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A Distributional Study of the Amphibians of the Is

UNIVERSITY OF KANSAS PUBLICATIONS MUSEUM OF NATURAL HISTORY

Volume 13, No. 2, pp. 19-72, pls. 1-8, 3 figs.

August 16, 1960

A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico

BY WILLIAM E. DUELLMAN

UNIVERSITY OF KANSAS LAWRENCE 1960

UNIVERSITY OF KANSAS PUBLICATIONS MUSEUM OF NATURAL HISTORY

Volume 13, No. 2, pp. 19-72, pls. 1-8, 3 figs.

August 16, 1960

A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico

BY WILLIAM E. DUELLMAN

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 13, No. 2, pp. 19-72, pls. 1-8, 3 figs. Published August 16, 1960

UNIVERSITY OF KANSAS Lawrence, Kansas

PRINTED IN THE STATE PRINTING PLANT TOPEKA, KANSAS 1960

28-3859

A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico

BY

WILLIAM E. DUELLMAN

CONTENTS

PAGE INTRODUCTION 21 Acknowledgments 23 Field Studies in the Isthmus of Tehuantepec 23 Sources of Material 24

DESCRIPTION OF THE ISTHMUS OF TEHUANTEPEC 25 Physiography 25 Climate 28 Vegetation 29 The Sierra de los Tuxtlas 32

GAZETTEER 33

THE AMPHIBIAN FAUNA OF THE LOWLANDS 37 Composition of the Fauna 37 Ecology of the Fauna 38 Distribution of the Fauna 42

THE AMPHIBIAN FAUNA OF THE FOOTHILLS AND ADJACENT HIGHLANDS 44

ESTABLISHMENT OF PRESENT PATTERNS OF DISTRIBUTION 45

ACCOUNTS OF SPECIES 49

SUMMARY 68

LITERATURE CITED 69


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