121 



ON SOME FORAMINIFERA FROM THE NORTH SEA 

 DREDGED BY THE FISHERIES CRUISER "HUX- 

 LEY" (INTERNATIONAL NORTH SEA INVESTIGA- 

 TIONSENGLAND). 



By Edward Heron-Allen, F.L.S., F.G.S., F.R.M.S., and 

 Arthur Earland, F.R.M.S. 



{Head March 25th, 1913.) 



Plates 10, 11. 



In connexion with our paper on the distribution of Psammo- 

 sphaera and Saccammina in the Northern Area of the North 

 Sea,* Mr. J. 0. Borley, M.A., of the Fisheries Department, 

 Board of Agriculture (England), suggested a continuation of our 

 investigations into the Southern Area. With some reluctance we 

 undertook the work, having little expectation of any tangible 

 results, as Mr. Borley had already, from his personal experience 

 of dredging in these waters, confirmed the generally held belief 

 that rhizopodal life was of very sparing occurrence in the area 

 in question. The shallowness of the sea and the consequently 

 excessive wave action in this area were thought to be factors 

 limiting the development of rhizopodal life, as compared with 

 the conditions in the Scottish North Sea, where the average depth 

 is greater and the disturbance due to the action of waves and 

 currents is consequently less. 



By the courtesy of the officers of the Board the dredgings 

 made by the Fisheries Cruiser " Huxley " were placed at our dis- 

 posal, and, guided by the admirable charts plotted by Mr. Borley 

 to show the distribution of " silt areas " in the North Sea, six 



J 



* "On some Foraminifera from the North Sea, etc., dredged by the 



Fisheries Cruiser " Goldseeker " (International North Sea Investigations 

 Scotland). II. On the distribution of Saccammina sphaerica (M. Sars) and 

 Psa)iimos])haera fusca (Schulze) in the North Sea." Journ. R. Micr. Soc. 

 1913, pp. K26, pis. i.-iv. 



Journ. Q. M. C, Series II. No. 73. 9 



