10 RANIB^. 



Inner metatarsal tubercle compressed ; snout 



pointed 51. arvalis, p. 45. 



b. Tibio-tarsal articulation reaching beyond the tip of the 

 snout. 



Tympanum not two thirds the width of the 

 eye ; first finger not extending beyond 

 second ; belly spotted 53. iberica, p. 46. 



Tympanum hardly two thirds the width of 



the eye ; belly spotted 54. latastii, p. 46. 



Tympanum nearly as large as the eye, close 



to it ; belly immaculate 55. agilis, p. 46. 



Snout very long ; no outer metatarsal tu- 

 bercle 57. japonica, p. 47. 



B, Tips of fingers and toes dilated into 



large disks ; belly granulate .... 107. bnergeri, p. 73. 



II. Ameeican Species. 



A. Tips of toes not dilated. 



1 . The web extends to the tip of the fourth toe. 



Tympanum nearly as large as the eye ; 



tibio-tarsal articulation not reaching the 



eye 34. monteziimce, p. 35. 



Tympanum as large as or larger than the 



eye ; tibio-tarsal articulation reaching the 



eye 35. catesbiana, p. 36. 



2. Toes at least three-fifths webl)ed, the web not extending 

 to the tip of the fourth toe. 



a. Tympanum as large as or larger than the eye. ^ 

 First finger not extending beyond second . . 30. clamata, p. 36. 



b. Tympanum smaller than the eye. 



a. Vomerine teeth between the choanse. 



Habit stout ; skin porous 37. sejyfentrionalis, 



Head mqderatc ; tympanum nearly as large [p. 37. 

 as the eye ; glandular lateral fold mode- 

 rate 43. halecina, p. 41. 



Head moderate ; male with external vocal 



sacs 41. uti'icularia, p. 40. 



Head large ; male with external vocal sacs . 42. areolata, p. 41. 



Tympanum nearly as large as the eye ; 



glandular lateral fold very broad 44. palustris, p. 42. 



Tympanum about half the size of the eye . . 45. macroglossa , p. 42. 



Tympanum nearly as large as the eye ; first 



finger not longer than second 46. macidata, p. 42. 



