164 



scend, and at tins part with more of colour ; hut they have 

 no middle line; and in the larger specimen their form is 

 much less regular than in the smaller. From the line of 

 separation of the whorls run a considerable number of brown 

 lines, encircling the convexity of the whorls, and uniting the 

 longitudinal lines of arrowy marks, but not actually breaking 

 in on their continuity. The comparative number of these 

 encircling lines, as well as their regularity, is much greater 

 in the larger specimen. 



A close inspection of these shells in comparison with a 

 small parcel of Naticce, of about the size of small peas, and 

 which without enquiry I had believed to be all of the more 

 common species, has impressed me with the belief that the 

 N. intricata is not so rare as has been supposed ; for I found 

 several among them distinguished by the regular lines of 

 arrow shaped marks, and thereby easily separated from 

 others of paler cast, and with only one line of obscure linear 

 marks near the border of the whorl. On further examination 

 I find also on these prettily marked specimens that the spire 

 is less elevated, and possesses the general form already 

 described as belonging to N. intricata. But it is remarkable 

 that in the umbilicus and band all these specimens are alike, 

 and resemble N. glaucina: a circumstance which does not 

 excite in my mind any doubt of their being of different 

 species, and that those having lines of arrow shaped marks 

 are a young state of N. intricata; for 1 believe that the 

 observation of Professor Forbes may be depended on: that 

 colour in the Naticae is distinctive of species, but at the same 

 time it tends to show that in their younger condition they 

 resemble each other in that which subsequently constitutes 

 their most important difference. In their youthful condition, 

 then, the marking of the body-whorl, and the depressed and 

 irregular form of the spire must be regarded as the chief 

 distinctions; to which in the adult state must be added the 

 situation and structure, of the band and the umbilicus inter- 

 secting it ; but how far this shell is thus separated from the 

 foreign species of Naticae described by authors, I have not 

 the means of knowing. 



CYPRJEA. COWRY. 

 MONEY COWRY. Cyprcea moneta, Turton's Lin., vol. 4, 



p. 3 12. 



This species is a common native of the Mediterranean, and 

 the few dead specimens which had been found on the Cornish 

 shores were judge/! to have been thrown where they where 

 they were discovered, by some accident. But in the month 

 of August 1844, a small specimen with the animal alive, was 

 taken in a trawl in Mount's bay ; and it is now preserved in 

 the collection of Mr. R. Q. Couch at Penzance. 



