Produced by Chris Curnow, Joseph Cooper and the Online Distributed Proofreading Team at https://www.pgdp.net 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