TROCHUS, 



Trochus conicus. Don. Br. Shells, v. t. 155. f. K StriAtusv 



Trochus erythroleucos. Lin. Trans, viii. p. 156,. p. S78» 



Putt. Hutch. Dorset, t. 18. £ 2. 



If the author of the Britijh Jloells had' confulted the 

 Trochus parvus of Da Costa, he would have been convinced 

 this fliell has been long known as a Britipj fpecies. 



Trochus cinereus. Don. Br. Shells, t. 155. fl U Cineheus.' 



LIji. Trans, viii. p.- 152. p. 289<.- 



The author of 'i.ie Bn'ti/bjbellshas very properly remarked 

 upon this fhell, originally given by Da Costa as indigenous, 

 that he fufpe6ls that writer was miftaken refpe6ling it ; for 

 though he defcribes it as common, fuch had never occurred 

 to him as Englijh. The only inducement Mr. Donovan 

 had for introducing it into his work, he informs us was, from 

 being in pofTefTion of the a6tual fpecimen from which Da 

 Costa took his figure and defcription. 



It feems to be the general opinion that Da Costa was 

 miftaken, efpecially as he fpeaks of it as common ; and that 

 it fliould be expunged from the catalogue of Briti/h tejlacea. 



This fpecies is the produce of the Mediterranean* 



TURBO. 



