﻿MELVILL 
  : 
  TUREin^ 
  OF 
  THE 
  PERSIAN 
  GULF, 
  ETC. 
  185 
  

  

  Live 
  albino 
  shells 
  dredged 
  off 
  the 
  above 
  locality 
  constitute 
  a 
  well- 
  

   marked 
  colour 
  variety. 
  

  

  The 
  largest 
  examples 
  of 
  this 
  interesting 
  species, 
  surely 
  worthy 
  of 
  

   a 
  more 
  complimentary 
  cognomen, 
  come 
  from 
  the 
  Linjah 
  Anchorage, 
  

   and 
  measure 
  long. 
  14 
  mm. 
  It 
  is 
  of 
  extended 
  range. 
  Hinds 
  

   described 
  the 
  type 
  from 
  New 
  Guinea 
  and 
  the 
  Straits 
  of 
  Malacca 
  in 
  

   5-18 
  fathoms, 
  mud. 
  lleeve 
  ^ 
  compares 
  it 
  Avith 
  argillacea, 
  also 
  of 
  

   Hinds, 
  and 
  from 
  the 
  same 
  locality 
  (Malacca). 
  Judging 
  from 
  the 
  

   figure 
  it 
  would 
  seem 
  almost 
  identical. 
  The 
  smallest 
  exam])les 
  of 
  this 
  

   species 
  that 
  have 
  come 
  under 
  my 
  notice 
  measure 
  long. 
  9 
  mm., 
  and 
  

   are 
  in 
  my 
  possession, 
  labelled 
  "From 
  the 
  Lombe 
  Taylor 
  Coll." 
  

   Under 
  the 
  name 
  Clathurella 
  spurca, 
  Hidalgo 
  admits 
  it 
  to 
  his 
  

   Philippine 
  Islands 
  list, 
  and 
  Hedley, 
  as 
  Glyphostoma 
  spurcum, 
  from 
  

   Queensland. 
  

  

  Genus 
  CLATHUEINA, 
  nom. 
  nov. 
  = 
  CLATHUEELLA," 
  Carpenter, 
  1857, 
  

   DEFEANCIA, 
  Millet, 
  1826, 
  nom. 
  prseocc. 
  

  

  138. 
  Clathukina 
  aglaia 
  (Melv.). 
  

   Mangilia 
  aglaia, 
  Melv., 
  Proc. 
  Malac. 
  Soc. 
  Loud., 
  vol. 
  vi, 
  1904, 
  p. 
  165, 
  

   pi. 
  X, 
  f. 
  19. 
  

   P.G. 
  Mussandam, 
  55 
  fathoms, 
  rarely. 
  

  

  The 
  ochreous, 
  beautifully 
  microscopically 
  decussate 
  third 
  and 
  fourth 
  

   ■whorls 
  are 
  to 
  be 
  noted. 
  A 
  very 
  elegant 
  species, 
  closely 
  roundly 
  

   ribbed 
  and 
  latticed, 
  of 
  which 
  but 
  few 
  examples 
  have 
  come 
  to 
  light. 
  

   In 
  one 
  specimen 
  tlie 
  third 
  whorl 
  is 
  angled. 
  The 
  sinus 
  is 
  sutural, 
  

   rather 
  wide. 
  

  

  139. 
  Clathurina 
  albicaudata 
  (Sm.). 
  (PI. 
  IX, 
  Fig. 
  13.) 
  

  

  Pleurotoma 
  {Def^-ancia'^) 
  albicaudata, 
  E. 
  A. 
  Smith, 
  Ann. 
  Mag. 
  Nat. 
  

   Hist., 
  ser. 
  V, 
  vol, 
  x, 
  1882, 
  p. 
  299. 
  

  

  P.G. 
  Mussandam, 
  47 
  fathoms. 
  

  

  I. 
  Karachi. 
  On 
  rocks 
  amongst 
  weeds 
  at 
  low 
  tide. 
  

  

  The 
  author 
  calls 
  attention 
  to 
  the 
  contrast 
  of 
  coloration 
  in 
  this 
  

   species, 
  the 
  apex 
  and 
  lowest 
  portion 
  of 
  the 
  body-whorl 
  being 
  white 
  

   and 
  the 
  remainder 
  of 
  the 
  shell 
  rich 
  brown. 
  I 
  have 
  seen 
  no 
  variation 
  

   in 
  the 
  many 
  specimens 
  examined. 
  

  

  140. 
  Clathurina 
  catqaria, 
  sp. 
  nov. 
  (PL 
  X, 
  Fig. 
  8.) 
  

  

  C. 
  testa 
  miiiuta, 
  Candida, 
  delicata, 
  ovato-fusiformi, 
  anfractibus 
  8, 
  

   quorum 
  apicales 
  2^ 
  pallide 
  straminei, 
  globulosi, 
  microscopice 
  arete 
  

   cancellati, 
  coeteris 
  costatis, 
  costis 
  rotundatis, 
  crassis, 
  undique 
  spiraliter 
  

   rudi-liratulis, 
  numero 
  costarum 
  anfractus 
  ultimi 
  9, 
  lirarum 
  9, 
  deinde 
  

  

  Conch. 
  Icon., 
  vol. 
  i, 
  1845, 
  pi. 
  xxv, 
  f. 
  217. 
  

  

  Mr. 
  T. 
  Iredale 
  informs 
  me 
  that 
  the 
  name 
  Clathurella 
  cannot 
  stand, 
  the 
  type 
  

   being 
  a 
  large 
  fossil, 
  quite 
  unlike 
  the 
  species 
  hitherto 
  grouped 
  under 
  this 
  

   designation. 
  No 
  other 
  cognomen 
  has 
  yet 
  been 
  proposed, 
  and 
  hence 
  

   I 
  would 
  suggest 
  Clathurina, 
  taking 
  as 
  the 
  type 
  CI. 
  foraminata 
  

   (Eeeve). 
  

  

  