ACALEPHA. 
SIPHONOPHORA. 
Genus Diphya. 
D. elongata, Hyndman. 
North of Ireland. 
In the West, at Bundoran, Mrs. Hancock. 
Genus Physalia. 
P. pelagica, Eschscholtz. 
South of Ireland, Miss Ball. Two specimens obtained at different 
times. 
Genus Velella. 
V. mutica , Lam. 
August 11 th, 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. 
July , 1843. — On looking to specimens in spirits' 1 from Larne, Portrush, 
and Youghal, they seem to be V. limbosa, as I think specimens were 
picked up by us about Ballyshannon, Bundoran, &c., on the western 
coast in July, 1840. 
South of Ireland, Mrs. Mant. 
V. subemarginata , 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 Allman : “ Disc, margin and 
tentacula fine sky-blue ; sail light blue, nearly transparent, margined 
with delicate violet. Skeleton colourless and transparent.” 
This species differs from the ordinary Velella 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 specimen 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. 
