi Musser, 1991 -- valid -- Watts's Sulawesi Maxomys
  Maxomys whiteheadi (Thomas, 1894) -- valid -- Whitehead's Sundaic Maxomys
  Mayermys Laurie and Hill, 1954 -- invalid
  Mayermys ellermani Laurie and Hill, 1954 -- invalid
  Mazama Rafinesque, 1817 -- valid -- brockets
  Mazama americana (Erxleben, 1777) -- valid -- red brocket, South American Red Brocket
  Mazama bricenii Thomas, 1908 -- valid -- Mérida Brocket, Merioa brocket
  Mazama chunyi Hershkovitz, 1959 -- valid -- dwarf brocket, Dwarf Brocket
  Mazama gouazoupira (G. Fischer, 1814) -- invalid -- South American Brown Brocket, gray brocket
  Mazama nana (Hensel, 1872) -- valid -- pygmy brocket, Southern Bororó
  Mazama rufina (Bourcier and Pucheran, 1852) -- valid -- Ecuador Red Brocket, little red brocket
  Megachiroptera Dobson, 1875 -- invalid
  Megadendromus Dieterlen and Rupp, 1978 -- valid
  Megadendromus nikolausi Dieterlen and Rupp, 1978 -- valid -- Nikolaus's mouse, Nikolaus's African Climbing Mouse
  Megaderma É. Geoffroy Saint-Hilaire, 1810 -- valid
  Megaderma lyra É. Geoffroy Saint-Hilaire, 1810 -- invalid -- Greater False Vampire Bat
  Megaderma spasma (Linnaeus, 1758) -- valid -- Lesser False Vampire Bat
  Megadermatidae H. Allen, 1864 -- valid -- False-vampires
  Megadontomys Merriam, 1898 -- valid -- Giant Deer Mice
  Megadontomys cryophilus (Musser, 1964) -- valid -- Oaxaca giant deer mouse, Oaxacan Big-toothed Deermouse
  Megadontomys nelsoni (Merriam, 1898) -- valid -- Nelson's giant deer mouse, Nelson's Big-toothed Deermouse
  Megadontomys thomasi (Merriam, 1898) -- valid -- Thomas's giant deer mouse, Thomas's Big-toothed Deermouse, Thomas' Deer Mouse
  Megaerops Peters, 1865 -- valid
  Megaerops ecaudatus (Temminck, 1837) -- valid -- Temminck's Tailless Fruit Bat
  Megaerops kusnotoi Hill and Boeadi, 1978 -- valid -- Javan Tailless Fruit Bat
  Megaerops niphanae Yenbutra and Felten, 1983 -- valid -- Ratanaworabhan's Fruit Bat, Ratanaworabhan's Tailless Fruit Bat
  Megaerops wetmorei Taylor, 1934 -- invalid -- White-collared Fruit Bat
  Megaladapidae Major, 1893 -- invalid
  Megaloglossus Pagenstecher, 1885 -- valid
  Megaloglossus woermanni Pagenstecher, 1885 -- valid -- Woermann's bat, Woermann's Long-tongued Fruit Bat, Eastern Woermann's Fruit Bat
  Megalomys Trouessart, 1881 -- valid -- West Indian Giant Rice Rats
  Megalomys desmarestii (Fischer, 1829) -- valid -- Antillean Giant Rice Rat, Desmarest's Pilorie
  Megalomys luciae (Forsyth Major, 1901) -- valid -- Santa Lucia Giant Rice Rat, Santa Lucian Pilorie
  Megalonychidae Ameghino, 1889 -- valid -- Two-toed Sloths
  Megaptera Gray, 1846 -- valid -- humpback whales
  Megaptera nodosa (Bonnaterre, 1789) -- invalid
  Megaptera novaeangliae (Borowski, 1781) -- valid -- Humpback Whale, rorqual à bosse, Ballena jorobada
  Megasorex Hibbard, 1950 -- valid
  Megasorex gigas (Merriam, 1897) -- valid -- Mexican Shrew
  Melanomys Thomas, 1902 -- valid -- Dark Rice Rats
  Melanomys caliginosus (Tomes, 1860) -- valid -- Dusky Melanomys, Dusky Rice Rat
  Melanomys robustulus Thomas, 1914 -- valid -- Robust Dark Rice Rat, Robust Melanomys
  Melanomys zunigae (Sanborn, 1949) -- valid -- Zuniga's dark rice rat, Zuniga's Melanomys
  Melasmothrix Miller and Hollister, 1921 -- valid
  Melasmothrix naso Miller and Hollister, 1921 -- valid -- Diurnal Sulawesian Shrew Rat
  Meles Boddaert, 1785 -- invalid
  Meles meles (Linnaeus, 1758) -- valid -- European Badger
  Melinae Bonaparte, 1838 -- valid -- Eurasian badgers, hog-badgers
  Mellivora Storr, 1780 -- valid
  Mellivora capensis (Schreber, 1776) -- valid -- Honey Badger, Ratel
  Mellivorinae Gray, 1865 -- valid -- honey badgers
  Melogale I. Geoffroy Saint-Hilaire, 1831 -- valid -- ferret-badgers
  Melogale everetti (Thomas, 1895) -- valid -- Everett's Ferret-badger, Bornean Ferret-badger
  Melogale moschata (Gray, 1831) -- valid -- Chinese Ferret-badger, Small-toothed Ferret-badger
  Melogale orientalis (Horsfield, 1821) -- valid -- Javan Ferret-badger
  Melogale personata I. Geoffroy Saint-Hilaire, 1831 -- valid -- Burmese Ferret-badger, Large-toothed Ferret-badger
  Melomys Thomas, 1922 -- valid -- Mosaic-tailed Rats
  Melomys aerosus (Thomas, 1920) -- valid -- Dusky Seram Melomys
  Melomys bougainville Troughton, 1936 -- valid -- Bougainville Island Melomys
  Melomys burtoni (Ramsay, 1887) -- valid -- Grassland Melomys
  Melomys capensis Tate, 1951 -- valid -- Cape York Melomys
  Melomys cervinipes (Gould, 1852) -- valid -- Fawn-footed Melomys
  Melomys fellowsi Hinton, 1943 -- invalid
  Melomys fraterculus (Thomas, 1920) -- valid -- Manusela Melomys
  Melomys gracilis (Thomas, 1906) -- invalid
  Melomys lanosus Thomas, 1922 -- invalid
  Melomys leucogaster (Jentink, 1908) -- valid -- White-bellied Melomys
  Melomys levipes (Thomas, 1897) -- invalid
  Melomys lorentzii (Jentink, 1908) -- invalid
  Melomys mollis (Thomas, 1913) -- invalid
  Melomys moncktoni (Thomas, 1904) -- invalid
  Melomys obiensis (Thomas, 1911) -- valid -- Obi Island Melomys
  Melomys platyops (Thomas, 1906) -- invalid
  Melomys rattoides Thomas, 1922 -- invalid
  Melomys rubex Thomas, 1922 -- invalid
  Melomys rubicola Thomas, 1924 -- valid -- Bramble Cay Melomys
  Melomys rufescens (Alston, 1877) -- valid -- Black-tailed Melomys
  Melomys spechti Flannery and Wickler, 1990 -- valid -- Buka Island Melomys
  Melonycteris Dobson, 1877 -- valid
  Melonycteris aurantius Phillips, 1966 -- invalid -- Orange Fruit Bat
  Melonycteris melanops Dobson, 1877 -- valid -- Black-bellied Fruit Bat, Black-bellied Blossom Bat
  Melonycteris woodfordi (Thomas, 1887) -- invalid -- Woodford's Fruit Bat
  Melursus Meyer, 1793 -- valid -- Sloth Bear
  Melursus ursinus (Shaw, 1791) -- valid -- Sloth Bear
  Menetes Thomas, 1908 -- valid
  Menetes berdmorei (Blyth, 1849) -- valid -- Indochinese Ground Squirrel
  Mephitidae Bonaparte, 1845 -- valid -- skunks
  Mephitinae Bonaparte, 1845 -- invalid
  Mephitis É. Geoffroy Saint-Hilaire and F. G. Cuvier, 1795 -- valid -- hooded skunks, striped skunks
  Mephitis macroura Lichtenstein, 1832 -- valid -- Hooded Skunk, Zorrillo-listado del sur
  Mephitis mephitis (Schreber, 1776) -- valid -- Striped Skunk, mouffette rayée, Zorrillo-listado del norte
  Meriones Illiger, 1811 -- valid -- Jirds
  Meriones arimalius Cheesman and Hinton, 1924 -- valid -- Arabian Jird
  Meriones chengi Wang, 1964 -- valid -- Cheng's Jird
  Meriones crassus Sundevall, 1842 -- valid -- Sundevall's Jird
  Meriones dahli Shidlovsky, 1962 -- valid -- Dahl's Jird
  Meriones hurrianae Jordon, 1867 -- valid -- Indian Desert Jird, Indian Desert Gerbil
  Meriones libycus Lichtenstein, 1823 -- valid -- Libyan Jird
  Meriones meridianus (Pallas, 1773) -- valid -- Mid-day Jird, Midday Jird, Midday Gerbil, Little Chinese Jird
  Meriones persicus (Blanford, 1875) -- valid -- Persian Jird
  Meriones rex Yerbury and Thomas, 1895 -- valid -- King Jird
  Meriones sacramenti Thomas, 1922 -- valid -- Buxton's Jird
  Meriones shawi (Duvernoy, 1842) -- valid -- Shaw's Jird
  Meriones tamariscinus (Pallas, 1773) -- valid -- Tamarisk Jird, Tamarisk Gerbil
  Meriones tristrami Thomas, 1892 -- valid -- Tristram's Jird
  Meriones unguiculatus (Milne-Edwards, 1867) -- valid -- Mongolian Jird, Clawed Jird
  Meriones vinogradovi Heptner, 1931 -- valid -- Vinogradov's Jird
  Meriones zarudnyi Heptner, 1937 -- valid -- Zarudny's Jird
  Mesechinus Ognev, 1951 -- valid
  Mesechinus dauuricus (Sundevall, 1842) -- valid -- Daurian Hedgehog
  Mesechinus hughi (Thomas, 1908) -- valid -- Hugh's Forest Hedgehog, Hugh's Hedgehog
  Mesembriomys Palmer, 1906 -- valid -- Tree Rats
  Mesembriomys gouldii (Gray, 1843) -- valid -- Black-footed Mesembriomys
  Mesembriomys macrurus (Peters, 1876) -- valid -- Golden-backed Mesembriomys
  Mesocapromys Varona, 1970 -- valid
  Mesocapromys angelcabrerai (Varona, 1979) -- valid -- Cabrera's Hutia
  Mesocapromys auritus (Varona, 1970) -- valid -- Large-eared Hutia, Eared Hutia
  Mesocapromys nanus (G. M. Allen, 1917) -- valid -- Dwarf Hutia
  Mesocapromys sanfelipensis (Varona and Garrido, 1970) -- valid -- San Felipe Hutia
  Mesocricetus Nehring, 1898 -- valid -- Golden Hamsters
  Mesocricetus auratus (Waterhouse, 1839) -- valid -- Golden Hamster
  Mesocricetus brandti (Nehring, 1898) -- valid -- Brandt's Hamster
  Mesocricetus newtoni (Nehring, 1898) -- valid -- Romanian Hamster
  Mesocricetus raddei (Nehring, 1894) -- valid -- Ciscaucasian Hamster
  Mesomys Wagner, 1845 -- valid
  Mesomys didelphoides (Desmarest, 1817) -- invalid
  Mesomys hispidus (Desmarest, 1817) -- valid -- Ferreira's Spiny Tree-rat
  Mesomys leniceps Thomas, 1926 -- valid -- Woolly-headed Spiny Tree-rat, Long-haired Spiny Tree-rat
  Mesomys obscurus (Wagner, 1840) -- invalid
  Mesomys stimulax Thomas, 1911 -- valid -- Pará Spiny Tree-rat
  Mesophylla Thomas, 1901 -- valid
  Mesophylla macconnelli Thomas, 1901 -- valid -- MacConnell's Bat
  Mesoplodon Gervais, 1850 -- valid -- beaked whales
  Mesoplodon bidens (Sowerby, 1804) -- valid -- North Atlantic beaked whale, Sowerby's Beaked Whale
  Mesoplodon bowdoini Andrews, 1908 -- valid -- Andrew's Beaked Whale
  Mesoplodon carlhubbsi Moore, 1963 -- valid -- arch-beaked whale, archbeaked whale, Hubbs' Beaked Whale, Hubbs's Beaked Whale, Ballena-picuda de Hubb
  Mesoplodon densirostris (Blainville, 1817) -- valid -- dense-beaked whale, Blainville's Beaked Whale, densebeak whale, Ballena-picuda de Blainsville
  Mesoplodon europaeus (Gervais, 1855) -- valid -- Gervais' Beaked Whale, Gervais's Beaked Whale, Antillean beaked whale
  Mesoplodon ginkgodens Nishiwaki and Kamiya, 1958 -- valid -- ginkgo-toothed whale, Ginkgo-toothed Beaked Whale, Ballena-picuda japonesa
  Mesoplodon grayi von Haast, 1876 -- valid -- Gray's Beaked Whale, Haast's beaked whale, scamper-down whale
  Mesoplodon hectori (Gray, 1871) -- valid -- Hector's Beaked Whale
  Mesoplodon layardii (Gray, 1865) -- valid -- Strap-toothed Whale, Layard's beaked whale, strap-toothed beaked whale
  Mesoplodon mirus True, 1913 -- valid -- True's Beaked Whale
  Mesoplodon pacificus Longman, 1926 -- invalid
  Mesoplodon peruvianus Reyes, Mead and Van Waerebeek, 1991 -- valid -- Peruvian beaked whale, Ballena-picuda peruana, Pygmy Beaked Whale
  Mesoplodon stejnegeri True, 1885 -- valid -- Stejneger's Beaked Whale, Bering Sea beaked whale
  Metachirus Burmeister, 1854 -- valid -- brown four-eyed opossum
  Metachirus nudicaudatus (É. Geoffroy Saint-Hilaire, 1803) -- valid -- Tlacuache-cuatrojos café, Brown Four-eyed Opossum, Guianan Brown Four-eyed Opossum
  Micoureus Lesson, 1842 -- invalid
  Micoureus alstoni (J. A. Allen, 1900) -- invalid -- Alston's Mouse Opossum
  Micoureus constantiae (Thomas, 1904) -- invalid -- White-bellied Woolly Mouse Opossum
  Micoureus demerarae (Thomas, 1905) -- invalid -- Woolly Mouse Opossum
  Micoureus regina (Thomas, 1898) -- invalid -- Bare-tailed Woolly Mouse Opossum
  Microbiotheria Ameghino, 1889 -- valid -- Monito del Monte
  Microbiotheriidae Ameghino, 1887 -- valid
  Microcavia H. Gervais and Ameghino, 1880 -- valid
  Microcavia australis (I. Geoffroy Saint-Hilaire and d'Orbigny, 1833) -- valid -- Southern Mountain Cavy
  Microcavia niata (Thomas, 1898) -- valid -- Andean Mountain Cavy, Northern Mountain Cavy
  Microcavia shiptoni (Thomas, 1925) -- valid -- Shipton's Mountain Cavy
  Microcebus É. Geoffroy Saint-Hilaire, 1834 -- valid -- mouse lemurs
  Microcebus coquereli (A. Grandidier, 1867) -- invalid
  Microcebus murinus (J. F. Miller, 1777) -- valid -- Gray Mouse Lemur
  Microcebus rufus (Lesson, 1840) -- valid -- Brown Mouse Lemur, Eastern Rufous Mouse Lemur, Rufous Mouse Lemur
  Microchiroptera Dobson, 1875 -- invalid
  Microdillus Thomas, 1910 -- valid
  Microdillus peeli (de Winton, 1898) -- valid -- Somali Pygmy Gerbil
  Microdipodops Merriam, 1891 -- valid -- Kangaroo Mice
  Microdipodops megacephalus Merriam, 1891 -- valid -- Dark Kangaroo Mouse
  Microdipodops pallidus Merriam, 1901 -- valid -- Pale Kangaroo Mouse
  Microgale Thomas, 1882 -- valid
  Microgale brevicaudata G. Grandidier, 1899 -- valid -- Short-tailed Shrew Tenrec
  Microgale cowani Thomas, 1882 -- valid -- Cowan's Shrew Tenrec
  Microgale dobsoni Thomas, 1884 -- invalid -- Dobson's Shrew Tenrec
  Microgale dryas Jenkins, 1992 -- valid -- Dryad Shrew Tenrec, tree shrew tenrec
  Microgale gracilis (Major, 1896) -- valid -- Gracile Shrew Tenrec
  Microgale longicaudata Thomas, 1882 -- valid -- Lesser Long-tailed Shrew Tenrec
  Microgale parvula G. Grandidier, 1934 -- valid -- Pygmy Shrew Tenrec
  Microgale principula Thomas, 1926 -- valid -- Greater Long-tailed Shrew Tenrec
  Microgale pulla Jenkins, 1988 -- invalid -- dark shrew tenrec
  Microgale pusilla Major, 1896 -- valid -- Least Shrew Tenrec
  Microgale talazaci Major, 1896 -- invalid -- Talazac's Shrew Tenrec
  Microgale thomasi Major, 1896 -- valid -- Thomas's Shrew Tenrec
  Microhydromys Tate and Archbold, 1941 -- valid -- Lesser Shrew Mice
  Microhydromys musseri Flannery, 1989 -- invalid -- Torricelli Mountains Shrew Mouse
  Microhydromys richardsoni Tate and Archbold, 1941 -- valid -- Richardson's Shrew Mouse, northern groovetoothed moss-mouse
  Micromys Dehne, 1841 -- valid
  Micromys minutus (Pallas, 1771) -- valid -- Harvest Mouse
  Micronycteris Gray, 1866 -- valid -- big-eared bats
  Micronycteris behnii (Peters, 1865) -- invalid
  Micronycteris brachyotis (Dobson, 1879) -- invalid -- Yellow-throated Big-eared Bat
  Micronycteris daviesi (Hill, 1964) -- invalid -- Davies's Big-eared Bat
  Micronycteris hirsuta (Peters, 1869) -- valid -- Hairy Big-eared Bat
  Micronycteris megalotis (Gray, 1842) -- valid -- Little Big-eared Bat
  Micronycteris minuta (Gervais, 1856) -- valid -- White-bellied Big-eared Bat, Tiny Big-eared Bat
  Micronycteris nicefori Sanborn, 1949 -- invalid -- Niceforo's Big-eared Bat
  Micronycteris pusilla Sanborn, 1949 -- invalid -- Least Big-eared Bat
  Micronycteris schmidtorum Sanborn, 1935 -- valid -- Schmidts's Big-eared Bat, Schmidt's Big-eared Bat, Schmidts' Big-eared Bat
  Micronycteris sylvestris (Thomas, 1896) -- invalid -- Tri-colored Big-eared Bat
  Microperoryctes Stein, 1932 -- valid -- New Guinean mouse bandicoot, striped bandicoots, mouse bandicoots
  Microperoryctes longicauda (Peters and Doria, 1876) -- valid -- Striped Bandicoot
  Microperoryctes murina Stein, 1932 -- valid -- Mouse Bandicoot
  Microperoryctes papuensis (Laurie, 1952) -- valid -- Papuan Bandicoot
  Micropotamogale Heim de Balsac, 1954 -- valid
  Micropotamogale lamottei Heim de Balsac, 1954 -- valid -- Nimba Otter Shrew, Nimba Otter-shrew
  Micropotamogale ruwenzorii (de Witte and Frechkop, 1955) -- valid -- Ruwenzori Otter Shrew
  Micropteropus Matschie, 1899 -- invalid
  Micropteropus intermedius Hayman, 1963 -- invalid -- Hayman's Dwarf Epauletted Fruit Bat, Hayman's Lesser Epauletted Fruit Bat
  Micropteropus pusillus (Peters, 1868) -- invalid -- Peters's Dwarf Epauletted Fruit Bat, Peters's Lesser Epauletted Fruit Bat
  Microryzomys Thomas, 1917 -- valid -- Small Rice Rats
  Microryzomys altissimus (Osgood, 1933) -- valid -- Highland Small Rice Rat, Páramo Colilargo
  Microryzomys minutus (Tomes, 1860) -- valid -- Forest Small Rice Rat, Montane Colilargo
  Microsciurus J. A. Allen, 1895 -- valid -- Dwarf Squirrels
  Microsciurus alfari (J. A. Allen, 1895) -- valid -- Central American Dwarf Squirrel
  Microsciurus flaviventer (Gray, 1867) -- valid -- Amazon Dwarf Squirrel
  Microsciurus mimulus (Thomas, 1898) -- valid -- Western Dwarf Squirrel
  Microsciurus santanderensis (Hernández-Camacho, 1957) -- valid -- Santander Dwarf Squirrel
  Microsorex Coues, 1877 -- invalid
  Microsorex hoyi (Baird, 1857) -- invalid
  Microtus Schrank, 1798 -- valid -- Meadow Mice, Meadow Voles
  Microtus abbreviatus Miller, 1899 -- valid -- St. Matthews Island vole, Insular Vole
  Microtus agrestis (Linnaeus, 1761) -- valid -- Field Vole
  Microtus arvalis (Pallas, 1779) -- valid -- Common Vole
  Microtus bavaricus Konig, 1962 -- valid -- Bavarian Pine Vole
  Microtus breweri (Baird, 1857) -- valid -- Beach Vole
  Microtus cabrerae Thomas, 1906 -- valid -- Cabrera's Vole
  Microtus californicus (Peale, 1848) -- valid -- Amargosa Vole, Meteoro de California, California Vole
  Microtus californicus scirpensis Bailey, 1900 -- invalid -- Amargosa vole
  Microtus canicaudus Miller, 1897 -- valid -- Gray-tailed Vole
  Microtus chrotorrhinus (Miller, 1894) -- valid -- campagnol des rochers, Rock Vole
  Microtus coronarius Swarth, 1911 -- invalid -- Coronation Island vole
  Microtus daghestanicus (Shidlovsky, 1919) -- valid -- Daghestan Pine Vole, Caucasus Pine Vole
  Microtus duodecimcostatus (Selys-Longchamps, 1839) -- valid -- Mediterranean Pine Vole
  Microtus evoronensis Kovalskaya and Sokolov, 1980 -- valid -- Evorsk vole, Evoron Vole
  Microtus felteni Malec and Storch, 1963 -- valid -- Felten's vole, Balkan Pine Vole
  Microtus fortis Büchner, 1889 -- valid -- Reed Vole
  Microtus gerbei (Gerbe, 1879) -- valid -- Gerbe's Vole, Pyreneean Pine Vole
  Microtus gregalis (Pallas, 1779) -- valid -- Narrow-skulled Vole, Narrow-headed Vole
  Microtus guatemalensis Merriam, 1898 -- valid -- Guatemalan Vole
  Microtus guentheri (Danford and Alston, 1880) -- valid -- Guenther's Vole, Günther's Vole
  Microtus hyperboreus Vinogradov, 1934 -- invalid -- North Siberian Vole
  Microtus irani Thomas, 1921 -- valid -- Persian Vole, Iranian Vole
  Microtus irene (Thomas, 1911) -- invalid -- Chinese Scrub Vole
  Microtus juldaschi (Severtzov, 1879) -- invalid -- Juniper Vole
  Microtus kermanensis Roguin, 1988 -- invalid -- Baluchistan vole
  Microtus kirgisorum (Ognev, 1950) -- invalid -- Tien Shan vole
  Microtus leucurus (Blyth, 1863) -- invalid -- Blyth's Vole
  Microtus limnophilus Büchner, 1889 -- valid -- Lacustrine Vole
  Microtus longicaudus (Merriam, 1888) -- valid -- Coronation Island vole, Long-tailed Vole
  Microtus longicaudus coronarius Swarth, 1911 -- invalid -- Coronation Island vole
  Microtus longicaudus longicaudus (Merriam, 1888) -- invalid
  Microtus ludovicianus Bailey, 1900 -- invalid
  Microtus lusitanicus (Gerbe, 1879) -- valid -- Lusitanian Pine Vole
  Microtus majori Thomas, 1906 -- valid -- Major's Pine Vole
  Microtus maximowiczii (Schrenk, 1859) -- valid -- Maximowicz's Vole
  Microtus mexicanus (Saussure, 1861) -- valid -- Meteoro mexicano, Mexican Vole
  Microtus mexicanus hualpaiensis Goldman, 1938 -- invalid -- Haulapai Mexican vole
  Microtus middendorffi (Poliakov, 1881) -- valid -- Middendorf's vole, Middendorff's Vole
  Microtus miurus Osgood, 1901 -- valid -- Singing Vole
  Microtus mogollonensis (Mearns, 1890) -- invalid -- Mogollon vole
  Microtus mongolicus (Radde, 1862) -- valid -- Mongolian Vole
  Microtus montanus (Peale, 1848) -- valid -- Montane Vole
  Microtus montebelli (Milne-Edwards, 1872) -- valid -- Japanese Grass Vole
  Microtus mujanensis Orlov and Kovalskaya, 1978 -- valid -- Muisk Vole, Muya Valley Vole
  Microtus multiplex (Fatio, 1905) -- valid -- Alpine Pine Vole
  Microtus nasarovi (Shidlovsky, 1938) -- invalid -- Nasarov's vole
  Microtus nesophilus Bailey, 1898 -- invalid -- Gull Island vole
  Microtus oaxacensis Goodwin, 1966 -- valid -- Tarabundi vole, Tarabundí Vole
  Microtus obscurus (Eversmann, 1841) -- invalid -- Altai vole
  Microtus ochrogaster (Wagner, 1842) -- valid -- Prairie Vole
  Microtus oeconomus (Pallas, 1776) -- valid -- Root Vole, Tundra Vole
  Microtus oregoni (Bachman, 1839) -- valid -- Creeping Vole
  Microtus parvulus (A. H. Howell, 1916) -- invalid
  Microtus pennsylvanicus (Ord, 1815) -- valid -- campagnol des champs, Meteoro de prado, Meadow Vole
  Microtus pennsylvanicus chihuahuensis Bradley and Cockrum, 1968 -- invalid
  Microtus pennsylvanicus dukecampbelli Woods, Post and Kilpatrick, 1982 -- invalid -- Florida salt marsh vole
  Microtus pinetorum (Le Conte, 1830) -- valid -- campagnol sylvestre, Woodland Vole, Pine Vole
  Microtus quasiater (Coues, 1874) -- valid -- Jalapan Vole, Jalapan Pine Vole
  Microtus ratticeps (Keyserling and Blasius, 1841) -- invalid
  Microtus richardsoni (DeKay, 1842) -- valid -- Water Vole, North American Water Vole
  Microtus rossiaemeridionalis Ognev, 1924 -- invalid -- Southern Vole
  Microtus sachalinensis Vasin, 1955 -- valid -- Sakhalin vole, Sakhalin Island Vole
  Microtus savii (Selys-Longchamps, 1838) -- valid -- Savi's Pine Vole
  Microtus schelkovnikovi (Satunin, 1907) -- valid -- Schelkovnikov's Pine Vole
  Microtus sikimensis (Hodgson, 1849) -- invalid -- Sikkim Vole
  Microtus socialis (Pallas, 1773) -- valid -- Social Vole
  Microtus subterraneus (Selys-Longchamps, 1836) -- valid -- Common Pine Vole, European Pine Vole
  Microtus tatricus Kratochvíl, 1952 -- valid -- Tatra Pine Vole, Tatra Vole
  Microtus thomasi (Barrett-Hamilton, 1903) -- valid -- Thomas's Pine Vole
  Microtus townsendii (Bachman, 1839) -- valid -- Townsend's Vole
  Microtus transcaspicus Satunin, 1905 -- valid -- Middle East Vole, Transcaspian Vole
  Microtus umbrosus Merriam, 1898 -- valid -- Zempoaltépec Vole
  Microtus xanthognathus (Leach, 1815) -- valid -- Taiga Vole, Yellow-cheeked Vole
  Millardia Thomas, 1911 -- valid -- Asian Soft-furred Rats
  Millardia gleadowi (Murray, 1886) -- valid -- Sand-colored Metad, Sand-coloured Rat
  Millardia kathleenae Thomas, 1914 -- valid -- Miss Ryley's Soft-furred Field Rat, Burmese Metad
  Millardia kondana Mishra and Dhanda, 1975 -- valid -- Large Metad
  Millardia meltada (Gray, 1837) -- valid -- Common Metad, Soft-furred Field Rat
  Mimetillus Thomas, 1904 -- valid
  Mimetillus moloneyi (Thomas, 1891) -- valid -- Moloney's flat-headed bat, Moloney's Mimic Bat, Moloney's Flat-Headed Vesper Bat
  Mimon Gray, 1847 -- valid -- golden bats
  Mimon bennettii (Gray, 1838) -- valid -- Southern Golden Bat
  Mimon crenulatum (E. Geoffroy, 1803) -- invalid -- Striped Hairy-nosed Bat
  Miniopterinae Dobson, 1875 -- invalid
  Miniopterus Bonaparte, 1837 -- valid
  Miniopterus australis Tomes, 1858 -- valid -- Little Long-fingered Bat
  Miniopterus fraterculus Thomas and Schwann, 1906 -- valid -- Lesser Long-fingered Bat
  Miniopterus fuscus Bonhote, 1902 -- valid -- Southeast Asian Long-fingered Bat, Ryukyu Long-fingered Bat
  Miniopterus inflatus Thomas, 1903 -- valid -- Greater Long-fingered Bat
  Miniopterus magnater Sanborn, 1931 -- valid -- Western Bent-winged Bat, Western Long-fingered Bat, Large Long-fingered Bat
  Miniopterus minor Peters, 1867 -- valid -- Least Long-fingered Bat
  Miniopterus pusillus Dobson, 1876 -- valid -- Small Bent-winged Bat, Small Long-fingered Bat
  Miniopterus robustior Revilliod, 1914 -- valid -- Loyalty Bent-winged Bat, Loyalty Long-fingered Bat
  Miniopterus schreibersi (Kuhl, 1817) -- invalid -- Schreibers's Long-fingered Bat
  Miniopterus tristis (Waterhouse, 1845) -- valid -- Great Bent-winged Bat, Great Long-fingered Bat
  Miopithecus I. Geoffroy Saint-Hilaire, 1842 -- valid -- talapoins
  Miopithecus talapoin (Schreber, 1774) -- valid -- Southern Talapoin Monkey, Angolan Talapoin
  Mirounga Gray, 1827 -- valid -- elephant seals
  Mirounga angustirostris (Gill, 1866) -- valid -- Northern Elephant Seal, northern sea elephant, Elefante-marino norteño
  Mirounga leonina (Linnaeus, 1758) -- valid -- Southern Elephant Seal, southern sea elephant
  Mixocebus Peters, 1874 -- invalid
  Mogera Pomel, 1848 -- valid
  Mogera etigo Yoshiyuki and Imaizumi, 1991 -- valid -- Echigo Mole
  Mogera insularis (Swinhoe, 1863) -- valid -- Insular Mole
  Mogera kobeae Thomas, 1905 -- invalid -- Kobe Mole
  Mogera minor Kuroda, 1936 -- invalid -- Small Japanese Mole
  Mogera robusta Nehring, 1891 -- valid -- Large Mole, Ussuri Mole
  Mogera tokudae Kuroda, 1940 -- valid -- Sado Mole, Tokuda's Mole
  Mogera wogura (Temminck, 1842) -- valid -- Japanese Mole, Large Japanese Mole
  Molossidae Gervais, 1856 -- valid -- free-tailed bats
  Molossops Peters, 1866 -- valid
  Molossops abrasus (Temminck, 1827) -- invalid -- Cinnamon Dog-faced Bat
  Molossops aequatorianus Cabrera, 1917 -- invalid -- Equatorial Dog-faced Bat
  Molossops greenhalli (Goodwin, 1958) -- invalid -- Greenhall's Dog-faced Bat
  Molossops mattogrossensis Vieira, 1942 -- invalid -- Mato Grosso Dog-faced Bat
  Molossops neglectus Williams and Genoways, 1980 -- valid -- Rufous Dog-faced Bat
  Molossops planirostris (Peters, 1866) -- invalid -- Southern Dog-faced Bat
  Molossops temminckii (Burmeister, 1854) -- valid -- Dwarf Dog-faced Bat
  Molossus E. Geoffroy, 1805 -- valid -- velvety free-tailed bats, mastiff bats
  Molossus ater E. Geoffroy, 1805 -- invalid -- Black Mastiff Bat
  Molossus bondae J. A. Allen, 1904 -- valid -- Bonda Mastiff Bat
  Molossus molossus (Pallas, 1766) -- valid -- Pallas' Free-tailed Bat, Murciélago-mastín de Pallas, Pallas's Mastiff Bat
  Molossus pretiosus Miller, 1902 -- valid -- Miller's Mastiff Bat
  Molossus sinaloae J. A. Allen, 1906 -- valid -- Sinaloan Mastiff Bat
  Monachus Fleming, 1822 -- valid -- monk seals
  Monachus monachus (Hermann, 1779) -- valid -- Mediterranean Monk Seal
  Monachus schauinslandi Matschie, 1905 -- invalid -- Hawaiian Monk Seal
  Monachus tropicalis (Gray, 1850) -- invalid -- Caribbean Monk Seal, West Indian monk seal, Foca-monje del Caribe
  Monodelphis Burnett, 1830 -- valid -- short-tailed opossums
  Monodelphis adusta (Thomas, 1897) -- valid -- Sepia Short-tailed Opossum
  Monodelphis americana (P. L. S. Müller, 1776) -- valid -- Northern Three-striped Opossum
  Monodelphis brevicaudata (Erxleben, 1777) -- valid -- Northern Red-sided Opossum, Guyanan Short-tailed Opossum
  Monodelphis dimidiata (Wagner, 1847) -- valid -- Yellow-sided Opossum, Red-sided Short-tailed Opossum, Orange-sided Opossum, Shrewish Short-tailed Opossum
  Monodelphis domestica (Wagner, 1842) -- valid -- Gray Short-tailed Opossum
  Monodelphis emiliae (Thomas, 1912) -- valid -- Emilia's Short-tailed Opossum, Amazonian Short-tailed Opossum, Emilie's Short-tailed Opossum
  Monodelphis iheringi (Thomas, 1888) -- valid -- Ihering's Three-striped Opossum
  Monodelphis kunsi Pine, 1975 -- valid -- Pygmy Short-tailed Opossum
  Monodelphis maraxina Thomas, 1923 -- invalid -- Marajó Short-tailed Opossum
  Monodelphis osgoodi Doutt, 1938 -- valid -- Osgood's Short-tailed Opossum
  Monodelphis rubida (Thomas, 1899) -- invalid -- Chestnut-striped Opossum
  Monodelphis scalops (Thomas, 1888) -- valid -- Long-nosed Short-tailed Opossum, Tawny-headed Opossum
  Monodelphis sorex (Hensel, 1872) -- invalid -- Southern Red-sided Opossum
  Monodelphis theresa Thomas, 1921 -- invalid -- Southern Three-striped Opossum
  Monodelphis unistriata (Wagner, 1842) -- valid -- One-striped Opossum, Single-striped Opossum
  Monodon Linnaeus, 1758 -- valid -- narwhals
  Monodon monoceros Linnaeus, 1758 -- valid -- Narwhal, narval
  Monodontidae Gray, 1821 -- valid -- white whales
  Monophyllus Leach, 1821 -- valid -- Antillean long-tongued bats
  Monophyllus plethodon Miller, 1900 -- valid -- Insular Single Leaf Bat, Insular Long-tongued Bat, Insular Single-leaf Bat
  Monophyllus redmani Leach, 1821 -- valid -- Leach's Single Leaf Bat, Puerto Rican Long-tongued Bat, Leach's Single-leaf Bat
  Monotremata Bonaparte, 1837 -- valid -- monotremes
  Mops Lesson, 1842 -- valid
  Mops brachypterus (Peters, 1852) -- valid -- Sierra Leone Free-tailed Bat, Short-winged Free-tailed Bat
  Mops condylurus (A. Smith, 1833) -- valid -- Angolan Free-tailed Bat
  Mops congicus J. A. Allen, 1917 -- valid -- Medje Free-tailed Bat, Congo Free-tailed Bat
  Mops demonstrator (Thomas, 1903) -- valid -- Mongalla Free-tailed Bat, Mongallan Free-tailed Bat
  Mops midas (Sundevall, 1843) -- valid -- Midas Free-tailed Bat, Midas' Free-tailed Bat
  Mops mops (de Blainville, 1840) -- valid -- Malayan Free-tailed Bat
  Mops nanulus J. A. Allen, 1917 -- valid -- Dwarf Free-tailed Bat
  Mops niangarae J. A. Allen, 1917 -- valid -- Niangaran Free-tailed Bat, Niangara Free-tailed Bat
  Mops niveiventer Cabrera and Ruxton, 1926 -- valid -- White-bellied Free-tailed Bat
  Mops petersoni (El Rayah, 1981) -- valid -- Peterson's Free-tailed Bat
  Mops sarasinorum (A. Meyer, 1899) -- valid -- Sulawesi Free-tailed Bat, Sulawesian Free-tailed Bat
  Mops spurrelli (Dollman, 1911) -- valid -- Spurrell's Free-tailed Bat
  Mops thersites (Thomas, 1903) -- valid -- Railer Bat, Railer Free-tailed Bat
  Mops trevori J. A. Allen, 1917 -- valid -- Trevor's Free-tailed Bat
  Mormoopidae Saussure, 1860 -- valid -- ghost-faced bats, moustached bats, naked-backed bats
  Mormoops Leach, 1821 -- valid -- ghost-faced bats
  Mormoops blainvillii Leach, 1821 -- invalid -- Antillean Ghost-faced Bat
  Mormoops megalophylla (Peters, 1864) -- valid -- Ghost-faced Bat, Murciélago-barba arrugada norteño, Peters's Ghost-faced Bat
  Mormopterus Peters, 1865 -- valid
  Mormopterus acetabulosus (Hermann, 1804) -- valid -- Natal Free-tailed Bat, Mauritian Little Mastiff Bat
  Mormopterus beccarii Peters, 1881 -- invalid -- Beccari's Mastiff Bat
  Mormopterus doriae K. Andersen, 1907 -- valid -- Sumatran Mastiff Bat, Sumatran Little Mastiff Bat
  Mormopterus jugularis (Peters, 1865) -- valid -- Peters's Wrinkle-lipped Bat, Peters's Little Mastiff Bat
  Mormopterus kalinowskii (Thomas, 1893) -- valid -- Kalinowski's Mastiff Bat, Kalinowski's Little Mastiff Bat
  Mormopterus minutus (Miller, 1899) -- valid -- Little Goblin Bat, Least Little Mastiff Bat
  Mormopterus norfolkensis (Gray, 1840) -- invalid -- Eastern Little Mastiff Bat, East Coast Free-tailed Bat, Norfolk Island Freetailed Bat
  Mormopterus petrophilus (Roberts, 1917) -- invalid -- Roberts's Flat-headed Bat
  Mormopterus phrudus Handley, 1956 -- valid -- Incan Little Mastiff Bat
  Mormopterus planiceps (Peters, 1866) -- invalid -- Southern Free-tailed Bat, South-eastern Free-tailed Bat
  Mormopterus setiger Peters, 1878 -- invalid -- Peters's Flat-headed Bat
  Moschidae Gray, 1821 -- valid -- musk deer
  Moschiola Hodgson, 1843 -- invalid
  Moschiola meminna (Erxleben, 1777) -- valid -- Indian spotted chevrotain, Indian Spotted Chevrotain
  Moschus Linnaeus, 1758 -- valid
  Moschus berezovskii Flerov, 1929 -- valid -- Forest Musk Deer, Chinese forest musk deer
  Moschus chrysogaster (Hodgson, 1839) -- valid -- alpine musk deer, Alpine Musk Deer
  Moschus fuscus Li, 1981 -- valid -- Black Musk Deer, dusky musk deer
  Moschus moschiferus Linnaeus, 1758 -- valid -- Siberian musk deer, Siberian Musk Deer
  Mosia Gray, 1843 -- valid
  Mosia nigrescens Gray, 1843 -- valid -- Lesser Sheath-tailed Bat, Dark Sheath-tailed Bat
  Mungos É. Geoffroy Saint-Hilaire and F. Cuvier, 1795 -- valid
  Mungos gambianus (Ogilby, 1835) -- valid -- Gambian Mongoose
  Mungos mungo (Gmelin, 1788) -- valid -- Banded Mongoose
  Mungotictis Pocock, 1915 -- valid
  Mungotictis decemlineata (Grandidier, 1867) -- valid -- Narrow-striped Mongoose, Narrow-striped Boky
  Muntiacinae Knottnerus-Meyer, 1907 -- invalid
  Muntiacus Rafinesque, 1815 -- valid -- muntjaks
  Muntiacus atherodes Groves and Grubb, 1982 -- valid -- Bornean Yellow Muntjac, Bornean yellow muntjac
  Muntiacus crinifrons (Sclater, 1885) -- valid -- black muntjac, Black Muntjac
  Muntiacus feae (Thomas and Doria, 1889) -- valid -- Fea's Muntjac, Fea's muntjac
  Muntiacus gongshanensis Ma, 1990 -- valid -- Gongshan muntjac, Gongshan Muntjac
  Muntiacus muntjak (Zimmermann, 1780) -- valid -- Red Muntjac, Indian muntjac
  Muntiacus reevesi (Ogilby, 1839) -- valid -- Reeves's muntjac, Reeves' Muntjac
  Murexia Tate and Archbold, 1937 -- valid -- short-haired marsupial 'mice'
  Murexia longicaudata (Schlegel, 1866) -- valid -- Short-furred Dasyure
  Murexia rothschildi Tate, 1938 -- valid -- Broad-striped Dasyure
  Muriculus Thomas, 1903 -- valid
  Muriculus imberbis (Rüppell, 1842) -- valid -- Ethiopian Striped Mouse
  Muridae Illiger, 1811 -- valid -- campagnols, rats, souris, mice, rats, voles
  Murina Gray, 1842 -- valid
  Murina aenea Hill, 1964 -- valid -- Bronze Tube-nosed Bat
  Murina aurata A. Milne-Edwards, 1872 -- valid -- Little Tube-nosed Bat, Tibetan Tube-nosed Bat
  Murina cyclotis Dobson, 1872 -- valid -- Round-eared Tube-nosed Bat
  Murina florium Thomas, 1908 -- valid -- Flores Tube-nosed Bat, Flute-nosed Bat, Tube-nosed Insectivorous Bat
  Murina fusca Sowerby, 1922 -- valid -- Dusky Tube-nosed Bat
  Murina grisea Peters, 1872 -- invalid -- Peters's Tube-nosed Bat
  Murina huttoni (Peters, 1872) -- invalid -- Hutton's Tube-nosed Bat
  Murina leucogaster A. Milne-Edwards, 1872 -- valid -- Greater Tube-nosed Bat, Rufous Tube-nosed Bat
  Murina puta Kishida, 1924 -- valid -- Taiwanese Tube-nosed Bat, Taiwan Tube-nosed Bat
  Murina rozendaali Hill and Francis, 1984 -- valid -- Gilded Tube-nosed Bat
  Murina silvatica Yoshiyuki, 1983 -- invalid -- Forest Tube-nosed Bat
  Murina suilla (Temminck, 1840) -- valid -- Brown Tube-nosed Bat
  Murina tenebrosa Yoshiyuki, 1970 -- valid -- Gloomy Tube-nosed Bat, Tsushima Tube-nosed Bat
  Murina tubinaris (Scully, 1881) -- valid -- Scully's Tube-nosed Bat
  Murina ussuriensis Ognev, 1913 -- valid -- Ussuri Tube-nosed Bat, Ussurian Tube-nosed Bat
  Murinae Illiger, 1811 -- valid -- Old World rats, Old World mice
  Murininae Miller, 1907 -- valid -- tube-nosed bats
  Mus Linnaeus, 1758 -- valid -- House Mice, Old World Mice
  Mus baoulei (Vermeiren and Verheyen, 1980) -- valid -- Baoule's Mouse
  Mus booduga (Gray, 1837) -- valid -- Little Indian Field Mouse
  Mus bufo (Thomas, 1906) -- valid -- Toad Mouse
  Mus callewaerti (Thomas, 1925) -- valid -- Callewaert's Mouse
  Mus caroli Bonhote, 1902 -- valid -- Ryukyu Mouse
  Mus cervicolor Hodgson, 1845 -- valid -- Fawn-colored Mouse
  Mus cookii Ryley, 1914 -- valid -- Cook's Mouse
  Mus crociduroides (Robinson and Kloss, 1916) -- valid -- Sumatran Shrewlike Mouse
  Mus famulus Bonhote, 1898 -- valid -- Servant Mouse
  Mus fernandoni (Phillips, 1932) -- valid -- Ceylon Spiny Mouse
  Mus goundae F. Petter and Genest, 1970 -- valid -- Gounda Mouse
  Mus haussa (Thomas and Hinton, 1920) -- valid -- Hausa Mouse
  Mus indutus (Thomas, 1910) -- valid -- Desert Pygmy Mouse
  Mus kasaicus (Cabrera, 1924) -- invalid
  Mus macedonicus Petrov and Ruzic, 1983 -- valid -- Macedonian Mouse
  Mus mahomet Rhoads, 1896 -- valid -- Mahomet Mouse
  Mus mattheyi F. Petter, 1969 -- valid -- Matthey's Mouse
  Mus mayori (Thomas, 1915) -- valid -- Mayor's Mouse
  Mus minutoides A. Smith, 1834 -- valid -- Southern African Pygmy Mouse
  Mus musculoides Temminck, 1853 -- valid -- Subsaharan Pygmy Mouse
  Mus musculus Linnaeus, 1758 -- valid -- souris commune, House Mouse
  Mus neavei (Thomas, 1910) -- valid -- Neave's Mouse
  Mus orangiae (Roberts, 1926) -- valid -- Orange Mouse
  Mus oubanguii F. Petter and Genest, 1970 -- valid -- Oubangui Mouse
  Mus pahari Thomas, 1916 -- valid -- Indochinese Shrewlike Mouse, Sikkim Mouse
  Mus palustris Harlan, 1837 -- invalid
  Mus phillipsi Wroughton, 1912 -- valid -- Phillips's Mouse
  Mus platythrix Bennett, 1832 -- valid -- Flat-haired Mouse, Indian Brown Spiny Mouse
  Mus polionotus Wagner, 1843 -- invalid
  Mus saxicola Elliot, 1839 -- valid -- Saxicolous Mouse
  Mus setulosus Peters, 1876 -- valid -- Peters's Mouse
  Mus setzeri F. Petter, 1978 -- valid -- Setzer's Mouse
  Mus shortridgei (Thomas, 1914) -- valid -- Shortridge's Mouse
  Mus sorella (Thomas, 1909) -- valid -- Thomas's Mouse
  Mus spicilegus Petényi, 1882 -- valid -- Mound-building Mouse
  Mus spretus Lataste, 1883 -- valid -- Western Mediterranean Mouse
  Mus tenellus (Thomas, 1903) -- valid -- Delicate Mouse
  Mus terricolor Blyth, 1851 -- valid -- Earth-Colored mouse
  Mus triton (Thomas, 1909) -- valid -- Gray-bellied Mouse
  Mus volans Linnaeus, 1758 -- invalid
  Mus vulcani (Robinson and Kloss, 1919) -- valid -- Javan Shrew-like Mouse
  Muscardinus Kaup, 1829 -- valid
  Muscardinus avellanarius (Linnaeus, 1758) -- valid -- Hazel Dormouse, Common Dormouse
  Musonycteris Schaldach and McLaughlin, 1960 -- valid -- Banana Bat
  Musonycteris harrisoni Schaldach and McLaughlin, 1960 -- valid -- Banana Bat
  Mustela Linnaeus, 1758 -- valid -- polecats, ermines, ferrets, minks, weasels
  Mustela africana Desmarest, 1818 -- invalid -- Tropical Weasel, Amazon Weasel
  Mustela altaica Pallas, 1811 -- valid -- Mountain Weasel, Altai Mountain Weasel
  Mustela erminea Linnaeus, 1758 -- valid -- Ermine, hermine
  Mustela eversmannii Lesson, 1827 -- invalid
  Mustela felipei Izor and de la Torre, 1978 -- invalid -- Colombian Weasel, Don Felipe's Weasel
  Mustela frenata Lichtenstein, 1831 -- invalid -- Long-tailed Weasel, belette à longue queue, Comadreja cola larga
  Mustela kathiah Hodgson, 1835 -- valid -- Yellow-bellied Weasel
  Mustela lutreola (Linnaeus, 1761) -- valid -- European Mink
  Mustela lutreolina Robinson and Thomas, 1917 -- valid -- Indonesian Mountain Weasel
  Mustela lutris Linnaeus, 1758 -- invalid
  Mustela nigripes (Audubon and Bachman, 1851) -- valid -- Black-footed Ferret
  Mustela nivalis Linnaeus, 1766 -- valid -- Least Weasel, belette pygmée
  Mustela nudipes Desmarest, 1822 -- valid -- Malayan Weasel, Malay Weasel
  Mustela putorius Linnaeus, 1758 -- valid -- European Polecat
  Mustela sibirica Pallas, 1773 -- valid -- Siberian Weasel
  Mustela strigidorsa Gray, 1853 -- valid -- Back-striped Weasel, Stripe-backed Weasel
  Mustela vison Schreber, 1777 -- invalid -- American Mink, vison d'Amérique
  Mustelidae G. Fischer von Waldheim, 1817 -- valid -- mustelids
  Mustelinae G. Fischer von Waldheim, 1817 -- valid -- minks, polecats, ermines, ferrets, weasels
  Mycetes Illiger, 1811 -- invalid
  Mydaus F. G. Cuvier, 1821 -- valid
  Mydaus javanensis (Desmarest, 1820) -- valid -- Sunda Stink Badger, Indonesian Stink Badger
  Mydaus marchei Huet, 1887 -- valid -- Palawan Stink Badger, Skunk Badger
  Mylomys Thomas, 1906 -- valid
  Mylomys dybowskii (Pousargues, 1893) -- valid -- Common Mylomys
  Myocastor Kerr, 1792 -- valid -- nutrias
  Myocastor coypus (Molina, 1782) -- valid -- nutria, nutria, coypu, Coypu
  Myocastoridae Ameghino, 1902 -- invalid -- nutrias
  Myodes nigripes True, 1894 -- invalid
  Myoictis Gray, 1858 -- valid -- three-striped marsupial 'mouse', New Guinea striped dasyures
  Myoictis melas (S. Müller, 1840) -- valid -- three-striped marsupial 'mouse', Three-striped Dasyure, Müller's Three-striped Dasyure
  Myomimus Ognev, 1924 -- valid -- Mouse-tailed Dormice
  Myomimus personatus Ognev, 1924 -- valid -- Masked Mouse-tailed Dormouse
  Myomimus roachi (Bate, 1937) -- valid -- Roach's Mouse-tailed Dormouse
  Myomimus setzeri Rossolimo, 1976 -- valid -- Setzer's Mouse-tailed Dormouse
  Myomys Thomas, 1915 -- invalid
  Myomys albipes (Rüppell, 1842) -- invalid
  Myomys daltoni (Thomas, 1892) -- invalid
  Myomys derooi Van der Straeten and Verheyen, 1978 -- invalid
  Myomys fumatus (Peters, 1878) -- invalid
  Myomys ruppi (Van der Straeten and Dieterlen, 1983) -- invalid
  Myomys verreauxii (A. Smith, 1834) -- invalid
  Myomys yemeni Sanborn and Hoogstraal, 1953 -- invalid
  Myonycteris Matschie, 1899 -- valid
  Myonycteris brachycephala (Bocage, 1889) -- valid -- Sao Tomé collared fruit bat, São Tomé Collared Fruit Bat
  Myonycteris relicta Bergmans, 1980 -- valid -- East African little collared fruit bat, Bergmans's Collared Fruit Bat
  Myonycteris torquata (Dobson, 1878) -- valid -- Little Collared Fruit Bat
  Myopotamus É. Geoffroy Saint-Hilaire, 1805 -- invalid
  Myoprocta Thomas, 1903 -- valid -- acouchys
  Myoprocta acouchy (Erxleben, 1777) -- valid -- Red Acouchi, Red Acouchy
  Myoprocta exilis (Wagler, 1831) -- invalid
  Myopterus E. Geoffroy, 1818 -- valid -- winged-mouse bats, African free-tailed bats
  Myopterus daubentonii Desmarest, 1820 -- valid -- Daubenton's Free-tailed Bat, Daubenton's Winged-mouse Bat
  Myopterus whitleyi (Scharff, 1900) -- valid -- Bini Free-tailed Bat, Bini Winged-mouse Bat
  Myopus Miller, 1910 -- valid
  Myopus schisticolor (Lilljeborg, 1844) -- valid -- Wood Lemming
  Myosciurus Thomas, 1909 -- valid
  Myosciurus pumilio (Le Conte, 1857) -- valid -- African Pygmy Squirrel
  Myosorex Gray, 1838 -- valid
  Myosorex babaulti Heim de Balsac and Lamotte, 1956 -- valid -- Babault's Mouse Shrew
  Myosorex blarina Thomas, 1906 -- valid -- Montane Mouse Shrew
  Myosorex cafer (Sundevall, 1846) -- valid -- Dark-footed Mouse Shrew, Dark-footed Forest Shrew
  Myosorex eisentrauti Heim de Balsac, 1968 -- valid -- Eisentraut's Mouse Shrew
  Myosorex geata (G. M. Allen and Loveridge, 1927) -- valid -- Geata Mouse Shrew
  Myosorex longicaudatus Meester and Dippenaar, 1978 -- valid -- Long-tailed Forest Shrew, Long-tailed Mouse Shrew
  Myosorex okuensis Heim de Balsac, 1968 -- valid -- Oku Mouse Shrew
  Myosorex rumpii Heim de Balsac, 1968 -- valid -- Rumpi Mouse Shrew
  Myosorex schalleri Heim de Balsac, 1966 -- valid -- Schaller's Mouse Shrew
  Myosorex sclateri Thomas and Schwann, 1905 -- valid -- Sclater's Mouse Shrew, Sclater's Tiny Mouse Shrew
  Myosorex tenuis Thomas and Schwann, 1905 -- valid -- Thin Mouse Shrew
  Myosorex varius (Smuts, 1832) -- valid -- Forest Shrew, South African Mouse Shrew
  Myospalacinae Lilljeborg, 1866 -- valid
  Myospalax Hermann, 1783 -- invalid
  Myospalax aspalax (Pallas, 1776) -- valid -- False Zokor, Steppe Zokor
  Myospalax epsilanus Thomas, 1912 -- invalid -- Manchurian zokor
  Myospalax fontanierii (Milne-Edwards, 1867) -- invalid -- Chinese zokor
  Myospalax myospalax (Laxmann, 1773) -- valid -- Siberian zokor, Altai Zokor
  Myospalax psilurus (Milne-Edwards, 1874) -- valid -- Transbaikal Zokor, North China Zokor
  Myospalax rothschildi Thomas, 1911 -- invalid -- Rothschild's zokor
  Myospalax smithii Thomas, 1911 -- invalid -- Smith's zokor
  Myotis Kaup, 1829 -- valid -- mouse-eared bats
  Myotis abei Yoshikura, 1944 -- invalid -- Sakhalin Myotis
  Myotis adversus (Horsfield, 1824) -- valid -- Large-footed Bat, Large-footed Myotis, Gray Large-footed Myotis, Large-footed Mouse-eared Bat
  Myotis aelleni Baud, 1979 -- invalid -- Southern Myotis
  Myotis albescens (E. Geoffroy, 1806) -- valid -- Silver-tipped Myotis
  Myotis altarium Thomas, 1911 -- valid -- Szechwan Myotis, Sichuan Myotis, South-western Mouse-eared Bat
  Myotis annectans (Dobson, 1871) -- valid -- Hairy-faced Bat, Hairy-faced Myotis, Intermediate Bat
  Myotis atacamensis (Lataste, 1892) -- valid -- Atacama Myotis, Atacaman Myotis
  Myotis auriculus Baker and Stains, 1955 -- valid -- Miotis orejudo, Southwestern Myotis
  Myotis australis (Dobson, 1878) -- valid -- Australian Myotis
  Myotis austroriparius (Rhoads, 1897) -- valid -- Southeastern Myotis
  Myotis bechsteini (Kuhl, 1817) -- invalid -- Bechstein's bat
  Myotis blythii (Tomes, 1857) -- valid -- lesser mouse-eared bat, Lesser Mouse-eared Myotis, Lesser Myotis
  Myotis bocagei (Peters, 1870) -- invalid -- rufous mouse-eared bat
  Myotis bombinus Thomas, 1906 -- valid -- Far Eastern Myotis
  Myotis brandti (Eversmann, 1845) -- invalid -- Brandt's bat
  Myotis californicus (Audubon and Bachman, 1842) -- valid -- Miotis californiano, California Myotis, Californian Myotis
  Myotis capaccinii (Bonaparte, 1837) -- valid -- long-fingered bat, Long-fingered Myotis
  Myotis chiloensis (Waterhouse, 1840) -- valid -- Chilean Myotis
  Myotis chinensis (Tomes, 1857) -- valid -- Large Myotis
  Myotis ciliolabrum (Merriam, 1886) -- valid -- western small-footed bat, Miotis cara negra, Western Small-footed Myotis, Small-footed Myotis
  Myotis cobanensis Goodwin, 1955 -- valid -- Guatemalan Myotis
  Myotis dasycneme (Boie, 1825) -- valid -- Pond Bat, Pond Myotis
  Myotis daubentoni (Kuhl, 1817) -- invalid -- Daubenton's bat
  Myotis dominicensis Miller, 1902 -- valid -- Dominican Myotis
  Myotis elegans Hall, 1962 -- valid -- Elegant Myotis
  Myotis emarginatus (E. Geoffroy, 1806) -- valid -- Geoffroy's bat, Geoffroy's Myotis
  Myotis evotis (H. Allen, 1864) -- valid -- Miotis oreja larga, Long-eared Myotis, Western Long-eared Bat
  Myotis findleyi Bogan, 1978 -- valid -- Findley's Myotis
  Myotis formosus (Hodgson, 1835) -- valid -- Hodgson's bat, Hodgson's Myotis, Black-and-orange Myotis
  Myotis fortidens Miller and G. M. Allen, 1928 -- valid -- Miotis canelo, Cinnamon Myotis
  Myotis frater G. M. Allen, 1923 -- valid -- Fraternal Myotis, Long-tailed Whiskered Bat
  Myotis goudoti (A. Smith, 1834) -- invalid -- Malagasy mouse-eared bat, Malagasy Myotis
  Myotis grisescens A. H. Howell, 1909 -- valid -- Gray Myotis, Gray Bat
  Myotis hasseltii (Temminck, 1840) -- valid -- lesser large-footed bat, Lesser Large-footed Myotis, Brown Bat, Hasselt's Large-footed Myotis, Van Hasselt's Bat, Lesser Large-toothed Bat
  Myotis horsfieldii (Temminck, 1840) -- valid -- Horsfield's bat, Horsfield's Myotis, Common Asiatic Myotis, Lesser Large-tooth Bat
  Myotis hosonoi Imaizumi, 1954 -- invalid -- Hosono's Myotis
  Myotis ikonnikovi Ognev, 1912 -- valid -- Ikonnikov's Bat, Ikonnikov's Myotis
  Myotis insularum (Dobson, 1878) -- valid -- Insular Myotis
  Myotis keaysi J. A. Allen, 1914 -- valid -- Hairy-legged Myotis, Southern Hairy-legged Myotis
  Myotis keenii (Merriam, 1895) -- valid -- Keen's Myotis
  Myotis leibii (Audubon and Bachman, 1842) -- valid -- Small-footed Myotis, chauve-souris pygmée, Eastern Small-footed Myotis, Eastern Small-footed Bat
  Myotis lesueuri (Roberts, 1919) -- invalid -- Lesueur's Hairy Bat
  Myotis levis (I. Geoffroy, 1824) -- valid -- Yellowish Myotis
  Myotis longipes (Dobson, 1873) -- valid -- Kashmir cave bat, Kashmir Cave Myotis
  Myotis lucifugus (Le Conte, 1831) -- valid -- Little Brown Bat, Miotis norteamericano, petite chauve-souris brune, Little Brown Myotis
  Myotis macrodactylus (Temminck, 1840) -- valid -- Big-footed Myotis, Japanese Large-footed Bat
  Myotis macrotarsus (Waterhouse, 1845) -- valid -- Pallid Large-footed Myotis, Philippine Large-toothed Myotis
  Myotis martiniquensis LaVal, 1973 -- valid -- Schwartz's Myotis
  Myotis milleri Elliot, 1903 -- invalid -- Miller's myotis
  Myotis montivagus (Dobson, 1874) -- valid -- Burmese whiskered bat, Burmese Whiskered Myotis
  Myotis morrisi Hill, 1971 -- valid -- Morris's bat, Morris's Myotis
  Myotis muricola (Gray, 1846) -- valid -- whiskered myotis, Nepalese Whiskered Myotis
  Myotis myotis (Borkhausen, 1797) -- valid -- mouse-eared bat, Mouse-eared Myotis, Greater Myotis, Greater Mouse-eared Bat, Large Mouse-eared Bat
  Myotis mystacinus (Kuhl, 1817) -- valid -- Whiskered Bat, Whiskered Myotis, Common Whiskered Bat
  Myotis nattereri (Kuhl, 1817) -- valid -- Natterer's bat, Natterer's Myotis
  Myotis nesopolus Miller, 1900 -- valid -- Curaçao Myotis
  Myotis nigricans (Schinz, 1821) -- valid -- Black Myotis, Common Black Myotis
  Myotis oreias (Temminck, 1840) -- valid -- Singapore whiskered bat, Singaporese Whiskered Myotis
  Myotis oxyotus (Peters, 1867) -- valid -- Montane Myotis
  Myotis ozensis Imaizumi, 1954 -- invalid -- Honshu Myotis
  Myotis peninsularis Miller, 1898 -- valid -- Peninsular Myotis
  Myotis pequinius Thomas, 1908 -- valid -- Peking Myotis
  Myotis planiceps Baker, 1955 -- valid -- Flat-headed Myotis
  Myotis pruinosus Yoshiyuki, 1971 -- valid -- Frosted Myotis, Blackish Whiskered Bat
  Myotis ricketti (Thomas, 1894) -- invalid -- Rickett's big-footed bat, Rickett's Big-footed Myotis
  Myotis ridleyi (Thomas, 1898) -- valid -- Ridley's bat, Ridley's Myotis
  Myotis riparius Handley, 1960 -- valid -- Riparian Myotis
  Myotis rosseti (Oey, 1951) -- valid -- Thick-thumbed Myotis
  Myotis ruber (E. Geoffroy, 1806) -- valid -- Red Myotis
  Myotis schaubi Kormos, 1934 -- valid -- Schaub's Myotis
  Myotis scotti Thomas, 1927 -- valid -- Scott's Mouse-eared Bat, Scott's Myotis, Scott's Hairy Bat
  Myotis seabrai (Thomas, 1912) -- invalid -- Angolan Hairy Bat
  Myotis septentrionalis (Trouessart, 1897) -- valid -- chauve-souris nordique, Northern Long-eared Bat, Northern Myotis, Northern Bat
  Myotis sicarius Thomas, 1915 -- valid -- Mandelli's mouse-eared bat, Mandelli's Mouse-eared Myotis, Mandelli's Myotis, Sikkim Myotis
  Myotis siligorensis (Horsfield, 1855) -- valid -- Himalayan whiskered bat, Himalayan Whiskered Myotis, Small-toothed Myotis, Siliguri Bat
  Myotis simus Thomas, 1901 -- valid -- Velvety Myotis
  Myotis sodalis Miller and G. M. Allen, 1928 -- valid -- Indiana Myotis, Indiana bat, Cluster Bat, Social Bat
  Myotis stalkeri Thomas, 1910 -- valid -- Kei Myotis, Stalker's Myotis, Moluccan Mouse-eared Bat
  Myotis thysanodes Miller, 1897 -- valid -- Miotis bordado, Fringed Myotis
  Myotis tricolor (Temminck, 1832) -- valid -- Cape Hairy Bat, Temminck's Myotis, Temminck's Mouse-eared Bat, Three-colored Bat
  Myotis velifer (J. A. Allen, 1890) -- valid -- Miotis mexicano, Cave Myotis
  Myotis vivesi Menegaux, 1901 -- valid -- Fish-eating Bat, Fish-eating Myotis
  Myotis volans (H. Allen, 1866) -- valid -- Miotis pata larga, Long-legged Myotis
  Myotis welwitschii (Gray, 1866) -- valid -- Welwitch's bat, Welwitsch's Myotis
  Myotis yesoensis Yoshiyuki, 1984 -- invalid -- Yoshiyuki's Myotis
  Myotis yumanensis (H. Allen, 1864) -- valid -- Miotis de Yuma, Yuma Myotis
  Myoxidae Gray, 1821 -- invalid
  Myoxinae Gray, 1821 -- invalid
  Myoxus Zimmermann, 1780 -- invalid
  Myoxus glis (Linnaeus, 1766) -- invalid
  Myrmecobiidae Waterhouse, 1841 -- valid
  Myrmecobius Waterhouse, 1836 -- valid
  Myrmecobius fasciatus Waterhouse, 1836 -- valid -- banded anteater, Numbat
  Myrmecophaga Linnaeus, 1758 -- valid -- giant anteaters
  Myrmecophaga tridactyla Linnaeus, 1758 -- valid -- Giant Anteater
  Myrmecophagidae Gray, 1825 -- valid -- American anteaters
  Mysateles Lesson, 1842 -- valid
  Mysateles garridoi (Varona, 1970) -- valid -- Garrido's Hutia, Garrido Tree Hutia
  Mysateles gundlachi (Chapman, 1901) -- invalid
  Mysateles melanurus (Poey, 1865) -- invalid
  Mysateles meridionalis (Varona, 1986) -- invalid -- Southern Hutia
  Mysateles prehensilis (Poeppig, 1824) -- valid -- Prehensile-tailed Hutia
  Mystacina Gray, 1843 -- valid -- New Zealand short-tailed bats
  Mystacina robusta Dwyer, 1962 -- valid -- New Zealand Greater Short-tailed Bat, Greater New Zealand Short-tailed Bat
  Mystacina tuberculata Gray, 1843 -- valid -- New Zealand Lesser Short-tailed Bat, Lesser New Zealand Short-tailed Bat
  Mystacinidae Dobson, 1875 -- valid -- New Zealand short-tailed bats
  Mysticeti Flower, 1864 -- valid -- baleen whales
  Mystromyinae Vorontsov, 1966 -- valid
  Mystromys Wagner, 1841 -- valid
  Mystromys albicaudatus (A. Smith, 1834) -- valid -- White-tailed Mouse, African White-tailed Rat
  Myzopoda A. Milne-Edwards and A. Grandidier, 1878 -- valid
  Myzopoda aurita A. Milne-Edwards and A. Grandidier, 1878 -- valid -- Sucker-footed Bat, Eastern Sucker-footed Bat
  Myzopodidae Thomas, 1904 -- valid -- Madagascar sucker-footed bats
  Naemorhedus C. H. Smith, 1827 -- valid
  Naemorhedus baileyi Pocock, 1914 -- valid -- Red Goral, red goral
  Naemorhedus caudatus (Milne-Edwards, 1867) -- valid -- Chinese goral, Long-tailed Goral
  Naemorhedus crispus (Temminck, 1845) -- invalid -- Japanese serow
  Naemorhedus goral (Hardwicke, 1825) -- valid -- Himalayan Goral, Sumatran serow, goral
  Naemorhedus sumatraensis (Bechstein, 1799) -- invalid -- serow
  Naemorhedus swinhoei (Gray, 1862) -- invalid -- Taiwan serow
  Nandinia Gray, 1843 -- valid
  Nandinia binotata (Gray, 1830) -- valid -- African Palm Civet
  Nandiniinae Pocock, 1929 -- invalid
  Nannosciurus Trouessart, 1880 -- valid
  Nannosciurus melanotis (Müller, 1840) -- valid -- Black-eared Squirrel
  Nannospalax Palmer, 1903 -- invalid -- Lesser Blind Mole Rats
  Nannospalax ehrenbergi (Nehring, 1898) -- invalid -- Palestine Mole Rat
  Nannospalax leucodon (Nordmann, 1840) -- invalid -- Lesser Mole Rat
  Nannospalax nehringi (Satunin, 1898) -- invalid -- Nehring's Blind Mole Rat
  Nanonycteris Matschie, 1899 -- valid
  Nanonycteris veldkampi (Jentink, 1888) -- invalid -- Veldkamp's bat
  Napaeozapus Preble, 1899 -- valid -- woodland jumping mice
  Napaeozapus insignis (Miller, 1891) -- valid -- souris sauteuse des bois, Woodland Jumping Mouse
  Nasalis É. Geoffroy Saint-Hilaire, 1812 -- valid -- Proboscis Monkey
  Nasalis concolor (Miller, 1903) -- invalid
  Nasalis larvatus (van Wurmb, 1787) -- valid -- Proboscis Monkey
  Nasua Storr, 1780 -- valid -- coatis
  Nasua narica (Linnaeus, 1766) -- valid -- White-nosed Coati, Coatí norteño
  Nasua nasua (Linnaeus, 1766) -- valid -- South American Coati
  Nasua nasua nasua (Linnaeus, 1766) -- valid
  Nasua nasua solitaria Schinz, 1823 -- valid
  Nasuella Hollister, 1915 -- invalid
  Nasuella olivacea (Gray, 1865) -- invalid -- Mountain Coati, Western Mountain Coati
  Natalidae Gray, 1866 -- valid -- funnel-eared bats
  Natalus Gray, 1838 -- valid
  Natalus lepidus (Gervais, 1837) -- invalid -- Gervais's Funnel-eared Bat
  Natalus micropus Dobson, 1880 -- invalid
  Natalus stramineus Gray, 1838 -- valid -- Mexican Funnel-eared Bat, Mexican Greater Funnel-eared Bat, Lesser Antillean Funnel-eared Bat
  Natalus tumidifrons (Miller, 1903) -- invalid
  Natalus tumidirostris Miller, 1900 -- valid -- Trinidadian Greater Funnel-eared Bat, Trinidadian Funnel-eared Bat
  Neacomys Thomas, 1900 -- valid -- Bristly Mice
  Neacomys guianae Thomas, 1905 -- valid -- Guiana Bristly Mouse, Guianan Neacomys
  Neacomys pictus Goldman, 1912 -- valid -- Painted Bristly Mouse, Painted Neacomys
  Neacomys spinosus (Thomas, 1882) -- valid -- Bristly Mouse, Common Neacomys
  Neacomys tenuipes Thomas, 1900 -- valid -- Narrow-footed Bristly Mouse, Narrow-footed Neacomys, Painted Bristly Mouse
  Nectogale A. Milne-Edwards, 1870 -- valid
  Nectogale elegans A. Milne-Edwards, 1870 -- valid -- Elegant Water Shrew
  Nectomys Peters, 1861 -- valid -- Neotropical Water Rats
  Nectomys palmipes J. A. Allen and Chapman, 1893 -- valid -- Trinidad water rat, Trinidad Nectomys
  Nectomys parvipes F. Petter, 1979 -- invalid -- Small-footed Water Rat
  Nectomys squamipes (Brants, 1827) -- valid -- South American water rat, Atlantic Forest Nectomys
  Nelsonia Merriam, 1897 -- valid -- Diminutive Wood Rat
  Nelsonia goldmani Merriam, 1903 -- valid -- Nelson and Goldman's woodrat, Goldman's Diminutive Woodrat
  Nelsonia neotomodon Merriam, 1897 -- valid -- Western Diminutive Woodrat, Diminutive Woodrat
  Neobalaenidae Gray, 1873 -- valid -- pygmy right whales
  Neofelis Gray, 1867 -- valid
  Neofelis nebulosa (Griffith, 1821) -- valid -- Clouded Leopard, Indochinese Clouded Leopard, Mainland Clouded Leopard, panthère longibande, panthère nébleuse, pantera longibanda, pantera nebulosa
  Neofiber True, 1884 -- valid -- Round-tailed Muskrats
  Neofiber alleni True, 1884 -- valid -- Round-tailed Muskrat
  Neohydromys Laurie, 1952 -- invalid
  Neohydromys fuscus Laurie, 1952 -- invalid
  Neomys Kaup, 1829 -- valid
  Neomys anomalus Cabrera, 1907 -- valid -- Mediterranean Water Shrew, Southern Water Shrew
  Neomys fodiens (Pennant, 1771) -- valid -- Eurasian Water Shrew
  Neomys schelkovnikovi Satunin, 1913 -- invalid -- Transcaucasian Water Shrew
  Neophascogale Stein, 1933 -- valid
  Neophascogale lorentzi (Jentink, 1911) -- invalid -- long-clawed marsupial 'mouse', Speckled Dasyure
  Neophoca Gray, 1866 -- valid
  Neophoca cinerea (Péron, 1816) -- valid -- Australian Sealion, white-capped sea lion, Australian sea lion
  Neophocaena Palmer, 1899 -- valid
  Neophocaena phocaenoides (G. Cuvier, 1829) -- valid -- Finless Porpoise, Indo-Pacific finless porpoise
  Neophocaena phocaenoides asiaeorientalis (Pilleri and Gihr, 1972) -- invalid -- Yangtse River Porpoise
  Neophocaena phocaenoides phocaenoides (G. Cuvier, 1829) -- invalid
  Neophocaena phocaenoides sunameri Pilleri and Gihr, 1975 -- invalid -- Sunameri
  Neopteryx Hayman, 1946 -- valid
  Neopteryx frosti Hayman, 1946 -- valid -- Small-toothed Fruit Bat
  Neotoma Say and Ord, 1825 -- valid -- Packrats
  Neotoma albigula Hartley, 1894 -- valid -- Rata-cambalachera garganta blanca, White-throated Woodrat
  Neotoma angustapalata Baker, 1951 -- valid -- Tamaulipan Woodrat
  Neotoma anthonyi J. A. Allen, 1898 -- valid -- Anthony's Woodrat
  Neotoma bryanti Merriam, 1887 -- valid -- Bryant's Woodrat
  Neotoma bunkeri Burt, 1932 -- valid -- Bunker's woodrat, Coronados Island Woodrat, Bunker's Wood Rat
  Neotoma chrysomelas J. A. Allen, 1908 -- valid -- Nicaraguan Woodrat
  Neotoma cinerea (Ord, 1815) -- valid -- Bushy-tailed Woodrat
  Neotoma devia Goldman, 1927 -- valid -- Rata-cambalachera de Coronado, Arizona Woodrat
  Neotoma floridana (Ord, 1818) -- valid -- Eastern Woodrat
  Neotoma floridana smalli Sherman, 1955 -- invalid -- Key Largo woodrat
  Neotoma fuscipes Baird, 1857 -- valid -- Rata-cambalachera patas oscuras, Dusky-footed Woodrat
  Neotoma fuscipes riparia Hooper, 1938 -- invalid
  Neotoma goldmani Merriam, 1903 -- valid -- Goldman's Woodrat
  Neotoma lepida Thomas, 1893 -- valid -- Rata-cambalachera desértica, Desert Woodrat
  Neotoma martinensis Goldman, 1905 -- valid -- San Martin Island woodrat, San Martín Woodrat, San Martín Island Wood Rat
  Neotoma mexicana Baird, 1855 -- valid -- Rata-cambalachera mexicana, Mexican Woodrat
  Neotoma micropus Baird, 1855 -- valid -- Rata-cambalachera de pradera, Southern Plains Woodrat
  Neotoma nelsoni Goldman, 1905 -- valid -- Nelson's Woodrat
  Neotoma palatina Goldman, 1905 -- valid -- Bolaños Woodrat
  Neotoma phenax (Merriam, 1903) -- valid -- Sonoran Woodrat
  Neotoma stephensi Goldman, 1905 -- valid -- Stephens's woodrat, Stephen's Woodrat
  Neotoma varia Burt, 1932 -- valid -- Turner Island woodrat
  Neotomodon Merriam, 1898 -- valid -- Volcano Mouse
  Neotomodon alstoni Merriam, 1898 -- valid -- Mexican Volcano Mouse, Volcano Deermouse, Volcano Mouse
  Neotomys Thomas, 1894 -- valid
  Neotomys ebriosus Thomas, 1894 -- valid -- Andean swamp rat, Red-nosed Neotomys
  Neotragus C. H. Smith, 1827 -- valid -- dwarf antelopes
  Neotragus batesi de Winton, 1903 -- valid -- Bates's Dwarf Antelope, dwarf antelope
  Neotragus moschatus (Von Dueben, 1846) -- valid -- suni, Suni
  Neotragus pygmaeus (Linnaeus, 1758) -- valid -- Royal Antelope, royal antelope
  Nesokia Gray, 1842 -- valid -- Short-tailed Bandicoot Rats
  Nesokia bunnii (Khajuria, 1981) -- valid -- Long-tailed Nesokia
  Nesokia indica (Gray, 1830) -- valid -- Short-tailed Nesokia, Short-tailed Bandicoot Rat
  Nesolagus Forsyth-Major, 1899 -- valid
  Nesolagus netscheri (Schlegel, 1880) -- valid -- Sumatran Short-eared Rabbit, Sumatran Striped Rabbit, Sumatran Rabbit
  Nesomyinae Forsyth Major, 1897 -- valid
  Nesomys Peters, 1870 -- valid
  Nesomys rufus Peters, 1870 -- valid -- Island Mouse, Rufous Nesomys
  Nesophontes Anthony, 1916 -- valid
  Nesophontes edithae Anthony, 1916 -- valid -- Puerto Rican Nesophontes
  Nesophontes hypomicrus G. S. Miller, 1929 -- valid -- Atalaya Nesophontes
  Nesophontes longirostris Anthony, 1919 -- invalid -- Slender Cuban Nesophontes
  Nesophontes major Arredondo, 1970 -- valid -- Greater Cuban Nesophontes
  Nesophontes micrus G. M. Allen, 1917 -- valid -- Western Cuban Nesophontes
  Nesophontes paramicrus G. S. Miller, 1929 -- valid -- St. Michel Nesophontes
  Nesophontes submicrus Arredondo, 1970 -- invalid -- Lesser Cuban Nesophontes
  Nesophontes zamicrus G. S. Miller, 1929 -- valid -- Haitian Nesophontes
  Nesophontidae Anthony, 1916 -- valid
  Nesoryzomys Heller, 1904 -- valid -- Galapagos Mice
  Nesoryzomys darwini Osgood, 1929 -- valid -- Darwin's Galapagos Mouse, Darwin's Nesoryzomys
  Nesoryzomys fernandinae Hutterer and Hirsch, 1979 -- valid -- Fernandina Galapagos Mouse, Fernandina Nesoryzomys
  Nesoryzomys indefessus (Thomas, 1899) -- valid -- Indefatigable Galapagos Mouse, Santa Cruz Nesoryzomys
  Nesoryzomys swarthi Orr, 1938 -- valid -- Santiago Galapagos Mouse, Santiago Nesoryzomys
  Nesoscaptor Abe, Shiraishi and Arai, 1991 -- invalid
  Nesoscaptor uchidai Abe, Shiraishi and Arai, 1991 -- invalid -- Ryukyu Mole
  Neurotrichus Günther, 1880 -- valid -- American shrew-moles
  Neurotrichus gibbsii (Baird, 1858) -- valid -- American Shrew Mole, Gibbs's shrew mole, least shrew mole, Shrew-mole
  Neusticomys Anthony, 1921 -- valid -- Fish-eating Rats
  Neusticomys monticolus Anthony, 1921 -- valid -- Montane Fish-eating Rat, Montane Ichthyomyine
  Neusticomys mussoi Ochoa G. and Soriano, 1991 -- valid -- Musso's Fish-eating Rat, Musso's Ichthyomyine
  Neusticomys oyapocki (Dubost and F. Petter, 1978) -- valid -- Oyapock's Fish-eating Rat, Guianan Ichthyomyine
  Neusticomys peruviensis (Musser and Gardner, 1974) -- valid -- Peruvian Fish-eating Rat, Peruvian Ichthyomyine
  Neusticomys venezuelae (Anthony, 1929) -- valid -- Venezuelan Fish-eating Rat, Venezuelan Ichthyomyine
  Ningaui Archer, 1975 -- valid -- ningauis
  Ningaui ridei Archer, 1975 -- valid -- Wongai Ningaui
  Ningaui timealeyi Archer, 1975 -- valid -- Pilbara Ningaui
  Ningaui yvonnae Kitchener, Stoddart and Henry, 1983 -- valid -- Southern Ningaui
  Niviventer J. T. Marshall Jr., 1976 -- valid -- White-bellied Rats
  Niviventer andersoni (Thomas, 1911) -- valid -- Anderson's Niviventer
  Niviventer brahma (Thomas, 1914) -- valid -- Brahman Niviventer
  Niviventer confucianus (Milne-Edwards, 1871) -- valid -- Confucian Niviventer
  Niviventer coxingi (Swinhoe, 1864) -- invalid
  Niviventer cremoriventer (Miller, 1900) -- valid -- Sundaic Arboreal Niviventer, Dark-tailed Rat
  Niviventer culturatus (Thomas, 1917) -- valid -- Soft-furred Taiwan Niviventer
  Niviventer eha (Wroughton, 1916) -- valid -- Smoke-bellied Niviventer, Little Himalayan Rat
  Niviventer excelsior (Thomas, 1911) -- valid -- Sichuan Niviventer
  Niviventer fulvescens (Gray, 1847) -- valid -- Chestnut Rat, Indomalayan Niviventer
  Niviventer hinpoon (J. T. Marshall Jr., 1976) -- valid -- Limestone Niviventer
  Niviventer langbianis (Robinson and Kloss, 1922) -- valid -- Indochinese Arboreal Niviventer
  Niviventer lepturus (Jentink, 1879) -- valid -- Montane Javan Niviventer
  Niviventer niviventer (Hodgson, 1836) -- valid -- Himalayan Niviventer
  Niviventer rapit (Bonhote, 1903) -- valid -- Montane Bornean Niviventer
  Niviventer tenaster (Thomas, 1916) -- valid -- Indochinese Mountain Niviventer
  Noctilio Linnaeus, 1766 -- valid -- bulldog bats
  Noctilio albiventris Desmarest, 1818 -- valid -- Lesser Bulldog Bat
  Noctilio leporinus (Linnaeus, 1758) -- valid -- Murciélago-pescador mayor, Greater Bulldog Bat
  Noctilionidae Gray, 1821 -- valid -- bulldog bats
  Notiomys Thomas, 1890 -- valid
  Notiomys edwardsii (Thomas, 1890) -- valid -- Edwards's long-clawed mouse, Edward's Long-clawed Akodont
  Notiosorex Coues, 1877 -- valid -- desert shrews
  Notiosorex crawfordi (Coues, 1877) -- valid -- Desert Gray Shrew, Desert Shrew, Musaraña-desértica norteña, Crawford's Gray Shrew
  Notomys Lesson, 1842 -- valid -- Australian Hopping Mice
  Notomys alexis Thomas, 1922 -- valid -- Spinifex Hopping Mouse
  Notomys amplus Brazenor, 1936 -- valid -- Short-tailed Hopping Mouse
  Notomys aquilo Thomas, 1921 -- valid -- Northern Hopping Mouse
  Notomys cervinus (Gould, 1853) -- valid -- Fawn Hopping Mouse
  Notomys fuscus (Wood Jones, 1925) -- valid -- Dusky Hopping Mouse
  Notomys longicaudatus (Gould, 1844) -- valid -- Long-tailed Hopping Mouse
  Notomys macrotis Thomas, 1921 -- valid -- Big-eared Hopping Mouse
  Notomys mitchellii (Ogilby, 1838) -- valid -- Mitchell's Hopping Mouse
  Notomys mordax Thomas, 1922 -- valid -- Darling Downs Hopping Mouse
  Notopteris Gray, 1859 -- valid -- long-tailed fruit bats
  Notopteris macdonaldi Gray, 1859 -- invalid -- long-tailed fruit bat, Fijian Long-tailed Fruit Bat
  Notoryctemorphia Kirsch in Hunsaker, 1977 -- valid -- marsupial 'moles'
  Notoryctes Stirling, 1891 -- valid -- marsupial 'moles'
  Notoryctes caurinus Thomas, 1920 -- valid -- Northern Marsupial Mole, North-western Marsuipal Mole
  Notoryctes typhlops (Stirling, 1889) -- valid -- Southern Marsupial Mole, Central Desert Marsupial Mole
  Notoryctidae Ogilby, 1892 -- valid -- marsupial 'moles'
  Nyctalus Bowditch, 1825 -- valid
  Nyctalus aviator (Thomas, 1911) -- valid -- Birdlike Noctule, Bird-like Noctule, Japanese Large Noctule
  Nyctalus azoreum (Thomas, 1901) -- valid -- Azores Noctule, Azorean Bat
  Nyctalus lasiopterus (Schreber, 1780) -- valid -- Giant Noctule, Greater Noctule, Greater Noctule Bat
  Nyctalus leisleri (Kuhl, 1817) -- valid -- lesser noctule, Leisler's Noctule
  Nyctalus montanus (Barrett-Hamilton, 1906) -- valid -- Mountain Noctule, Himalayan Noctule
  Nyctalus noctula (Schreber, 1774) -- valid -- Noctule, Common Noctule
  Nyctereutes Temminck, 1838 -- valid
  Nyctereutes procyonoides (Gray, 1834) -- valid -- Chinese Raccoon Dog, Raccoon Dog, Asiatic Raccoon, Tanuki
  Nycteridae Van der Hoeven, 1855 -- valid -- slit-faced bats, hollow-faced bats
  Nycteris E. Geoffroy and G. Cuvier, 1795 -- valid
  Nycteris arge Thomas, 1903 -- valid -- Bates's Slit-faced Bat
  Nycteris gambiensis (K. Andersen, 1912) -- valid -- Gambian Slit-faced Bat
  Nycteris grandis Peters, 1865 -- valid -- Large Slit-faced Bat
  Nycteris hispida (Schreber, 1775) -- valid -- Hairy Long-eared Bat, Hairy Slit-faced Bat
  Nycteris intermedia Aellen, 1959 -- valid -- Intermediate Slit-faced Bat
  Nycteris javanica E. Geoffroy, 1813 -- valid -- Javan Hollow-faced Bat, Javan Slit-faced Bat
  Nycteris macrotis Dobson, 1876 -- valid -- Large-eared Slit-faced Bat
  Nycteris major (K. Andersen, 1912) -- valid -- Dja Slit-faced Bat
  Nycteris nana (K. Andersen, 1912) -- valid -- Dwarf Slit-faced Bat
  Nycteris thebaica E. Geoffroy, 1818 -- valid -- Cape Slit-faced Bat, Cape Long-eared Bat, Common Slit-faced Bat, Egyptian Slit-faced Bat
  Nycteris tragata (K. Andersen, 1912) -- valid -- Malayan Hollow-faced Bat, Malayan Slit-faced Bat
  Nycteris woodi K. Andersen, 1914 -- valid -- Wood's Long-eared Bat, Wood's Slit-faced Bat
  Nycticebus É. Geoffroy Saint-Hilaire, 1812 -- valid -- slow lorises
  Nycticebus coucang (Boddaert, 1785) -- valid -- Greater Slow Loris, Sunda Slow Loris, Slow Loris, Malayasian Slow Loris
  Nycticebus pygmaeus Bonhote, 1907 -- invalid -- Pygmy Slow Loris
  Nycticeius Rafinesque, 1819 -- valid -- evening bats
  Nycticeius balstoni (Thomas, 1906) -- invalid -- western broad-nosed bat
  Nycticeius greyii (Gray, 1843) -- invalid -- little broad-nosed bat
  Nycticeius humeralis (Rafinesque, 1818) -- valid -- Murciélago-crepuscular americano, Evening Bat, North American Evening Bat
  Nycticeius rueppellii Peters, 1866 -- invalid -- Rüppell's broad-nosed bat
  Nycticeius sanborni (Troughton, 1937) -- invalid -- northern broad-nosed bat
  Nycticeius schlieffeni (Peters, 1859) -- invalid -- Schlieffen's bat
  Nyctimene Borkhausen, 1797 -- valid
  Nyctimene aello (Thomas, 1900) -- valid -- Broad-striped Tube-nosed Fruit Bat
  Nyctimene albiventer (Gray, 1863) -- valid -- Common Tube-nosed Fruit Bat
  Nyctimene celaeno Thomas, 1922 -- invalid -- dark tube-nosed fruit bat
  Nyctimene cephalotes (Pallas, 1767) -- valid -- Pallas's Tube-nosed Fruit Bat
  Nyctimene certans K. Andersen, 1912 -- valid -- Mountain Tube-nosed Fruit Bat
  Nyctimene cyclotis K. Andersen, 1910 -- valid -- Round-eared Tube-nosed Fruit Bat
  Nyctimene draconilla Thomas, 1915 -- valid -- Dragon Tube-nosed Fruit Bat
  Nyctimene major (Dobson, 1877) -- valid -- Island Tube-nosed Fruit Bat
  Nyctimene malaitensis Phillips, 1968 -- valid -- Malaita Tube-nosed Fruit Bat
  Nyctimene masalai Smith and Hood, 1983 -- valid -- Demonic Tube-nosed Fruit Bat
  Nyctimene minutus K. Andersen, 1910 -- invalid -- Lesser Tube-nosed Fruit Bat
  Nyctimene rabori Heaney and Peterson, 1984 -- valid -- Philippine Tube-nosed Fruit Bat
  Nyctimene robinsoni Thomas, 1904 -- valid -- Queensland Tube-nosed Fruit Bat
  Nyctimene sanctacrucis Troughton, 1931 -- invalid -- Nendo Tube-nosed Fruit Bat
  Nyctimene vizcaccia Thomas, 1914 -- valid -- Umboi Tube-nosed Fruit Bat
  Nyctinomops Miller, 1902 -- valid
  Nyctinomops aurispinosus (Peale, 1848) -- valid -- Peale's Free-tailed Bat
  Nyctinomops femorosaccus (Merriam, 1889) -- valid -- Murciélago-cola suelta de bolsa, Pocketed Free-tailed Bat
  Nyctinomops laticaudatus (E. Geoffroy, 1805) -- valid -- Broad-eared Bat, Broad-eared Free-tailed Bat
  Nyctinomops macrotis (Gray, 1840) -- valid -- Murciélago-cola suelta mayor, Big Free-tailed Bat
  Nyctomys Saussure, 1860 -- valid -- Sumichrast's Vesper Rat
  Nyctomys sumichrasti (Saussure, 1860) -- valid -- Vesper Rat, Sumichrast's Vesper Rat
  Nyctophilus Leach, 1821 -- valid
  Nyctophilus arnhemensis Johnson, 1959 -- valid -- Northern Long-eared Bat, Arnhem Long-eared Bat
  Nyctophilus geoffroyi Leach, 1821 -- valid -- Lesser Long-eared Bat
  Nyctophilus gouldi Tomes, 1858 -- valid -- Gould's Long-eared Bat
  Nyctophilus heran Kitchener, How and Maharadatunkamsi, 1991 -- valid -- Sunda long-eared bat, Sundan Long-eared Bat
  Nyctophilus microdon Laurie and Hill, 1954 -- valid -- Small-toothed Long-eared Bat
  Nyctophilus microtis Thomas, 1888 -- valid -- New Guinea Long-eared Bat, Papuan Long-eared Bat, Small-eared Nyctophilus
  Nyctophilus timoriensis (E. Geoffroy, 1806) -- invalid -- Greater Long-eared Bat
  Nyctophilus walkeri Thomas, 1892 -- valid -- Pygmy Long-eared Bat
  Ochotona Link, 1795 -- valid -- Pikas
  Ochotona alpina (Pallas, 1773) -- valid -- Alpine Pika, Altai Pika
  Ochotona cansus Lyon, 1907 -- valid -- Gansu Pika
  Ochotona collaris (Nelson, 1893) -- valid -- Collared Pika
  Ochotona curzoniae (Hodgson, 1858) -- valid -- Plateau Pika, Black-lipped Pika
  Ochotona dauurica (Pallas, 1776) -- valid -- Daurian Pika
  Ochotona erythrotis (Büchner, 1890) -- valid -- Chinese Red Pika
  Ochotona forresti Thomas, 1923 -- valid -- Forrest's Pika
  Ochotona gaoligongensis Wang, Gong and Duan, 1988 -- invalid -- Gaoligong Pika
  Ochotona gloveri Thomas, 1922 -- valid -- Glover's Pika
  Ochotona himalayana Feng, 1973 -- invalid -- Himalayan Pika
  Ochotona huangensis (Matschie, 1908) -- invalid -- Huanghe pika, Tsing-Ling Pika
  Ochotona hyperborea (Pallas, 1811) -- valid -- Northern Pika, Siberian Pika
  Ochotona iliensis Li and Ma, 1986 -- valid -- Ili Pika
  Ochotona koslowi (Büchner, 1894) -- valid -- Kozlov's Pika, Koslov's Pika
  Ochotona ladacensis (Günther, 1875) -- valid -- Ladak Pika
  Ochotona macrotis (Günther, 1875) -- valid -- Large-eared Pika
  Ochotona muliensis Pen and Feng, 1962 -- invalid -- Muli Pika
  Ochotona nubrica Thomas, 1922 -- valid -- Nubra Pika
  Ochotona pallasi (Gray, 1867) -- valid -- Pallas's Pika, Mongolian Pika
  Ochotona princeps (Richardson, 1828) -- valid -- American Pika, Cony, Rock Rabbit, Hay-maker, Mouse Hare, Piping Hare, Whistling Hare, Little Chief Hare, Southern Pika
  Ochotona princeps goldmani Howell, 1924 -- invalid
  Ochotona princeps lasalensis Durrant and Lee, 1955 -- invalid
  Ochotona princeps nevadensis Howell, 1919 -- invalid
  Ochotona princeps nigrescens Bailey, 1913 -- invalid
  Ochotona princeps obscura Long, 1965 -- invalid
  Ochotona princeps princeps (Richardson, 1828) -- valid
  Ochotona pusilla (Pallas, 1769) -- valid -- Steppe Pika, Little Pika, Small Pika
  Ochotona roylei (Ogilby, 1839) -- invalid -- Royle's Pika, Himalayan Mouse Hare
  Ochotona rufescens (Gray, 1842) -- valid -- Afghan Pika, Collared Pika, Rufescent Pika
  Ochotona rutila (Severtzov, 1873) -- valid -- Turkestan Red Pika
  Ochotona thibetana (A. Milne-Edwards, 1871) -- valid -- Moupin Pika
  Ochotona thibetana huangensis (Matschie, 1908) -- invalid -- Huanghe pika
  Ochotona thomasi Argyropulo, 1948 -- valid -- Thomas' pika, Thomas's Pika
  Ochotonidae Thomas, 1897 -- valid -- Pikas
  Ochrotomys Osgood, 1909 -- valid -- Golden Mice
  Ochrotomys nuttalli (Harlan, 1832) -- valid -- Golden Mouse
  Octodon Bennett, 1832 -- valid -- degus
  Octodon bridgesi Waterhouse, 1845 -- invalid -- Bridges's Degu
  Octodon degus (Molina, 1782) -- valid -- Degu, Common Degu
  Octodon lunatus Osgood, 1943 -- valid -- Moon-toothed Degu, Coastal Degu
  Octodontidae Waterhouse, 1840 -- valid -- viscacha rats, degus, rock rats, coruro
  Octodontomys Palmer, 1903 -- valid
  Octodontomys gliroides (Gervais and d'Orbigny, 1844) -- valid -- Mountain Degu
  Octomys Thomas, 1920 -- valid
  Octomys mimax Thomas, 1920 -- valid -- Viscacha Rat, Common Viscacha Rat
  Odobenidae Allen, 1880 -- valid -- walruses
  Odobenus Brisson, 1762 -- valid -- walruses
  Odobenus rosmarus (Linnaeus, 1758) -- valid -- Walrus, morse
  Odocoileinae Pocock, 1923 -- invalid
  Odocoileus Rafinesque, 1832 -- valid -- mule deer, white-tailed deer
  Odocoileus hemionus (Rafinesque, 1817) -- valid -- mule deer, Venado bura, Mule Deer
  Odocoileus hemionus hemionus (Rafinesque, 1817) -- valid -- black-tailed deer, Rocky Mountain mule deer
  Odocoileus virginianus (Zimmermann, 1780) -- valid -- white-tailed deer, Venado cola blanca, cerf de Virginie, White-tailed Deer
  Odocoileus virginianus clavium Barbour and G. M. Allen, 1922 -- valid -- Key deer
  Odocoileus virginianus leucurus (Douglas, 1829) -- valid -- Columbian white-tailed deer
  Odontoceti Flower, 1867 -- valid -- toothed whales
  Oecomys Thomas, 1906 -- valid -- Arboreal Rice Rats
  Oecomys bicolor (Tomes, 1860) -- valid -- Bicolored Arboreal Rice Rat, White-bellied Oecomys
  Oecomys cleberi Locks, 1981 -- valid -- Cleber's Arboreal Rice Rat, Cleber's Oecomys
  Oecomys concolor (Wagner, 1845) -- valid -- Unicolored Arboreal Rice Rat, Unicolored Oecomys, Concolored Rice Rat
  Oecomys flavicans (Thomas, 1894) -- valid -- Tawny Oecomys, Yellow Arboreal Rice Rat
  Oecomys mamorae (Thomas, 1906) -- valid -- Mamore Arboreal Rice Rat, Marmore Oecomys
  Oecomys paricola (Thomas, 1904) -- valid -- Brazilian Arboreal Rice Rat, Brazilian Oecomys
  Oecomys phaeotis (Thomas, 1901) -- valid -- Dusky Arboreal Rice Rat, Dusky Oecomys
  Oecomys rex Thomas, 1910 -- valid -- King Arboreal Rice Rat, Regal Oecomys
  Oecomys roberti (Thomas, 1904) -- valid -- Robert's Arboreal Rice Rat, Robert's Oecomys
  Oecomys rutilus Anthony, 1921 -- valid -- Red Arboreal Rice Rat, Reddish Oecomys
  Oecomys speciosus (J. A. Allen and Chapman, 1893) -- valid -- Arboreal Rice Rat, Savannah Oecomys
  Oecomys superans Thomas, 1911 -- valid -- Foothill Arboreal Rice Rat, Large Oecomys
  Oecomys trinitatis (J. A. Allen and Chapman, 1893) -- valid -- Trinidad Arboreal Rice Rat, Long-furred Oecomys
  Oenomys Thomas, 1904 -- valid -- Rufous-nosed Rats
  Oenomys hypoxanthus (Pucheran, 1855) -- valid -- Common Oenomys
  Oenomys ornatus Thomas, 1911 -- valid -- West African Oenomys
  Okapia Lankester, 1901 -- valid
  Okapia johnstoni (P. L. Sclater, 1901) -- valid -- okapi, Okapi
  Olallamys Emmons, 1988 -- valid
  Olallamys albicauda (Günther, 1879) -- valid -- White-tailed Olalla Rat
  Olallamys edax (Thomas, 1916) -- valid -- Greedy Olalla Rat
  Oligoryzomys Bangs, 1900 -- valid -- Pygmy Rice Rats
  Oligoryzomys andinus (Osgood, 1914) -- valid -- Andean Pygmy Rice Rat, Andean Colilargo
  Oligoryzomys arenalis (Thomas, 1913) -- valid -- Sandy Pygmy Rice Rat, Sandy Colilargo
  Oligoryzomys chacoensis (Myers and Carleton, 1981) -- valid -- Chacoan Pygmy Rice Rat, Chacoan Colilargo
  Oligoryzomys delticola (Thomas, 1917) -- valid -- Delta Pygmy Rice Rat, Large Colilargo
  Oligoryzomys destructor (Tschudi, 1844) -- valid -- Destructive Pygmy Rice Rat, Tschudi's Colilargo
  Oligoryzomys eliurus (Wagner, 1845) -- valid -- Brazilian Pygmy Rice Rat, Brazilian Colilargo
  Oligoryzomys flavescens (Waterhouse, 1837) -- valid -- Yellow Pygmy Rice Rat, Flavescent Colilargo
  Oligoryzomys fulvescens (Saussure, 1860) -- valid -- Fulvous Pygmy Rice Rat, Fulvous Colilargo, Pygmy Rice Rat
  Oligoryzomys griseolus (Osgood, 1912) -- valid -- Grayish Pygmy Rice Rat, Grizzled Colilargo
  Oligoryzomys longicaudatus (Bennett, 1832) -- valid -- Long-tailed Pygmy Rice Rat, Long-tailed Colilargo
  Oligoryzomys magellanicus (Bennett, 1836) -- valid -- Magellanic Pygmy Rice Rat, Patagonian Colilargo
  Oligoryzomys microtis (J. A. Allen, 1916) -- valid -- Small-eared Pygmy Rice Rat, Small-eared Colilargo
  Oligoryzomys nigripes (Olfers, 1818) -- valid -- Black-footed Pygmy Rice Rat, Black-footed Colilargo
  Oligoryzomys vegetus (Bangs, 1902) -- valid -- Sprightly Pygmy Rice Rat, Sprightly Colilargo
  Oligoryzomys victus (Thomas, 1898) -- valid -- St. Vincent Pygmy Rice Rat, St. Vincent Colilargo, St. Vincent Rice Rat
  Ommatophoca Gray, 1844 -- valid
  Ommatophoca rossii Gray, 1844 -- valid -- Ross Seal, bigeyed seal
  Oncifelis Severtzov, 1858 -- invalid
  Oncifelis colocolo (Molina, 1782) -- invalid -- Pampas cat
  Oncifelis geoffroyi (d'Orbigny and Gervais, 1844) -- invalid -- Geoffroy's cat
  Oncifelis guigna (Molina, 1782) -- invalid -- kodkod
  Ondatra Link, 1795 -- valid -- muskrats, Muskrat
  Ondatra americana Tiedemann, 1808 -- invalid
  Ondatra zibethicus (Linnaeus, 1766) -- valid -- Muskbeaver, rat musqué, Muskrat, Common Muskrat
  Onychogalea Gray, 1841 -- valid -- nail-tailed wallabies
  Onychogalea fraenata (Gould, 1841) -- valid -- Bridled Nail-tail Wallaby, Bridled Nail-tailed Wallaby
  Onychogalea lunata (Gould, 1841) -- valid -- Crescent Nail-tail Wallaby, Crescent Nail-tailed Wallaby
  Onychogalea unguifera (Gould, 1840) -- valid -- Northern Nail-tail Wallaby, Northern Nail-tailed Wallaby
  Onychomys Baird, 1857 -- valid -- Grasshopper Mice
  Onychomys arenicola Mearns, 1896 -- valid -- Mearns's Grasshopper Mouse, Mearns' Grasshopper Mouse, Ratón-saltamontes arenero, Chihuahuan Grasshopper Mouse
  Onychomys leucogaster (Wied-Neuwied, 1841) -- valid -- Ratón-saltamontes norteño, Northern Grasshopper Mouse
  Onychomys torridus (Coues, 1874) -- valid -- Ratón-saltamontes sureño, Southern Grasshopper Mouse
  Orcaella Gray, 1866 -- valid
  Orcaella brevirostris (Owen in Gray, 1866) -- valid -- Irrawaddy Dolphin, Irrawady Dolphin, pesut
  Orcinus Fitzinger, 1860 -- valid -- killer whales
  Orcinus orca (Linnaeus, 1758) -- valid -- Killer Whale, orca, Orca común, épaulard
  Oreailurus Cabrera, 1940 -- invalid
  Oreailurus jacobita (Cornalia, 1865) -- invalid -- Andean cat
  Oreamnos Rafinesque, 1817 -- valid -- mountain goats
  Oreamnos americanus (Blainville, 1816) -- valid -- Rocky Mountain goat, mountain goat, Mountain Goat
  Oreonax Thomas, 1927 -- invalid
  Oreotragus A. Smith, 1834 -- valid
  Oreotragus oreotragus (Zimmermann, 1783) -- valid -- klipspringer, Klipspringer
  Ornithorhynchidae Gray, 1825 -- valid
  Ornithorhynchus Blumenbach, 1800 -- valid
  Ornithorhynchus anatinus (Shaw, 1799) -- valid -- duck-billed platypus, Platypus
  Orthogeomys Merriam, 1895 -- valid -- Giant Pocket Gophers
  Orthogeomys cavator (Bangs, 1902) -- valid -- Chiriqui Pocket Gopher
  Orthogeomys cherriei (J. A. Allen, 1893) -- valid -- Cherrie's Pocket Gopher
  Orthogeomys cuniculus Elliot, 1905 -- valid -- Oaxacan Pocket Gopher
  Orthogeomys dariensis (Goldman, 1912) -- valid -- Darien Pocket Gopher
  Orthogeomys grandis (Thomas, 1893) -- valid -- Giant Pocket Gopher
  Orthogeomys heterodus (Peters, 1865) -- valid -- Variable Pocket Gopher
  Orthogeomys hispidus (Le Conte, 1852) -- valid -- Hispid Pocket Gopher
  Orthogeomys lanius (Elliot, 1905) -- valid -- Big Pocket Gopher
  Orthogeomys matagalpae (J. A. Allen, 1910) -- valid -- Nicaraguan Pocket Gopher
  Orthogeomys thaeleri Alberico, 1990 -- valid -- Thaeler's Pocket Gopher
  Orthogeomys underwoodi (Osgood, 1931) -- valid -- Underwood's Pocket Gopher
  Orycteropodidae Gray, 1821 -- valid -- Aardvark
  Orycteropus G. Cuvier, 1798 -- valid
  Orycteropus afer (Pallas, 1766) -- valid -- Aardvark
  Oryctolagus Lilljeborg, 1873 -- valid -- Old World rabbits
  Oryctolagus cuniculus (Linnaeus, 1758) -- valid -- European Rabbit, Wild Rabbit, Conejo
  Oryctolagus cuniculus cuniculus (Linnaeus, 1758) -- valid
  Oryctolagus cuniculus huxleyi (Haeckel, 1874) -- invalid
  Oryx Blainville, 1816 -- valid -- Oryxes
  Oryx dammah (Cretzschmar, 1827) -- valid -- scimitar-horned oryx, Scimitar-horned Oryx
  Oryx gazella (Linnaeus, 1758) -- valid -- Gemsbok, gemsbok
  Oryx leucoryx (Pallas, 1777) -- valid -- Arabian oryx, Arabian Oryx
  Oryzomys Baird, 1857 -- valid -- Rice Rats
  Oryzomys albigularis (Tomes, 1860) -- invalid -- Tomes's Rice Rat, White-throated Oryzomys
  Oryzomys alfaroi (J. A. Allen, 1891) -- valid -- Alfaro's Oryzomys, Alfaro's Rice Rat
  Oryzomys argentatus Spitzer and Lazell, 1978 -- invalid
  Oryzomys auriventer Thomas, 1899 -- invalid -- Ecuadorean Rice Rat, Golden-bellied Oryzomys
  Oryzomys balneator Thomas, 1900 -- invalid -- Peruvian Rice Rat, Ecuadoran Oryzomys
  Oryzomys bolivaris J. A. Allen, 1901 -- invalid -- Bolivar Rice Rat, Long-whiskered Oryzomys
  Oryzomys buccinatus (Olfers, 1818) -- invalid -- Paraguayan Rice Rat
  Oryzomys capito (Olfers, 1818) -- invalid -- Large-headed Rice Rat
  Oryzomys chapmani Thomas, 1898 -- valid -- Chapman's Rice Rat, Chapman's Oryzomys
  Oryzomys couesi (Alston, 1877) -- valid -- Coues's Rice Rat, Coues' Rice Rat, Rata-arrocera de Coues, Coues' Oryzomys
  Oryzomys devius Bangs, 1902 -- invalid -- Boquete Rice Rat, Talamancan Oryzomys
  Oryzomys dimidiatus (Thomas, 1905) -- valid -- Thomas's Rice Rat, Nicaraguan Oryzomys, Nicaraguan Rice Rat
  Oryzomys galapagoensis (Waterhouse, 1839) -- invalid -- Galapagos Rice Rat, Galapagos Oryzomys
  Oryzomys gorgasi Hershkovitz, 1971 -- valid -- Gorgas's Rice Rat, Gorgas' Oryzomys
  Oryzomys hammondi (Thomas, 1913) -- invalid -- Hammond's Rice Rat, Hammond's Oryzomys
  Oryzomys intectus Thomas, 1921 -- invalid -- Colombian Rice Rat
  Oryzomys intermedius (Leche, 1886) -- invalid -- Intermediate Rice Rat
  Oryzomys keaysi J. A. Allen, 1900 -- invalid -- Keays's Rice Rat, Keays's Oryzomys
  Oryzomys kelloggi Avila-Pires, 1959 -- invalid -- Kellogg's Rice Rat
  Oryzomys lamia Thomas, 1901 -- invalid -- Monster Rice Rat, Buffy-sided Oryzomys
  Oryzomys legatus Thomas, 1925 -- invalid -- Big-headed Rice Rat, Tarija Oryzomys
  Oryzomys levipes Thomas, 1902 -- invalid -- Light-footed Rice Rat, Nimble-footed Oryzomys
  Oryzomys macconnelli Thomas, 1910 -- invalid -- MacConnell's Rice Rat, MacConnell's Oryzomys
  Oryzomys melanotis Thomas, 1893 -- valid -- Black-eared Oryzomys, Black-eared Rice Rat
  Oryzomys nelsoni Merriam, 1898 -- valid -- Nelson's Rice Rat, Nelson's Oryzomys
  Oryzomys nitidus (Thomas, 1884) -- invalid -- Elegant Rice Rat, Elegant Oryzomys
  Oryzomys oniscus Thomas, 1904 -- invalid -- Sowbug Rice Rat
  Oryzomys palustris (Harlan, 1837) -- valid -- Rata-arrocera de pantano, Marsh Rice Rat, Marsh Oryzomys
  Oryzomys palustris natator Chapman, 1893 -- invalid -- Slver Rice Rat
  Oryzomys polius Osgood, 1913 -- invalid -- Gray Rice Rat, Marañon Oryzomys
  Oryzomys ratticeps (Hensel, 1872) -- invalid -- Rat-headed Rice Rat
  Oryzomys rhabdops Merriam, 1901 -- valid -- Striped Rice Rat, Highland Oryzomys
  Oryzomys rostratus Merriam, 1901 -- valid -- Long-nosed Rice Rat, Long-nosed Oryzomys
  Oryzomys saturatior Merriam, 1901 -- valid -- Cloud Forest Rice Rat, Cloud Forest Oryzomys
  Oryzomys subflavus (Wagner, 1842) -- invalid -- Terraced Rice Rat, Flavescent Oryzomys
  Oryzomys talamancae J. A. Allen, 1891 -- invalid -- Talamancan Rice Rat, Transandean Oryzomys
  Oryzomys xantheolus Thomas, 1894 -- invalid -- Yellowish Rice Rat
  Oryzomys yunganus Thomas, 1902 -- invalid -- Yungas rice rat, Amazonian Oryzomys
  Oryzorictes A. Grandidier, 1870 -- valid
  Oryzorictes hova A. Grandidier, 1870 -- valid -- Mole-like Rice Tenrec, Hova rice tenrec
  Oryzorictes talpoides G. Grandidier and Petit, 1930 -- invalid -- molelike rice tenrec
  Oryzorictes tetradactylus A. Milne-Edwards and A. Grandidier, 1882 -- valid -- Four-toed Rice Tenrec
  Oryzorictinae Dobson, 1882 -- valid -- furred tenrecs
  Osbornictis J. A. Allen, 1919 -- invalid
  Osbornictis piscivora J. A. Allen, 1919 -- invalid -- aquatic genet
  Osgoodomys Hooper and Musser, 1964 -- valid
  Osgoodomys banderanus (J. A. Allen, 1897) -- valid -- Osgood's Deermouse, Michoacán Deer Mouse
  Otaria Péron, 1816 -- valid
  Otaria byronia (de Blainville, 1820) -- valid -- South American sealion, South American sea lion
  Otaria flavescens (Shaw, 1800) -- invalid -- South American Sealion
  Otaria stellerii Lesson, 1828 -- invalid
  Otariidae Gray, 1825 -- valid -- eared seals, sea lions
  Otariinae Gray, 1825 -- invalid
  Otocolobus Brandt, 1842 -- valid
  Otocolobus manul (Pallas, 1776) -- valid -- Pallas's cat, Pallas' cat, Manul, chat de Pallas, gato de Pallas, gato manul
  Otocyon Müller, 1836 -- valid
  Otocyon megalotis (Desmarest, 1822) -- valid -- Bat-eared Fox, Big-eared Fox
  Otolemur Coquerel, 1859 -- valid -- greater galagos
  Otolemur crassicaudatus (É. Geoffroy Saint-Hilaire, 1812) -- valid -- Thick-tailed Greater Galago, Brown Greater Galago
  Otolemur garnettii (Ogilby, 1838) -- valid -- Small-eared Galago, Northern Greater Galago, Garnett's Greater Galago
  Otomops Thomas, 1913 -- valid -- giant mastiff bats
  Otomops formosus Chasen, 1939 -- valid -- Java Mastiff Bat, Java Giant Mastiff Bat
  Otomops martiensseni (Matschie, 1897) -- valid -- Large-eared Free-tailed Bat, Large-eared Giant Mastiff Bat
  Otomops papuensis Lawrence, 1948 -- valid -- Big-eared Mastiff Bat, Papuan Giant Mastiff Bat
  Otomops secundus Hayman, 1952 -- valid -- Mantled Mastiff Bat, Mantled Giant Mastiff Bat
  Otomops wroughtoni (Thomas, 1913) -- valid -- Wroughton's Free-tailed Bat, Wroughton's Giant Mastiff Bat
  Otomyinae Thomas, 1897 -- valid
  Otomys F. Cuvier, 1824 -- valid -- Vlei Rats
  Otomys anchietae (Bocage, 1882) -- valid -- Angolan Vlei Rat
  Otomys angoniensis Wroughton, 1906 -- valid -- Angoni Vlei Rat
  Otomys denti Thomas, 1906 -- valid -- Dent's Vlei Rat
  Otomys irroratus (Brants, 1827) -- valid -- vlei rat, Southern African Vlei Rat
  Otomys laminatus Thomas and Schwann, 1905 -- valid -- Laminate Vlei Rat, KwaZulu Vlei Rat
  Otomys maximus Roberts, 1924 -- valid -- Large Vlei Rat, Okavango Vlei Rat
  Otomys occidentalis Dieterlen and Van der Straeten, 1992 -- valid -- Western Vlei Rat
  Otomys saundersiae Roberts, 1929 -- valid -- Saunders's vlei rat, Saunders' Vlei Rat
  Otomys sloggetti Thomas, 1902 -- invalid -- Sloggett's Vlei Rat
  Otomys tropicalis Thomas, 1902 -- valid -- Tropical Vlei Rat, East African Vlei Rat
  Otomys typus (Heuglin, 1877) -- valid -- Typical Vlei Rat, Ethiopian Vlei Rat
  Otomys unisulcatus F. Cuvier, 1829 -- invalid -- Bush Vlei Rat
  Otonycteris Peters, 1859 -- valid
  Otonycteris hemprichii Peters, 1859 -- valid -- Desert Long-eared Bat, Hemprich's Desert Bat, Common Desert Long-eared Bat
  Otonyctomys Anthony, 1932 -- valid -- Yucatán Vesper Rat
  Otonyctomys hatti Anthony, 1932 -- valid -- Hatt's Vesper Rat, Yucatán Vesper Rat
  Otopteropus Kock, 1969 -- valid
  Otopteropus cartilagonodus Kock, 1969 -- valid -- Luzon Fruit Bat, Luzon Pygmy Fruit Bat
  Ototylomys Merriam, 1901 -- valid -- Big-eared Climbing Rats
  Ototylomys phyllotis Merriam, 1901 -- valid -- Big-eared Climbing Rat
  Ourebia Laurillard, 1842 -- valid
  Ourebia ourebi (Zimmermann, 1783) -- valid -- Oribi, oribi
  Ovibos Blainville, 1816 -- valid -- muskoxen
  Ovibos moschatus (Zimmermann, 1780) -- valid -- oomingmak, muskox, boeuf musqué, Muskox
  Ovis Linnaeus, 1758 -- valid -- sheep
  Ovis ammon (Linnaeus, 1758) -- valid -- argali, Argali
  Ovis aries Linnaeus, 1758 -- valid -- Red Sheep, domestic sheep, mouflon, sheep (feral)
  Ovis aries musimon (Pallas, 1811) -- valid
  Ovis aries ophion Blyth, 1841 -- valid -- urial
  Ovis canadensis Shaw, 1804 -- valid -- bighorn sheep, Borrego cimarrón, Bighorn Sheep
  Ovis dalli Nelson, 1884 -- valid -- Dall's sheep, Fannin's sheep, Stone's sheep, dall sheep, Dall's Sheep
  Ovis musimon (Pallas, 1811) -- invalid
  Ovis musimon musimon (Pallas, 1811) -- invalid
  Ovis musimon ophion Blyth, 1841 -- invalid -- urial
  Ovis nivicola Eschscholtz, 1829 -- valid -- Snow Sheep, snow sheep
  Ovis ophion Blyth, 1841 -- invalid
  Ovis orientalis Gmelin, 1774 -- invalid -- mouflon (western Asia)
  Ovis vignei Blyth, 1841 -- invalid -- urial
  Oxymycterus Waterhouse, 1837 -- valid
  Oxymycterus akodontius Thomas, 1921 -- valid -- Argentine Hocicudo, Akodont-like Hocicudo
  Oxymycterus angularis Thomas, 1909 -- valid -- Angular Hocicudo
  Oxymycterus delator Thomas, 1903 -- valid -- Spy Hocicudo, Paraguayan Hocicudo
  Oxymycterus hiska Hinojosa, S. Anderson and Patton, 1987 -- valid -- Small Hocicudo
  Oxymycterus hispidus Pictet, 1843 -- valid -- Hispid Hocicudo
  Oxymycterus hucucha Hinojosa, S. Anderson and Patton, 1987 -- valid -- Quechuan Hocicudo
  Oxymycterus iheringi Thomas, 1896 -- invalid -- Ihering's Hocicudo
  Oxymycterus inca Thomas, 1900 -- valid -- Incan Hocicudo, Inca Hocicudo
  Oxymycterus nasutus (Waterhouse, 1837) -- valid -- Long-nosed Hocicudo
  Oxymycterus paramensis Thomas, 1902 -- valid -- Paramo Hocicudo, Yungas Hocicudo
  Oxymycterus roberti Thomas, 1901 -- valid -- Robert's Hocicudo
  Oxymycterus rufus (Fischer, 1814) -- valid -- Red Hocicudo, Rufous Hocicudo
  Ozotoceros Ameghino, 1891 -- valid
  Ozotoceros bezoarticus (Linnaeus, 1758) -- valid -- Pampas deer
  Pachyuromys Lataste, 1880 -- valid
  Pachyuromys duprasi Lataste, 1880 -- valid -- Fat-tailed Jird, Fat-tailed Gerbil
  Paguma Gray, 1831 -- valid
  Paguma larvata (C. E. H. Smith, 1827) -- valid -- Masked Palm Civet
  Palawanomys Musser and Newcomb, 1983 -- valid
  Palawanomys furvus Musser and Newcomb, 1983 -- valid -- Palawan Mountain Rat
  Pan Oken, 1816 -- valid -- chimpanzees
  Pan paniscus Schwarz, 1929 -- valid -- Pygmy Chimpanzee, Bonobo
  Pan troglodytes (Blumenbach, 1775) -- valid -- Chimpanzee, Common Chimpanzee
  Panthera Oken, 1816 -- valid -- roaring cats
  Panthera leo (Linnaeus, 1758) -- valid -- Lion, Lion, León
  Panthera leo leo (Linnaeus, 1758) -- valid -- Barbary lion, Atlas lion
  Panthera leo persica (Meyer, 1826) -- invalid -- Asiatic lion
  Panthera onca (Linnaeus, 1758) -- valid -- Jaguar, Jaguar, Jaguar, tigre real, yaguar, tigre americano, otorongo
  Panthera pardus (Linnaeus, 1758) -- valid -- Leopard, Panther, Leopard, panthère, Leopardo, pantera
  Panthera tigris (Linnaeus, 1758) -- valid -- Tiger, Tigre, Tigre
  Panthera tigris longipilis (Fitzinger, 1868) -- invalid -- Siberian tiger
  Panthera tigris tigris (Linnaeus, 1758) -- valid -- Bengal tiger
  Pantherinae Pocock, 1917 -- valid
  Pantholops Hodgson, 1834 -- valid
  Pantholops hodgsonii (Abel, 1826) -- valid -- chiru, Chiru, Tibetan antelope
  Papagomys Sody, 1941 -- valid
  Papagomys armandvillei (Jentink, 1892) -- valid -- Armandville's Papagomys
  Papagomys theodorverhoeveni Musser, 1981 -- valid -- Theodore Verhoeven's Papagomys
  Papio Erxleben, 1777 -- valid -- baboons
  Papio hamadryas (Linnaeus, 1758) -- valid -- Hamadryas Baboon
  Pappogeomys Merriam, 1895 -- valid -- tuzas, Mexican Pocket Gophers
  Pappogeomys alcorni Russell, 1957 -- invalid -- Alcorn's Pocket Gopher
  Pappogeomys bulleri (Thomas, 1892) -- valid -- Buller's Pocket Gopher
  Pappogeomys castanops (Baird, 1852) -- invalid -- Yellow-faced Pocket Gopher
  Pappogeomys fumosus (Merriam, 1892) -- invalid -- Smoky Pocket Gopher
  Pappogeomys gymnurus (Merriam, 1892) -- invalid -- Llano Pocket Gopher
  Pappogeomys merriami (Thomas, 1893) -- invalid -- Merriam's Pocket Gopher
  Pappogeomys neglectus (Merriam, 1902) -- invalid -- Querétaro Pocket Gopher
  Pappogeomys tylorhinus (Merriam, 1895) -- invalid -- Naked-nosed Pocket Gopher
  Pappogeomys zinseri (Goldman, 1939) -- invalid -- Zinser's Pocket Gopher
  Paracoelops Dorst, 1947 -- invalid
  Paracoelops megalotis Dorst, 1947 -- invalid -- Vietnam leaf-nosed bat, Vietnamese Leaf-nosed Bat
  Paracrocidura Heim de Balsac, 1956 -- valid
  Paracrocidura graueri Hutterer, 1986 -- valid -- Grauer's Large-headed Shrew, Grauer's Shrew
  Paracrocidura maxima Heim de Balsac, 1959 -- valid -- Greater Large-headed Shrew, Greater Shrew
  Paracrocidura schoutedeni Heim de Balsac, 1956 -- valid -- Lesser Large-headed Shrew, Schouteden's Shrew
  Paracynictis Pocock, 1916 -- valid
  Paracynictis selousi (de Winton, 1896) -- valid -- Selous's Mongoose, Selous' Mongoose
  Paradipodinae Pavlinov and Shenbrot, 1983 -- invalid
  Paradipus Vinogradov, 1930 -- valid -- Comb-toed Jerboas
  Paradipus ctenodactylus (Vinogradov, 1929) -- valid -- Comb-toed Jerboa
  Paradoxurinae Gray, 1865 -- valid -- palm civets, Binturong
  Paradoxurus F. Cuvier, 1821 -- valid
  Paradoxurus hermaphroditus (Pallas, 1777) -- valid -- Asian Palm Civet, Common Palm Civet
  Paradoxurus jerdoni Blanford, 1885 -- valid -- Jerdon's Palm Civet, Brown Palm Civet
  Paradoxurus zeylonensis (Schreber, 1778) -- valid -- Golden Palm Civet
  Parahyaena Hendey, 1974 -- valid
  Parahyaena brunnea (Thunberg, 1820) -- valid -- brown hyaena, Brown Hyena
  Parahydromys Poche, 1906 -- valid
  Parahydromys asper (Thomas, 1906) -- valid -- New Guinea Waterside Rat
  Paraleptomys Tate and Archbold, 1941 -- valid -- Montane Water Rats
  Paraleptomys rufilatus Osgood, 1945 -- valid -- Northern Paraleptomys
  Paraleptomys wilhelmina Tate and Archbold, 1941 -- valid -- Central Cordilleran Paraleptomys
  Parantechinus Tate, 1947 -- valid
  Parantechinus apicalis (Gray, 1842) -- valid -- Southern Dibbler, Dibbler
  Parantechinus bilarni (Johnson, 1954) -- invalid
  Paranyctimene Tate, 1942 -- valid
  Paranyctimene raptor Tate, 1942 -- valid -- unstriped tube-nosed bat, Unstriped Tube-nosed Fruit Bat
  Parascalops True, 1894 -- valid -- hairy-tailed moles
  Parascalops breweri (Bachman, 1842) -- valid -- Brewer's mole, taupe à queue velue, Hairy-tailed Mole
  Parascaptor Gill, 1875 -- valid
  Parascaptor leucura (Blyth, 1850) -- valid -- White-tailed Mole
  Paraxerus Forsyth Major, 1893 -- valid -- Bush Squirrels
  Paraxerus alexandri (Thomas and Wroughton, 1907) -- valid -- Alexander's Bush Squirrel
  Paraxerus boehmi (Reichenow, 1886) -- valid -- Boehm's Bush Squirrel
  Paraxerus cepapi (A. Smith, 1836) -- valid -- Smith's Bush Squirrel
  Paraxerus cooperi Hayman, 1950 -- valid -- Cooper's Mountain Squirrel
  Paraxerus flavovittis (Peters, 1852) -- valid -- Striped Bush Squirrel
  Paraxerus lucifer (Thomas, 1897) -- valid -- Black and Red Bush Squirrel, Black-and-Red Bush Squirrel
  Paraxerus ochraceus (Huet, 1880) -- valid -- Ochre Bush Squirrel
  Paraxerus palliatus (Peters, 1852) -- valid -- Red Bush Squirrel
  Paraxerus poensis (A. Smith, 1830) -- valid -- Green Bush Squirrel
  Paraxerus vexillarius (Kershaw, 1923) -- valid -- Svynnerton's Bush Squirrel, Swynnerton's Bush Squirrel
  Paraxerus vincenti Hayman, 1950 -- valid -- Vincent's Bush Squirrel
  Pardofelis Severtzov, 1858 -- valid -- Bay Cat
  Pardofelis marmorata (Martin, 1837) -- valid -- Marbled Cat, Chat marbré, Gato jaspeado
  Parotomys Thomas, 1918 -- valid -- Whistling Rats
  Parotomys brantsii (A. Smith, 1834) -- valid -- Brants's Whistling Rat
  Parotomys littledalei Thomas, 1918 -- valid -- Littledale's Whistling Rat
  Paruromys Ellerman, 1954 -- valid -- Sulawesi Giant Rats
  Paruromys dominator (Thomas, 1921) -- valid -- Giant Sulawesi Rat
  Paruromys ursinus (Sody, 1941) -- invalid
  Paucituberculata Ameghino, 1894 -- valid
  Paulamys Musser, 1986 -- valid
  Paulamys naso (Musser, 1981) -- valid -- Paula's Long-nosed Rat
  Pecari Reichenbach, 1835 -- valid
  Pecari tajacu (Linnaeus, 1758) -- valid -- Collared Peccary, javelina, collared peccary
  Pectinator Blyth, 1856 -- valid
  Pectinator spekei Blyth, 1856 -- valid -- Speke's Pectinator, Speke's Gundi, Bushy-tailed Gundi
  Pedestes Gray, 1843 -- invalid
  Pedetes Illiger, 1811 -- valid -- Spring Hares
  Pedetes capensis (Forster, 1778) -- valid -- South African Spring Hare
  Pedetidae Gray, 1825 -- valid -- Spring Hares
  Pedomys Baird, 1857 -- invalid
  Pelea Gray, 1851 -- valid
  Pelea capreolus (Forster, 1790) -- valid -- Vaal Rhebok, common rhebok
  Peleinae Gray, 1872 -- invalid
  Pelomys Peters, 1852 -- valid -- Groove-toothed Swamp Rats
  Pelomys campanae (Huet, 1888) -- valid -- Angolan Pelomys
  Pelomys fallax (Peters, 1852) -- valid -- East African Pelomys
  Pelomys hopkinsi Hayman, 1955 -- valid -- Hopkins' Pelomys
  Pelomys isseli (de Beaux, 1924) -- valid -- Lake Victoria Pelomys
  Pelomys minor Cabrera and Ruxton, 1926 -- valid -- Least Pelomys
  Pentalagus Lyon, 1904 -- valid
  Pentalagus furnessi (Stone, 1900) -- valid -- Ryukyu Rabbit, Amami Rabbit
  Penthetor K. Andersen, 1912 -- valid
  Penthetor lucasi (Dobson, 1880) -- invalid -- Lucas's Short-nosed Fruit Bat
  Peponocephala Nishiwaki and Norris, 1966 -- valid -- melon-headed whales
  Peponocephala electra (Gray, 1846) -- valid -- Melon-headed Whale, Calderón, electra dolphin
  Peramelemorphia Ameghino, 1889 -- valid
  Perameles É. Geoffroy Saint-Hilaire, 1804 -- valid -- long-nosed bandicoots
  Perameles bougainville Quoy and Gaimard, 1824 -- valid -- Western Barred Bandicoot
  Perameles eremiana Spencer, 1897 -- valid -- Desert Bandicoot
  Perameles gunnii Gray, 1838 -- valid -- Eastern Barred Bandicoot
  Perameles nasuta É. Geoffroy Saint-Hilaire, 1804 -- valid -- Long-nosed Bandicoot
  Peramelidae Gray, 1825 -- valid -- bandicoots
  Perissodactyla Owen, 1848 -- valid -- antas, Odd-toed Ungulates
  Perodicticus Bennett, 1831 -- valid -- pottos
  Perodicticus potto (Müller, 1766) -- valid -- West African Potto, Potto
  Perodipus heermanni morroensis Merriam, 1907 -- invalid
  Perodipus ingens Merriam, 1904 -- invalid
  Perodipus streatori Merriam, 1894 -- invalid
  Perognathinae Coues, 1875 -- valid
  Perognathus Wied-Neuwied, 1839 -- valid -- pocket mice, Silky Pocket Mice
  Perognathus alticola Rhoads, 1894 -- invalid -- White-eared Pocket Mouse
  Perognathus amplus Osgood, 1900 -- valid -- Ratón-de abazones de Arizona, Arizona Pocket Mouse
  Perognathus baileyi Merriam, 1894 -- invalid -- Bailey's pocket mouse
  Perognathus californicus Merriam, 1889 -- invalid -- California pocket mouse
  Perognathus fallax Merriam, 1889 -- invalid -- San Diego pocket mouse
  Perognathus fasciatus Wied-Neuwied, 1839 -- valid -- Olive-backed Pocket Mouse
  Perognathus flavescens Merriam, 1889 -- valid -- Ratón-de abazones de pradera, Plains Pocket Mouse
  Perognathus flavus Baird, 1855 -- valid -- Ratón-de abazones sedoso, Silky Pocket Mouse
  Perognathus formosus Merriam, 1889 -- invalid -- long-tailed pocket mouse
  Perognathus hispidus Baird, 1858 -- invalid -- hispid pocket mouse
  Perognathus inornatus Merriam, 1889 -- valid -- San Joaquin Pocket Mouse
  Perognathus intermedius Merriam, 1889 -- invalid -- rock pocket mouse
  Perognathus longimembris (Coues, 1875) -- valid -- Ratón-de abazones menor, Little Pocket Mouse
  Perognathus longimembris longimembris (Coues, 1875) -- valid
  Perognathus merriami J. A. Allen, 1892 -- valid -- Ratón-de abazones de Merriam, Merriam's Pocket Mouse
  Perognathus nelsoni Merriam, 1894 -- invalid -- Nelson's pocket mouse
  Perognathus parvus (Peale, 1848) -- valid -- Great Basin Pocket Mouse
  Perognathus penicillatus Woodhouse, 1852 -- invalid -- desert pocket mouse
  Perognathus spinatus Merriam, 1889 -- invalid -- spiny pocket mouse
  Perognathus xanthanotus Grinnell, 1912 -- invalid
  Peromyscus Gloger, 1841 -- valid -- Deer Mice, White-footed Mice
  Peromyscus attwateri J. A. Allen, 1895 -- valid -- Texas mouse, Texas Deermouse, Attwater's Mouse
  Peromyscus aztecus (Saussure, 1860) -- valid -- Aztec Deermouse, Aztec Mouse
  Peromyscus boylii (Baird, 1855) -- valid -- Ratón arbustero, Brush Mouse, Brush Deermouse
  Peromyscus bullatus Osgood, 1904 -- valid -- Perote Mouse, Perote Deermouse
  Peromyscus californicus (Gambel, 1848) -- valid -- Ratón californiano, California Deermouse, California Mouse
  Peromyscus caniceps Burt, 1932 -- valid -- Monserrat Island Deermouse, Burt's Deer Mouse
  Peromyscus crinitus (Merriam, 1891) -- valid -- Ratón de cañada, Canyon Mouse, Canyon Deermouse
  Peromyscus dickeyi Burt, 1932 -- valid -- Dickey's deer mouse, Dickey's Deermouse
  Peromyscus difficilis (J. A. Allen, 1891) -- valid -- Zacatecan Deer Mouse, Ratón de roca, Southern Rock Deermouse, Rock Mouse
  Peromyscus eremicus (Baird, 1857) -- valid -- Ratón de cactus, Cactus Mouse, Cactus Deermouse
  Peromyscus eva Thomas, 1898 -- valid -- Southern Baja Deermouse, Eva's Desert Mouse
  Peromyscus furvus J. A. Allen and Chapman, 1897 -- valid -- Blackish Deer Mouse, Blackish Deermouse
  Peromyscus gossypinus (Le Conte, 1853) -- valid -- Cotton Mouse, Cotton Deermouse
  Peromyscus gossypinus allapaticola Schwartz, 1952 -- invalid -- Key Largo cotton mouse
  Peromyscus grandis Goodwin, 1932 -- valid -- Large Deermouse, Big Deer Mouse
  Peromyscus gratus Merriam, 1898 -- valid -- Merriam's Piñon Mouse, Osgood's Mouse, Ratón de Tlalpan, Saxicoline Deermouse
  Peromyscus guardia Townsend, 1912 -- valid -- Angel Island Mouse, La Guarda Deermouse
  Peromyscus guatemalensis Merriam, 1898 -- valid -- Guatemalan Deer Mouse, Guatemalan Deermouse
  Peromyscus gymnotis Thomas, 1894 -- valid -- Naked-eared Deer Mouse, Naked-eared Deermouse
  Peromyscus hooperi Lee and Schmidly, 1977 -- valid -- Hooper's Mouse, Hooper's Deermouse
  Peromyscus interparietalis Burt, 1932 -- valid -- San Lorenzo Mouse, San Lorenzo Deermouse
  Peromyscus keeni (Rhoads, 1894) -- valid -- Keen's Mouse, Northwestern Deermouse
  Peromyscus leucocephalus A. H. Howell, 1920 -- invalid
  Peromyscus leucopus (Rafinesque, 1818) -- valid -- souris à pattes blanches, White-footed Deermouse, White-footed Mouse
  Peromyscus levipes Merriam, 1898 -- valid -- Nimble-footed Mouse, Nimble-footed Deermouse
  Peromyscus madrensis Merriam, 1898 -- valid -- Tres Marias Island mouse, Tres Marías Deermouse
  Peromyscus maniculatus (Wagner, 1845) -- valid -- Ratón norteamericano, souris sylvestre, Deer Mouse, North American Deermouse
  Peromyscus mayensis Carleton and Huckaby, 1975 -- valid -- Maya Mouse, Mayan Deermouse, Mayan Mouse
  Peromyscus megalops Merriam, 1898 -- valid -- Brown Deer Mouse, Broad-faced Deermouse
  Peromyscus mekisturus Merriam, 1898 -- valid -- Puebla Deer Mouse, Puebla Deermouse
  Peromyscus melanocarpus Osgood, 1904 -- valid -- Black-wristed Deermouse, Zempoaltepec Deer Mouse
  Peromyscus melanophrys (Coues, 1874) -- valid -- Plateau Mouse, Plateau Deermouse
  Peromyscus melanotis J. A. Allen and Chapman, 1897 -- valid -- Ratón orejas negras, Black-eared Deermouse, Black-eared Mouse
  Peromyscus melanurus Osgood, 1909 -- valid -- Black-tailed Mouse, Black-tailed Deermouse
  Peromyscus merriami Mearns, 1896 -- valid -- Mesquite Mouse, Ratón de Merriam, Merriam's Mouse, Merriam's Deermouse
  Peromyscus mexicanus (Saussure, 1860) -- valid -- Mexican Deer Mouse, Mexican Deermouse
  Peromyscus nasutus (J. A. Allen, 1891) -- valid -- Northern Rock Mouse, Ratón de Nuevo Mexico, Rock Mouse, Northern Rock Deermouse
  Peromyscus nuttalli (Harlan, 1832) -- invalid
  Peromyscus ochraventer Baker, 1951 -- valid -- El Carrizo Deer Mouse, El Carrizo Deermouse
  Peromyscus oreas Bangs, 1898 -- invalid -- Columbian mouse
  Peromyscus pectoralis Osgood, 1904 -- valid -- Ratón tobillo blanco, White-ankled Deermouse, White-ankled Mouse
  Peromyscus pembertoni Burt, 1932 -- valid -- Pemberton's deer mouse, Pemberton's Deermouse
  Peromyscus perfulvus Osgood, 1945 -- valid -- Tawny Deermouse, Marsh Mouse
  Peromyscus phasma Bangs, 1898 -- invalid
  Peromyscus polionotus (Wagner, 1843) -- valid -- Oldfield Mouse, Oldfield Deermouse
  Peromyscus polionotus allophrys Bowen, 1968 -- invalid -- Choctawhatchee beach mouse
  Peromyscus polionotus ammobates Bowen, 1968 -- invalid -- Alabama beach mouse
  Peromyscus polionotus niveiventris (Chapman, 1889) -- invalid -- southeastern beach mouse
  Peromyscus polionotus trissyllepsis Bowen, 1968 -- invalid -- Perdido Key beach mouse
  Peromyscus polius Osgood, 1904 -- valid -- Chihuahuan Mouse, Chihuahuan Deermouse
  Peromyscus pseudocrinitus Burt, 1932 -- valid -- Coronados Deermouse, False Canyon Mouse
  Peromyscus sejugis Burt, 1932 -- valid -- Santa Cruz mouse, Santa Cruz Island Mouse, Santa Cruz Deermouse
  Peromyscus simulus Osgood, 1904 -- valid -- Nayarit mouse, Sinaloan Deermouse
  Peromyscus sitkensis Merriam, 1897 -- invalid -- Sitka mouse
  Peromyscus slevini Mailliard, 1924 -- valid -- Catalina Deermouse, Slevin's Mouse
  Peromyscus spicilegus J. A. Allen, 1897 -- valid -- Gleaning Mouse, Gleaning Deermouse
  Peromyscus stephani Townsend, 1912 -- valid -- San Esteban Deermouse, San Esteban Island Mouse
  Peromyscus stirtoni Dickey, 1928 -- valid -- Stirton's deer mouse, Stirton's Deermouse
  Peromyscus subgriseus rhoadsi Bangs, 1898 -- invalid
  Peromyscus truei (Shufeldt, 1885) -- valid -- piñon mouse, Pinyon Mouse, Ratón piñonero, Piñon Deermouse
  Peromyscus winkelmanni Carleton, 1977 -- valid -- Winkelmann's mouse, Coalcomán Deermouse, Forest Mouse
  Peromyscus yucatanicus J. A. Allen and Chapman, 1897 -- valid -- Yucatan deer mouse, Yucatán Deermouse
  Peromyscus zarhynchus Merriam, 1898 -- valid -- Chiapan deer mouse, Chiapan Deermouse
  Peropteryx Peters, 1867 -- valid -- dog-like bats
  Peropteryx kappleri Peters, 1867 -- valid -- Greater Dog-like Bat
  Peropteryx leucoptera Peters, 1867 -- valid -- White-winged Dog-like Bat
  Peropteryx macrotis (Wagner, 1843) -- valid -- Lesser Dog-like Bat
  Peroryctes Thomas, 1906 -- valid -- New Guinean long-nosed bandicoots
  Peroryctes broadbenti (Ramsay, 1879) -- valid -- Giant Bandicoot
  Peroryctes raffrayana (A. Milne-Edwards, 1878) -- valid -- Raffray's Bandicoot
  Peroryctidae Groves and Flannery, 1990 -- invalid
  Petauridae Bonaparte, 1838 -- valid -- striped possums, Leadbeater's Possum, lesser gliders
  Petaurillus Thomas, 1908 -- valid -- Pygmy Flying Squirrels
  Petaurillus emiliae Thomas, 1908 -- valid -- Lesser Pygmy Flying Squirrel
  Petaurillus hosei (Thomas, 1900) -- valid -- Hose's Pygmy Flying Squirrel
  Petaurillus kinlochii (Robinson and Kloss, 1911) -- valid -- Selangor Pygmy Flying Squirrel
  Petaurista Link, 1795 -- valid -- Giant Flying Squirrels
  Petaurista alborufus (Milne-Edwards, 1870) -- valid -- Red and White Giant Flying Squirrel, Red-and-White Giant Flying Squirrel
  Petaurista elegans (Müller, 1840) -- valid -- Spotted Giant Flying Squirrel
  Petaurista leucogenys (Temminck, 1827) -- valid -- Japanese Giant Flying Squirrel
  Petaurista magnificus (Hodgson, 1836) -- valid -- Hodgson's Giant Flying Squirrel
  Petaurista nobilis (Gray, 1842) -- valid -- Bhutan Giant Flying Squirrel
  Petaurista petaurista (Pallas, 1766) -- valid -- Red Giant Flying Squirrel
  Petaurista philippensis (Elliot, 1839) -- valid -- Indian Giant Flying Squirrel
  Petaurista xanthotis (Milne-Edwards, 1872) -- valid -- Chinese Giant Flying Squirrel
  Petauroides Thomas, 1888 -- valid
  Petauroides volans (Kerr, 1792) -- valid -- Greater Glider, Southern Greater Glider
  Petaurus Shaw, 1791 -- valid
  Petaurus abidi Ziegler, 1981 -- valid -- Northern Glider
  Petaurus australis Shaw, 1791 -- valid -- Yellow-bellied Glider
  Petaurus breviceps Waterhouse, 1838 -- valid -- Sugar Glider
  Petaurus gracilis (De Vis, 1883) -- valid -- Ebony Glider, Mahogany Glider
  Petaurus norfolcensis (Kerr, 1792) -- valid -- Squirrel Glider
  Petinomys Thomas, 1908 -- valid -- Dwarf Flying Squirrels
  Petinomys crinitus (Hollister, 1911) -- valid -- Mindanao Flying Squirrel, Basilan Flying Squirrel
  Petinomys fuscocapillus (Jerdon, 1847) -- valid -- Travancore Flying Squirrel
  Petinomys genibarbis (Horsfield, 1822) -- valid -- Whiskered Flying Squirrel
  Petinomys hageni (Jentink, 1888) -- valid -- Hagen's Flying Squirrel
  Petinomys lugens (Thomas, 1895) -- valid -- Siberut Flying Squirrel, Sipora Flying Squirrel
  Petinomys sagitta (Linnaeus, 1766) -- invalid -- arrow flying squirrel
  Petinomys setosus (Temminck, 1844) -- valid -- Temminck's Flying Squirrel
  Petinomys vordermanni (Jentink, 1890) -- valid -- Vordermann's Flying Squirrel
  Petrobates Heuglin, 1860 -- invalid
  Petrodromus Peters, 1846 -- valid
  Petrodromus tetradactylus Peters, 1846 -- valid -- Four-toed Elephant Shrew, Four-toed Sengi
  Petrogale Gray, 1837 -- valid -- rock wallabies
  Petrogale assimilis Ramsay, 1877 -- valid -- Allied Rock-wallaby, Allied Rock Wallaby
  Petrogale brachyotis (Gould, 1840) -- valid -- Short-eared Rock-wallaby, Short-eared Rock Wallaby
  Petrogale burbidgei Kitchener and Sanson, 1978 -- valid -- Monjon
  Petrogale concinna Gould, 1842 -- valid -- Nabarlek
  Petrogale godmani Thomas, 1923 -- valid -- Godman's Rock-wallaby, Godman's Rock Wallaby
  Petrogale inornata Gould, 1842 -- valid -- Unadorned Rock-wallaby, Unadorned Rock Wallaby
  Petrogale lateralis Gould, 1842 -- valid -- Black-flanked Rock-wallaby, Black-flanked Rock Wallaby
  Petrogale penicillata (Gray, 1827) -- valid -- Brush-tailed Rock Wallaby, Brush-tailed Rock-wallaby
  Petrogale persephone Maynes, 1982 -- valid -- Proserpine Rock-wallaby, Proserpine Rock Wallaby
  Petrogale rothschildi Thomas, 1904 -- valid -- Rothschild's Rock-wallaby, Rothschild's Rock Wallaby
  Petrogale xanthopus Gray, 1854 -- valid -- Yellow-footed Rock-wallaby, Yellow-footed Rock Wallaby
  Petromuridae Tullberg, 1899 -- valid -- noki
  Petromus A. Smith, 1831 -- valid -- dassie rat, noki
  Petromus typicus A. Smith, 1831 -- valid -- Dassie Rat, Noki, Rock Rat
  Petromyscinae Roberts, 1951 -- valid
  Petromyscus Thomas, 1926 -- valid -- Rock Mice
  Petromyscus barbouri Shortridge and Carter, 1938 -- valid -- Barbour's Rock Mouse, Barbour's Pygmy Rock Mouse
  Petromyscus collinus (Thomas and Hinton, 1925) -- valid -- Pygmy Rock Mouse
  Petromyscus monticularis (Thomas and Hinton, 1925) -- valid -- Brukkaros Pygmy Rock Mouse
  Petromyscus shortridgei Thomas, 1926 -- valid -- Shortridge's rock mouse, Shortridge's Pygmy Rock Mouse
  Petropseudes Thomas, 1923 -- valid
  Petropseudes dahli (Collett, 1895) -- valid -- Rock-haunting Ringtail, Rock Ring-tailed Possum
  Petterus Groves and Eaglen, 1988 -- invalid
  Phacochoerinae Gray, 1868 -- invalid
  Phacochoerus F. Cuvier, 1826 -- valid -- warthogs
  Phacochoerus aethiopicus (Pallas, 1766) -- valid -- Desert Warthog, desert warthog
  Phacochoerus africanus (Gmelin, 1788) -- valid -- Common Wart-hog, warthog
  Phaenomys Thomas, 1917 -- valid
  Phaenomys ferrugineus (Thomas, 1894) -- valid -- Rio de Janeiro arboreal rat, Rusty Phaenomys
  Phalanger Storr, 1780 -- valid -- cuscuses
  Phalanger carmelitae Thomas, 1898 -- valid -- Mountain Cuscus
  Phalanger lullulae Thomas, 1896 -- valid -- Woodlark Cuscus
  Phalanger matanim Flannery, 1987 -- valid -- Telefomin Cuscus
  Phalanger orientalis (Pallas, 1766) -- valid -- Northern Common Cuscus
  Phalanger ornatus (Gray, 1860) -- valid -- Ornate Cuscus, Moluccan Cuscus
  Phalanger pelengensis Tate, 1945 -- valid -- Banggai Cuscus, Peleng Cuscus
  Phalanger rothschildi Thomas, 1898 -- valid -- Rothschild's Cuscus, Obi Cuscus
  Phalanger sericeus Thomas, 1907 -- valid -- Silky Cuscus
  Phalanger vestitus (A. Milne-Edwards, 1877) -- valid -- Stein's Cuscus
  Phalangeridae Thomas, 1888 -- valid -- brushtail possums, cuscuses, scaly-tailed possum
  Phaner Gray, 1870 -- valid -- fork-marked lemurs
  Phaner furcifer (de Blainville, 1839) -- valid -- Masoala Fork-crowned Lemur, Masoala Fork-marked Lemur
  Phanerinae Rumpler, 1974 -- invalid
  Pharotis Thomas, 1914 -- valid
  Pharotis imogene Thomas, 1914 -- valid -- New Guinea big-eared bat, Thomas's Big-eared Bat
  Phascogale Temminck, 1824 -- valid -- tuans, brush-tailed marsupial 'mice'
  Phascogale calura Gould, 1844 -- valid -- Red-tailed Phascogale
  Phascogale tapoatafa (Meyer, 1793) -- valid -- Brush-tailed Phascogale, Common Brush-tailed Phascogale
  Phascolarctidae Owen, 1839 -- valid -- koalas
  Phascolarctos de Blainville, 1816 -- valid -- koalas
  Phascolarctos cinereus (Goldfuss, 1817) -- valid -- Koala
  Phascolosorex Matschie, 1916 -- valid
  Phascolosorex doriae (Thomas, 1886) -- valid -- Red-bellied Marsupial Shrew, Red-bellied Phascogale
  Phascolosorex dorsalis (Peters and Doria, 1876) -- valid -- Narrow-striped Marsupial Shrew, Narrow-striped Dasyure
  Phaulomys Thomas, 1905 -- invalid
  Phaulomys andersoni (Thomas, 1905) -- invalid -- Japanese Red-backed Vole
  Phaulomys smithii (Thomas, 1905) -- invalid -- Smith's Vole
  Phenacomys Merriam, 1889 -- valid -- Heather Voles
  Phenacomys intermedius Merriam, 1889 -- valid -- phénacomys, Western Heather Vole, Heather Vole
  Phenacomys ungava Merriam, 1889 -- valid -- Ungava vole, Eastern Heather Vole
  Philander Brisson, 1762 -- valid -- black four-eyed opossums, gray four-eyed opossums
  Philander andersoni (Osgood, 1913) -- valid -- Black Four-eyed Opossum, Anderson's Four-eyed Opossum
  Philander opossum (Linnaeus, 1758) -- valid -- Tlacuache-cuatrojos gris, Gray Four-eyed Opossum, cuíca
  Philetor Thomas, 1902 -- valid
  Philetor brachypterus (Temminck, 1840) -- valid -- Rohu's Bat, Narrow-winged Brown Bat, Short-winged Pipistrelle, Narrow-winged Pipistrelle
  Phloeomys Waterhouse, 1839 -- valid -- Giant Cloud Rats
  Phloeomys cumingi (Waterhouse, 1839) -- valid -- Southern Luzon Phloeomys
  Phloeomys pallidus Nehring, 1890 -- valid -- Northern Luzon Phloeomys
  Phoca Linnaeus, 1758 -- valid -- hair seals, harbor seals
  Phoca caspica Gmelin, 1788 -- invalid -- Caspian seal
  Phoca fasciata Zimmermann, 1783 -- invalid -- ribbon seal
  Phoca groenlandica Erxleben, 1777 -- invalid -- harp seal, phoque du Groenland
  Phoca hispida Schreber, 1775 -- invalid -- ringed seal, phoque annelé
  Phoca hispida hispida Schreber, 1775 -- invalid
  Phoca hispida saimensis Nordquist, 1899 -- invalid -- Saimaa seal
  Phoca jubata Schreber, 1776 -- invalid
  Phoca largha Pallas, 1811 -- valid -- Spotted Seal, largha seal
  Phoca sibirica Gmelin, 1788 -- invalid -- Baikal seal
  Phoca tropicalis Gray, 1850 -- invalid
  Phoca vitulina Linnaeus, 1758 -- valid -- Harbor Seal, phoque commun, Foca común, common seal
  Phoca vitulina concolor De Kay, 1842 -- invalid -- Atlantic harbor seal
  Phoca vitulina largha Pallas, 1811 -- invalid
  Phoca vitulina mellonae Doutt, 1942 -- valid -- Ungava harbor seal
  Phoca vitulina richardii (Gray, 1864) -- valid -- Pacific harbor seal
  Phoca vitulina richardsi (Gray, 1864) -- invalid
  Phoca vitulina stejnegeri J. A. Allen, 1902 -- invalid
  Phoca vitulina vitulina Linnaeus, 1758 -- valid -- Atlantic harbor seal
  Phocarctos Peters, 1866 -- valid
  Phocarctos hookeri (Gray, 1844) -- valid -- New Zealand Sealion, Auckland sea lion, Hooker's sea lion, New Zealand sea lion
  Phocidae Gray, 1821 -- valid -- earless seals, true seals
  Phocoena G. Cuvier, 1816 -- valid -- common porpoises, harbor porpoises
  Phocoena dioptrica Lahille, 1912 -- valid -- Spectacled Porpoise
  Phocoena phocoena (Linnaeus, 1758) -- valid -- Harbor Porpoise, common porpoise, marsouin commun
  Phocoena sinus Norris and McFarland, 1958 -- valid -- cochito, Gulf of California harbor porpoise, Vaquita, Marsopa vaquita
  Phocoena spinipinnis Burmeister, 1865 -- valid -- black porpoise, Burmeister's Porpoise
  Phocoenidae Gray, 1825 -- valid -- porpoises
  Phocoenoides Andrews, 1911 -- valid -- Dall's porpoises
  Phocoenoides dalli (True, 1885) -- valid -- True's Porpoise, Marsopa de Dall, Dall's Porpoise
  Phocoenoides dalli dalli (True, 1885) -- valid -- Dall's Porpoise, Dalli-type Dall's porpoise
  Phocoenoides dalli truei Andrews, 1911 -- valid -- True's Porpoise, Truei-type Dall's porpoise
  Phodopus Miller, 1910 -- valid -- Small Desert Hamsters
  Phodopus campbelli (Thomas, 1905) -- valid -- Campbell's hamster, Campbell's Desert Hamster
  Phodopus roborovskii (Satunin, 1903) -- valid -- Roborovski's Desert Hamster, Desert Hamster
  Phodopus sungorus (Pallas, 1773) -- valid -- Dzhungarian hamster, Striped Hairy-footed Hamster, Striped Desert Hamster
  Pholidota Weber, 1904 -- valid -- Pangolins, scaly anteaters, pholidotes
  Phylloderma Peters, 1865 -- valid -- Pale-faced Bat
  Phylloderma stenops Peters, 1865 -- valid -- Pale-faced Bat
  Phyllonycterinae Miller, 1907 -- invalid
  Phyllonycteris Gundlach, 1861 -- valid
  Phyllonycteris aphylla (Miller, 1898) -- valid -- Jamaican Flower Bat
  Phyllonycteris poeyi Gundlach, 1861 -- valid -- Cuban Flower Bat
  Phyllops Peters, 1865 -- valid
  Phyllops falcatus (Gray, 1839) -- valid -- Cuban Fig-eating Bat
  Phyllostomidae Gray, 1825 -- valid -- New World leaf-nosed bats
  Phyllostominae Gray, 1825 -- valid
  Phyllostomus Lacépède, 1799 -- valid -- spear-nosed bats
  Phyllostomus discolor Wagner, 1843 -- valid -- Pale Spear-nosed Bat
  Phyllostomus elongatus (E. Geoffroy, 1810) -- valid -- Lesser Spear-nosed Bat
  Phyllostomus hastatus (Pallas, 1767) -- valid -- Greater Spear-nosed Bat
  Phyllostomus latifolius (Thomas, 1901) -- valid -- Guianan Spear-nosed Bat
  Phyllotis Waterhouse, 1837 -- valid -- Leaf-eared Mice
  Phyllotis amicus Thomas, 1900 -- valid -- Friendly Leaf-eared Mouse, Peruvian Pericote
  Phyllotis andium Thomas, 1912 -- valid -- Andean Leaf-eared Mouse, Andean Pericote
  Phyllotis bonaeriensis Crespo, 1964 -- invalid -- Buenos Aires leaf-eared mouse
  Phyllotis caprinus Pearson, 1958 -- valid -- Capricorn Leaf-eared Mouse, Capricorn Pericote
  Phyllotis darwini (Waterhouse, 1837) -- valid -- Darwin's Leaf-eared Mouse, Darwin's Pericote
  Phyllotis definitus Osgood, 1915 -- valid -- Definitive Leaf-eared Mouse, Ancash Pericote
  Phyllotis gerbillus Thomas, 1900 -- invalid -- Gerbil Leaf-eared Mouse
  Phyllotis haggardi Thomas, 1898 -- valid -- Haggard's leaf-eared mouse, Ecuadoran Pericote
  Phyllotis magister Thomas, 1912 -- valid -- Master Leaf-eared Mouse, Majestic Pericote
  Phyllotis osgoodi Mann, 1945 -- valid -- Osgood's Leaf-eared Mouse, Osgood's Pericote
  Phyllotis osilae J. A. Allen, 1901 -- valid -- Bunchgrass Leaf-eared Mouse, Bunchgrass Pericote
  Phyllotis wolffsohni Thomas, 1902 -- valid -- Wolffsohn's Leaf-eared Mouse, Wolffsohn's Pericote
  Phyllotis xanthopygus (Waterhouse, 1837) -- valid -- Yellow-rumped Leaf-eared Mouse, Yellow-rumped Pericote
  Physeter Linnaeus, 1758 -- valid -- sperm whales
  Physeter catodon Linnaeus, 1758 -- invalid -- Sperm Whale
  Physeter macrocephalus Linnaeus, 1758 -- valid -- Sperm Whale, cachalot
  Physeteridae Gray, 1821 -- valid -- sperm whales
  Pinnipedia -- invalid
  Pipistrellus Kaup, 1829 -- valid -- pipistrelles
  Pipistrellus aegyptius (J. Fischer, 1829) -- invalid -- Egyptian Pipistrelle
  Pipistrellus aero Heller, 1912 -- valid -- Mount Gargues pipistrelle, Mt. Gargues Pipistrelle, Kenya Pipistrelle, Aerial Pipistrelle Bat
  Pipistrellus affinis (Dobson, 1871) -- invalid -- Chocolate Pipistrelle
  Pipistrellus anchietai Seabra, 1900 -- invalid -- Anchieta's Pipistrelle
  Pipistrellus anthonyi Tate, 1942 -- invalid -- Anthony's Pipistrelle
  Pipistrellus arabicus Harrison, 1979 -- invalid -- Arabian Pipistrelle
  Pipistrellus ariel Thomas, 1904 -- invalid -- Desert Pipistrelle
  Pipistrellus babu Thomas, 1915 -- invalid -- Himalayan pipistrelle
  Pipistrellus bodenheimeri Harrison, 1960 -- invalid -- Bodenheimer's Pipistrelle
  Pipistrellus cadornae Thomas, 1916 -- invalid -- Cadorna's Pipistrelle
  Pipistrellus ceylonicus (Kelaart, 1852) -- valid -- Kelaart's Pipistrelle, Black Gilded Pipistrelle
  Pipistrellus circumdatus (Temminck, 1840) -- invalid -- Black Gilded Pipistrelle
  Pipistrellus coromandra (Gray, 1838) -- valid -- Indian Pipistrelle, Coromandel Pipistrelle, Little Indian Bat
  Pipistrellus crassulus Thomas, 1904 -- invalid -- Broad-headed Pipistrelle
  Pipistrellus cuprosus Hill and Francis, 1984 -- invalid -- Coppery Pipistrelle
  Pipistrellus dormeri (Dobson, 1875) -- invalid -- Dormer's Pipistrelle
  Pipistrellus eisentrauti Hill, 1968 -- invalid -- Eisentraut's pipistrelle
  Pipistrellus endoi Imaizumi, 1959 -- valid -- Endo's Pipistrelle
  Pipistrellus hesperus (H. Allen, 1864) -- invalid -- Pipistrelo del oeste americano, Western Pipistrelle
  Pipistrellus imbricatus (Horsfield, 1824) -- invalid -- Brown Pipistrelle
  Pipistrellus inexspectatus Aellen, 1959 -- valid -- Aellen's Pipistrelle, Central African Pipistrelle
  Pipistrellus javanicus (Gray, 1838) -- valid -- Javan Pipistrelle, Java Pipistrelle
  Pipistrellus joffrei (Thomas, 1915) -- invalid -- Joffre's pipistrelle
  Pipistrellus kitcheneri Thomas, 1915 -- invalid -- Red-brown Pipistrelle
  Pipistrellus kuhlii (Kuhl, 1817) -- valid -- Kuhl's Pipistrelle, Great Pipistrelle, White Stripe Bat
  Pipistrellus lophurus Thomas, 1915 -- invalid -- Burma Pipistrelle
  Pipistrellus macrotis (Temminck, 1840) -- invalid -- Big-eared Pipistrelle
  Pipistrellus maderensis (Dobson, 1878) -- valid -- Madeira Pipistrelle, Madeiran Pipistrelle
  Pipistrellus mimus Wroughton, 1899 -- invalid -- Indian Pygmy Pipistrelle
  Pipistrellus minahassae (A. Meyer, 1899) -- valid -- Minahassa Pipistrelle
  Pipistrellus mordax (Peters, 1866) -- invalid -- Pungent Pipistrelle
  Pipistrellus musciculus Thomas, 1913 -- invalid
  Pipistrellus nanulus Thomas, 1904 -- valid -- Tiny Pipistrelle, Dwarf Pipistrelle Bat
  Pipistrellus nanus (Peters, 1852) -- invalid -- Banana Pipistrelle
  Pipistrellus nathusii (Keyserling and Blasius, 1839) -- valid -- Nathusius's Pipistrelle
  Pipistrellus paterculus Thomas, 1915 -- valid -- Mount Popa Pipistrelle, Paternal Pipistrelle
  Pipistrellus peguensis Sinha, 1969 -- invalid -- Pegu pipistrelle
  Pipistrellus permixtus Aellen, 1957 -- valid -- Dar-es-Salaam Pipistrelle, Tanzania Pipistrelle
  Pipistrellus petersi (A. Meyer, 1899) -- invalid -- Peters's pipistrelle
  Pipistrellus pipistrellus (Schreber, 1774) -- valid -- Common Pipistrelle, Small House Bat
  Pipistrellus pulveratus (Peters, 1871) -- invalid -- Chinese Pipistrelle
  Pipistrellus rueppelli (J. Fischer, 1829) -- invalid -- Rüppel's pipistrelle
  Pipistrellus rusticus (Tomes, 1861) -- valid -- Rusty Pipistrelle, Rustic Pipistrelle, Rusty Bat
  Pipistrellus savii (Bonaparte, 1837) -- invalid -- Savi's Pipistrelle
  Pipistrellus societatis Hill, 1972 -- invalid -- Social Pipistrelle
  Pipistrellus stenopterus (Dobson, 1875) -- valid -- Narrow-winged Pipistrelle, Malayan Noctule
  Pipistrellus sturdeei Thomas, 1915 -- valid -- Sturdee's Pipistrelle, Bonin Pipistrelle
  Pipistrellus subflavus (F. Cuvier, 1832) -- invalid -- Pipistrelo del este americano, pipistrelle de l'est, Eastern Pipistrelle
  Pipistrellus tasmaniensis (Gould, 1858) -- invalid -- Eastern False Pipistrelle
  Pipistrellus tenuis (Temminck, 1840) -- valid -- Least Pipistrelle, Indian Pygmy Bat
  Pithecheir F. G. Cuvier, 1833 -- invalid
  Pithecheir melanurus F. G. Cuvier, 1833 -- invalid
  Pithecheir parvus Kloss, 1916 -- valid -- Malay Peninsula Pithecheir
  Pithecia Desmarest, 1804 -- valid -- saki monkeys, sakis
  Pithecia aequatorialis Hershkovitz, 1987 -- valid -- Equatorial Saki
  Pithecia albicans Gray, 1860 -- valid -- Buffy Saki, White-footed Saki
  Pithecia irrorata Gray, 1842 -- valid -- Gray Monk Saki, Rio Tapajos Saki, Gray's Bald-faced Saki
  Pithecia monachus (É. Geoffroy Saint-Hilaire, 1812) -- valid -- Geoffroy's Monk Saki, Monk Saki
  Pithecia pithecia (Linnaeus, 1766) -- valid -- Guianan Saki, White-faced Saki
  Pitheciinae Mivart, 1865 -- valid
  Pitymys McMurtrie, 1831 -- invalid
  Pitymys parvulus A. H. Howell, 1916 -- invalid
  Plagiodontia F. Cuvier, 1836 -- valid
  Plagiodontia aedium F. Cuvier, 1836 -- valid -- Hispaniolan Hutia
  Plagiodontia araeum Ray, 1964 -- valid -- Wide-toothed Hutia
  Plagiodontia ipnaeum Johnson, 1948 -- valid -- Samana Hutia
  Plagiodontinae Ellerman, 1940 -- invalid
  Planigale Troughton, 1928 -- valid -- Planigales, flat-skulled marsupial 'mice'
  Planigale gilesi Aitken, 1972 -- valid -- Paucident Planigale, Giles's Planigale
  Planigale ingrami (Thomas, 1906) -- valid -- Long-tailed Planigale
  Planigale maculata (Gould, 1851) -- valid -- Pygmy Planigale, Common Planigale
  Planigale novaeguineae Tate and Archbold, 1941 -- valid -- New Guinean Planigale, Papuan Planigale
  Planigale tenuirostris Troughton, 1928 -- valid -- Narrow-nosed Planigale, southern planigale
  Platacanthomyinae Alston, 1876 -- invalid
  Platacanthomys Blyth, 1859 -- valid
  Platacanthomys lasiurus Blyth, 1859 -- valid -- Malabar Spiny Dormouse, Spiny Tree Mouse
  Platalina Thomas, 1928 -- valid -- Long-snouted Bat
  Platalina genovensium Thomas, 1928 -- valid -- Long-snouted Bat
  Platanista Wagler, 1830 -- valid -- Ganges dolphins, Indus dolphins, susu
  Platanista gangetica (Roxburgh, 1801) -- invalid -- Ganges River Dolphin, Ganges river-dolphin, susu, South Asian river dolphin
  Platanista gangetica minor Owen, 1853 -- invalid -- Indus River dolphin, Bhulan
  Platanista minor Owen, 1853 -- valid -- Indus susu, Indus River Dolphin, Bhulan
  Platanistidae Gray, 1846 -- valid -- river dolphins
  Platypus Shaw, 1799 -- invalid
  Platyrrhinus Saussure, 1860 -- valid -- broad-nosed bats
  Platyrrhinus aurarius (Handley and Ferris, 1972) -- valid -- Eldorado Broad-nosed Bat
  Platyrrhinus brachycephalus (Rouk and Carter, 1972) -- valid -- Short-headed Broad-nosed Bat
  Platyrrhinus chocoensis Alberico and Velasco, 1991 -- invalid -- Choco Broad-nosed Bat
  Platyrrhinus dorsalis (Thomas, 1900) -- valid -- Thomas's Broad-nosed Bat
  Platyrrhinus helleri (Peters, 1866) -- valid -- Heller's Broad-nosed Bat
  Platyrrhinus infuscus (Peters, 1880) -- valid -- Buffy Broad-nosed Bat
  Platyrrhinus lineatus (E. Geoffroy, 1810) -- valid -- White-lined Broad-nosed Bat
  Platyrrhinus recifinus (Thomas, 1901) -- valid -- Recife Broad-nosed Bat
  Platyrrhinus umbratus (Lyon, 1902) -- valid -- Shadowy Broad-nosed Bat
  Platyrrhinus vittatus (Peters, 1860) -- valid -- Greater Broad-nosed Bat
  Plecotus E. Geoffroy, 1818 -- valid -- big-eared bats
  Plecotus auritus (Linnaeus, 1758) -- valid -- brown big-eared bat, Brown Long-eared Bat
  Plecotus austriacus (J. Fischer, 1829) -- valid -- gray big-eared bat, Gray Long-eared Bat
  Plecotus mexicanus (G. M. Allen, 1916) -- invalid -- Mexican big-eared bat, Murciélago-mula Mexicano
  Plecotus rafinesquii Lesson, 1827 -- invalid -- Rafinesque's big-eared bat
  Plecotus taivanus Yoshiyuki, 1991 -- valid -- Taiwan big-eared bat, Taiwan Long-eared Bat, Formosan Long-eared Bat
  Plecotus teneriffae Barrett-Hamilton, 1907 -- valid -- Canary big-eared bat, Canary Long-eared Bat
  Plecotus townsendii Cooper, 1837 -- invalid -- Townsend's big-eared bat
  Plecotus townsendii intermedius (H. W. Grinnell, 1914) -- invalid
  Plecotus townsendii mexicanus (G. M. Allen, 1916) -- invalid
  Plerotes K. Andersen, 1910 -- valid
  Plerotes anchietai (Seabra, 1900) -- invalid -- d'Anchieta's fruit bat
  Podogymnura Mearns, 1905 -- valid
  Podogymnura aureospinula Heaney and Morgan, 1982 -- valid -- Dinagat Gymnure
  Podogymnura truei Mearns, 1905 -- valid -- Mindanao Gymnure
  Podomys Osgood, 1909 -- valid -- Florida mice
  Podomys floridanus (Chapman, 1889) -- valid -- Florida mouse, Florida Deermouse
  Podoxymys Anthony, 1929 -- valid
  Podoxymys roraimae Anthony, 1929 -- valid -- Roraima mouse, Roraima Akodont
  Poecilogale Thomas, 1883 -- valid -- African Striped Weasel
  Poecilogale albinucha (Gray, 1864) -- valid -- African Striped Weasel
  Poelagus St. Leger, 1932 -- valid
  Poelagus marjorita (St. Leger, 1929) -- valid -- Bunyoro Rabbit, Uganda Grass Hare
  Pogonomelomys Rümmler, 1936 -- valid -- New Guinean Brush Mice
  Pogonomelomys bruijni (Peters and Doria, 1876) -- valid -- Bruijn's Pogonomelomys
  Pogonomelomys mayeri (Rothschild and Dollman, 1932) -- valid -- Shaw Mayer's Pogonomelomys
  Pogonomelomys sevia (Tate and Archbold, 1935) -- invalid
  Pogonomys Milne-Edwards, 1877 -- valid -- Prehensile-tailed Tree Mice
  Pogonomys championi Flannery, 1988 -- valid -- Champion's Pogonomys
  Pogonomys loriae Thomas, 1897 -- valid -- Loria's Pogonomys
  Pogonomys macrourus (Milne-Edwards, 1877) -- valid -- Chestnut Pogonomys
  Pogonomys sylvestris Thomas, 1920 -- valid -- Gray-bellied Pogonomys
  Poiana Gray, 1865 -- valid
  Poiana richardsonii (Thomson, 1842) -- valid -- African Linsang, Central African Oyan
  Pongo Lacépède, 1799 -- valid -- orangutans
  Pongo pygmaeus (Linnaeus, 1760) -- valid -- orangutan, Bornean Orangutan
  Pontoporia Gray, 1846 -- valid
  Pontoporia blainvillei (Gervais and d'Orbigny, 1844) -- valid -- La Plata dolphin, Franciscana, La Plata river dolphin, toninha
  Pontoporiidae Gray, 1870 -- valid
  Potamochoerus Gray, 1854 -- valid -- African bushpigs
  Potamochoerus larvatus (F. Cuvier, 1822) -- valid -- bushpig, Bush-pig
  Potamochoerus porcus (Linnaeus, 1758) -- valid -- Red River Hog, red river hog
  Potamogale Du Chaillu, 1860 -- valid
  Potamogale velox (Du Chaillu, 1860) -- valid -- Giant Otter Shrew, Giant Otter-shrew
  Potamogalinae Allman, 1865 -- invalid
  Potoroidae Gray, 1821 -- valid -- potoroos, bettongs
  Potorous Desmarest, 1804 -- valid -- potoroos
  Potorous longipes Seebeck and Johnston, 1980 -- valid -- Long-footed Potoroo
  Potorous platyops (Gould, 1844) -- valid -- Broad-faced Potoroo
  Potorous tridactylus (Kerr, 1792) -- valid -- Long-nosed Potoroo
  Potos É. Geoffroy Saint-Hilaire and F. G. Cuvier, 1795 -- valid
  Potos flavus (Schreber, 1774) -- valid -- Kinkajou
  Potosinae Trouessart, 1904 -- invalid
  Praomys Thomas, 1915 -- valid -- African Soft-furred Mice
  Praomys delectorum (Thomas, 1910) -- valid -- East African Praomys
  Praomys hartwigi Eisentraut, 1968 -- valid -- Hartwig's Praomys
  Praomys jacksoni (de Winton, 1897) -- valid -- Jackson's Praomys
  Praomys minor Hatt, 1934 -- valid -- Least Praomys
  Praomys misonnei Van der Straeten and Dieterlen, 1987 -- valid -- Misonne's Praomys
  Praomys morio (Trouessart, 1881) -- valid -- Cameroon Praomys
  Praomys mutoni Van der Straeten and Dudu, 1990 -- valid -- Riverine Praomys
  Praomys rostratus (Miller, 1900) -- valid -- West African Praomys
  Praomys tullbergi (Thomas, 1894) -- valid -- Tullberg's Praomys
  Presbytis Eschscholtz, 1821 -- valid -- surilis
  Presbytis comata (Desmarest, 1822) -- valid -- Grizzled Leaf Monkey, Javan Surili, Javan Langur
  Presbytis femoralis (Martin, 1838) -- valid -- Banded Leaf Monkey, Banded Langur, Banded Surili, Raffles' Banded Langur
  Presbytis frontata (Müller, 1838) -- valid -- White-fronted Leaf Monkey, White-fronted Langur
  Presbytis hosei (Thomas, 1889) -- valid -- Gray Leaf Monkey, Hose's Langur
  Presbytis melalophos (Raffles, 1821) -- valid -- Black-crested Sumatran Langur, Sumatran Surili
  Presbytis potenziani (Bonaparte, 1856) -- valid -- Mentawai Leaf Monkey, Mentawai Langur
  Presbytis rubicunda (Müller, 1838) -- valid -- Red Leaf Monkey, Maroon Langur, Maroon Leaf-Monkey
  Presbytis thomasi (Collett, 1893) -- valid -- North Sumatran Leaf Monkey, Thomas's Langur, Thomas' Langur
  Primates Linnaeus, 1758 -- valid -- homem, macaco, primata, sagui, primates, primates
  Priodontes F. Cuvier, 1825 -- valid -- giant armadillos
  Priodontes giganteus (G. Fischer, 1814) -- invalid
  Priodontes maximus (Kerr, 1792) -- valid -- Giant Armadillo
  Prionailurus Severtzov, 1858 -- valid
  Prionailurus bengalensis (Kerr, 1792) -- valid -- Leopard Cat, Chat-léopard du Bengale, gato bengali, gato de Bengala
  Prionailurus bengalensis bengalensis (Kerr, 1792) -- valid -- leopard cat
  Prionailurus bengalensis iriomotensis (Imaizumi, 1967) -- invalid -- Iriomote cat
  Prionailurus planiceps (Vigors and Horsfield, 1827) -- valid -- Flat-headed Cat, Chat à tête plate, Gato cabeciancho
  Prionailurus rubiginosus (I. Geoffroy Saint-Hilaire, 1831) -- valid -- Rusty-Spotted Cat, Chat rougâtre, chat rubigineux, gato rojizo
  Prionailurus viverrinus (Bennett, 1833) -- valid -- Fishing Cat, Chat pêcheur, chat viverrin, Gato pescador
  Prionodon Horsfield, 1822 -- valid
  Prionodon linsang (Hardwicke, 1821) -- valid -- Banded Linsang
  Prionodon pardicolor Hodgson, 1842 -- valid -- Spotted Linsang
  Prionomys Dollman, 1910 -- valid
  Prionomys batesi Dollman, 1910 -- valid -- Dollman's tree mouse, Dollman's African Tree Mouse
  Proboscidea Illiger, 1811 -- valid -- Elephants
  Procapra Hodgson, 1846 -- valid -- Central Asian gazelles
  Procapra gutturosa (Pallas, 1777) -- valid -- Mongolian Gazelle, Mongolian gazelle
  Procapra picticaudata Hodgson, 1846 -- valid -- Tibetan gazelle, Tibetan Gazelle
  Procapra przewalskii (Büchner, 1891) -- valid -- Przewalski's Gazelle, Przewalski's gazelle
  Procavia Storr, 1780 -- valid -- Rock Hyraxes
  Procavia capensis (Pallas, 1766) -- valid -- Rock Hyrax
  Procaviidae Thomas, 1892 -- valid
  Procolobus Rochebrune, 1877 -- valid -- Olive Colobus
  Procolobus badius (Kerr, 1792) -- invalid
  Procolobus pennantii (Waterhouse, 1838) -- invalid
  Procolobus preussi (Matschie, 1900) -- invalid
  Procolobus rufomitratus (Peters, 1879) -- invalid
  Procolobus verus (van Beneden, 1838) -- valid -- Olive Colobus
  Procyon Storr, 1780 -- valid -- raccoons
  Procyon cancrivorus (G.[Baron] Cuvier, 1798) -- valid -- Crab-eating Raccoon
  Procyon gloveralleni Nelson and Goldman, 1930 -- invalid -- Barbados raccoon
  Procyon insularis Merriam, 1898 -- invalid -- Tres Marias raccoon
  Procyon lotor (Linnaeus, 1758) -- valid -- Raccoon, Mapache común, common raccoon, raton laveur, Northern Raccoon
  Procyon maynardi Bangs, 1898 -- invalid -- Bahaman raccoon
  Procyon minor Miller, 1911 -- invalid -- Guadeloupe raccoon
  Procyon pygmaeus Merriam, 1901 -- valid -- Cozumel Raccoon
  Procyonidae Gray, 1825 -- valid -- procyonids
  Procyoninae Gray, 1825 -- invalid
  Proechimys J. A. Allen, 1899 -- valid
  Proechimys albispinus (I. Geoffroy Saint-Hilaire, 1838) -- invalid
  Proechimys amphichoricus Moojen, 1948 -- invalid
  Proechimys bolivianus Thomas, 1901 -- invalid
  Proechimys brevicauda (Günther, 1877) -- valid -- Short-tailed Spiny-rat
  Proechimys canicollis (J. A. Allen, 1899) -- valid -- Colombian Spiny-rat
  Proechimys cayennensis (Desmarest, 1817) -- invalid
  Proechimys chrysaeolus (Thomas, 1898) -- valid -- Boyacá Spiny-rat
  Proechimys cuvieri Petter, 1978 -- valid -- Cuvier's Spiny-rat
  Proechimys decumanus (Thomas, 1899) -- valid -- Pacific Spiny-rat
  Proechimys dimidiatus (Günther, 1877) -- invalid
  Proechimys goeldii Thomas, 1905 -- valid -- Goeldi's Spiny-rat
  Proechimys gorgonae Bangs, 1905 -- invalid
  Proechimys guairae Thomas, 1901 -- valid -- Guaira Spiny-rat
  Proechimys gularis Thomas, 1911 -- invalid
  Proechimys hendeei Thomas, 1926 -- invalid
  Proechimys hoplomyoides Tate, 1939 -- valid -- Guyanan Spiny-rat, Guianan Spiny-rat
  Proechimys iheringi Thomas, 1911 -- invalid
  Proechimys longicaudatus (Rengger, 1830) -- valid -- Long-tailed Spiny-rat
  Proechimys magdalenae Hershkovitz, 1948 -- invalid -- Magdalena Spiny Rat
  Proechimys mincae (J. A. Allen, 1899) -- valid -- Minca Spiny-rat
  Proechimys myosuros (Lichtenstein, 1820) -- invalid
  Proechimys oconnelli J. A. Allen, 1913 -- valid -- O'Connell's Spiny-rat
  Proechimys oris Thomas, 1904 -- invalid
  Proechimys poliopus Osgood, 1914 -- invalid -- Gray-footed Spiny-rat
  Proechimys quadruplicatus Hershkovitz, 1948 -- valid -- Napo Spiny-rat
  Proechimys semispinosus (Tomes, 1860) -- valid -- Tome's Spiny-rat, Tomes's Spiny-rat
  Proechimys setosus (Desmarest, 1817) -- invalid
  Proechimys simonsi Thomas, 1900 -- valid -- Simon's Spiny-rat
  Proechimys steerei Goldman, 1911 -- valid -- Steere's Spiny-rat
  Proechimys trinitatis (J. A. Allen and Chapman, 1893) -- valid -- Trinidad Spiny-rat
  Proechimys urichi (J. A. Allen, 1899) -- invalid -- Sucre Spiny-rat
  Proechimys warreni Thomas, 1905 -- invalid
  Proedromys Thomas, 1911 -- valid
  Proedromys bedfordi Thomas, 1911 -- valid -- Duke of Bedford's Vole
  Profelis Severtzov, 1858 -- invalid
  Profelis aurata (Temminck, 1827) -- invalid -- African Golden Cat
  Prohapalemur Lamberton, 1936 -- invalid
  Prolagus Pomel, 1853 -- valid
  Prolagus sardus (Wagner, 1832) -- valid -- Sardinian Pika
  Prolemur Gray, 1870 -- valid -- Greater Bamboo Lemur
  Prometheomys Satunin, 1901 -- valid
  Prometheomys schaposchnikowi Satunin, 1901 -- valid -- Long-clawed Mole Vole
  Promops Gervais, 1856 -- valid
  Promops centralis Thomas, 1915 -- valid -- Big Crested Mastiff Bat
  Promops nasutus (Spix, 1823) -- valid -- Brown Mastiff Bat
  Pronolagus Lyon, 1904 -- valid -- Red Rockhares
  Pronolagus crassicaudatus (I. Geoffroy, 1832) -- valid -- Natal Red Rock Hare, Natal Red Rockhare, Greater Red Rockhare
  Pronolagus randensis Jameson, 1907 -- valid -- Jameson's Red Rockhare, Jameson's Red Rock Hare
  Pronolagus rupestris (A. Smith, 1834) -- valid -- Smith's Red Rock Hare, Smith's Red Rockhare
  Propithecus Bennett, 1832 -- valid -- sifakas
  Propithecus diadema Bennett, 1832 -- valid -- Diademed Sifaka
  Propithecus tattersalli Simons, 1988 -- valid -- Tattersall's Sifaka, Golden-crowned Sifaka
  Propithecus verreauxi Grandidier, 1867 -- valid -- Verreaux's Sifaka
  Prosciurillus Ellerman, 1947 -- valid -- Sulawesi Dwarf Squirrels
  Prosciurillus abstrusus Moore, 1958 -- valid -- Secretive Dwarf Squirrel
  Prosciurillus leucomus (Müller and Schlegel, 1844) -- valid -- Whitish Dwarf Squirrel
  Prosciurillus murinus (Müller and Schlegel, 1844) -- valid -- Celebes Dwarf Squirrel
  Prosciurillus weberi (Jentink, 1890) -- valid -- Weber's Dwarf Squirrel
  Proteles I. Geoffroy Saint-Hilaire, 1824 -- valid
  Proteles cristatus (Sparrman, 1783) -- invalid -- aardwolf
  Protelinae I. Geoffroy Saint-Hilaire, 1851 -- valid -- Aardwolf
  Protoxerus Forsyth Major, 1893 -- valid -- African Giant Squirrels
  Protoxerus aubinnii (Gray, 1873) -- valid -- Slender-tailed Squirrel
  Protoxerus stangeri (Waterhouse, 1842) -- valid -- Forest Giant Squirrel
  Psammomys Cretzschmar, 1828 -- valid -- Sand Rats
  Psammomys obesus Cretzschmar, 1828 -- valid -- Fat Sand Rat
  Psammomys pinetorum Le Conte, 1830 -- invalid
  Psammomys vexillaris Thomas, 1925 -- valid -- Thin Sand Rat, Lesser Sand Rat
  Pseudalopex Burmeister, 1856 -- invalid
  Pseudalopex culpaeus (Molina, 1782) -- invalid -- Culpeo
  Pseudalopex griseus (Gray, 1837) -- invalid -- Argentine gray fox, South American Gray Fox
  Pseudalopex gymnocercus (G. Fischer von Waldheim, 1814) -- invalid -- Pampas Fox
  Pseudalopex sechurae (Thomas, 1900) -- invalid -- Sechuran Fox
  Pseudalopex vetulus (Lund, 1842) -- invalid -- Hoary Fox
  Pseudantechinus Tate, 1947 -- valid
  Pseudantechinus macdonnellensis (Spencer, 1896) -- valid -- Fat-tailed False Antechinus, Fat-tailed Pseudantechinus
  Pseudantechinus ningbing Kitchener, 1988 -- valid -- Ningbing False Antechinus, Ningbing Pseudanthechinus
  Pseudantechinus woolleyae Kitchener and Caputi, 1988 -- valid -- Woolley's False Antechinus, Woolley's Pseudantechinus
  Pseudocheiridae Winge, 1893 -- valid -- ring-tailed possums, greater gliders
  Pseudocheirus Ogilby, 1837 -- valid
  Pseudocheirus canescens (Waterhouse, 1846) -- invalid
  Pseudocheirus caroli Thomas, 1921 -- invalid
  Pseudocheirus forbesi Thomas, 1887 -- invalid
  Pseudocheirus herbertensis (Collett, 1884) -- invalid
  Pseudocheirus mayeri Rothschild and Dollman, 1932 -- invalid
  Pseudocheirus peregrinus (Boddaert, 1785) -- valid -- Common Ringtail, Eastern Ring-tailed Possum
  Pseudocheirus schlegeli Jentink, 1884 -- invalid
  Pseudochirops Matschie, 1915 -- valid
  Pseudochirops albertisii (Peters, 1874) -- valid -- D'Albertis' Ringtail, D'Albertis's Ring-tailed Possum
  Pseudochirops archeri (Collett, 1884) -- valid -- Green Ringtail, Green Ring-tailed Possum
  Pseudochirops corinnae (Thomas, 1897) -- valid -- Plush-coated Ringtail, Plush-coated Ring-tailed Possum
  Pseudochirops cupreus (Thomas, 1897) -- valid -- Coppery Ringtail, Coppery Ring-tailed Possum
  Pseudohydromys Rümmler, 1934 -- valid -- New Guinean Shrew Mice
  Pseudohydromys murinus Rümmler, 1934 -- valid -- Eastern New Guinea Shrew Mouse
  Pseudohydromys occidentalis Tate, 1951 -- valid -- Western New Guinea Shrew Mouse
  Pseudois Hodgson, 1846 -- valid
  Pseudois nayaur (Hodgson, 1833) -- valid -- bharal, Bharal
  Pseudois schaeferi Haltenorth, 1963 -- valid -- Dwarf Bharal, dwarf bharal
  Pseudomys Gray, 1832 -- valid -- Australian Mice
  Pseudomys albocinereus (Gould, 1845) -- valid -- Ash-gray Pseudomys
  Pseudomys apodemoides Finlayson, 1932 -- valid -- Silky Pseudomys
  Pseudomys australis Gray, 1832 -- valid -- Plains Pseudomys
  Pseudomys bolami Troughton, 1932 -- valid -- Bolam's Pseudomys
  Pseudomys chapmani Kitchener, 1980 -- valid -- Western Pebble-mound Mouse
  Pseudomys delicatulus (Gould, 1842) -- valid -- Delicate Pseudomys
  Pseudomys desertor Troughton, 1932 -- valid -- Desert Pseudomys
  Pseudomys fieldi (Waite, 1896) -- valid -- Shark Bay Pseudomys
  Pseudomys fumeus Brazenor, 1934 -- valid -- Smoky Pseudomys
  Pseudomys fuscus (Thomas, 1882) -- invalid
  Pseudomys glaucus Thomas, 1910 -- valid -- Blue-gray Pseudomys
  Pseudomys gouldii (Waterhouse, 1839) -- valid -- Gould's Pseudomys
  Pseudomys gracilicaudatus (Gould, 1845) -- valid -- Eastern Chestnut Pseudomys
  Pseudomys hermannsburgensis (Waite, 1896) -- valid -- Sandy Inland Pseudomys
  Pseudomys higginsi (Trouessart, 1897) -- valid -- Long-tailed Pseudomys
  Pseudomys johnsoni Kitchener, 1985 -- valid -- Central Pebble-mound Pseudomys
  Pseudomys laborifex Kitchener and Humphreys, 1986 -- valid -- Kimberley Pseudomys
  Pseudomys nanus (Gould, 1858) -- valid -- Western Chestnut Pseudomys
  Pseudomys novaehollandiae (Waterhouse, 1843) -- valid -- New Holland Pseudomys
  Pseudomys occidentalis Tate, 1951 -- valid -- Western Pseudomys
  Pseudomys oralis Thomas, 1921 -- valid -- Hastings River Pseudomys
  Pseudomys patrius (Thomas and Dollman, 1909) -- valid -- Eastern Pebble-mound Pseudomys
  Pseudomys pilligaensis Fox and Briscoe, 1980 -- valid -- Pilliga Pseudomys
  Pseudomys praeconis Thomas, 1910 -- invalid
  Pseudomys shortridgei (Thomas, 1907) -- valid -- Heath Pseudomys
  Pseudorca Reinhardt, 1862 -- valid -- false killer whales
  Pseudorca crassidens (Owen, 1846) -- valid -- False Killer Whale, Orca-falsa
  Pseudoryzomys Hershkovitz, 1959 -- valid
  Pseudoryzomys simplex (Winge, 1887) -- valid -- Brazilian false rice rat, False Oryzomys
  Ptenochirus Peters, 1861 -- valid
  Ptenochirus jagori (Peters, 1861) -- invalid -- Greater Musky Fruit Bat
  Ptenochirus minor Yoshiyuki, 1979 -- valid -- Lesser Musky Fruit Bat
  Pteralopex Thomas, 1888 -- valid
  Pteralopex acrodonta Hill and Beckon, 1978 -- invalid -- Fijian monkey-faced bat, Fijian Monkey-faced Fruit Bat
  Pteralopex anceps K. Andersen, 1909 -- valid -- Bougainville monkey-faced bat, Bougainville Monkey-faced Fruit Bat
  Pteralopex atrata Thomas, 1888 -- valid -- Guadalcanal monkey-faced bat, Guadalcanal Monkey-faced Fruit Bat
  Pteralopex pulchra Flannery, 1991 -- valid -- montane monkey-faced bat, Montane Monkey-faced Fruit Bat
  Pteromyinae Brandt, 1855 -- invalid
  Pteromys G. Cuvier, 1800 -- valid -- Eurasian Flying Squirrels
  Pteromys momonga Temminck, 1844 -- valid -- Japanese Flying Squirrel
  Pteromys volans (Linnaeus, 1758) -- valid -- Siberian Flying Squirrel
  Pteromyscus Thomas, 1908 -- valid
  Pteromyscus pulverulentus (Günther, 1873) -- valid -- Smoky Flying Squirrel
  Pteronotus Gray, 1838 -- valid -- moustached bats, naked-backed bats
  Pteronotus davyi Gray, 1838 -- valid -- Davy's Naked-backed Bat
  Pteronotus gymnonotus (Natterer, 1843) -- valid -- Big Naked-backed Bat
  Pteronotus macleayii (Gray, 1839) -- valid -- MacLeay's Mustached Bat
  Pteronotus parnellii (Gray, 1843) -- valid -- Parnell's Mustached Bat, Murciélago-bigotudo de Parnell, Common Mustached Bat, Parnell's Common Mustached Bat
  Pteronotus personatus (Wagner, 1843) -- valid -- Wagner's Mustached Bat, Wagner's Lesser Mustached Bat
  Pteronotus quadridens (Gundlach, 1840) -- valid -- Sooty Mustached Bat
  Pteronura Gray, 1837 -- valid -- giant otters
  Pteronura brasiliensis (Gmelin, 1788) -- invalid -- Giant Otter
  Pteropodidae Gray, 1821 -- valid -- flying foxes, Old World fruit bats, megabats, non-echolocating bats
  Pteropodinae Gray, 1821 -- valid -- Old World fruit bats
  Pteropus Brisson, 1762 -- valid -- flying foxes
  Pteropus admiralitatum Thomas, 1894 -- valid -- Admiralty Flying Fox
  Pteropus aldabrensis True, 1893 -- valid -- Aldabra Flying Fox
  Pteropus alecto Temminck, 1837 -- valid -- Black Flying Fox
  Pteropus anetianus (Gray, 1870) -- valid -- Vanauatu flying fox, Vanuatu Flying Fox
  Pteropus argentatus Gray, 1844 -- invalid -- Ambon Flying Fox
  Pteropus brunneus Dobson, 1878 -- valid -- Dusky Flying Fox
  Pteropus caniceps Gray, 1870 -- valid -- North Moluccan Flying Fox
  Pteropus chrysoproctus Temminck, 1837 -- valid -- Moluccan Flying Fox, South Moluccan Flying Fox
  Pteropus conspicillatus Gould, 1850 -- valid -- Spectacled Flying Fox
  Pteropus dasymallus Temminck, 1825 -- valid -- Ryukyu Flying Fox
  Pteropus faunulus Miller, 1902 -- valid -- Nicobar Flying Fox
  Pteropus fundatus Felten and Kock, 1972 -- valid -- Banks Flying Fox
  Pteropus giganteus (Brünnich, 1782) -- invalid -- Indian Flying Fox
  Pteropus gilliardi Van Deusen, 1969 -- invalid -- Gilliard's Flying Fox
  Pteropus griseus (E. Geoffroy, 1810) -- valid -- Gray Flying Fox, Wallacean Gray Flying Fox
  Pteropus howensis Troughton, 1931 -- valid -- Ontong Java Flying Fox
  Pteropus hypomelanus Temminck, 1853 -- valid -- Variable Flying Fox, Island Flying Fox
  Pteropus insularis Hombron and Jacquinot in Jacquinot and Pucheran, 1853 -- invalid -- Truk Flying Fox, Ruck Flying Fox
  Pteropus leucopterus Temminck, 1853 -- invalid -- White-winged Flying Fox
  Pteropus livingstonii Gray, 1866 -- valid -- Comoro Black Flying Fox, Comoro Flying Fox, Livingstone's Flying Fox
  Pteropus lombocensis Dobson, 1878 -- valid -- Lombok Flying Fox
  Pteropus lylei K. Andersen, 1908 -- valid -- Lyle's Flying Fox
  Pteropus macrotis Peters, 1867 -- valid -- Big-eared Flying Fox
  Pteropus mahaganus Sanborn, 1931 -- valid -- Sanborn's Flying Fox
  Pteropus mariannus Desmarest, 1822 -- valid -- Mariana Flying Fox, Mariana Fruit Bat, Marianas Flying Fox
  Pteropus mearnsi Hollister, 1913 -- invalid -- Mearns's flying fox
  Pteropus melanopogon Peters, 1867 -- valid -- Black-bearded Flying Fox
  Pteropus melanotus Blyth, 1863 -- valid -- Black-eared Flying Fox
  Pteropus molossinus Temminck, 1853 -- valid -- Ponape Flying Fox, Caroline Flying Fox, Pohnpei Flying Fox
  Pteropus neohibernicus Peters, 1876 -- valid -- Great Flying Fox
  Pteropus niger (Kerr, 1792) -- valid -- Greater Mascarene Flying Fox
  Pteropus nitendiensis Sanborn, 1930 -- valid -- Temotu Flying Fox
  Pteropus ocularis Peters, 1867 -- valid -- Ceram Flying Fox, Seram Flying Fox
  Pteropus ornatus Gray, 1870 -- valid -- Ornate Flying Fox
  Pteropus personatus Temminck, 1825 -- valid -- Masked Flying Fox, Moluccan Masked Flying Fox
  Pteropus phaeocephalus Thomas, 1882 -- invalid -- Mortlock Flying Fox, Mortlock Fruit Bat
  Pteropus pilosus K. Andersen, 1908 -- valid -- large Palau flying fox, Palau flying fox, Large Pelew Flying Fox
  Pteropus pohlei Stein, 1933 -- valid -- Geelvink Bay Flying Fox
  Pteropus poliocephalus Temminck, 1825 -- valid -- Gray-headed Flying Fox
  Pteropus pselaphon Lay, 1829 -- valid -- Bonin Flying Fox
  Pteropus pumilus Miller, 1910 -- valid -- Little Golden-mantled Flying Fox
  Pteropus rayneri Gray, 1870 -- valid -- Solomons Flying Fox
  Pteropus rodricensis Dobson, 1878 -- valid -- Rodriguez Flying Fox, Rodrigues Fruit Bat, Rodrigues Island Flying Fox, Rodrigues Flying Fox
  Pteropus rufus E. Geoffroy, 1803 -- valid -- Madagascan Flying Fox, Malagasy Flying Fox
  Pteropus samoensis Peale, 1848 -- valid -- Samoa Flying Fox, Samoan Flying Fox, Common Samoan Flying Fox
  Pteropus sanctacrucis Troughton, 1930 -- invalid -- Santa Cruz flying fox
  Pteropus scapulatus Peters, 1862 -- valid -- Little Red Flying Fox
  Pteropus seychellensis A. Milne-Edwards, 1878 -- valid -- Seychelles Flying Fox
  Pteropus speciosus K. Andersen, 1908 -- valid -- Philippine Gray Flying Fox
  Pteropus subniger (Kerr, 1792) -- valid -- Dark Flying Fox
  Pteropus temmincki Peters, 1867 -- invalid -- Temminck's flying fox
  Pteropus tokudae Tate, 1934 -- valid -- Tokuda's Flying Fox, Guam Flying Fox, Little Mariana Fruit Bat
  Pteropus tonganus Quoy and Gaimard, 1830 -- valid -- Insular Flying Fox, Pacific Flying Fox
  Pteropus tuberculatus Peters, 1869 -- valid -- Vanikoro Flying Fox
  Pteropus vampyrus (Linnaeus, 1758) -- valid -- Large Flying Fox
  Pteropus vetulus Jouan, 1863 -- invalid -- New Caledonia Flying Fox, New Caledonian Flying Fox
  Pteropus voeltzkowi Matschie, 1909 -- valid -- Pemba Flying Fox
  Pteropus woodfordi Thomas, 1888 -- valid -- Dwarf Flying Fox
  Ptilocercinae Lyon, 1913 -- invalid
  Ptilocercus Gray, 1848 -- valid
  Ptilocercus lowii Gray, 1848 -- valid -- Pen-tailed Tree Shrew, Pen-tailed Treeshrew
  Pudu Gray, 1852 -- valid -- pudus
  Pudu mephistophiles (de Winton, 1896) -- valid -- northern pudu, Northern Pudu
  Pudu puda (Molina, 1782) -- valid -- Southern Pudu, pudu, southern pudu
  Puertoricomys Woods, 1989 -- valid
  Puertoricomys corozalus (Williams and Koopman, 1951) -- valid
  Puma Jardine, 1834 -- valid -- pumas
  Puma concolor (Linnaeus, 1771) -- valid -- Cougar, Puma, Puma, Mountain Lion, Catamount, léon americano, léon bayo, léon colorado, onza bermeja
  Puma concolor azteca (Merriam, 1901) -- invalid
  Puma concolor browni (Merriam, 1903) -- invalid
  Puma concolor californica (May, 1896) -- invalid
  Puma concolor concolor (Linnaeus, 1771) -- valid -- mountain lion, puma
  Puma concolor coryi (Bangs, 1899) -- invalid -- Florida Panther
  Puma concolor costaricensis (Merriam, 1901) -- invalid -- Costa Rican puma
  Puma concolor cougar (Kerr, 1792) -- invalid
  Puma concolor couguar (Kerr, 1792) -- valid -- eastern cougar, eastern puma
  Puma concolor hippolestes (Merriam, 1897) -- invalid
  Puma concolor improcera (Phillips, 1912) -- invalid
  Puma concolor kaibabensis (Nelson and Goldman, 1931) -- invalid
  Puma concolor mayensis (Nelson and Goldman, 1929) -- invalid
  Puma concolor missoulensis (Goldman, 1943) -- invalid
  Puma concolor oregonensis (Rafinesque, 1832) -- invalid
  Puma concolor schorgeri (Jackson, 1955) -- invalid
  Puma concolor stanleyana (Goldman, 1938) -- invalid
  Puma concolor vancouverensis (Nelson and Goldman, 1932) -- invalid
  Punomys Osgood, 1943 -- valid
  Punomys lemminus Osgood, 1943 -- valid -- Puna Mouse, Western Puna Mouse
  Putorius nigripes Audubon and Bachman, 1851 -- invalid
  Pygathrix É. Geoffroy Saint-Hilaire, 1812 -- valid -- doucs
  Pygathrix avunculus (Dollman, 1912) -- invalid
  Pygathrix bieti (A. Milne-Edwards, 1897) -- invalid
  Pygathrix brelichi (Thomas, 1903) -- invalid
  Pygathrix nemaeus (Linnaeus, 1771) -- valid -- Red-shanked Douc, Red-shanked Douc Langur
  Pygathrix roxellana (A. Milne-Edwards, 1870) -- invalid
  Pygeretmus Gloger, 1841 -- valid -- Fat-tailed Jerboas
  Pygeretmus platyurus (Lichtenstein, 1823) -- valid -- Lesser Fat-tailed Jerboa
  Pygeretmus pumilio (Kerr, 1792) -- valid -- Dwarf Fat-tailed Jerboa, Little Earth Hare
  Pygeretmus shitkovi (Kuznetsov, 1930) -- valid -- Greater Fat-tailed Jerboa
  Pygoderma Peters, 1863 -- valid
  Pygoderma bilabiatum (Wagner, 1843) -- valid -- Ipanema Bat, Ipanema Broad-nosed Bat
  Quemisia Miller, 1929 -- valid
  Quemisia gravis Miller, 1929 -- valid -- Twisted-toothed Giant Hutia
  Rangifer C. H. Smith, 1827 -- valid -- caribou, reindeer
  Rangifer tarandus (Linnaeus, 1758) -- valid -- reindeer, caribou, caribou, Reindeer
  Rangifer tarandus caribou (Gmelin, 1788) -- valid -- woodland caribou
  Raphicerus C. H. Smith, 1827 -- valid -- grysboks, steenboks
  Raphicerus campestris (Thunberg, 1811) -- valid -- steenbok, Steenbok
  Raphicerus melanotis (Thunberg, 1811) -- valid -- Cape Grysbok, Cape grysbok
  Raphicerus sharpei Thomas, 1897 -- valid -- Sharpe's grysbok, Sharpe's Grysbok
  Rattus Fischer, 1803 -- valid -- Old World Rats
  Rattus adustus Sody, 1940 -- valid -- Burnished Enggano Rat
  Rattus annandalei (Bonhote, 1903) -- valid -- Annandale's Sundaic Rat
  Rattus argentiventer (Robinson and Kloss, 1916) -- valid -- Ricefield Rat
  Rattus baluensis (Thomas, 1894) -- valid -- Kinabalu Rat
  Rattus bontanus Thomas, 1921 -- valid -- Southwestern Xanthurus Rat
  Rattus burrus (Miller, 1902) -- valid -- Nicobar Archipelago Rat
  Rattus colletti (Thomas, 1904) -- valid -- Australian Dusky Rat
  Rattus elaphinus Sody, 1941 -- valid -- Sula Archipelago Rat
  Rattus enganus (Miller, 1906) -- valid -- Enggano Island Rat
  Rattus everetti (Günther, 1879) -- valid -- Philippine Forest Rat
  Rattus exulans (Peale, 1848) -- valid -- Polynesian rat, Little Rat, Pacific Rat
  Rattus feliceus Thomas, 1920 -- valid -- Spiny Seram Island Rat
  Rattus foramineus Sody, 1941 -- invalid
  Rattus fuscipes (Waterhouse, 1839) -- valid -- Australian Bush Rat
  Rattus giluwensis Hill, 1960 -- valid -- Mount Giluwe Rat
  Rattus hainaldi Kitchener, How and Maharadatunkamsi, 1991 -- valid -- Hainald's Flores Island Rat
  Rattus hoffmanni (Matschie, 1901) -- valid -- Hoffmann's Sulawesi Rat
  Rattus hoogerwerfi Chasen, 1939 -- valid -- Hoogerwerf's Sumatran Rat
  Rattus jobiensis Rümmler, 1935 -- valid -- Yapen Island Rat
  Rattus koopmani Musser and Holden, 1991 -- valid -- Koopman's Peleng Island Rat
  Rattus korinchi (Robinson and Kloss, 1916) -- valid -- Sumatran Mountain Rat
  Rattus leucopus (Gray, 1867) -- valid -- Cape York Rat
  Rattus losea (Swinhoe, 1871) -- valid -- Losea Rat
  Rattus lugens (Miller, 1903) -- valid -- Mentawai Archipelago Rat
  Rattus lutreolus (J. E. Gray, 1841) -- valid -- Australian Swamp Rat
  Rattus macleari (Thomas, 1887) -- valid -- Maclear's Christmas Island Rat
  Rattus marmosurus Thomas, 1921 -- valid -- Marmoset Xanthurus Rat
  Rattus mindorensis (Thomas, 1898) -- valid -- Mindoro Mountain Rat
  Rattus mollicomulus Tate and Archbold, 1935 -- valid -- Lampobatang Sulawesi Rat
  Rattus montanus Phillips, 1932 -- valid -- Sri Lankan Mountain Rat
  Rattus mordax (Thomas, 1904) -- valid -- Eastern New Guinea Rat
  Rattus morotaiensis Kellogg, 1945 -- valid -- Halmahara Rat
  Rattus nativitatis (Thomas, 1889) -- valid -- Christmas Island Rat
  Rattus nitidus (Hodgson, 1845) -- valid -- Himalayan Rat, White-footed Indochinese Rat, Himalayan Field Rat
  Rattus norvegicus (Berkenhout, 1769) -- valid -- rat surmulot, Brown Rat, Norway Rat
  Rattus novaeguineae Taylor and Calaby, 1982 -- valid -- Papua New Guinea Rat
  Rattus osgoodi Musser and Newcomb, 1985 -- valid -- Osgood's Vietnamese Rat
  Rattus palmarum (Zelebor, 1869) -- valid -- Car Nicobar Rat
  Rattus pelurus Sody, 1941 -- valid -- Peleng Island Xanthurus Rat
  Rattus praetor (Thomas, 1888) -- valid -- Large New Guinea Spiny Rat
  Rattus ranjiniae Agrawal and Ghosal, 1969 -- valid -- Ranjini's Rat
  Rattus rattus (Linnaeus, 1758) -- valid -- rat noir, House Rat, Black Rat, Roof Rat
  Rattus sanila Flannery and White, 1991 -- valid -- New Ireland Forest Rat
  Rattus sikkimensis Hinton, 1919 -- invalid
  Rattus simalurensis (Miller, 1903) -- valid -- Simalur Archipelago Rat
  Rattus sordidus (Gould, 1858) -- valid -- Canefield Rat
  Rattus steini Rümmler, 1935 -- valid -- Stein's New Guinea Rat
  Rattus stoicus (Miller, 1902) -- valid -- Andaman Archipelago Rat
  Rattus tanezumi (Temminck, 1845) -- valid -- Oriental House Rat
  Rattus tawitawiensis Musser and Heaney, 1985 -- valid -- Tawitawi Forest Rat
  Rattus timorensis Kitchener, Aplin and Boeadi, 1991 -- valid -- Timor Forest Rat
  Rattus tiomanicus (Miller, 1900) -- valid -- Malaysian Field Rat
  Rattus tunneyi (Thomas, 1904) -- valid -- Australian Pale Field Rat
  Rattus turkestanicus (Satunin, 1903) -- invalid
  Rattus villosissimus (Waite, 1898) -- valid -- Australian Long-haired Rat
  Rattus xanthurus (Gray, 1867) -- valid -- Northeastern Xanthurus Rat
  Ratufa Gray, 1867 -- valid -- Oriental Giant Squirrels
  Ratufa affinis (Raffles, 1821) -- valid -- Pale Giant Squirrel
  Ratufa bicolor (Sparrman, 1778) -- valid -- Black Giant Squirrel
  Ratufa indica (Erxleben, 1777) -- valid -- Indian Giant Squirrel
  Ratufa macroura (Pennant, 1769) -- valid -- Sri Lankan Giant Squirrel
  Redunca C. H. Smith, 1827 -- valid -- reedbucks
  Redunca arundinum (Boddaert, 1785) -- valid -- southern reedbuck, Southern Reedbuck
  Redunca fulvorufula (Afzelius, 1815) -- valid -- Mountain Reedbuck, mountain reedbuck
  Redunca redunca (Pallas, 1767) -- valid -- Bohar reedbuck, Common Reedbuck
  Reduncinae Knottnerus-Meyer, 1907 -- valid
  Reithrodon Waterhouse, 1837 -- valid
  Reithrodon auritus (Fischer, 1814) -- valid -- Bunny Rat, Hairy-soled Conyrat
  Reithrodontomys Giglioli, 1874 -- valid -- Harvest Mice, American Harvest Mice
  Reithrodontomys brevirostris Goodwin, 1943 -- valid -- Short-nosed Harvest Mouse
  Reithrodontomys burti Benson, 1939 -- valid -- Sonoran Harvest Mouse
  Reithrodontomys chrysopsis Merriam, 1900 -- valid -- Volcano Harvest Mouse
  Reithrodontomys creper Bangs, 1902 -- valid -- Chiriqui harvest mouse, Talamancan Harvest Mouse, Chiriquí Harvest Mouse
  Reithrodontomys darienensis Pearson, 1939 -- valid -- Darien Harvest Mouse
  Reithrodontomys fulvescens J. A. Allen, 1894 -- valid -- Ratón-cosechero leonado, Fulvous Harvest Mouse
  Reithrodontomys gracilis J. A. Allen and Chapman, 1897 -- valid -- Slender Harvest Mouse
  Reithrodontomys hirsutus Merriam, 1901 -- valid -- Hairy Harvest Mouse
  Reithrodontomys humulis (Audubon and Bachman, 1841) -- valid -- Eastern Harvest Mouse
  Reithrodontomys megalotis (Baird, 1857) -- valid -- Ratón-cosechero común, Western Harvest Mouse
  Reithrodontomys mexicanus (Saussure, 1860) -- valid -- Mexican Harvest Mouse
  Reithrodontomys microdon Merriam, 1901 -- valid -- Small-toothed Harvest Mouse
  Reithrodontomys montanus (Baird, 1855) -- valid -- Ratón-cosechero de pradera, Plains Harvest Mouse
  Reithrodontomys paradoxus Jones and Genoways, 1970 -- valid -- Nicaraguan Harvest Mouse
  Reithrodontomys raviventris Dixon, 1908 -- valid -- Salt-marsh Harvest Mouse
  Reithrodontomys rodriguezi Goodwin, 1943 -- valid -- Rodriguez's Harvest Mouse
  Reithrodontomys spectabilis Jones and Lawlor, 1965 -- valid -- Cozumel Harvest Mouse, Cozumel Island Harvest Mouse
  Reithrodontomys sumichrasti (Saussure, 1861) -- valid -- Sumichrast's Harvest Mouse
  Reithrodontomys tenuirostris Merriam, 1901 -- valid -- Narrow-nosed Harvest Mouse
  Reithrodontomys zacatecae Merriam, 1901 -- valid -- Zacatecas harvest mouse, Zacatecan Harvest Mouse
  Rhabdomys Thomas, 1916 -- valid
  Rhabdomys pumilio (Sparrman, 1784) -- valid -- Xeric Four-striped Grass Rat
  Rhagomys Thomas, 1917 -- valid
  Rhagomys rufescens (Thomas, 1886) -- valid -- Brazilian arboreal mouse, Rufescent Rhagomys
  Rheithrosciurus Gray, 1867 -- valid
  Rheithrosciurus macrotis (Gray, 1857) -- valid -- Tufted Ground Squirrel
  Rheomys Thomas, 1906 -- valid -- Central American Water Mice
  Rheomys mexicanus Goodwin, 1959 -- valid -- Mexican water mouse, Mexican Ichthyomyine, Goodwin's Water Mouse
  Rheomys raptor Goldman, 1912 -- valid -- Goldman's Water Mouse, Goldman's Ichthyomyine
  Rheomys thomasi Dickey, 1928 -- valid -- Thomas's water mouse, Thomas' Ichthyomyine, Thomas' Water Mouse
  Rheomys underwoodi Thomas, 1906 -- valid -- Underwood's Water Mouse, Underwood's Ichthyomyine
  Rhinoceros Linnaeus, 1758 -- valid
  Rhinoceros sondaicus Desmarest, 1822 -- valid -- Javan Rhinoceros, lesser one-horned rhinoceros, Javan one-horned rhinoceros
  Rhinoceros unicornis Linnaeus, 1758 -- valid -- Indian One-horned Rhinoceros, greater one-horned rhinoceros, Indian Rhinoceros, great Indian rhinoceros
  Rhinocerotidae Gray, 1821 -- valid -- Rhinoceroses, rhinos
  Rhinolophidae Gray, 1825 -- valid -- horseshoe bats
  Rhinolophinae Gray, 1825 -- invalid
  Rhinolophus Lacépède, 1799 -- valid
  Rhinolophus acuminatus Peters, 1871 -- valid -- Acuminate Horseshoe Bat
  Rhinolophus adami Aellen and Brosset, 1968 -- valid -- Adam's Horseshoe Bat
  Rhinolophus affinis Horsfield, 1823 -- valid -- Intermediate Horseshoe Bat
  Rhinolophus alcyone Temminck, 1853 -- valid -- Halcyon Horseshoe Bat
  Rhinolophus anderseni Cabrera, 1909 -- invalid -- Andersen's horseshoe bat
  Rhinolophus arcuatus Peters, 1871 -- valid -- Arcuate Horseshoe Bat
  Rhinolophus blasii Peters, 1867 -- valid -- Blasius's Horseshoe Bat
  Rhinolophus borneensis Peters, 1861 -- valid -- Bornean Horseshoe Bat
  Rhinolophus canuti Thomas and Wroughton, 1909 -- valid -- Canut's Horseshoe Bat, Knud's Horseshoe Bat
  Rhinolophus capensis Lichtenstein, 1823 -- valid -- Cape Horseshoe Bat
  Rhinolophus celebensis K. Andersen, 1905 -- valid -- Sulawesi Horseshoe Bat
  Rhinolophus clivosus Cretzschmar, 1826 -- valid -- Geoffroy's Horseshoe Bat
  Rhinolophus coelophyllus Peters, 1867 -- valid -- Croslet Horseshoe Bat
  Rhinolophus cognatus K. Andersen, 1906 -- valid -- Andaman Horseshoe Bat
  Rhinolophus cornutus Temminck, 1834 -- valid -- Little Japanese Horseshoe Bat
  Rhinolophus creaghi Thomas, 1896 -- valid -- Creagh's Horseshoe Bat
  Rhinolophus darlingi K. Andersen, 1905 -- valid -- Darling's Horseshoe Bat
  Rhinolophus deckenii Peters, 1868 -- valid -- Decken's Horseshoe Bat
  Rhinolophus denti Thomas, 1904 -- valid -- Dent's Horseshoe Bat
  Rhinolophus eloquens K. Andersen, 1905 -- valid -- Eloquent Horseshoe Bat
  Rhinolophus euryale Blasius, 1853 -- valid -- Mediterranean Horseshoe Bat
  Rhinolophus euryotis Temminck, 1835 -- valid -- Broad-eared Horseshoe Bat, New Guinea Broad-eared Horseshoe Bat
  Rhinolophus ferrumequinum (Schreber, 1774) -- valid -- Greater Horseshoe Bat
  Rhinolophus fumigatus Rüppell, 1842 -- valid -- Rüppell's Horseshoe Bat
  Rhinolophus guineensis Eisentraut, 1960 -- valid -- Guinean Horseshoe Bat
  Rhinolophus hildebrandti Peters, 1878 -- invalid -- Hildebrandt's horseshoe bat
  Rhinolophus hipposideros (Bechstein, 1800) -- valid -- Lesser Horseshoe Bat
  Rhinolophus imaizumii Hill and Yoshiyuki, 1980 -- invalid -- Imaizumi's Horseshoe Bat
  Rhinolophus inops K. Andersen, 1905 -- valid -- Philippine Forest Horseshoe Bat
  Rhinolophus keyensis Peters, 1871 -- valid -- Kai Horseshoe Bat, Insular Horseshoe Bat
  Rhinolophus landeri Martin, 1838 -- valid -- Lander's Horseshoe Bat
  Rhinolophus lepidus Blyth, 1844 -- valid -- Blyth's Horseshoe Bat
  Rhinolophus luctus Temminck, 1834 -- valid -- Woolly Horseshoe Bat, Great Woolly Horseshoe Bat
  Rhinolophus maclaudi Pousargues, 1897 -- valid -- Maclaud's Horseshoe Bat
  Rhinolophus macrotis Blyth, 1844 -- valid -- Big-eared Horseshoe Bat
  Rhinolophus malayanus Bonhote, 1903 -- valid -- Malayan Horseshoe Bat
  Rhinolophus marshalli Thonglongya, 1973 -- valid -- Marshall's Horseshoe Bat
  Rhinolophus megaphyllus Gray, 1834 -- valid -- Smaller Horseshoe Bat, Eastern Horseshoe Bat
  Rhinolophus mehelyi Matschie, 1901 -- valid -- Mehely's Horseshoe Bat
  Rhinolophus mitratus Blyth, 1844 -- valid -- Mitred Horseshoe Bat
  Rhinolophus monoceros K. Andersen, 1905 -- valid -- Formosan Lesser Horseshoe Bat, Formosan Horseshoe Bat
  Rhinolophus nereis K. Andersen, 1905 -- valid -- neriad horseshoe bat, Anamban Horseshoe Bat
  Rhinolophus osgoodi Sanborn, 1939 -- valid -- Osgood's Horseshoe Bat
  Rhinolophus paradoxolophus (Bourret, 1951) -- invalid -- Bourret's Horseshoe Bat
  Rhinolophus pearsonii Horsfield, 1851 -- valid -- Pearson's Horseshoe Bat
  Rhinolophus philippinensis Waterhouse, 1843 -- valid -- Large-eared Horseshoe Bat
  Rhinolophus pusillus Temminck, 1834 -- valid -- Least Horseshoe Bat
  Rhinolophus rex G. M. Allen, 1923 -- valid -- King Horseshoe Bat
  Rhinolophus robinsoni K. Andersen, 1918 -- valid -- Peninsular Horseshoe Bat, Robinson's Horseshoe Bat
  Rhinolophus rouxii Temminck, 1835 -- valid -- Rufous Horseshoe Bat, Indian Rufous Horseshoe Bat
  Rhinolophus rufus Eydoux and Gervais, 1836 -- valid -- Large Rufous Horseshoe Bat
  Rhinolophus sedulus K. Andersen, 1905 -- valid -- Lesser Woolly Horseshoe Bat
  Rhinolophus shameli Tate, 1943 -- valid -- Shamel's Horseshoe Bat
  Rhinolophus silvestris Aellen, 1959 -- valid -- Forest Horseshoe Bat, African Forest Horseshoe Bat
  Rhinolophus simplex K. Andersen, 1905 -- invalid -- Lombok horseshoe bat
  Rhinolophus simulator K. Andersen, 1904 -- valid -- Bushveld Horseshoe Bat
  Rhinolophus stheno K. Andersen, 1905 -- valid -- Lesser Brown Horseshoe Bat
  Rhinolophus subbadius Blyth, 1844 -- valid -- Little Nepalese Horseshoe Bat
  Rhinolophus subrufus K. Andersen, 1905 -- valid -- Small Rufous Horseshoe Bat
  Rhinolophus swinnyi Gough, 1908 -- valid -- Swinny's Horseshoe Bat
  Rhinolophus thomasi K. Andersen, 1905 -- valid -- Thomas's Horseshoe Bat
  Rhinolophus trifoliatus Temminck, 1834 -- valid -- Trefoil Horseshoe Bat
  Rhinolophus virgo K. Andersen, 1905 -- valid -- Yellow-faced Horseshoe Bat
  Rhinolophus yunanensis Dobson, 1872 -- valid -- Dobson's Horseshoe Bat
  Rhinonicteris Gray, 1847 -- valid
  Rhinonicteris aurantia (Gray, 1845) -- valid -- Orange Leaf-nosed Bat, Orange Diamond-faced Bat
  Rhinophylla Peters, 1865 -- valid -- little fruit bats
  Rhinophylla alethina Handley, 1966 -- valid -- Hairy Little Fruit Bat
  Rhinophylla fischerae Carter, 1966 -- valid -- Fischer's Little Fruit Bat
  Rhinophylla pumilio Peters, 1865 -- valid -- Dwarf Little Fruit Bat
  Rhinopoma E. Geoffroy, 1818 -- valid -- mouse-tailed bats
  Rhinopoma hardwickei Gray, 1831 -- invalid
  Rhinopoma microphyllum (Brünnich, 1782) -- valid -- Greater Mouse-tailed Bat
  Rhinopoma muscatellum Thomas, 1903 -- valid -- Small Mouse-tailed Bat, Muscat Mouse-tailed Bat
  Rhinopomatidae Bonaparte, 1838 -- valid -- mouse-tailed bats
  Rhinosciurus Blyth, 1856 -- valid
  Rhinosciurus laticaudatus (Müller, 1840) -- valid -- Shrew-faced Squirrel
  Rhipidomys Tschudi, 1845 -- valid -- American Climbing Mice, Climbing Mice
  Rhipidomys austrinus Thomas, 1921 -- valid -- Southern Climbing Mouse, Southern Andean Rhipidomys
  Rhipidomys caucensis J. A. Allen, 1913 -- valid -- Cauca Climbing Mouse, Colombian Rhipidomys
  Rhipidomys couesi (J. A. Allen and Chapman, 1893) -- valid -- Coues's Climbing Mouse, Coues' Rhipidomys
  Rhipidomys fulviventer Thomas, 1896 -- valid -- Buff-bellied Climbing Mouse, Tawny-bellied Rhipidomys
  Rhipidomys latimanus (Tomes, 1860) -- valid -- Broad-footed Climbing Mouse, Broad-footed Rhipidomys
  Rhipidomys leucodactylus (Tschudi, 1845) -- valid -- White-footed Climbing Mouse, White-footed Rhipidomys
  Rhipidomys macconnelli de Winton, 1900 -- valid -- MacConnell's Climbing Mouse, Tepui Rhipidomys
  Rhipidomys mastacalis (Lund, 1840) -- valid -- Long-tailed Climbing Mouse, Atlantic Forest Rhipidomys
  Rhipidomys nitela Thomas, 1901 -- valid -- Splendid Climbing Mouse, Guianan Rhipidomys
  Rhipidomys ochrogaster J. A. Allen, 1901 -- valid -- Yellow-bellied Climbing Mouse, Buff-bellied Rhipidomys
  Rhipidomys scandens Goldman, 1913 -- invalid -- Mount Pirri climbing mouse, Mt. Pirri climbing mouse
  Rhipidomys venezuelae Thomas, 1896 -- valid -- Venezuelan Climbing Mouse, Venezuelan Rhipidomys
  Rhipidomys venustus Thomas, 1900 -- valid -- Charming Climbing Mouse, Mérida Rhipidomys
  Rhipidomys wetzeli Gardner, 1989 -- valid -- Wetzel's Climbing Mouse, Wetzel's Rhipidomys
  Rhizomyinae Winge, 1887 -- valid
  Rhizomys Gray, 1831 -- valid -- Bamboo Rats
  Rhizomys pruinosus Blyth, 1851 -- valid -- Hoary Bamboo Rat
  Rhizomys sinensis Gray, 1831 -- valid -- Chinese Bamboo Rat
  Rhizomys sumatrensis (Raffles, 1821) -- valid -- Large Bamboo Rat, Indomalayan Bamboo Rat
  Rhizoplagiodontia Woods, 1989 -- valid
  Rhizoplagiodontia lemkei Woods, 1989 -- valid -- Lemke's Hutia
  Rhogeessa H. Allen, 1866 -- valid
  Rhogeessa alleni Thomas, 1892 -- valid -- Allen's Yellow Bat
  Rhogeessa genowaysi Baker, 1984 -- valid -- Genoways's Yellow Bat
  Rhogeessa gracilis Miller, 1897 -- valid -- Slender Yellow Bat
  Rhogeessa minutilla Miller, 1897 -- valid -- Tiny Yellow Bat, Little Desert Bat
  Rhogeessa mira LaVal, 1973 -- valid -- Least Yellow Bat
  Rhogeessa parvula H. Allen, 1866 -- valid -- Little Yellow Bat, Northern Little Yellow Bat
  Rhogeessa tumida H. Allen, 1866 -- valid -- Black-winged Little Yellow Bat, Central American Yellow Bat
  Rhombomys Wagner, 1841 -- valid
  Rhombomys opimus (Lichtenstein, 1823) -- valid -- Great Gerbil
  Rhynchocyon Peters, 1847 -- valid -- Checkered Elephant Shrews
  Rhynchocyon chrysopygus Günther, 1881 -- valid -- Golden-rumped Elephant Shrew, Golden-rumped Sengi
  Rhynchocyon cirnei Peters, 1847 -- valid -- Checkered Elephant Shrew, Chequered Sengi
  Rhynchocyon petersi Bocage, 1880 -- valid -- Black and Rufous Elephant Shrew, Black-and-rufous Sengi
  Rhynchogale Thomas, 1894 -- valid
  Rhynchogale melleri (Gray, 1865) -- valid -- Meller's Mongoose
  Rhyncholestes Osgood, 1924 -- valid -- Chilean 'shrew' opossums
  Rhyncholestes raphanurus Osgood, 1924 -- valid -- Chilean 'shrew' opossum, Long-nosed Caenolestid, Long-nosed Shrew-opossum
  Rhynchomeles Thomas, 1920 -- valid -- Ceram Island long-nosed bandicoot
  Rhynchomeles prattorum Thomas, 1920 -- valid -- Ceram Island long-nosed bandicoot, Seram Bandicoot
  Rhynchomys Thomas, 1895 -- valid -- Shrew Rats
  Rhynchomys isarogensis Musser and Freeman, 1981 -- valid -- Isarog Rhynchomys
  Rhynchomys soricoides Thomas, 1895 -- valid -- Northern Luzon Rhynchomys
  Rhynchonycteris Peters, 1867 -- valid -- Proboscis Bat
  Rhynchonycteris naso (Wied-Neuwied, 1820) -- valid -- Brazilian Long-nosed Bat, River Bat, Sharp-nosed Bat, Proboscis Bat
  Rodentia Bowdich, 1821 -- valid -- esquilo, preá, rato, roedor, rongeurs, rodents
  Romerolagus Merriam, 1896 -- valid
  Romerolagus diazi (Ferrari-Pérez, 1893) -- valid -- Volcano Rabbit
  Rousettus Gray, 1821 -- valid
  Rousettus amplexicaudatus (E. Geoffroy, 1810) -- valid -- Geoffroy's Rousette
  Rousettus angolensis (Bocage, 1898) -- invalid -- Angolan Rousette
  Rousettus celebensis K. Andersen, 1907 -- valid -- Sulawesi Rousette
  Rousettus egyptiacus (E. Geoffroy, 1810) -- invalid -- Egyptian Rousette
  Rousettus lanosus Thomas, 1906 -- invalid -- Long-haired Rousette
  Rousettus leschenaulti (Desmarest, 1820) -- invalid -- Leschenault's Rousette
  Rousettus madagascariensis G. Grandidier, 1928 -- valid -- Madagascan Rousette, Malagasy Rousette
  Rousettus obliviosus Kock, 1978 -- valid -- Comoro Rousette
  Rousettus spinalatus Bergmans and Hill, 1980 -- valid -- Bare-backed Rousette
  Rubrisciurus Ellerman, 1954 -- valid
  Rubrisciurus rubriventer (Müller and Schlegel, 1844) -- valid -- Sulawesi Giant Squirrel
  Rupicapra Blainville, 1816 -- valid -- chamois
  Rupicapra pyrenaica Bonaparte, 1845 -- valid -- Pyrenean chamoios, Pyrenean Chamois
  Rupicapra rupicapra (Linnaeus, 1758) -- valid -- Alpine Chamois, chamois
  Ruwenzorisorex Hutterer, 1986 -- valid
  Ruwenzorisorex suncoides (Osgood, 1936) -- valid -- Ruwenzori Shrew
  Saccolaimus Temminck, 1838 -- valid -- sheath-tailed bats, pouched bats
  Saccolaimus flaviventris (Peters, 1867) -- valid -- Yellow-bellied Sheath-tailed Bat, White-bellied Sheath-tailed Bat, Yellow-bellied Pouched Bat
  Saccolaimus mixtus Troughton, 1925 -- valid -- Papuan Sheath-tailed Bat, Cape York Sheath-tailed Bat, Troughton's Pouched Bat
  Saccolaimus peli (Temminck, 1853) -- valid -- Giant Pouched Bat, Black-hawk Bat, Pel's Pouched Bat
  Saccolaimus pluto (Miller, 1910) -- invalid -- Philippine Pouched Bat
  Saccolaimus saccolaimus (Temminck, 1838) -- valid -- Bare-rumped Sheath-tailed Bat, Naked-rumped Free-tail Bat, Naked-rumped Sheath-tailed Bat, Naked-tailed Saccolaimus, Pouch-bearing Tomb Bat, Pouched Tomb Bat, Naked-rumped Pouched Bat
  Saccopteryx Illiger, 1811 -- valid -- sac-winged bats
  Saccopteryx bilineata (Temminck, 1838) -- valid -- Greater White-lined Bat, Greater Sac-winged Bat
  Saccopteryx canescens Thomas, 1901 -- valid -- Frosted White-lined Bat, Gray White-lined Bat, Frosted Sac-winged Bat
  Saccopteryx gymnura Thomas, 1901 -- valid -- Amazonian White-lined Bat, Little White-lined Bat, Amazonian Sac-winged Bat
  Saccopteryx leptura (Schreber, 1774) -- valid -- Brown White-lined Bat, Lesser White-lined Bat, Lesser Sac-winged Bat
  Saccostomus Peters, 1846 -- valid -- Pouched Mice
  Saccostomus campestris Peters, 1846 -- valid -- Pouched Mouse, Southern African Pouched Mouse
  Saccostomus mearnsi Heller, 1910 -- valid -- Mearns's pouched mouse, East African Pouched Mouse
  Saguinus Hoffmannsegg, 1807 -- valid -- tamarins
  Saguinus bicolor (Spix, 1823) -- valid -- Brazilian Bare-faced Tamarin, Pied Tamarin
  Saguinus fuscicollis (Spix, 1823) -- invalid -- Spix's Saddle-back Tamarin, Brown-mantled Tamarin
  Saguinus geoffroyi (Pucheran, 1845) -- invalid -- Geoffroy's Tamarin
  Saguinus imperator (Goeldi, 1907) -- invalid -- Emperor Tamarin
  Saguinus inustus (Schwarz, 1951) -- invalid -- Mottled-face Tamarin, Mottle-faced Tamarin
  Saguinus labiatus (É. Geoffroy Saint-Hilaire, 1812) -- invalid -- Red-chested Mustached Tamarin, White-lipped Tamarin, Red-bellied Tamarin
  Saguinus leucopus (Günther, 1877) -- invalid -- Silvery-brown Bare-face Tamarin, White-footed Tamarin
  Saguinus midas (Linnaeus, 1758) -- valid -- Midas Tamarin, Red-handed Tamarin
  Saguinus mystax (Spix, 1823) -- invalid -- Black-chested Mustached Tamarin, Moustached Tamarin, Mustached Tamarin, Spix's Mustached Tamarin
  Saguinus nigricollis (Spix, 1823) -- invalid -- Black-mantled Tamarin
  Saguinus oedipus (Linnaeus, 1758) -- invalid -- Cotton-top Tamarin, Cottontop Tamarin
  Saguinus tripartitus (A. Milne-Edwards, 1878) -- invalid -- Golden-mantled Tamarin, Golden-mantled Saddle-back Tamarin
  Saiga Gray, 1843 -- valid
  Saiga tatarica (Linnaeus, 1766) -- valid -- Steppe Saiga, saiga
  Saimiri Voigt in G. Cuvier, 1831 -- valid -- squirrel monkeys
  Saimiri boliviensis (I. Geoffroy Saint-Hilaire and de Blainville, 1834) -- valid -- Bolivian Squirrel Monkey, Black-capped Squirrel Monkey
  Saimiri oerstedii (Reinhardt, 1872) -- valid -- Central American Squirrel Monkey
  Saimiri sciureus (Linnaeus, 1758) -- valid -- South American Squirrel Monkey, Common Squirrel Monkey, Guianan Squirrel Monkey
  Saimiri ustus (I. Geoffroy Saint-Hilaire, 1843) -- valid -- Golden-backed Squirrel Monkey, Bare-eared Squirrel Monkey
  Saimiri vanzolinii Ayres, 1985 -- valid -- Black Squirrel Monkey, Black-headed Squirrel Monkey
  Salanoia Gray, 1865 -- valid
  Salanoia concolor (I. Geoffroy Saint-Hilaire, 1837) -- valid -- Brown-tailed Mongoose, Brown-tailed Vontsira
  Salpingotus Vinogradov, 1922 -- valid -- Three-toed Pygmy Jerboas
  Salpingotus crassicauda Vinogradov, 1924 -- valid -- Thick-tailed Pygmy Jerboa
  Salpingotus heptneri Vorontsov and Smirnov, 1969 -- valid -- Heptner's Pygmy Jerboa
  Salpingotus kozlovi Vinogradov, 1922 -- valid -- Kozlov's Pygmy Jerboa
  Salpingotus michaelis Fitzgibbon, 1966 -- invalid -- Baluchistan Pygmy Jerboa
  Salpingotus pallidus Vorontsov and Shenbrot, 1984 -- valid -- Pallid Pygmy Jerboa, Pale Pygmy Jerboa
  Salpingotus thomasi Vinogradov, 1928 -- valid -- Thomas's Pygmy Jerboa
  Sarcophilus F. G. Cuvier, 1837 -- valid -- Tasmanian devil
  Sarcophilus laniarius (Owen, 1838) -- valid
  Scalopus Cuvier in Desmarest, 1804 -- invalid
  Scalopus aquaticus (Linnaeus, 1758) -- valid -- topos, Topo occidental, Eastern Mole
  Scandentia Wagner, 1855 -- valid -- Tree Shrews, Treeshrews
  Scapanulus Thomas, 1912 -- valid
  Scapanulus oweni Thomas, 1912 -- valid -- Gansu Mole
  Scapanus Pomel, 1848 -- valid -- western moles
  Scapanus latimanus (Bachman, 1842) -- valid -- topociego, Topo pata ancha, Broad-footed Mole
  Scapanus orarius True, 1896 -- valid -- Pacific mole, red-footed mole, Coast Mole
  Scapanus townsendii (Bachman, 1839) -- valid -- snow mole, Townsend's Mole
  Scapteromys Waterhouse, 1837 -- valid
  Scapteromys tumidus (Waterhouse, 1837) -- valid -- Swamp Rat, Uruguay Swamp Rat
  Scaptochirus A. Milne-Edwards, 1867 -- valid
  Scaptochirus moschatus A. Milne-Edwards, 1867 -- valid -- Short-faced Mole
  Scaptonyx A. Milne-Edwards, 1872 -- valid
  Scaptonyx fusicaudus A. Milne-Edwards, 1872 -- valid -- Long-tailed Mole
  Sciuridae Fischer de Waldheim, 1817 -- valid -- squirrels, marmots, chipmunks
  Sciurillus Thomas, 1914 -- valid
  Sciurillus pusillus (É. Geoffroy Saint-Hilaire, 1803) -- valid -- Neotropical Pygmy Squirrel
  Sciurinae Fischer de Waldheim, 1817 -- valid
  Sciurognathi -- invalid
  Sciurotamias Miller, 1901 -- valid -- Asian Rock Squirrels
  Sciurotamias davidianus (Milne-Edwards, 1867) -- valid -- Père David's Rock Squirrel
  Sciurotamias forresti (Thomas, 1922) -- valid -- Forrest's Rock Squirrel
  Sciurus Linnaeus, 1758 -- valid -- tree squirrels
  Sciurus aberti Woodhouse, 1853 -- valid -- Ardilla de Albert, Abert's Squirrel
  Sciurus aestuans Linnaeus, 1766 -- valid -- Guianan Squirrel
  Sciurus alleni Nelson, 1898 -- valid -- Allen's Squirrel
  Sciurus anomalus Gmelin, 1778 -- valid -- Caucasian Squirrel
  Sciurus arizonensis Coues, 1867 -- valid -- Ardilla de Arizona, Arizona Gray Squirrel
  Sciurus aureogaster F. Cuvier, 1829 -- valid -- Ardilla vientre rojo, Mexican gray squirrel, Red-bellied Squirrel
  Sciurus carolinensis Gmelin, 1788 -- valid -- gray squirrel, écureuil gris, Eastern Gray Squirrel
  Sciurus cinereus Linnaeus, 1758 -- invalid
  Sciurus colliaei Richardson, 1839 -- valid -- Collie's Squirrel
  Sciurus deppei Peters, 1863 -- valid -- Deppe's Squirrel
  Sciurus flammifer Thomas, 1904 -- valid -- Fiery Squirrel
  Sciurus gilvigularis Wagner, 1842 -- valid -- Yellow-throated Squirrel
  Sciurus granatensis Humboldt, 1811 -- valid -- Red-tailed Squirrel
  Sciurus griseus Ord, 1818 -- valid -- Ardilla gris, Western Gray Squirrel
  Sciurus ignitus (Gray, 1867) -- valid -- Bolivian Squirrel
  Sciurus igniventris Wagner, 1842 -- valid -- Northern Amazon Red Squirrel
  Sciurus lis Temminck, 1844 -- valid -- Japanese Squirrel
  Sciurus nayaritensis J. A. Allen, 1890 -- valid -- Nayarit squirrel, Ardilla de Nayarit, Mexican Fox Squirrel
  Sciurus niger Linnaeus, 1758 -- valid -- fox squirrel, Ardilla zorra, Eastern Fox Squirrel
  Sciurus niger bryanti H. H. Bailey, 1920 -- invalid
  Sciurus niger cinereus Linnaeus, 1758 -- valid -- Delmarva Peninsula fox squirrel, eastern fox squirrel
  Sciurus oculatus Peters, 1863 -- valid -- Peters's Squirrel
  Sciurus pucheranii (Fitzinger, 1867) -- valid -- Andean Squirrel
  Sciurus pyrrhinus Thomas, 1898 -- valid -- Junín Red Squirrel, Junin Red Squirrel
  Sciurus richmondi Nelson, 1898 -- valid -- Richmond's Squirrel
  Sciurus sabrinus Shaw, 1801 -- invalid
  Sciurus sanborni Osgood, 1944 -- valid -- Sanborn's Squirrel
  Sciurus spadiceus Olfers, 1818 -- valid -- Southern Amazon Red Squirrel
  Sciurus stramineus Eydoux and Souleyet, 1841 -- valid -- Guayaquil Squirrel
  Sciurus variegatoides Ogilby, 1839 -- valid -- Variegated Squirrel
  Sciurus vulgaris Linnaeus, 1758 -- valid -- Eurasian Red Squirrel
  Sciurus yucatanensis J. A. Allen, 1877 -- valid -- Yucatan Squirrel
  Scleronycteris Thomas, 1912 -- valid -- Ega Long-tongued Bat
  Scleronycteris ega Thomas, 1912 -- valid -- Ega Long-tongued Bat
  Scolomys Anthony, 1924 -- valid -- Spiny Mice
  Scolomys melanops Anthony, 1924 -- valid -- South American spiny mouse, Short-nosed Scolomys
  Scolomys ucayalensis Pacheco, 1991 -- valid -- Ucayali spiny mouse, Long-nosed Scolomys
  Scotinomys Thomas, 1913 -- valid -- Brown Mice
  Scotinomys teguina (Alston, 1877) -- valid -- Short-tailed Singing Mouse, Alston's Brown Mouse
  Scotinomys xerampelinus (Bangs, 1902) -- valid -- Chiriqui brown mouse, Chiriquí Brown Mouse, Long-tailed Singing Mouse
  Scotoecus Thomas, 1901 -- valid
  Scotoecus albofuscus (Thomas, 1890) -- valid -- Light-winged Lesser House Bat, Thomas' House Bat, Thomas's Lesser House Bat
  Scotoecus hirundo (de Winton, 1899) -- valid -- Dark-winged Lesser House Bat, White-bellied Lesser House Bat, Hinde's Lesser House Bat
  Scotoecus pallidus (Dobson, 1876) -- valid -- desert yellow bat, Desert Yellow Lesser House Bat
  Scotomanes Dobson, 1875 -- valid
  Scotomanes emarginatus (Dobson, 1871) -- invalid -- emarginate harlequin bat
  Scotomanes ornatus (Blyth, 1851) -- valid -- Harlequin Bat
  Scotonycteris Matschie, 1894 -- valid
  Scotonycteris ophiodon Pohle, 1943 -- invalid -- Pohle's Fruit Bat
  Scotonycteris zenkeri Matschie, 1894 -- valid -- Zenker's Fruit Bat
  Scotophilus Leach, 1821 -- valid
  Scotophilus borbonicus (E. Geoffroy, 1803) -- invalid -- Lesser Yellow Bat, Réunion House Bat, Bourbon Bat
  Scotophilus celebensis (Sody, 1928) -- valid -- Sulawesi Yellow Bat, Sulawesi Yellow House Bat
  Scotophilus dinganii (A. Smith, 1833) -- valid -- African Yellow Bat, Yellow-bellied House Bat, Dingan's Bat
  Scotophilus heathi (Horsfield, 1831) -- invalid -- greater Asiatic yellow bat
  Scotophilus kuhlii Leach, 1821 -- valid -- Lesser Asiatic Yellow Bat, Lesser Asiatic Yellow House Bat
  Scotophilus leucogaster (Cretzschmar, 1826) -- valid -- White-bellied Yellow Bat, White-bellied House Bat
  Scotophilus nigrita (Schreber, 1774) -- valid -- Schreber's Yellow Bat, Giant House Bat, Brown House Bat, Great Brown House Bat, Giant Yellow House Bat, Giant Brown Bat
  Scotophilus nux Thomas, 1904 -- valid -- Nut-colored Yellow Bat, Nut-colored House Bat, Dark House Bat, Nux Yellow House Bat
  Scotophilus robustus A. Milne-Edwards, 1881 -- valid -- Robust Yellow Bat, Robust House Bat
  Scotophilus viridis (Peters, 1852) -- valid -- greenish yellow bat, Green House Bat, Eastern Greenish Yellow Bat
  Scutisorex Thomas, 1913 -- valid
  Scutisorex somereni (Thomas, 1910) -- valid -- Armored Shrew, Armored Hero Shrew
  Sekeetamys Ellerman, 1947 -- valid
  Sekeetamys calurus (Thomas, 1892) -- valid -- Bushy-tailed Jird
  Selevinia Belosludov and Bazhanov, 1939 -- valid
  Selevinia betpakdalaensis Belosludov and Bazhanov, 1939 -- valid -- Betpakdala Dormouse, Desert Dormouse
  Semnocebus Gray, 1870 -- invalid
  Semnopithecus Desmarest, 1822 -- valid -- Indian langurs
  Semnopithecus entellus (Dufresne, 1797) -- valid -- Hanuman langur, Northern Plains Gray Langur, Bengal Sacred Langur
  Setifer Froriep, 1806 -- valid
  Setifer setosus (Schreber, 1778) -- valid -- Greater Hedgehog Tenrec
  Setonix Lesson, 1842 -- valid -- Quokka
  Setonix brachyurus (Quoy and Gaimard, 1830) -- valid -- Quokka
  Sicista Gray, 1827 -- valid -- Birch Mice
  Sicista armenica Sokolov and Baskevich, 1988 -- valid -- Armenian Birch Mouse
  Sicista betulina (Pallas, 1779) -- valid -- Northern Birch Mouse
  Sicista caucasica Vinogradov, 1925 -- valid -- Caucasian Birch Mouse
  Sicista caudata Thomas, 1907 -- valid -- Long-tailed Birch Mouse, Far Eastern Birch Mouse
  Sicista concolor (Büchner, 1892) -- valid -- Chinese Birch Mouse
  Sicista kazbegica Sokolov, Baskevich and Kovalskaya, 1986 -- valid -- Kazbeg Birch Mouse
  Sicista kluchorica Sokolov, Kovalskaya and Baskevich, 1980 -- valid -- Klochor Birch Mouse, Klukhor Birch Mouse, Kluchor Birch Mouse
  Sicista napaea Hollister, 1912 -- valid -- Altai Birch Mouse
  Sicista pseudonapaea Strautman, 1949 -- valid -- Gray Birch Mouse
  Sicista severtzovi Ognev, 1935 -- valid -- Severtzov's Birch Mouse, Dark Birch Mouse
  Sicista strandi Formozov, 1931 -- valid -- Strand's Birch Mouse
  Sicista subtilis (Pallas, 1773) -- valid -- Southern Birch Mouse
  Sicista tianshanica (Salensky, 1903) -- valid -- Tien Shan Birch Mouse
  Sicistinae J. A. Allen, 1901 -- valid
  Sigmoceros Heller, 1912 -- invalid
  Sigmoceros lichtensteinii (Peters, 1849) -- invalid -- Lichtenstein's hartebeest
  Sigmodon Say and Ord, 1825 -- valid -- Cotton Rats
  Sigmodon alleni Bailey, 1902 -- valid -- Allen's Cotton Rat
  Sigmodon alstoni (Thomas, 1881) -- valid -- Alston's Cotton Rat
  Sigmodon arizonae Mearns, 1890 -- valid -- Rata-algodonera de Arizona, Arizona Cotton Rat
  Sigmodon arizonae plenus Goldman, 1928 -- invalid
  Sigmodon fulviventer J. A. Allen, 1889 -- valid -- Rata-algodonera vientre leonado, Tawny-bellied Cotton Rat, Zacatecan Cotton Rat
  Sigmodon hispidus Say and Ord, 1825 -- valid -- Rata-algodonera crespa, Hispid Cotton Rat
  Sigmodon inopinatus Anthony, 1924 -- valid -- Unexpected Cotton Rat, Ecuadorian Cotton Rat
  Sigmodon leucotis Bailey, 1902 -- valid -- White-eared Cotton Rat
  Sigmodon mascotensis J. A. Allen, 1897 -- valid -- West Mexican Cotton Rat, Jaliscan Cotton Rat
  Sigmodon ochrognathus Bailey, 1902 -- valid -- Rata-algodonera nariz amarilla, Yellow-nosed Cotton Rat
  Sigmodon peruanus J. A. Allen, 1897 -- valid -- Peruvian Cotton Rat
  Sigmodontinae Wagner, 1843 -- valid -- New World rats, New World mice
  Sigmodontomys J. A. Allen, 1897 -- valid -- Rice Water Rats
  Sigmodontomys alfari J. A. Allen, 1897 -- valid -- Alfaro's Rice Water Rat, Alfaro's Water Rat, Short-tailed Sigmodontomys
  Sigmodontomys aphrastus (Harris, 1932) -- valid -- Harris's Rice Water Rat, Long-tailed Sigmodontomys
  Sirenia Illiger, 1811 -- valid -- dugongs, manatees, sea cows, sirens
  Sitomys viveiventris subgriseus Chapman, 1893 -- invalid
  Sminthopsis Thomas, 1887 -- valid -- Dunnarts, narrow-footed marsupial 'mice'
  Sminthopsis aitkeni Kitchener, Stoddart and Henry, 1984 -- valid -- Kangaroo Island Dunnart
  Sminthopsis archeri Van Dyck, 1986 -- valid -- Chestnut Dunnart
  Sminthopsis butleri Archer, 1979 -- valid -- Carpentarian Dunnart, Butler's Dunnart
  Sminthopsis crassicaudata (Gould, 1844) -- valid -- Fat-tailed Dunnart
  Sminthopsis dolichura Kitchener, Stoddart and Henry, 1984 -- valid -- Little Long-tailed Dunnart
  Sminthopsis douglasi Archer, 1979 -- valid -- Julia Creek Dunnart
  Sminthopsis fuliginosus (Gould, 1852) -- invalid -- Sooty Dunnart
  Sminthopsis gilberti Kitchener, Stoddart and Henry, 1984 -- valid -- Gilbert's Dunnart
  Sminthopsis granulipes Troughton, 1932 -- valid -- White-tailed Dunnart
  Sminthopsis griseoventer Kitchener, Stoddart and Henry, 1984 -- valid -- Gray-bellied Dunnart
  Sminthopsis hirtipes Thomas, 1898 -- valid -- Hairy-footed Dunnart, Greater Hairy-footed Dunnart
  Sminthopsis laniger (Gould, 1856) -- invalid
  Sminthopsis leucopus (Gray, 1842) -- valid -- White-footed Dunnart
  Sminthopsis longicaudata Spencer, 1909 -- valid -- Long-tailed Dunnart, long tailed marsupial-mouse, Greater Long-tailed Dunnart
  Sminthopsis macroura (Gould, 1845) -- valid -- Stripe-faced Dunnart
  Sminthopsis murina (Waterhouse, 1838) -- valid -- Slender-tailed Dunnart, Common Dunnart
  Sminthopsis ooldea Troughton, 1965 -- valid -- Ooldea Dunnart
  Sminthopsis psammophila Spencer, 1895 -- valid -- Sandhill Dunnart, large desert marsupial-mouse
  Sminthopsis virginiae (de Tarragon, 1847) -- valid -- Red-cheeked Dunnart
  Sminthopsis youngsoni McKenzie and Archer, 1982 -- valid -- Lesser Hairy-footed Dunnart
  Solenodon Brandt, 1833 -- valid
  Solenodon cubanus Peters, 1861 -- invalid -- Cuban Solenodon
  Solenodon marcanoi (Patterson, 1962) -- valid -- Marcano's Solenodon
  Solenodon paradoxus Brandt, 1833 -- valid -- Hispaniolan Solenodon, Haitian solenodon
  Solenodontidae Gill, 1872 -- valid
  Solisorex Thomas, 1924 -- valid
  Solisorex pearsoni Thomas, 1924 -- valid -- Pearson's Long-clawed Shrew
  Solomys Thomas, 1922 -- valid -- Naked-tailed Rats
  Solomys ponceleti (Troughton, 1935) -- valid -- Poncelet's Solomys
  Solomys salamonis (Ramsay, 1883) -- valid -- Florida Island Solomys
  Solomys salebrosus Troughton, 1936 -- valid -- Bougainville Island Solomys
  Solomys sapientis (Thomas, 1902) -- valid -- Isabel Island Solomys
  Solomys spriggsarum Flannery and Wickler, 1990 -- valid -- Buka Island Solomys
  Sorex Linnaeus, 1758 -- valid -- red-toothed shrews
  Sorex alaskanus Merriam, 1900 -- valid -- Glacier Bay Water Shrew
  Sorex alpinus Schinz, 1837 -- valid -- Alpine Shrew
  Sorex araneus Linnaeus, 1758 -- valid -- Common Shrew, Eurasian Shrew
  Sorex arcticus Kerr, 1792 -- valid -- black-backed shrew, saddle-back shrew, musaraigne arctique, Arctic Shrew, musaraigne nordique
  Sorex arizonae Diersing and Hoffmeister, 1977 -- valid -- Musaraña de Arizona, Arizona Shrew
  Sorex asper Thomas, 1914 -- valid -- Tien Shan Shrew
  Sorex bairdii Merriam, 1895 -- invalid -- Baird's Shrew
  Sorex bedfordiae Thomas, 1911 -- valid -- Lesser Striped Shrew
  Sorex bendirii (Merriam, 1884) -- valid -- Bendire's shrew, Bendire's water shrew, Pacific marsh shrew, Marsh Shrew, Pacific water shrew
  Sorex buchariensis Ognev, 1921 -- valid -- Buchara Shrew, Pamir Shrew
  Sorex caecutiens Laxmann, 1788 -- valid -- Laxmann's Shrew
  Sorex camtschatica Yudin, 1972 -- invalid -- Kamchatka Shrew
  Sorex cansulus Thomas, 1912 -- valid -- Gansu Shrew
  Sorex cinereus Kerr, 1792 -- valid -- common shrew, Masked Shrew, musaraigne cendrée, Cinereus Shrew
  Sorex coronatus Millet, 1828 -- valid -- Millet's Shrew, Crowned Shrew
  Sorex cylindricauda A. Milne-Edwards, 1872 -- valid -- Stripe-backed Shrew
  Sorex daphaenodon Thomas, 1907 -- valid -- Siberian Large-toothed Shrew, Large-toothed Siberian Shrew
  Sorex dispar Batchelder, 1911 -- valid -- Rock Shrew, musaraigne longicaude, gray long-tailed shrew, Long-tailed Shrew
  Sorex emarginatus Jackson, 1925 -- valid -- Zacatecas Shrew
  Sorex excelsus G. M. Allen, 1923 -- valid -- Chinese Highland Shrew, Lofty Shrew
  Sorex fisheri Merriam, 1895 -- invalid
  Sorex fontinalis Hollister, 1911 -- valid -- eastern shrew, Maryland shrew
  Sorex fumeus G. M. Miller, 1895 -- valid -- smokey shrew, musaraigne fuligineuse, Smoky Shrew
  Sorex gaspensis Anthony and Goodwin, 1924 -- invalid -- musaraigne de Gaspé, Gaspé Shrew
  Sorex gracillimus Thomas, 1907 -- valid -- Slender Shrew
  Sorex granarius G. S. Miller, 1910 -- valid -- Iberian Shrew, Lagranja Shrew
  Sorex haydeni Baird, 1857 -- valid -- Hayden's shrew, Prairie Shrew
  Sorex hosonoi Imaizumi, 1954 -- valid -- Azumi Shrew
  Sorex hoyi Baird, 1857 -- valid -- Pygmy Shrew, musaraigne pygmée, American Pygmy Shrew
  Sorex hydrodromus Dobson, 1889 -- invalid -- Pribilof Islands shrew
  Sorex isodon Turov, 1924 -- valid -- Taiga Shrew, Even-toothed Shrew
  Sorex jacksoni Hall and Gilmore, 1932 -- valid -- St. Lawrence Island Shrew, Saint Lawrence Island Shrew
  Sorex kozlovi Stroganov, 1952 -- invalid -- Kozlov's Shrew
  Sorex leucogaster Kuroda, 1933 -- valid -- Paramushir Shrew
  Sorex longirostris Bachman, 1837 -- valid -- Southeastern Shrew
  Sorex longirostris eionis Davis, 1957 -- valid -- Homossassa shrew
  Sorex lyelli Merriam, 1902 -- valid -- Lyell shrew, Mount Lyell shrew, Mt. Lyell Shrew
  Sorex macrodon Merriam, 1895 -- valid -- Large-toothed Shrew
  Sorex merriami Dobson, 1890 -- valid -- Merriam's Shrew
  Sorex milleri Jackson, 1947 -- valid -- Carmen Mountain Shrew
  Sorex minutissimus Zimmermann, 1780 -- valid -- Eurasian Least Shrew, miniscule shrew, Asian minute shrew
  Sorex minutus Linnaeus, 1766 -- valid -- Eurasian Pygmy Shrew
  Sorex mirabilis Ognev, 1937 -- valid -- Ussuri Shrew
  Sorex monticolus Merriam, 1890 -- valid -- Montane Shrew, Dusky Shrew
  Sorex monticolus monticolus Merriam, 1890 -- valid
  Sorex nanus Merriam, 1895 -- valid -- Rocky Mountain dwarf shrew, Dwarf Shrew
  Sorex neomexicanus Bailey, 1913 -- valid -- New Mexico Shrew
  Sorex oreopolus Merriam, 1892 -- valid -- Mexican Long-tailed Shrew
  Sorex ornatus Merriam, 1895 -- valid -- Suisun shrew, Musaraña adornada, Ornate Shrew
  Sorex ornatus ornatus Merriam, 1895 -- valid
  Sorex pacificus Coues, 1877 -- valid -- Pacific Shrew
  Sorex palustris Richardson, 1828 -- valid -- northern water shrew, Water Shrew, musaraigne palustre, American Water Shrew
  Sorex planiceps G. S. Miller, 1911 -- valid -- Kashmir Pygmy Shrew, Kashmir Shrew
  Sorex portenkoi Stroganov, 1956 -- valid -- Portenko's Shrew
  Sorex preblei Jackson, 1922 -- valid -- malheur shrew, Preble's Shrew
  Sorex pribilofensis Merriam, 1895 -- valid -- Pribilof Island Shrew
  Sorex raddei Satunin, 1895 -- valid -- Radde's Shrew
  Sorex roboratus Hollister, 1913 -- valid -- Flat-skulled Shrew
  Sorex sadonis Yoshiyuki and Imaizumi, 1986 -- invalid -- Sado Shrew
  Sorex samniticus Altobello, 1926 -- valid -- Apennine Shrew
  Sorex satunini Ognev, 1922 -- valid -- Caucasian Shrew
  Sorex saussurei Merriam, 1892 -- valid -- Saussure's Shrew
  Sorex sclateri Merriam, 1897 -- valid -- Sclater's Shrew
  Sorex shinto Thomas, 1905 -- valid -- Shinto Shrew
  Sorex sinalis Thomas, 1912 -- valid -- Chinese Shrew
  Sorex sonomae Jackson, 1921 -- valid -- Fog Shrew, Sonoma shrew
  Sorex stizodon Merriam, 1895 -- valid -- San Cristobal Shrew, Pale-toothed Shrew
  Sorex tenellus Merriam, 1895 -- valid -- great basin dwarf shrew, Inyo Shrew
  Sorex thibetanus Kastschenko, 1905 -- valid -- Tibetan Shrew
  Sorex trowbridgii Baird, 1857 -- valid -- Trowbridge's Shrew
  Sorex tundrensis Merriam, 1900 -- valid -- Tundra Shrew
  Sorex ugyunak R. M. Anderson and Rand, 1945 -- valid -- Barren Ground Shrew
  Sorex unguiculatus Dobson, 1890 -- valid -- Long-clawed Shrew
  Sorex vagrans Baird, 1858 -- valid -- wandering shrew, Vagrant Shrew
  Sorex ventralis Merriam, 1895 -- valid -- Chestnut-bellied Shrew
  Sorex veraepacis Alston, 1877 -- valid -- Verapaz Shrew
  Sorex volnuchini Ognev, 1922 -- valid -- Caucasian Pygmy Shrew
  Sorex wagneri Fitzinger, 1968 -- invalid
  Soricidae G. Fischer, 1814 -- valid -- shrews
  Soricinae G. Fischer, 1814 -- valid
  Soriculus Blyth, 1854 -- valid
  Soriculus caudatus (Horsfield, 1851) -- invalid -- Hodgson's Brown-toothed Shrew
  Soriculus fumidus Thomas, 1913 -- invalid -- Taiwan Brown-toothed Shrew
  Soriculus hypsibius de Winton, 1899 -- invalid -- De Winton's Shrew
  Soriculus lamula (Thomas, 1912) -- invalid -- Lamulate Shrew
  Soriculus leucops (Horsfield, 1855) -- invalid -- Long-tailed Brown-toothed Shrew
  Soriculus macrurus Blanford, 1888 -- invalid -- Long-tailed Mountain Shrew
  Soriculus nigrescens (Gray, 1842) -- valid -- Himalayan Shrew
  Soriculus parca (G. M. Allen, 1923) -- invalid -- Lowe's Shrew
  Soriculus salenskii Kastschenko, 1907 -- invalid -- Salenski's Shrew
  Soriculus smithii (Thomas, 1911) -- invalid -- Smith's Shrew
  Sotalia Gray, 1866 -- valid
  Sotalia fluviatilis (Gervais and Deville, 1853) -- valid -- Gray Dolphin, gray river dolphin, Tucuxi
  Sotalia fluviatilis fluviatilis (Gervais and Deville, 1853) -- invalid
  Sotalia fluviatilis guianensis (P.-J. van Bénéden, 1864) -- invalid
  Sousa Gray, 1866 -- valid -- humpbacked dolphins
  Sousa chinensis (Osbeck, 1765) -- valid -- Chinese white dolphin, Pacific humpback dolphin, Indo-Pacific Humpbacked Dolphin, Indo-Pacific Humpback Dolphin
  Sousa teuszii (Kükenthal, 1892) -- valid -- Atlantic Humpback Dolphin, Teusz's dolphin, Atlantic Humpbacked Dolphin
  Spalacinae Gray, 1821 -- valid
  Spalacopus Wagler, 1832 -- valid -- Coruro
  Spalacopus cyanus (Molina, 1782) -- valid -- Coruro
  Spalax Guldenstaedt, 1770 -- valid -- Greater Blind Mole Rats
  Spalax arenarius Reshetnik, 1939 -- valid -- Sandy Mole Rat, Sandy Blind Mole Rat
  Spalax giganteus Nehring, 1898 -- valid -- Giant Mole Rat, Giant Blind Mole Rat
  Spalax graecus Nehring, 1898 -- valid -- Bukovin Mole Rat, Balkan Blind Mole Rat
  Spalax microphthalmus Guldenstaedt, 1770 -- valid -- Greater Mole Rat, Greater Blind Mole Rat, Russian Mole Rat
  Spalax zemni (Erxleben, 1777) -- valid -- Podolsk mole rat, Podolsk Blind Mole Rat
  Spelaeomys Hooijer, 1957 -- valid
  Spelaeomys florensis Hooijer, 1957 -- valid -- Flores Island Spelaeomys
  Speothos Lund, 1839 -- valid
  Speothos venaticus (Lund, 1842) -- valid -- Bush Dog
  Spermophilopsis Blasius, 1884 -- valid
  Spermophilopsis leptodactylus (Lichtenstein, 1823) -- valid -- Long-clawed Ground Squirrel
  Spermophilus F. Cuvier, 1825 -- valid -- Ground Squirrels, old world ground squirrels
  Spermophilus adocetus (Merriam, 1903) -- invalid -- Tropical Ground Squirrel
  Spermophilus alashanicus Büchner, 1888 -- valid -- Alashan Ground Squirrel
  Spermophilus annulatus Audubon and Bachman, 1842 -- invalid -- Ring-tailed Ground Squirrel
  Spermophilus armatus Kennicott, 1863 -- invalid -- Uinta Ground Squirrel
  Spermophilus atricapillus Bryant, 1889 -- invalid -- Baja California Rock Squirrel
  Spermophilus beecheyi (Richardson, 1829) -- invalid -- Ardillón de California, California Ground Squirrel
  Spermophilus beldingi Merriam, 1888 -- invalid -- Belding's Ground Squirrel
  Spermophilus brunneus (A. H. Howell, 1928) -- invalid -- northern Idaho ground squirrel, Idaho Ground Squirrel
  Spermophilus canus Merriam, 1898 -- invalid -- Merriam's Ground Squirrel, gray ground squirrel
  Spermophilus citellus (Linnaeus, 1766) -- valid -- European Ground Squirrel, European Souslik
  Spermophilus columbianus (Ord, 1815) -- invalid -- Columbian Ground Squirrel
  Spermophilus dauricus Brandt, 1843 -- valid -- Daurian Ground Squirrel
  Spermophilus elegans Kennicott, 1863 -- invalid -- Wyoming Ground Squirrel
  Spermophilus erythrogenys Brandt, 1841 -- valid -- Red-cheeked Ground Squirrel
  Spermophilus franklinii (Sabine, 1822) -- invalid -- Franklin's Ground Squirrel
  Spermophilus fulvus (Lichtenstein, 1823) -- valid -- Yellow Ground Squirrel
  Spermophilus lateralis (Say, 1823) -- invalid -- Golden-mantled Ground Squirrel
  Spermophilus madrensis (Merriam, 1901) -- invalid -- Sierra Madre Ground Squirrel
  Spermophilus major (Pallas, 1778) -- valid -- Russet Ground Squirrel
  Spermophilus mexicanus (Erxleben, 1777) -- invalid -- Ardillón mexicano, Mexican Ground Squirrel
  Spermophilus mohavensis Merriam, 1889 -- invalid -- Mohave Ground Squirrel
  Spermophilus mollis Kennicott, 1863 -- invalid -- Piute Ground Squirrel
  Spermophilus musicus Ménétries, 1832 -- valid -- Caucasian Mountain Ground Squirrel
  Spermophilus parryii (Richardson, 1825) -- invalid -- Arctic Ground Squirrel
  Spermophilus perotensis Merriam, 1893 -- invalid -- Perote Ground Squirrel
  Spermophilus pygmaeus (Pallas, 1778) -- valid -- Little Ground Squirrel
  Spermophilus relictus (Kashkarov, 1923) -- valid -- Relict Ground Squirrel
  Spermophilus richardsonii (Sabine, 1822) -- invalid -- Richardson's Ground Squirrel
  Spermophilus saturatus (Rhoads, 1895) -- invalid -- Cascade Golden-mantled Ground Squirrel
  Spermophilus spilosoma Bennett, 1833 -- invalid -- Ardillón punteado, Spotted Ground Squirrel
  Spermophilus suslicus (Güldenstaedt, 1770) -- valid -- Speckled Ground Squirrel, Suslik
  Spermophilus tereticaudus Baird, 1858 -- invalid -- Ardillón cola redonda, Round-tailed Ground Squirrel
  Spermophilus tereticaudus chlorus (Elliot, 1904) -- invalid -- Coachella Valley round-tailed ground squirrel
  Spermophilus tereticaudus tereticaudus Baird, 1858 -- invalid
  Spermophilus townsendii Bachman, 1839 -- invalid -- Townsend's Ground Squirrel
  Spermophilus tridecemlineatus (Mitchill, 1821) -- invalid -- Thirteen-lined Ground Squirrel
  Spermophilus undulatus (Pallas, 1778) -- invalid -- Long-tailed Ground Squirrel
  Spermophilus variegatus (Erxleben, 1777) -- invalid -- Ardillón de roca, Rock Squirrel
  Spermophilus washingtoni (A. H. Howell, 1938) -- invalid -- Washington Ground Squirrel
  Spermophilus xanthoprymnus (Bennett, 1835) -- valid -- Asia Minor Ground Squirrel
  Sphaerias Miller, 1906 -- valid
  Sphaerias blanfordi (Thomas, 1891) -- valid -- Blanford's Fruit Bat
  Sphaeronycteris Peters, 1882 -- valid
  Sphaeronycteris toxophyllum Peters, 1882 -- valid -- Visored Bat
  Sphiggurus F. Cuvier, 1825 -- invalid
  Sphiggurus insidiosus (Lichtenstein, 1818) -- invalid
  Sphiggurus mexicanus (Kerr, 1792) -- invalid -- Mexican Hairy Dwarf Porcupine, Puercoespín mexicano
  Sphiggurus pallidus (Waterhouse, 1848) -- invalid
  Sphiggurus spinosus (F. Cuvier, 1823) -- invalid -- Paraguayan Hairy Dwarf Porcupine
  Sphiggurus vestitus (Thomas, 1899) -- invalid -- Brown Hairy Dwarf Porcupine
  Sphiggurus villosus (F. Cuvier, 1823) -- invalid -- Orange-spined Hairy Dwarf Porcupine
  Spilocuscus Gray, 1861 -- valid -- spotted cuscuses
  Spilocuscus maculatus (É. Geoffroy Saint-Hilaire, 1803) -- valid -- Common Spotted Cuscus
  Spilocuscus rufoniger (Zimara, 1937) -- valid -- Black-spotted Cuscus, Black Spotted Cuscus
  Spilogale Gray, 1865 -- valid -- spotted skunks
  Spilogale gracilis Merriam, 1890 -- valid -- Western Spotted Skunk
  Spilogale putorius (Linnaeus, 1758) -- valid -- Eastern Spotted Skunk, spotted skunk, Zorrillo-manchado común, Alleghanian Spotted Skunk
  Spilogale pygmaea Thomas, 1898 -- valid -- Pygmy Spotted Skunk
  Srilankamys Musser, 1981 -- valid
  Srilankamys ohiensis (Phillips, 1929) -- valid -- Phillips's Srilankamys, Ohiya Rat
  Steatomys Peters, 1846 -- valid -- Fat Mice
  Steatomys caurinus Thomas, 1912 -- valid -- Northwestern Fat Mouse, Northwestern African Fat Mouse
  Steatomys cuppedius Thomas and Hinton, 1920 -- valid -- Dainty Fat Mouse, Dainty African Fat Mouse
  Steatomys jacksoni Hayman, 1936 -- valid -- Jackson's Fat Mouse, Jackson's African Fat Mouse
  Steatomys krebsii Peters, 1852 -- valid -- Kreb's Fat Mouse, Kreb's African Fat Mouse
  Steatomys parvus Rhoads, 1896 -- valid -- Tiny Fat Mouse, Tiny African Fat Mouse
  Steatomys pratensis Peters, 1846 -- valid -- Fat Mouse, Common African Fat Mouse
  Stenella Gray, 1866 -- valid -- spotted dolphins, spinner dolphins, striped dolphins
  Stenella attenuata (Gray, 1846) -- valid -- Pantropical Spotted Dolphin, Delfín moteado
  Stenella clymene (Gray, 1850) -- valid -- short-snouted spinner dolphin, Delfín de Clymen, Clymene Dolphin
  Stenella coeruleoalba (Meyen, 1833) -- valid -- Striped Dolphin, Delfín listado
  Stenella frontalis (G. Cuvier, 1829) -- valid -- Delfín embridado, Atlantic Spotted Dolphin
  Stenella longirostris (Gray, 1828) -- valid -- long-snouted spinner dolphin, Spinner Dolphin, Delfín tornillo
  Stenella plagiodon (Cope, 1866) -- invalid
  Steno Gray, 1846 -- valid -- rough-toothed dolphins
  Steno bredanensis (G. Cuvier in Lesson, 1828) -- valid -- Rough-toothed Dolphin, Delfín dientes rugosos
  Stenocephalemys Frick, 1914 -- valid -- Ethiopian Narrow-headed Rats
  Stenocephalemys albocaudata Frick, 1914 -- valid -- White-tailed Stenocephalemys
  Stenocephalemys griseicauda F. Petter, 1972 -- valid -- Gray-tailed Stenocephalemys
  Stenoderma E. Geoffroy, 1818 -- valid -- red fruit-eating bats
  Stenoderma rufum Desmarest, 1820 -- valid -- Red Fig-eating Bat, Red Fruit Bat, Desmarest's Fig-eating Bat
  Stenodermatinae Gervais, 1856 -- valid
  Stenomys Thomas, 1910 -- invalid
  Stenomys ceramicus Thomas, 1920 -- invalid
  Stenomys niobe (Thomas, 1906) -- invalid
  Stenomys richardsoni (Tate, 1949) -- invalid
  Stenomys vandeuseni (Taylor and Calaby, 1982) -- invalid
  Stenomys verecundus (Thomas, 1904) -- invalid
  Stentor É. Geoffroy Saint-Hilaire, 1812 -- invalid
  Stochomys Thomas, 1926 -- valid
  Stochomys longicaudatus (Tullberg, 1893) -- valid -- Target Rat
  Strigocuscus Gray, 1861 -- valid
  Strigocuscus celebensis (Gray, 1858) -- valid -- Sulawesi Dwarf Cuscus, Small Sulawesi Cuscus
  Strigocuscus gymnotis (Peters and Doria, 1875) -- invalid
  Sturnira Gray, 1842 -- valid
  Sturnira aratathomasi Peterson and Tamsitt, 1968 -- valid -- Aratathomas's Yellow-shouldered Bat, Arata-Thomas Yellow-shouldered Bat
  Sturnira bidens (Thomas, 1915) -- valid -- Bidentate Yellow-shouldered Bat
  Sturnira bogotensis Shamel, 1927 -- valid -- Bogotan Yellow-shouldered Bat, Bogota Yellow-shouldered Bat
  Sturnira erythromos (Tschudi, 1844) -- valid -- Hairy Yellow-shouldered Bat
  Sturnira lilium (E. Geoffroy, 1810) -- valid -- Little Yellow-shouldered Bat
  Sturnira ludovici Anthony, 1924 -- valid -- Highland Yellow-shouldered Bat
  Sturnira luisi Davis, 1980 -- valid -- Luis's Yellow-shouldered Bat
  Sturnira magna de la Torre, 1966 -- valid -- Greater Yellow-shouldered Bat
  Sturnira mordax (Goodwin, 1938) -- valid -- Talamancan Yellow-shouldered Bat
  Sturnira nana Gardner and O'Neill, 1971 -- valid -- Lesser Yellow-shouldered Bat
  Sturnira thomasi de la Torre and Schwartz, 1966 -- invalid -- Thomas's Yellow-shouldered Bat
  Sturnira tildae de la Torre, 1959 -- valid -- Tilda Yellow-shouldered Bat, Tilda's Yellow-shouldered Bat
  Styloctenium Matschie, 1899 -- valid
  Styloctenium wallacei (Gray, 1866) -- valid -- Stripe-faced Fruit Bat, Wallace's Stripe-faced Fruit Bat
  Stylodipus G. M. Allen, 1925 -- valid -- Three-toed Jerboas, Thick-tailed Three-toed Jerboas
  Stylodipus andrewsi G. M. Allen, 1925 -- valid -- Andrew's Three-toed Jerboa, Andrews's Three-toed Jerboa
  Stylodipus sungorus Sokolov and Shenbrot, 1987 -- valid -- Mongolian Three-toed Jerboa
  Stylodipus telum (Lichtenstein, 1823) -- valid -- Thick-tailed Three-toed Jerboa
  Suidae Gray, 1821 -- valid -- hogs, pigs
  Suinae Gray, 1821 -- valid
  Suncus Ehrenberg, 1832 -- valid -- white-toothed shrews
  Suncus ater Medway, 1965 -- valid -- Black Shrew
  Suncus dayi (Dobson, 1888) -- valid -- Day's Shrew
  Suncus etruscus (Savi, 1822) -- valid -- Etruscan Shrew, White-toothed Pygmy Shrew
  Suncus fellowesgordoni W. W. A. Phillips, 1932 -- valid -- Sri Lankan Shrew, Sri Lanka Shrew
  Suncus hosei (Thomas, 1893) -- valid -- Bornean Pgymy Shrew, Hose's Shrew
  Suncus infinitesimus (Heller, 1912) -- valid -- Least Dwarf Shrew
  Suncus lixus (Thomas, 1898) -- invalid -- Greater Dwarf Shrew
  Suncus madagascariensis (Coquerel, 1848) -- invalid -- Madagascan Pgymy Shrew, Madagascan Shrew
  Suncus malayanus (Kloss, 1917) -- valid -- Malayan Pygmy Shrew
  Suncus mertensi Kock, 1974 -- valid -- Flores Shrew
  Suncus montanus (Kelaart, 1850) -- valid -- Asian Highland Shrew, Sri Lanka Highland Shrew
  Suncus murinus (Linnaeus, 1766) -- valid -- house shrew, Asian House Shrew
  Suncus remyi Brosset, Dubost and Heim de Balsac, 1965 -- valid -- Remy's Pygmy Shrew, Remy's Shrew
  Suncus stoliczkanus (Anderson, 1877) -- valid -- Anderson's Shrew
  Suncus varilla (Thomas, 1895) -- valid -- Lesser Dwarf Shrew
  Suncus zeylanicus Phillips, 1928 -- valid -- Jungle Shrew
  Sundamys Musser and Newcomb, 1983 -- valid -- Giant Sunda Rats
  Sundamys infraluteus (Thomas, 1888) -- valid -- Mountain Sundamys
  Sundamys maxi (Sody, 1932) -- valid -- Javan Sundamys
  Sundamys muelleri (Jentink, 1879) -- valid -- Müller's Sundamys, Müller's Rat
  Sundasciurus Moore, 1958 -- valid -- Sunda Squirrels
  Sundasciurus brookei (Thomas, 1892) -- valid -- Brooke's Squirrel
  Sundasciurus davensis (Sanborn, 1952) -- valid -- Davao Squirrel
  Sundasciurus fraterculus (Thomas, 1895) -- valid -- Fraternal Squirrel
  Sundasciurus hippurus (I. Geoffroy Saint-Hilaire, 1831) -- valid -- Horse-tailed Squirrel
  Sundasciurus hoogstraali (Sanborn, 1952) -- valid -- Busuanga Squirrel
  Sundasciurus jentinki (Thomas, 1887) -- valid -- Jentink's Squirrel, Jentinck's Squirrel
  Sundasciurus juvencus (Thomas, 1908) -- valid -- Northern Palawan Tree Squirrel
  Sundasciurus lowii (Thomas, 1892) -- valid -- Low's Squirrel
  Sundasciurus mindanensis (Steere, 1890) -- valid -- Mindanao Squirrel
  Sundasciurus moellendorffi (Matschie, 1898) -- valid -- Culion Tree Squirrel
  Sundasciurus philippinensis (Waterhouse, 1839) -- valid -- Philippine Tree Squirrel
  Sundasciurus rabori Heaney, 1979 -- valid -- Palawan Montane Squirrel
  Sundasciurus samarensis (Steere, 1890) -- valid -- Samar Squirrel
  Sundasciurus steerii (Günther, 1877) -- valid -- Southern Palawan Tree Squirrel
  Sundasciurus tenuis (Horsfield, 1824) -- valid -- Slender Squirrel
  Surdisorex Thomas, 1906 -- valid
  Surdisorex norae Thomas, 1906 -- valid -- Aberdare Mole Shrew, Aberdare Shrew
  Surdisorex polulus Hollister, 1916 -- valid -- Mt. Kenya Mole Shrew, Mt. Kenya Shrew, Mount Kenya Mole Shrew
  Suricata Desmarest, 1804 -- valid
  Suricata suricatta (Schreber, 1776) -- valid -- Meerkat
  Sus Linnaeus, 1758 -- valid -- pigs
  Sus barbatus Müller, 1838 -- valid -- bearded pig, Bearded Pig
  Sus bucculentus Heude, 1892 -- valid -- Heude's Pig, Viet Nam warty pig
  Sus cebifrons Heude, 1888 -- valid -- Visayan warty pig, Visayan Warty Pig
  Sus celebensis Müller and Schlegel, 1843 -- valid -- Celebes Warty Pig, Celebes wild boar
  Sus heureni Hardjasasmita, 1987 -- invalid -- Flores warty pig
  Sus philippensis Nehring, 1886 -- valid -- Philippine warty pig, Philippine Warty Pig
  Sus salvanius (Hodgson, 1847) -- valid -- Pygmy Hog, pygmy hog
  Sus scrofa Linnaeus, 1758 -- valid -- wild boar, pig, pig (feral), Wild Boar
  Sus timoriensis Müller and Schlegel, 1845 -- invalid -- Timor wild boar
  Sus verrucosus Müller, 1840 -- invalid -- Javan pig, Java Warty Pig
  Syconycteris Matschie, 1899 -- valid
  Syconycteris australis (Peters, 1867) -- valid -- Southern Blossom Bat
  Syconycteris carolinae Rozendaal, 1984 -- valid -- Halmahera blossom bat, Halmaheran Blossom Bat
  Syconycteris hobbit Ziegler, 1982 -- valid -- Moss-forest Blossom Bat
  Sylvicapra Ogilby, 1837 -- valid
  Sylvicapra grimmia (Linnaeus, 1758) -- valid -- bush duiker, gray duiker, Bush Duiker
  Sylvilagus Gray, 1867 -- valid -- Cottontails
  Sylvilagus aquaticus (Bachman, 1837) -- valid -- Swamp Rabbit, Swamper, Cane Cutter, Cane Jake
  Sylvilagus audubonii (Baird, 1858) -- valid -- Desert Cottontail, Audubon's Cottontail
  Sylvilagus bachmani (Waterhouse, 1839) -- valid -- Conejo matorralero, Brush Rabbit
  Sylvilagus bachmani bachmani (Waterhouse, 1839) -- valid
  Sylvilagus bachmani riparius Orr, 1935 -- valid -- Riparian Brush Rabbit
  Sylvilagus brasiliensis (Linnaeus, 1758) -- valid -- Tapeti, Forest Rabbit
  Sylvilagus cunicularius (Waterhouse, 1848) -- valid -- conejo montés, conejo serrano, Mexican Cottontail
  Sylvilagus dicei Harris, 1932 -- valid -- Dice's Cottontail, conejo de montaña
  Sylvilagus floridanus (J. A. Allen, 1890) -- valid -- Conejo serrano, lapin à queue blanche, Eastern Cottontail, Florida cottontail
  Sylvilagus graysoni (J. A. Allen, 1877) -- valid -- Tres Marias rabbit, Tres Marias Cottontail
  Sylvilagus idahoensis (Merriam, 1891) -- invalid -- Pygmy Rabbit
  Sylvilagus insonus (Nelson, 1904) -- valid -- Omiltemi Rabbit, Omilteme Cottontail
  Sylvilagus mansuetus Nelson, 1907 -- valid -- San José Brush Rabbit
  Sylvilagus nuttallii (Bachman, 1837) -- valid -- Nuttall's cottontail, Mountain Cottontail
  Sylvilagus obscurus Chapman, Cramer, Deppenaar and Robinson, 1992 -- valid -- Appalachian Cottontail, Wood Rabbit, Mountain Rabbit, Mountain Cottontail, Bluebelly
  Sylvilagus palustris (Bachman, 1837) -- valid -- Marsh Rabbit
  Sylvilagus palustris hefneri Lazell, 1984 -- valid -- Lower Keys marsh rabbit, Lower Keys rabbit
  Sylvilagus transitionalis (Bangs, 1895) -- valid -- New England Cottontail, Coney, Wood Rabbit
  Sylvisorex Thomas, 1904 -- valid
  Sylvisorex granti Thomas, 1907 -- valid -- Grant's Forest Shrew, Grant's Shrew
  Sylvisorex howelli Jenkins, 1984 -- valid -- Howell's Forest Shrew, Howell's Shrew
  Sylvisorex isabellae Heim de Balsac, 1968 -- valid -- Bioko Forest Shrew, Isabella Shrew
  Sylvisorex johnstoni (Dobson, 1888) -- valid -- Johnston's Forest Shrew, Johnston's Shrew
  Sylvisorex lunaris Thomas, 1906 -- valid -- Moon Forest Shrew, Crescent Shrew
  Sylvisorex megalura (Jentink, 1888) -- invalid -- Climbing Shrew
  Sylvisorex morio (Gray, 1862) -- valid -- Mt. Cameroon Forest Shrew, Arrogant Shrew, Mount Cameroon Forest Shrew
  Sylvisorex ollula Thomas, 1913 -- valid -- Greater Forest Shrew, Forest Muskshrew
  Sylvisorex oriundus Hollister, 1916 -- valid -- Lesser Forest Shrew, Mountain Shrew
  Sylvisorex vulcanorum Hutterer and Verheyen, 1985 -- valid -- Volcano Shrew, Volcano Forest Shrew
  Synaptomys Baird, 1857 -- valid -- Bog Lemmings
  Synaptomys borealis (Richardson, 1828) -- valid -- campagnol-lemming boréale, Northern Bog Lemming
  Synaptomys cooperi Baird, 1857 -- valid -- campagnol-lemming de Cooper, Southern Bog Lemming
  Syncerus Hodgson, 1847 -- valid
  Syncerus caffer (Sparrman, 1779) -- valid -- African buffalo, Cape buffalo, African Buffalo
  Syntheosciurus Bangs, 1902 -- valid
  Syntheosciurus brochus Bangs, 1902 -- valid -- Bangs's Mountain Squirrel
  Syphonia Rafinesque, 1815 -- invalid
  Tachyglossidae Gill, 1872 -- valid -- spiny anteaters, echidnas
  Tachyglossus Illiger, 1811 -- valid -- short-nosed echidna
  Tachyglossus aculeatus (Shaw, 1792) -- valid -- Short-beaked Echidna
  Tachyoryctes Rüppell, 1835 -- valid -- African Mole Rats
  Tachyoryctes ankoliae Thomas, 1909 -- valid -- Ankole Mole Rat, Ankole African Mole Rat
  Tachyoryctes annectens (Thomas, 1891) -- valid -- Mianzini mole rat, Mianzini African Mole Rat
  Tachyoryctes audax Thomas, 1910 -- valid -- Audacious Mole Rat, Aberdare Mountains African Mole Rat
  Tachyoryctes daemon Thomas, 1909 -- valid -- Demon Mole Rat, Demon African Mole Rat
  Tachyoryctes macrocephalus (Rüppell, 1842) -- valid -- Big-headed Mole Rat, Ethiopian African Mole Rat
  Tachyoryctes naivashae Thomas, 1909 -- valid -- Naivasha Mole Rat, Navivasha African Mole Rat
  Tachyoryctes rex Heller, 1910 -- valid -- King Mole Rat, King African Mole Rat
  Tachyoryctes ruandae Lönnberg and Gyldenstolpe, 1925 -- valid -- Ruanda Mole Rat, Rwanda African Mole Rat
  Tachyoryctes ruddi Thomas, 1909 -- valid -- Rudd's Mole Rat, Rudd's African Mole Rat
  Tachyoryctes spalacinus Thomas, 1909 -- valid -- Embi Mole Rat, Embi African Mole Rat
  Tachyoryctes splendens (Rüppell, 1835) -- valid -- East African Mole Rat, Northeast African Mole Rat
  Tadarida Rafinesque, 1814 -- valid -- guano bats
  Tadarida aegyptiaca (E. Geoffroy, 1818) -- valid -- Egyptian Free-tailed Bat
  Tadarida australis (Gray, 1839) -- invalid -- White-striped Free-tailed Bat
  Tadarida brasiliensis (I. Geoffroy, 1824) -- valid -- Murciélago-cola suelta brasileño, Brazilian Free-tailed Bat, Mexican Free-tailed Bat
  Tadarida espiritosantensis (Ruschi, 1951) -- invalid -- Espirito Santo Free-tailed Bat
  Tadarida fulminans (Thomas, 1903) -- valid -- Madagascan Large Free-tailed Bat, Malagasy Free-tailed Bat
  Tadarida lobata (Thomas, 1891) -- valid -- Kenyan Big-eared Free-tailed Bat, Big-eared Free-tailed Bat
  Tadarida teniotis (Rafinesque, 1814) -- valid -- European Free-tailed Bat
  Tadarida ventralis (Heuglin, 1861) -- valid -- African Giant Free-tailed Bat, Giant Free-tailed Bat
  Taeromys Sody, 1941 -- valid -- Sulawesi Rats
  Taeromys arcuatus (Tate and Archbold, 1935) -- valid -- Southeastern Mountain Taeromys
  Taeromys callitrichus (Jentink, 1879) -- valid -- Greater Taeromys
  Taeromys celebensis (Gray, 1867) -- valid -- Long-tailed Taeromys
  Taeromys hamatus (Miller and Hollister, 1921) -- valid -- Central Mountain Taeromys
  Taeromys punicans (Miller and Hollister, 1921) -- valid -- Reddish-furred Taeromys
  Taeromys taerae (Sody, 1932) -- valid -- Northeastern Mountain Taeromys
  Talpa Linnaeus, 1758 -- valid
  Talpa altaica Nikolsky, 1883 -- valid -- Altai Mole, Siberian Mole
  Talpa caeca Savi, 1822 -- valid -- Blind Mole, Mediterranean Mole
  Talpa caucasica Satunin, 1908 -- valid -- Caucasian Mole
  Talpa europaea Linnaeus, 1758 -- valid -- European Mole
  Talpa levantis Thomas, 1906 -- valid -- Levant Mole, Levantine Mole
  Talpa occidentalis Cabrera, 1907 -- valid -- Spanish Mole, Iberian Mole
  Talpa romana Thomas, 1902 -- valid -- Roman Mole
  Talpa stankovici V. Martino and E. Martino, 1931 -- valid -- Balkan Mole, Stankovic's Mole
  Talpa streeti Lay, 1965 -- invalid -- Persian Mole
  Talpidae G. Fischer, 1814 -- valid -- desmans, moles, shrew-moles
  Talpinae G. Fischer, 1814 -- valid -- desmans, moles
  Tamandua Gray, 1825 -- valid -- tamandua
  Tamandua mexicana (Saussure, 1860) -- valid -- Northern Tamandua
  Tamandua tetradactyla (Linnaeus, 1758) -- valid -- Southern Tamandua, Yellow Tamandua, Collared Anteater, Lesser Anteater
  Tamias Illiger, 1811 -- valid -- Chipmunks
  Tamias alpinus Merriam, 1893 -- valid -- Alpine Chipmunk
  Tamias amoenus J. A. Allen, 1890 -- valid -- Yellow-pine Chipmunk
  Tamias bulleri J. A. Allen, 1889 -- valid -- Buller's Chipmunk
  Tamias canipes (V. Bailey, 1902) -- valid -- Gray-footed Chipmunk
  Tamias cinereicollis J. A. Allen, 1890 -- valid -- Gray-collared Chipmunk
  Tamias dorsalis Baird, 1855 -- valid -- Cliff Chipmunk
  Tamias durangae (J. A. Allen, 1903) -- valid -- Durango Chipmunk
  Tamias merriami J. A. Allen, 1889 -- valid -- Merriam's Chipmunk
  Tamias minimus Bachman, 1839 -- valid -- tamia mineur, Least Chipmunk
  Tamias minimus atristriatus (V. Bailey, 1913) -- valid -- Penñasco least chipmunk
  Tamias minimus minimus Bachman, 1839 -- valid
  Tamias obscurus J. A. Allen, 1890 -- valid -- California Chipmunk, Dusky Chipmunk
  Tamias ochrogenys (Merriam, 1897) -- valid -- Yellow-cheeked Chipmunk, Redwood Chipmunk
  Tamias palmeri (Merriam, 1897) -- valid -- Palmer's Chipmunk
  Tamias panamintinus Merriam, 1893 -- valid -- Panamint Chipmunk
  Tamias quadrimaculatus Gray, 1867 -- valid -- Long-eared Chipmunk
  Tamias quadrivittatus (Say, 1823) -- valid -- Colorado Chipmunk
  Tamias ruficaudus (A. H. Howell, 1920) -- valid -- Red-tailed Chipmunk
  Tamias rufus (Hoffmeister and Ellis, 1979) -- valid -- Hopi Chipmunk
  Tamias senex J. A. Allen, 1890 -- valid -- Allen's Chipmunk, Shadow Chipmunk
  Tamias sibiricus (Laxmann, 1769) -- valid -- Siberian Chipmunk
  Tamias siskiyou (A. H. Howell, 1922) -- valid -- Siskiyou Chipmunk
  Tamias sonomae (Grinnell, 1915) -- valid -- Sonoma Chipmunk
  Tamias speciosus Merriam, 1890 -- valid -- Lodgepole Chipmunk
  Tamias striatus (Linnaeus, 1758) -- valid -- tamia rayé, Eastern Chipmunk
  Tamias townsendii Bachman, 1839 -- valid -- Townsend's Chipmunk
  Tamias umbrinus J. A. Allen, 1890 -- valid -- Uinta Chipmunk
  Tamiasciurus Trouessart, 1880 -- valid -- chickarees, Red Squirrels
  Tamiasciurus douglasii (Bachman, 1839) -- valid -- Douglas's Squirrel
  Tamiasciurus hudsonicus (Erxleben, 1777) -- valid -- écureuil roux, Red Squirrel
  Tamiasciurus hudsonicus grahamensis (J. A. Allen, 1894) -- valid -- Mount Graham red squirrel
  Tamiasciurus mearnsi (Townsend, 1897) -- valid -- Mearns's Squirrel
  Tamiops J. A. Allen, 1906 -- valid -- Asiatic Striped Squirrels
  Tamiops macclellandi (Horsfield, 1840) -- invalid -- Himalayan Striped Squirrel
  Tamiops maritimus (Bonhote, 1900) -- valid -- Maritime Striped Squirrel
  Tamiops rodolphei (Milne-Edwards, 1867) -- invalid -- Cambodian Striped Squirrel
  Tamiops swinhoei (Milne-Edwards, 1874) -- valid -- Swinhoe's Striped Squirrel
  Taphozous E. Geoffroy, 1818 -- valid -- tomb bats, sheath-tailed bats
  Taphozous australis Gould, 1854 -- valid -- Coastal Sheath-tailed Bat, Little Sheath-tailed Bat, North-eastern Sheath-tailed Bat, Southern Sheath-tailed Bat, Coastal Tomb Bat
  Taphozous georgianus Thomas, 1915 -- valid -- Common Sheath-tailed Bat, Sharp-nosed Tomb Bat
  Taphozous hamiltoni Thomas, 1920 -- valid -- Hamilton's Tomb Bat
  Taphozous hildegardeae Thomas, 1909 -- valid -- White-winged Tomb Bat, Hildegarde's Tomb Bat
  Taphozous hilli Kitchener, 1980 -- valid -- Hill's Sheath-tailed Bat, Slender-toothed Sheath-tailed Bat, Hill's Tomb Bat
  Taphozous kapalgensis McKean and Friend, 1979 -- valid -- Arnhem Sheath-tailed Bat, White-striped Sheath-tailed Bat, Arnhem Tomb Bat
  Taphozous longimanus Hardwicke, 1825 -- valid -- Long-winged Sheath-tailed Bat, Long-winged Tomb Bat
  Taphozous mauritianus E. Geoffroy, 1818 -- valid -- Mauritian Tomb Bat
  Taphozous melanopogon Temminck, 1841 -- valid -- Philippine Tomb Bat, Black-bearded Tomb Bat
  Taphozous nudiventris Cretzschmar, 1826 -- valid -- Naked-rumped Tomb Bat
  Taphozous perforatus E. Geoffroy, 1818 -- valid -- African Taphozous, Lesser Tomb Bat, Perforated Taphozous Bat, Egyptian Tomb Bat
  Taphozous philippinensis Waterhouse, 1845 -- invalid -- Philippine Tomb Bat
  Taphozous theobaldi Dobson, 1872 -- valid -- Theobald's Bat, Theobald's Tomb Bat
  Tapiridae Gray, 1821 -- valid -- Tapirs
  Tapirus Brünnich, 1771 -- invalid
  Tapirus bairdii (Gill, 1865) -- invalid -- Central American tapir, Baird's Tapir
  Tapirus indicus Desmarest, 1819 -- invalid -- Malayan Tapir, Asian tapir
  Tapirus pinchaque (Roulin, 1829) -- valid -- Woolly Tapir, Mountain Tapir
  Tapirus terrestris (Linnaeus, 1758) -- valid -- South American Tapir, Brazilian Tapir
  Tarsiidae Gray, 1825 -- valid -- tarsiers
  Tarsipedidae Gervais and Verreaux, 1842 -- valid -- honey possum
  Tarsipes Gervais and Verreaux, 1842 -- valid
  Tarsipes rostratus Gervais and Verreaux, 1842 -- valid -- Honey Possum
  Tarsius Storr, 1780 -- valid
  Tarsius bancanus Horsfield, 1821 -- invalid
  Tarsius dianae Niemitz, Nietsch, Warter and Rumpler, 1991 -- invalid -- Diana Tarsier
  Tarsius pumilus Miller and Hollister, 1921 -- valid -- Sulawesi Mountain Tarsier, Pygmy Tarsier
  Tarsius spectrum (Pallas, 1778) -- invalid -- Spectral Tarsier
  Tarsius syrichta (Linnaeus, 1758) -- invalid
  Tarsomys Mearns, 1905 -- valid -- Long-footed Rats
  Tarsomys apoensis Mearns, 1905 -- valid -- Dusky Tarsomys
  Tarsomys echinatus Musser and Heaney, 1992 -- valid -- Spiny Tarsomys
  Tasmacetus Oliver, 1937 -- valid -- Tasmanian beaked whales
  Tasmacetus shepherdi Oliver, 1937 -- valid -- Tasmanian beaked whale, Tasman beaked whale, Shepherd's Beaked Whale
  Tateomys Musser, 1969 -- valid -- Greater Sulawesian Shrew Rats
  Tateomys macrocercus Musser, 1982 -- valid -- Long-tailed Sulawesian Shrew Rat
  Tateomys rhinogradoides Musser, 1969 -- valid -- Tate's Sulawesian Shrew Rat
  Tatera Lataste, 1882 -- valid -- Large Naked-soled Gerbils
  Tatera afra (Gray, 1830) -- invalid -- Cape gerbil
  Tatera boehmi (Noack, 1887) -- invalid -- Boehm's gerbil
  Tatera brantsii (A. Smith, 1836) -- invalid -- Highveld Gerbil
  Tatera guineae Thomas, 1910 -- invalid -- Guinea Gerbil
  Tatera inclusa Thomas and Wroughton, 1908 -- invalid -- Gorongoza gerbil
  Tatera indica (Hardwicke, 1807) -- valid -- Indian Gerbil, Antelope Rat
  Tatera kempi Wroughton, 1906 -- invalid -- Kemp's gerbil
  Tatera leucogaster (Peters, 1852) -- invalid -- Bushveld Gerbil
  Tatera nigricauda (Peters, 1878) -- invalid -- Black-tailed Gerbil
  Tatera phillipsi (de Winton, 1898) -- invalid -- Phillip's Gerbil
  Tatera robusta (Cretzschmar, 1826) -- invalid -- Fringe-tailed Gerbil
  Tatera valida (Bocage, 1890) -- invalid -- Savanna Gerbil
  Taterillus Thomas, 1910 -- valid -- Small Naked-soled Gerbils
  Taterillus arenarius Robbins, 1974 -- valid -- Sahel gerbil, Robbins's Tateril
  Taterillus congicus Thomas, 1915 -- valid -- Congo gerbil, Congo Tateril
  Taterillus emini (Thomas, 1892) -- valid -- Emin's gerbil, Emin's Tateril
  Taterillus gracilis (Thomas, 1892) -- valid -- Slender Gerbil, Gracile Tateril
  Taterillus harringtoni (Thomas, 1906) -- valid -- Harrington's Gerbil, Harrington's Tateril
  Taterillus lacustris (Thomas and Wroughton, 1907) -- valid -- Lake Chad gerbil, Lake Chad Tateril
  Taterillus petteri Sicard, Tranier and Gautun, 1988 -- valid -- Petter's gerbil, Petter's Tateril
  Taterillus pygargus (F. Cuvier, 1838) -- valid -- Senegal gerbil, Senegal Tateril
  Taurotragus Wagner, 1855 -- valid -- elands
  Taurotragus derbianus (Gray, 1847) -- valid -- giant eland, Derby Eland
  Taurotragus oryx (Pallas, 1766) -- valid -- Common Eland, eland
  Taxidea Waterhouse, 1839 -- valid -- American badgers
  Taxidea taxus (Schreber, 1777) -- valid -- American Badger, Badger, Tlalcoyote
  Taxidiinae Pocock, 1920 -- valid -- American badgers
  Tayassu G. Fischer [von Waldheim], 1814 -- valid -- peccaries
  Tayassu pecari (Link, 1795) -- valid -- Pecari labios blancos, white-lipped peccary, White-lipped Peccary
  Tayassu tajacu (Linnaeus, 1758) -- invalid -- collared peccary, Pecari de collar
  Tayassuidae Palmer, 1897 -- valid -- peccaries
  Tenrec Lacépède, 1799 -- valid
  Tenrec ecaudatus (Schreber, 1778) -- valid -- Tail-less Tenrec, tailess tenrec, Tailless Tenrec
  Tenrecidae Gray, 1821 -- valid
  Tenrecinae Gray, 1821 -- valid -- spiny tenrecs
  Tetracerus Leach, 1825 -- valid
  Tetracerus quadricornis (Blainville, 1816) -- valid -- four-horned antelope, Four-horned Antelope
  Thallomys Thomas, 1920 -- valid -- Acacia Rats
  Thallomys loringi (Heller, 1909) -- valid -- Loring's Thallomys
  Thallomys nigricauda (Thomas, 1882) -- valid -- Black-tailed Thallomys
  Thallomys paedulcus (Sundevall, 1846) -- valid -- Acacia Thallomys
  Thallomys shortridgei Thomas and Hinton, 1923 -- valid -- Shortridge's Thallomys
  Thalpomys Thomas, 1916 -- valid -- Cerrado Mice
  Thalpomys cerradensis Hershkovitz, 1990 -- valid -- Cerrado mouse, Cerrado Akodont
  Thalpomys lasiotis Thomas, 1916 -- valid -- Hairy-eared Cerrado Mouse, Hairy-eared Akodont
  Thamnomys Thomas, 1907 -- valid -- Thicket Rats
  Thamnomys kempi Dollman, 1911 -- valid -- Dollman's Thamnomys
  Thamnomys venustus Thomas, 1907 -- valid -- Thomas's Thamnomys
  Thecurus Lyon, 1907 -- invalid
  Theropithecus I. Geoffroy Saint-Hilaire, 1843 -- valid -- Gelada
  Theropithecus gelada (Rüppell, 1835) -- valid -- Gelada
  Thomasomys Coues, 1884 -- valid -- Thomas's Oldfield Mice
  Thomasomys aureus (Tomes, 1860) -- valid -- Golden Oldfield Mouse, Golden Thomasomys
  Thomasomys baeops (Thomas, 1899) -- valid -- Beady-eyed Mouse, Short-faced Thomasomys
  Thomasomys bombycinus Anthony, 1925 -- valid -- Silky Oldfield Mouse, Silky Thomasomys
  Thomasomys cinereiventer J. A. Allen, 1912 -- valid -- Ashy-bellied Oldfield Mouse, Ashy-bellied Thomasomys
  Thomasomys cinereus (Thomas, 1882) -- valid -- Ash-colored Oldfield Mouse, Olive-gray Thomasomys
  Thomasomys daphne Thomas, 1917 -- valid -- Daphne's Oldfield Mouse, Daphne's Thomasomys
  Thomasomys eleusis Thomas, 1926 -- valid -- Peruvian Oldfield Mouse, Peruvian Thomasomys
  Thomasomys gracilis Thomas, 1917 -- valid -- Slender Oldfield Mouse, Gracile Thomasomys
  Thomasomys hylophilus Osgood, 1912 -- valid -- Woodland Oldfield Mouse, Woodland Thomasomys
  Thomasomys incanus (Thomas, 1894) -- valid -- Inca Oldfield Mouse, Black-eared Thomasomys
  Thomasomys ischyurus Osgood, 1914 -- invalid -- Strong-tailed Oldfield Mouse
  Thomasomys kalinowskii (Thomas, 1894) -- valid -- Kalinowski's Oldfield Mouse, Kalinowski's Thomasomys
  Thomasomys ladewi Anthony, 1926 -- valid -- Ladew's Oldfield Mouse, Ladew's Thomasomys
  Thomasomys laniger (Thomas, 1895) -- valid -- Butcher Oldfield Mouse, Soft-furred Thomasomys
  Thomasomys monochromos Bangs, 1900 -- valid -- Unicolored Oldfield Mouse, Unicolored Thomasomys
  Thomasomys niveipes (Thomas, 1896) -- valid -- Snow-footed Oldfield Mouse, White-footed Thomasomys
  Thomasomys notatus Thomas, 1917 -- valid -- Distinguished Oldfield Mouse, Dusky-footed Thomasomys
  Thomasomys oreas Anthony, 1926 -- valid -- Montane Oldfield Mouse, Montane Thomasomys
  Thomasomys paramorum Thomas, 1898 -- valid -- Paramo Oldfield Mouse, Páramo Thomasomys
  Thomasomys pyrrhonotus Thomas, 1886 -- valid -- Thomas's Oldfield Mouse, Reddish-backed Thomasomys
  Thomasomys rhoadsi Stone, 1914 -- valid -- Rhoads's Oldfield Mouse, Rhoads's Thomasomys
  Thomasomys rosalinda Thomas and St. Leger, 1926 -- valid -- Rosalinda's Oldfield Mouse, Rosalinda's Thomasomys
  Thomasomys silvestris Anthony, 1924 -- valid -- Forest Oldfield Mouse, Sylvan Thomasomys
  Thomasomys taczanowskii (Thomas, 1882) -- valid -- Taczanowski's Oldfield Mouse, Taczanowski's Thomasomys
  Thomasomys vestitus (Thomas, 1898) -- valid -- Dressy Oldfield Mouse, Mérida Thomasomys
  Thomomys Wied-Neuwied, 1839 -- valid -- Smooth-toothed Pocket Gophers, Western Pocket Gophers
  Thomomys bottae (Eydoux and Gervais, 1836) -- valid -- Tuza de Botta, Botta's Pocket Gopher
  Thomomys bulbivorus (Richardson, 1829) -- valid -- Camas Pocket Gopher
  Thomomys clusius Coues, 1875 -- valid -- Wyoming Pocket Gopher
  Thomomys idahoensis Merriam, 1901 -- valid -- Idaho Pocket Gopher
  Thomomys mazama Merriam, 1897 -- valid -- Western Pocket Gopher
  Thomomys monticola J. A. Allen, 1893 -- valid -- Mountain Pocket Gopher
  Thomomys talpoides (Richardson, 1828) -- valid -- Northern Pocket Gopher
  Thomomys townsendii (Bachman, 1839) -- valid -- Townsend's Pocket Gopher
  Thomomys umbrinus (Richardson, 1829) -- valid -- Tuza mexicana, Southern Pocket Gopher
  Thoopterus Matschie, 1899 -- valid
  Thoopterus nigrescens (Gray, 1870) -- valid -- Swift Fruit Bat, Common Swift Fruit Bat
  Thrichomys Trouessart, 1880 -- valid
  Thrichomys apereoides (Lund, 1839) -- valid -- Common Punaré, Lagoa Santa Punare
  Thryonomyidae Pocock, 1922 -- valid -- cane rats
  Thryonomys Fitzinger, 1867 -- valid
  Thryonomys gregorianus (Thomas, 1894) -- valid -- Lesser Cane Rat
  Thryonomys swinderianus (Temminck, 1827) -- valid -- Greater Cane Rat, Grass Cutter, Marsh Cane Rat
  Thylacinidae Bonaparte, 1838 -- valid
  Thylacinus Temminck, 1824 -- valid -- thylacine, Tasmanian wolf
  Thylacinus cynocephalus (Harris, 1808) -- valid -- Tasmanian wolf, Tasmanian tiger, Thylacine
  Thylamys Gray, 1843 -- valid
  Thylamys elegans (Waterhouse, 1839) -- valid -- Elegant Fat-tailed Mouse Opossum, Elegant Fat-tailed Opossum
  Thylamys macrura (Olfers, 1818) -- invalid
  Thylamys pallidior (Thomas, 1902) -- valid -- White-bellied Fat-tailed Mouse Opossum, Pallid Fat-tailed Opossum
  Thylamys pusilla (Desmarest, 1804) -- invalid
  Thylamys velutinus (Wagner, 1842) -- valid -- Dwarf Fat-tailed Mouse Opossum, Dwarf Fat-tailed Opossum
  Thylogale Gray, 1837 -- valid -- pademelons
  Thylogale billardierii (Desmarest, 1822) -- valid -- Tasmanian Pademelon, red-bellied pademelon, Rufous-bellied Pademelon
  Thylogale brunii (Schreber, 1778) -- valid -- Dusky Pademelon
  Thylogale stigmatica (Gould, 1860) -- valid -- Red-legged Pademelon
  Thylogale thetis (Lesson, 1828) -- valid -- Red-necked Pademelon
  Thyroptera Spix, 1823 -- valid -- disk-winged bats
  Thyroptera discifera (Lichtenstein and Peters, 1855) -- valid -- Peter's Disk-winged Bat, Peters's Disk-winged Bat
  Thyroptera tricolor Spix, 1823 -- valid -- Spix's Disk-winged Bat
  Thyropteridae Miller, 1907 -- valid -- disk-winged bats
  Tokudaia Kuroda, 1943 -- valid -- Ryukyu Spiny Rats
  Tokudaia muenninki (Johnson, 1946) -- valid -- Okinawa Island Spiny Rat
  Tokudaia osimensis (Abe, 1933) -- valid -- Amami-oshima Island Spiny Rat
  Tolypeutes Illiger, 1811 -- valid -- Three-banded Armadillos
  Tolypeutes matacus (Desmarest, 1804) -- valid -- Southern Three-banded Armadillo
  Tolypeutes tricinctus (Linnaeus, 1758) -- valid -- Brazilian Three-banded Armadillo
  Tomopeas Miller, 1900 -- valid
  Tomopeas ravus Miller, 1900 -- valid -- Blunt-eared Bat, Peruvian Crevice-dwelling Bat
  Tomopeatinae Miller, 1907 -- valid -- Blunt-eared Bat
  Tonatia Gray, 1827 -- valid -- round-eared bats
  Tonatia bidens (Spix, 1823) -- valid -- Greater Round-eared Bat
  Tonatia brasiliense (Peters, 1867) -- invalid -- Pygmy Round-eared Bat
  Tonatia carrikeri (J. A. Allen, 1910) -- invalid -- Carriker's Round-eared Bat
  Tonatia evotis Davis and Carter, 1978 -- invalid -- Davis's Round-eared Bat
  Tonatia schulzi Genoways and Williams, 1980 -- invalid
  Tonatia silvicola (d'Orbigny, 1836) -- invalid -- White-throated Round-eared Bat
  Trachops Gray, 1847 -- valid -- Fringe-lipped Bat
  Trachops cirrhosus (Spix, 1823) -- valid -- Fringe-lipped Bat
  Trachypithecus Reichenbach, 1862 -- valid -- lutungs
  Trachypithecus auratus (É. Geoffroy Saint-Hilaire, 1812) -- valid -- Javan langur, East Javan Langur, Javan Lutung
  Trachypithecus cristatus (Raffles, 1821) -- valid -- Silvered Leaf Monkey, Silvery Lutung, Silvered Langur
  Trachypithecus francoisi (de Pousargues, 1898) -- valid -- François' Leaf Monkey, Francois' Langur, François's Langur
  Trachypithecus geei Khajuria, 1956 -- valid -- Golden Leaf Monkey, Gee's Golden Langur, Golden Langur
  Trachypithecus johnii (J. Fischer, 1829) -- invalid
  Trachypithecus obscurus (Reid, 1837) -- valid -- Dusky Leaf-monkey, Dusky Langur
  Trachypithecus phayrei (Blyth, 1847) -- valid -- Phayre's Langur, Phayre's Leaf-monkey
  Trachypithecus pileatus (Blyth, 1843) -- valid -- Capped Leaf Monkey, Capped Langur
  Trachypithecus vetulus (Erxleben, 1777) -- invalid
  Tragelaphus Blainville, 1816 -- valid -- spiral-horned bovines
  Tragelaphus angasii Angas, 1849 -- valid -- Nyala, nyala
  Tragelaphus buxtoni (Lydekker, 1910) -- valid -- mountain nyala, Mountain Nyala
  Tragelaphus eurycerus (Ogilby, 1837) -- valid -- Bongo, bongo
  Tragelaphus imberbis (Blyth, 1869) -- valid -- lesser kudu, Lesser Kudu
  Tragelaphus scriptus (Pallas, 1766) -- valid -- Bushbuck, bushbuck
  Tragelaphus spekii Speke, 1863 -- valid -- sitatunga, Sitatunga
  Tragelaphus strepsiceros (Pallas, 1766) -- valid -- Greater Kudu, greater kudu
  Tragulidae Milne-Edwards, 1864 -- valid -- chevrotains
  Tragulus Pallas, 1779 -- invalid -- Asiatic mouse-deer
  Tragulus javanicus (Osbeck, 1765) -- valid -- Java Mouse-deer, lesser mouse-deer
  Tragulus napu (F. Cuvier, 1822) -- valid -- greater mouse-deer, Greater Mouse-deer
  Tremarctos Gervais, 1855 -- valid -- Andean Bear, Spectacled Bear
  Tremarctos ornatus (F. G. Cuvier, 1825) -- valid -- Spectacled Bear, Andean Bear
  Triaenops Dobson, 1871 -- valid
  Triaenops furculus Trouessart, 1906 -- invalid -- Trouessart's Trident Bat
  Triaenops persicus Dobson, 1871 -- valid -- Persian Trident Bat
  Trichechidae Gill, 1872 -- valid -- manatees
  Trichechus Linnaeus, 1758 -- valid -- manatees
  Trichechus inunguis (Natterer, 1883) -- valid -- Amazonian Manatee, Amazon manatee
  Trichechus manatus Linnaeus, 1758 -- valid -- West Indian Manatee, manatee, Manatí del Caribe, Caribbean manatee
  Trichechus senegalensis Link, 1795 -- valid -- African Manatee, West African Manatee
  Trichosurus Lesson, 1828 -- valid -- brush-tailed possums
  Trichosurus arnhemensis Collett, 1897 -- invalid -- Northern Brushtail
  Trichosurus caninus (Ogilby, 1835) -- valid -- Short-eared Possum, Short-eared Brush-tailed Possum
  Trichosurus vulpecula (Kerr, 1792) -- valid -- Common Brushtail, Common Brush-tailed Possum
  Trichys Günther, 1877 -- valid
  Trichys fasciculata (Shaw, 1801) -- valid -- Long-tailed Porcupine, Asian Long-tailed Porcupine
  Trinycteris nicefori (Sanborn, 1949) -- valid -- Niceforo's Bat, Niceforo's Big-eared Bat
  Trogopterus Heude, 1898 -- valid
  Trogopterus xanthipes (Milne-Edwards, 1867) -- valid -- Complex-Toothed Flying Squirrel
  Tryphomys Miller, 1910 -- valid
  Tryphomys adustus Miller, 1910 -- valid -- Luzon Tryphomys
  Tscherskia Ognev, 1914 -- valid
  Tscherskia triton (de Winton, 1899) -- valid -- Greater Long-tailed Hamster
  Tubulidentata Huxley, 1872 -- valid -- aardvarks
  Tupaia Raffles, 1821 -- valid -- Tree Shrews
  Tupaia belangeri (Wagner, 1841) -- valid -- Northern Treeshrew, Northern Tree Shrew
  Tupaia chrysogaster Miller, 1903 -- valid -- Golden-bellied Tree Shrew, Golden-bellied Treeshrew
  Tupaia dorsalis Schlegel, 1857 -- valid -- Striped Tree Shrew, Striped Treeshrew
  Tupaia glis (Diard, 1820) -- valid -- Common Tree Shrew, Common Treeshrew
  Tupaia gracilis Thomas, 1893 -- valid -- Slender Tree Shrew, Slender Treeshrew
  Tupaia javanica Horsfield, 1822 -- valid -- Javan Tree Shrew, Horsfield's Treeshrew
  Tupaia longipes Thomas, 1893 -- valid -- Long-footed Tree Shrew, Long-footed Treeshrew
  Tupaia minor Günther, 1876 -- valid -- Pygmy Treeshrew, Pygmy Tree Shrew, Lesser Treeshrew
  Tupaia montana Thomas, 1892 -- valid -- Mountain Tree Shrew, Mountain Treeshrew
  Tupaia nicobarica (Zelebor, 1869) -- valid -- Nicobar Treeshrew, Nicobar Tree Shrew
  Tupaia palawanensis Thomas, 1894 -- valid -- Palawan Tree Shrew, Palawan Treeshrew
  Tupaia picta Thomas, 1892 -- valid -- Painted Treeshrew, Painted Tree Shrew
  Tupaia splendidula Gray, 1865 -- valid -- Ruddy Tree Shrew, Ruddy Treeshrew, Splendid Treeshrew
  Tupaia tana Raffles, 1821 -- valid -- Large Tree Shrew, Large Treeshrew
  Tupaiidae Gray, 1825 -- valid -- treeshrews
  Tupaiinae Gray, 1825 -- invalid
  Tursiops Gervais, 1855 -- valid -- bottlenose dolphins
  Tursiops aduncus (Ehrenberg, 1833) -- valid -- Indo-Pacific Bottlenose Dolphin, Indian Ocean bottlenose dolphin, Red Sea bottlenose dolphin
  Tursiops gillii Dall, 1873 -- invalid
  Tursiops truncatus (Montagu, 1821) -- valid -- Bottlenose Dolphin, Bottlenosed Dolphin, Delfín tonina, common bottlenose dolphin
  Tursiops truncatus truncatus (Montagu, 1821) -- valid -- Bottlenose Dolphin, common bottlenose dolphin
  Tylomys Peters, 1866 -- valid -- Naked-tailed Climbing Rats, Climbing Rats
  Tylomys bullaris Merriam, 1901 -- valid -- Chiapan Climbing Rat
  Tylomys fulviventer Anthony, 1916 -- valid -- Fulvous-bellied Climbing Rat
  Tylomys mirae Thomas, 1899 -- valid -- Mira Climbing Rat
  Tylomys nudicaudus (Peters, 1866) -- valid -- Peters's climbing rat, Peter's Climbing Rat
  Tylomys panamensis (Gray, 1873) -- valid -- Panamanian climbing rat, Panamá Climbing Rat
  Tylomys tumbalensis Merriam, 1901 -- valid -- Tumbala climbing rat, Tumbalá Climbing Rat
  Tylomys watsoni Thomas, 1899 -- valid -- Watson's Climbing Rat
  Tylonycteris Peters, 1872 -- valid
  Tylonycteris pachypus (Temminck, 1840) -- valid -- Lesser Bamboo Bat, Sunda Lesser Bamboo Bat, Club-footed Bat, Flat-headed Bat, Lesser Flat-headed Bat
  Tylonycteris robustula Thomas, 1915 -- valid -- Greater Bamboo Bat, Sumatran Greater Bamboo Bat, Greater Flat-headed Bat
  Tympanoctomys Yepes, 1941 -- valid -- viscacha rats
  Tympanoctomys barrerae (Lawrence, 1941) -- valid -- Red Viscacha-rat, Red Viscacha Rat
  Typhlomys Milne-Edwards, 1877 -- valid -- Chinese Pygmy Dormice
  Typhlomys chapensis Osgood, 1932 -- invalid -- Chapa pygmy dormouse
  Typhlomys cinereus Milne-Edwards, 1877 -- valid -- Chinese pygmy dormouse, Soft-furred Tree Mouse
  Uncia Gray, 1854 -- invalid
  Uncia uncia (Schreber, 1775) -- invalid -- Snow leopard
  Uranomys Dollman, 1909 -- valid
  Uranomys ruddi Dollman, 1909 -- valid -- Rudd's Bristle-furred Rat
  Urocyon Baird, 1857 -- valid -- gray foxes
  Urocyon cinereoargenteus (Schreber, 1775) -- valid -- Northern Gray Fox, Gray Fox, Zorra gris, Common Gray Fox, renard gris
  Urocyon littoralis (Baird, 1858) -- valid -- Island Fox, Island Gray Fox, Channel Islands Gray Fox
  Uroderma Peters, 1866 -- valid -- tent-making bats
  Uroderma bilobatum Peters, 1866 -- valid -- Tent-making Bat, Common Tent-making Bat
  Uroderma magnirostrum Davis, 1968 -- valid -- Brown Tent-making Bat
  Urogale Mearns, 1905 -- invalid
  Urogale everetti (Thomas, 1892) -- invalid -- Mindanao Treeshrew, Mindanao Tree Shrew
  Uromys Peters, 1867 -- valid -- Giant Naked-tailed Rats
  Uromys anak Thomas, 1907 -- valid -- Black-tailed Uromys
  Uromys caudimaculatus (Krefft, 1867) -- valid -- Giant White-tailed Uromys
  Uromys hadrourus (Winter, 1984) -- valid -- Masked White-tailed Uromys
  Uromys imperator (Thomas, 1888) -- valid -- Emperor Uromys
  Uromys neobritanicus Tate and Archbold, 1935 -- invalid
  Uromys porculus Thomas, 1904 -- valid -- Guadalcanal Uromys
  Uromys rex (Thomas, 1888) -- valid -- King Uromys
  Uropsilinae Dobson, 1883 -- valid -- Chinese shrew moles
  Uropsilus A. Milne-Edwards, 1871 -- valid
  Uropsilus andersoni (Thomas, 1911) -- valid -- Anderson's Shrew Mole
  Uropsilus gracilis (Thomas, 1911) -- valid -- Gracile Shrew Mole
  Uropsilus investigator (Thomas, 1922) -- valid -- Inquisitive Shrew Mole
  Uropsilus soricipes A. Milne-Edwards, 1871 -- valid -- Chinese Shrew Mole
  Urotrichus Temminck, 1841 -- valid
  Urotrichus pilirostris (True, 1886) -- invalid -- True's Shrew Mole
  Urotrichus talpoides Temminck, 1841 -- valid -- Japanese Shrew Mole
  Ursidae G. Fischer von Waldheim, 1817 -- valid -- bears
  Ursinae G. Fischer von Waldheim, 1817 -- invalid
  Ursus Linnaeus, 1758 -- valid -- bears
  Ursus americanus Pallas, 1780 -- valid -- American Black Bear, black bear, Oso negro, ours noir
  Ursus americanus luteolus Griffith, 1821 -- valid -- Louisiana black bear
  Ursus arctos Linnaeus, 1758 -- valid -- Brown Bear, Grizzly Bear, Oso pardo
  Ursus arctos arctos Linnaeus, 1758 -- valid -- brown bear
  Ursus arctos horribilis Ord, 1815 -- valid -- brown bear, grizzly bear
  Ursus arctos isabellinus Horsfield, 1826 -- valid
  Ursus arctos nelsoni Merriam, 1914 -- invalid -- Mexican grizzly bear
  Ursus arctos pruinosus Blyth, 1854 -- valid -- brown bear
  Ursus luteolus Griffith, 1821 -- invalid
  Ursus maritimus Phipps, 1774 -- valid -- White Bear, Polar Bear, ours blanc
  Ursus thibetanus G.[Baron] Cuvier, 1823 -- valid -- Asiatic Black Bear, Asian Black Bear
  Ursus thibetanus gedrosianus Blanford, 1877 -- valid -- Baluchistan bear
  Ursus thibetanus thibetanus G.[Baron] Cuvier, 1823 -- valid
  Vampyressa Thomas, 1900 -- valid -- yellow-eared bats
  Vampyressa bidens (Dobson, 1878) -- invalid -- Bidentate Yellow-eared Bat
  Vampyressa brocki Peterson, 1968 -- invalid -- Brock's Yellow-eared Bat
  Vampyressa melissa Thomas, 1926 -- valid -- Melissa's Yellow-eared Bat
  Vampyressa nymphaea Thomas, 1909 -- invalid -- Striped Yellow-eared Bat
  Vampyressa pusilla (Wagner, 1843) -- valid -- Little Yellow-eared Bat, Southern Little Yellow-eared Bat
  Vampyrodes Thomas, 1900 -- valid -- stripe-faced bats
  Vampyrodes caraccioli (Thomas, 1889) -- valid -- Great Stripe-faced Bat, Caracciolo's Stripe-faced Bat
  Vampyrum Rafinesque, 1815 -- valid -- Spectral Bat
  Vampyrum spectrum (Linnaeus, 1758) -- valid -- Spectral Bat
  Vandeleuria Gray, 1842 -- valid -- Long-tailed Climbing Mice
  Vandeleuria nolthenii Phillips, 1929 -- valid -- Sri Lankan Vandeleuria
  Vandeleuria oleracea (Bennett, 1832) -- valid -- Indomalayan Vandeleuria, Palm Mouse, Indian Long-tailed Tree Mouse
  Varecia Gray, 1863 -- valid -- ruffed lemurs
  Varecia variegata (Kerr, 1792) -- valid -- Black-and-white Ruffed Lemur
  Vernaya Anthony, 1941 -- valid
  Vernaya fulva (G. M. Allen, 1927) -- valid -- Vernay's Climbing Mouse
  Vespadelus baverstocki (Kitchener, Jones and Caputi, 1987) -- valid -- Baverstock's Forest Bat, Inland Forest Bat
  Vespertilio Linnaeus, 1758 -- valid
  Vespertilio murinus Linnaeus, 1758 -- valid -- Particolored Bat, Eurasian Particolored Bat
  Vespertilio superans Thomas, 1899 -- invalid -- Asian particolored bat
  Vespertilionidae Gray, 1821 -- valid -- vesper bats, vespertilionid bats, evening bats
  Vespertilioninae Gray, 1821 -- valid
  Vicugna Lesson, 1842 -- valid
  Vicugna vicugna (Molina, 1782) -- valid -- vicugna, vicuna, vicuña, Vicugna
  Viverra Linnaeus, 1758 -- valid
  Viverra civettina Blyth, 1862 -- valid -- Malabar Civet, Malabar Large-spotted Civet
  Viverra megaspila Blyth, 1862 -- valid -- Large-spotted Civet
  Viverra tangalunga Gray, 1832 -- valid -- Malayan Civet, Malay Civet
  Viverra zibetha Linnaeus, 1758 -- valid -- Large Indian Civet
  Viverricula Hodgson, 1838 -- valid
  Viverricula indica (Desmarest, 1804) -- invalid
  Viverridae Gray, 1821 -- valid -- civets, genets, oyans
  Viverrinae Gray, 1821 -- valid -- terrestrial civets
  Volemys Zagorodnyuk, 1990 -- valid
  Volemys clarkei (Hinton, 1923) -- invalid -- Clarke's vole
  Volemys kikuchii (Kuroda, 1920) -- invalid -- Taiwan vole
  Volemys millicens (Thomas, 1911) -- valid -- Szechuan vole, Sichuan Vole, North Szechuan Vole
  Volemys musseri (Lawrence, 1982) -- valid -- Marie's Vole
  Vombatidae Burnett, 1829 -- valid -- wombats
  Vombatus É. Geoffroy Saint-Hilaire, 1803 -- valid -- common wombat, coarse-haired wombat
  Vombatus ursinus (Shaw, 1800) -- valid -- Common Wombat, coarse-haired wombat, Bare-nosed Wombat
  Vormela Blasius, 1884 -- valid -- Marbled Polecat
  Vormela peregusna (Güldenstädt, 1770) -- valid -- Marbled Polecat
  Vulpes Frisch, 1775 -- valid -- kit foxes, red foxes
  Vulpes bengalensis (Shaw, 1800) -- valid -- Bengal Fox, Indian Fox
  Vulpes cana Blanford, 1877 -- valid -- Blanford's Fox
  Vulpes chama (A. Smith, 1833) -- valid -- Cape Fox
  Vulpes corsac (Linnaeus, 1768) -- valid -- Corsac Fox
  Vulpes ferrilata Hodgson, 1842 -- valid -- Tibetan Fox, Tibetan Sand Fox
  Vulpes fulvus (Desmarest, 1820) -- invalid
  Vulpes macrotis Merriam, 1888 -- valid -- Desert Fox, Kit Fox
  Vulpes macrotis macrotis Merriam, 1888 -- valid
  Vulpes macrotis mutica Merriam, 1902 -- invalid -- San Joaquin kit fox
  Vulpes muticus Merriam, 1902 -- invalid
  Vulpes pallida (Cretzschmar, 1826) -- valid -- Pale Fox
  Vulpes rueppellii (Schinz, 1825) -- valid -- Rüppell's Fox
  Vulpes velox (Say, 1823) -- valid -- Swift Fox, Zorra desértica
  Vulpes velox mutica Merriam, 1902 -- invalid -- San Joaquin kit fox
  Vulpes vulpes (Linnaeus, 1758) -- valid -- Silver Fox, Cross Fox, Red Fox, renard roux
  Vulpes zerda (Zimmermann, 1780) -- valid -- Fennec, Fennec Fox
  Wallabia Trouessart, 1905 -- valid -- swamp wallaby
  Wallabia bicolor (Desmarest, 1804) -- valid -- Swamp Wallaby
  Wiedomys Hershkovitz, 1959 -- valid
  Wiedomys pyrrhorhinos (Wied-Neuwied, 1821) -- valid -- Red-nosed Mouse, Red-nosed Wiedomys
  Wilfredomys Avila-Pires, 1960 -- valid -- Wilfred's Mice
  Wilfredomys oenax (Thomas, 1928) -- valid -- Greater Wilfred's Mouse, Rufous-nosed Wilfredomys
  Wilfredomys pictipes (Osgood, 1933) -- invalid -- Lesser Wilfred's Mouse
  Wyulda Alexander, 1918 -- valid -- scaly-tailed possums
  Wyulda squamicaudata Alexander, 1918 -- valid -- Scaly-tailed Possum
  Xenarthra Cope, 1889 -- invalid -- preguiça, tamanduá, tatu, edentates
  Xenomys Merriam, 1892 -- valid -- Magdalena Rat
  Xenomys nelsoni Merriam, 1892 -- valid -- Magdalena Woodrat, Magdalena Rat
  Xenuromys Tate and Archbold, 1941 -- valid
  Xenuromys barbatus (Milne-Edwards, 1900) -- valid -- Rock-dwelling Giant Rat
  Xeromys Thomas, 1889 -- valid
  Xeromys myoides Thomas, 1889 -- valid -- False Water Rat
  Xerus Hemprich and Ehrenberg, 1833 -- valid -- African Ground Squirrels
  Xerus erythropus (É. Geoffroy Saint-Hilaire, 1803) -- valid -- Striped Ground Squirrel
  Xerus inauris (Zimmermann, 1780) -- valid -- South African Ground Squirrel
  Xerus princeps (Thomas, 1929) -- valid -- Damara Ground Squirrel
  Xerus rutilus (Cretzschmar, 1828) -- valid -- Unstriped Ground Squirrel
  Yarkea Lesson, 1840 -- invalid
  Zaedyus Ameghino, 1889 -- valid -- pichis
  Zaedyus pichiy (Desmarest, 1804) -- valid -- Pichi
  Zaglossus Gill, 1877 -- valid -- long-nosed echidna
  Zaglossus bruijni (Peters and Doria, 1876) -- valid -- long-beaked echidna, New Guinean echidna, Western Long-beaked Echidna
  Zalophus Gill, 1866 -- valid -- California sea lions
  Zalophus californianus (Lesson, 1828) -- valid -- California Sealion, Lobo-marino californiano, California sea lion
  Zapodidae Coues, 1875 -- invalid
  Zapodinae Coues, 1875 -- valid -- jumping mice
  Zapus Coues, 1875 -- valid -- Jumping Mice
  Zapus hudsonius (Zimmermann, 1780) -- valid -- souris sauteuse des champs, Meadow Jumping Mouse
  Zapus hudsonius luteus Miller, 1911 -- invalid -- New Mexican meadow jumping mouse
  Zapus princeps J. A. Allen, 1893 -- valid -- Western Jumping Mouse
  Zapus trinotatus Rhoads, 1895 -- valid -- Pacific Jumping Mouse
  Zelotomys Osgood, 1910 -- valid -- Broad-headed Mice
  Zelotomys hildegardeae (Thomas, 1902) -- valid -- Hildegarde's Zelotomys
  Zelotomys woosnami (Schwann, 1906) -- valid -- Woosnam's Zelotomys
  Zenkerella Matschie, 1898 -- valid
  Zenkerella insignis Matschie, 1898 -- valid -- Cameroon Scaly-tail
  Zenkerellinae Matschie, 1898 -- valid
  Ziphiidae Gray, 1850 -- invalid -- beaked whales
  Ziphius G. Cuvier, 1823 -- valid -- goose-beaked whales
  Ziphius cavirostris G. Cuvier, 1823 -- valid -- goose-beaked whale, Cuvier's Beaked Whale, goosebeak whale, Ballena-picuda de Couvier
  Zygodontomys J. A. Allen, 1897 -- valid -- Cane Mice
  Zygodontomys brevicauda (J. A. Allen and Chapman, 1893) -- valid -- Short-tailed Cane Mouse, Cane Rat, Short-tailed Zygodont
  Zygodontomys brunneus Thomas, 1898 -- valid -- Brown Cane Mouse, Brown Zygodont
  Zygogeomys Merriam, 1895 -- valid
  Zygogeomys trichopus Merriam, 1895 -- valid -- Michoacan Pocket Gopher
  Zyzomys Thomas, 1909 -- valid -- Australian Rock Rats
  Zyzomys argurus (Thomas, 1889) -- valid -- Common Australian Rock Rat
  Zyzomys maini Kitchener, 1989 -- valid -- Arnhem Land Rock Rat
  Zyzomys palatilis Kitchener, 1989 -- valid -- Carpentarian Rock Rat
  Zyzomys pedunculatus (Waite, 1896) -- valid -- Central Australian Rock Rat
  Zyzomys woodwardi (Thomas, 1909) -- valid -- Kimberley Rock Rat
   

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