Onychomys torridus (Coues, 1874) . Proc. Acad. Nat. Sci. Phila., 26: 183.

TYPE LOCALITY: U.S.A., Arizona, Graham Co., Camp Grant .

DISTRIBUTION: C. California, S. Nevada, and S.W. Utah to W. Texas (U.S.A.), N. Baja California, and San Luis Potosi (Mexico).

COMMENT: Partially reviewed by Matson and Friesen, 1978, Bull. South. Calif. Acad. Sci., 77(3): 116- 123. Reviewed by McCarty, 1975, Mamm. Species, 59:1-5. Formerly included arenicola; see Hinesley, 1979, J. Mammal., 60:117- 128; range will require adjustment if arenicola is found to occur in S. E. New Mexico, W. Texas (U.S.A.) and C. Mexico; see also comment under arenicola .

ISIS NUMBER: 5301410008034002001.