Spermophilus annulatus Audubon and Bachman, 1842 . J. Acad. Nat. Sci. Phila., 8:319.

TYPE LOCALITY: Mexico, Colima, Manzanillo .

DISTRIBUTION: Nayarit to N. Guerrero (Mexico).

COMMENT: Subgenus Otospermophilus; see Hall, 1981:403. Gromov et al., 1965:145, considered Otospermophilus a distinct genus. Type locality designated by Howell, 1938, N. Am. Fauna, 56: 163.

ISIS NUMBER: 5301410002032002001.