﻿which 
  inhabit 
  Jamaica. 
  93 
  

  

  color, 
  (or 
  black 
  in 
  the 
  upper 
  whorls, 
  and 
  lemon 
  yellow 
  in 
  the 
  

   lower 
  whorls, 
  when 
  containing 
  the 
  animal 
  alive) 
  : 
  with 
  nu- 
  

   merous 
  microscopic 
  striae: 
  spire 
  with 
  the 
  outlines 
  nearly 
  rec- 
  

   tilinear 
  : 
  apex 
  small 
  : 
  whorls 
  eight 
  or 
  nine, 
  moderately 
  convex, 
  

   with 
  a 
  well 
  impressed 
  suture 
  : 
  aperture 
  very 
  thin 
  and 
  sharp 
  : 
  

   columella 
  straight. 
  The 
  whorls 
  are 
  proportionally 
  shorter, 
  

   and 
  the 
  aperture 
  is 
  wider 
  than 
  in 
  B. 
  subula, 
  Pfr., 
  the 
  revolu- 
  

   tion 
  of 
  the 
  whorls 
  being 
  much 
  less 
  oblique. 
  It 
  nearly 
  resem- 
  

   bles 
  B. 
  octonoides. 
  

  

  Mean 
  divergence 
  about 
  18° 
  ; 
  length 
  .42 
  inch 
  ; 
  breadth 
  .12 
  

   inch 
  ; 
  length 
  of 
  aperture 
  .12 
  inch. 
  Inhabits 
  ganiens 
  in 
  King- 
  

   ston. 
  

  

  BuLiMus 
  MACROspiRA. 
  Shell 
  much 
  elongated, 
  conic 
  : 
  pale 
  

   horn 
  color, 
  or 
  brownish, 
  with 
  a 
  few 
  scattering 
  stripes 
  of 
  dark 
  

   brown: 
  shining, 
  with 
  excessively 
  minute 
  distant 
  striae: 
  spire 
  

   with 
  the 
  outlines 
  a 
  little 
  concave 
  above, 
  otherwise 
  slightly 
  

   curvilinear 
  : 
  apex 
  obtuse, 
  rather 
  small 
  : 
  whorls 
  tvt'elve, 
  a 
  little 
  

   convex, 
  with 
  a 
  well 
  impressed 
  suture; 
  last 
  whorl 
  short 
  : 
  ap- 
  

   erture 
  ovate, 
  rather 
  wide 
  : 
  labrum 
  thin 
  and 
  sharp 
  : 
  columella 
  

   nearly 
  straight. 
  

  

  Mean 
  divergence 
  about 
  18° 
  ; 
  length 
  .8 
  inch 
  ; 
  breadth 
  .22 
  

   inch 
  ; 
  length 
  of 
  aperture 
  .2 
  inch. 
  Inhabits 
  Maroon 
  Town, 
  in 
  

   St. 
  James, 
  

  

  Helix 
  Chittyana^ 
  var. 
  bicolor, 
  is 
  distinguished 
  by 
  a 
  white 
  

   lip, 
  and 
  by 
  having 
  the 
  whole 
  lower 
  surface, 
  except 
  the 
  whitish 
  

   zone 
  at 
  the 
  periphery, 
  of 
  a 
  blackish 
  brown. 
  

  

  A 
  series 
  of 
  specimens 
  connects 
  H. 
  cara 
  with 
  H. 
  amabilis 
  

   so 
  closely, 
  that 
  the 
  latter 
  cannot 
  be 
  entitled 
  to 
  rank 
  as 
  more 
  

   than 
  a 
  variety. 
  Some 
  which 
  have 
  the 
  color 
  of 
  H. 
  cara, 
  and 
  a 
  

   well 
  elevated 
  spire, 
  but 
  otherwise 
  resemble 
  H. 
  amabilis, 
  may 
  

   be 
  called 
  var. 
  media. 
  

  

  Helix 
  Swainsoniana. 
  Shell 
  depressed, 
  conic, 
  subplanu- 
  

   late 
  beneath 
  ; 
  with 
  a 
  moderately 
  sharpened 
  periphery, 
  on 
  both 
  

  

  MAY, 
  1851. 
  8 
  

  

  