Sigmodon fulviventer J. A. Allen, 1889 . Bull. Am. Mus. Nat. Hist., 2: 180.

TYPE LOCALITY: Mexico, Zacatecas, Zacatecas .

DISTRIBUTION: Guanajuato and Michoacan (Mexico) to S.W. and C. New Mexico and S. E. Arizona (U.S.A.).

COMMENT: Includes melanotis and minimus; see review by Baker and Shump, 1978, Mamm. Species, 94:1-4, Hall, 1981:742, and Baker, 1969, Misc. Publ. Univ. Kans. Mus. Nat. Hist., 51: 196 -213.

ISIS NUMBER: 5301410008054004001 as S. fulviventer .

5301410008054010001 as S. melanotis .

5301410008054011001 as S. minimus.