TUNICATA. 361 



coast. I doubt its identity with the A. viryinea, Miill. 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. 18 jl, when so many 

 other species occurred. 



A. communis, Forbes, MSS. 



Clew Bay, E. Forbes, &c. 



Geniis Phallusia. 

 P. intestinalis, Sav. 

 Obtained in Strangford Lough. 



Genus Cynthia. 

 C microcosmiis, 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. Lepadifnrmis, 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 P^uropean 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 2Mhnatus, on the coast of 

 England. 



Genus APLIDIUM. 

 A.fallax, Johnst. 

 Found by me on the North-East coast, several years since. 



Genus Sidnyum. 

 S. turhinatum, Sav. 

 I once procured this in Strangford Lough ; and by Dr. J. L. Drum- 

 mond it has since been found in Belfast Bay. 



