Pupil horizontal ; tongue deeply emarginate ; vomerine teeth ; lingers 

 free, toes free or slightly webbed ; outer metatarsals united or 

 separated by a groove : omosternum and sternum with a bony 

 style 6. Cornufer, p. 107. 



Pupil horizontal ; tongue deeply emarginate ; vomerine teeth none ; 

 toes webbed : outer metatarsals separated by web ; omosternum 

 and sternum with a bony style .. 7. Phrynobatraclius,p. 111. 



Pupil vertical ; tongue deeply emarginate ; vomerine teeth ; toes 

 webbed ; outer metatarsals separated by web ; omosternum and 

 sternum with a bony style • b. Nyctibatrachus, p. 113. 



Pupil vertical ; tongue rather deeply emarginate ; vomerine teeth ; 

 toes free ; outer metatarsals separated by a groove : omosternum 

 and sternum slender, cartilaginous. 8a. Nannobatraclius,p.470. 



Pupil horizontal ; tongue deeply emarginate ; vomerine teeth ; toes 

 free ; outer metatarsals united ; omosternum and sternum without 

 bony style 9. Nannophrys, p. 114. 



Pupil horizontal ; tongue heart-shaped ; vomerine teeth none ; fin- 

 gers free, toes nearly free; outer metatarsals united ; omosternum 

 and sternum with a bony style. . . 10. Arthroleptis, p. 116. 



Pupil horizontal ; tongue heart-shaped ; vomerine teeth none ; fin- 

 gers and toes more or less webbed : outer metatarsals united ; 

 omosternum and sternum with a bony style. 



11. Rappia, p. 119. 



Characters of Rappia, but the pupil vertical. 



12. Megalixalus, p. 128. 



Pupil vertical ; tongue heart-shaped ; vomerine teeth ; fingers free, 

 toes free or nearly so, the tips not dilated ; outer metatarsals 

 united ; omosternum and sternum with a bony style. 



V6. Cassina, p. 131. 



Pupil vertical : tongue deeply emarginate : vomerine teeth : tips 

 of fingers and toes dilated, the terminal phalanges claw-shaped ; 

 outer metatarsals united : omosternum and sternum with a bony 

 style 14. Hylambates, p. 132. 



Pupil horizontal : tongue heart-shaped ; vomerine teeth none ; toes 

 webbed ; outer metatarsals united ; omosternum with a bony 

 style ; sternum cartilaginous .... 15. Hylixalus, p. 137. 



Characters of Hylixalus, but the tongue elliptic, entire, and the toes 

 nearly free 16. Prostherapis, p. 138. 



Characters of Prostherapis, but the omosternvim without bony 

 style 17. Phyllodromus, p. 139. 



Characters of the two latter genera, but no omostennim. 



18. Colostethus, p. 140. 



