﻿504 
  COLLECTIONS 
  FROM 
  THE 
  WESTEEN 
  INDIAN 
  OCEAN. 
  

  

  rust-brown 
  colour, 
  being 
  spotted 
  and 
  more 
  irregularly 
  stained 
  with 
  

   the 
  same 
  tint 
  below. 
  The 
  two 
  Amirante 
  specimens 
  have 
  the 
  same 
  

   style 
  of 
  markings, 
  but 
  of 
  a 
  greenish 
  colour 
  or 
  green 
  and 
  brown 
  

   mingled 
  together. 
  Both 
  of 
  these 
  and 
  one 
  of 
  the 
  specimens 
  in 
  the 
  

   Cumingian 
  collection 
  have 
  a 
  distinct 
  ■ 
  zone 
  composed 
  of 
  irregular 
  

   dark-coloured 
  spots 
  round 
  the 
  middle 
  of 
  the 
  base. 
  

  

  87. 
  Turbo 
  tursicus. 
  (Plate 
  XLIV. 
  figs. 
  U-U^.) 
  

  

  Eeeve, 
  Conch. 
  Icon. 
  sp. 
  60; 
  Pldlippi, 
  Conch.-Cab. 
  ed. 
  2, 
  p. 
  83, 
  pi. 
  ID. 
  

   fig. 
  5. 
  

  

  Daros 
  Island; 
  Philippine 
  Islands 
  {Cuming). 
  

  

  This 
  beautiful 
  species 
  is 
  well 
  characterized 
  by 
  its 
  style 
  of 
  painting. 
  

   It 
  is 
  whitish 
  with 
  broad 
  scarlet 
  rays, 
  particularly 
  distinct 
  on 
  the 
  

   sloping 
  upper 
  surfaces 
  of 
  the 
  whorls 
  ; 
  these 
  are 
  sometimes 
  edged 
  

   with 
  black 
  posteriorly, 
  and 
  the 
  suture 
  is 
  more 
  or 
  less 
  stained 
  with 
  

   that 
  colour. 
  The 
  lower 
  part 
  of 
  the 
  body-whorl 
  is 
  for 
  the 
  most 
  part 
  

   scarlet 
  with 
  a 
  few 
  narrow 
  white 
  streaks 
  (sometimes 
  black-spotted) 
  

   radiating 
  from 
  the 
  umbilical 
  region. 
  The 
  operculum 
  is 
  white, 
  thick, 
  

   convex, 
  and 
  granose 
  externally. 
  

  

  88. 
  Turbo 
  (Marmorostoma) 
  coronatus. 
  

  

  Turbo 
  coronatus, 
  Gmelin, 
  PhiUppi, 
  C'oJic/(..-Crt6. 
  ed. 
  2, 
  p. 
  23, 
  pi. 
  G. 
  figs. 
  

   11-13. 
  

  

  Zanzibar. 
  

  

  This 
  species 
  has 
  also 
  been 
  recorded 
  from 
  the 
  Red 
  Sea, 
  the 
  

   Seychelles, 
  Madagascar, 
  Natal, 
  Malacca, 
  Cochin 
  China, 
  and 
  the 
  

   Moluccas. 
  

  

  89. 
  Phasianella 
  zethiopica, 
  PkUippi. 
  

   Bird 
  Island, 
  Seychelles, 
  on 
  the 
  beach. 
  

  

  90. 
  Trocbus 
  (Gibbula)? 
  amirantium. 
  (Plate 
  XLIV. 
  figs. 
  V.-V.) 
  

  

  Shell 
  small, 
  subglobose, 
  perforate, 
  spirally 
  finely 
  lirate 
  and 
  sulcate, 
  

   white, 
  the 
  lirse 
  being 
  interruptedly 
  pink. 
  Whorls 
  4-5, 
  convex, 
  

   rapidly 
  increasing 
  ; 
  last 
  whorl 
  rounded 
  at 
  the 
  periphery, 
  lirate 
  

   throughout, 
  the 
  lirae 
  being 
  rather 
  narrower 
  than 
  the 
  intervening 
  

   grooves 
  and 
  crossed 
  by 
  the 
  lines 
  of 
  growth. 
  Aperture 
  circular, 
  

   occupying 
  more 
  than 
  half 
  the 
  total 
  height 
  of 
  the 
  shell. 
  Columella 
  

   arcuate, 
  white, 
  covered 
  with 
  a 
  callus, 
  which 
  is 
  considerably 
  refiexed 
  

   especially 
  at 
  the 
  lower 
  part. 
  Height 
  4 
  millim., 
  greatest 
  diameter 
  

   4^ 
  millim. 
  

  

  Etoile 
  Island, 
  Amirantes, 
  in 
  13 
  fms. 
  

  

  The 
  distinguishing 
  feature 
  of 
  this 
  little 
  species 
  is 
  the 
  refiexed 
  

   character 
  of 
  the 
  columella. 
  I 
  have 
  not 
  the 
  operculum, 
  and 
  cojise- 
  

   qucntly 
  am 
  in 
  doubt 
  respecting 
  the 
  true 
  generic 
  position. 
  

  

  