plesiosauridjE. 281 



40122. A rather smaller femur ; from Lyme-Eegis. Purchased. 



R. 1389. A still smaller femur ; probably from Street. No history. 



R. 672. A small and immature femur ; from Lyme-Eegis. 



Presented by J. E. Lee, Esq., 1885. 



40123. A very small immature femur ; from Lyme-Eegis. 



Purchased. 



32723. A rolled femur of a comparatively small species ; from the 

 Upper Lias of Hortot (Manch), France. 



Tesson Collection. Purchased, 1857. 



R. 1396. A radius or tibia of a large species; probably from Street. 

 This specimen is probably the radius of Thaumatosaurus 

 arcuatus. No history. 



39498. An equally large but specifically distinct radius or tibia ; 

 from the Lower Lias of Charmouth, Dorsetshire. 



Purchased, 1865. 



40120. A large tibia remarkable for its great relative width ; from 

 Lyme-Eegis. This specimen may perhaps belong to P. 

 conybeari. Purchased. 



44908. A tibia of the same type as the preceding specimen ; from 

 the Lias, locality unknown. 



Presented by Sir R. Owen, K.C.B., 1870. 



28333. A radius of a medium-sized form ; from Lyme-Eegis. This 

 specimen would agree approximately with the corresponding 

 bone of P. rostratus. Purclmsed, 1853. 



28333 a. A smaller radius of similar type ; from Lyme-Eegis. 

 Might belong to P. dolichodirus. Purchased, 1853. 



R. 1398. A more elongated radius; locality unknown. No history. 



40123. A tibia of the approximate size of that of P. rostratus ; from 

 Lyme-Eegis. Purchased. 



R. 1397. A slightly larger and relatively wider tibia ; locality 

 unknown. No history. 



28333b: A somewhat similar tibia; from Lyme-Eegis. 



Purchased, 1853. 



32396. A smaller tibia : from L\mc-Regis. Furoha8ed s L853. 



