Produced by Chris Curnow, Erica Pfister-Altschul, Joseph Cooper and the Online Distributed Proofreading Team at https://www.pgdp.net [Transcriber's Note: The following suspected errors are noted, but left as printed: Page 544, "I hestitate to refer" should be "I hesitate to refer" Page 541, "the town on Aramberri" should be "the town of Aramberri"] UNIVERSITY OF KANSAS PUBLICATIONS MUSEUM OF NATURAL HISTORY Volume 9, No. 21, pp. 539-548 January 14, 1960 Pleistocene Pocket Gophers From San Josecito Cave, Nuevo Leon, Mexico BY ROBERT J. RUSSELL UNIVERSITY OF KANSAS LAWRENCE 1960 UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY Editors: E. Raymond Hall, Chairman, Henry S. Fitch, Robert W. Wilson Volume 9, No. 21, pp. 539-548 Published January 14, 1960 UNIVERSITY OF KANSAS Lawrence, Kansas PRINTED IN THE STATE PRINTING PLANT TOPEKA, KANSAS 1960 [Illustration] 28-1562 Pleistocene Pocket Gophers From San Josecito Cave, Nuevo Leon, Mexico BY ROBERT J. RUSSELL Cueva de San Josecito in the province of Aramberri, near the town on Aramberri, Nuevo Leon, Mexico, is at an elevation of approximately 7400 feet above sea level on the east-facing slope of the Sierra Madre Occidental in a limestone scarp. The dominant vegetation about the cave is the decidedly boreal forest association of pine and live oak. Additional information concerning the cave is provided by Miller (1943:143-144). Animal remains recovered from San Josecito Cave are among the most important Pleistocene finds in Mexico, and include the most extensive collection of Pleistocene geomyids. The vertebrate remains are probably late Pleistocene in age; certainly they are post-Blancan, since the genera _Equus_, _Preptoceras_, _Smilodon_, and _Aenocyon_ (all Pleistocene genera) are present. According to Miller's (_loc. cit._:145) extensive report on the avifauna, the bird remains from the cave are a remarkable assemblage and beautifully preserved. Most of the mammalian remains have been studied in detail, and the results of these studies have been published in a number of papers each treating specific groups. These reports provide valuable information concerning the distribution of mammals in northeastern Mexico in the late Pleistocene, a knowledge of which is most important to an understanding of present patterns of distribution and evolution of Mexican mammals.