466 ZOOPHYTES. 



■which a river flows. All the finest specimens which have come under my 

 observation were from deep water, on the coasts of Dublin and London- 

 derry. Ballysodare Bay, Co. Sligo, Mrs. Hancock ; Youghal, Miss Ball. 

 At Newcastle, Co. Down, 1851. 



I found it very large, rooted to the sandy gravel within Dundi-um Bay, 

 at the edge of low-water mark, but where left dry at every ebb. 



S. ciqjressina, Linn. 



Belfast Bay; Howth, Co. Dublin, 1835, W. T. 



Ballysodare Bav, Co. Sligo, Mrs. Hancock. 



Clew Bay, 1840, W. T. Portpatrick, Capt. Fayrer, R. N. This and the 

 preceding, with many other smaller species, constituted the most beau- 

 tiful collection of Zoophytes I ever beheld when gracefully depending 

 from and interlacing the spacious trawl-nets of the Howth fishermen as 

 they were hung up to dry ; some specimens of S. cujiressina and S. 

 argentea attained almost two feet in height. 



Genus Thuiaria. 

 T. thuia, Flem. 



Northern coast of L-eland. 

 T. articulata, Ellis. 



Dublin Bay, Dr. Ball, 1839. On examining a number of the clam- 

 shells {Pecten maximus) di'edged near Donaghadee, I found a specimen 

 of T. artindata adherent, and have received a specimen on a Pecten oper- 

 ctilaris from the Isle of Man (E. Forbes), W. T. Numerous specimens 

 from the Bootle coast, near Liverpool, were sent me in 1840, by Mr. 

 Henry Johnston of that town. Near Sana Island, on the western coast of 

 Scotland, Mr. Hyndman dredged it in or about 40 fathoms water in 1841 

 and 1842; in the latter year in same quantities, and the specimens re- 

 markably fine, some of them greatly branched, spreading out to 6 inches, 

 and one example has attained the height of 10^ inches. It is a deep-water 

 and I should think rather local species, but often plentiful where it does 

 occur. The pinnae are alternate in the specimens alluded to. 



Genus Antenndlaria. 

 A. antennina, Flem. 

 This species either in a simple or branched state is found around the 

 coast of Ireland. The simple form attains a great size in Dublin Bay, 

 specimens which I collected there in 1835 having exceeded 12 inches in 

 height. Youghal, Miss Ball. Strangford Lough, W. T. Dredged from 

 about 40 fathoms near Sana Island, Mr. Hyndman. 



(^A. arborescens, Hass.) 

 The branched form is found in Belfast Bay, Killery Bay, Connemara, 

 W. T., and Dublin. It may be worth mention that the branched form is 

 assumed by the species in Belfast Bay ; the simple in the neighbouring 

 Lough Strangford, as exemplified in numerous specimens dredged by 

 my scientific friends and myself in both localities. Both forms have 

 been dredged outside the entrance to Belfast Bay by Mr. Hyndman, 

 May, 1842. 



Genus PlUMULARIA. 

 P. falcata, Lamx. 

 Dublin Bav, Prof. Harvev, 1834. Down and Antrim coasts, \V. T- 



