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A New Pocket Gopher (Genus Thomomys), from Eastern

A New Pocket Gopher (Genus Thomomys) from Eastern Colorado

BY

E. RAYMOND HALL

University of Kansas Publications Museum of Natural History

Volume 5, No. 8, pp. 81-85 October 1, 1951

University of Kansas LAWRENCE 1951

UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY

Editors: E. Raymond Hall, Chairman, A. Byron Leonard, Edward H. Taylor, Robert W. Wilson

Volume 5, No. 8, pp. 81-85 October 1, 1951

UNIVERSITY OF KANSAS Lawrence, Kansas

PRINTED BY FERD VOILAND, JR., STATE PRINTER TOPEKA, KANSAS 1951

23-7439

A New Pocket Gopher (Genus Thomomys) from Eastern Colorado

By

E. RAYMOND HALL

The pocket gophers of the species _Thomomys talpoides_ in east-central Colorado have long been referred to the subspecies _Thomomys talpoides clusius_ Coues with type locality at Bridger Pass, Wyoming. Recently, two subspecies, _T. t. attenuatus_ and _T. t. rostralis_ (see Hall and Montague, Univ. Kansas Publ., Mus. Nat. Hist., 5(3):25-32, February 28, 1951) were named from along the Wyoming-Colorado boundary with the result that the populations of _Thomomys talpoides_ in east-central Colorado are separated from _T. t. clusius_ of Wyoming by the geographic ranges now ascribed to the recently named _T. t. attenuatus_ and _T. t. rostralis_. The subspecific identity of the animals from east-central Colorado thus is left in doubt. Examination of pertinent materials was made in the expectation that the names _Thomomys talpoides macrotis_ F. W. Miller (Proc. Colorado Mus. Nat. Hist., 9:41, December 14, 1930) and _Thomomys talpoides cheyennensis_ Swenk (Missouri Valley Fauna, 4:5, March 1, 1941) would apply to the specimens, the identity of which is in doubt. This examination discloses instead, as set forth in more detail below, that neither of the two names mentioned immediately above does apply; the Coloradan specimens in question are referable to an heretofore unrecognized subspecies which may be named and described as follows:


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