ACALEPHA. 



SIPHONOPHORA. 



Genus DiPHYA. 

 D. elongata, Hyndman. 

 North of Ireland. 

 In the West, at Bundoran, Mrs. Hancock. 



Genus Physalia. 

 P. pclagica, Eschscholtz. 

 South of Ireland, Miss Ball. Two specimens obtained at different 

 times. 



Genus Velella. 

 V. inutica, Lam. 



• Jw^wsnii!/;, 1836.— Groomsport, W. T. 



June (end of), 1840. — Dr. Wm. M'Gee gave me several specimens which 

 he picked up after northern winds on the strand at Portrush ; in an hour 

 he would find about twenty specimens. 



Julji, 1843. — On looking to specimens in spirits' from Larne, Portrush, 

 and Youghal, they seem to be V. limhosa, as I think specimens were 

 picked up by us about Ballyshannon, Bundoran, Sec, on the western 

 coast in July, 1840. 



South of Ireland, Mrs. Mant. 



V. suhemarginata, Thompson. 



Membranous base oblong, slightly cut round the edge, in length 2 

 inches 10. lines, breadth 1 inch 7^ lines: crest almost crescentic in form or 

 obscurely pointed at highest part, thick in substance, with a minute vein- 

 like ramification appearing throughout ; body proper, or skeleton, of a 

 narrow oblong form, rounded at ends, in length 2 inches 4 lines, breadth 

 10 lines. 



Colour when recent according to Professor AUman : " Disc, margin and 

 tentacula fine sky-blue ; sail light blue, neai-ly transparent, margined 

 with delicate violet. Skeleton colourless and transparent." 



This species differs from the ordinary J^clcUa of the Irish coast in its 

 greatly superior size, in the margin of the membranous base being 

 slightly emarginate, in the crest being of a much stronger consistence and 

 of a more rounded outline. 



The s])ecimen here described was given to me by Professor Allman, 

 who saw great abundance of them on the shore of Courtmasherry Harbour 

 (County Cork) after a south-westerly gale late in the autumn of 1838 or 

 1839, but preserved only one. 



