﻿133 
  

  

  0\ 
  HELIX 
  REVEL 
  AT 
  A, 
  BBITT. 
  AUCTT. 
  {NON 
  FERUSSAC, 
  NEC 
  

   AIICHAUD) 
  AND 
  THE 
  VALIDITY 
  OF 
  BELLAMY'S 
  NAME 
  OF 
  

   HELIX 
  SUb\wSCENS 
  IN 
  LIEU 
  OF 
  IT 
  FOR 
  THE 
  BRITISH 
  

   MOLLUSC. 
  

  

  By 
  A. 
  S. 
  Kenkaud, 
  F.G.S., 
  and 
  B. 
  B. 
  Woodwaiu), 
  F.L.S. 
  

   Read 
  14th 
  March, 
  1919. 
  

   Rkgrettable 
  as 
  the 
  supercessiou 
  of 
  a 
  familiar 
  and 
  loug-establislied 
  " 
  

   luolluscau 
  name 
  is, 
  it 
  is 
  unavoidable 
  when 
  that 
  name 
  proves 
  to 
  have 
  

   been 
  based 
  on 
  an 
  original 
  misidentification. 
  Such 
  ^vas 
  the 
  case 
  

   with 
  Helix 
  sericea, 
  Drap., 
  and 
  R. 
  rufescens, 
  Penn., 
  whilst 
  now 
  

   II. 
  revelata, 
  Ferussac 
  (or 
  Miehaud) 
  has 
  simih.rly 
  to 
  be 
  removed 
  

   from 
  the 
  British 
  list, 
  and 
  the 
  same 
  fate 
  awt.its 
  yet 
  a 
  few 
  others 
  to 
  

   be 
  dealt 
  with 
  later. 
  . 
  • 
  ^ 
  i 
  

  

  The 
  case 
  concerning 
  the 
  speciHc 
  name 
  m 
  question 
  stands 
  as 
  

  

  follows: 
  — 
  _,. 
  . 
  inni 
  T 
  

  

  Ferussacinhis 
  Tahleau 
  de 
  la 
  famille 
  des 
  Lunm-ons, 
  1821, 
  January 
  

   edition, 
  p. 
  48 
  (June 
  edition, 
  p. 
  44), 
  under 
  Helix, 
  sub-gen. 
  Helicella, 
  

   " 
  'de, 
  groupe 
  Les 
  Hygromanes, 
  Hygromanes," 
  cites: 
  

  

  "No. 
  273, 
  REVELATA, 
  nobis. 
  ^^ 
  

  

  Habit. 
  La 
  France, 
  les 
  environs 
  de 
  Pans 
  et 
  d' 
  Augers. 
  

   Neither 
  figure 
  nor 
  description 
  is 
  given. 
  . 
  ,, 
  , 
  

  

  In 
  1831 
  Michaud 
  in 
  his 
  Complement 
  de 
  I'Histotre 
  naiurelle 
  des 
  

   Mollmqim. 
  . 
  . 
  . 
  de 
  la 
  France, 
  de 
  J. 
  P. 
  R. 
  Draparnmd 
  describes 
  

   (pp. 
  27-28) 
  and 
  figures 
  (pi. 
  xv, 
  f. 
  6-8) 
  what 
  he 
  considered 
  to 
  be 
  

   Ferussac's 
  shell, 
  giving 
  as 
  additional 
  locality 
  "Les 
  valons 
  des 
  

   Alpes", 
  and 
  adding 
  "Elle 
  est 
  rare". 
  

  

  Gray, 
  and 
  after 
  him 
  Brown, 
  Forbes 
  & 
  Hanley 
  and 
  Reeve, 
  

   detennined 
  the 
  British 
  shell 
  as 
  being 
  identical 
  with 
  Ferussac 
  s, 
  

   ouided 
  thereto 
  obviously 
  by 
  Michaud's 
  description 
  and 
  figures. 
  

   Jeffreys, 
  however, 
  considered 
  Ferussac's 
  species 
  to 
  be 
  probably 
  

   identical 
  with 
  his 
  "5. 
  sericea, 
  Miiller", 
  i.e. 
  H. 
  granulaia. 
  Alder 
  

   [Brit. 
  Conch., 
  i, 
  pp. 
  202-204), 
  which 
  we 
  now 
  know 
  is 
  not 
  represented 
  

   on 
  the 
  Continent. 
  He 
  therefore 
  described 
  the 
  Lnglisb 
  shell 
  as 
  

   H. 
  revelata, 
  Michaud, 
  and 
  in 
  this 
  he 
  has 
  been 
  followed 
  by 
  iaylor 
  

  

  (Monograph 
  [iii], 
  p. 
  36). 
  • 
  

  

  Michaud's 
  brief 
  description 
  applies 
  m 
  nu.nv 
  respects 
  to 
  ou. 
  fo,m 
  

  

  which 
  has 
  so 
  long 
  passed 
  under 
  the 
  nan,e 
  he 
  adopted, 
  but 
  Ins 
  species 
  

  

  while 
  tallying 
  in 
  size 
  with 
  ours, 
  has 
  a 
  whorl 
  more 
  5 
  instead 
  of 
  4) 
  

  

  and 
  is 
  hii;lier 
  in 
  the 
  spire 
  as 
  the 
  measurements 
  and 
  figures 
  given 
  

  

  show. 
  Moreover, 
  the 
  localities 
  cited 
  are 
  not 
  among 
  those 
  in 
  which 
  

  

  our 
  shell 
  occurs. 
  Michaud's 
  species 
  is, 
  therefore, 
  not 
  identical 
  with 
  

  

  tlie 
  British 
  form, 
  which 
  has 
  been 
  misidentifaed 
  with 
  it. 
  Anyhow, 
  

  

  the 
  name 
  re.elata 
  cannot 
  stand 
  because 
  the 
  shell 
  it 
  was 
  proposed 
  for. 
  

  

  is 
  unknown, 
  and 
  Michaud's 
  adoption 
  of 
  it 
  does 
  not 
  make 
  it 
  valu 
  

  

  Bouchard-Chantereux 
  next, 
  in 
  1837 
  {Mem. 
  Soc. 
  Agrrc. 
  Boulogn^ 
  

  

  sor. 
  ir, 
  tom. 
  i, 
  p. 
  180), 
  quoted 
  the 
  spec.es, 
  as 
  of 
  Ferussac 
  and 
  

  

  Michaud,in 
  his 
  "Catalogue 
  des 
  MoUusques 
  . 
  . 
  . 
  observes 
  . 
  . 
  . 
  dans 
  

  

  