4. HTLA. 369 



equals the diameter of tlie latter ; loreal region oblique, concave ; 

 canthus rostralis strongly marked, with a slight point or ridge at a 

 small distance from the orbit ; crown concave in the adult ; inter- 

 orbital space much broader than the upper eyelid ; tympanum very 

 distinct, about two thirds the diameter of the eye. Fingers slightly 

 webbed ; no projecting rudiment of poUex ; toes two-thirds webbed ; 

 disks of fingers nearly as large as the tympanum, of toes smaller ; 

 subarticular tubercles well developed ; a slight fold along the inner 

 edge of the tarsus. The hind limb being carried forwards along 

 the body, the tibio-tarsal articu.]ation reaches between the eye and 

 the tip of the snout. Upper surfaces smooth or tubercular ; lower 

 surfaces granulate ; a fold above the tympanum. Greyish or olive 

 above, spotted or marked with darker ; hinder side of thighs reti- 

 culated with blackish ; beneath vftiitish. immaculate. Male with 

 two external vocal vesicles, each being situated near the angle of 

 the mouth ; during the breeding-season the inner side of the iirst 

 finger covered with blackish rugosities. Prom snout to vent 75 

 millim. 

 W. Indies. 



a-d. 5 & Lgr. Cuba. Zoological Society [P.], 



ej-h. 5 &hgr. Cuba. 



l-q. c? , hgr., & yg. S. Domingo, 



r. Skeleton. ? 



38. Hyla ovata. 



Trachycephalus dominicensis, part., Guntli. Cat. p. 118. 

 Trachycephalus ovatus, Cope, Proa. Ac. PhUad. 1863, p. 44. 



Tongue subcircular, entire or scarcely emarginate, and slightly 

 free behind. Tomerine teeth between the rather large choanse, in 

 two straight or slightly arched series. Head moderate, as long as 

 broad ; derm of head involved in the rugose cranial ossification ; 

 posterior outline of casque nearly straight ; snout rounded, once 

 and a half or once and one third as long as the diameter of the 

 orbit; the distance between the nostril and the eye equals the 

 diameter of the 4atter ; loreal region oUique, concave ; canthus 

 rostralis strongly marked ; crown concave in the adult ; interorhital 

 space much broader than the upper eyelid ; tympanum very distinct, 

 about two thirds the diameter of the eye. Three .outer fingers 

 nearly half webbed ; no projecting rudiment of pollex ; toes three- 

 fourths webbed ; disks of fingers as large as the tympanum, of toes 

 smaller ; subarticular tubercles well developed ; a slight fold along 

 the inner edge of the tarsus. The hind limb being carried forwards 

 along the body, the tibio-tarsal articulation reaches the front of the 

 eye, the tip of the snout, or between these two points. Upper 

 surfaces smooth or sparsely tuberculous ; beneath granulate ; a fold 

 above the tympanum. Brown above, variegated with darker; 

 beneath whitish, immaculate. From snout to vent 72 millim. 

 W. Indies. 



2b 



