SEA-FISHERIES LABORATORY. 169 



December. 



Biddulphia, Coscinodiscus, Ceratium fusus, and G. 

 furca, Noctiluca, Pleurobrachia pileus, Sagitta bipunc- 

 tata, Autolytus prolifer, Tomopteris onisciformis, larval 

 Polychseta, " Mitraria," " Mysis stage " of Crangon, 

 Meganyctiphanes norvegica, Calanus helgolandicus, 

 Pseudocalanus elongatus, Paracalaiius parvus, Centro- 

 pages liamatus, Temora longicornis, Anomalocera 

 patersoni, Acartia clausii, Oithona siinilis, Euterpina 

 acutif rons, Oikopleura, Fish eggs (Plaice). 



Remarks on the Occurrence and 

 Distribution of Organisms. 



Taking the months in order, we find from collections 

 which could only be secured during the second half of 

 January that twelve different organisms were present, and 

 the bulk of these were copepoda. Pseudocalanus, Para- 

 calanus, Centropages and Acartia were the most con- 

 spicuous, only a few of the remaining three were noted. 

 Calanus and the schizopod M eganyctiplianes were limited 

 to bottom gatherings. Sagitta, though present in 

 immense numbers at the bottom, were comparatively scarce 

 near the surface. Observations elsewhere were rather 

 limited in January owing to uncertainty of the weather, 

 and only four inshore areas were dealt with, but these 

 practically take in the coast line from Blackpool to New 

 Quay Head. It is therefore noteworthy that though 

 Diatoms were absent in the coastal waters, representatives 

 of three genera occurred at Port Erin. 



During January arrangements were completed for 

 the Fishery Officers at Pwllheli and New Quay to take 

 tow-nettings in their divisions at least once a fortnight, 

 in addition to the collections made by the steamer when 

 circumstances permitted. The extra gatherings were 



