Sigmodon mascotensis J. A. Allen, 1897 . Bull. Am. Mus. Nat. Hist., 9:54.

TYPE LOCALITY: Mexico, Jalisco, Mascota, Mineral San Sebastian .

DISTRIBUTION: Oaxaca to Jalisco and probably S. Nayarit (Mexico).

COMMENT: Formerly included in hispidus; see Zimmerman, 1970, Publ. Mus. Mich. St. Univ. Biol. Ser., 4(9):389. Severinghaus and Hoffmeister, 1978, J. Mammal., 59:870, reported that specimens from S. Nayarit are probably mascotensis .