﻿Vol. 
  XII. 
  Part 
  VI. 
  

  

  NOVEMBER, 
  1917. 
  

  

  Price 
  7s. 
  6d. 
  net. 
  

  

  PROCEEDINGS 
  

  

  OF 
  THE 
  

  

  MALACOLOGICAL 
  SOCIETY 
  

  

  OF 
  LONDON. 
  

  

  EDITED 
  BY 
  

  

  B. 
  B. 
  WOODWARD, 
  F.L.S., 
  ETC., 
  

  

  Under 
  the 
  di7-ection 
  of 
  the 
  Publication 
  Committee. 
  

  

  AUTHORS 
  ALONE 
  ARE 
  RESPONSIBLE 
  FOR 
  THE 
  STATEMENTS 
  IN 
  THEIR 
  KESPECTITE 
  

  

  PAPERS. 
  

  

  GOiTTIKllsrTS. 
  

  

  PROCEEDrNliS 
  : 
  — 
  PAGE 
  

  

  Ordinary 
  Meetings 
  : 
  

  

  May 
  11th, 
  1917 
  307 
  

  

  June 
  8th 
  307 
  

  

  Notes 
  : 
  — 
  

  

  Dipterous 
  Fly 
  Larva 
  feeding 
  on 
  

  

  Helicella 
  itala. 
  By 
  E. 
  W. 
  

  

  BowELL, 
  M.R.C.S 
  308 
  

  

  On 
  Crioceras 
  bowerbankii. 
  By 
  

  

  Col. 
  L. 
  W. 
  WiLMER 
  308 
  

  

  On 
  Volvaria 
  lubrica. 
  By 
  J. 
  R. 
  

  

  LeB. 
  TOMLIN, 
  F.E.S 
  308 
  

  

  Papers 
  : 
  — 
  

  

  Presidential 
  Address 
  : 
  A 
  Syste- 
  

   matic 
  List 
  of 
  the 
  Marginel- 
  

   lidfE. 
  By 
  J. 
  R. 
  Le 
  B. 
  

   T0Mi.m,F.E.S. 
  (Concluded.) 
  267 
  

  

  Notes 
  on 
  Donova,n^s 
  Naturalist's 
  

   Repository. 
  By 
  A. 
  Reynell 
  309 
  

  

  LONDON 
  : 
  

  

  Papers 
  continued 
  : 
  — 
  page 
  

  

  On 
  an 
  abnormal 
  specimen 
  of 
  

  

  Cochlicopa 
  lubrica. 
  ByE.W. 
  

  

  BowELL, 
  M.R.C.S. 
  (Figs.) 
  

   Diagnoses 
  of 
  four 
  undescribed 
  

  

  Helicoids 
  from 
  Borneo 
  and 
  

  

  Guam. 
  By 
  G. 
  K. 
  GUDE, 
  

  

  F.Z.S. 
  (Figs.) 
  

  

  Otina 
  otis 
  on 
  the 
  County 
  Down 
  

  

  Coast. 
  By 
  A. 
  W. 
  Stelfox 
  318 
  

   New 
  species 
  of 
  Puinnella, 
  

  

  Theodoxus, 
  and 
  Tellina. 
  

  

  By 
  G. 
  B. 
  SOWERBY, 
  F.L.S. 
  

  

  (Figs.) 
  

  

  More 
  Molluscan 
  Name-changes. 
  

  

  By 
  T. 
  Iredale 
  322 
  

  

  On 
  some 
  new 
  species 
  of 
  Marine 
  

  

  Mollusca 
  from 
  Christmas 
  

  

  Island, 
  Indian 
  Ocean. 
  By 
  

  

  T. 
  Iredale. 
  (Plate 
  XIII.) 
  331 
  

  

  312 
  

  

  315 
  

  

  320 
  

  

  DULAU 
  & 
  CO., 
  Ltd., 
  

   37 
  SoHO 
  Square, 
  W. 
  1. 
  

  

  