ALYTES. 



107 



hyals, apart at the base, in front of which a slender V- 

 or Y-shaped ossicle is developed on the ventral side. 



Vertebral column twice or a little more or a little 

 less than twice as long as the skull. Spine closed 



Fig. 62. 



Skeleton of male. 



above, the neural arch without or with a very short 

 postero-median process. Second, third, and fourth 

 vertebrae with short diapophyses, with short auto- 

 genous ribs. The first rib the shortest and directed 



