225 



lb. 



B. with a fmooth, glofTy, pellucid, white, fub-oval Diai'ha\'a. 

 fhell; body large, ventricofe, with three very fmall volu- Tab. 7. f. 8. 

 lions: apex fomewhat pointed, but not much produced: 

 aperture fub-oval, nearly the length of the fliell ; outer lip 

 attenuated ; inner lip fmooth ; Columella plain, not vifible 

 to the end. Length rarely exceeding three-eighths of an 

 inch; breadth two-eighths. 



This is a fcarce fpecies, found only in Salcovib bav, ex« 

 cept one mutilated fpecimen at Falmouth; from the for- 

 mer place we have taken it alive by dredging, adhering 

 to the infide of old oyfter (hells. 



Is fo extremely thin and brittle, that it is difficult to 

 obtain perfeft ; and is fufficiently tranfparent for the 

 Columella to be feen through the (hell. 



It is not very unlike the figure o^Voluta Jonenfis in the 

 BritiJIi Zoology, but not quite fo long, and the outer lip 

 fpreads more upwards ; it cannot, h(^wever, be thdt fiiellj 

 as it wants ihe plicated Columella, the elTential charafter 

 of that genus. 



Conchologifts have thought that fome of the Cypr(Z(Z 

 afTume a very different appearance in their young and 

 adult ftates; fiich a prevailing opinion, from perhaps a 

 fingle indance in a foreign fpecies, pofhbly not well au- 

 thenticated, may lead to a conjerture that this is no otlier 

 than the young of Cyprcea Pediculus ; a circumftancc 



Gg which 



