10 B A T R A C H I A. • ' ' 



Fig. 27, exhibits the under surface of the same animal. 



Fig. 28, is a view of the head from above, showing the distance 

 between the eyes. 



Fig. 29, a profile of the head, showing the undulated cleft of the 

 mouth. 



Fig. 30, is a front view of the head. 



Fig. 31, the inferior floor of the mouth, showing the tongue. 



Fig. 32, the upper floor of the mouth, exhibiting the patches of 

 sphenoid teeth, the disposition of the vomero-palatine ones, and the 

 inner nostrils. 



Fig. 33, a somewhat magnified view of a fragment of skin, exhibit- 

 ing the granules it contains. Under a higher power, these granules 

 are irregularly star-like in shape. 



Genus HEREDIA, Girard. 



Car. gen. — Oajpite suhelUjyiico, et quam corpus ampliore; rostro ohtiteo, 

 rotundiformi, ultra maxillam inferiorem protrudente. Oris rictu 

 ohliquo, rectilineari. Dentibus maxillarihus miriufissimis, vixque 

 visibilihus. Dentibus vomero-iMlatinis in duplicem arcum acutum, 

 qui ex sphenoidalis extremitate anteriore per palaii marginem pos- 

 teriorem extendunt atque e narihus interiorihus aperturam angustam 

 efficiunt, dispositis. Dentibus sphenoidalibus in duas areas oblongas 

 ordi'natis. Lingua ampla, eUlptica, centrali quadam radice fixa, 

 teriiaque ejus parte posteriore libera rnanente. Oculis magnis. 

 Cruribus gracilibus, anterioribus longioribus ; digitis palmaruin 

 quatuor, plantarum quinque, omnibus disiinctis et attenuantibus. 

 Cauda subcylindrica, paulum compressa, in exiremiiaie gradatini 

 minuente. Cute externa Icevi et molli. 



Gen. Char. — Head, subelliptical, broader than the body. Snout, 

 blunt and rounded; protruding beyond the lower jaw. Cleft of 

 the mouth, oblique and rectilinear. Maxillary teeth exceedingly 

 minute, scarcely perceptible. Vomero-palatine teeth disposed upon 

 a double ogive, extending from the anterior extremity of the 

 sphenoid, along the posterior edge of the palatine floor, thus 

 making of the inner nostrils a circumscribed aperture. Sphenoid 

 teeth forming two elongated patches. Tongue large, elliptical. 



