Produced by Chris Curnow, Joseph Cooper, Diane Monico, and the Online Distributed Proofreading Team at https://www.pgdp.net Mammals from Tamaulipas, Mexico BY ROLLIN H. BAKER University of Kansas Publications Museum of Natural History Volume 5, No. 12, pp. 207-218 December 15, 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. 12, pp. 207-218 December 15, 1951 UNIVERSITY OF KANSAS Lawrence, Kansas PRINTED BY FERD VOILAND, JR., STATE PRINTER TOPEKA, KANSAS 1951 23-8338 Mammals from Tamaulipas, Mexico By ROLLIN H. BAKER Forming the northeastern border of Mexico, Tamaulipas extends in an elongated, north-south direction from the Temperate into the Torrid Zone and contains faunal elements from both the Nearctic and Neotropical regions. The mammals are less known than those from some of the bordering states; for the most part collecting has been limited to a few localities, chiefly along the Pan-American Highway. Accordingly, as a step towards a long-range study of the mammals of Tamaulipas, the Museum of Natural History of the University of Kansas acquired from William J. Schaldach, Jr., a small, but significant, collection of mammals taken in the last month of 1949 and the first four months of 1950. Collections were made at several places in the vicinity of Ciudad Victoria, including localities along the humid, eastern face of the Sierra Madre Oriental. Many of these specimens were obtained near camps made west of the village of El Carrizo. This small community is on the Pan-American highway, 70 kilometers (by highway) south of Ciudad Victoria. The resulting collections, which are reported upon here, disclose that several tropical mammals range farther northward than previously reported. Funds for financing the field work were made available by a grant from the Kansas University Endowment Association. ACCOUNTS OF SPECIES ~Didelphis mesamericana mesamericana~ Oken Central American Opossum _Did[elphys] mes-americana_ Oken, Lehrbuch d. Naturgesch., pt. 3, vol. 2:1152, 1816. (Type from Northern Mexico.) _Didelphis mes-americana_ Allen, Bull. Amer. Mus. Nat. Hist., 16:256, August 18, 1902. _Specimens examined_, 2 as follows: 36 km. N and 10 km. W Ciudad Victoria, 1 km. E El Barretal, on Rio Purificacion, 1; 12 km. N and 4 km. W Ciudad Victoria, 1. ~Philander opossum pallidus~ (Allen) Four-eyed Opossum _Metachirus fuscogriseus pallidus_ Allen, Bull. Amer. Mus. Nat. Hist., 14:215, July 3, 1901. (Type from Orizaba, Veracruz, Mexico.) _Philander opossum pallidus_ Dalquest, Occ. Papers Mus. Zool., Louisiana State Univ., No. 23:2, July 10, 1950. _Specimens examined_, 3 from 70 km. [by highway] S Ciudad Victoria and 2 km. W El Carrizo.