Sigmodon alleni Bailey, 1902 . Proc. Biol. Soc. Wash., 15:112.

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

DISTRIBUTION: S. Sinaloa to S. Oaxaca (Mexico).

COMMENT: Includes guerrerensis, macdougalli, macrodon, planifrons, setzeri, and vulcani; see review by Shump and Baker, 1978, Mamm. Species, 95:1, Baker, 1969, Misc. Publ. Univ. Kans. Mus. Nat. Hist., 51: 186-196, and Hall, 1981:743-744.

ISIS NUMBER: 5301410008054001001 as S. alleni .

5301410008054005001 as S. guerrerensis .

5301410008054008001 as S. macdougalli.

5301410008054009001 as S. macrodon .

5301410008054013001 as S. planifrons.

5301410008054014001 as S. vulcani .