University of Kansas Publications
Museum of Natural History
Volume 15, No. 9, pp. 469-491, 4 figs.
March 2, 1964
A Review of the Frogs
Of the Hyla bistincta Group
BY
WILLIAM E. DUELLMAN
University of Kansas
Lawrence
1964
University of Kansas Publications, Museum of Natural History
Editors: E. Raymond Hall, Chairman, Henry S. Fitch,
Theodore H. Eaton, Jr.
Volume 15, No. 9, 469-491, 4 figs.
Published March 2, 1964
University of Kansas
Lawrence, Kansas
PRINTED BY THE STATE PRINTER
TOPEKA, KANSAS
1964
29-8590
A Review of the Frogs
Of the Hyla bistincta Group
BY
WILLIAM E. DUELLMAN
CONTENTS
PAGE
Introduction 471
Acknowledgments 471
The Hyla Bistincta Group 472
Analysis of Characters 473
Key to the Species of the Hyla Bistincta Group 474
Accounts of the Species 475
Hyla bistincta Cope 475
Hyla charadricola new species 478
Hyla robertsorum Taylor 481
Hyla pachyderma Taylor 485
Hyla crassa (Brocchi) 486
Relationships 489
Literature Cited 491
INTRODUCTION
In the mountainous regions of Middle America there are severalgroups of hylid frogs that inhabit mountain streams. Some of thesegroups, such as Plectrohyla and Ptychohyla, have been elevated togeneric rank, whereas others are retained in the large and complexgenus Hyla. In the mountains of México five spec