404 REPORT OF THE COUNCIL 



quarterly cruises in the English Channel, whilst regular samples at 

 weekly and fortnightly intervals have been obtained off Plymouth, 

 between Plymouth and the Channel Islands, and from different light- 

 ships ofi' the English and Irish coasts. The principal species found in 

 these samples have been identified, and tables showing the results for 

 the stations worked on the Channel cruises have been published in the 

 Bulletin of the International Council for the study of the sea. 



The Plankton observations in 1904-5 have confirmed the conclusion 

 arrived at from the work of the preceding year, that the proportion of 

 oceanic to neritic species decreases in the English Channel very 

 regularly from west to east. At the same time it has been found that 

 the absolute number of oceanic as well as the absolute number of 

 neritic species is highest in the western basin of the Channel, 

 decreasing both towards the open ocean in the west and towards the 

 meridian of the Isle of Wight in the east. It is suggested that this 

 rise in the number of species, in a region where newly-arrived Atlantic 

 water meets water which has been lying over a shallow bottom and has 

 received the outflow of rivers, may be due to an increase of soluble 

 food-substances which are necessary for the development of various 

 organisms. 



Published Memoirs. 



The following papers, either wholly or in part the outcome of work 

 done at the Laboratory, have been published elsewhere than in the 

 Journal of the Association : — 



AiiiiEN, E. J. Tht Anatomy of Poicilochmtus. Quart. Journ. Micr. Sci., vol. 

 xlviii., 11)04, PI). 79-152. 



Dannevig, H. C. On the First Successful Experiment vith Importation of European 

 Sea Fishes to Ansircdian Waters. Fisheries of New South Wales. Annual Report 

 for 1902. II. 



MiNCHiN, E. A. The Characters and Synonymy of the British Spiecies of Sponges of 

 the Genus Leccosolknia. Proceed. Zool. Soc, Loud. 1904, vol ii., pp. 349-96. 



Eliot, Sir C. N. E. On the Doris planata of Alder and Hancock. Proceed. 

 Malacol. Soc, vol. vi., 1904, j.p. 180, 181. 



Eliot, Sir C. N. E. Notes on tmo Rare British Nndibranchs, Hero Formosa rar. 

 ARBOREBCKNs Kvd Stauropohis maculata. Proceed. Malacol. Soc, vol. vi., 1905, 

 pp. 239-43. 



Handles, W. 1>. Some Observations on the Anatomy and Affinities of the Trochidae, 

 Quart. Journ. Micr. Sci., vol. xlviii., 1904, pp. 33-78 



Woodcock, H. M. On Cystobia irregularis {Minch.) and Allied " Neogamous" 

 Gregarines. Arch. Zool. Expdr et Gen. Notes et Revue, 1904, No. 8. 



