5 



I. Diapophyses of sacral vertebra distinctly dilated. 5- Brevicipitidae p. 95. 



1. Upper jaw toothed, lower toothless subf. Dyscophinae p. 95. 



2. Both jaws toothless subf. Brevicipithiae p. 98. 



3. Lower jaw toothed, upper toothless. . . . subf. Ge?iyop/iryninae\>.\^(). 

 II. Diapophyses of sacral vertebra not or very 



slightly dilated 6. Ranidae p. 160. 



Synopsis of the Tadpoles. 



A. Lips with transverse series of horny teeth. 

 I. No sucking disk behind the mouth. 



1. Series of papillae narrowly interrupted in 

 the middle of the upper lip. Eyes superior. 



Teeth 6/5 or 6/6 Megalophrys hasselti p. 13. 



2. Series of papillae as in 1, or papillae 



absent. Eyes usually lateral. Teeth 2/3. . Hyla p. 24.- 



3. Papillae present, but absent along the upper 

 border of the upper lip. 



a. Vent median. Eyes superior Bufo p. 72. 



b. Vent dextral, opening at some distance 

 above the lower edge of the subcaudal 



crest. Eyes usually lateral Rhacophorus p. 242. 



c. Vent dextral, close to the lower edge 

 of the subcaudal crest. Eyes usually 



superior Rana part. p. 161. 



I Staurois p. 234. 

 II. A large sucking disk behind the mouth. . . • „ 



s s (Rana part. p. 161. 



B. Lips without horny teeth. 

 I. Spiraculum sinistral. 



1. Lips large Megalophrys Montana p. 8. 



2. Lips small Oxyglossus p. 230. 



[Kaloula p. 147. 

 II. Spiraculum median J ,„ , , 



r [Microhyla p. 152. 



Arcifera. 

 Epicoracoid cartilages overlapping each other. 



1. Fam. Pelobatidae. 



Upper jaw toothed, lower toothless. Diapophyses of the 

 sacral vertebra strongly dilated. Terminal phalanges of fingers 

 and toes simple. 



Omosternum usually present, but small and cartilaginous, 



