LAMELLIBRAN CHIATA. 
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M. arenaria, Linn. 
Plentiful in localities on every side the coast. Frequently buried in 
the soft sand of Belfast Bay, between tide-marks. Dug out and eaten by 
some of the poorer people here, as it is on various parts of the coast. 
Ballyshannon, Co. Donegal ; Sligo coast, Killery Bay, W. T., &c. 
Genus Lyonsia. 
L. Norvegica, Chem. 
Two valves found by Miss Hutchins in Bantry Bay, in Dr. Taylor’s 
collection, Brown. 
A very rare species, though widely distributed. Dredged in Belfast 
and Strangford Loughs, in from 6 to 1 2 fathoms, among sea-weed. 
Dublin coast, Dr. Ball, &c. Birterbuy Bay, Dr. Farran, Mr. Barlee. 
A single valve, Cork, Mr. Humphreys. Dredged in or near Bantry Bay, 
Mr. M‘Andrew. 
Genus Lutraria. 
L. vulgaris, Flem. 
Like Mya arenaria, plentiful in localities on all sides the coast ; and 
in those of a nature similar to those where that species occurs. Used as 
edging to garden plots by the cottagers at Bundoran, where it is abundant, 
Mrs. Hancock. 
L. hians, Flem. 
About Cove, rare, Turt. Catal. Magilligan, Mr. Hyndman. Bantry 
Bay, Mr. Humphreys. Found in a recent deposit of blue clay excavated 
for a dock at Belfast, Dr. Wm. M‘Gee. 1847, I saw specimens from 
Dublin Bay in Mr. Warren’s collection. 
L. compressa, Lam. 
Dublin coast, Br. This should not perhaps have been noted in the 
Belfast Bay column, as, though not uncommon in a dead state, it has not 
been found alive to my knowledge.* Dundalk and Clontarf (Dublin 
Bay), recently dead, and in situ between high and low water mark, Mr. 
Hyndman. Youghal, Dr. Ball. Mud-banks, Cork Harbour, common, 
Mr. Humphreys. 
Genus Psammobia. 
P. Tellinella, Lam. 
Ireland, Turt. Rather rare, except perhaps at Bantry Bay, whence 
specimens have been supplied me by Dr. Ball. Dredged very rarely in 
Belfast and Strangford Loughs, from about 10 fathoms, sandy ground. 
Dublin coast, Mr. Hyndman and W. T. Mr. Warren, in a letter dated 
February 3rd, 1847, remarked, “A few days ago I found at Portmarnock 
147 good living specimens of Psam. jlorida, though I had seldom obtained 
more than a single specimen there at one time before.” Birterbuy Bay, 
Dr. Farran, Mr. Barlee. The latter gentleman dredged near the South 
Isles of Arran the var. with about £ of each valve striated. 
P. Ferroensis, Chemn. 
Dublin coast, Br. Turt. Commonly thrown ashore on most sandy 
* Possibly it may only have to be dug for to be so obtained. It is found on 
the muddy banks of the river Lagan, nearly as far up as the tide flows. 
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