DurrpEen— The Hydroids of the Irish Coast. 413 
Campanularia raridentata, Alder. 
Glandore Harbour, growing on Bougainvillia ramosa (1898) ; 
Ballyeotton, on worm-tubes; Blacksod Bay, on Sertularella 
polyzonias (R. D.S8.). 
Gonothyreea Loveni, Allman. 
Although not recorded in the Dublin List, I have found this 
interesting species in great abundance, practically covering all the 
Fucus for a considerable area, under the wooden bridge leading to 
the North Bull, Dublin Bay. All stages in the development of the 
sporosacs could be followed. At this spot I have likewise obtained 
the variety mentioned by Professor Allman as forming “ long, lax 
tufts, in some cases three or four inches long.’”’ Abundant on 
Fucus trom Lough Atalia (R. D.8.); Dublin Bay (1886); Carrick- 
fergus; Monkstown, near Cork (Wyville Thomson). 
Gonothyrea gracilis, Sars. 
Dredged by Mr. G. 8. Brady in Birterbuy Bay, Connemara, 
growing on the tests of Ascidians and other objects (1864). 
Gonothyreea hyalina, Hincks. 
On Hydralimania falcata, from Port Stewart, showing the 
gonothecea (R. D.S.); on the shore between Laytown and the 
mouth of the Boyne (1894 a). 
IT. CAMPANULINIDZ. 
Campanulina turrita, Hincks. 
On Zostera, Holywood, Belfast Lough (Wyville Thomson) ; 
Blacksod Bay (R. D. 8.); Bantry Bay; Dalkey ; Bundoran; 
Dursey Island; Roundstone, Connemara (1895). 
Campanulina panicula, G. O. Sars. 
On two Fusus shells trawled 40 miles off Achill Head ; depth 
220 fathoms (1895). 
Opercularella lacerata, Johnston. 
North of Ireland (Wyville Thomson). 
