| The Chihuahuan Pocket Mouse differs only slightly in appearance from the Desert Pocket Mouse (Chaetodipus penicillatus) but there is little overlap in their geographic ranges. The Chihuahuan Pocket Mouse is a bit larger and lighter than its cousin and is found in the Chihuahua desert in southern New Mexico, western Texas, and parts of northeastern Mexico (Chihuahua, Coahuila de Zaragoza, Durango and Zacatecas). Genetic markers have provided the evidence that this is indeed a different species from C. penicillatus, its western cousin.
Also known as:
Eastern Desert Pocket Mouse
Mearns, E.A., 1898. Descriptions of three new forms of pocket mice from the Mexican border of the United States. Bulletin of the American Museum of Natural History, 10:299-302.
Mammal Species of the World
Mammalian Species, American Society of Mammalogists' species account