167 



the coaf] of Devon, which is about two inches and a half in 

 breadth. 



The fmaller fpecimens of piihefcens and diflorta are not 

 uncommon on many of our fliores, the former vaftly plen- 

 tiful on fome parts of the Scot'Jb coaft ; but we cann >t find 

 that the 1 rger fliells have occurred to any of our fi i'^nds in 

 that quarter, notwithftanding the authoriiy of Mr. Pennant 

 fcr ihcir tri.quency \n xhe Hehridc:; ; and we cannot help> 

 conjecturing that he was miflakcn in tlie fpecicsof which he 

 relates the tifh lo have been ealen by ihe gentry. 



Thefe large thin fliells arc rarely taken but in the deep, 

 and nev. r cafl en our fhores, being ground to pieces by the 

 agitation of the fea. Of the three analogous fpe< ies above- 

 mentioned \\\e pratenias is the leaft common, and of which 

 noinllance to our knowLdge hus yet occurred of its being 

 aken ni^ch above one inch in bread di. 



Tellina Simil's. Brit. Jlfiscel. p. 2£). t. 7-5. Telltva 



S I il I L I S. 



Mr. ScwERBY, (wi'h whom origirutes the difcovcry of 

 this new Ipecies^ detcribes the fpecinc chara(5i:t;rs as foiio.vs: 



" OvTite, ccmpre'Ted, Both v;ilves diagonally ftriated 

 fiv?-fi.vth- ov^r -iie iuiiace. Beak not curved." 



The audior remarks the great fimiatude be'wecn this 



fhell 



