Spermophilus townsendii Bachman, 1839 . J. Acad. Nat. Sci. Phila., 8: 61.

TYPE LOCALITY: U.S.A., Washington, Walla Walla Co., near Wallula .

DISTRIBUTION: Great Basin region of E. Washington, Oregon, S. Idaho, E. California, Nevada, and W. Utah (U.S.A.).

COMMENT: Subgenus Spermophilus; see Hall, 1981:382. Includes several chromosomally different groups (mollis, vigilis) that may be distinct species; see Vorontsov and Lyapunova, 1970, Byull. Mosk. Ova. Ispyt. Prir. Otd. Biol., 75: 122-136.

ISIS NUMBER: 5301410002032026001.