﻿296 
  Panama 
  Shells. 
  purpurid^. 
  

  

  Panama 
  ; 
  Jay. 
  

   Panama 
  ; 
  C. 
  B. 
  A. 
  ! 
  

   "We 
  collected 
  on 
  the 
  reef 
  275 
  specimens. 
  

  

  64. 
  ISuccmiim 
  saaigiimolentusii. 
  

  

  Synonymy. 
  

  

  Purpura 
  sanyuinolenta 
  ]JucL 
  in 
  Guer. 
  Mag. 
  Zool. 
  pi. 
  22. 
  

  

  f. 
  1. 
  ------- 
  - 
  1833. 
  

  

  PolUa 
  kccmastoma 
  Gray 
  in 
  Zool. 
  Beech. 
  Voy. 
  p. 
  112. 
  1839. 
  

  

  Buccinum 
  hceviaatoma 
  Reeve 
  Conch. 
  Icon. 
  pi. 
  7. 
  f. 
  46. 
  Dec. 
  1846. 
  

  

  Janelii 
  Val. 
  Voy. 
  Venus. 
  Moll.pl. 
  6. 
  f. 
  1. 
  1846. 
  

  

  -' 
  sanyuinolentum 
  Menke 
  in 
  Zeilscli. 
  Malak. 
  p. 
  180. 
  Dec. 
  1847. 
  

  

  Station. 
  — 
  Under 
  stones 
  at 
  low 
  water 
  ; 
  Cuming 
  ! 
  Eeeve. 
  

  

  A 
  few 
  of 
  our 
  specimens 
  were 
  found 
  alive 
  in 
  tlie 
  same 
  situa- 
  

   tion 
  ; 
  but 
  as 
  most 
  of 
  them 
  were 
  occupied 
  by 
  hermit 
  crabs, 
  at 
  

   low 
  water 
  mark, 
  it 
  is 
  probable 
  that 
  their 
  favorite 
  station 
  may 
  be 
  

   somewhat 
  lower. 
  

  

  Habitat. 
  — 
  Panama 
  ; 
  Cuming 
  ! 
  Reeve. 
  

  

  Mazatlan 
  ; 
  Melchers 
  ! 
  Menke. 
  

   Panama 
  ; 
  Jay. 
  

  

  Taboga 
  and 
  Panama; 
  C. 
  B. 
  A. 
  ! 
  

   We 
  collected 
  16 
  specimens. 
  

  

  65. 
  ^BucciiAum 
  Stinipsomanuin. 
  Nov. 
  Sp. 
  

  

  Shell 
  long 
  ovate-conic 
  : 
  rather 
  pale 
  slate 
  color, 
  more 
  or 
  less 
  

   white 
  above, 
  with 
  the 
  revolving 
  ridges 
  brownish 
  red 
  or 
  white 
  

   where 
  they 
  cross 
  the 
  ribs, 
  white 
  in 
  the 
  upper 
  half 
  of 
  the 
  labrum, 
  

   often 
  with 
  a 
  broad 
  white 
  spiral 
  band 
  on 
  the 
  middle 
  of 
  the 
  

   whorls 
  : 
  on 
  each 
  whorl 
  with 
  seven 
  or 
  eight 
  stout 
  transverse 
  

   ridges, 
  which 
  are 
  less 
  prominent 
  on 
  the 
  back 
  of 
  the 
  last 
  whorl 
  ; 
  

   with 
  several 
  spiral 
  linear 
  ridges, 
  of 
  Avhich 
  four 
  are 
  visible 
  on 
  

   the 
  penult 
  whorl, 
  which 
  are 
  obsolete 
  between 
  the 
  transverse 
  

   ridges, 
  and 
  are 
  more 
  numerous 
  and 
  smaller 
  anteriorly 
  ; 
  covered 
  

  

  