Produced by Chris Curnow, Joseph Cooper, Diane Monico, and the Online Distributed Proofreading Team at https://www.pgdp.net UNIVERSITY OF KANSAS PUBLICATIONS MUSEUM OF NATURAL HISTORY Volume 9, No. 11, pp. 357-361 January 21, 1957 A New Species of Pocket Gopher (Genus Pappogeomys) From Jalisco, México BY ROBERT J. RUSSELL UNIVERSITY OF KANSAS LAWRENCE 1957 UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY Editors: E. Raymond Hall, Chairman, Henry S. Fitch, Harrison B. Tordoff Volume 9, No. 11, pp. 357-361 Published January 21, 1957 UNIVERSITY OF KANSAS Lawrence, Kansas PRINTED BY FERD VOILAND, JR., STATE PRINTER TOPEKA, KANSAS 1957 26-5801 A New Species of Pocket Gopher (Genus Pappogeomys) From Jalisco, México BY ROBERT J. RUSSELL J. R. Alcorn collected a number of pocket gophers of the genus _Pappogeomys_ in the states of Jalisco, Nayarit, and Colima. The bulk of this material was obtained in 1949 and 1950. Full treatment of these interesting pocket gophers will be given by the author in a future publication. Among the _Pappogeomys_ collected by Alcorn were three specimens from the high Sierra del Tigre, an isolated range not previously sampled for pocket gophers. The Sierra del Tigre is situated in southern Jalisco and western Michoacán, and, like most of the mountainous terrain in this region of México, is volcanic in origin. To the south the Sierra del Tigre descends abruptly to lower elevations of the arid coastal plains, uninhabited by gophers of this genus. The small pocket gopher occurring in the Sierra del Tigre seems to be an undescribed species of the genus _Pappogeomys_ which may be known as =Pappogeomys alcorni= new species _Type._--Adult female, skull and skin; No. 39806, University of Kansas, Museum of Natural History; 4 mi. W Mazamitla, 6600 ft., Jalisco, México; October 18, 1950; obtained by J. R. Alcorn, original number 12835. _Distribution._--Known only from the Sierra del Tigre, and probably occurs only at higher elevations within the geographic limits of this isolated range of mountains.