﻿PLATE XL 



Omosaurus armatm. 



Fig. 



1 . Side-view of neural arch and spine of a cervical vertebra. 



2. Upper-view of the same. 



3. Side-view of a cervical vertebra of Varanus niloticus. 



4. Upper-view of the same. 



All the figures are of the natural size. 



The subject of figs. 1 and 2 is from the Kimmeridge Clay at Swindon, Wilts. In 

 the British Museum. 



