CHELONHLffi. 59 



35689. A more imperfect shell of the same type ; from Sheppey. 

 The plastron shows only the hyo- and hypoplastrals. 

 Part of the left scapulo-precoracoid is visible. 



Purchased, 1859. 



30526. Part of a shell, the anterior and posterior regions being 



wanting; from Sheppey. Purchased. About 1856. 



30527. Portion of a shell, and other bones ; from Sheppey. The 



posterior portion of the carapace and the greater part of 

 the hypoplastrals remain. The carapace agrees precisely 

 with the specimen figured by Owen in his ' Reptilia of the 

 London Clay, &c.' pi. iv. fig. 2. Part of the right scapulo- 

 precoracoid, the two coracoids, and the proximal part of 

 the right humerus are preserved. The humerus agrees 

 generally with that of Thalassochelys, but its lateral 

 process was apparently of the type of that of L. canta- 

 brigiense. Purchased. About 1856. 



25609. An imperfect shell, with several of the internal bones ; from 

 Sheppey. The proximal portion of the left coracoid is 

 shown, and exhibits its characteristic elongated form. 



Dixon Collection. 



44091. An imperfect shell apparently belonging to this species; 

 from Sheppey. The carapace is fairly preserved, and ex- 

 hibits the narrowed vertebral shields. The specimen is 

 larger than any of the preceding. The plastron is very 

 imperfect and has been crushed inwards. 



Purchased, 1873. 



42130. An imperfect carapace not improbably belonging to this 

 species : from Sheppey. Some of the marginals are pre- 

 served on the right side. Purchased, 1870. 



38972. The proximal extremity of a left humerus perhaps referable 

 to this species ; from Sheppey. Bowerhank Collection. 



