SEA-EISHER1ES LABORATORY. 149 



On March 20th tow-nettings were taken in territorial 

 waters off New Quay Head, in Carnarvon Bay, near 

 Duddon Buoy, and in the open sea fifteen miles West 

 from the entrance to the Duddon. These throw light on 

 the conditions in the territorial waters at the extreme 

 limits of the district, and also enable a comparison to be 

 made between the open sea and inshore waters at the 

 North end of the area. 



Off New Carnarvon Duddon 15 Miles 



Quay. Bay. Buoy. W. from 



Duddon 



Coscinodiscus — ... r. ... — ... — 



Biddulphia — ... r. ... — ... — 



Sagitta — ... r. ... r. ... r. 



Autolytus r. ... r. ... — ... — 



Crab zoea c. ... — ... r. ... r. 



Nauplii of barnacles c. ... v. ab. ... — ... — 



Ostracod stage of barnacles. . . — ... r. ... — ... — 



Copepoda r. ... r. ... r. ... r. 



Calanus — ... — ... r. ... r. 



Paracalanus — ... — ... r. ... r. 



Temora — ... r. ... r. ... r. 



Acartia r. ... r. ... r. ... r. 



Plaice eggs r. ... — ... r. ... r. 



Flounder eggs — ... — ... r. ... r. 



Cod eggs — ... — ... r. ... r. 



Whiting eggs ab. ... r. ... r. ... r. 



Bib ab. ... — ... r. ... r. 



Rockling ab. ... r. ... r. ... r. 



Diatoms and barnacle larvse were present in 

 Carnarvon Bay only. Copepoda were very scarce at all 

 the stations, but a noticeable difference in variety of 

 species is obvious at the northern area. 'The eggs of 

 whiting and rockling occurred in all the four collections, 

 but were more numerous off New Quay than in the others. 

 Plaice and bib were present at the North and South 

 extremities, cod and flounder at the North end only. The 

 open sea plankton was the same as that found inshore. 



