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BELFAST DREDGING COMMITTEE. 
221 
Mo .tuusca of BetrastT Bay. 
Species. 
LAMELLIBRANCHIATA. 
Teredo Norvagica .........| dead 
Pholas dactylus............| living 
——  PaIVa......000. dead 
—— crispata ........+...+.| living 
——_ 3y_— eevevesseeeesee] Gead 
—— candida........ seoeeee| living 
Saxicava rugosa....... ++ees| living 
— arctica ......... auesté living 
Mya truncata........s.e000 living 
—— ns wvessveeesereee| Cead 
—— arenaria...............| living 
Corbula nucleus............| living 
Pandora obtusa .........++.| living 
Lyonsia Norvegica.........| living 
Thracia phaseolina.........| dead 
villosiuscula ..... -..-| dead 
pubescens ............ dead 
—— CONVEXA....00..00000-| ead 
—— distorta ..........0004+ dead 
Cochlodesma pretenue...| dead 
Solen marginatus .........| dead 
—siliqua ...............| living 
—— NSIS .........+++......| living 
—— pellucidus............| living 
&dead. 
Solecurtus coarctatus dead 
Psammobia Ferroensis ...| dead 
——-tellinella ......... .-| dead 
Tellina crassa...............| dead 
— incarnata ............ dead 
—— tENUIS «0... eee eee living 
— === 0/07 dead 
— solidula ...............| living 
Syndosmya alba............ living 
— Spiiaccidos see's) MCLCHOe 
Observations. 
Not known as living in the Bay. Found frequently in 
drift wood dug up in making sewers in Belfast, and in 
the excavations for the Harbour improvements. 
In variegated marl between high and low water near 
Carrickfergus: also on the County Down shore. 
In submerged peat at the mouth of Conn’s water, at the 
upper end of the Bay on the County Down side, by 
the late Dr. Drummond; at White House Point on 
the Antrim side by the Ordnance Survey Collectors. 
In submerged peat at extreme low water in Bangor 
Harbour, County Down, and in other places. 
In the alluvial deposit at the head of the Bay, of very 
large size. 
On both sides of the Bay ; between tide marks common. 
Common from low water mark to 25 fathoms. 
Not uncommon in the deeper water. 
Littoral, in mud. 
At various depths to 25 fathoms. 
the alluvial deposit. 
Littoral in sand and mud. 
In mud at 15 to 20 fathoms ; not abundant. 
Off Castle Chichester and Black Head, in 15 to 20 
fathoms ; rare. 
On both sides of the Bay, in from 8 to 12 fathoms. 
In the deeper water, scarce. 
Off Groomsport, Edward Waller, Esq. 
Recorded in Mr. Thompson’s Report. 
Not uncommon in the alluvial deposit cut through in 
forming the new Channel, at a depth of 10 to 15 feet. 
Not known to be now living in the Bay; two spe- 
cimens have been dredged off Black Head, broken, 
but with ligament fresh, so that it is probably still 
living; its habit of burrowing places it out of reach 
of the dredge. 
Tn limestone near Belfast, Mr. Grainger. 
In 20 fathoms off Black Head, valves united, rare. 
Recorded by Brown as found in the Bay. 
Off Bangor, County Down, and in alluvial deposits at 
the Quays. 
On both sides of the Bay. Very large and fine speci- 
mens from Ballyhome Bay, Mrs. Clealand. 
On both sides of the Bay, and of very large size at the 
same place with the last. 
Not uncommon in 6 to 20 fathoms. 
Of very large size in 
Rare, in 20 fathoms off Black Head; valves fresh and 
united. f 
Rare, off Castle Chichester and Bangor, with valves 
united. In the alluvial deposits. 
Rare, off Castle Chichester. 
Rare, in 10 fathoms off Castle Chichester, and also off 
Groomsport. 
Very rare, off Castle Chichester. 
Not uncommon on sandy shores, both sides of the Bay. 
Rare, off Bangor. 
Common in mud between tide marks. 
Rare in 8 to 10 fathoms. 
In the alluvium near Belfast. 
