Produced by Chris Curnow, Joseph Cooper and the Online Distributed Proofreading Team at http://www.pgdp.net The Subspecies of the Mexican Red-bellied Squirrel, Sciurus aureogaster BY KEITH R. KELSON University of Kansas Publications Museum of Natural History Volume 5, No. 17, pp. 243-250 April 10, 1952 University of Kansas LAWRENCE 1952 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. 17, pp. 243-250 April 10, 1952 UNIVERSITY OF KANSAS Lawrence, Kansas PRINTED BY FERD VOILAND, JR., STATE PRINTER TOPEKA, KANSAS 1952 24-2174 The Subspecies of the Mexican Red-bellied Squirrel, _Sciurus aureogaster_ BY KEITH R. KELSON In his excellent taxonomic treatment of the tree squirrels of Mexico and Central America, Nelson (Proc. Washington Acad. Sci., 1:15-110, 2 pls., May 9, 1899) recognized three subspecies of red-bellied squirrels, _Sciurus aureogaster aureogaster_ F. Cuvier, _Sciurus aureogaster hypopyrrhus_ Wagler, and _Sciurus aureogaster frumentor_ Nelson. In his lists of specimens examined, Nelson (_op. cit._:42 and 44) assigned certain specimens from "mountains near Santo Domingo" and Guichicovi in Chiapas, and Catemaco in Veracruz, to _S. a. aureogaster_, and other specimens from the same localities to _S. a. hypopyrrhus_. I originally attempted to study (identify to subspecies) the series of animals from only three places, but it became evident that a more extensive study was indicated. The locality whence the holotype of _Sciurus aureogaster aureogaster_ was obtained is unknown. Because certain specimens from Altamira, Tamaulipas, closely resemble Cuvier's figure of the type, Nelson (_op. cit._:41) subsequently designated Altamira as the type locality. Miniatitlan, Veracruz, was designated by Nelson as the type locality of _S. a. hypopyrrhus_ because Wagler's description of the type of that subspecies fitted so well certain of Nelson's specimens from that place.