RECORD OF ADDITIONAL HYDROIDA FROM THE I.0.M. 95 
argentea, which is abundant (in the young state) in the 
N.E. is represented in the N.W. by only two or three 
small fragments, and only ‘several very small pieces’’ 
were obtained by the L.M.B.C. in the 8. Of the rare 
Thuiaria articulata I have found several good specimens 
in the N.W., none on the other side. I have also dredged 
fine specimens of Aglaophema myriophyllum in plenty off 
the Dhoon, but one small colony only has appeared in the 
N.W. Neither of the two last-named species has, I 
believe, been reported from the Isle of Man since the time 
of Forbes. 
As asummary of my results up to the present time I 
have the gratification to record 12 Hydroida not hitherto 
reported from the Isle of Man, of which 5 are new to the 
district of Liverpool Bay. They are as follows :— 
New to Isle of Man only. 
Tubularia coronata, Abildg. From the N.W. 
Obelia geniculata, Linn. From the N.W. and N.E. 
Obelia longissuma, Pallas. From the N.W. 
Diphasia attenuata, Hincks. From the N.W. &N.E. 
Diphasia pinaster, Ellis and Sol. From the N.W. 
Diphasia tamarisca, Linn. From the N.W. 
Sertularia cupressina, Linn. From the N.W. 
New to the Isle of Man and L.M.B.C. district. 
Tubularia attenuata, Allman. From the N.W. 
Campanularia (?) raridentata, Alder. From the N.W. 
Halecium muricatum, Ellis and Sol. From the N.E. 
Halecowm tenellum, Hincks. From the N.E. 
Sertularella tenella, Alder. From the N.W. and 
N.E. (abundant). 
