Chaetodipus baileyi Merriam, 1894. Proc. Acad. Nat. Sci. Philadelphia, 46:262. TYPE LOCALITY: Mexico, Sonora, Magdalena. DISTRIBUTION: S California, S Arizona, SW New Mexico (USA), south to N Sinaloa and Baja California (Mexico). SYNONYMS: domensis Goldman, extimus Nelson and Goldman, fornicatus Burt, hueyi Nelson and Goldman, insularis Townsend, knekus Elliot, mesidios Huey, rudinoris Elliot. COMMENTS: Reviewed by Paulson (1988a, Mammalian Species, 297).Published as part of James L. Patton, 1993, Order Rodentia - Family Heteromyidae, pp. 477-486 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 483, DOI: 10.5281/zenodo.735307