Mustela nigripes (Audubon and Bachman, 1851) . The Viviparous Quadrupeds of North America, 2:297.

TYPE LOCALITY: U.S.A., Wyoming, Goshen Co., Fort Laramie .

DISTRIBUTION: Formerly, S. Alberta and Saskatchewan (Canada) south to Arizona, Oklahoma, and N.W. Texas (U.S.A.).

COMMENT: Reviewed by Hillman and Clark, 1980, Mamm. Species, 126:1-3.

PROTECTED STATUS: CITES - Appendix I and U.S. ESA - Endangered.

ISIS NUMBER: 5301412004007008001.