94 
RECORD of Additional HYDROIDA from the 
ISLE OF MAN. 
By G. W. Woop, F.I.C. 
[Read April 8th, 1892.] 
I HAVE much pleasure in submitting to the Biological 
Society a list of some Hydroida from the Isle of Man, 
which have not been previously recorded.* I have made 
numerous dredgings there during the last few years, 
chiefly in moderately deep water (20—30 fathoms). The 
forms belonging to other groups which I have preserved 
may be reported upon on some future occasion. 
Hydroida have also been procured for me by some of 
the Manx trawlers, and parcels continue to be forwarded 
from time to time, so that the present list is likely to be 
extended. I have confined my attention to the fauna of 
the N.W. and N.E. coasts, the south end of the Island 
having already been investigated during the L.M.B.C. 
dredgings, and those of Prof. Herdman, as recorded in the 
first volume of the Fauna of Liverpool Bay. 
Although the area represented by the Isle of Man is 
comparatively small, the habitats of some of the species 
are somewhat sharply defined. Some of the species found 
by the L.M.B.C. in the 8. and other species reported from 
the N. are altogether absent from the N.E. and N.W. and 
vice versa. Diphasia pinaster, a species not hitherto 
reported from the N. or §., is quite common in the N.W. 
but absent againin the N.EK. Another species, Sertwlaria 
* [The Report upon the Hydroida of the L.M.B.C. District will be found 
in Vol. I. of the ‘‘ Fauna of Liverpool Bay,” p. 95.—Ep.] 
