C 4 ] 



F I G. 12. 



SERPULA Re6la umbllico pervio anfractu apicis unico involuto. 



The fingle fpired ftrait horn Wormfliell with a pervious umbihcus. 

 The colour whitifh, tranfparent and glofly, 

 From Reculver — very rare. 



F 1 G. 13. 



SERPULA Quatuor anfraftibus umbilicata apertura rotunda. 



The four fpired round mouth umbilicated Wormfliell, 

 The colour white, opaque and gloffy. 

 From Sandwich — not common. 



F I G, 14. 



SERPULA Apertura rotunda anfraftibus duobus umbilicata. 



The two-fpired umbilicated round mouth Wormfliell, 



The colour white, opaque and glofly. 



Found adhering to lobfl:ers, both fingle and in cluftcrs. 



D E N T A L E. The Toothflicll. 



F I G. is. 



DENTALE Apice imperforata tranfverfaliter fubfl:riata. 



The imperforated tranfvcrfly flriated toothflicll, 

 The colour white ami opaque, 

 From Sandwich — not very common. 



PATELLA 



