4. iitla. 343 



fi. Vomerine teeth on a level with the hinder edge of 

 the choanee. 



Tympanum ahout two thirds the diameter 



of the eye ; tibio-tarsal articulation not 



reaching- beyond the eye ; no tarsal fold . 31 . venulosa, p. 3G4. 

 Tympanum one third or one half the diameter 



of the eye ; tibio-tarsal articulation not 



reaching beyond the eye ; no tarsal fold. 32. nigropunctata, 

 Tympanum two thirds the diameter of the [p. 3G6. 



eye ; tibio-tarsal articulation reaching 



beyond the eye ; a tarsal fold 33. mesophcea, p. 366. 



Tympanum about two thirds the diameter 



of the eye ; tibio-tarsal articulation 



reaching the tympanum or the posterior 



border of the eye; a tarsal fold 44. versicolor, p. 372. 



Tympanum two thirds the size of the eye ; 



tibio-tarsal articulation reaching beyond 



the posterior border of the eye ; a tarsal 



fold ; body rough 45. arenicolor, p. 373. 



Tympanum half the diameter of the eye ; 



tibio-tarsal articulation reaching the tip 



of the snout 49. zebra, p. 375. 



Tympanum about two thirds the diameter 



of the eye ; tibio-tarsal articulation reach- 

 ing the eye or slightly beyond ; a tarsal [p. 377. 



fold ; upper surfaces smooth 53. carolinensis, 



y. Vomerine teeth behind the level of the choanae. 



Tympanum one third the diameter of the 



eye ; snout elevated, vertically truncate . 82. parviceps, p. 393. 

 Tympanum one sixth the size of the eye ; 



snout prominent, truncate ; a distinct 



rudiment of pollex 85. palliata, p. 394. 



Tympanum one third the diameter of the 



eye ; snout rounded, as long as the dia- 

 meter of the orbit ; a distinct rudiment 



of pollex 86. polytcenia, p. 3!'4. 



Tympanum less than one third the diameter 



of the eye ; snout rounded, shorter than [p. 395. 



the diameter of the orbit 87. rublcundula, 



c. Outer fingers slightly webbed at the base, sometimes 

 rather indistinctly. 



a. Vomerine teeth in the middle between the choanoo. 



Tympanum half the diameter of the eye ; 

 tibio-tarsal articulation reaching the tip 

 of the snout ; toes two-thirds webbed ; 

 snout not prominent 48. ft/sea, p. 374. 



