﻿Descriptions 
  of 
  new 
  species 
  and 
  varieties 
  of 
  Shells, 
  which 
  

   inhabit 
  Jamaica. 
  By 
  C, 
  B. 
  Adams, 
  Professor 
  of 
  Zoology, 
  

   &c., 
  in 
  Amherst 
  College. 
  Read 
  before 
  the 
  New-York 
  Ly- 
  

   ceum 
  of 
  Natural 
  History, 
  Oct. 
  21st, 
  1850. 
  

  

  The 
  following 
  descriptions 
  are 
  in 
  continuation 
  of 
  the 
  Con- 
  

   tributions 
  TO 
  CoNciioLOGY, 
  which 
  were 
  published 
  by 
  the 
  writer 
  

   in 
  seven 
  numbers, 
  from 
  Sept. 
  1849 
  to 
  April 
  1850. 
  They 
  com- 
  

   prise 
  the 
  more 
  important 
  of 
  the 
  undescribed 
  types 
  of 
  the 
  land 
  

   and 
  fresh 
  water 
  shells 
  of 
  Jamaica, 
  which 
  are 
  accumulating 
  

   for 
  a 
  proposed 
  monograph 
  of 
  the 
  land 
  and 
  fresh 
  water 
  shells 
  

   of 
  that 
  island, 
  and 
  such 
  of 
  the 
  marine 
  species 
  as 
  are 
  believed 
  

   to 
  be 
  undescribed. 
  

  

  I 
  take 
  this 
  opportunity 
  to 
  explain 
  that 
  three 
  species 
  of 
  the 
  

   land 
  shells 
  of 
  Jamaica 
  had 
  received 
  the 
  names 
  of 
  persons, 
  both 
  

   in 
  the 
  original 
  manuscript 
  descriptions, 
  and 
  in 
  labels 
  with 
  

   which 
  specimens 
  were 
  distributed. 
  But 
  at 
  the 
  request 
  of 
  the 
  

   late 
  lamented 
  Dr. 
  Binney, 
  whose 
  name 
  had 
  been 
  used, 
  and 
  

   who 
  deemed 
  it 
  inexpedient 
  to 
  name 
  species 
  in 
  this 
  manner, 
  

   other 
  names 
  for 
  these 
  species 
  were 
  substituted, 
  as 
  the 
  article 
  

   went 
  to 
  press. 
  Unfortunately 
  the 
  first 
  names, 
  taken 
  from 
  the 
  

   labels, 
  were 
  published 
  by 
  Dr. 
  Pfeiffer. 
  These 
  are 
  now 
  sup- 
  

   posed 
  by 
  some 
  writers 
  to 
  have 
  priority 
  ; 
  but 
  by 
  attention 
  to 
  

   the 
  dates, 
  it 
  will 
  be 
  perceived, 
  that 
  the 
  names 
  published 
  in 
  

   the 
  Proc. 
  Best. 
  Soc. 
  Jan. 
  1845, 
  have 
  priority. 
  They 
  were 
  in 
  

   fact 
  published 
  before 
  the 
  shells 
  could 
  have 
  been 
  received 
  in 
  

   Europe. 
  I 
  can 
  only 
  regret 
  having 
  thus 
  inadvertently 
  caused 
  

   the 
  existence 
  of 
  synonymes. 
  The 
  following 
  are 
  the 
  species 
  : 
  

  

  Cyclostoma 
  pulchrius 
  Ad. 
  ; 
  Syn. 
  C. 
  Binney 
  anum 
  Pfr. 
  

  

  Cylindrella 
  nobilior 
  (Pupa) 
  Ad. 
  ; 
  Syn. 
  C. 
  Binneyana 
  Pfr. 
  

  

  Helix 
  arboreoides 
  Ad. 
  ; 
  Syn. 
  H. 
  Haldemaniana 
  Pfr. 
  

  

  In 
  the 
  same 
  article, 
  Achatina 
  Grijfithii 
  was 
  erroneously 
  

  

  