Species (261)
- Marmota marmota (Linnaeus, 1758)
- Aeretes melanopterus (Milne-Edwards, 1867)
- Aeromys thomasi (Hose, 1900)
- Ammospermophilus leucurus (Merriam, 1889)
- Belomys pearsoni (Gray, 1842)
- Callosciurus baluensis (Bonhote, 1901)
- Callosciurus notatus (Boddaert, 1785)
- Callosciurus flavimanus (I. Geoffroy, 1831)
- Callosciurus ferrugineus (F. Cuvier, 1829)
- Callosciurus prevosti (Desmarest, 1822)
- Cynomys leucurus Merriam, 1890
- Dremomys lokriah (Hodgson, 1836)
- Cynomys mexicanus Merriam, 1892
- Dremomys rufigenis (Blanford, 1878)
- Epixerus wilsoni Du Chaillu, 1860
- Exilisciurus samaricus (Thomas, 1897)
- Ammospermophilus insularis Nelson & Goldman, 1909
- Exilisciurus whiteheadi (Thomas, 1887)
- Exilisciurus luncefordi (Taylor, 1934)
- Funisciurus anerythrus (Thomas, 1890)
- Funisciurus pyrrhopus (F. Cuvier, 1833)
- Aeromys tephromelas (Gunther, 1873)
- Ammospermophilus harrisii (Audubon & Bachman, 1854)
- Ammospermophilus nelsoni (Merriam, 1893)
- Ammospermophilus interpres (Merriam, 1890)
- Atlantoxerus getulus (Linnaeus, 1758)
- Callosciurus albescens (Bonhote, 1901)
- Callosciurus adamsi (Kloss, 1921)
- Callosciurus erythraeus (Pallas, 1778)
- Callosciurus caniceps (Gray, 1842)
- Callosciurus finlaysoni (Horsfield, 1824)
- Callosciurus inornatus (Gray, 1867)
- Callosciurus phayrei (Blyth, 1855)
- Callosciurus melanogaster (Thomas, 1896)
- Callosciurus pygerythrus (I. Geoffroy, 1832)
- Callosciurus nigrovittatus (Horsfield, 1823)
- Cynomys gunnisoni (Baird, 1855)
- Callosciurus quinquestriatus (Anderson, 1871)
- Cynomys ludovicianus (Ord, 1815)
- Cynomys parvidens J.A. Allen, 1905
- Dremomys everetti (Thomas, 1890)
- Dremomys pernyi (Milne-Edwards, 1867)
- Dremomys pyrrhomerus (Thomas, 1895)
- Eupetaurus cinereus Thomas, 1888
- Epixerus ebii (Temminck, 1853)
- Funambulus palmarum (Linnaeus, 1766)
- Exilisciurus exilis (Muller, 1838)
- Funambulus pennanti Wroughton, 1905
- Funambulus tristriatus (Waterhouse, 1837)
- Funisciurus carruthersi Thomas, 1906
- Funisciurus leucogenys (Waterhouse, 1842)
- Glyphotes canalvus Moore, 1959
- Hylopetes electilis (G.M. Allen, 1925)
- Hylopetes phayrei (Blyth, 1859)
- Hylopetes lepidus (Horsfield, 1822)
- Hylopetes mindanensis (Rabor, 1939)
- Heliosciurus ruwenzorii (Schwann, 1904)
- Hylopetes sipora Chasen, 1940
- Lariscus hosei (Thomas, 1892)
- Hyosciurus heinrichi Tate & Archbol, 1935
- Lariscus insignis (F. Cuvier, 1821)
- Heliosciurus gambianus (Ogilby, 1835)
- Marmota baibacina Kastschenko, 1899
- Marmota caligata (Eschscholtz, 1829)
- Marmota broweri Hall & Gilmore, 1934
- Marmota caudata (Geoffroy, 1842)
- Marmota menzbieri (Kashkarov, 1925)
- Menetes berdmorei (Blyth, 1849)
- Microsciurus alfari (J.A. Allen, 1895)
- Microsciurus pumilio (Le Conte, 1857)
- Microsciurus santanderensis (Hernandez-Camacho, 1957)
- Paraxerus boehmi (Reichenow, 1886)
- Paraxerus alexandri (Thomas & Wroughton, 1907)
- Paraxerus cooperi Hayman, 1950
- Paraxerus flavivittis (Peters, 1852)
- Prosciurillus murinus (Forsten, 1844)
- Rheithrosciurus macrotis (Gray, 1857)
- Ratufa macroura (Pennant, 1769)
- Rubrisciurus rubriventer (Forsten, 1839)
- Sciurus aberti Woodhouse, 1853
- Sciurillus pusillus (Desmarest, 1817)
- Sciurus aestuans Linnaeus, 1766
- Sciurus anomalus Gmelin, 1778
- Sciurus aureogaster F. Cuvier, 1829
- Sciurus lis Temminck, 1844
- Sciurus niger Linnaeus, 1758
- Sciurus pucheranii (Fitzinger, 1867)
- Sciurus spadiceus Olfers, 1818
- Sciurus variegatoides Ogilby, 1839
- Sciurus pyrrhinus Thomas, 1898
- Spermophilopsis leptodactylus (Lichtenstein, 1823)
- Spermophilus adocetus (Merriam, 1903)
- Spermophilus annulatus Audubon & Bachman, 1842
- Spermophilus atricapillus W.E. Bryant, 1889
- Spermophilus beecheyi (Richardson, 1829)
- Spermophilus beldingi Merriam, 1888
- Spermophilus elegans Kennicott, 1863
- Spermophilus columbianus (Ord, 1815)
- Spermophilus erythrogenys Brandt, 1841
- Spermophilus mexicanus (Erxleben, 1777)