Neotoma cinerea (Ord, 1815) . In Guthrie, New Geogr., Hist., Commi., Grammar, Philadelphia, 2nd ed„ 2:292.

TYPE LOCALITY: USA, Montana, Cascade Co., Great Falls .

DISTRIBUTION: SE Yukon and westernmost Northwest Territories, south through British Columbia and W Alberta, Canada, to NW USA, as far south as N New Mexico and Arizona and east to W Dakotas.

SYNONYMS: acraia, alticola, apicalis, arizonae, cinnamomea, Columbiana, drummondii, fusca, grangeri, lucida, macrodon, occidentalis, orolestes, pulla, rupicola, saxamans .

COMMENTS: Subgenus Teonoma . Independent evidence for sister-species relationship to N. fuscipes (Carleton, 1980; Koop et al., 1985) supports synonymy of Homodontomys under subgenus Teonoma, not subgenus Neotoma as enacted by Burt and Barkalow (1942).