Produced by Chris Curnow, Joseph Cooper, Josephine Paolucci and the Online Distributed Proofreading Team at https://www.pgdp.net. UNIVERSITY OF KANSAS PUBLICATIONS MUSEUM OF NATURAL HISTORY Volume 15, No. 1, pp. 1-148, pls. 1-6, 11 figs. December 20, 1961 [Transcriber's Note: Words surrounded by cedillas, like ~this~ signifies words in bold. Words surrounded by underscores, like _this_, signifies words in italics.] The Amphibians and Reptiles of Michoacán, México BY WILLIAM E. DUELLMAN UNIVERSITY OF KANSAS LAWRENCE 1961 UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY Editors: E. Raymond Hall, Chairman, Henry S. Fitch, Theodore H. Eaton, Jr. Volume 15, No. 1, pp. 1-148, pls. 1-6, 11 figs. Published December 20, 1961 UNIVERSITY OF KANSAS Lawrence, Kansas PRINTED IN THE STATE PRINTING PLANT TOPEKA, KANSAS 1961 The Amphibians and Reptiles of Michoacán, México BY WILLIAM E. DUELLMAN CONTENTS PAGE INTRODUCTION 3 Acknowledgments 5 Historical Account 7 NATURAL LANDSCAPE 9 GEOGRAPHY OF THE HERPETOFAUNA 13 ANNOTATED LIST OF SPECIES 13 Amphibia 14 Caudata 14 Salientia 20 Reptilia 56 Testudines 56 Crocodilia 58 Sauria 59 Serpentes 88 SPECIES OF QUESTIONABLE OCCURRENCE 124 GAZETTEER 129 SUMMARY 141 LITERATURE CITED 142 INTRODUCTION For almost 30 years North American herpetologists have been making extensive collections of reptiles and amphibians in México. Some parts of the country, because of their accessibility, soon became relatively well known; other regions lying off the beaten path were bypassed or inadequately sampled. Principally in the last decade herpetologists have been entering regions from which no collections previously were available in an attempt to fill gaps in known distributions and to discover unknown species of animals. In 1950 Dr. Donald D. Brand led an exploration party from the University of Texas to the poorly explored and faunistically unknown region of southwestern Michoacán. James A. Peters accompanied Brand and collected amphibians and reptiles. In 1951 I welcomed the opportunity to accompany Brand on a second expedition to southwestern Michoacán. Such was the beginning of my interest in the herpetofauna of the region. I have been fortunate to return to Michoacán on four successive trips, all of which had as their purpose the accumulation of data on the herpetofauna that would result in a survey of the component species and an analysis of their distribution.