﻿190 
  PROCEEDINGS 
  OF 
  THE 
  MALACOLOGICAL 
  SOCIETT. 
  

  

  " 
  the 
  smooth 
  furrow 
  at 
  the 
  top 
  of 
  the 
  whorls, 
  the 
  reticulated 
  surface, 
  

   and 
  the 
  rather 
  produced 
  canal". 
  Bnt, 
  surely, 
  two 
  of 
  these 
  three 
  

   characteristics 
  are 
  also 
  present 
  in 
  asperulata, 
  and 
  as 
  regards 
  the 
  third, 
  

   the 
  furrow 
  at 
  the 
  top 
  of 
  the 
  whorls 
  seems 
  very 
  much 
  the 
  same 
  in 
  

   each. 
  However, 
  I 
  keep 
  them 
  distinct 
  at 
  present 
  out 
  of 
  regard 
  for 
  

   the 
  author. 
  Both 
  these 
  species 
  are 
  also 
  reported 
  from 
  Japan. 
  

  

  153. 
  Clatuuuina 
  (Vepuecula.) 
  sykesii 
  (Melv. 
  & 
  St.). 
  

  

  Clathurella 
  sylccsii, 
  Melvill 
  & 
  Standen, 
  Ann. 
  Alag. 
  Nat. 
  Hist., 
  ser. 
  vii, 
  

   vol. 
  xii, 
  1903, 
  p. 
  314, 
  pi. 
  xxiii, 
  f. 
  4. 
  

  

  P.G. 
  Gulf 
  of 
  Oman, 
  lat. 
  24° 
  58' 
  N., 
  long. 
  56° 
  5i' 
  E., 
  156 
  fathoms. 
  

  

  Abundant 
  locally, 
  in 
  the 
  dredging 
  just 
  mentioned, 
  all 
  the 
  

   specimens 
  being 
  dead, 
  and 
  often 
  fragmentary. 
  The 
  species 
  is 
  almost 
  

   an 
  exact 
  replica 
  in 
  miniature 
  of 
  a 
  typical 
  Fusinus, 
  so 
  far 
  as 
  the 
  

   contour 
  is 
  concerned. 
  It 
  is 
  extremely 
  narrow, 
  and 
  the 
  longitudinal 
  

   ribs 
  on 
  the 
  body-whorl 
  number 
  onl)^ 
  eight. 
  The 
  nepionic 
  whorls 
  are 
  

   of 
  the 
  same 
  character 
  as 
  those 
  of 
  vepratica 
  and 
  reticulosa. 
  

  

  154. 
  Clathurina 
  (Vepuecula) 
  vhpratica 
  (Hedley). 
  (PI. 
  X, 
  Fig. 
  14.) 
  

  

  Pleurotoma 
  vepratica, 
  C. 
  Hedley, 
  Mem. 
  Austral. 
  Mus., 
  vol. 
  iv, 
  1903, 
  

  

  p. 
  384, 
  pi. 
  vi, 
  f. 
  97. 
  

   Pleurotoniella 
  ,, 
  ,, 
  E,opt. 
  Australasian 
  Assoc, 
  vol. 
  xii, 
  

  

  1910, 
  p. 
  365. 
  

  

  P.G. 
  Gulf 
  of 
  Oman, 
  lat. 
  24° 
  58' 
  K, 
  long. 
  56° 
  54' 
  E., 
  156 
  fatlioms. 
  

  

  M.C. 
  Charbar, 
  40 
  fatlioms. 
  

  

  When, 
  in 
  1904, 
  I 
  described 
  CI. 
  hedleyi, 
  I 
  alluded 
  to 
  the 
  fact 
  of 
  

   Cl. 
  vepratica 
  (Hedl.) 
  being 
  almost 
  exactly 
  intermediate 
  between 
  that 
  

   species 
  and 
  Cl. 
  syhesii 
  (Melv. 
  & 
  St.). 
  There 
  can 
  be 
  no 
  doubt 
  of 
  tliis 
  ; 
  

   and 
  now 
  that 
  all 
  three 
  species 
  are 
  found 
  togetlier 
  in 
  the 
  same 
  seas, 
  

   the 
  question 
  may 
  be 
  asked 
  whether 
  they 
  are 
  not 
  varietal. 
  I 
  hardly 
  

   think 
  so 
  : 
  the 
  extremely 
  attenuate 
  sylccsii, 
  with 
  only 
  8 
  costae 
  on 
  

   the 
  body-whorl, 
  the 
  far 
  more 
  tumid 
  and 
  ventricose 
  hedleyi, 
  with 
  

   14 
  or 
  occasionally 
  16, 
  and 
  the 
  slightly 
  angular 
  vepratica, 
  stouter 
  than 
  

   sykesii, 
  but 
  attenuate 
  in 
  comparison 
  with 
  hedleyi, 
  and 
  10-11 
  ribbed, 
  

   always 
  seem 
  fairlj' 
  easily 
  separable. 
  The 
  nepionic 
  whorls 
  are 
  very 
  

   similar. 
  But 
  few 
  of 
  those 
  we 
  have 
  been 
  able 
  to 
  examine 
  of 
  any 
  of 
  

   the 
  species 
  are 
  quite 
  perfect, 
  but 
  many 
  show 
  three 
  whorls, 
  all 
  very 
  

   finely 
  costulate. 
  I 
  have 
  in 
  my 
  possession, 
  from 
  the 
  Arthur 
  Adams 
  

   collection 
  of 
  Japanese 
  shells, 
  one 
  example 
  in 
  perfect 
  condition, 
  of 
  

   what 
  I 
  consider 
  this 
  species. 
  Mr. 
  Hedley's 
  figure, 
  as 
  quoted 
  above, 
  

   should 
  be 
  consulted. 
  This 
  type 
  has 
  a 
  five-whorled 
  nepionic 
  apex. 
  

  

  The 
  species 
  came 
  from 
  Australia, 
  oif 
  J'ort 
  Kemble, 
  63-75 
  fathoms 
  ; 
  

   Botany 
  Bay, 
  50-2 
  fathoms; 
  oflp 
  Cape 
  Three 
  Points, 
  41-50 
  fathoms; 
  

   also 
  off 
  Cabbage 
  Tree 
  Island 
  in 
  1880; 
  and 
  it 
  is 
  likewise 
  recorded 
  

   from 
  the 
  'Torres 
  Straits 
  (Hedley). 
  It 
  seems 
  to 
  me 
  that 
  the 
  peculiar 
  

   nuclear 
  whorls 
  preclude 
  the 
  genus 
  Pleurotoniella 
  being 
  seriously 
  

   considered 
  for 
  this 
  species, 
  as 
  suggested 
  in 
  1909 
  by 
  its 
  author, 
  in 
  his 
  

   enumeration 
  of 
  Queensland 
  shells. 
  

  

  