﻿CANCELLARIA. 
  Panama 
  Shells. 
  357 
  

  

  spiral 
  bands 
  of 
  white 
  : 
  with, 
  on 
  each 
  whorl, 
  about 
  thirty 
  narrow 
  

   prominent 
  transverse 
  ridges 
  more 
  or 
  less 
  inequidistant 
  ; 
  with 
  

   numerous 
  raised 
  spiral 
  lines, 
  of 
  which 
  five 
  are 
  seen 
  on 
  the 
  spire, 
  

   and 
  which 
  on 
  the 
  last 
  whorl 
  are 
  less 
  prominent 
  and 
  wide 
  than 
  

   the 
  transverse 
  ridges 
  : 
  apex 
  subacute 
  : 
  spire 
  with 
  the 
  outlines 
  

   nearly 
  rectilinear 
  : 
  whorls 
  six, 
  convex, 
  with 
  the 
  suture 
  subca- 
  

   naliculate 
  ; 
  last 
  whorl 
  rather 
  large 
  : 
  aperture 
  semiobovate, 
  with 
  

   long 
  sharp 
  ridges 
  within 
  on 
  the 
  right 
  side 
  : 
  labrum 
  sharp, 
  

   thickened 
  a 
  little 
  behind 
  the 
  edge, 
  scalloped 
  by 
  both 
  the 
  inter- 
  

   nal 
  and 
  the 
  external 
  sculpture 
  : 
  columella 
  stout, 
  with 
  three 
  

   plaits, 
  of 
  which 
  the 
  upper 
  one 
  is 
  lamelliform 
  and 
  very 
  promi- 
  

   nent, 
  and 
  the 
  lower 
  one 
  is 
  small 
  and 
  very 
  oblique 
  : 
  canal 
  short 
  : 
  

   with 
  a 
  small 
  umbilical 
  chink 
  bounded 
  by 
  the 
  raised 
  labrum 
  and 
  

   a 
  spiral 
  bridge. 
  

  

  Mean 
  divergence 
  about 
  68° 
  ; 
  length 
  1.05 
  inch 
  ; 
  breadth 
  .6^ 
  

   inch 
  ; 
  length 
  of 
  spire 
  .45 
  inch. 
  

  

  This 
  species 
  is 
  not 
  so 
  densely 
  and 
  finely 
  sculptured 
  as 
  C. 
  

   elegans 
  Sowb., 
  and 
  is 
  less 
  ventricose 
  than 
  C. 
  asperella 
  Lam. 
  

  

  Station. 
  — 
  Unknown. 
  

  

  Habitat. 
  — 
  Panama 
  ; 
  C. 
  B. 
  A. 
  ! 
  

   3 
  specimens 
  were 
  obtained. 
  

  

  155. 
  Cancellaria 
  clavatula. 
  

  

  Synonymy. 
  

  

  Cancellaria 
  clavatula 
  Sowb. 
  in 
  Proc. 
  Zool. 
  Soc. 
  Lond. 
  p. 
  52. 
  Mar. 
  1832. 
  

  

  Miill. 
  Synop. 
  Nov. 
  Test. 
  Viv. 
  p. 
  74. 
  1836. 
  

  

  Sowb. 
  Conch. 
  111. 
  No. 
  11. 
  pi. 
  10. 
  f. 
  12. 
  1841 
  . 
  

  

  Kiener 
  Iconog. 
  p. 
  31. 
  pi. 
  5. 
  f. 
  2. 
  

  

  Reeve 
  Conch. 
  Syst. 
  pi. 
  230. 
  f. 
  12. 
  1842. 
  

  

  Lam. 
  An. 
  sans 
  Vert. 
  IX. 
  416. 
  No. 
  23. 
  

  

  (Desh. 
  ed.) 
  1843. 
  

  

  Lam. 
  An. 
  sans 
  Vert. 
  IIL 
  Pt. 
  2. 
  p. 
  648. 
  

  

  No. 
  23. 
  (Desh. 
  ed. 
  tert.) 
  - 
  - 
  1844. 
  

  

  Sowb. 
  Thes. 
  Conch, 
  p. 
  445. 
  No. 
  20. 
  

  

  pi. 
  92. 
  f. 
  13. 
  pi. 
  95. 
  f. 
  67. 
  1848. 
  

  

  