56 LIVERPOOL BIOLOGICAL SOCIETY. 
bodies, which are apparently lowly developed plants, in 
the surface waters round Puffin Island and at the mouth 
of the Dee. Associated with these are found large quan- 
tities of Noctiluca, the organism which causes a great deal 
of the phosphorescence of the sea round our coasts, but as 
a rule when the gelatinous Alge are present very few of 
the ordinary surface animals such as Copepoda are found 
in the tow-net. 
Besides discovering a large number of species of 
Copepoda, including various rare forms (see his papers in 
Proc. Biol. Soc.), Mr. Thompson has found four species 
new to British seas, and two others which have not been 
found for fifty and thirty years respectively, while the 
following three species are new to science : * 
1° Cyclops puffin, n. sp. (1. C. T.) 
This form was first found in a tow-netting by Mr. 
Thompson, taken from the steamer ‘‘ Gamecock,” during 
the visit of the British Association to Puffin Island, on 
3rd September, 1887. It has since been found in tow-net 
gatherings taken by the keeper round the shores of the 
island. 
2° Lichomolgus sabelle, n. sp. (I. C. T.) 
This is an exceedingly interesting parasitic species, which 
was found by Mr. H. C. Chadwick adhering to the tentacles 
of an Annelid, Sabella penicillus, obtained on the shore 
near Beaumaris. The posterior antenne of the Copepod 
are remarkably modified, and are provided with powerful 
hooks by means of which it attaches itself so firmly to the 
tentacles of the Annelid, that even after being killed and 
preserved in alcohol it is only with difficulty that it can be 
removed from its host. 
* For detailed descriptions and figures, see Mr. Thompson’s paper further 
on in this volume, 
