270 



T. with a thin, fragile, conic flicll : in fliape and ge* 

 neral appearance much Hke T. ziziphinus ; but is readily 

 diftinguiflied by the fine granulated ridges that compofe 

 each volution, without the larger one at the bafe of each* 

 fo confpicuous in that fhell. The aperture is not fo much 

 ansulated ; the bafe more rounded, and marked with nu- 

 merous, fmall, rcddifli fpots, never obfcrved in the other 

 fpecies ; the volutions too are more rounded ; and the 

 fhell not fo thick and flrong: bafe imperforated: the 

 Columella reflefts a little, and forms a fmall ridge and 

 deprelTion in the place of an umbilicus: colour brown, 

 with broad, longitudinal, deeper coloured flripes ; fome- 

 times flefii-coloured, with a few faint pink markings. 

 Length an inch and a quarter; breadth rather lefs. 



This fpecies has probably been confounded with the 71 

 ziziphinus, and may poffibly be the variety of that (liell 

 defcribed by Linn.eus, in the Mufeum Rcgince, as being 

 rota pallida anfraclibiis bafi gibbis, Jiriatis, JubiiUjJime 

 pundis papillojis. 



Doftor PuLTENEY, who favoured us with this fiiell, 

 fays it is found on the north fnore at Poole, and at Weymouth. 



Da Costa's defcription anfwers in moft refpefts; but 

 his fliell is dated to have a wide and deep cavity at the 

 bafe, at the bottom of which a tortuous umbilicus is feen. 



This, however, his figure does not in the leafl; exprefs; 

 he adds alfo, that the infide is whitc^ but not pearly: this 



might 



