﻿152 
  PROCKEDIXGS 
  OF 
  THK 
  MALACOLOGICAL 
  SOCIETY. 
  

  

  (rt) 
  Var. 
  aainsonii, 
  Sin. 
  (PI. 
  VIII, 
  Fig. 
  7.) 
  

  

  Pleurotoma 
  {Drillia) 
  atkinsonii, 
  E, 
  A. 
  Smith, 
  Ann. 
  Mag, 
  Nat. 
  Hist., 
  

   ser. 
  IV, 
  vol, 
  xix, 
  1877, 
  p. 
  495. 
  

  

  P.G. 
  Muscat, 
  25 
  fathoms. 
  

  

  :M.C. 
  Rarely, 
  at 
  10-12 
  fathoms. 
  

  

  I. 
  Bombay, 
  where 
  it 
  appears 
  the 
  prevailing 
  form, 
  though 
  tlie 
  tvpe 
  

   has 
  also 
  been 
  recorded 
  (Abercrombie). 
  Lieut. 
  -Col. 
  H. 
  D. 
  Olivier 
  has 
  

   also 
  collected 
  the 
  typical 
  creniilaris 
  at 
  Bassein, 
  near 
  Bombay. 
  

   Karachi 
  (Townsend), 
  both 
  the 
  type 
  and 
  the 
  variety. 
  

  

  {b) 
  Yar. 
  griffithii, 
  Gray, 
  

  

  Pleurotoma 
  griffithii, 
  J. 
  E. 
  Gray 
  MSS., 
  Reeve, 
  Conch. 
  Icon., 
  vol. 
  i, 
  

   1843, 
  pi. 
  vii, 
  f. 
  57. 
  

  

  P.G, 
  Gulf 
  of 
  Oman, 
  Jask, 
  on 
  hard 
  sand. 
  Muscat, 
  10-35 
  fathoms. 
  

  

  M.C. 
  Charbar, 
  at 
  low 
  spring 
  tides. 
  

  

  I, 
  Karachi, 
  specimens 
  washed 
  up 
  all 
  along 
  the 
  coast. 
  

  

  I 
  expect 
  when 
  all 
  the 
  forms 
  allied 
  to 
  creniilaris 
  (and 
  by 
  this 
  is 
  

   meant 
  bai/tihami, 
  Sm., 
  intertincta, 
  Sm., 
  major, 
  Grav, 
  etc., 
  mostly 
  

   separable 
  by 
  coloration, 
  or 
  some 
  other 
  peculiarity 
  liable 
  to 
  varv) 
  are 
  

   studied 
  really 
  closely, 
  that 
  they 
  will 
  be 
  found 
  hardly 
  worthy 
  of 
  

   separate 
  specific 
  rank. 
  

  

  28. 
  Drii.lia 
  dives, 
  Melv. 
  & 
  St. 
  

  

  Drillia 
  dives, 
  Melvill 
  & 
  Standen, 
  Ann. 
  Mag. 
  Xat, 
  Hist., 
  ser, 
  vri, 
  

   vol. 
  xii, 
  1903, 
  p. 
  311, 
  pi. 
  xxii, 
  f. 
  13. 
  

  

  P.G. 
  Gulf 
  of 
  Oman, 
  Muscat, 
  25 
  fathoms. 
  

  

  In 
  the 
  original 
  description 
  this 
  is 
  represented 
  as 
  being 
  allied 
  to 
  

   Z). 
  clydonia. 
  I 
  now 
  think 
  D. 
  philotima 
  its 
  nearest 
  ally. 
  The 
  

   latter, 
  however, 
  has 
  far 
  more 
  frequent 
  longitudinal 
  costse, 
  and 
  the 
  

   mouth 
  is 
  narrower. 
  

  

  29. 
  ])rillia 
  EUCHKoiis, 
  Melv. 
  

   Drillia 
  encJiroes, 
  Melvill, 
  Proc. 
  Malac. 
  Soc. 
  Lond., 
  vol. 
  x, 
  1912, 
  

   p. 
  250, 
  pi. 
  xi, 
  f. 
  11. 
  

   P.G. 
  On 
  the 
  Telegraph 
  Cable, 
  September 
  2, 
  1906. 
  

   A 
  most 
  distinct 
  species, 
  latiroid 
  superficially, 
  the 
  sinus 
  being 
  very 
  

   obscure, 
  and 
  the 
  painting 
  of 
  spiral 
  ochreous 
  lines 
  alternating 
  with 
  

   wliite 
  and 
  darker 
  stramineous, 
  somewhat 
  resembling 
  Latirus 
  turritus, 
  

   Gmel., 
  or 
  a 
  miniature 
  Fasciolariajilamentosa, 
  ^lait. 
  It 
  has 
  occurred 
  

   but 
  very 
  rarely. 
  

  

  30. 
  Drillia 
  flavidula 
  (Lam.). 
  

  

  Pleurotoma 
  flavidula, 
  Lamarck, 
  Anim. 
  sans 
  Yert., 
  vol. 
  vii, 
  1822, 
  p. 
  92. 
  

   ,. 
  ,, 
  Reeve, 
  Conch. 
  Icon., 
  vol. 
  i, 
  1843, 
  pi. 
  viii, 
  f. 
  66. 
  

  

  P.G. 
  Koweit, 
  7 
  fathoms. 
  Shaikh 
  Shuaib 
  Island, 
  36 
  fathoms 
  (1906). 
  

   Gulf 
  of 
  Oman, 
  Jask, 
  175 
  fathoms 
  (1912). 
  Malcolm 
  Inlet 
  (Kubbatt 
  

   Ghazira), 
  very 
  uncommon 
  at 
  24 
  fathoms. 
  

  

  A 
  species 
  of 
  bold 
  contour, 
  particularly 
  abundant 
  in 
  Erythraean 
  

   waters. 
  The 
  Jask 
  specimens 
  are 
  fine 
  and 
  large, 
  often 
  covered 
  with 
  

   Malluvium 
  lissum 
  (Sm.), 
  one 
  of 
  the 
  Calyptraeidae, 
  peculiar 
  to 
  these 
  

  

  