Descriptions of Two Species of Frogs, Genus Ptychohyla / Studies of American Hylid Frogs, V

University of Kansas Publications Museum of Natural History Volume 13, No. 8, Pl. 25, figs. 1-2, pp. 349-357 April 27, 1961
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, Robert W. Wilson Volume 13, No. 8, Pl. 25, figs. 1-2, pp. 349-357 Published April 27, 1961 University of Kansas Lawrence, Kansas PRINTED IN THE STATE PRINTING PLANT TOPEKA, KANSAS 1961 28-6442

BY WILLIAM E. DUELLMAN
Field studies on hylid frogs in southern México and northern Central America have resulted in the collection of numerous specimens of Ptychohyla , a genus of hylid frogs heretofore poorly represented in museum collections. Experience with the living frogs in their natural habitats has been helpful in defining the species and in formulating ideas concerning their relationships.
Only the descriptions of the new species are given in this paper; detailed comparisons, descriptions of osteological features, analyses of calls, and discussions of relationships are reserved for a forthcoming review of the entire genus.
In the spring of 1959, collections of amphibians and reptiles were made in the cloud forests on the northern slopes of the Sierra Madre Oriental in northern Oaxaca. Among the hylids found, two specimens of a heretofore unnamed species of Ptychohyla have brilliant red flash-colors on the groin and thighs; in allusion to these fiery colors I propose that this species be named:
Holotype. —University of Michigan Museum of Zoology No. 119603, from a stream 6 kilometers south of Vista Hermosa, Oaxaca, México (1865 meters); obtained on March 31, 1959, by Thomas E. Moore. Original Number WED 14159.
Paratype. —UMMZ 119602 from Vista Hermosa, Oaxaca (1500 meters); obtained on March 30, 1959, by William E. Duellman.
Diagnosis. —A species of the schmidtorum -group of Ptychohyla differing from other known members of the group in having the diameter of the tympanum less than one-half the diameter of the eye, no white spot below the eye, no lateral light stripe, bright green dorsum in life and red flash-colors on groin and thighs.