LAMELLIBRANCIIIATA. 347 



Two examples of this species were dredged from a depth of about (5 

 fathoms in Strangford Lough, near Portaferry, in August, 1837, by Mr. 

 Hyndman and myself ; and two more were in like manner ])rocured by 

 us in July, 1840, when, with Prof. Edward Forbes and Dr. ]{. Ball, dredg- 

 ing in Killery Bay on the western coast — depth from 3 to 12 fathoms. 



Mr. Barlee includes it in his list of Birterbuy Bay shells dx'edged in 

 1845, and Mr. M'Andrew in his list of species taken in or near Bantry 

 Bay, in 1846. 



April 21, 1848. A valve of it, and one of ^. Boysii, found in a large plaice 

 caught in Belfast Bay by E. Getty, Esq. The stomach and intestines 

 were almost filled with Solen pellucidus. 



There were also a Corhula striata and a Vemis hminosa. 



Genus Cyprina. 

 C. Islandica, Linn. 

 Dublin Bay and Bray, Br. Turt. Commonly found on extensive 

 sandy beaches, as Magilligan, Portmarnock, &c. Dredged in,Belfast and 

 Strangford Loughs, on sand and mud from about 5 to 12 fathoms, living ; 

 dead shells obtained from the greatest depths there — about 2d i'athoms, 

 Mr. Hyndman and W. T. Dredged in Dublin Bay (Dr. Ball and W. T.), 

 and in or near Bantry Bay, by Mr. M'Andrew. Not included in the lists 

 of species from the western coasts, nor was it obtained by our party in 

 1840, by occasional dredging or otherwise, from Bundoran to the South 

 Isles of Arran. 



C. minima, Mont. 



Miltown Malbay, rare, Professor Harvey; Youghal, very rare, Miss 

 M. Ball ; Bantry Bay, Mr. Humphreys, Mr. "Barlee, and Mr.'M'Ancbew ; 

 Birterbuy Bay, Dr. Farran, Mr. Barlee. I have seen a specimen from 

 Erris, Co. ^layo (Miss Bingham), in the collection of ]Mr. ^Varren. 



" Portmarnock, very rare," Turt. Belfast Bay, Mr. Hyndman. 



Genus Mactra. 



M. solidn, Penn. Dublin Bay, Br. Turt. 



Although found on each side of the island, not generally distributed : 

 it is chiefly met Avith thrown ashore on extensive sandy beaches. ^Nlagil- 

 ligan and Portmarnock are the chief localities in which it has occurred 

 to myself; in both of them Sertidaria aryentea is often found parasitic 

 on it. 



Red Bay and Larne, Co. Antrim, W. T. Ballysodare, Co. Sligo (a 

 monstrous var.), Mrs. Hancock. This is the only western habitat, in the 

 MS. catalogues consulted. 



M. elliptica, Br. Portmarnock, W. T. 



Belfast and Strangford Loughs ; dredged in the former from 20 fathoms, 

 shelly sand : specimens dead in both localities. 



M. truneata, Mont. 



Dublin coast, not uncommon, Br. Turt. Found near low-water mark 

 in sand ; brought to Belfast with cockles for sale, and together with 

 Venus aurcd, similarly obtained, commonly called htdy cockle, lied Bay, 

 W. T. Ballysodare ; the remark in reference to this locality under A/. 

 solida equally applies to the present species. 



