A New Pocket Gopher (Genus Thomomys) From Wyoming and Colorado

A short museum publication presents and names a previously unrecognized subspecies of pocket gopher from the Sierra Madre Range of southern Wyoming and northern Colorado. The author gives the type specimen and range, provides a formal diagnosis highlighting relatively small size, darker pelage, and a narrower, more slender skull with short nasals and reduced bullae, and contrasts these characters with neighboring subspecies. The note includes comparative remarks, average measurements from multiple specimens, a list of collecting localities, and acknowledgments of field assistance and museum deposition.