Order Rodentia - Family Sciuridae Author Robert S. Hoffmann Author Charles G. Anderson text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 419 465 book chapter http://doi.org/10.5281/zenodo.7353130 1-56098-217-9 7353130 Ammospermophilus interpres (Merriam, 1890) . N. Am. Fauna, 4:21 . TYPE LOCALITY: "El Paso, [El Paso Co.], Texas [ USA ]." DISTRIBUTION: New Mexico and W Texas ( USA ) to Coahuila , Chihuahua , and Durango ( Mexico ). COMMENTS: Most divergent species of the genus ( Bolles, 1981 ), and probable primitive sister-species to remainder (Hafner, 1981). Reviewed by Best et al. (1990b , Mammalian Species, 365).