5S 



there does not appear a doubt of their being identically the 

 fame fpecies. This like many of the genus is, when perfedl, 

 covered with a pilous epidermis; and the animal adlieres firm- 

 ly to the interftices of the rocks by its byjfus. Lister notes 

 it as an occidental ihell. 



We fincerely wifh it was in our power to fatisfadlorily Pilosa. 

 determine the real diftin6lion between this fliell and Area p. 136. 

 glycymeris, fmce fo many opinions feem to prevail. That 

 LiNN^us confidered there was fome trifling diflinftion is 

 evident by his defcriptions of them. 



By confulting fome of our conchological friends, we find 

 they are as much in the dark as ourfelves. From one of 

 them we received what was confidered as the two fpecies, 

 but they evidently were the fame, differing only in the num- 

 ber of teeth ; both are equally fub- orbicular and equilateral, 

 and without doubt are thofe which are fo commonly found in 

 Guenifey, and on the weftem fhores of England. From 

 another quarter we received a very different fpecies for 

 glycymeris, together with a fpecimen o^ pilofa, the former of 

 wliich appears to be without doubt the Area deujla of Doctor 

 SoLANDER, and of Mufeum Portlandicum, No. 53. It is well 

 figured by Knorr, Tab. 14. f . 3 : and Hands in the cabinet 

 of Mr. Wood under the title of A. deufla, of Solander. 



Many writers on Britijlj conchology have given the lliell 

 which is now generally confidered as pilofa for glycymeris ; 



but 



