342 MOLLUSCA. 



Family CONCHACE.E. 



Genus Cardium. 

 C. echinatian, Linn. 

 Commonly thrown ashore on extensive sandy beaches. Dredged from 

 oozy sand in Belfast and Strangford Loughs, Mr. Hyndman and W. T. 



C. ciUare, Don. t. 32, f. 2. 

 Dublin Bay and Portmarnock ; rather scarce. Brown's Irish Testacea. 

 Is, according to Turton, the young of C. echinatam, Br. Biv., p. 184. 



C. acideatiim is believed to have been erroneously introduced into the 

 Irish Catalogue. 



C. elongatum, Mont. 



Noticed in Turtons Catalogue as from " Dublin Bay, rare," but in his 

 subsequent Avorks (Conch. Diet, and Brit. Biv.) Devonshire localities 

 only are named. I have, however, seen specimens from Portmarnock in 

 Mr. Warren's collection. It has been sparingly dredged in 1834, and 

 subsequently in sand from 6 to 10 fathoms in Strangford Lough, G. C. H. 

 and W. T. ; also by us, in one instance, in Belfast Bay. 



It is included in Mr. Barlee's list of Birterbuy Bay species, and in Mr. 

 M'Andrew's of those ckedged in or near Bantry Bay. 



C exigimm, Br. 



Dredged in Belfast and Strangford Loughs, commonly from about 

 4 to 10 fathoms on muddy and shelly ground, Mr. Hyndman and W. T. 

 Dredged at Red Bay (County Antrim), Mr. Hyndman ; and in Clew, 

 Clifden, Killery, and Roundstone Bays by our party in 1840. 



C. nodosum, INIont. 

 As last, in the two first-named localities, excepting that it frequents 

 deeper water, Mr. Hyndman and W. T. Dredged at Ireland's Eye, 

 Dublin Coast, Mr. Hyndman ; in Clew, Clifden, and Killery Bays in 

 1840, and found between tide-marks at Lahinch, W. T., &c. Birterbuy 

 Bay, Dr. Farran, Mr. Barlee. Bantry Bay, 1834, W. T. 



C edule, Linn. 



Common and gregarious, especially in shallow sandy bays, near low- 

 water marks. Brought in quantities to Belfast for sale [as human food, 

 particulai'ly from Strangford Lough. Attains a very large size on the 

 Sligo coast and in Donegal Bay. 



At the very extensive sandy bay called Lurgan Green, Co. Louth, huge 

 rakes of the same form as hay-rakes are used in gathering cockles. 



Yar. fasciatum, Mont. 



Young shells in my collection. 



In some localities— Dundalk Bay (Mr. Hjiidman), Ballysodare, Co. 

 Sligo (Mrs. Hancock) — are coloured as this is described and figured by 

 Montagu ; as are full-grown shells from a lake of brackish water in the 

 largest of the South islands of Arran (R. Ball and W. T., 1834) : these 

 are also very thin, as indeed the banded shells of all sizes are generally. 

 I rather regard them as C. edule under peculiar circumstances than as a 

 diff'erent species. 



