2 1 2 ANURA CHAP. 



6. The terminal phalanges are T-shaped and carry discs. The 

 omosternum is cartilaginous. 

 a. Discs divided by a dorsal groove. 



With vomerine teeth . Elosia, 3 species in Brazil. 



Without Syrrhopus^- 9 species, South America. 



fi. Discs undivided. 



With vomerine teeth . . Hylodes, p. 214. 



Without . . . Hylopsis. 



c. Terminal phalanges simple, pointed, or with very small discs. 



First finger opposed to the others . . Pseudis, p. 213. 



d. Terminal phalanges simple, without discs. 



a. Tympanum hidden. A large, flat gland on each side of 

 the body . . Gyclorhamphus fuliginosus, Brazil. 

 /?. Tympanum distinct. Head rough, entirely bony. 



Calyptocephalus, p. 215. 



y. Tympanum hidden or absent. Tongue roundish, not 

 nicked, free behind. Toes webbed. 



Telmatobius, 6 species in Western South America. 

 8. Tongue heart-shaped, free. Toes webbed. 



Ceratophrys, p. 215. 



e. Tongue round, free behind. Toes webbed. With two 

 tooth-like projections in the lower jaw. , 



Lepidobatrachus, p. 218. 



Tongue entire, or slightly nicked, free behind. Toes free. 

 Borborocoetes, 1 1 species in Western South America. 

 77. Tongue entirely adherent. Tympanum distinct. 



Zachaenus parvulus, Brazil. 

 B. Metasternum with a bony style. 



a. Pupil horizontal. 



a. Terminal phalanges T-shaped, with discs. 



Tympanum distinct. 



Plectromantis, 2 species in Western South America. 

 /3. Terminal phalanges simple ; tips not dilated into regular 



discs. 



1. Tympanum distinct. 



Sacral diapophyses slightly dilated. 



Edalorhina, 3 species in Ecuador and Peru. 

 Sacral diapophyses not dilated. 



Leptodactylus, p. 218. 



2. Tympanum indistinct or hidden, Paludicola, p. 220. 



b. Pupil vertical. Terminal phalanges simple and not dilated. 



Chili. 



a. Tongue slightly nicked . Limnomedusa macroglossa. 



P. Tongue entire, but free behind. Digits very long. 



Hylorhina silvatica. 



II. Australian genera. The terminal phalanges are simple and not dilated. 

 The omosternum and metasternum are cartilaginous, the latter forming 

 a plate, semi-ossified only in Heleioporus. 



= Phyllobates (part) Bibrori ; cf. Boulenger, P.Z.S. 1888, p. 207. 



