Class [Mammalia] Linnaeus, 1758 - mammals
Count: [*] 21o;132f;1061g;4316s; ‡1f;5g;38s
Order Rodentia Bowdich, 1821 - rodents
Count: [*] 29f;399g;1788s; ‡1g;16s
Family Sciuridae Batsch, 1788 - squirrels, chipmunks, marmots, and prairie dogs
Count: [*] 49g;259s
Subfamily Sciurinae Batsch, 1788 - tree and ground squirrels
Count: [*] 35g;215s
Genus Sciurus Linnaeus, 1758 - tree squirrels
Count: [*] 27s
01 Sciurus aberti Woodhouse, 1853 - tassel-eared squirrel
Count: -
02 Sciurus aestuans Linnaeus, 1766
Count: -
03 Sciurus alleni Nelson, 1898 - Allen's squirrel
Count: -
04 Sciurus anomalus Schreber, 1785 - Persian squirrel
Count: -
05 Sciurus arizonensis Coues, 1867 - Arizona grey squirrel
Count: -
06 Sciurus aureogaster F. Cuvier, 1829 - Mexican grey squirrel
Count: -
07 Sciurus carolinensis Gmelin, 1788 - eastern grey squirrel
Count: -
08 Sciurus colliaei Richardson, 1839 - Collie's squirrel
Count: -
09 Sciurus deppei Peters, 1863 - Deppe's squirrel
Count: -
10 Sciurus flammifer Thomas, 1904
Count: -
11 Sciurus granatensis Humboldt, 1811 - tropical red squirrel
Count: -
12 Sciurus griseus Ord, 1818 - western grey squirrel
Count: -
13 Sciurus ignitus Gray, 1867
Count: -
14 Sciurus igniventris Wagner, 1842
Count: -
15 Sciurus lis Temminck, 1844 - Japanese squirrel
Count: -
16 Sciurus nayaritensis J.A. Allen, 1890 - Nayarit squirrel
Count: -
17 Sciurus niger Linnaeus, 1758 - eastern fox squirrel
Count: -
18 Sciurus oculatus Peters, 1863 - Peters' squirrel
Count: -
19 Sciurus pucheranii Fitzinger, 1867
Count: -
20 Sciurus pyrrhinus Thomas, 1898
Count: -
21 Sciurus richmondi Nelson, 1898 - Richmond's squirrel
Count: -
22 Sciurus sanborni Osgood, 1944
Count: -
23 Sciurus spadiceus Olfers, 1818
Count: -
24 Sciurus stramineus Eydoux & Souleyet, 1841
Count: -
25 Sciurus variegatoides Ogilby, 1839 - variegated squirrel
Count: -
26 Sciurus vulgaris Linnaeus, 1758 - Eurasian red squirrel
Count: -
27 Sciurus yucatanensis J. A. Allen, 1877 - Yucatan squirrel
Count: -