. TUNICATA. 
359 
Belfast, in the bottom of a vessel arrived from the tropics in 1846. 
Teredo bipalmulata , Della Chiaie. 
I found numbers of this comparatively small species, together with a 
few of T. navalis , Turt., in the timbers of a ship on her return to Belfast 
from a foreign voyage in 1846. Portions of the timbers were quite honey- 
combed by T. malleolus, so that the vessel had in consequence to undergo 
great repair. Turton described the species from specimens found in 
drifted timber at Torbay. 
Genus Xylophaga. 
Xyl. dorsalis, Turt. 
(W. T. Ann. N. H., vol. v. p. 14). In rotten wood at Ringsend, Dublin 
Bay, Prof. Harvey. In wood from Dublin coast, Mr. Warren, 1847. 
CLASS TUNICATA. 
The Mollusca Tunicata have in Ireland, as in other countries, engaged 
very little attention ; yet if mere outward beauty be any attraction to the 
naturalist, where will he behold it more surpassing than in the compound 
species of this portion of the animal kingdom ? Of every hue — arrayed 
in purple and gold — will he find them even in this “ cold and cloudy 
clime. ” 
Genus Ascidia. 
A. mentula, Miill. 
Belfast Bay ; Roundstone Bay, Co. Galway, adhering to a stone be- 
tween tide-marks, W. T. &c. 
A. rustica, Linn. 
Commonly investing the larger marine plants — found on shells, stones, 
&c. This species is much less common on our shores in the adult than in 
the young state, when, assuming a flattish oval form, and coloured like red 
cornelian, it is seen beautifully studding our larger Fuel. 
Lamarck strangely considered that the A. scabra , Miill., might be iden- 
tical with this ; they certainly have no relation to each other. Nor can I 
believe with him, that the A. patula and A. aspersa, Miill., have any con- 
nexion with A. rustica. — Anim. sans Vert., t. iii. p. 123. 
A. venosa, Miill. 
Obtained by dredging in the Loughs of Strangford and Belfast ; first 
distinguished as an Irish species by Dr. J. L. Drummond. It is remarked 
by Miiller to be common about Christiansand. 
A. prunum , Miill. (?) 
Procured in the same localities as last. 
A. conchilega, Miill. 
Coasts of Antrim and Down, W. T. 
