56 
POLYCHAETA OF THE PORT ERIN DISTRICT. 
By W. Rippet1t, M.A., Fisheries Assistant in the 
Zoological Department, University of Liverpool. 
The Polychaeta of the South end of the Isle of 
Man have never been systematically investigated. Only 
about thirty species from this locality are included in 
the lists published by Harvey Gibson and by Hornell 
in the ‘* Fauna of Liverpool Bay ’’ (Vol. I and Vol. IIT), 
and a few additional records have been noted from time 
to time in the Annual Reports of the Port Erin 
Biological Station. In the present list I have included 
all previous records which could be traced. For about 
thirty of the species collected I can find no previous 
records, and sixteen of these seem to be new also to the 
L.M.B.C. district in general. ‘Three or four of these 
species had been previously observed by the Curator of 
the Biological Station, Mr. H. C. Chadwick, but never 
recorded, and he has kindly allowed me to examine his 
specimens. Sixteen species are the result of three 
dredging expeditions carried out by Prof. Herdman 
in the S.Y. ‘“‘ Ladybird’’ last summer. I have no 
doubt that further work would add considerably to this 
list, as regards both littoral and deep water forms. It 
may be of some interest to note here separately, for 
comparison, the results of the three dredging expeditions 
referred to. | 
Off N. side of Calf Island, August 138th, 1910.— 
tSyllis cornuta, tS. krohnu, tTrypanosyllis zebra, 
Amblyosyllis lineata, *Castalia punctata, Lepidonotus 
squamatus, Halosydna_ gelatinosa, Nereis pelagica, 
Chaetopterus variopedatus, +tDodecaceria concharum, 
Terebella nebulosa, tMelinna cristata, Serpula vermi- 
