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. 
8. Binghami , Turt. 
Two valves found at Bray many years ago by Professor W. H. Harvey. 
Birterbuy Bay, Mr. Barlee. 
Genus Ne^era. 
N. cuspidata , Olivi. 
Cape Clear, 60 fathoms, Mr. M ‘Andrew. 
Genus Pandora. 
P. obtusa, Leach. 
Dredged off Carrickfergus, Sept., 1835, Mr. Hyndman ; subsequently 
by Mr. H. and myself in Strangford Lough. 
Genus Thracia. 
T. convexa, 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. 
Humphreys. Bantry Bay, Mr. M‘Andrew. Also in Strangford Lough, 
and near Belfast, in the cuttings for the new channel, Mr. Hyndman. 
T. pubescens, Pult. 
Belfast Bay. Near Dublin, Mr. Warren. Birterbuy Bay, Mr. Barlee. 
T. declivis, 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. prcetenuis, 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, Illust. Brit. Conch. 2nd edit. Magilli- 
gan is the only northern locality in which the species has yet been met 
with by Mr. 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. 
