MARINE BIOLOGICAL STATION AT PORT ERIN. 41 



Caligus zei, Norman and T. Scott, several specimens 

 of this copepod parasite were found attached to the skin 

 of a " John Dory " taken in the trawl of the " John Fell " 

 while fishing off New Quay Head, on June 16th, 1906. 

 The only other known specimens of this parasite were 

 taken forty years ago. 



Lernceenicus encrasicoli (Turton), another copepod 

 parasite. A large catch of sprats were taken off Blackpool 

 by the " John Fell " on February 19th, 1906, and part of 

 it was landed at Piel. On going over the fish carefully, 

 one sprat with two parasites attached, and another with 

 one, were found. The parasites were embedded in the 

 tissues at the anterior end of the dorsal fin. On dissecting 

 one out, it was found that the head had penetrated to the 

 visceral cavity. 



Sjihceronella paradoxa, H. J. Hansen, one specimen 

 of this curious little parasite, belonging to the Chonios- 

 tomatidae, was found in the incubatory pouch of the 

 amphipod Bathyporeia pelagica, taken in a bottom tow- 

 netting near Conway, on February 5th, 1906. Represen- 

 tatives of the family are not uncommon on the East coast 

 of Scotland, but this is the first member taken in the 

 Irish Sea. 



Bio-Chemical Work. 



During the Easter vacation Dr. H. E. Roaf continued 

 his experimental work commenced with Professor Moore 

 the previous year. His object was to study the bio- 

 chemistry of the digestive processes in higher invertebrata, 

 and the animals made use of were Cancer pagurus, 

 Carcinus moenas, Patella vulgata, Fusus antiquus, Purpura 

 lapillus and Littorina littorea. In all these Crustacea and 

 Molluscs proteolytic, amylolytic and inverting ferments 

 were found, as well as a ferment which hydrolysed methyl 



