- BY C. D. CilLLIES AND EDNA F. PEBERDY. 



51 



o-nt. 



^r^ 



H> 



8. 





double 



Con ve;( ( ty 



figs. 



O/nC i y J 



cre5t 





^ 



B. 



'^10. 



bn-.tle 



Fig. 4- 



-Atlas A. anterior view. 



B. .side view . 

 -2nd vertebia, dorsal view. 

 -3rd veitebra, posterioi view. 



post 2ygr.= posterior zygapophysis. 

 -5th vertebra, dorsal view. 



ant. zyg. =Ai\tev\ov zygapophysis. 

 -9th vertebra, ventral view. 

 -9th vertebra, dorsal view. 

 -Urostyle. A. side view with bristle showing course of neural 



canal. B. dorsal view, with bristles indicating position of 



10th foramina. (Figs. 4-10 enlarged 2^ times). 



