ASCIDIOIDA. 
469 
Genus HippothoA. 
II. catenularia, Flem. 
This is very common on Pinna dredged on the coast of Cork, W. T. 
(On shells dredged in 40 fathoms water at Sana Island, West coast of 
Scotland, Mr. Hyndman.) . (On a Pholas dactylus found at Compton 
Bay, Isle of Wight, W. T.) On Buccinum Zetlandicum taken on long 
lines in deep water at Bunowen, Co. Galway, Dr. Farran’s collection. 
January , 1848. — On stone dredged from 40 fathoms off Gobbins, Co. 
Antrim, a fine specimen of Cellepora cervicornis on same stone. 
H. divaricata , Lamx. 
This species is of much less frequent occurrence on the Pinnce I have 
seen from the coast of Cork than H. catenularia , investing the roots of a 
small plant of Laminaria digitata found at Bangor, Co. Down, in 1835 ; 
subsequently obtained on Solen fragilis, and on a stone dredged in Strang- 
ford Lough, W. T. On a Solen dredged in Dalkey Sound, Dublin Bay, 
Dr. Ball, W. T., &c. On various shells [Lima tenera, Pecten obsoletus 
and P. opercular is, Psammobia jlorida, & c.) dredged from a depth of 40 
fathoms, near Sana Island, by Mr. Hyndman. In this locality it is much 
more common than H. catenularia, W. T. Belfast Bay, on shells, Mr. 
Hyndman, 1844. 
H. sica, Couch. 
Found within a very large dead Pinna dredged at the entrance of Belfast 
Bay. Mr. Couch’s description, but not his figure, is applicable to my 
specimen. The striking characters may be noticed. The length of the 
cells is, as described, “ about four times their transverse diameter,” and the 
apertures “ are long and tubular, frequently as long as the cell.” But 
whether this remarkable form may not be due to the security and free- 
dom from injury enjoyed by the Zoophyte within the closed valves of the 
Pinna, I shall not, from the examination of a single specimen, pretend to 
determine. Mr. Couch’s specimens were however procured “ on stones, 
from deep water, common.” But for this character (which probably may 
not be permanent) I should not enumerate- my Hippothoa as distinct from 
II. divaricata, which too is described by Dr. Johnston as sometimes 
having the apertures “ shortly tubular.” 
Genus Anguinaria. 
A. spatulata, Lam. 
This is stated in Mr. Templeton’s catalogue to have been “ found on 
the shore at Carrickfergus, on the sand, Aug., 1811.” — Mag. Nat. Hist., 
ix. p. 466. The specimen labelled under this name in Mr. Templeton’s 
collection is Campanularia syrinya, but having “ Belfast Lough ” simply 
written on it, may not be the one published. Of the A. spatulata I possess 
specimens which invest the stem of Dasya coccinea, collected at Youghal 
by Miss Ball. 
At Freshwater Bay, and Yentnor, in the Isle of Wight, I found it com- 
monly investing various Algae, as Dasya, Plocamium, Sphacelaria scoparia, 
Griffithsia, &c. Foreign specimens appear on Algae in my collection from®' 
Trieste, “ Briaritz, Atlantic Ocean,” and Van Diemen’s Land. W. T. 
