218 U. S. NATIONAL MUSEUM BULLETIN 206 



d?. Toes free, or with only a trace of web. 



6i. Vomerine teeth between the choanae; mouth not unusually wide. 



Eupsophus (p. 291) 

 e*. Vomerine teeth well behind the choanae; mouth extremely wide. 

 /^ An axillary wing present; femur and tibia relatively long. 



Zachaenus (p. 358) 

 p. No axillary wing; femur and tibia relatively short. 



Craspedoglossa (p. 234) 

 c^. Fingers and toes with broadened disks; bony terminal phalanges mostly 

 T-sbaped. 

 d>. Vomerine teeth present; upper surface of some or all finger or toe disks 

 divided, 

 e^. Head long and narrow. 

 /'. Outer finger and toe with undivided disks. . . Basanitia (p. 218) 

 p. Disks of toes undivided (except sometimes in -parvus). 



Eleutherodactylus (p. 269) 

 e^. Head wide and short; all the digits with divided disks. 

 p. Head moderately broad; band and tibia relatively long; size 



moderate, up to 50 mm Elosia (p. 280) 



p. Head very broad; hand and tibia relatively short; size large, up to 



115 mm Megaelosia (p. 333) 



d^. Vomerine teeth lacking. 



e^ A heavy pad of black spicules on thumb . Crossodactylodes fp. 237) 



e^. No thumb pad Phrynanodus (p. 340) 



a?. Sternum bony, with a posterior cartilaginous expansion. 



i'. Fingers and toes with distinctly enlarged terminal disks, which have a 

 median furrow above, separating two padlike swellings (less distinct on 



fingers) Crossodactylus (p. 240) 



h^. Fingers and toes lacking enlarged terminal disks, but sometimes slightly 

 dilated, 

 c'. Vomerine teeth lacking. 



c?'. Quadratojugal reaching to maxillary Physalaeiuus (p. 341) 



d"^. Quadratojugal absent Pleurodema (p. 354) 



c2. Vomerine teeth present, large and prominent . . Leptodactylus (p. 301) 



Genus Basanitia Miranda-Ribeiro 



1923, Basanitia Miranda-Ribeiro, 1923d, p. 851. (Genotype, Basanitia lactea 

 Miranda-Ribeiro.) 



Generic diagnosis. — General appearance of Eleutherodactylus with 

 depressed head and snout rounded anteriorly. MaxUlary teeth present ; 

 vomerine teeth in two groups behind the choanae; palatines present. 

 Pupil horizontal. Sacral vertebra sub cylindrical, not dilated. Tym- 

 panum distinct; aperture of Eustachian tubes separated, large. A sub- 

 gular vocal sac. Fingers and toes provided with distinct terminal 

 disks, divided as m Elosia, from which this genus differs by the hyloid 

 form of the head and other characters. 



