EXPLANATION OF PLATE 14. 



Fig. 1. — Shastasaurus pacificus, Merriam. Posterior dorsal vertebra? of 

 type specimen, represented about four-tenths natural size. 



Fig. Left (?) pubis from type specimen of S. pacificus. Somewhat more 

 than one-fourth natural size (.28). 



Fig. 3. — Shastasaurus careyi n. sp. Posterior cervical or anterior dorsal 

 vertebra 3 . About one-third natural size. 



Fig. 4. — Cross-section of posterior of two centra seen in figure three, show- 

 ing rudiment of parapopbysis. One -fourth natural size. 



Fig. 5. — Shastasaurus altispinus n. sp. Element from anterior margin of a 

 limb. One-half natural size. 



