102 REPTILES. 



12. Hyla boans. 



Hyla boans, Daud. Rain. p. 31. pi. 11, and Rept. viii. p. 64 ; Latr. 



Rept. ii. p. 184 ; Dum. ^ Bihr. p. 605 ; Burmeister, I. c. p. 108. 

 Aiiletris boans, Wagl. Sijd. p. 201. 

 H}-psiboas boans, Tsclmdi, Buti: p. 72. 



The thi-ee outer fingers very slightly webbed ; head elongate ; 

 snont tapering, but rounded in front ; tongue sHghtly notched behind. 

 A brown dorsal stripe and a brown band through the nostril, eye, 

 and tympanum ; brown cross- streaks on the back and legs. South 

 America. 



** Group with vomenne teeth, in two curved series, each forming an 

 arch, one beside the other, whose convexity is forward. ( .^v ,^n ) 



13. Hyla levaillantii. 



Dum. ^ Bibr. Erpetol. Gener. p. 550. 



Vomei-ine teeth between the hinder edges of the inner nostrils ; 

 tjTupanum two-thiixls the width of eye ; fingers very sUghtly webbed ; 

 above brownish. Surinam. 



14. Hyla lichenosa. (Plate YIII. fig. C.) 



Vomerine teeth on a level with the hinder edges of the inner 

 nostiils ; tympanum one-third the width of eye ; skin covered with 

 large flat warts ; fingers one-fourth webbed. 



a. Adult male. South America. From Mr. Bates's Collection. 



h. Adult male. Amazons. From Mr. Bates's Collection. 



c. Large female : not good state. America. From Mr. Mather's 



Collection. 

 d-fj. Half-grown and young. Vera Cniz. From Mr. Cuming's 



Collection. 

 7t. Half-grown. Cordova. From M. SaUe's Collection. 

 i, l\ Half-growTi and yoimg : not good state. Mexico. From M. 



Parzudaki's Collection. 



Description. — Habit moderately slender ; head broad, short, with 

 flat crown, short blunt muzzle, and rounded canthus rostralis ; eye 

 moderate ; tympanum small, circular, half-hidden by an overhanging 

 fold, about one-third the mdth of eye. Extremities moderate, with 

 well-developed subarticular tubercles and moderate disks; fingers 

 one-fourth webbed, toes webbed to the penultimate phalanx. Sldn of 

 the upper parts and of the sides covered with large round flat warts ; 

 a broad glandular fold above the tympanum. Tongue nearly cii'cular ; 

 inner nostrils and eustachian tubes moderate ; vomerine teeth in two 

 slightly arched seiies, scarcely internipted in the middle, on a level 

 with the hinder edge of the nostrils. In the Southern specimens the 



