xin. PLESIOSAURUS. 377 



the outer slope being on the largest surface. Measured over the 



Diagram CLXXVII. Ischial bones of Plesiosaurus. 



angle, the length of the small condyle is 6*5 inches, the breadth 

 3-5, probably reduced by crushing. 



The pubic bones sketched in connection have been also shewn 

 in Diagram CXLIV. as possibly pleiosaurian, neither appropriation, 

 however, being supported by specimens in apposition. 



I 



Diagram CLXXVII I. Ischial bones of Plesiosaurus. 



A pair of ischial bones from Shotover, considerably vaulted under 



