FOSSIL FISHES FROM LEWES. 



349 



Lign. 74. — Dercetis eloxgatus Length 16 inches. From Lewes. 



Fragments of the cylindrical body of fishes of this genus occur abundantly in the 

 chalk at Preston, near Brighton. The outline represents a specimen collected from 

 the chalk near Lewes ; it is the only instance in which the cranium remains. 



