392 BULLETIN* 34, UNITED STATES NATIONAL MUSEUM. 



IV. Exteraal metatarsi bound ; omosternuin aucl sterauia with osseous style. 

 a. Terminal phalanges ball and claw; an intercalated penultimate phalange. 



Pupil vertical; tongue emarginate; vomerine teeth; tips of digits di- 

 lated Hylambates Dum. 



aa. Terminal phalanges simple. 

 ji. An intercalated penultimate phalange. 



Pupil vertical ; tongue heart-shaped ; vomerine teeth ; fingers and toes free 



or nearly so Cassina Gird. 



/3/?. No intercalated phalange. 



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



free Arthroleptis Smith. 



aaa. Terminal phalanges bifurcate. 



/?. An intercalated penultimate phalange. 



Pupil horizontal ; tongue heart-shaped ; no vomerine teeth ; fingers and toes 



more or le.'-s webbed Hyperolius*' Rapp. 



Characters of Hyperolius, but pupil vertical Megalixalus Gthr. 



/?/?. No intercalated phalange. 



Pupil horizontal; tongue emarginate; vomerine teeth ; fingers and toes free 



or nearly so Cornufer Tsch. 



V. External metatarsi separated by web ; omosternum and sternum with osseous 

 style. 

 a. No intercalated phalange. 



Pupil vertical ; tongue emarginate : vomerine teeth ; toes webbed 



Nyctihatrachus Blgr. 



Pupil horizontal ; tongue emarginate ; no vomerine teeth; toes webbed 



Heteroglossa] Hallow. 



Pupil horizontal ; tongue emarginate ; vomerine teeth ; fingers free ; toes 



webbed ; ethmoid bone osseous above Bana Linn. 



Pupil horizontal; tongue emarginate; vomerine teeth; fingers free; toea 



webbed ; ethmoid bone cartilaginous above Eanula Pet. 



Pupil horizontal, tongue emarginate, no vomerine teeth ; ends of digits en- 

 larged Micrixalus Blgr. 



aa. An intercalated penultimate i)halange. 



Characters of Eana, but fingers more or less webbed; ends of digits en- 

 larged Rhacophortis Kuhl. 



Characters of Ehacophorus, but two inner fingers opposite the two outer 



Chiromantis P«t. 



Pupil horizontal ; tongue emarginate ; no vomerine teeth ; ends of digits en- 

 larged Ixalus D. & B. 



Like Ixalus, but pupil vertical Nyctixalus Blgr. 



VI. External metatarsals separated by a web; sternum without long style; omo- 

 sternum with one. 

 Pupil horizontal ; tongue entire posteriorly ; vomerine teeth none 



Oxyglossus Tsch. 



* Rappia Gthr., but sufficiently distinct from Ryperolia Gray. 



t Phrynoiatrachus Giiuth. ; Stenorhynclms Smith ; Leptoparius Peters ; ? Staurois Cope. 



