B. OPISTHOGLOSSA. 



Batrachia Salientia sen Anoura with a tongue, adherent in 

 front and more or less free behind. 



First Series. OPISTHOGLOSSA OXYDACTYLA. 



Opisthoglossa with tapering or cylindrical fingers and toes. 



Section I. Ranina. 

 0. OXTDACTYLA with maxillary teeth and well-developed ear. 



Fam. 1. RANIDJS. 



Ranina -with webbed toes, cyKndrical processes of sacral vertebra, 

 and without paratoids. 



Synopsis of the Genera. 



1. Pseudis. First finger opposite to the three others. South 



America. 



2. Oxyglossus. Toes entirely webbed ; vomerine teeth none. East 



Indies. 



3. Tomoptema. Toes half- webbed ; a flat sharp-edged spur on the 



metatarsus ; lower jaw with two bony prominences. South 

 Africa. 



4. Rana. No finger opposite to the others ; one or two blunt 



tubercles on the metatarsus ; crown covered with a soft skin ; 

 tongue deeply nicked behind ; vomerine teeth. Cosmopolitan. 



5. Sphaerotheca. Head -with swollen spherical occiput ; toes half- 



webbed; a flat sharp-edged spur on the metatarsus. East 

 Indies. 



6. Calyptocephalus. Crown with a rugose shield ; vomerine teeth 



in a straight line, in the middle interrupted. Chili. 



7. Cyclorhamphus. Toes half- webbed ; vomerine teeth in two 



groups ; tongue entire behind. Chili. 



8. Pithecopsis. A large gland on each side ; vomerine teeth in 



two oblique series ; tongue entire behind. Brazil. 



9. Leiuperus. Toes webbed only at the base ; skin granular ; no 



vomerine teeth. South America. 



10. Limnocharis. Toes webbed only at the base; skin smooth; 



no vomerine teeth. Brazil. 



