﻿MELVILL 
  : 
  TUKRID.E 
  OK 
  THE 
  PERSIAN 
  GULF, 
  ETC. 
  173 
  

  

  94. 
  Mangilia 
  munda 
  (Sm.). 
  (PI. 
  IX, 
  Fij;. 
  5.) 
  

   Pleurotoma 
  [ClalhureUa) 
  munda, 
  E. 
  A. 
  Smitli, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  

   ser. 
  VI, 
  vol. 
  ii, 
  188S, 
  p. 
  316. 
  

   P.G. 
  Coll. 
  Pelly. 
  (Type 
  in 
  the 
  British 
  Museum.) 
  

   We 
  figure 
  the 
  type 
  of 
  this 
  small 
  species, 
  concerning 
  which 
  the 
  author 
  

   remarks: 
  "This 
  is 
  especially 
  remarkable 
  for 
  tlie 
  fine 
  yet 
  very 
  

   prominent 
  thread-like 
  lirations 
  encircling 
  the 
  whorls. 
  The 
  longi- 
  

   tudinal 
  ribs 
  are 
  stout, 
  rounded, 
  and 
  equalling 
  in 
  width 
  the 
  interstices 
  

   between 
  them." 
  It 
  has 
  not 
  occurred 
  in 
  Mr. 
  Townsend's 
  gatherings. 
  

   There 
  is 
  a 
  prominent 
  tootli-like 
  projection 
  just 
  below 
  the 
  sinus 
  in 
  the 
  

   outer 
  lip. 
  It 
  is 
  allied 
  to 
  M. 
  scitula, 
  Sm. 
  ; 
  so 
  with 
  a 
  little 
  diffidence 
  

   I 
  remove 
  it 
  from 
  Clathurella. 
  The 
  apical 
  whorls 
  are 
  smooth, 
  vitreous. 
  

  

  95. 
  Mangilia 
  mykmecodes, 
  Melv. 
  & 
  St. 
  

  

  Mangilia 
  myrmecodes, 
  Melvill 
  & 
  Standen, 
  Proc. 
  Zool. 
  Soc. 
  Lond., 
  

   1901, 
  p. 
  -142, 
  pi. 
  xxiv, 
  f. 
  6. 
  

  

  M.C. 
  Chai'bar, 
  5 
  fathoms, 
  mud. 
  

  

  I. 
  Karachi, 
  not 
  uncommon. 
  

  

  The 
  noduled 
  costse 
  are 
  particularly 
  Avell 
  defined. 
  It 
  resembles 
  

   hascauda, 
  M. 
  & 
  St., 
  from 
  Lifu,' 
  and 
  also 
  has 
  affinities 
  with 
  

   horiieana, 
  Sm., 
  and 
  erymna, 
  Melv., 
  now 
  just 
  described. 
  M. 
  lucida, 
  

   Sm., 
  may 
  likewise 
  be 
  compared. 
  The 
  sinus 
  issutural, 
  nuclear 
  whorls 
  

   Avhite, 
  smooth. 
  Might 
  be 
  considered 
  equally 
  a 
  Clathurella\ 
  the 
  section 
  

   to 
  which 
  it 
  belongs 
  seems 
  to 
  link 
  the 
  two 
  genera. 
  Cythara 
  yradata,'^ 
  

   !Nevill, 
  likewise 
  seems 
  comparable, 
  a 
  species 
  which 
  I 
  know 
  only 
  from 
  

   a 
  figure, 
  not 
  very 
  conclusively 
  drawn. 
  

  

  96. 
  Mangilia 
  olivieriana, 
  sp. 
  nov. 
  (PL 
  X, 
  Fig. 
  7.) 
  

  

  M. 
  testa 
  parva, 
  tenui, 
  albo-lactea 
  vel 
  paullum 
  cserulescente, 
  fusi- 
  

   formi, 
  periostraco 
  evanido 
  ochreo- 
  brunneo 
  tenuissime 
  contecta, 
  

   anfractibus 
  8, 
  quorum 
  apicales 
  3 
  leves, 
  tertio 
  unicarinato, 
  cjeteris 
  

   indistincte 
  costellatis, 
  et 
  spiraliter 
  rudiliratis, 
  liris 
  distantibus, 
  ad. 
  

   suturas 
  impressis, 
  apertura 
  patula, 
  labro 
  subexpanso 
  tenui, 
  sinu 
  lato 
  

   sed 
  baud 
  profundo, 
  columella 
  fere 
  recta, 
  canali 
  brevissimo. 
  

  

  Long. 
  9, 
  lat. 
  3 
  mm. 
  

  

  ^[.C. 
  Off 
  Charbar, 
  110 
  fathoms 
  (1913). 
  

  

  A 
  thin 
  species, 
  which 
  one 
  might 
  expect, 
  being 
  so 
  melanoid 
  in 
  

   ' 
  facies 
  ', 
  might 
  live 
  in 
  brackish 
  water, 
  but 
  this 
  is 
  evidently 
  not 
  the 
  

   case, 
  for 
  it 
  is 
  abysmal 
  in 
  its 
  distribution. 
  It 
  resembles 
  no 
  Mangilia 
  

   we 
  are 
  cognizant 
  of. 
  Of 
  a 
  milky-white 
  or 
  bluish 
  colour, 
  with 
  an 
  olive- 
  

   brown 
  fugitive 
  epidermis, 
  it 
  is 
  8-whorled, 
  three 
  being 
  only 
  veryslightly 
  

   costellate, 
  and 
  crossed 
  with 
  coarsish 
  distant 
  raised 
  lines 
  ; 
  the 
  mouth 
  is 
  

   singularly 
  wide, 
  outer 
  lip 
  thin, 
  sinus 
  wide 
  but 
  very 
  shallow, 
  columella 
  

   straight. 
  A 
  few 
  examples 
  occurred 
  gregariously 
  in 
  the 
  above 
  dredging. 
  

   I 
  have 
  the 
  great 
  pleasure 
  in 
  connecting 
  with 
  this 
  interesting 
  shell 
  

   the 
  name 
  of 
  a 
  relative, 
  Lieut. 
  -Col. 
  Henry 
  1). 
  Olivier, 
  who, 
  with 
  his 
  

  

  ^ 
  Journ. 
  of 
  Conch., 
  vol. 
  viii, 
  1896, 
  p. 
  279, 
  pi. 
  ix, 
  f. 
  13. 
  

  

  ^ 
  Journ. 
  As. 
  Soc. 
  Bengal, 
  vol. 
  xliv, 
  pt. 
  ii, 
  1875, 
  p. 
  93, 
  pi. 
  vii, 
  f. 
  18. 
  

  

  