50 



Zooloyical Society : — 



" Unfortunately the tympanic bones are wanting in both, and I 

 can tell you nothing of them. But the zygomatic bone is preserved, 

 and is of the same form as that figured in Cuvier's work, figs. 1 

 and 3, but somewhat smaller than the latter figure. 



" The seven cervical vertebrae are free, separate from each other, 

 and the body of every one has the epiphyses on each side, the specimen 

 being that of a young individual. But in the atlas and front side of the 

 axis these epiphyses do not exist. I send vou drawings of the first 

 (fig. 2), the second (fig. 3), the fourth (fig. 4), and the sixth (fig. 5) 



Fie. 3. 



Second cervical vertebra. 



vertebrae ; the third exactly resembles the fourth, and the fifth 

 only differs in a small opening in the lateral arc, indicated in my 

 drawing of the fourth, on the left side. The seventh has no inferior 



Fig. 4. 



Fourth cervical vertebra. 



