﻿of 
  certain 
  Land 
  Shells. 
  101 
  

  

  pears 
  to 
  be 
  a 
  Jamaica 
  type. 
  Helix 
  angustata 
  Fer. 
  is 
  said 
  to 
  

   occur 
  both 
  in 
  Hayti 
  and 
  in 
  Jamaica. 
  (Mke. 
  in 
  Zeitschr. 
  f. 
  

   Malak. 
  1845, 
  p. 
  61.) 
  We 
  have 
  never 
  seen 
  it 
  in 
  this 
  island. 
  

  

  We 
  are 
  also 
  somewhat 
  doubtful 
  of 
  the 
  identity 
  of 
  Cyclos- 
  

   toma 
  lincinellum 
  Lam. 
  v^^ith 
  C. 
  spinulosum 
  Ad., 
  and 
  of 
  C. 
  

   Banksianum 
  Sowb. 
  with 
  C. 
  hyacinthinum 
  Ad. 
  

  

  Several 
  species 
  of 
  Jamaica 
  shells, 
  described 
  by 
  Mr. 
  Sow- 
  

   erby, 
  are 
  said 
  by 
  him, 
  on 
  the 
  authority 
  of 
  Mr. 
  Gr. 
  C. 
  Bain- 
  

   bridge, 
  of 
  Liverpool, 
  to 
  inhabit 
  Demerara. 
  To 
  the 
  species 
  

   mentioned 
  by 
  us 
  on 
  pp. 
  47-9, 
  and 
  p. 
  108, 
  (Cont. 
  Conch.) 
  may 
  

   be 
  added 
  Cyclostoma 
  mirabile 
  Wood, 
  if, 
  as 
  we 
  now 
  suppose, 
  

   that 
  species 
  is 
  identical 
  with 
  C. 
  decussatulum 
  Ad. 
  In 
  the 
  ab- 
  

   sence 
  of 
  direct 
  information 
  concerning 
  the 
  shells 
  of 
  Mr. 
  Bain- 
  

   bridge, 
  we 
  must 
  be 
  allowed 
  to 
  doubt 
  whether 
  species, 
  which 
  

   inhabit 
  the 
  rocky 
  mountains 
  of 
  Jamaica, 
  do 
  also 
  inhabit 
  Dem- 
  

   erara. 
  

  

  The 
  following 
  species 
  also 
  are 
  known 
  to 
  us 
  to 
  inhabit 
  Ja- 
  

   maica, 
  but 
  are 
  said 
  to 
  occur 
  in 
  other 
  islands 
  : 
  Cylindrella 
  

   brevis 
  Pfr. 
  in 
  Martinique 
  and 
  Cuba 
  ; 
  Achatina 
  leucozonias 
  in 
  

   Martinique 
  ; 
  Dominicensis 
  in 
  Hayti 
  ; 
  and 
  A. 
  venusta 
  var. 
  

   unicolor 
  Pfr. 
  in 
  Demerara. 
  We 
  mention 
  only 
  those 
  examples 
  

   which 
  are 
  most 
  likely 
  to 
  be 
  erroneously 
  referred 
  to 
  other 
  

   islands. 
  

  

  We 
  suppose 
  the 
  following 
  species, 
  which 
  have 
  been 
  de- 
  

   scribed 
  by 
  one 
  of 
  us, 
  to 
  be 
  natives 
  of 
  Jamaica, 
  but 
  they 
  are 
  

   not 
  certainly 
  known 
  to 
  us 
  as 
  such. 
  Cyclostoma 
  Neivcombia- 
  

   num 
  was 
  received 
  from 
  Dr. 
  Newcomb 
  as 
  a 
  Jamaica 
  shell. 
  

   Cyclostoma 
  aurora 
  formed 
  a 
  part 
  of 
  a 
  valuable 
  collection 
  of 
  

   the 
  shells 
  of 
  Jamaica, 
  which 
  had 
  been 
  made 
  by 
  the 
  late 
  Mrs. 
  

   W. 
  J. 
  Wilkinson. 
  Cyclostoma 
  Tappanianum 
  was 
  presented 
  

   to 
  us 
  by 
  R. 
  Gr. 
  Marshall, 
  Esq., 
  of 
  Morant 
  Bay, 
  being 
  the 
  only 
  

   terrestrial 
  species 
  in 
  a 
  small 
  collection 
  of 
  supposed 
  Jamaica 
  

   shells, 
  which 
  belonged 
  to 
  the 
  late 
  Mr. 
  Houseman, 
  a 
  musician, 
  

   in 
  Kingston. 
  

  

  MAY, 
  1851. 
  9 
  

  

  