Lemmiscus curtatus (Cope, 1868) . Proc. Acad. Nat. Sci. Philadelphia, 20:2.

TYPE LOCALITY: USA, Nevada, Esmeralda Co., Mt. Magruder, Pigeon Spring .

DISTRIBUTION: Sagebrush steppe and desert from S Alberta and SE Saskatchewan, Canada, south to NW Colorado and EC California, including the Columbia Basin of interior Oregon and Washington, USA.

SYNONYMS: artemisiae, intermedius, levidensis, orbitus, pallidus, pauperrimus .

COMMENTS: See Carroll and Genoways, 1980 (Mammalian Species, 124, as Lagurus curtatus).