NUMBER OF VERTEBRA. 



[CHAP. 



Caudal. 



40 

 16 + 



22 

 16 + 

 2O 



16 

 19 



12 + 



12 + 



23 

 II 



15 



28 

 26 



13 + 

 28 

 30 

 28 



49 

 26 



27 



13 

 15 



8 + 



7 



7 



8 

 27 

 25 

 25 

 17 + 

 15 + 

 23 

 23 

 24 

 10 + 



23 

 23 



