172 
7he Irish Naturalist. 
July, 
Galium cmciahun still holds ou to its original station, and is growing in 
quantity and splendid condition at short intervals all round the side of 
the rath, for which place it seems to have a special liking, as I could not 
find it in any of the adjacent hedge banks. 
N. CarroTheRS. 
Belfast. 
ZOOLOGY. 
New Marine Mollusca for Co. Dublin. 
Examination of some samples of shell-sand gathered in February last 
at various .points on the Dublin coast has had the unexpected result of 
adding four species to the well-explored molluscau fauna of the county. 
None of the four species now recorded are mentioned in Mr. A. R. 
Nichols' " List of the Marine Mollusca of Ireland " as occurring any- 
where in his Marine Province No. II., which stretches from St. John's 
Point in Down to Carnsore Point in Wexford, and embraces two-thirds 
of the east coast of Ireland. 
Odostomia rissoides, Hanley. — A single specimen occurred in shell-sand 
from the North Bull. This I was inclined to name 0. eulimoides of Hanley, 
but on sending the shell to Mr. Nichols he suggested 0. rissoides, which 
name was confirmed by Dr. Chaster. The species is now on record for 
all six of the Irish marine provinces. 
Philine priiinosa (Clark). — A single well-grown, and almost unworn 
specimen in shell-sand from the North Bull. This is apparently a 
very rare species in Ireland, but has perhaps been overlooked on 
account of its small size. Hitherto recorded only from the south and 
west of the island. My naming is confirmed by Dr. Chaster. 
Cerithiopsis tiibercidaris (Montagu). — Two specimens of this species, 
which has not hitherto been recorded for Marine Province II., were 
gathered on the North Bull in February last. It is no doubt often con- 
founded with Cerithiuin rdiculatuni, and is probably not uncommon in 
east Ireland. 
Mytilus phaseolinus (Philippi). — A very juvenile state of this species, 
scarce one-twentieth of an inch in the longer diameter, turned up 
frequently in February last from the following stations — The north spit 
of Portrane peninsula, Portmacomoge Point, the South Bull, and the 
North Bull — no less than twenty-four specimens occurring in siftings 
from the last station. Failing to identify the specimens with any confi- 
dence, I sent them to Dr. Chaster, with a suggestion that they might be 
an immature Area, but he named them without hesitation M. phaseolimis. 
I am indebted to Dr. G. W. Chaster and to Mr. A. R. Nichols for kind 
assistance in the naming of these interesting species. The nomenclature 
used here is that of Jeffreys' "British Couchology." 
N. COI,GAN. 
Sandycove, Co. Dublin. 
