Vol. 5, p. 385-401. August 18, 1931. 



Occasional Papers 



OF THE 



Boston Society of Natural History. 



NEW FROGS FROM PANAMA AND COSTA RICA. 1 

 BY EMMETT R. DUNN. 



During the course of various excursions into Central America 

 under the auspices of the Museum of Comparative Zoology, and 

 of a tour of European museums under the auspices of the John 

 Simon Guggenheim Memorial Fellowship, I have gradually 

 become aware of certain frogs from that region as yet undescribed. 

 I hereinafter offer descriptions of them, together with a few 

 remarks as to their nearest relatives. The material is largely 

 in my own collections, or in those of the Museum of Comparative 

 Zoology (in the main collected by myself), or the United States 

 National Museum. Any types now in my own collection will 

 be deposited in the Museum of Comparative Zoology, as a 

 return for the many favors I have enjoyed from the hands of 

 its Director, Dr. Thomas Barbour. 



Eleutherodactylus talamancae, sp. nov. 



Type. — M. G. Z. no. 9879, collected by E. R. Dunn and Chester Duryea 

 in 1923. 



Type locality. — Almirante, Bocas del Toro, Panama. 



Range. — Known from Monteverde, Zent, and Suretka, Costa Rica; Almi- 

 rante and La Loma, western Panama. 



Diagnosis. — An Eleutherodactylus of the JUzingeri-longiroslris group, with 

 smooth belly, webbed toes, slightly developed disks except on outer two 

 fingers, very long snout, uniform thigh color, slight web on toes, large disks 

 on outer fingers, no light throat stripe, very long legs, young with white upper 

 lip and oblique lateral bars. 



Description. — Type: head a pointed oval, flat above; snout flat and broad; 

 eye about equal to its distance from nostril; upper eyelid less than interorbital 

 width; distance from nostril to snout 2}4 times in distance from nostril to 

 eye; canthus rostralis well marked, rounded; loreal region sloping, concave; 

 tympanum }-•> eye; heel well beyond snout; very large disks on two outer 

 fingers, other digital disks medium; toes webbed at base, web extending to 



1 Contributions from the Department of Biology, Havcrford College no. 5. 



385 



