﻿G8 
  proci;i;dings 
  of 
  thk 
  malacological 
  societt. 
  

  

  L. 
  eUiptictis, 
  var. 
  trapeziformis, 
  Furtado, 
  Journ. 
  de 
  Concli., 
  vol. 
  xxxiii, 
  

  

  1885, 
  p. 
  150. 
  

   L. 
  ellipticus, 
  var. 
  liiapidensis, 
  Furtado, 
  Jourii. 
  de 
  Conch., 
  vol. 
  xxxiii, 
  

  

  1885, 
  p. 
  151. 
  

   Z. 
  zambezianus, 
  Furtado, 
  Journ. 
  de 
  Conch., 
  vol.' 
  .xxxiv, 
  188G, 
  p. 
  148, 
  

  

  pi. 
  viii, 
  fig. 
  1. 
  

   Meladonms 
  ambiffUHs, 
  Bourg., 
  Mojl. 
  Equat. 
  Afr., 
  1889, 
  p. 
  172. 
  

   M. 
  deguerrymius, 
  Jjourg., 
  Moll. 
  Equal. 
  Afr., 
  1889, 
  p. 
  175. 
  Evidently 
  

  

  a 
  young 
  shell. 
  

   Lanides 
  affinu, 
  var. 
  manayarana, 
  Stui-any, 
  in 
  Baumann, 
  Durch 
  

  

  Massaihuid, 
  1894, 
  p. 
  310, 
  taf. 
  xxiv, 
  fig.' 
  32. 
  

   Ilah. 
  — 
  Mozambique, 
  Angola, 
  Lake 
  iNyassa, 
  etc. 
  

  

  19. 
  Lanistes 
  palustris, 
  Morelet. 
  

   Ampnllaria 
  palustris, 
  Morelet, 
  Journ. 
  de 
  Conch., 
  vol. 
  xii, 
  1864, 
  

  

  p. 
  158. 
  

   ITab. 
  — 
  Senegal. 
  

  

  20. 
  Lanistes 
  olivaceus, 
  Sowerby. 
  

   Faliidina 
  olivacea, 
  ISowerby, 
  Gen. 
  of 
  Shells 
  [No. 
  41, 
  1834, 
  Paludina, 
  

  

  tig. 
  3]. 
  

   Ampullaria 
  purptirea, 
  Jonas, 
  Arcli. 
  Naturg., 
  1839, 
  p. 
  242, 
  pi. 
  x, 
  fig. 
  1. 
  

   Bulimus 
  tristis, 
  Jay, 
  Cat. 
  of 
  SlielLs, 
  1839, 
  p. 
  121, 
  pi. 
  vii, 
  fig. 
  1. 
  

   Meladomiis 
  hulimoides, 
  Swainson, 
  Treat, 
  on 
  Malacology, 
  1840, 
  p. 
  340. 
  

   M. 
  olivaceus, 
  Sow. 
  (selected 
  as 
  the 
  tvpe 
  of 
  the 
  genus). 
  Gray, 
  Proc. 
  

  

  Zool. 
  Soc, 
  1847, 
  p. 
  148. 
  

   M. 
  olivaceus 
  (Sow.), 
  H. 
  & 
  A. 
  Adams, 
  Gen. 
  of 
  Sliells, 
  i, 
  1858, 
  p. 
  349, 
  

  

  pi. 
  xxxvi, 
  fig. 
  6. 
  

   M. 
  pyramidalis, 
  Letourneux, 
  in 
  Bourg. 
  Moll. 
  Egypte, 
  Abyssinia, 
  etc., 
  

  

  1879, 
  p. 
  36. 
  

   Ampullaria 
  procera, 
  Martens, 
  Novit. 
  Conch., 
  vol. 
  ii 
  [1870], 
  p. 
  292, 
  

  

  pi. 
  Ixxi, 
  figs. 
  1,2. 
  

   Jleladomus 
  nitidissimus, 
  Bourg., 
  !^^oll. 
  Equat. 
  Afr., 
  1889, 
  p. 
  171. 
  

   J/, 
  hloyeti, 
  Bourg., 
  ib., 
  1889, 
  p. 
  171. 
  

  

  JIab. 
  — 
  .Mozambique, 
  Zanzibar, 
  Ousagliara, 
  Congo, 
  etc. 
  

   A 
  very 
  variable 
  and 
  widely 
  distributed 
  species. 
  The 
  shells 
  are 
  

   generally 
  pyramidal 
  in 
  form, 
  but 
  they 
  sometimes 
  partake 
  of 
  a 
  more 
  

   oblong-oval 
  shape. 
  Some 
  are 
  distinctly 
  umbilicated, 
  others 
  almost 
  or 
  

   quite 
  imperforate. 
  

  

  21. 
  Lanistes 
  sinistkoesds, 
  Lea. 
  

   Paludina 
  sinistrorsa, 
  Lea, 
  Trans. 
  Amer. 
  Phil. 
  Soc, 
  vol. 
  vi, 
  1839, 
  p. 
  98, 
  

  

  pi. 
  xxiii, 
  fig. 
  78. 
  

   Ampullaria 
  si7iistrorsa, 
  Philippi, 
  Mon. 
  Amp., 
  1850, 
  p. 
  64, 
  pi. 
  xxi, 
  

   fig. 
  3. 
  

   Hdb. 
  — 
  Usagara, 
  and 
  Lake 
  Tanganyika. 
  

  

  22. 
  Lanistes 
  solidus. 
  Smith. 
  

   Proc. 
  Zool. 
  Soc, 
  1877, 
  p. 
  716, 
  pi. 
  ixxiv, 
  figs. 
  10, 
  11. 
  

   Ilab. 
  — 
  Lake 
  Nyassa. 
  

  

  