B. Tongue adlierent in fi'ont, more or less free behind : 

 OPISTHOGLOSSA. 



I. Fingers and toes tapering or cylindiical, not dilated at the end. 

 Opisthoglossa oxydactyla, 



a. Maxillary teeth. 



act. Ear perfectly developed. RANINA. 



(I. No paratoids. 



aa. Sacral vertebra not dilated. 



1. Toes webbed. 4. Eanid^. 



2. Toes fi'ee. 5. Cystignathid^. 



/3/3. Sacral vertebra dilated. 



1. Toes webbed. 6. Discoglossid^. 



2, Toes free. 7. Asteeophetdid^. 



/3. With paratoids. 



(aa. Sacral vertebra not dilated ?) 

 /3/3. Sacral vertebra dilated. 



1. Toes webbed. 8. Alytid^. 



2. Toes free. 9. Upeeoliid^. 



hb. Ear imperfectly developed. BOMBINATORINA. 

 a. No paratoids. 



aa. Sacral vertebra not chlated. 



1. Toes webbed. 10. BoMBiNAXOEiDiE. 



h. No maxillaiy teeth. 



aa. Ear imperfectly developed. BRACHYCEPHALINA. 



a. No paratoids. 



(aa. Sacral vertebra not dilated ?) 

 /3/3. Sacral vertebra dilated. 



1. Toes webbed. 11. PnEYNisciDiE. 



2. Toes free. 12. BRACHTCEPHALiDiE. 



bh. Ear perfectly developed. BUFONINA. 

 a. No paratoids. 



(oa. Sacral vertebra not chlated ?) 

 /S/3. Sacral vertebra dilated. 



1. Toes webbed. 13. Rhinodeematid^. 



2. Toes free. 14. ENGTSxoMATiDa;. 



/3. With paratoids. 



(an. Sacral vertebra not dilated?) 

 (ift. Sacral vertebra dilated. 



1. Toes webbed. 15. Bufonid^. 



