﻿MELVILL 
  : 
  TUERID^ 
  OF 
  THE 
  PERSIAN 
  GULF, 
  ETC. 
  145 
  

  

  classes 
  them 
  accordingly 
  in 
  these 
  two 
  genera, 
  but 
  I 
  cannot 
  say 
  

   I 
  agree 
  with 
  this 
  proposal. 
  

  

  7. 
  TtJERis 
  (Gemmula) 
  gilcheisti 
  (Sowb.). 
  

  

  Pleurotoma 
  gilchristi, 
  G. 
  B. 
  Sowerby, 
  "Marine 
  Investigations 
  in 
  

   8. 
  Africa," 
  Cape 
  Town, 
  1902, 
  p. 
  99, 
  fig. 
  

   M.C. 
  Off 
  lias 
  Maidani 
  between 
  Jask 
  and 
  Charbar, 
  at 
  180 
  fathoms, 
  

   1914, 
  occurs 
  what 
  appears 
  to 
  be 
  this 
  species, 
  the 
  type 
  of 
  which 
  came 
  

   from 
  Natal. 
  It 
  is 
  nearlj^ 
  allied 
  to 
  P. 
  ceylonica, 
  Sm., 
  of 
  which 
  I 
  have 
  an 
  

   example 
  from 
  the 
  Hugh 
  Nevill 
  Collection. 
  The 
  tubercles, 
  liowever, 
  

   are 
  smaller 
  and 
  more 
  compact 
  in 
  gilchristi, 
  and 
  it 
  is 
  much 
  less 
  in 
  

   latitude, 
  proportionately, 
  than 
  the 
  var. 
  guadtirensis 
  of 
  2\ 
  granosa, 
  

   Helb. 
  [ 
  = 
  carinata, 
  Gray). 
  

  

  8. 
  TuRius 
  (Gemmula) 
  granosa 
  (Helb.). 
  

  

  Murex 
  {Fusus) 
  granosus, 
  Helbling, 
  Abliandl. 
  Priv. 
  Bohm. 
  Math. 
  

  

  Prag, 
  Bd. 
  iv, 
  1779, 
  p. 
  116, 
  pi. 
  ii, 
  f. 
  16. 
  

  

  Dall, 
  Journ. 
  of 
  Conch., 
  vol. 
  xi, 
  1906, 
  p. 
  291. 
  

  

  Pleurotoma 
  carinata, 
  Gray, 
  Griffiths' 
  Cuvier 
  Anim. 
  Kingdom, 
  vol. 
  xii, 
  

  

  1834, 
  pi. 
  xxiii. 
  

   ,, 
  ,, 
  Reeve, 
  Conch. 
  Icon., 
  vol. 
  i, 
  1843, 
  pi. 
  vii, 
  f. 
  56. 
  

  

  ,, 
  Jcieneri, 
  Doumet, 
  Mag. 
  de 
  Zool., 
  1840, 
  Moll., 
  pi. 
  x. 
  

  

  P.G. 
  Fahal, 
  20-40 
  fathoms; 
  Mussandam, 
  30 
  fathoms, 
  1912; 
  Gulf 
  

   of 
  Oman, 
  Muscat, 
  25-40 
  fathoms. 
  

  

  Var. 
  guadarensis, 
  no 
  v. 
  

  

  Testa 
  ut 
  in 
  typo, 
  sed 
  omnino 
  minor, 
  fere 
  immaculata. 
  

  

  M.C. 
  Gwadur, 
  one 
  specimen 
  at 
  70 
  fathoms. 
  A 
  few 
  others, 
  all 
  

   much 
  of 
  the 
  same 
  calibre, 
  off 
  Has 
  Maidani, 
  between 
  Gwadur 
  and 
  

   Jask. 
  

  

  The 
  sculpture 
  of 
  this 
  variety 
  is 
  identical 
  with 
  the 
  type; 
  the 
  size 
  

   about 
  one-half, 
  say 
  38 
  mm. 
  as 
  against 
  60-70 
  mm., 
  the 
  coloration 
  

   most 
  simple, 
  nearly 
  immaculate, 
  

  

  9. 
  TuRRis 
  (Gemmula) 
  multiseriata 
  (Sm.). 
  (PI. 
  VIII, 
  Fig. 
  3.) 
  

  

  Pleurotoma 
  multiseriata, 
  E. 
  A. 
  Smith, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  ser. 
  iv, 
  

   vol. 
  xix, 
  1877, 
  p. 
  491. 
  

  

  P.G. 
  Koweit, 
  10 
  fathoms. 
  

  

  M.C. 
  In 
  many 
  places, 
  5-20 
  fathoms, 
  mud 
  bottom. 
  

  

  I. 
  Twelve 
  miles 
  west 
  of 
  Karachi, 
  on 
  the 
  border 
  of 
  the 
  Mekran 
  

   coast, 
  at 
  15 
  fathoms. 
  Very 
  large 
  examples 
  occurring 
  in 
  this 
  locality, 
  

   measuring 
  finch. 
  

  

  Captain 
  Tindall 
  of 
  the 
  S.S. 
  Patrick 
  Stetvart 
  likewise 
  procured 
  it 
  

   at 
  Batticaloa, 
  south 
  of 
  our 
  limit. 
  

  

  We 
  follow 
  Paetel 
  ' 
  in 
  assigning 
  this 
  shell 
  to 
  the 
  section 
  Gemmula, 
  

   but 
  it 
  stands 
  somewhat 
  alone 
  in 
  the 
  assemblage, 
  resembling 
  in 
  extreme 
  

   miniature 
  such 
  a 
  large 
  deep-water 
  form 
  as 
  congener^ 
  Sm. 
  It 
  is 
  

   distinguished 
  by 
  the 
  double 
  row 
  of 
  tubercles, 
  spirally 
  running 
  below 
  

  

  ^ 
  Paetel, 
  Cat. 
  de 
  Conchyl. 
  Samml., 
  1887, 
  p. 
  67. 
  

  

  