Plate V. 



VOLUTA. 



Nautilus. 

 (Greatly reduced. 



Cassidaria. 



ROSTALLARIA. 



Pectunculus 



Triton. 



HAMPSTEAD SHELLS. 



{Fossils from the London Clay.) 



All the above figures except that of the Nautilus are drawn from specimens taken from the clay 

 of Hampstead by the Author. 



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