236 REPORT-——1857. 
TUBULARIA. 
T. indivisa, L. In deep water. Common. 
T. Dumertieri. On Flustra truncata. Belfast Bay. 
T. Larynx. “ Belfast and Strangford Loughs.’— Wm. Thompson. 
Sertulariade. 
THoaA. 
T. halecina, L. Common. Belfast Bay, &c. 
T. Beanii, Johnst. Common. Belfast Bay, &c. Xc. In the male the 
aperture of the vesicle is placed at or near the apex ; in the female near the 
centre of the capsule. 
T. muricata, Ellis. A specimen in the late Wm. Thompson’s Collection, 
marked “ Newcastle, Co. Down.” 
SERTULARIA. 
S. polyzonias, L. Common. 
S. rugosa. Common. 
S. rosacea. Not very common. Belfast Lough. 
S. . Allied to rosacea. Dredged off Bangor, Co. Down. 
S. Allied to rosacea. A specimen dredged by Mr. Hyndman off 
the Gobbins, Co. Antrim. A specimen procured previously by myself in 
Lamlash Bay, Arran. 
S. pumila. Very common. In some cases, at all events, the testes of 
this species, developing parent-cells and spermatozoa, are thrown out ina 
gelatinous envelope from the mouth of the capsule; and the female organs 
forming ova without intermediate “ zooids,” are retained within the ovarian 
vesicle till mature. 
S. Pinaster. Frequent in Belfast Bay, &e. 
S. Tamarisca, L. Belfast Bay, &e. 
S. abietina, L. Common. 
S. filicula, Ellis. Rare. In the late Wm. Thompson’s Collection. 
S. operculata, L. Common. 
S. argentea, Ellis. Common. 
S. cupressina, L. Magilligan Strand. (Templeton.) 
THUIARIA. 
T. Thuia, L. North Coast of Ireland. (Wm. Thompson.) 
T. articulata, Pall. Belfast Lough, Coast of Co. Down. 
ANTENNULARIA. 
A. anitennina, L. Common. 
A. ramosa, L. Common. 
PLUMULARIA. 
P. falcata, L. Common. 
P. cristata, Lam. On Halidrys siliquosa. N. Coast of Ireland. (Wm. 
Thompson.) 
P. pinnata, L. Frequent. 
P. setacea, Ellis. Frequent. 
P. Catharina, Johnst. Belfast Bay. 
P. myriophyllum, L. White Head near Carrickfergus. M‘Calla. 
P. frutescens, Ellis. A specimen dredged off the Gobbins by Mr. 
Hyndman. 
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