TUNICATA. 
361 
coast. I doubt its identity with the A. virginea, Mull. Zool. Dan., vol. ii. 
p. 12, t. 49, f. 4, to which it is referred in the work quoted. I have 
frequently dredged it in the North of Ireland, but none were taken in 
Strangford Lough on the 8th and 9th Sept. 1851, when so many 
other species occurred. 
A. communis , Forbes, MSS. 
Clew Bay, E. Forbes, &c. 
Genus Phallusia. 
P. intestinalis , Sav. 
Obtained in Strangford Lough. 
Genus Cynthia. 
C. microcosmus, Sav. 
North, East, and West of Ireland. 
C. claudicans, Sav. 
Not uncommon on oysters and other shell-fish taken in the North-East 
of Ireland. Savigny describes it as common on the oysters brought to 
Paris. 
Genus Clavellina. 
C. Lepadiformis, Sav. 
Strangford Lough. 
Genus Distoma. 
D. rubrum, Sav. 
On Laminaria digitata dredged in Belfast Bay, by Edm. Getty, Esq., 
and kindly sent me. 
This species was communicated by Leach to Savigny, who notices it 
simply as inhabiting the European seas. My specimens were not of so 
lively a colour as represented in Savigny’s work. 
D. variolosum-, Gaert. 
A Distoma, apparently from description (I have not seen any figure) 
of this species, has occurred to me, investing Fucus serratus in Belfast 
Bay ; the colour was always whitish-yellow. Gaertner announced the 
D. variolosum to be found enveloping Fucus palmatus, on the coast of 
England. 
Genus Aplidium. 
A.fallax, Johnst. 
Found by me on the North-East coast, several years since. 
Genus Sidnyum. 
S. turbinatum, Sav. 
I once procured this in Strangford ^ough ; and by Dr. J. L. Drum- 
mond it has since been found in Belfast Bay. 
