Vol.. 15]. 



MAY 1st, 1918. 



[No. 9. 



TIIK 



JOURNAL 



CONCHO LOGY. 



rOUNUED 1874. 



BEING THE ORGAN OF THE CONCHOLOGICAL SOCIETY 

 OF GREAT BRITAIN AND IRELAND. 



PUBUSHED QUARTERLY. 



floN. EmTOR : 

 J.R.i.eB.TOMLIN.M.A., 

 Hamilton Rd., Reading- 



Hon. Sechetanv: 



J. W. JACKSON, F.G.S. 



The Museum, 



The University, 



Manchester. 



Hon. Tkeasuhkr: 



C. OLDHAM, F.L.S. 



The Boi.lin, 



Shrublanus Road, 



Berkhamsted. 



COITTEITTS. 



Obituary Notice: "E. D. Marquand— J. R. le B. Tomlin 



Limax cinereoniger, its variation in Savernake Forest and Description 



of a New Variety — W. D. Roebuck 

 On the Pisidium nitidum and P. pusillum of Jenyns: A Reply — B. B. 



Woodward 



Otina Otis Turton at S. Mary's, Scilly — J. C. Melvili, 



The Clausium in Alopia, a sub-genus of Clausilia (plates 5 and 6)— 



J. D. Dean 



Researches into the Hereditary Characters of some of our British 



Mollusca, part ii. — A. W. Stelkox 



Discovery of Limax tenellus in the New Forest — W. D. Roebuck ... 



Paludestrina jenkinsi Smith in Bucks. — J.E.Cooper 



Census Authentications — The Hon. Recorder 



Proceedings: Oct. 13, 1917 (concluded); Nov. 14, 1917; Dec. 12, 



1917; Jan. 9, 1918; Feb. 13, 1918; March 13, 1918; April 



10, 1918 



Note on var. fascialba Taylor of H. nemoralis — J. E. A. Jollifke ... 



Notes on Wiltshire Mollusca— C. P. HuR-ST ..'. ... 



Editorial Notes 



Helix pisana Mull, at Swansea — H. E. Quick... 



Testacellamaugei var. viridans Mor. at Porlock Weir— N. G. Hauden 



L. glabra var. albida nov. iind PI. vortex var. albida nov. — ^J. W. 



Jackson 



Thread-Spinning in Physa heterostropha — J. W. Jackson 



PLATES V. AND VI. 



FACE 



259 



260 

 261 



262 



275 



276 



279 



284 

 285 

 286 

 288 



288 



288 

 288 



LONDON: Dui.au & Co.. Ltd., 37, Soho SguAKE, W, i. 

 LEEDS: Tavi OK Bkos., Sovereign St. | MANCHESTER: Sherratt & Hughes, 



St. Ann's St. 



SP£:CIli.IL. EXIMIBIXS. 



Thersites 

 Maeroeeramus 



May 8th, 1918 

 June 12th, 1918 



