Number 151 July 1, 1924 



OCCASIONAL PAPERS OF THE MUSEUM OF 

 ZOOLOGY 



UNIVERSITY OF MICHIGAN 



Ann Arbor, Michigan Published by the University 



SOME PANAMANIAN FROGS^ 



By E. R. Dunn 



While Mr. C. B. Duryea and I were collecting for the Mu- 

 seum of Comparative Zoology in Panama and Costa Rica in 

 the summer of 1923 we were so fortunate as to observe the 

 eggs and tadpoles of two species of Hyla, and to collect and 

 make observations on the habits of four species of Phyllobates, 

 one of them new. The latter was also one of the species col- 

 lected by Mr. and Mrs. Gaige for the University of Michigan 

 in Panama in the spring of 1923. They worked from the 

 Pacific side and we from the Atlantic, but we both collected 

 in the cloud forest at about 4,500 feet altitude near the vol- 

 cano of Chiriqui and I am under obligations to them for their 

 courtesy in allowing me to examine their material and to de- 

 scribe the form. I have taken this opportunity to examine all 

 available specimens of Phyllobates from Panama and Costa 

 Rica. No species of this genus from Central America was 

 known to Barbour and Noble when they revised it (Bull. Mus. 

 Comp. Zool., LXIII, 8, 1920). 



^ Contributions from the Department of Zoology, Smith College, No. 

 120. 



