Long-tailed Weasel - Subspecies

As of 2005, 42 subspecies are recognised.

Subspecies	Trinomial authority	Description	Range
Bridled weasel Mustela f. frenata (Nominate subspecies)	Lichtenstein, 1831	A large subspecies with a long tail, relatively short black tip and has a black head with conspicuous white markings	Mexico
Mustela f. affinis	Gray, 1874	A large, very dark subspecies with very little white marking on the face
Mustela f. agilis	Tschudi, 1844
Black Hills weasel Mustela f. alleni	Merriam, 1896	Similair to arizonensis in size and general characters, but with yellower upper parts	Black Hills, South Dakota
Mustela f. altifrontalis	Hall, 1936
Arizona weasel Mustela f. arizonensis	Mearns, 1891	Similair to longicauda, but smaller in size	Sierra Nevada and Rocky Mountain systems, reaching British Columbia in the Rocky Mountain region
Mustela f. arthuri	Hall, 1927
Mustela e. celenda	Hall, 1944
Mustela f. aureoventris	Gray, 1864
Mustela f. boliviensis	Hall, 1938
Mustela f. costaricensis	Goldman, 1912
Mustela f. effera	Hall, 1936
Chiapas weasel Mustela f. goldmani	Merriam, 1896	Similair to frenata in size and general characters, but with a longer tail and hind feet, darker fur and more restricted white markings	Mountains of southeastern Chiapas
Mustela f. gracilis	Brown, 1908
Mustela f. helleri	Hall, 1935
Mustela f. inyoensis	Hall, 1936
Mustela f. latirostra	Hall, 1896
Mustela f. leucoparia	Merriam, 1896	Similair to frenata, but slightly larger and with more extensive white markings
Common long-tailed weasel Mustela f. longicauda	Bonaparte, 1838	A large subspecies with a very long tail and short black tip. The upper parts are pale yellowish brown or pale raw amber brown, while the underparts vary in colour from strong buffy yellow to ochraceous orange	Great Plains from Kansas northward
Mustela f. macrophonius	Elliot, 1905
Mustela f. munda	Bangs, 1899
Mustela f. neomexicanus	Barber and Cockerell, 1898
Mustela f. nevadensis	Hall, 1936
Mustela f. nicaraguae	J. A. Allen, 1916
Mustela f. nigriauris	Hall, 1936
Mustela f. notius	Bangs, 1899
New York weasel Mustela f. noveboracensis	Emmons, 1840	A large subspecies, with a shorter tail than longicauda. The upper parts are rich, dark chocolate brown, while the underparts and upper lip are white and washed with yellowish.	Eastern United States from southern Maine to North Carolina and west to Illinois
Mustela f. occisor	Bangs, 1899
Mustela f. olivacea	Howell, 1913
Oregon weasel Mustela f. oregonensis	Merriam, 1896	Similair to xanthogenys, but larger, darker in colour and has more restricted facial markings	Rogue River Valley, Oregon
Mustela f. oribasus	Bangs, 1899
Mustela f. panamensis	Hall, 1932
Florida weasel Mustela f. peninsulae	Rhoads, 1894	Equal in size to noveboracensis, but with a skull more similair to that of longicauda. The upper parts are dull chocolate brown, while the underparts are yellowish	Florida Peninsula
Mustela f. perda	Merriam, 1902
Mustela f. perotae	Hall, 1936
Mustela f. primulina	Jackson, 1913
Mustela f. pulchra	Hall, 1936
Cascade Mountain weasel Mustela f. saturata	Merriam, 1896	Similair to arizonensis, but larger and darker, with an ochraceous belly and distinct spots behind the corners of the mouth
Mustela f. spadix	Bangs, 1896	Similair to longicauda, but much darker
Mustela f. texensis	Hall, 1936
Tropical weasel Mustela f. tropicalis	Merriam, 1896	Similair to frenata, but much smaller and darker, with less extensive white facial marking and an orange underbelly	Tropical coast belt of southern Mexico and Guatemala from Vera Cruz southward
Washington weasel Mustela f. washingtoni	Merriam, 1896	Similair to noveboracensis in size, but with a longer tail and shorter black tip	Washington state
California weasel Mustela f. xanthogenys	Gray, 1843	A medium sized subspecies with a long tail, a face marked with whitish and ochraceous underparts	Sonoran and Transition faunas of California, on both sides of Sierra Nevada

Read more about this topic: Long-tailed Weasel