﻿148 
  PUOCKKDINGS 
  OK 
  THE 
  MALACOLOGICAL 
  SOCIETY, 
  

  

  Usually 
  in 
  3-5 
  fathoms, 
  amongst 
  loose 
  stones 
  and 
  muddy 
  sand. 
  

  

  Described 
  originally 
  from 
  Malacca. 
  

  

  Although 
  the 
  two 
  last, 
  here 
  considered 
  varieties, 
  can 
  usually 
  be 
  

   recognized, 
  I 
  fail, 
  after 
  having 
  examined 
  many 
  examples 
  from 
  the 
  

   Arabian 
  Sea 
  and 
  Persian 
  Gulf, 
  to 
  be 
  able 
  to 
  draw 
  a 
  liard 
  and 
  

   fast 
  line 
  between 
  them. 
  T. 
  poidoensis 
  is 
  the 
  most 
  incrassate 
  of 
  the 
  

   series, 
  and 
  the 
  coarsest 
  in 
  build, 
  the 
  typical 
  violacea 
  being 
  a 
  graceful, 
  

   attenuate 
  shell, 
  with 
  slightly 
  more 
  produced 
  canal. 
  

  

  14. 
  Tdrris 
  (Tomopleura) 
  patricia 
  (Melv.). 
  

   Pleurotoma 
  patricia, 
  Melvill, 
  Proc. 
  Malac. 
  Soc. 
  Loud., 
  vol. 
  vi, 
  1904, 
  

  

  p. 
  164, 
  pi. 
  X, 
  f. 
  15. 
  

  

  P.G. 
  Gulf 
  of 
  Oman, 
  lat. 
  24° 
  58' 
  N., 
  long. 
  56° 
  54' 
  E., 
  156 
  fathoms, 
  

   1903 
  ; 
  lat. 
  25° 
  6^' 
  N., 
  long. 
  60° 
  39' 
  K., 
  90 
  fathoms, 
  1914. 
  

  

  M.C. 
  Astola 
  Island, 
  Charbar, 
  40 
  fathoms. 
  

  

  The 
  tumid, 
  longitudinally 
  ribbed, 
  and 
  shining 
  third 
  and 
  fourth 
  

   whorls 
  of 
  this 
  charming 
  little 
  species 
  characterize 
  it 
  specially. 
  In 
  

   good 
  condition 
  the 
  shell 
  is 
  tinged 
  with 
  pale 
  violet. 
  I 
  possess 
  examples 
  

   of 
  PI. 
  lopresiimia, 
  Calcara, 
  from 
  Adventure 
  Bank 
  {Porcupine 
  

   Expedition), 
  which 
  show 
  slight 
  affinity, 
  but 
  are 
  quite 
  distinct 
  in 
  

   form, 
  the 
  effect 
  of 
  the 
  tumid 
  whorls 
  just 
  mentioned 
  being 
  to 
  give 
  

   patricia 
  a 
  somewhat 
  dolioform 
  contour. 
  It 
  appears 
  to 
  be 
  widely 
  

   distributed 
  over 
  the 
  Gulf 
  area, 
  but 
  is 
  sparse 
  in 
  individuals. 
  

  

  15. 
  ? 
  TuRRis 
  (Tomopleura) 
  thisbe 
  (Melv.). 
  

  

  ? 
  Prillia 
  Thi.sbe, 
  Melvill, 
  Proc. 
  Malac. 
  Soc. 
  Lond., 
  vol. 
  vii, 
  1906, 
  

   p. 
  77, 
  pi. 
  viii, 
  f. 
  20. 
  

  

  P.G. 
  Persian 
  Gulf, 
  Gulf 
  of 
  Oman, 
  lat. 
  24° 
  58' 
  N., 
  long. 
  56° 
  54' 
  E., 
  

   156 
  fathoms. 
  

  

  A 
  small 
  white 
  shell, 
  with 
  mouth 
  decidedly 
  buccinoid. 
  Nearly 
  all 
  

   the 
  specimens 
  seen 
  are 
  imperfect 
  as 
  regards 
  the 
  nuclear 
  Avhorls. 
  The 
  

   sliell 
  is 
  closely, 
  spirallj' 
  ridged. 
  There 
  are 
  many 
  differences 
  of 
  opinion 
  

   among 
  those 
  I 
  have 
  consulted 
  as 
  to 
  the 
  proper 
  status 
  of 
  this 
  species, 
  

   which 
  may 
  be 
  the 
  young 
  of 
  a 
  Tritonidea 
  or 
  allied 
  genus. 
  At 
  the 
  

   same 
  time 
  it 
  seems 
  to 
  possess 
  some 
  Pleurotomoid 
  characters, 
  but, 
  until 
  

   better 
  material 
  is 
  obtained, 
  I 
  fear 
  no 
  quite 
  satisfactory 
  conclusions 
  

   can 
  be 
  drawn. 
  

  

  Judging 
  b}' 
  the 
  figure, 
  it 
  resembles 
  in 
  form, 
  shape 
  of 
  aperture, 
  

   and 
  general 
  sculpture, 
  Daphnella 
  [Teres) 
  mimica, 
  Sowb.,' 
  from 
  

   St. 
  Vincent's 
  Gulf, 
  South 
  Australia. 
  

  

  16. 
  TuRRis 
  (Tomopleura) 
  trypanodes 
  (Melv.). 
  

  

  Pleurotoma 
  trypanodes^ 
  Melvill, 
  Proc. 
  Malac. 
  Soc. 
  Lond., 
  vol. 
  vi, 
  1904, 
  

   p. 
  57, 
  pi. 
  V, 
  f. 
  12. 
  

   P.G. 
  Henjam 
  Island, 
  1906. 
  

  

  Arabian 
  Sea, 
  hit. 
  18° 
  58' 
  N., 
  long. 
  71° 
  45' 
  E., 
  40 
  fathoms. 
  

   I. 
  On 
  cable, 
  100 
  miles 
  west 
  of 
  Bombay, 
  1906. 
  

  

  1 
  Proc. 
  Malac. 
  Soc. 
  Lond., 
  vol. 
  ii, 
  1896, 
  p. 
  27, 
  pi. 
  iii, 
  f. 
  10. 
  

  

  