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
.1 Subgenus Grammogale Cabrera, 1940
.2 Subgenus Mustela Linnaeus, 1758
.3 Subgenus Gale Wagner, 1841
.4 Subgenus Putorius Cuvier, 1817
.5 Subgenus Cabreragale Baryshnikov & Abramov, 1997 [monotypic]
.6 Subgenus Kolonokus Satunin, 1911
.7 Subgenus Lutreola {Wagner, 1841}
.8 Subgenus Pocockictis Kretzoi, 1947 [monotypic]
.9 Subgenus Cryptomustela Abramov, 1999 [monotypic]
01 Mustela africana Desmarest, 1818 - Amazon weasel
02 Mustela altaica Pallas, 1811 - mountain weasel
03 Mustela erminea Linnaeus, 1758 - ermine
04 Mustela eversmanii Lesson, 1827 - steppe polecat
see Mustela eversmannii Lesson, 1827
05 Mustela felipei Izor & de la Torre, 1978 - Colombian weasel
06 Mustela frenata Lichtenstein, 1831 - long-tailed weasel
07 Mustela itatsi Temminck, 1844 - Japanese weasel
08 Mustela kathiah Hodgson, 1835 - yellow-bellied weasel
09 Mustela lutreola (Linnaeus, 1761) - European mink
10 Mustela lutreolina Robinson & Thomas, 1917 - Indonesian mountain weasel
11 Mustela nigripes (Audubon & Bachman, 1851) - black-footed ferret
12 Mustela nivalis Linnaeus, 1766 - least weasel
13 Mustela nudipes Desmarest, 1822 - Malayan weasel
14 Mustela putorius Linnaeus, 1758 - European polecat
15 Mustela sibirica Pallas, 1773 - Siberian weasel
16 Mustela strigidorsa Gray, 1853 - back-striped weasel
17 Mustela subpalmata Hemprich & Ehrenberg, 1833 - Egyptian weasel