﻿27 
  

  

  ON 
  SOME 
  NEW 
  AND 
  OLD 
  MOLLUSCAN 
  GENERIC 
  NAMES. 
  

  

  By 
  Tom 
  Iredale. 
  

  

  Bead 
  12th 
  November, 
  1915. 
  

  

  The 
  names 
  here 
  dealt 
  with 
  are 
  such 
  as 
  have 
  attracted 
  special 
  attention 
  

   while 
  determining 
  Mollusca 
  from 
  Lord 
  Howe 
  Island 
  in 
  connexion 
  

   with 
  Kermadec 
  and 
  jS'orfolk 
  Island 
  forms. 
  Complications 
  have 
  ensued 
  

   so 
  that 
  it 
  seems 
  convenient 
  to 
  expound 
  some 
  of 
  my 
  solutions 
  herewitli. 
  

   I 
  am 
  very 
  gratified 
  at 
  the 
  continuation 
  of 
  the 
  criticism, 
  in 
  

   correspondence 
  as 
  well 
  as 
  in 
  print, 
  of 
  mj 
  previous 
  notes 
  by 
  Dr. 
  Dall, 
  

   M. 
  Cossmann, 
  and 
  Mr. 
  Hedley. 
  It 
  is 
  my 
  custom 
  to 
  acknowledge 
  the 
  

   work 
  of 
  such, 
  and 
  I 
  would 
  here 
  lecord 
  the 
  fact 
  that 
  a 
  i)aper 
  by 
  

   Dr. 
  Dall 
  on 
  the 
  '^ 
  Orthaulax 
  pugiiax 
  Zone", 
  published 
  "Jan. 
  21, 
  

   1915 
  ", 
  was 
  not 
  received 
  in 
  England, 
  owing 
  to 
  the 
  unusual 
  conditions 
  

   existing, 
  until 
  the 
  first 
  week 
  in 
  September, 
  1915. 
  Consequently 
  

   notes 
  written 
  and 
  published 
  by 
  me 
  long 
  after 
  the 
  first 
  date 
  do 
  nut 
  

   mention 
  this 
  paper, 
  while 
  I 
  Avas 
  dealing 
  with 
  names 
  that 
  occurred 
  

   in 
  it. 
  The 
  points 
  wherein 
  my 
  conclusions 
  differ 
  from 
  those 
  arrived 
  

   at 
  by 
  Dr. 
  Dall 
  will 
  be 
  considered 
  later. 
  It 
  is 
  necessary 
  to 
  make 
  this 
  

   apology, 
  since 
  all 
  systematic 
  malacologists 
  are 
  so 
  deeply 
  indebted 
  to 
  

   Dr. 
  Dull's 
  writings, 
  whether 
  his 
  conclusions 
  be 
  absolutely 
  accepted 
  or 
  

   otherwise. 
  I 
  have 
  received 
  one 
  criticism 
  of 
  my 
  previous 
  notes 
  in 
  

   which 
  the 
  advice 
  was 
  tendered 
  to 
  " 
  go 
  slow 
  " 
  and 
  lessen 
  the 
  risk 
  of 
  

   proposing 
  synonyms. 
  I 
  might 
  remark 
  that 
  in 
  cases 
  such 
  as 
  are 
  

   hereafter 
  set 
  out 
  it 
  is 
  quite 
  impossible 
  to 
  do 
  otherwise 
  than 
  

   "go 
  slow", 
  though, 
  in 
  the 
  present 
  chaotic 
  state 
  of 
  classitication, 
  

   that 
  does 
  not 
  obviate 
  the 
  chance 
  of 
  creating 
  unacceptable 
  names. 
  

   It 
  is 
  only 
  by 
  the 
  co-operation 
  of 
  other 
  workers, 
  througli 
  the 
  publica- 
  

   tion 
  of 
  incomplete 
  notes, 
  that 
  the 
  truth 
  can 
  be 
  arrived 
  at 
  in 
  very 
  

   complex 
  cases. 
  

  

  Anaeithma, 
  nov. 
  gen. 
  

  

  Erom 
  a 
  dredging 
  made 
  by 
  Mr. 
  Roy 
  Bell 
  in 
  15-20 
  fath. 
  off 
  Lord 
  

   Howe 
  Island 
  I 
  sorted 
  out 
  some 
  lialf-dozen 
  shells 
  whose 
  beauty 
  

   greatly 
  pleased 
  me: 
  my 
  tentative 
  attacliment 
  was 
  " 
  Columhella 
  sensu 
  

   latissimo 
  ", 
  with 
  distinct 
  leanings 
  towards 
  the 
  Turridae. 
  Mr. 
  Edgar 
  A 
  . 
  

   Smith 
  generously 
  helped 
  me 
  in 
  the 
  same 
  manner 
  as 
  when 
  dealing 
  

   with 
  many 
  other 
  shells, 
  and 
  I 
  now 
  record 
  the 
  results 
  of 
  our 
  search. 
  

   It 
  was 
  found 
  that 
  owing 
  to 
  its 
  peculiarities 
  the 
  shell 
  had 
  received 
  

   (at 
  least) 
  six 
  specific 
  names, 
  three 
  writers 
  assigning 
  it 
  to 
  Columhella, 
  

   one 
  to 
  Cythara, 
  one 
  to 
  Mitra, 
  and 
  one 
  to 
  Clavatula. 
  Eollowing 
  up 
  

   its 
  history 
  I 
  found 
  it 
  had 
  been 
  placed, 
  at 
  various 
  times, 
  under 
  no 
  less 
  

   than 
  thirteen 
  genera 
  or 
  sub-genera. 
  It 
  correlates 
  with 
  no 
  known 
  

   genus 
  at 
  all 
  well, 
  hence 
  I 
  allot 
  it 
  one 
  for 
  itself. 
  Before 
  taking 
  this 
  

   action, 
  many 
  generic 
  names 
  had 
  to 
  be 
  considered, 
  and 
  I 
  give 
  notes 
  on 
  

   these 
  to 
  receive 
  criticism. 
  

  

  It 
  liad 
  better 
  first 
  be 
  stated 
  that 
  the 
  genus 
  name 
  is 
  proposed 
  for 
  

   the 
  shell 
  commonly 
  known 
  as 
  " 
  Columhella 
  lachryma, 
  Gaskoin", 
  

  

  