Class Mammalia Linnaeus, 1758 - mammals Subclass Theria Parker & Haswell, 1897 Order Lagomorpha Brandt, 1855 - lagomorphs Family Leporidae Batsch, 1788 - hares and rabbits Genus Lepus Linnaeus, 1758 - hares Subgenus Lepus Linnaeus, 1758 Lepus arcticus Ross, 1819 - Arctic hare Lepus arcticus monstrabilis Nelson, 1934