THE 



EXPLANATORY INDEX 



O F T H E 



Species of S h e l l s contained in the Three Plates 



^ W I T H T H E 



Places where found, and their Degrees of Rarity. 



S E R P U L A. The Wormfhell. 





FIG. I. 



jSERPULA Subovalis intorta umbilico pervio. 



The hollow oval Wormfliell, 



The colour white and glofly. 



It varies in fize and fhape, and is found in every portion of the fea 

 i fand which hath been examined. 



I An Linnxi S. N. p. 1264 — 791 Seminulum ? Gualtieri Tab. lo. F. S. 



I 



! F I G. 2. ^, 



SERPULA Bicornis ventricofa. 



The bellied femilunar Wormfliell, 



The colour white, opaque and glofly, 



From Sandwich and Reculrer — tho' not common. 



*^ B F I G. 3. 



