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 Microtus Schrank, 1798 - voles
           Microtus brandtii (Radde, 1861) - Brandt's vole see Microtus brandtii (Radde, 1861)