﻿32 
  PROCEEDINGS 
  OF 
  THE 
  MALACOLOGICAL 
  SOCIETY. 
  

  

  Tryon, 
  in 
  the 
  Man. 
  Conch., 
  vol. 
  v, 
  1883, 
  p. 
  168, 
  ranged 
  the 
  species 
  

   under 
  Coltimbella, 
  renaming 
  Citharopsis 
  ortiaia, 
  Pse., 
  Columhella 
  

   garrettii, 
  Tryon. 
  This 
  name 
  has 
  been 
  accepted, 
  but 
  it 
  was 
  invalid 
  on 
  

   account 
  of 
  Cythara 
  garrettii, 
  a 
  synonym 
  of 
  C. 
  lachryma, 
  lieeve. 
  Aguin, 
  

   authentic 
  specimens 
  of 
  Citharopsis 
  ornata, 
  Pse., 
  are 
  preserved 
  in 
  the 
  

   British 
  Museum, 
  and 
  these 
  are 
  absolutely 
  true 
  Zafra, 
  and 
  have 
  even 
  

   been 
  determined 
  as 
  variants 
  of 
  troglodytes, 
  Souverbie. 
  Further, 
  there 
  

   is 
  a 
  prior 
  Cytharopsis, 
  A. 
  Adams, 
  Ann. 
  Mag. 
  Nat. 
  Hist., 
  ser. 
  iii, 
  

   vol. 
  XV, 
  April 
  1, 
  1865, 
  p. 
  322. 
  C. 
  gracilis, 
  Pse., 
  as 
  noted 
  above, 
  

   I 
  determine 
  to 
  be 
  a 
  true 
  Seminella. 
  

  

  The 
  only 
  other 
  species 
  mentioned 
  in 
  relation 
  with 
  Citharopsis, 
  viz. 
  

   Tiriton) 
  pu.iillus, 
  Pse., 
  may 
  be 
  here 
  commented 
  upon. 
  This 
  shell 
  was 
  

   described 
  in 
  the 
  Proc. 
  Zool. 
  Soc, 
  1860, 
  p. 
  434, 
  as 
  Tritoji 
  pimilla 
  from 
  

   the 
  Sandwich 
  Islands, 
  the 
  type 
  being 
  preserved 
  in 
  the 
  British 
  Museum 
  

   in 
  the 
  Cuming 
  Collection. 
  Tryon, 
  in 
  the 
  Man. 
  Conch., 
  vol. 
  iii, 
  1881, 
  

   ^ 
  p- 
  3 
  1, 
  ranged 
  it 
  under 
  Tritofi 
  in 
  the 
  sub-genus 
  Epidromus, 
  and 
  on 
  pi. 
  xvi, 
  

  

  ^^ 
  tig. 
  156, 
  gave 
  a 
  figure, 
  observing, 
  "Figured 
  from 
  a 
  typical 
  example 
  

  

  in 
  Coll. 
  Acad. 
  Phila." 
  Mr. 
  J. 
  K. 
  Le 
  B. 
  Tomlin, 
  identifying 
  shells 
  

   received 
  from 
  the 
  Sandwich 
  Islands, 
  showed 
  me 
  this 
  species, 
  and 
  

   I 
  immediately 
  recognized 
  it 
  as 
  one 
  of 
  my 
  puzzling 
  forms. 
  It 
  very 
  

   rarely 
  occurred 
  in 
  this 
  Lord 
  Howe 
  dredging, 
  and 
  also 
  rarely 
  as 
  

   a 
  sub-littoral 
  shell 
  at 
  Norfolk 
  Island. 
  When 
  looking 
  up 
  Clienu 
  

   1 
  observed 
  the 
  same 
  species 
  as 
  C\^olotnbella'\ 
  isomella, 
  II 
  lust. 
  Conch., 
  

   1846, 
  pi. 
  ix, 
  figs. 
  7-8, 
  and 
  Mr. 
  Tomlin 
  has 
  told 
  me 
  he 
  has 
  made, 
  

   independently, 
  the 
  same 
  determination. 
  It 
  is 
  curious 
  to 
  quote 
  Tryon's 
  

   remarks 
  concerning 
  this 
  species 
  (vol. 
  v, 
  p. 
  173) 
  — 
  " 
  The 
  present 
  species 
  

   may 
  possibly 
  be 
  a 
  small 
  Pleurotomoid." 
  

  

  The 
  variation 
  displayed 
  by 
  this 
  species 
  appears 
  to 
  be 
  great, 
  as 
  

   I 
  suggest 
  all 
  the 
  shells 
  from 
  Lifu 
  are 
  conspecific, 
  though 
  Hervier 
  

   differentiated 
  these 
  into 
  three 
  species 
  with 
  many 
  varieties 
  as 
  follows 
  

   in 
  the 
  Journ. 
  de 
  Conch., 
  vol. 
  xlvii, 
  1899, 
  p. 
  358, 
  Columhella 
  lifouana, 
  

   pi. 
  xiii, 
  fig. 
  6 
  : 
  Lifu. 
  p. 
  359, 
  var. 
  a, 
  riifolineata, 
  and 
  p. 
  360, 
  var. 
  ji, 
  

   intermissa. 
  On 
  p. 
  360, 
  Columhella 
  isomella, 
  Duclos, 
  with 
  p. 
  361, 
  var. 
  a, 
  

   transversa, 
  var. 
  /3, 
  suhfelina, 
  pL 
  xiii, 
  fig. 
  7, 
  and 
  p. 
  362, 
  var. 
  7, 
  notata. 
  

   On 
  p. 
  362, 
  Columhella 
  striatula, 
  Dunker, 
  with 
  p. 
  363, 
  vars. 
  «, 
  snlphurea, 
  

   f3, 
  ruhicunda, 
  7, 
  suhcarnea, 
  0, 
  lineolata, 
  and 
  e, 
  immaculata. 
  

  

  It 
  is 
  possible 
  that 
  there 
  may 
  be 
  more 
  than 
  one 
  species, 
  but 
  as 
  my 
  

   few 
  specimens 
  also 
  show 
  variation 
  I 
  conclude 
  we 
  have 
  here 
  a 
  very 
  

   variable 
  species. 
  

  

  I 
  propose 
  to 
  designate 
  this 
  generically 
  by 
  the 
  new 
  name 
  : 
  — 
  

  

  Zafrona, 
  nov. 
  gen. 
  

  

  and 
  name 
  Colomhella 
  [sw] 
  isomella, 
  Duclos, 
  as 
  type. 
  I 
  think 
  

   C. 
  biirnupi, 
  E. 
  A. 
  Smith 
  (Journ. 
  Conch., 
  vol. 
  x, 
  Oct. 
  1, 
  1901, 
  p. 
  112, 
  

   pi. 
  i, 
  fig. 
  2 
  : 
  Natal), 
  is 
  congeneric, 
  and 
  I 
  note 
  it 
  is 
  there 
  recorded 
  

   " 
  The 
  radula 
  is 
  columbelloid 
  ". 
  

  

  I 
  hope 
  later 
  to 
  deal 
  in 
  detail 
  with 
  the 
  species 
  referable 
  to 
  the 
  above- 
  

   named 
  genera, 
  but 
  would 
  observe 
  that 
  Zafra 
  seems 
  easily 
  limited, 
  

   though 
  the 
  species 
  vary 
  in 
  size, 
  sculpture, 
  and 
  shape. 
  Thus 
  some 
  

   are 
  very 
  small, 
  2 
  mm., 
  to 
  comparatively 
  large, 
  5 
  mm., 
  from 
  slender 
  to 
  

  

  