﻿138 
  PROCEEDINGS 
  OF 
  THE 
  MALACOLOGICAL 
  SOCIE'lT. 
  

  

  " 
  Alexia, 
  Leacli 
  MSS., 
  1819," 
  was 
  there 
  proposed 
  for 
  Vol.denticulata, 
  

   Phytia, 
  vea-pti^t 
  Ft/tliui, 
  and 
  ^^ 
  Jamini'a, 
  Browu, 
  not 
  llisso", 
  lankiiig 
  

   as 
  sj'nonyms; 
  whilst 
  for 
  the 
  following 
  genus 
  he 
  gave: 
  — 
  

  

  '^ 
  I,ei(conia,Gr&j, 
  1840. 
  Volvariu, 
  sp., 
  Flem. 
  Vohita 
  alha. 
  

  

  Jaminea 
  \_sic], 
  Leach 
  MSS. 
  Vol. 
  hidentata. 
  

  

  Ovatilla 
  [sic], 
  sp. 
  Bivon, 
  1832. 
  Ovat. 
  bidentata." 
  

  

  Forbes 
  & 
  Hanley 
  {Rist. 
  Brit. 
  Moll, 
  iv, 
  1852, 
  pp. 
  190-197) 
  

   referred 
  these 
  molluscs 
  to 
  Cotiovulns, 
  making 
  alba 
  of 
  the 
  Conch. 
  

   Diet, 
  a 
  synonym 
  of 
  bidentatus, 
  aud 
  ignoring 
  Gray's 
  sectional 
  names. 
  

  

  Moquiu-Tandon 
  in 
  1856 
  {Rist. 
  nat. 
  Moll. 
  France, 
  ii, 
  pp. 
  415-20) 
  

   included 
  these 
  shells 
  under 
  Caryckium, 
  putting 
  denticulaimn 
  in 
  the 
  

   section 
  Ovatella 
  (which 
  he 
  misquotes 
  as 
  Conulus, 
  sect. 
  Ovatella, 
  

   Gray) 
  and 
  bidentata, 
  which 
  he 
  misidentified 
  with 
  myosotis 
  of 
  

   Draparnaud, 
  under 
  the 
  section 
  Phytia 
  of 
  Gray. 
  He 
  took 
  no 
  note 
  

   of 
  alba. 
  

  

  In 
  1857 
  (Turton's 
  llanual, 
  new 
  edition, 
  pp. 
  192-196) 
  Gray 
  reverted 
  

   to 
  his 
  arrangement 
  of 
  1840, 
  making 
  alba, 
  however, 
  a 
  variety 
  of 
  

   bidentatas 
  and 
  restricting 
  it 
  to 
  that 
  of 
  Turton's 
  Conch. 
  Bid. 
  

  

  Gwyn 
  Jeffreys 
  {Bnt. 
  Conch., 
  v, 
  1869, 
  pp. 
  103-109) 
  elected 
  to 
  put 
  

   these 
  snails 
  under 
  the 
  genus 
  Ilelampus 
  of 
  Montfort, 
  making 
  alba 
  of 
  

   the 
  Conch. 
  Bid. 
  a 
  variety 
  of 
  bidentatus. 
  

  

  Of 
  the 
  most 
  recent 
  writers 
  of 
  the 
  group, 
  the 
  Marchese 
  di 
  

   Monterosato 
  {Nat. 
  Sicil., 
  xviii, 
  1906, 
  pp. 
  125-130) 
  has 
  adopted 
  Alexia 
  

   of 
  Leach 
  for 
  denticulatus, 
  Mont., 
  ])ut 
  myosotis, 
  Drap., 
  in 
  a 
  new 
  genus 
  

   Myosotella, 
  and 
  bidentatus, 
  Mont., 
  under 
  Leuconia 
  of 
  Gray. 
  

  

  Such 
  being 
  the 
  literary 
  history 
  of 
  the 
  question, 
  it 
  remains 
  to 
  

   determine 
  the 
  available 
  generic 
  names 
  for 
  the 
  two 
  forms. 
  It 
  is 
  

   a 
  pity 
  that 
  Leach's 
  original 
  manuscript 
  names 
  of 
  laminia 
  and 
  

   Alexia 
  cannot 
  be 
  revived. 
  Unfortunately 
  the 
  former 
  wiis 
  used 
  by 
  

   liisso 
  through 
  an 
  error 
  of 
  misinterpretation 
  in 
  1826 
  {Rist. 
  Exiro]). 
  

   merid., 
  iv, 
  p. 
  88) 
  for 
  certain 
  of 
  the 
  Pupillidse 
  before 
  Brown 
  in 
  1827 
  

   revived 
  it 
  for 
  a 
  mixed 
  group 
  that 
  iuclu'led 
  the 
  present 
  shells. 
  

   Bivona's 
  Ovatella 
  appears 
  conchologically 
  moie 
  closely 
  allied 
  to 
  the 
  

   myosotis 
  section 
  and 
  so 
  not 
  available. 
  Hence 
  recourse 
  must 
  be 
  had 
  

   to 
  Gray's 
  name 
  Leuconia. 
  For 
  the 
  other 
  section 
  Leach's 
  original 
  

   Alexia 
  was 
  only 
  made 
  valid 
  by 
  Gray's 
  publication 
  of 
  it 
  in 
  1847, 
  by 
  

   which 
  time 
  it 
  had 
  been 
  anticipated 
  by 
  Stephens, 
  who 
  in 
  1835 
  

   employed 
  it 
  for 
  a 
  genus 
  of 
  Coleoptera, 
  so 
  that, 
  as 
  pointed 
  out 
  by 
  one 
  

   of 
  us 
  in 
  1903, 
  Gray's 
  Phytia 
  is 
  the 
  only 
  choice. 
  

  

  The 
  essential 
  synonymy 
  is, 
  therefore, 
  as 
  follows: 
  — 
  

  

  PHYTIA, 
  Gray, 
  1821. 
  

  

  1801. 
  Auricula 
  mi/osotis, 
  Draparnaud, 
  Tabl. 
  Moll. 
  France, 
  p. 
  53 
  ; 
  

  

  — 
  id. 
  Hist. 
  Moll. 
  France, 
  p. 
  56, 
  pi. 
  iii, 
  f. 
  16 
  aud 
  17. 
  

   180.']. 
  Voluia 
  denticulfUa, 
  Montagu, 
  Test. 
  Brit., 
  p. 
  234, 
  pi. 
  xx, 
  f. 
  5. 
  

   1807. 
  Carichium 
  myosotis, 
  Ferussac, 
  Kssai 
  method. 
  Conch 
  , 
  p. 
  54. 
  

   1817. 
  Auricella 
  myosotis, 
  Jurine, 
  Helvet. 
  Alman., 
  p. 
  34. 
  

  

  Carychium 
  myosotis, 
  Blainville, 
  Diet. 
  Sci. 
  Nat., 
  vii, 
  p. 
  188. 
  

   1819. 
  Alexia 
  denticulata, 
  Leach, 
  IMoll. 
  Brit. 
  Synop. 
  (proofs), 
  p. 
  135, 
  

   1821. 
  Phytia 
  denticulata, 
  Gray, 
  Lond. 
  Med. 
  Bepos., 
  xv, 
  p. 
  231. 
  

  

  