V 



of the snout. Outer fingers 2 / 3 



webbed 35. //. aruensis p. 56. 



ff. The heel reaches the tip of the 

 snout, or beyond. Fingers '/ 3 to 



'/ 2 webbed 36. H. saiiguinolciita p. 57. 



Iff. The heel reaches the temple or 



the eye. Fingers '/ 4 to '/ 2 webbed. 37. //. cacrulea p. 58. 

 f. Vomerine teeth behind the level of the 

 choanae. 



«. Fingers '/ 3 to '/ 2 webbed 39. H. congenita p. 60. 



ft. Fingers with a slight rudiment of 



web (or free) 40. //. rubella p. 62. 



B. No web between the fingers. 



I. Diameter of tympanum less than half that 

 of eye. 

 i. Vomerine teeth present. Heel reaches beyond 



tip of snout (16. H. arfakiana p. 39). 



2. Vomerine teeth absent. Heel reaches the eye. 17. //. •wultcrstorjfi p. 40. 

 II. Diameter of tympanum at least about half that 

 of eye. 



1. Snout rounded. Back without longitudinal 

 ridges. 



a. Vomerine teeth behind the level of the 

 choanae. 



a.. Toes 2 / 3 or 3 / 4 webbed (40. H. rubella p. 62). 



ft. Toes entirely webbed 



b. Vomerine teeth between the choanae. 

 Toes half webbed 



2. Snout pointed. Back with longitudinal ridges. 

 Disks very small 



Incertae sedis: 44. Hyla(>) dorsalis p. 65. 



41. H. obtusirostris p. "63. 



42. H. vagabunda p. 63. 



43. H. nasuta p. 64. 



Synopsis of the Tadpoles. 



A. Eyes lateral. Mouth of normal size. Lips with 

 papillae. 



I. Vent distinctly above the free border of the 

 subcaudal crest. 



1. All series of lower labial teeth nearly equal 



in length. Tail with dark vertical streaks. 22. ? H. bicolor p. 44. 



2. Outer series of lower labial teeth shorter 

 than the two other ones. Tail without vertical 



streaks 31. H, infrafrenata p. 51. 



