Spermophilus atricapillus VI. E. Bryant, 1889 . Proc. California Acad. Sci., ser. 2, 2:26.

TYPE LOCALITY: "Comondu, Lower California" [Baja California Sur, Mexico] .

DISTRIBUTION: Baja California (Mexico).

COMMENTS: Subgenus Otospermophilus (Hall, 1981:402) .