﻿MOLLTJSCA. 
  .497 
  

  

  40. 
  Sistrum 
  ricinus, 
  Linne. 
  

   Darros 
  Island, 
  Amirantes. 
  

  

  41. 
  Coralliophila 
  madreporarum, 
  Sowerhy. 
  

   Etoile 
  Island, 
  Amirantes, 
  and 
  Seychellc 
  Islands, 
  in 
  4-13 
  fms. 
  

  

  42, 
  Coralliophila 
  amirantium. 
  (Plate 
  XLIV. 
  fig. 
  M.) 
  

  

  Shell 
  minute, 
  pyramidally 
  ovate-fusiform, 
  pale 
  pinkish 
  yellow. 
  

   Whorls 
  8 
  ; 
  three 
  apical 
  convex, 
  smooth, 
  the 
  rest 
  also 
  convex, 
  divided 
  

   by 
  a 
  deep 
  suture, 
  longitudinally 
  ribbed 
  and 
  transversely 
  ridged. 
  

   Costfe 
  somewhat 
  oblique, 
  rounded, 
  broader 
  than 
  the 
  interstices, 
  

   about 
  twelve 
  in 
  number 
  on 
  the 
  penultimate 
  volution, 
  rather 
  obso- 
  

   lete 
  towards 
  the 
  lower 
  part 
  of 
  the 
  last. 
  Spiral 
  liroe 
  well 
  raised, 
  

   squamose, 
  generally 
  four 
  in 
  number 
  on 
  the 
  upper 
  whorls, 
  aud 
  about 
  

   eleven 
  on 
  the 
  last, 
  alternating 
  with 
  more 
  slender 
  ones 
  in 
  the 
  inter- 
  

   stices. 
  Last 
  whorl 
  rounded 
  above, 
  contracted 
  below 
  the 
  middle, 
  

   with 
  a 
  conspicuous 
  scaled 
  ridge 
  around 
  the 
  cauda. 
  Aperture 
  light 
  

   jiink, 
  ovate-subpyriform, 
  contracted 
  anteriorly 
  intp 
  a 
  narrow, 
  oblique, 
  

   short, 
  recurved 
  caual. 
  Columella 
  subperpendicular, 
  very 
  little 
  

   arcuated, 
  coated 
  with 
  a 
  thin 
  pinkish 
  callus. 
  Outer 
  lip 
  not 
  much 
  

   thickened, 
  crenulated 
  at 
  the 
  edge, 
  and 
  armed 
  within 
  with 
  about 
  

   ten 
  fine 
  lirse, 
  which 
  run 
  far 
  within 
  the 
  aperture, 
  but 
  do 
  not 
  reach 
  

   the 
  margin 
  of 
  the 
  labrum. 
  Length 
  11^ 
  millim., 
  greatest 
  width 
  6i. 
  

  

  Marie-Louise, 
  African, 
  and 
  Eagle 
  Islands, 
  Amirantes, 
  10 
  to 
  

   17 
  fms. 
  

  

  This 
  species 
  belongs 
  to 
  the 
  same 
  genus 
  as 
  another 
  form 
  described 
  

   by 
  myself 
  as 
  Fiisus 
  ? 
  ahnormis. 
  On 
  further 
  consideration 
  I 
  am 
  of 
  

   opinion 
  that 
  they 
  would 
  be 
  more 
  correctly 
  placed 
  in 
  the 
  genus 
  

   CoralUopliila. 
  The 
  present 
  species 
  is 
  smaller 
  and 
  more 
  coarsely 
  

   sculptured 
  than 
  C. 
  abnormis 
  from 
  the 
  Andamans. 
  

  

  43. 
  Leptoconchus 
  rostratus. 
  

  

  Magilus 
  rostratus, 
  A. 
  Adams 
  ; 
  Soiverhy, 
  Conch. 
  Icon. 
  vol. 
  xviii. 
  

   figs. 
  15 
  rt, 
  h. 
  

  

  Darros 
  Island, 
  Amirantes, 
  in 
  22 
  fms. 
  ; 
  bottom 
  broken 
  coral. 
  

  

  44. 
  Pasciolaria 
  filamentosa, 
  Lamarck. 
  

   Darros 
  Island, 
  on 
  the 
  shore. 
  

  

  45. 
  Latirus 
  (Peristernia) 
  nassatula, 
  Lamarclc. 
  

   Seychelles, 
  4-12 
  fms. 
  

  

  46. 
  Oliva 
  episcopalis, 
  Lamarel: 
  

  

  Glorioso 
  Islands. 
  

  

  2k 
  

  

  