224 REPORT—185/7. 
Species. Observations. 
LAMELLIBRANCHIATA. 
Leda caudata ........-.60.4+ 
Arca tetragona .......0000. 
dead |Rare, in 20 to 25 fathoms off Black Head. 
living |Imbedded in a pebble of black limestone in 50 fathoms, 
off the Copeland Islands. 
dead |Rare, in shell sand from 27 fathoms. 
dead |Rare, with the preceding. 
living |Rare, in 10 to 20 fathoms off Castle Chichester and 
Black Head. : 
dead |Abundant at the same place. Small-sized single valves 
common in shell sand from deep water. 
living |Rare, in 25 fathoms off Black Head. Pearls were 
found in one specimen, of a brown colour like the 
shell. 
dead |Very rare, in shell sand from 27 fathoms. 
living |Rare, in 20 fathoms and deeper. Makes a nest for 
itself like Aians, but often occurs without any. The 
animal swims vigorously through the water. The 
late James Rose Clealand, Esq., of Rathgael House, 
discovered this shell many years ago off the Copeland 
Islands, and was aware of its making a nest. He 
was one of the earliest dredgers in this bay. 
dead |Common in shell sand from deep water. 
dead |A single valve found in the alluvial deposit by Dr. Wm. 
M‘Gee; also recorded as found by the Ordnance 
Survey Collectors in 7 fathoms; but the shell has 
never occurred in any of our late dredgings. 
living |Not common, in about 10 fathoms. 
living |Not uncommon among dead shells from 10 to 12 
fathoms. Sometimes found inside a bivalve shell 
closely fitting to its concavity. 
living |Rare, in 20 fathoms and deeper. 
dead |Single valves not uncommon in shell sand from deep 
water. 
dead |Rare, in shell sand from 27 fathoms. 
living |Not uncommon in some localities. Mr. Hugh Gray, an 
intelligent and experienced dredger and fisher from 
Groomsport, tells me that these shells may be taken 
in great numbers off Ballycormick Point close to the 
shore in 7 to 10 fathoms, and also along the Antrim 
coast and round the Copeland Islands. They are 
seldom sought for exclusively, but taken in the search 
for oysters, as they bring a very small price in the 
market. 
living |Abundant in some places and generally diffused through 
the Bay, at various depths from 7 to 20 fathoms. 
Mr. Gray says they are sometimes taken in great 
numbers in trawling, by their shell fastening upon 
the net. They are also sometimes taken by the 
dredge and brought to market, but the price is so 
low as not to remunerate the fishermen. 
living |Abundant at various depths from near low water mark 
to 25 fathoms. Attains a very large size and a great 
age, if the number of layers of shell be taken as a 
criterion. Those that are taken in this Bay have 
long been esteemed for their good quality under the 
name of Carrickfergus Oysters. The following in- 
formation has been given me by Mr. Hugh Gray. 
There are various beds through the Bay on which 
Oysters may be had. One near the Lighthouse in 
about 1 to 13 fathom. Other beds are from 2 to 8 
fathoms. About four years ago a bed was discovered 
pe salniton it in.chives 
Pectunculus glycimeris ... 
—— ny! ak 
Pinna pectinata............ 
Lima subauriculata ...... 
—— Loscombii..........0. 
Pecten varius......ss.se00s 
Pusio pet ee 
—— tigrinus.......s..eseee 
— ” weet eeeroecenes 
—— Similis .......seeeeeee 
—— maximus ........ ree 
—— opercularis ......... 
Ostrea edulis .....+.ssseeee. 
