401 



times in an undulated manner: fuch are ufuallv larcjer, 

 and not fo thick in the lips, but the margin of the aper- 

 ture is equally repand. 



It is obfervablein all thefe fiiells, the back of the body 

 volution is invariably deilitute of ribs, and the infide of 

 the mouth in frefii {liclls, extremely gloffy : the fpires 

 too, are very little railed, and the line of feparation very 

 fine, which in worn fliells, fcarce mark them: fuch are 

 frequently found quite white. Live fpecimens are co- 

 vered v/ith a yellowifli-brown epidermis. 



Length rather more than^i quarter of an inch; breadth 

 nearly one half its length. 



This fpccies is not uncommon in Corntoall, particu- 

 larly about Falmouth; and is equally plentiful on the 

 fouth coaft of DevonJJiirc, and DorfetJIiire ; and the 

 fmooth variety at Southampton. Have alfo found it 

 more fparingly, about Biddeford in the north of Devon, 

 and on the fouth coaft of Wales. 



In our communications with our late worthy friend 

 Doftor PuLTENEY, we fent him this fhell, which he 

 acknowledged to be his Turbo cnflatus, and confequent- 

 ly clearly proved that he had fallen into an error, in 

 quoting the Turbo parvus of Da Costa : polTibly, how- 

 ever, he has been right in quoting Strombiformis albus 

 of the fame author, for we find he was not fingular in 



Fff that 



