PLATE XL. 



PAGE. 



Fig. 1. Ventrai, Pirate of Titanichthys ? 611 



Outer face showing wide marginal overlaps of adjoining plates and narrow plate 

 fitting on in front. 

 Fig. 2. MonocladoduS (Xarki 619 



Showing position, of teeth in the jaw with a magnified view of a single tooth and 

 of the two teeth in position. 



