﻿IREDALE 
  : 
  NEW 
  AND 
  OLD 
  MOLI.USCAN 
  GENEKIC 
  NAMES. 
  oo 
  

  

  obese, 
  and 
  from 
  closely 
  sculptured 
  to 
  almost 
  smooth. 
  Hedley's 
  

   beautiful 
  figures 
  and 
  descriptions 
  in 
  the 
  Proc. 
  Linn. 
  Soc. 
  N.S.W., 
  

   vol. 
  xxxix, 
  pt. 
  4, 
  1915, 
  pp. 
  740-5, 
  pi. 
  Ixxxiii, 
  figs. 
  68-72, 
  74, 
  

   75, 
  77, 
  of 
  typical 
  Zafra 
  should 
  enable 
  the 
  easy 
  recognition 
  of 
  this 
  

   genus. 
  I 
  am 
  doubtful 
  about 
  the 
  inclusion 
  of 
  Pyrene 
  lurida, 
  and 
  

   have 
  written 
  to 
  Mr. 
  Hedley 
  for 
  his 
  further 
  opinion. 
  I, 
  however, 
  

   have 
  not 
  the 
  least 
  doubt 
  in 
  rejecting 
  Cohimbella 
  abijssicula, 
  15razier, 
  

   from 
  this 
  association. 
  Mr. 
  Hedley 
  has 
  furnished 
  splendid 
  illustrations 
  

   of 
  this 
  shell 
  in 
  the 
  Proc. 
  Linn. 
  Soc. 
  N 
  S.W., 
  vol. 
  xxxii, 
  Oct. 
  25, 
  

   1907, 
  pi. 
  xix, 
  figs. 
  40-3, 
  and 
  these 
  show 
  the 
  generic 
  characters 
  of 
  

   quite 
  another 
  group, 
  of 
  which 
  I 
  have 
  a 
  magnificent 
  species 
  in 
  these 
  

   same 
  dredgings. 
  Other 
  smooth 
  " 
  Columbelloids 
  " 
  1 
  will 
  treat 
  at 
  a 
  later 
  

   opportunity, 
  but 
  would 
  just 
  summarize 
  this 
  note 
  as 
  follows 
  : 
  — 
  

  

  Genus 
  Anarithma, 
  nov. 
  gen. 
  — 
  Here 
  proposed 
  for 
  Clavatula 
  metnla. 
  

   Hinds. 
  Hervier 
  has 
  added 
  other 
  species 
  to 
  this 
  group, 
  which 
  I 
  will 
  

   later 
  discuss. 
  It 
  must 
  be 
  repeated 
  that 
  these 
  are 
  preliminary 
  notes 
  

   published 
  for 
  the 
  sake 
  of 
  criticism, 
  and 
  later 
  I 
  will 
  develop 
  any 
  points 
  

   indicated. 
  

  

  Gemis 
  Zafra, 
  A. 
  Adams.— 
  Hedley 
  has 
  discussed 
  this 
  at 
  the 
  places 
  

   quoted 
  previoush', 
  and 
  I 
  have 
  noted 
  minor 
  points 
  where 
  we 
  differ 
  for 
  

   further 
  consideration. 
  Citharopsis, 
  Pease 
  (not 
  Cytharopsis, 
  A. 
  Adams), 
  

   is 
  an 
  absolute 
  synonym. 
  

  

  Genus 
  Seminella, 
  Pease. 
  — 
  Type, 
  Seminella 
  varia 
  (Pease). 
  I 
  consider 
  

   this 
  a 
  well-marked 
  group, 
  which 
  I 
  will 
  elaborate 
  later. 
  For 
  the 
  

   purpose 
  of 
  criticism 
  I 
  would 
  cite 
  as 
  members 
  Coltimhella 
  Iceta, 
  ]5razier, 
  

   Proc. 
  Linn. 
  Soc. 
  N.S.W., 
  vol. 
  i, 
  1877, 
  p. 
  232, 
  and 
  Zafra 
  purpurea, 
  

   H. 
  Adams, 
  Proc. 
  Zool. 
  Soc, 
  1873, 
  p. 
  206, 
  pi. 
  xxiii, 
  fig. 
  3. 
  

  

  Genus 
  Hetizafra, 
  Hedley. 
  — 
  I 
  think, 
  in 
  view 
  of 
  the 
  complexity 
  of 
  

   these 
  small 
  "Columbelloids", 
  it 
  would 
  be 
  best 
  to 
  at 
  once 
  consider 
  

   Retizafra 
  as 
  a 
  genus. 
  Through 
  all 
  the 
  variation 
  of 
  Zafra 
  no 
  close 
  

   approach 
  to 
  these 
  reticulate 
  shells 
  is 
  found, 
  and 
  as 
  we 
  might 
  {)roceed 
  

   almost 
  directly 
  from 
  Zafra 
  into 
  Seminella, 
  and 
  thence 
  to 
  Etiplica, 
  

   while 
  on 
  the 
  other 
  hand 
  we 
  can 
  grade 
  into 
  a 
  quite 
  smooth 
  shell, 
  

   I 
  cannot 
  demonstrate 
  a 
  subgeneric 
  value 
  for 
  Retizafra. 
  

  

  Euplica 
  was 
  provided 
  by 
  Dall 
  (Bull. 
  Mus, 
  Comp. 
  Zool. 
  (Harv.), 
  

   vol. 
  xviii, 
  June, 
  1889, 
  p. 
  187) 
  with 
  Columhella 
  turturina., 
  Duclos, 
  as 
  

   type. 
  To 
  this 
  genus 
  belongs 
  Columhella 
  versicolor, 
  Sowerby, 
  though 
  

   this 
  shell 
  has 
  been 
  commonly 
  classed 
  in 
  the 
  same 
  sub-genus 
  as 
  

   C. 
  tyleri, 
  Gray, 
  which 
  I 
  refer 
  to 
  Pyrene. 
  I 
  will 
  elaborate 
  the 
  

   relationships 
  of 
  this 
  species 
  later, 
  as 
  I 
  have 
  to 
  deal 
  completely 
  with 
  

   all 
  the 
  above-named 
  species. 
  

  

  Genus 
  Zafrona, 
  nov. 
  gen. 
  — 
  Introduced 
  for 
  Columhella 
  tsomella, 
  

   Duclos. 
  The 
  forms 
  at 
  present 
  ranged 
  by 
  me 
  under 
  this 
  name 
  will 
  

   be 
  reviewed 
  later, 
  as 
  will 
  most 
  of 
  the 
  other 
  species 
  referred 
  to 
  

   previously. 
  

  

  This 
  note 
  may 
  appear 
  lengthy, 
  but 
  I 
  have 
  endeavoured 
  to 
  limit 
  

   my 
  remarks 
  to 
  the 
  generic 
  names 
  concerned, 
  and 
  I 
  will 
  fully 
  review 
  

   the 
  species 
  when 
  I 
  later 
  report 
  on 
  the 
  collections 
  named. 
  Only 
  one 
  

   further 
  point 
  will 
  I 
  touch 
  on 
  now, 
  and 
  that 
  is 
  the 
  family 
  name. 
  

   I 
  maintain 
  it 
  should 
  be 
  called 
  Pyrenidae, 
  not 
  Columbellidae, 
  while 
  

  

  VOL. 
  XII.— 
  march, 
  1916. 
  3 
  

  

  