PTEROPODA. 
271 
Genus Rossia. 
R. Owenii, Ball. 
Dublin Bay, Dr. Ball. 
R. Jacobi, Ball. 
Belfast Bay, Mr. J. Grainger. Dublin Bay, Dr. Jacob. 
Genus Spirula. 
S. Australis, Flem. 
“ White House, Belfast Bay, Portrush. Templeton, MSS.” Magilligan, 
Mr. Hyndman ; Youghal, Dr. Ball ; Clare, Professor Harvey. 
CLASS PTEROPODA. 
Genus Hyal^ea. 
II. trispinosa, Cuv. 
An individual of this species, and the first Pteropod, I believe, that 
has occurred on the British shores, was found by Dr. R. Ball on the coast 
near Youghal, some years ago. At the same time Spirulce and Ianthince 
occurred, but none of them in a living state. 
Genus Peracle. 
P. Fleminyii, Forbes. 
In shell-sand, Bundoran, Mrs. Handcock. Dredged off Mizen Head, 
Mr. M‘Andrew. South Island of Arran, Mr. Barlee. 
CLASS GASTEROPODA. 
ORDER NUCLEOBRANCHIATA. 
Genus SAGITTA.* 
S. Britannica, Forbes. 
Coast of Cork, Professor Allman. 
Mollusca Nudibranchia, Cuv. 
Genus Doris. 
D. tuberculata, Cuv. 
In the late Mr. Templeton’s Journal, “ Doris Argo, Penn., Brit. Zook, p. 
22,” is mentioned as twice found by him in 1812, on the shore towards 
the entrance of Belfast Bay ; and Dr. J. L. Drummond informs me, that 
about the same time he procured a Doris here, equalling a hen’s egg in 
size, and which he considered to be of this species. At Youghal (County 
Cork) it has been taken by Dr. Ball, and to this gentleman and myself 
has occurred at the island of Ireland’s Eye, off the Dublin coast. Pro- 
fessor Allman has favoured me with specimens procured by him at 
Courtmasherry harbour, County of Cork, where he states that the species 
is common. The Irish specimens I have seen were generally straw-co- 
Now separated from Mollusca. — E d. 
