CHELONIDJE. 37 



41672. The symphysis and part of the left ramus of a smaller man- 

 dible of the same general type as the preceding ; from the 

 Chalk of Hailing, Kent. This specimen, if not specifically 

 the same as the foregoing mandibles, apparently indicates 

 a closely allied form. 



Toulmin- Smith Collection. Purchased, 1869. 



39114. An imperfect mandible, in matrix, apparently specifically 

 identical with the preceding specimen ; from the Chalk of 

 Hailing, Kent. Figured by Owen in his ' Cretaceous 

 Eeptilia/ pt. i. pi. vii. a. fig. 6. 



Bowerbank Collection. Purchased, 1865. 



35385. The centrum of a posterior cervical vertebra, which from its 

 large size may very probably belong to the same form as 

 the above-mentioned mandibles from the same horizon ; 

 from the Cambridge Greensand. Purchased, 1859. 



35203. The imperfect proximal extremity of a small left humerus 

 provisionally referred to this form ; from the Cambridge 

 Greensand. This specimen agrees approximately in rela- 

 tive size with the type cranium ; it differs from the 

 humerus of Lytoloma cantabrigiense (p. 69) and agrees 

 with that of Chelone in the sharp single ridge formed by 

 the radial process, and probably also by the lesser con- 

 striction of the shaft. Purchased, 1859. 



35205. The proximal extremity of a similar but smaller left 



humerus ; from the Cambridge Greensand. 



Pier chased, 1859. 



35206. The proximal extremity of a still smaller humerus, appa- 



rently of the same type ; from the Cambridge Greensand. 



Purchased, 1859. 



Specimens which may belong either to Chelone or Lytoloma. 



A. From the Chalk. 



49008. Fragments of costal bones, in matrix ; from the Middle 

 (Fig.) Chalk of Burham, Kent. Figured by Owen in his ' Cre- 

 taceous Eeptilia,' (Mom Pal. Soc), pt. i, pi. vi. fig. 3, as 

 Chelone camperi (?). Purchased, 1878. 



49010. Mass of rock containing a number of marginals in apposition 



(Fig.) and the extremities of two costals ; from Burham, Kent. 



Figured by Owen, op.cit. pi. vi. figs. 1, 2, as Chelone cam- 



