Onychomys arenicola Mearns, 1896. Preliminary diagnosis of new mammals from the Mexican border of the United States, p. 3 (preprint of Proc. U.S. Natl. Mus., 19: 137 — 140). TYPE LOCALITY: U.S.A., Texas, El Paso Co., 6 mi. (9.7 km) above El Paso. DISTRIBUTION: C. and S.W. New Mexico and extreme W. Texas (U.S.A.); N.W. Chihuahua and N.E. Sonora (Mexico); perhaps S.E. New Mexico, W. Texas, and C. Mexico. COMMENT: Formerly included in torridus; considered a distinct species by Hinesley, 1979, J. Mammal., 60:117- 128, and Baker et al., 1979, J. Mammal., 60:297-306; reviewed by Hall, 1981: 1180.Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Rodentia (Part 3), pp. 392-476 in Mammal Species of the Worl...