1913.] NATURAL SCIENCES OF PHILADELPHIA. 157 



Hyla chimboe sp. nov. PL VI, upper figure. 



Body broad, well depressed. Head broad, depressed, its wddth 

 about equals that of body, scarcely constricted. Snout rather 

 broadlj^ depressed, contour as viewed from above well convex. Ej^e 

 moderate, about equals snout length. jMouth large, rictus not quite 

 extending back opposite hind edge of eye. Lips rather thin. ^lax- 

 illary teeth uniserial, fine, uniform, concealed by lip. Vomerine 

 teeth in two series, each rather short, well behind, though would 

 fall partly within space between internal nares, and series approxi- 

 mated posteriorly. Tongue oval, large, last fourth free, and hind 

 edge rounded, not notched. Internal nares rather small. External 

 nares well separated, so they fall near outer fourth of antero-inter- 

 orbital width. Canthus rostralis not very distinct. Interorbital 

 slightly concave. Tympanum rather small, vertically ovoid, and 

 its length about y eye length. 



Skin very finely granular or nearly smooth largely above, and 

 entire lower surface more or less coarsely granular, though granules 

 on belly largest. 



Limbs all slender. Fingers with slight basal webs. First finger 

 longer than second, dilated basally or vrith adnate pollex, third 

 longest, and tips of all wdth well-developed rounded flattened disks, 

 each much less than tympanum. Toes slender, fourth much longest, 

 but moderately webbed basally or for less than half their extent, and 

 distal disks similar to those of fingers. No rudimentary hallux or 

 tarsal fold. 



Color in alcohol evidently uniform dusky above, pale brownish 

 in contrast below. Belly obscurely mottled with darker, and dark 

 mottlings also along edges of hind limbs. Limbs above like back, 

 below like general color of lower surface. 

 Length 37 mm. 



Type, No. 18,137, A. N. S. P. Mountains above Chimbo, 10,000 

 to 10,800 feet, Ecuador. April, 1911. S. N. Rhoads. 



Nos. 18,155 and 18,159, paratypes, same data. These 25 mm. 

 in length. 



This species is related to Hyla rubra Daudin, which differs in 

 having the toes three-fourths webbed, snout 1^ to If in length of eye, 

 a strong fold across the chest, and in having the vomerine teeth in 

 two small groups between the internal nares. 

 (Named for Chimbo, the type locality.) 



Hyla riobambae sp. nov. PI. VI, lower figure. 



Body broad, well depressed. Head broad, depressed, its width 



