﻿which 
  inhabit 
  Jamaica. 
  79 
  

  

  inner 
  peritreme 
  moderately 
  produced, 
  and 
  the 
  outer 
  peritreme 
  

   small 
  and 
  expanded 
  into 
  the 
  plane 
  of 
  the 
  aperture 
  : 
  umbilicus 
  

   small. 
  

  

  Mean 
  divergence 
  about 
  40° 
  ; 
  length 
  .36 
  inch 
  ; 
  greatest 
  

   breadth 
  .2 
  inch 
  ; 
  least 
  breadth 
  .16 
  inch. 
  

  

  For 
  this 
  and 
  several 
  other 
  new 
  and 
  interesting 
  species 
  we 
  

   are 
  indebted 
  to 
  Archibald 
  Campbell. 
  Esq., 
  of 
  New 
  Hope, 
  West- 
  

   moreland. 
  

  

  Cyclostoma 
  xanthostoma 
  and 
  C. 
  ignilahre 
  have 
  white- 
  

   lipped 
  varieties, 
  each 
  of 
  which 
  may 
  be 
  designated 
  by 
  the 
  name 
  

  

  ALBILABRE. 
  

  

  Cyclostoma 
  proximum 
  (p. 
  8, 
  C. 
  C.) 
  is 
  perhaps 
  only 
  a 
  vari- 
  

   ety 
  of 
  C. 
  fascia, 
  Gray. 
  

  

  Cyclostoma 
  nitens 
  (p. 
  8, 
  C. 
  C.) 
  appears 
  to 
  be 
  connected 
  

   with 
  C. 
  AvgustcB 
  (p. 
  7, 
  C. 
  C.) 
  by 
  intermediate 
  specimens, 
  and 
  

   is 
  probably 
  only 
  a 
  variety. 
  Another 
  variety 
  of 
  C. 
  Augustee 
  

   may 
  be 
  designated 
  by 
  the 
  name 
  of 
  testudineum. 
  Its 
  sculp- 
  

   ture 
  is 
  more 
  prominent, 
  and 
  the 
  color 
  is 
  more 
  or 
  less 
  like 
  burnt 
  

   umber. 
  It 
  approximates 
  towards 
  C. 
  fascia. 
  

  

  The 
  rufous 
  or 
  red 
  lipped 
  varieties 
  of 
  Cyclostoma 
  Jayanum 
  

   and 
  C. 
  Augustm 
  may 
  be 
  designated 
  by 
  the 
  name 
  of 
  rufilabre. 
  

  

  Cyclostoma 
  Chevalieri. 
  Shell 
  ovate 
  conic 
  : 
  brown, 
  darker 
  

   at 
  the 
  summit, 
  white 
  along 
  the 
  suture, 
  around 
  the 
  umbilicus, 
  

   and 
  with 
  the 
  peritreme 
  white 
  ; 
  also 
  with 
  several 
  spiral 
  series 
  

   of 
  dark 
  brown 
  dots, 
  of 
  which 
  series 
  two 
  on 
  the 
  upper 
  whorls 
  

   and 
  three 
  on 
  the 
  last 
  are 
  most 
  conspicuous: 
  smooth 
  and 
  

   shining: 
  spire 
  rather 
  convex, 
  truncated 
  with 
  the 
  loss 
  of 
  more 
  

   than 
  two 
  whorls 
  ; 
  about 
  four 
  whorls 
  remaining, 
  which 
  are 
  

   quite 
  convex, 
  with 
  a 
  moderately 
  depressed 
  suture 
  : 
  aperture 
  

   nearly 
  circular 
  ; 
  the 
  inner 
  peritreme 
  slightly 
  developed 
  ; 
  outer 
  

   peritreme 
  smooth 
  and 
  widely 
  expanded, 
  (especially 
  above 
  and 
  

   on 
  the 
  left 
  side,) 
  well 
  appressed 
  to 
  the 
  penult 
  whorl 
  : 
  umbili- 
  

   cus 
  very 
  small. 
  

  

  Mean 
  divergence 
  about 
  45°; 
  length 
  .68 
  inch; 
  greatest 
  

   breadth 
  .48 
  inch 
  : 
  least 
  breadth 
  .35 
  inch. 
  

  

  