Class Mammalia Linnaeus, 1758 - mammals
Subclass Theria Parker & Haswell, 1897
Order Carnivora Bowdich, 1821 - carnivores
Suborder Caniformia Kretzoi, 1943
Family Mustelidae Batsch, 1788 - weasels, badgers, skunks, and otters
Subfamily Mustelinae Batsch, 1788 - weasels
Genus Mustela Linnaeus, 1758 - weasels, ermines, stoats, minks, ferrets, and polecats
Mustela erminea Linnaeus, 1758 - ermine
Mustela erminea stabilis Barrett-Hamilton, 1904