354 MOLLUSCA. 



rarest on the West coast. Birterbuy Bay (Dr. Farran) is the only locality 

 in my lists for it in that quarter. Strangford Lough is the best locality 

 known to me for this species, in some parts of which it is common on 

 muddy ground, at a depth of about from 4 to 10 fathoms. Kingstown 

 Harbour, R. Ball. 



Genus Sph^nia. 

 S. Binghami, Turt. 



Two valves found at Bray many years ago by Professor W. H. Harvey. 

 Birterbuy Bay, Mr. Barlee. 



Genus Ne.era. 

 N. cusjjidata, Olivi. 



Cape Clear, 60 fathoms, Mr. M'Andrew. 



Genus Pandoka. 

 P. ohtusa, Leach. 



Dredged off Carrickfergus, Sept., 1835, Mr. Hyndman ; subsequently 

 by Mr. H. and myself in Strangford Lough. 



Genus Thracia. 

 T. co7ivexa, Wood. 



Three specimens were got by Mr, Warren off the Dublin coast, with 

 the animal in a fresh state. They were full-grown. Cork Harbour, Mr. 

 Humphi-eys. Ban try Bay, Mr. M'Andrew. Also in Strangford Lough, 

 and near Belfast, in the cuttings for the ncAv channel, Mr. Hyndman. 



T, 2)uhescens, Pult. 

 Belfast Bay. Near Dublin, Mr. Warren. Birterbuy Bay, Mr. Barlee. 



T. cleclivis, Thor. 



Belfast and Strangford. Dublin, Mr. Warren. Bantry Bay, Mr. 

 M'Andrew. Cork, Mr. Humphreys. 



T. distorta, Mont. 



Very rare. Youghal, in limestone, Dr. Ball. Cork Harbour, Mr. 

 Humphreys. Dublin Bay and Bray, Prof. W. H. Harvey. 1847, 1 saw it 

 from Portmarnock in Mr. Warren's collection. In limestone near Belfast, 

 with saxicava, Mr. Grainger. 



Genus Anatina. 

 A. pi'eefenuis, Turt. 



Dublin coast, O'Kelly ; Turton. " Belfast Lough, rare," Brown. The 

 latter locality probably a mistake. Portmarnock is the only Irish locality 

 named in the author's latest work, lUust. Brit. Conch. 2nd edit. Magilli- 

 gan is the only northern locality in which the species has yet been met 

 with by IVIi'. Hyndman or myself ; it is thrown ashore quite fresh there. 

 On the Dublin sandy coasts I have likewise found it. Bantry, Miss M. 

 Ball. Cork Harbour, rare, Mr. Humphreys. Rather a scarce species. 



Genus Mya. 

 M. truncata, Linn. 



A common species, littoral on sandy coasts. 



