THE HERPETOLOGY OF HISPANIOLA 



23 



the dorsal surface and readily distinguishing the species from other 

 Dominican forms. 



"Type. — A.M.N.H. No. 11401; adult, d"; among stones in ravine 

 of mountain torrent, Lo Bracita, Prov. Pacificador [Dominican 

 Republic]; August 20, 1922; G. K. Noble. 



"Description of Type. — Tongue broader than long, emarginate 

 behind; vomerine teeth in two groups in contact and forming almost 

 a continuous series between the choanae on a level with their posterior 



Figure 6. — Hyla heilprini: a, Dorsum; b, venter; c, profile of head; d, inside of mouth. 

 A.M.N.H. No. 31307, paratype, from Lo Bracita, Dominican Republic. Three-fourths 

 natural size. 



margin; head much broader than long; nostrils near the end of the 

 snout, the distance from the extreme tip (midpoint) of snout to nostril 

 contained more than two times in the distance between nostril and 

 eye; snout rounded; interorbital width greater than the greatest 

 diameter of the eye ; no indication of ossification in the derm of head ; 

 canthus rostralis rounded, the loreal region sloping gradually; tym- 

 panum distinct, slightly more than half the greatest diameter of the 

 eye. Hind limb being adpressed, the tibio-tarsal articulation reaches 

 nearly to the nostril; digits with large discs, of the same diameter 

 as the tympanum; fingers two-thirds webbed, toes completely webbed 

 (but the web does not reach the disc of the fourth toe); a large, 



