172 



Annals of the Carnegie Museum. 



In the paratype, No. 1081, the third, fourth, and fifth dorsals are 

 represented only by the neural spines. The latter when found were 

 lying in their relative position, while the centra and neural arches were 



Fig. 14. Lateral views of anterior dorsal vertebrae of Promerycochariis carrikeri. 

 ^ nat. size, i, fourth dorsal. No. 1047; 2, outline of centrum and neural arch of the 

 fifth dorsal vertebra, No. 1081; 3, sixth dorsal vertebra, No. 1081. 



weathered away. The centrum and neural arch of the fifth dorsal 

 are restored, while the vertebral column anterior to this vertebra is 

 that of No. 1047. 



Fig. 15. Lateral view of the seventh dorsal vertebra of Promerycochcerus carrikeri. 

 No. 1 081; I nat. size. 

 Fig. 16. Lateral views of vertebrae from the middle dorsal region of Promery- 

 cochcerus carrikeri. No. 1081; f nat. size, i, eighth dorsal. No. 1081; 2, ninth 

 dorsal, No. 1081; 3, tenth dorsal. No. 1081. 



The Seventh Dorsal (Fig. 15).— The most characteristic feature of 

 this vertebra in the paratype is the tendency of the posterior inter- 

 vertebral notch to be transformed into a foramen, like that found in 

 Bos. On the right side the foramen is complete, while on the left 



