PLATE IV. 



Goniopholis crassidens. 



Fig. 



1 . Dorsal scute, outer surface. 



2. Ventral scute, outer surface. 



3. Sutural margin of ventral scute. 



4. Section of ventral scute. 



Suchosaurus cultridens. 



5. Side view of crown of tooth. 



6. Hind view of crown of tooth. 



7. Hind articular surface of centrum of dorsal vertebra. 



8. Under surface of centrum of dorsal vertebra. 



The subject of fig. 1 is from the Limestone Series of the Middle Purbeck. 

 The subject of figs. 2 — 4 is from the Wealden of Cuckfield. 

 The subjects of figs. 5 — 8 are from the Wealden of Tilgate. 



All the figures are of the natural size. 



