﻿lEEDALE 
  : 
  NOTES 
  ON 
  POLTPLACOPHOKA. 
  105 
  

  

  The 
  last 
  word 
  on 
  the 
  Oiiithochitons 
  of 
  IS'ew 
  South 
  Wales 
  is 
  that 
  by 
  

   Pilsbry 
  when 
  he 
  accepted 
  "two 
  species 
  or 
  at 
  least 
  forms" 
  which 
  he 
  

   designated 
  rugulosus, 
  Angas, 
  and 
  querciniis, 
  Gould, 
  with 
  the 
  saving 
  

   clause 
  "Probably 
  intergrades 
  with, 
  the 
  preceding" 
  attached 
  to 
  the 
  

   latter. 
  That 
  his 
  caution 
  was 
  justified 
  I 
  am 
  confident. 
  In 
  the 
  first 
  

   place, 
  examination 
  of 
  the 
  types 
  of 
  rugidosus, 
  Angas, 
  and 
  Incii, 
  Reeve, 
  

   prove 
  these 
  names 
  to 
  be 
  synonymous, 
  with 
  priority 
  in 
  favour 
  of 
  the 
  

   latter. 
  However, 
  the 
  figures 
  of 
  Gould 
  are 
  good 
  enough 
  to 
  enable 
  the 
  

   identity 
  of 
  Incii, 
  Reeve, 
  and 
  his 
  quercinus 
  to 
  be 
  established, 
  so 
  that 
  

   of 
  the 
  published 
  names 
  quercinus, 
  Gould, 
  becomes 
  the 
  correct 
  one 
  to 
  use. 
  

  

  Onithochiton 
  Lyellii, 
  iSow., 
  has 
  been 
  quoted 
  from 
  Australia, 
  but 
  it 
  is 
  

   a 
  Pitcairn 
  Island 
  shell, 
  quite 
  distinct, 
  though 
  no 
  doubt 
  closely 
  allied. 
  

   I 
  have 
  closely 
  examined 
  many 
  specimens 
  from 
  New 
  South 
  Wales 
  and 
  

   Queensland, 
  and 
  though 
  there 
  sometimes 
  appear 
  the 
  two 
  forms 
  quoted 
  

   by 
  Pilsbry 
  I 
  cannot 
  keep 
  them 
  separate. 
  However, 
  mgulosus, 
  Angas, 
  

   is 
  absolutely 
  identical 
  with 
  Incii, 
  Peeve, 
  and 
  cannot 
  be 
  used 
  for 
  a 
  form, 
  

   the 
  latter 
  having 
  priority. 
  My 
  examination 
  of 
  Reeve's 
  type 
  leads 
  me 
  

   to 
  say 
  the 
  same 
  when 
  it 
  is 
  compared 
  with 
  Gould's 
  figures 
  of 
  quercinus. 
  

  

  Thiele 
  has 
  pointed 
  out 
  at 
  the 
  quotation 
  given 
  that 
  Incii, 
  Reeve, 
  is 
  

   distinct 
  from 
  Lyellii, 
  Sow. 
  On 
  the 
  same 
  page 
  he 
  introduces 
  a 
  new 
  

   species 
  of 
  Onithochiton 
  as 
  from 
  New 
  South 
  Wales, 
  which 
  I 
  comment 
  

   upon 
  in 
  the 
  succeeding 
  note. 
  

  

  Onithochiton 
  Scholvieni, 
  Thiele. 
  

  

  Onithochiton 
  Scholvieni^ 
  Thiele, 
  Zool. 
  Chun, 
  1909, 
  Heft 
  Ivi, 
  p. 
  99, 
  

   pi. 
  X, 
  figs. 
  60-1. 
  

  

  Upon 
  a 
  tablet 
  in 
  the 
  British 
  Museum 
  labelled 
  Onithochiton 
  Incii, 
  

   Reeve, 
  were 
  four 
  specimens 
  of 
  a 
  large 
  new 
  Onithochiton. 
  They 
  were 
  

   quite 
  dissimilar 
  to 
  that 
  species, 
  and 
  I 
  had 
  dissected 
  one 
  to 
  prepare 
  

   a 
  description. 
  Upon 
  receipt 
  of 
  Dr. 
  Thiele' 
  s 
  paper 
  I 
  recognized 
  at 
  

   once 
  my 
  shell 
  under 
  the 
  above 
  name. 
  I 
  only 
  wish 
  here 
  to 
  draw 
  

   attention 
  to 
  the 
  locality 
  of 
  Dr. 
  Thiele's 
  specimens. 
  They 
  were 
  

   supposed 
  to 
  have 
  come 
  from 
  New 
  South 
  Wales, 
  but 
  I 
  cannot 
  believe 
  

   that. 
  The 
  specimens 
  in 
  the 
  British 
  Museum 
  are 
  labelled 
  " 
  West 
  

   Australia", 
  Avhich 
  seems 
  to 
  me 
  more 
  correct. 
  

  

  