Oreamnos americanus (de Blainville, 1816) . Bull. Sci. Soc. Philom. Paris, 1816:80.

TYPE LOCALITY: USA, Washington, Mt. Adams .

DISTRIBUTION: SE Alaska (USA), S Yukon and SW Mackenzie (Canada) to NC Oregon, C Idaho, and Montana (USA). Introduced to Kodiak, Chichagof, and Baranof Isis (Alaska), Olympic Peninsula (Washington), C Montana, Black Hills (South Dakota), and Colorado (USA).

SYNONYMS: columbiae, Columbiana, dorsata, kennedyi, lanigera, missoulae, montanus, sericea .

COMMENTS: Reviewed by Rideout and Hoffmann (1975, Mammalian Species, 63).