Produced by Chris Curnow, Joseph Cooper, Diane Monico, and the Online Distributed Proofreading Team at https://www.pgdp.net Four New Pocket Gophers of the Genus Cratogeomys from Jalisco, Mexico BY ROBERT J. RUSSELL University of Kansas Publications Museum of Natural History Volume 5, No. 31, pp. 535-542 October 15, 1953 University of Kansas LAWRENCE 1953 UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY Editors: E. Raymond Hall, Chairman, A. Byron Leonard, and Robert W. Wilson Volume 5, No. 31, pp. 535-542 October 15, 1953 UNIVERSITY OF KANSAS Lawrence, Kansas PRINTED BY FERD VOILAND, JR., STATE PRINTER TOPEKA, KANSAS 1953 24-8662 Four New Pocket Gophers of the Genus Cratogeomys from Jalisco, Mexico By ROBERT J. RUSSELL In the course of my taxonomic study of the genus _Cratogeomys_, a high degree of variation was found between several populations of these gophers in central Jalisco. Two species, _C. gymnurus_ and _C. zinseri_, occur in this part of the state. Previously _C. gymnurus_ was known only from southern Jalisco and _C. zinseri_ only from extreme eastern Jalisco, but through the efforts of J. R. Alcorn specimens were obtained of both species in the central part of the state. These large gophers are difficult to collect, and I am grateful to him for securing this significant material. Costs of the field work were defrayed by the National Science Foundation and the Kansas University Endowment Association. Thanks are due also to those in charge of the United States Biological Surveys Collection for the loan of comparative material. Study of the recently acquired specimens taken in central Jalisco reveals two undescribed subspecies each of _C. gymnurus_ and _C. zinseri_. These may be known and described as =Cratogeomys gymnurus tellus= new subspecies _Type._--Female, adult, skull and skin, No. 33454 Mus. Nat. Hist., Univ. Kansas; from 3 mi. W Tala, 4300 ft., Jalisco, Mexico; obtained on June 2, 1949, by J. R. Alcorn, original No. 9376. _Range._--North-central Jalisco; known from several localities in the vicinity of Tala.