SYNOPSIS OF THE FAMILIES. IX 



II. Fingers and toes dilated into a disk. Opisthoglossa platy- 

 dactyla. 



a. Maxillary teeth. 



aa. Ear perfectly developed. HYLINA. 



a. No paratoids. 



aa. Sacral vertebra not dilated. 



1. Toes webbed. 16. Poltpedatidje. 



2. Toes free. 17. Htlodid^. 



/3/3. Sacral vertebra dilated. 



1. Toes webbed. 18. Hylid^. 



/3. With paratoids. 



{aa. Sacral vertebra not dilated?) 

 j3|(3. Sacral vertebra dilated. 



1. Toes webbed. 19. Pelodeyadid^. 



2. Toes free. 20. PHYXLOMEDUsiDiE. 



66. Ear imperfectly developed. MICRHYLINA. 



a. No paratoids. 



(aa. Sacral vertebra not dilated ?) 

 |3/3. Sacral vertebra dilated. 



1. Toes webbed. 21. Mickhylid^. 



6. No maxillary teeth. 



{aa. Ear imperfectly developed ?) 



66. Ear perfectly developed. HYLAPLESINA. 



a. No paratoids. 



aa. Sacral vertebra not dilated. 



1. Toes free. 22. Htlaplesid^. 



/3/3. Sacral vertebra dilated. 



1. Toes free. 23. Beachymeeid^. 



2. Toes webbed. 24. Hyl^dactylid^. 



C. Tongue free in front. PROTEROGLOSSA. 



a. No maxillary teeth. 



aa. Ear imperfectly developed. 



a. With paratoids. 



aa. Sacral vertebra dilated. 



1. Toes webbed. 25. Rhinopheynid^. 



