Vol.. 151. SEPTEMBER 1st, 1918. [No. 10. 



THE 



JOURNAL 



OK 



C O N C H O I. o a Y . 



FOUNDED 1874. 



BEING THE ORGAN OF THE CONC HOLOG ICAL SOCIETY 

 OF GREAT BRTIAIN AND IRELAND. 



PUBLISHED QUARTEHLY. 



Hon. Ei)itof{ : 

 J.R.lkH.TOMLIN.RI.A., 



Lakefoot, 

 Hamilton Rd., Reading. 



Hon. Skckktakv : 



J.W. JACK.SON, F.G.S. 



The Museum, 



The Universitv, 



Manchester. 



Hon. '1'keasukkk: 



C. OLDHAM, F.L.S. 



The Boi.lin, 



Shrubi.anus Road, 



Berkhamsted. 



CONTEITTS. 



page 

 The Pi.sidium Fauna of the Grand Junction Canal in Herts, and 



Bucks. (Plates 7, 8, and 9) — A. W. Stelfox 289 



Descriptions of a New Zebina and a New Liolina (Plate 10) — 



J. R. LE B. ToMi.iN ^ 305 



Descriptions of Thiee New Species of Marginella from South Africa, 



with a Note on M. sutoris Dkr. (Plate 10)— J. R. le B. Tumi.in 306 



Neritina fluviatilis at Chester — \V. H. Davhls 

 Index 



PLATES VII. TO X. 



307 

 308 



LONDON: Dui.au & Co., Ltd., 37, Soho Squake, V\' 1. 

 LEEDS: Tavi.or Bros., Sovereign St. | MANCHESTER: Sherratt & Hughe.s, 



St. Ann's St. 



