XII. 



PLESIOSAURUS. 



315 



PLESIOSAURUS EURYMERUS. Phil. 



A femur of this species of plesiosaurus, found at Bedford, and 

 represented in the Oxford Museum by a cast in plaster, is unusually 

 expanded at the distal, and small at the proximal extremity. The 

 paddle presents a somewhat remarkable contraction in breadth 

 where the tarsal bones begin. There appears to have been six of 



Diagram CXX. Paddle of Plesiosaurus eurymerus, found at Bedford. 

 Scale, one-tenth of nature. 



these, though only five remain, as in the Diagram above; while, 

 to the extent of ten or eleven rows, two of the five toes can be 

 traced in such arrangement as to form a long narrow paddle. 



