THE MARINE MOLLUSCA OF THE YORKSHIRE COAST 

 AND THE DOGGER BANK. 



By J. A. IIARGREAYES. 



(Read before the Society, November loth, 1909). 



The following is an annotated list of the marine moUusca of the 

 coast of Yorkshire and the Dogger Bank. 



"The Dogger Bank occupies the centre of the North Sea, is 200 

 miles in length and from 30 to 50 miles broad, commencing about 60 

 miles from the Yorkshire coast, and intermediate between the shores 

 of England and Denmark. Its average depth is 15 fathoms, though 

 in a few places it is only seven, with pits of deep water here and there, 

 the most notable of which are the Great and Little Silver Pits, and 

 the Well Pit. The Bank gradually slopes into deeper water ranging 

 from 40 to 50 fathoms, and it is here that the rarer species of Fnsi, 

 Sic, are obtained, the fauna of the Bank itself corresponding to that 

 found in shallow water near the shore " (Leckenby). 



I have consulted the following works, the abbreviations under 

 which they are subsequently referred to being given in brackets: — 

 "British Mollusca," Forbes & Hanley, 4 vols., 1853 (F. & H.). 

 "British Conchology," J. G. Jeffreys, 5 vols., 1862-69 (Jeff.). 

 " British Association Report," 1875 (Brady). 

 "Natural History Transactions of Northumberland and Durham," 



1867 (Brady). 

 " Additions to British Conchology," by J. T. Marshall, six parts 

 published in \\\^ Journal of Conchology, 1893-1902, and one part 

 for private circulation, 1903 (Marshall). 

 "Notes on the British species of Biucinuvi, Fiisns^' &c., by J. T. 



MaxshdiW, Journal of Malacology, vol. 8, 1902, (Marshall). 

 " Revision of British Mollusca," Canon Norman, Annals er' J\Tag. of 



Nat. History, 1890-99 (Norman). 

 "Report of the Cleveland Naturalists' Field Club," 1896-97-98 

 (D.F., D. Ferguson, author of " Natural History of Redcar and 

 Neighbourhood," i860; J.H., late Rev. J. Hawell, Ingleby 

 Greenhow; M.L.T., M. L. Thompson). 

 " Marine Mollusca of Sandsend," by Miss M. V. Lebour, T/ie 



Naturalist, May, 1902 (M.V.L.). 

 " North Sea Dredging," by Leckenby and Marshall, Ann. c^" Mag. 



of Nat. History, December, 1875 (I- ^ M.). 

 " Dredging on the Dogger Bank," by G. H. Parke, The Naturalist, 



December, 1864 (Parke). 

 "List of Scarborough Mollusca," by Bean, in " Theakston's Guide 

 to Scarborough," 1866 ed. (Bean). 



