BATRACniA SALIKNTIA. 23 



10. LIMNOCHARIS. 



Tongue oval, entire, hinder edge free. Teeth ? Nose truncated. 



TjTnpanum conspicuous, circular. Skin all smooth. Fingers free. 

 Toes webbed at the base (Bell). 



Bell describes the dentition thus: "Palatine teeth in two small 

 groups, one in a Kne contiguous with the front margin of the inner 

 nostiils, and a second at some distance behind them, close within the 

 rise of the maxillary arch." As far as I can see, there were no 

 palatine teeth at all ; but if they are supj)osed to be lost, they must 

 have been implanted in a scries in front of the inner nostrils, much 

 interrupted in the middle. The second series is merely imaginaiy, 

 and nothing more than the sharp, quite smooth ridge of the os pa- 

 latinum. The snout tnmcated, produced beyond the mouth ; the 

 maxillary arch is angularly bent, so as to form a straight front 

 series of maxillary teeth. Otherwise the specimen is not in such 

 a condition as to allow me to give my own diagnosis of this 

 Batrachian. 



Limnocharis, Bell, Zool. of the Beagle, Rept. p. 32. 



1. Limnocharis fuscus. 



Bell, I. c. p. 33. t. 16. f, 3. 



Above dark brown; thighs lighter, obscurely banded with dark 

 brown ; beneath pale bluish grey ; the throat dotted with brown, 



a. Veiy bad state. Eio Janeiro. Presented by Charles Darwin, Esq, 



11. HYLORHINA. 



Habit stout ; head short, thick, broad ; extremities moderate ; 

 fingers very long, quite free ; toes rather long, slightly webbed at 

 the base, fxinged ; metatarsus with one blunt tubercle. Skin with 

 small flat warts : no lumbar gland. Vomerine teeth in one straight, 

 imintcrrupted series. Tongue circular, free and entire behind ; 

 eustachian tubes moderate ; tympanum not very distinct. Sacral 

 vertebra not dilated. Cliili. 



Hylorhina, Bell, Zool. of the Beagle, Rept. p, 44. 



1, Hylorhiaa silvatica, 

 Hylorhina sylvatica, Bell, I. c, pi. 19. f. 1. 

 Brown, beneath dii"ty whitish. 

 a. Adult female. Chiloc. Presented by Charles Darwin, Esq. 



