Cynomys gunnisoni (Baird, 1855) . Proc. Acad. Nat. Sci. Philadelphia, 7:334.

TYPE LOCALITY: "Cochitope [Cochetopa] Pass of Rocky Mountains." [Saguache Co., Colorado, USA].

DISTRIBUTION: SE Utah, SW Colorado, NE Arizona, and NW New Mexico (USA).

SYNONYMS: zuniensis Hollister, 1916.

COMMENTS: Subgenus Leucocrossuromys (Hall, 1981) . Reviewed by Pizzimenti and Hoffmann (1973, Mammalian Species, 25) and Pizzimenti (1976).