Class [Mammalia] Linnaeus, 1758 - mammals
Order Rodentia Bowdich, 1821 - rodents
Family Muridae Batsch, 1788 - rats, mice, hamsters, voles, lemmings, and gerbils
Subfamily Arvicolinae Gray, 1821 - voles
Genus Pitymys McMurtrie, 1831 - pine voles
see Genus Microtus Schrank, 1798
Pitymys majori - Major's pine vole
see Microtus majori Thomas, 1906