2. RANA. ‘Nak 
Tympanum two thirds the size of the eye; 
first finger extending scarcely beyond 
second; head much longer than broad.. 47. lecontiz, p. 42. 
Tympanum two thirds the size of the eye ; 
BOM SHOrh, POMMGEd sk Ue sk ceva cee. 48. mgricans, p. 43. 
f. Vomerine teeth extending beyond the level of the 
hinder edge of the choane. 
Tibio-tarsal articulation not reaching the 
tip of the snout; a conical outer meta- 
AERA TIMCEOLE. 9). 6% a er stare oiere eee ates 49. pretiosa, p. 43. 
Tibio-tarsal articulation not reaching the 
tip of the snout; no outer metatarsal 
ED ATG Omer et eee 2 ee a hog lan abet 52. cantabrigensis, 
Tibio-tarsal articulation reaching the tip of [p. 45. 
the snout, or beyond; a rounded outer 
metatarsal tubercle ...........0.00. 56. silvatica, p. 47. 
3. Toes hardly half webbed. 
ERANNGBLOW Es occa ti cnn fofe sae yan es 32. capito, p. 34. 
B. Tips of toes dilated into small disks. 
Toes entirely webbed; first finger longer 
ia BOGOR Cor safe eens. y oP # oes, deo 59. palmipes, p. 48. 
Toes incompletely webbed; tympanum as 
larperas theveye ) Ss oie se sol ea ee 8 SS 60. copii, p. 49. 
First finger not longer than second ...... 61. migrilatus, p. 49. 
Toes entirely webbed; skin shagreened 
OMG tetre Piers kn nee Tce are amet 3 62. chrysoprasina, 
Toes incompletely webbed ; tympanum two [p. 49. 
thirds the width of the eye; skin sha- 
STeeNed APOE: ns. waves Ge wee spot ads ms 63. ceruleopunctata, 
[p. 50. 
III. Inpran anp AUSTRALIAN SPECIES. 
A. Fingers and toes acutely pointed, the latter very broadly 
webbed. 
First finger extending alittle beyond second 1. hewadactyla, p. 17. 
First finger not extending beyond second.. 2. cyanophlictis, p. 17. 
B. Fingers pointed or blunt; toes blunt or slightly dilated at 
the tips. 
1. Toes more than half webbed. 
a. Tympanum indistinct or hidden. 
First finger not extending quite as far as 
second ; upper eyelid very narrow; skin 
of back with transverse plaits ........ 5. corrugata, p. 19. 
