Sigmodon ochrognathus Bailey, 1902 . Proc. Biol. Soc. Wash., 15: 115.

TYPE LOCALITY: U.S.A., Texas, Brewster Co., Chisos Mtns., 8000 ft. (2438 m) .

DISTRIBUTION: S.E. Arizona, S.W. New Mexico, and W. Texas (U.S.A.) to W. Coahuila and C. Durango (Mexico).

COMMENT: Reviewed by Baker and Shump, 1978, Mamm. Species, 97:1-2, Baker, 1969, Misc. Publ. Univ. Kans. Mus. Nat. Hist., 51:223-230, and Hall, 1981:744-745.

ISIS NUMBER: 5301410008054012001.