396 bulletin: museum of comparative zoology. 



'cotilla is on the border line between Cajamarea and Lambayeque. 

 Like Huaneabamba it is a tiiountain town on the western range of the 

 Andes. 



In the preparation of this paper we are greatly indebted, especially 

 in our study of the genera Phyllobates and Tehnatobius, to Dr. 

 Lettnhard Stejneger for the loan of a number of specimens; to Mr. 

 H. W. Fowler for a similar loan of Cope's types of Tdmatohiiis angus- 

 tipcs, T. pustulosus, and T. acmaricus; to Dr. G. A. Boulenger for his 

 unpublished notes on Phi/Ilobates pratti and to Dr. Louis Roule for a 

 sketch of the pectoral girdle of P. bicolor. 



Ranidae. 

 Phyllobates sylvatica, sp. nov. 



Diagnosis. Closely related to P. latinasus (Cope) from which it may be 

 distinguished by the following characters : — 



Tj^mpanum about one third instead of one half the diameter of the eye. 

 First finger a trifle shorter instead of a little longer than the second. Tibio- 

 tarsal articulation reaching to the middle of the eye, the anterior corner of the 

 eye, or slightly beyond instead of barely reaching the eye. Upper lip broadly 

 edged with white, posterior face of femur black reticulated with white, chest 

 and throat of young specimens washed with grey which may persist in the 

 adult ; — instead of upper lip narrowly edged with white, posterior face of 

 femur divided by a yellow line, ventral surface immaculate in both young 

 and adult. 



Range. The wet, forested subtropical highlands ("montaiia") 

 from Tabaconas to Charape in northwestern Peru. 



Type. M. C. Z. 5,344 from stream-bed at Tabaconas (near Huanea- 

 bamba) northwestern Peru; 1 September, 1916, G. K. Nol)le. 



Description of Type. Snout moderately prominent, as long as the diameter 

 of the orbit; loreal region vertical; nostril nearer the tip of the snout than the 

 e3^e; interorbital space a little broader than upper eyelid; tympanum half 

 concealed by a glandular fold, about one third the diameter of the eye; 

 discs well developed, smaller than tympanum ; two small metatarsal tubercles, 

 inner oval, outer rounded; a small oblique ridge in the middle of the inner 

 side of the tarsus; tibiotarsal articulation reaching to the middle of the eye. 

 Skin smooth, glandular on the sides. 



Uniform dark brown above; a black stripe extending entirely around the 

 body; the upper edge of this stripe, in the body region, bordered with yellow 



