[ 325 J 
XLI. 
SURVEY OF FISHING GROUNDS, WEST COAST OF IRELAND, 
1890-91. NOTES ON THE HYDROIDA AND POLYZOA. 
By J. EH. DUERDEN, A.R.C. Se. (London); Curator of the 
Museum of the Institute of Jamaica. (Puarz XIV.) 
[Read January 23; Received for publication January 25; Published 
Juty 15, 1895.] 
Tue following communication consists of notes on only the more 
important species of Hydroida and Polyzoa, collected by the 
Survey. A fuller and complete list of the Irish representatives 
of these two groups of the Zoophytes is in preparation, and it is 
intended there to record the abundance of more common forms 
obtained. In the present Paper, the following Hydroids are 
recorded as new to Ireland :— 
Tubiclava cornucopie, Norman. EHudendriuwm insigne, Hincks. 
Perigonimus gelatinosus, n. sp. P. inflatus, n. sp. Campanulina 
panicula, G. O. Sars. Bimeria vestita, T. S. Wright. 
The following Polyzoa are also recorded as being collected by 
the Survey, and new to Ireland :— 
Bicellaria Alderi, Busk. Flustra Barleei, Busk. Triticella pedi- 
cellata, Alder. 
Campanulina panicula, G. O. Sars, is new to the British seas, 
being previously known only from Christiania Sound. Perigonimus 
gelatinosus and P. inflatus are new to science. 
HYDROIDA. 
Tubiclava cornucopie, Norman. 
In the collections obtained from Blacksod Bay I found four 
shells of Astarte sulcata, each with the animal inside, and each 
bearing at its posterior end a colony of numerous individuals of 
this interesting species. The zoophyte takes up this posterior 
