1913.] NATURAL SCIENCES OF PHILADELPHIA. 165 



Phyllobates infraguttatus Boulenger. 



Two examples from Huigra in Chimbo, at 4,000 feet elevation, on 

 February 18, 1911. 



Twelve examples from camp at junction of Chiguancay and 

 Chanchan Rivers in March, 1911. 



Some of the above differ from Boulenger's figure in showing the 

 white spots of the lower region much larger or with the intervening 

 dark color quite narrow, producing a reticulated appearance. Some 

 also have a more or less large dark blotch at each side of the sternum. 

 Upper surfaces of hind legs in most all examples usually distinctly 

 cross-banded with darker. Possibly a few slight tubercles or granules 

 on the back may be due to preservation, or only variation. Most 

 are perfectly smooth. 



Six others, young with same data as last lot, show the bellj' and 

 lower surfaces more or less whitish, though usually with two dark 

 blotches on chest, one each side of median line. 



Mr. Rhoads says the adults were found with the tadpoles hanging^ 

 on their backs. These were apparently attached to the rugosities 

 or slight tubercles on the back, the tadpole hanging by means of its 

 mouth, with the appearance of holding on as if by a teat. The 

 tadpoles were always found attached with their tails drooping back- 

 ward, and six to ten were noticed^ on a single adult. In color the 

 tadpoles were leaden-black. The adults were quite noisy. 



Prostherapis whymperi Boulenger. 



One example 27 mm. long, on trip from Hacienda Gorzon to Mount 

 Pichincha, May 10, 1911. Color above blackish, finely spotted 

 with greenish-white and lateral stripe same color. Belly brassy- 

 brown and head and throat spots indistjnct. Found in a swamp. 



Hyloxalus huigrse sp. nov. PI. VIII, lower figure. 



Body depressed. Head moderate, depressed moderately. Snout 

 moderately depressed, rather angular as viewed from above, well 

 protruded beyond lower jaw. Eye large, about 1| in snout or equal 

 to space between front eye edge and nostril. Mouth large, rictus 

 extending back about opposite hind eye edge. Maxillary teeth 

 minute, mostly uniserial, each tooth simple, short and conic, and 

 mostly hidden by thin lip. Vomerine teeth absent. Tongue large, 

 ellipsoid, hind edge deeply emarginate, though rather evenly concave, 

 and hind third free. Internal nares moderate. External nares 

 small, mark inner third of antero-interorbital width. Canthus 

 rostralis scarcely distinct, and lores oblique. Interorbital flat. 

 Tympanum small, rounded, about one-third in eye length. 



