[ 2 ] 



FIG. 3. 



SERPULA Bicornis umbilico perforato. 



The femilunar perforated Wormfhell, 

 The colour white, opaque and glofly ; 

 From Sandwich— very rare. 



FIG. 4. 



SERPULA Subrotunda dorfo elevato. 



The roundifh Wormfliell with an elevated back, 



The colour white, opaque and glofly, 



In the fand of all the different parts of the fliore. 



FIG. 5. 



SERPULA Tenuis ovalis Isvis. 



The thin fmooth egg-fhaped Wormfliell, 

 The colour pellucid, with milky veins. 

 From Sandwich— not common 



FIG. 6. 



SERPULA (Lagena) flriata fulcata rotunda. 



The round f\riated and furrowed Flafk Wormfliell, 

 The colour whitifh, tranfparcnt and glolTy, 

 From Sandwich, Reculver, and Shcpey — very rare. 



FIG. 7. 

 SERPULA (Lagena) marginata. 



The bordered Flafk Wormfhell, 



The colour white, tranfparent and glofTy, 



From Reculver — very rare. 



FIG. 8. 



