CHELOKLD^. 39 



35198. Two neural bones. Purchased, 1859. 



35187. Two marginals of the same type as those of No. 35177. 



Purchased, 1859. 



35187 a. An imperfect marginal, in two fragments. 



Purchased, 1859. 



35208. A pygal bone. The posterior border is emarginate, as in 



Thalassochelys. Purchased, 1859. 



35209. A smaller pygal, with the posterior border entire. 



Purchased, 1859. 



35331. The centrum of a large posterior cervical vertebra. This 

 specimen is rather smaller than the one (No. 35385) 

 mentioned on p. 37, but may belong to the same form. 



Purchased, 1859. 



41785. An imperfect caudal vertebra. Purchased, 1869. 



35177. The glenoidal portion of a small right scapulo-precoracoid. 



Purchased, 1859. 



35177 a. A smaller and more imperfect specimen of the same bone. 



Purchased, 1859. 



35316. The proximal extremity of a small right femur. 



Purchased, 1859. 



35316 a. A nearly similar specimen of the opposite side. 



Purchased, 1859., 



39109. The proximal extremity of a nearly identical femur of the 

 right side. Boiverbank Collection. Purchased, 1865. 



C. From the Gault of Folkestone. 



It. 19. Slab showing the ventral aspect of three imperfect costals of 

 an immature turtle. 



Gardner Collection. Purchased,, 1876. 



47210. Slab showing a marginal, portions of two costals, and an 

 imperfect vertebra of a much larger turtle. 



Gardner Collection. 



47210 a. An associated slab, containing portions of costals and the 

 centra of two dorsal vertebrae. The vertebrae are unusually 

 short. Gardner Collection. 



