﻿64 
  

  

  NOTE 
  ON 
  THE 
  ERATO 
  GUTTULA 
  OF 
  SOWERBY 
  AND 
  ON 
  

  

  MABGINELLA 
  SCHEPMANI, 
  N.N. 
  FOR 
  J/. 
  ABYSSICOLA, 
  

   8CHEPMAN. 
  

  

  Ey 
  J. 
  11. 
  LK 
  B. 
  Tojir.ix, 
  M.A., 
  F.E.S. 
  

  

  Bead 
  9th 
  June, 
  1916. 
  

   I. 
  Ekato 
  gdttula, 
  Sowerby. 
  

  

  Sowerby's 
  Erato 
  gtiitula^ 
  was 
  correctly 
  referred 
  to 
  tlie 
  genus 
  

   Marginella 
  by 
  Weiukauff,- 
  but 
  he 
  is 
  wrong 
  iu 
  suggesting 
  its 
  identity 
  

   Avith 
  31. 
  osteri, 
  Jouss., 
  or 
  M. 
  serrata. 
  Gask. 
  Smith 
  ^ 
  correctly 
  unites 
  

   it 
  with 
  j\f. 
  triplicata, 
  Gask. 
  Sowerby's 
  figure 
  is 
  all 
  but 
  unmistakable, 
  

   and 
  quite 
  lately 
  I 
  found 
  an 
  interesting 
  confirmation 
  of 
  Smith's 
  

   verdict 
  on 
  an 
  old 
  tablet 
  from 
  Dr. 
  Gray's 
  collection 
  in 
  one 
  of 
  the 
  

   British 
  Museum 
  drawers, 
  marked 
  '''Marginella 
  guttula, 
  Sowerby, 
  Isle 
  

   of 
  France 
  ", 
  and 
  bearing 
  examples 
  of 
  the 
  shell 
  we 
  generallj' 
  know 
  as 
  

   M. 
  triplicata, 
  Gask. 
  Eor 
  the 
  future 
  the 
  species 
  must 
  be 
  called 
  

   31. 
  guttula, 
  Sow., 
  since 
  this 
  name 
  is 
  twelve 
  years 
  earlier 
  than 
  

   Gaskoin's. 
  

  

  This 
  change 
  invalidates 
  31. 
  guttula, 
  lleeve 
  (1865), 
  wliich 
  I 
  regard 
  

   as 
  a 
  perfectly 
  distinct 
  species, 
  and 
  not 
  a 
  variety 
  of 
  31. 
  aveyia, 
  Kiener, 
  

   as 
  indicated 
  by 
  Tryon 
  and 
  others. 
  I 
  propose, 
  therefore, 
  to 
  rename 
  it 
  

   3[. 
  pericalles. 
  Very 
  beautiful 
  living 
  specimens 
  of 
  it 
  were 
  collected 
  in 
  

   Bermuda 
  by 
  Colonel 
  Peile. 
  

  

  II. 
  Marginella 
  abyssicola, 
  Schepman. 
  

  

  This 
  species 
  is 
  described 
  in 
  the 
  Prosohrancliia 
  of 
  the 
  Sibor/a 
  Expedi- 
  

   tion, 
  pt. 
  iv, 
  p. 
  260, 
  pi. 
  xviii, 
  fig. 
  8 
  (September, 
  1911), 
  from 
  a 
  single 
  

   example 
  dredged 
  in 
  the 
  Banda 
  Sea. 
  Locard,* 
  however, 
  described 
  

   a 
  Gibherula 
  ahi/saicola 
  in 
  1897 
  from 
  the 
  Travaillenr 
  and 
  Talisman 
  

   Expedition, 
  and 
  since 
  Gibherula 
  is, 
  in 
  my 
  opinion, 
  a 
  division 
  of 
  very 
  

   slight 
  importance, 
  and 
  certainly 
  not 
  of 
  generic 
  value, 
  I 
  propose 
  to 
  

   call 
  the 
  Siboga 
  shell 
  Marginella 
  sclfpnumi, 
  after 
  the 
  painstaking 
  

   author 
  of 
  the 
  monograpli. 
  

  

  ^ 
  Conch. 
  lUust., 
  Cyprseadae, 
  p. 
  16, 
  pi. 
  vii, 
  fig. 
  50. 
  

  

  - 
  Coneh. 
  Cab., 
  p. 
  156. 
  

  

  •' 
  Proc. 
  Malac. 
  Soc, 
  vol. 
  ix, 
  p. 
  21. 
  

  

  * 
  Exp. 
  Sci. 
  du 
  Travailleur 
  et 
  du 
  Talisman, 
  vol. 
  i, 
  p. 
  130, 
  pi. 
  iv, 
  figs. 
  22-5. 
  

  

  