PLATE CXXXV. 



albus, parvus tenuiter cancellata. Da Costa is not so very clear, nor 

 is his figure expressive, because it represents the transverse ridges too 

 prominent. Chemnitz gives a larger specimen of it than any we 

 have seen : and notwithstandine: his references to Da Costa and 



others, may not be of the same specfes. ^The shell figured by 



Lister, No. 67, whicli seems to have occasioned the confusion before 

 alluded to, it should be observed, is described by Gmelin, in these 

 words : testa subrhomboidea decussatim striata alba : natibus approxi- 

 inatis, vulva cordata. Area reticulata. 



Hence it is presumed the shell found on our coast ought still 

 to be considered as the Area laetea of Linnaeus, and that the shell 

 which is strongly striated in a reticulated manner, and so much 

 larger ; and has been hitherto regarded by some as that species, 

 was never described, or even noticed by Linnaeus. Nothing 

 can be more evident than that tliis is the opinion of his editor 

 Gmehn, both from his references to the figures of laetea, and by his 

 giving a new name and character to that very shell in Lister which 

 has been mistaken for it, and which he conceived Linnseus had 

 omitted. 



This kind is generally considered as an inhabitant of DorsetshirCj 

 Devonshire, and CornwalJ. 



