Class Mammalia Linnaeus, 1758 - mammals
Order Rodentia Bowdich, 1821 - rodents
Suborder Sciurognathi (Tullberg, 1899)
see Suborder Sciuromorpha Brandt, 1855
Family Muridae Batsch, 1788 - rats, mice, hamsters, voles, lemmings, and gerbils
Subfamily Arvicolinae Gray, 1821 - voles
Genus Chionomys Miller, 1908
1 Chionomys gud Satunin, 1909
2 Chionomys nivalis (Martins, 1842) - snow vole
3 Chionomys roberti Thomas, 1906