﻿MELTILL 
  : 
  PYKAMIDELLID.E 
  OF 
  THE 
  PEfiSIAN 
  GULF, 
  ETC. 
  205 
  

  

  Odostomii 
  doeica, 
  Melvill. 
  

   Odostomia 
  dorica, 
  Melvill, 
  Journ. 
  Malac, 
  vol. 
  xi, 
  p. 
  82, 
  pi. 
  viii, 
  fig. 
  9. 
  

  

  Mah.—V.G. 
  Maskat, 
  15 
  fathoms; 
  Gulf 
  of 
  Oman, 
  lat. 
  24° 
  58' 
  N., 
  

   long. 
  56° 
  51' 
  E., 
  156 
  fathoms. 
  

  

  Known 
  by 
  the 
  upper 
  whorls 
  exhibiting 
  longitudinal 
  riblets 
  or 
  

   nodules, 
  the 
  apex 
  and 
  two 
  lowest 
  whorls 
  remaining 
  quite 
  smooth. 
  It 
  

   is 
  one 
  of 
  the 
  rarest 
  of 
  the 
  local 
  Odostomice. 
  

  

  Odostomia 
  euteopia, 
  var. 
  cuassispira. 
  PI. 
  VI, 
  Pig. 
  15. 
  

  

  Odostomia 
  eutropia, 
  Melvill, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  vol. 
  iv, 
  p. 
  94, 
  

   pi. 
  ii, 
  fig. 
  14, 
  1899. 
  

  

  Hab. 
  — 
  P.O. 
  Bushire, 
  Mussandam, 
  47 
  fathoms; 
  Gulf 
  of 
  Oman, 
  

   lat. 
  26° 
  23' 
  N., 
  long. 
  54° 
  53' 
  E., 
  250 
  fathoms; 
  lat. 
  24° 
  58' 
  N., 
  

   long. 
  56° 
  54' 
  E., 
  156 
  fathoms, 
  shell-sand. 
  

  

  M.C. 
  Off 
  Charbar, 
  40 
  fathoms. 
  

  

  I. 
  Karachi, 
  on 
  mud, 
  25 
  fathoms; 
  Bombay 
  (Abercrombie), 
  rarely. 
  

  

  This 
  shining, 
  solid, 
  white 
  little 
  species 
  is 
  the 
  most 
  abundant 
  of 
  all 
  

   the 
  small 
  Odostomice 
  in 
  this 
  region, 
  and, 
  as 
  might 
  be 
  expected 
  

   therefore, 
  it 
  varies 
  considerably. 
  It 
  may 
  be 
  known 
  by 
  its 
  canaliculate 
  

   sutures 
  and 
  angled 
  periphery. 
  Some 
  examples 
  are 
  oval 
  in 
  form, 
  with 
  

   less 
  marked 
  carination; 
  others 
  have 
  the 
  Avhorls, 
  at 
  all 
  events 
  in 
  the 
  

   upper 
  part, 
  gradate 
  and 
  turreted. 
  

  

  Mr. 
  Charles 
  Hedley, 
  having 
  seen 
  some 
  Gulf 
  of 
  Oman 
  specimens, 
  

   considers 
  ^ 
  it 
  synonymous 
  with 
  0. 
  coynpta, 
  Brazier, 
  which 
  he 
  mentions 
  

   as 
  common 
  and 
  variable, 
  and 
  first 
  described 
  from 
  the 
  Chevert 
  

   Collection. 
  He 
  likewise 
  writes 
  that 
  it 
  is 
  abundant 
  at 
  the 
  Hope 
  

   Islands, 
  Queensland, 
  and 
  has 
  been 
  traced 
  south 
  to 
  the 
  Palace 
  Islands 
  

   and 
  Port 
  Curtis, 
  and 
  westerly 
  to 
  Van 
  Diemen's 
  Inlet 
  in 
  the 
  Gulf 
  of 
  

   Carpentaria. 
  I 
  believe 
  this 
  species, 
  in 
  one 
  or 
  other 
  of 
  its 
  varieties, 
  

   will 
  be 
  found 
  in 
  intermediate 
  localities, 
  and 
  having 
  become 
  possessed 
  

   of 
  many 
  Pyramidellidae 
  collected 
  by 
  I)r. 
  Artliur 
  Adams 
  in 
  Japan, 
  

   I 
  find 
  a 
  few 
  specimens 
  which 
  are 
  probably 
  0. 
  subangulata, 
  A. 
  Adams, 
  

   and 
  these 
  may 
  be 
  the 
  same 
  as 
  both 
  eutropia 
  and 
  compta. 
  

  

  Pending, 
  therefore, 
  a 
  more 
  complete 
  investigation 
  as 
  to 
  the 
  

   variations 
  and 
  ramifications 
  of 
  this 
  species 
  and 
  its 
  nearest 
  allies, 
  I 
  do 
  

   not 
  alter 
  tlie 
  name 
  at 
  the 
  present 
  juncture, 
  especially 
  as 
  I 
  have 
  nciver 
  

   seen 
  Mr. 
  Braziers 
  species. 
  I 
  figure 
  a 
  large 
  turreted 
  variety, 
  much 
  

   thickened 
  at 
  the 
  sutures, 
  which 
  may 
  be 
  designated 
  as 
  var. 
  crassispira, 
  

   measuring 
  long. 
  7, 
  lat. 
  2-25 
  mm. 
  

  

  Odostomia 
  litiopina, 
  Melvill 
  & 
  Standen. 
  

  

  Odostomia 
  litiopina, 
  Melvill 
  & 
  Standen, 
  Proc. 
  Zool. 
  Soc 
  , 
  vol. 
  ii, 
  p. 
  395, 
  

   pi. 
  xxiii, 
  tig. 
  1, 
  1901. 
  

  

  JIab.—'PM. 
  Gulf 
  of 
  Oman, 
  lat. 
  25° 
  24' 
  N., 
  long. 
  57° 
  27' 
  E., 
  

   241 
  fathoms; 
  also 
  lat. 
  25° 
  31' 
  N., 
  long. 
  57° 
  14' 
  E., 
  198 
  fathoms, 
  mud. 
  

  

  No 
  more 
  of 
  this 
  somewhat 
  obscure 
  olivaceous 
  species 
  have 
  been 
  

   found. 
  

  

  ' 
  I'roc. 
  Liuu. 
  Soc. 
  N.S.W., 
  vol. 
  xxxiv, 
  p. 
  44;'). 
  

  

  