Rayed Animals found in Ireland. 



471 



inch long, and of so brilliant a white, as to render them 

 very conspicuous on the deep green of the conferva. 

 £pon. botryoides. Found on the shore of Belfast Lough, ad- 

 hering to the stem of a plant of JFftcus siliquosus; 

 April, 1806. 



tubulosa. 



foliacea Mont. Found on Conferva rupe'stris, and other 

 marine plants, not uncommonly. 



penicillus Mont. Found on the rocks at White House 

 Point | July, 1811. 



urens Soland. et Ellis., S. tomentosa Mont. Found on 

 various parts of the coast, sometimes forming an irre- 

 gular crust on the rocks, at other times growing on 

 and surrounding the stems of JFucus siliquosus. 



cristata Soland. et Ellis, Mont. On rocks : most probably 

 not distinct from the last. 



pulchella Sower, Found on the shore near Carrickfergus. 



fragilis Mont. Found on various marine substances 

 dredged up in Belfast Lough. 



Doubtful species. One a good deal like Spongia lobata 



Mont., of a dark brown, and covering the stems of a 



piece of JFucus siliquosus. Another, which resembles 



extremely S. prolifera Soland. et Ellis ; but it seemed 



M m 4 



