﻿6.3 
  

  

  NOTES 
  ON 
  THE 
  FAMILY 
  AMPULLAEIID.E. 
  

  

  I)}" 
  G. 
  J}. 
  SowKiMiv, 
  r.L.S. 
  

  

  (Continued 
  from 
  Vol. 
  VIII, 
  j^}- 
  345-364, 
  and 
  Vol. 
  IX, 
  pp. 
  56-64.) 
  

  

  Read 
  14th 
  April, 
  1916. 
  

  

  Genus 
  LANLSTES, 
  Montfort, 
  1810. 
  

   The 
  genus 
  Lanistes 
  embraces 
  all 
  the 
  sinistral 
  species 
  of 
  the 
  family/ 
  

   and 
  I 
  see 
  no 
  valid 
  reason 
  for 
  separating 
  Iteladonnis 
  (Swainson) 
  from 
  

   it 
  ; 
  still 
  less 
  can 
  I 
  agree 
  with 
  13ourguignat 
  in 
  dropping 
  the 
  name 
  

   Lanistes 
  in 
  favour 
  of 
  lleladomus. 
  Eourguignat 
  gives 
  as 
  his 
  reason 
  

   that 
  the 
  prior 
  name 
  was 
  used 
  by 
  Humphrey 
  {Museum 
  Calonnianum, 
  

   1797) 
  for 
  a 
  species 
  of 
  MytUus, 
  but 
  it 
  has 
  been 
  veiy 
  properly 
  decided 
  

   that 
  these 
  mere 
  catalogue 
  names 
  should 
  have 
  no 
  status 
  as 
  to 
  priority. 
  

   Moreover, 
  my 
  copy 
  of 
  the 
  Mus. 
  Calonn. 
  makes 
  no 
  mention 
  of 
  

   " 
  La7iistes'\ 
  but 
  '•'■ 
  Lanatus 
  " 
  stands 
  for 
  a 
  variety 
  of 
  3lytilus 
  discors. 
  

  

  The 
  genus 
  Leroya, 
  Grandidier 
  (Bull. 
  Soc. 
  Malac. 
  France, 
  iv, 
  1887-, 
  

   p. 
  185), 
  1 
  place 
  as 
  a 
  sub-genus 
  having 
  spiral 
  sculpturation. 
  

  

  In 
  compiling 
  the 
  following 
  list 
  of 
  species 
  and 
  synonyms 
  I 
  have 
  

   been 
  compelled, 
  after 
  comparing 
  numerous 
  examples, 
  to 
  place 
  in 
  the 
  

   synonymy 
  many 
  names 
  that 
  have 
  generally 
  been 
  accepted 
  as 
  applied 
  

   to 
  valid 
  species. 
  There 
  are 
  others 
  of 
  which 
  I 
  have 
  not 
  seen 
  sufficient 
  

   numbers 
  to 
  enable 
  me 
  to 
  decide 
  whether 
  they 
  are 
  good 
  species 
  or 
  

   not; 
  these 
  I 
  have 
  allowed 
  provisionally 
  to 
  stand. 
  

  

  1. 
  Lanistes 
  caeinatus, 
  Olivier. 
  

  

  Helix 
  hoUeniana, 
  Chemnitz, 
  Conch. 
  Cab., 
  vol. 
  ix, 
  1786, 
  p. 
  83 
  [noii 
  

  

  binom.]. 
  

   Cyclostoma 
  earinafum, 
  Olivier, 
  Voy. 
  Emp, 
  Ottom., 
  vol. 
  ii, 
  1804, 
  p. 
  39. 
  

   Ampidlaria 
  carinata, 
  Lamarck, 
  Anim. 
  sans 
  Vert., 
  vol. 
  vi, 
  pt. 
  2, 
  1822, 
  

  

  p. 
  179. 
  

   A. 
  lolte7iiana, 
  Philippi, 
  Mon. 
  Amp., 
  1850, 
  jd. 
  20, 
  pi. 
  vi, 
  figs. 
  4, 
  5. 
  

   A. 
  agyplica, 
  Ehrenberg, 
  [MS. 
  in] 
  Mus. 
  Eerol., 
  Jickeli, 
  Fauna 
  

  

  Moll. 
  N.-O. 
  Afrika, 
  Nova 
  Acta 
  Acad. 
  Coes.-Leop., 
  xxxvii, 
  1874, 
  

  

  p. 
  227. 
  

   Meladotjius 
  boUe7uanus, 
  Eourguignat, 
  Moll. 
  Egypte. 
  1879, 
  p. 
  41. 
  

   Ampullaria 
  bicarmata, 
  Nevill, 
  Moll. 
  Ind. 
  Mus. 
  Calcutta, 
  Pt. 
  ii, 
  1884, 
  

  

  p. 
  14. 
  This 
  is 
  scarcely 
  sepai'able 
  even 
  as 
  a 
  varietv. 
  The 
  

  

  peripheral 
  and 
  umbilical 
  keels 
  are 
  generally 
  more 
  or 
  less 
  

  

  prominent 
  in 
  the 
  earlier 
  stages 
  of 
  development. 
  

   A. 
  depressa, 
  Nevill, 
  Moll. 
  Ind. 
  INIus. 
  Calcutta, 
  Pt. 
  ii, 
  1884, 
  p. 
  14. 
  

  

  The 
  more 
  or 
  less 
  depressed 
  examples 
  cannot 
  be 
  definitely 
  

  

  separated 
  from 
  the 
  typical 
  form. 
  

  

  ' 
  The 
  only 
  sinistral 
  Ampullaria 
  of 
  which 
  I 
  have 
  heard 
  is 
  a 
  " 
  subvar. 
  

   sinistrorsa 
  " 
  of 
  A. 
  globosa, 
  described 
  by 
  Nevill 
  in 
  the 
  Indian 
  Museum, 
  

   Calcutta, 
  which 
  is 
  probably 
  unique 
  (Hand 
  List 
  Moll. 
  Ind. 
  Mus., 
  pt. 
  ii, 
  

   1884, 
  p. 
  2). 
  

  

  