﻿240 
  

  

  PEOCEEDINGS 
  OF 
  THE 
  MALACOLOGICAL 
  SOCIETT. 
  

  

  1878. 
  J. 
  S. 
  Gibbons, 
  M.B., 
  (a) 
  "Notes 
  on 
  some 
  Land 
  Shells 
  of 
  

   Cunigao, 
  W.I., 
  with 
  descriptions 
  of 
  two 
  new 
  species" 
  ; 
  

   (6) 
  "Descriptions 
  of 
  two 
  new 
  species 
  of 
  Land 
  Shells 
  

   and 
  remarks 
  on 
  others, 
  collected 
  on 
  the 
  East 
  African 
  

   Coast 
  " 
  : 
  vol. 
  ii, 
  pp. 
  135-45, 
  pi. 
  i, 
  f. 
  1-5. 
  

   1880. 
  J. 
  W. 
  Taylor, 
  " 
  Descriptions 
  of 
  new 
  species 
  of 
  Land 
  Shells 
  

   from 
  the 
  East 
  Coast 
  of 
  Africa" 
  : 
  vol. 
  iii, 
  pp. 
  142-4. 
  

   In 
  April, 
  1910, 
  the 
  collection 
  formed 
  by 
  Dr. 
  Gibbons 
  was 
  acquired 
  

   by 
  Messrs. 
  Sowerby 
  & 
  Fulton, 
  and 
  the 
  type-specimens 
  found 
  therein 
  

   were 
  deposited 
  in 
  the 
  British 
  Museum. 
  The 
  following 
  types 
  were, 
  

   however, 
  missing 
  : 
  — 
  

  

  Zonites 
  {?) 
  ventrosa, 
  Taylor, 
  vol. 
  i, 
  p. 
  252, 
  pi. 
  ii, 
  f. 
  2. 
  

   Buliminus 
  costatus, 
  Taylor, 
  vol. 
  i, 
  p. 
  281, 
  pi. 
  iii, 
  f. 
  2. 
  

   B. 
  cinereus, 
  Taylor, 
  vol. 
  i, 
  p. 
  282, 
  pi. 
  iii, 
  f. 
  5. 
  

   Subulina 
  vUennedia, 
  Taylor, 
  vol. 
  i, 
  p. 
  282, 
  pi. 
  iii, 
  f. 
  4. 
  

   Saccinea 
  gyrata. 
  Gibbons, 
  vol. 
  ii, 
  p. 
  136, 
  pi. 
  i, 
  f. 
  2. 
  

   Helix 
  dubia, 
  Taylor, 
  vol. 
  iii, 
  p. 
  142. 
  

   Biilimus 
  bawriensis, 
  Taylor, 
  vol. 
  iii, 
  p. 
  142. 
  

   B. 
  zmiffuebaricus, 
  Taylor, 
  vol. 
  iii, 
  p. 
  143. 
  

   Bupa 
  turricula, 
  Taylor, 
  vol. 
  iii, 
  p. 
  143. 
  

   P. 
  i^Ennea) 
  sexdeiitata, 
  Taylor, 
  vol. 
  iii, 
  p. 
  144. 
  

   The 
  five 
  last-mentioned 
  species 
  were 
  supposed 
  to 
  have 
  been 
  

   figured 
  on 
  pi. 
  i, 
  vol. 
  iii, 
  but 
  that 
  plate 
  contains 
  entirely 
  different 
  

   matter. 
  I 
  would 
  point 
  out 
  that 
  the 
  names 
  Helix 
  dubia 
  and 
  Ennea 
  

   sexdentata 
  were 
  preoccu})ied 
  by 
  Clessin 
  and 
  Martens. 
  

  

  In 
  a 
  letter 
  to 
  me 
  Mr. 
  J. 
  W. 
  Taylor 
  confirms 
  the 
  omission 
  of 
  figures 
  

   of 
  the 
  five 
  species 
  in 
  question, 
  and 
  does 
  not 
  know 
  what 
  happened 
  wilh 
  

   regard 
  to 
  the 
  type-specimens. 
  

  

  DESCEIPTION 
  OF 
  A 
  NEW 
  SPECIES 
  OF 
  COLOMBIAN 
  TRICHO- 
  

   DISCINA 
  [T. 
  CRINITA). 
  

  

  By 
  Hugh 
  C. 
  FgLTON. 
  

  

  Read 
  13th 
  April, 
  1917. 
  

   SuELL 
  rather 
  widely 
  uiubilicate, 
  depressed 
  globose, 
  thin, 
  semi- 
  

   transparent, 
  covered 
  with 
  a 
  horn-brown 
  periostracura 
  with 
  close-set 
  

  

  Imm. 
  

   Tricliodiscina 
  crinita, 
  n.sp. 
  

  

  Vivlpara 
  occidta, 
  n.sp. 
  

  

  