45 



^. Plate VIII. 



The skull of a Macropoma Mantellii. In the collection of the Earl of 

 Enniskillen. 



Fig. 1. A view of the right side ; Fig. 2, of the left side ; Fig. 4, from behind. 

 Fig. 3. The under surface, so far as the matrix allows it to be seen. 



Plate XI. 



The body of Macropoma substriolatum, with a single scale, magnified. In the 

 Woodwardian Museum, Cambridge. 



Plate X. 



The head of the same specimen from above (Fig. 1), the sides (Figs. 2 and 3), 

 and below (Fig. 4). One half the size of nature. In the Woodwardian 

 Museum, Cambridge, 



