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ENGYSTOMA .—Fitzinger. 



Genus Engystoma. — Characters. Head small, pointed; mouth minute; tongue 

 elongated, elliptical, movable only at its posterior extremity; tympanum concealed; 

 jaws and palate without teeth; males with a sub-gular vocal vesicle; body oval, 

 covered with a smooth skin; no parotid glands; anterior extremities with four 

 fingers, free; posterior short, with five toes, not palmated. 



ENGYSTOMA CAROLINENSE. 



Plate VI. 



Characters. Head small, short, pointed; body short, thick, nearly oval, 

 covered with a delicate skin; chestnut above, and thickly mottled with blackish 

 specks beneath. 



Synonyme. Engystoma Carolinense, Dumeril et Bibron, Hist. Nat. des Rept, torn. viii. 

 p. 743. 



Description. The general form of this animal approaches the oval; the skin 

 is smooth; the head remarkably small and short, though large for the genus; its 

 extent is marked by a delicate fold of the integuments behind the orbits; its 

 shape is triangular, the snout being very pointed; the upper jaw is dark brown, 

 the lower dark grey; the mouth is inferior and minute. 



The nostrils are very small, lateral, and placed near the snout. The eyes are 



