332 MOLLUSCA. 



Genus Crania. 

 C. personata, Sow. 



From deep water, off Youghal, Dr. Ball. 



On Pinna ingens, dredged at Cork and Kinsale, Mr, Humpln-eys. 



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



CLASS LAMELLIBRANCHIATA. 



DiVISIOJf MOKOMTAEIA. 



Family OsTREAD^. 



Genus Anomia. 

 A. ephippium, Linn. 



"West of Ireland, Dublin Bay," Turton; on oysters from coasts of 

 Antrim and Down, W. T ; Bantry Bay, Mr. J. D. Humphreys ; Dublin 

 Bay, two specimens, and in great plenty on oysters from Carlingford and 

 Lough Strangford, Brown. It is common and often gregarious on oysters 

 from the northern and eastern coasts generally. Dublin ; Youghal, Dr. 

 R. Ball ; Cork Harbour, Mr. Humphreys ; cU-edged in Clew Bay by our 

 party in 1840. 



A. squamula, Br. Tm't. 



" Not uncommon, adhering to Carlingford oysters," Brown. Dublin 

 Bay, Turt. Catal. Common on the coasts of Londonderry, Antrim, and 

 Down, about the roots of tangle [Laminaria digitata), ike. Youghal, Dr. 

 K. Ball ; Cork Harbour, Mr. Humphreys, who remarks in the Fauna of 

 Cork, " frequent on oysters, lobsters, and other marine bodies." Dredged 

 in CleAV, Clifden, and Killery Bays (3 — 12 fathoms, bottom vai'ious) by 

 our party in 1840. 



A. undulata, Mont. 



Strangford Lough, Brown. Dublin Bay, Turt. Catal. Specimen thence 

 in Dr. K. Ball's collection, considered A. and. by E. F., 1847, a scarce 

 form or species. Such specimens as have come under my notice in a living 

 state, were in sheltered sites ; one, and a very large individual, adherent 

 to the inside of a quart bottle found in the stomach of a cod-fish ! Carl- 

 ingford, Mr. Hyndman. Youghal, Miss M. Ball. Adhering to Pimice 

 taken in Cork Harbour, Mr. Humphreys. 



A. punctata, Turt. (W. T., Ann. N. H., vol. v. p. 13.) 

 Youghal, Dr. R. Ball. 



A. cylindrica, Turt. 



Dublin Bay, Turt. Catal. Occasionally found about the roots of 

 Laminaria diqitnta on the North and North-East coast, Mr. Hyndman, 

 W. T. Youghal, Dr. R. Ball. 



A. acideata, Mont. 



" In sand from Portmarnock, not uncommon," Brown. Dublin Bay, 

 Turt. Catal. Not uncommon on the North and North-East coasts, chiefly 

 about the roots of Laminaria diijitata. Youghal, Dr. R. Ball. 



