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ON THE NAMES PLESIOSAURIA AND SAUROPTERYGIA. 



earlier name Plesiosauria, also the better from its non-committal 

 meaning, should stand for the order in its wide sense ; and that 

 the later name Sauropterygia should only be applied, in accordance 

 with Owen's definition and express designation of the type, as 

 well as with its etymology, to the suborder including the 

 Plesiosanridce, Pliosauridce, and Elasmosauridce, in which the 

 limbs are transformed into lryperphalangeal fin-like paddles. 



