as a. Dojfef/Jjire fiiell. But however- this may be the true 

 Linmeaii bidens, (a figure of which is given in the Tranf ac- 

 tions ofthe Linncsati Society, Vol. viii. Tab, 5. fig. 3.} we mofl 

 cordially join in the opinion tliere Hated, that the Doctor 

 was deceived with refpedl to its being BritiJJj -. indeed ibis, 

 mofl probable fuch a note had been fo placed by miflaUe, 

 for in tlie Catalogue of Shells publiflied in Hutchins-'s Tiorjet, 

 Doctor Pulteney particularly defcribes his hidens to be 

 clofely and minutely flriated the whole length ; and adds 

 that it is common in woods, upon trees, and on mofs ; alfo 

 in the chinks of old walls. 



As however there is great probability that the fhell al- 

 luded to is the Linncsan bidens, though not indigenous to this 

 countr}^ it will perhaps be proper to adopt the name of 

 nigricans for the bidens of Tejlacea Britannica, as that title 

 was given to it by Doctor Solander, in the Portland cabL 

 net, and is now affixed to it in the Defcr'iptive Catalogue before 

 mentioned. 



Turbo perveisus. Zm. Trans, viii. p. 181. Perverius, 



Pult. Hutch. Do7'set: t. 19. f. 11. p^ 355^ 



The largefl and moll perfedl fpecimens of this fpecies we 

 have received from Scotland ; in the aperture of which is 

 obferved one fmall denticle, a rare occurrence in Englijb 

 fpecimens. 



R 2 Fasciatus, 



