﻿CHEMNITZIA. 
  Panama 
  Shells. 
  891 
  

  

  224. 
  Chemnitzia 
  gracilior. 
  Nov. 
  sp. 
  

  

  Shell 
  very 
  long, 
  conic 
  : 
  very 
  pale 
  yellowisli 
  brown 
  : 
  with, 
  on 
  

   each 
  whorl, 
  about 
  twenty-eight 
  slender 
  ribs, 
  which 
  terminate 
  

   abruptly 
  just 
  below 
  the 
  periphery 
  of 
  the 
  last 
  whorl 
  : 
  with 
  a 
  

   well 
  impressed 
  spiral 
  line 
  next 
  behind 
  the 
  anterior 
  termination 
  

   of 
  the 
  ribs, 
  and 
  a 
  few 
  obsolete 
  spiral 
  striae 
  : 
  spire 
  with 
  the 
  out- 
  

   lines 
  nearly 
  rectilinear 
  except 
  near 
  the 
  apex 
  : 
  whorls 
  twelve, 
  

   slightly 
  convex, 
  with 
  a 
  well 
  impressed 
  suture 
  : 
  aperture 
  ovate, 
  

   acute 
  above 
  : 
  labrum 
  very 
  thin 
  : 
  columella 
  a 
  little 
  curved 
  : 
  

   umbilicus 
  wanting. 
  

  

  Mean 
  divergence 
  about 
  13° 
  ; 
  length 
  .31 
  inch 
  ; 
  breadth 
  .06 
  

   inch 
  ; 
  length 
  of 
  spire 
  .255 
  inch. 
  

  

  Station. 
  — 
  Unknown. 
  

  

  Habitat— 
  PdJiom^ 
  ; 
  C. 
  B, 
  A. 
  ! 
  

  

  2 
  specimens 
  were 
  found 
  in 
  the 
  sand. 
  

  

  225. 
  Chemnitzia 
  major. 
  Nov. 
  sp. 
  

  

  Shell 
  conic, 
  long 
  : 
  dingy 
  white 
  : 
  with, 
  on 
  each 
  whorl, 
  about 
  

   twenty-four 
  stout 
  obtuse 
  approximate 
  ribs, 
  which 
  are 
  obsolete 
  

   anteriorly 
  ; 
  with 
  lightly 
  impressed 
  fine 
  spiral 
  strias 
  over 
  all 
  the 
  

   surface 
  except 
  the 
  summits 
  of 
  the 
  ribs 
  : 
  spire 
  with 
  the 
  outlines 
  

   rectilinear: 
  whorls 
  fifteen, 
  moderately 
  convex, 
  with 
  a 
  weU 
  

   impressed 
  suture 
  : 
  aperture 
  subovate 
  : 
  labrum 
  thin 
  : 
  columella 
  

   nearly 
  straight 
  : 
  umbUicus 
  wanting. 
  

  

  Mean 
  divergence 
  about 
  17° 
  ; 
  length 
  .38 
  inch 
  ; 
  breadth 
  .09 
  

   inch 
  ; 
  length 
  of 
  spire 
  .81 
  inch. 
  

  

  Station. 
  — 
  Unknown. 
  

  

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

   1 
  specimen 
  only 
  was 
  found. 
  

  

  226. 
  Chemnitzia 
  marg^nata. 
  Nov. 
  sp. 
  

  

  Shell 
  fusiform 
  cylindric 
  ; 
  dingy 
  white 
  : 
  with, 
  on 
  each 
  whorl, 
  

  

  