324 MOLLUSCA. 



heaps of Nidlipora (" coral ") dredged for manure at Bantry Bay. W. 

 T., 1834. Dredged in Clifden, Killery, and Roundstone Bays, 3—12 

 fathoms (bottom various), and living between tide-marks at Lahinch 

 (County Clare), by our party, 1840. Ballysodare (County Sligo), Mrs. 

 Hancock. I have remarked it to be very common at Portpatrick in Scot- 

 land, and at Brock in the Isle of Wight. 



C. reticulatum, var. 



Whorls nine or ten, with three spiral ridges, the uppermost very pro- 

 minent, and forming a keel round the suture ; ridges crossed by somewhat 

 distant longitudinal furrows. 



Length 3^ lines, breadth H. 



Colour purplish brown. 



This shell differs from C. retkulatitm in the prominent keel bounding 

 the whorls on the upper side, and in the spiral furrows being much deeper 

 than the longitudinal, and these less marked than in that species. As one 

 indi\'idual only has been obtained, I named it doubtfully as new, C. cari- 

 natum ; but according to the better judgment of Professor Harvey, it is 

 only a variety of C. reticulatum ; the shell was found by this gentleman 

 at Miltown Malbay. 



Montagu remarks that " a variety of C. reticulatum has one or two 

 strong ribs crossing some of the volutions." Test. Brit. p. 272. 



Ann. Nat. History, vol. v. p. 98. 



C. costatiim, Don. 



Dillwyn, in his Descriptive Catalogue of Recent and Fossil Shells, 

 notices this species as " plentiful in Bantry Bay," p. 679. 



Turton considered that the remark could not apply to this species, 

 which he was unable to find in that locality ; an insufficient reason 

 certainly. 



But the fact is doubted by others, and I am unable positively to clear 

 up the subject. In several collections I have seen specimens of this shell 

 received from persons, some of whom stated that they had themselves 

 found them in Bantry Bay, and others on the coast of Waterford, between 

 Dunmore and Tramore, &c. 



Genus Triphoris. 

 T. adversus, Mont. 



Turton noticed this as found at " Seafield (western coast), very rare." 

 Professor Harvey considered it as common at Miltown Malbay ; it 

 has been obtained in shell-sand collected at Bundoran by Mrs. Hancock ; 

 and is included in the lists of species dredged in Birterbuy Bay by Dr. 

 Farran and Mr. Barlee. 



I have collected specimens at Brook, Isle of Wight. 



Ardmore, Mrs. Mackesy. 



In shell-sand, mouth of Belfast Bay, 1850, Mr. Hjnadman. 



Family BucciNlD^. 



Genus Nassa. 

 N. reticulata, Linn. 



Generally distributed. 



iV. macula, Mont. 



Generallv distributed. 



