﻿TRiPHORis. 
  Panama 
  Shells. 
  383 
  

  

  Hahitat 
  — 
  Panama 
  ; 
  C. 
  B. 
  A. 
  ! 
  

  

  3 
  mature 
  and 
  2 
  young 
  shells 
  were 
  found. 
  

  

  208. 
  Triphoris 
  inconspicuus. 
  Nov. 
  sp. 
  

  

  Shell 
  long, 
  ovate 
  fusiform, 
  sinistrorsal 
  : 
  blackish 
  red, 
  fading 
  

   into 
  a 
  cinereous 
  color 
  : 
  with 
  three 
  spiral 
  equidistant 
  strongly 
  

   nodulous 
  ridges 
  on 
  each 
  whorl, 
  of 
  which 
  the 
  intermediate 
  one 
  is 
  

   wanting 
  on 
  the 
  upper 
  whorls, 
  and 
  three 
  or 
  four 
  additional 
  

   scarcely 
  nodulous 
  ridges 
  anteriorly 
  ; 
  with 
  about 
  twenty 
  or 
  

   twenty-two 
  transverse 
  less 
  prominent 
  ridges 
  on 
  each 
  whorl 
  : 
  

   apex 
  very 
  acute 
  : 
  spire 
  with 
  curvilinear 
  outlines: 
  whorls 
  twelve, 
  

   moderately 
  convex, 
  with 
  the 
  suture 
  indistinct 
  ; 
  last 
  whorl 
  with 
  

   the 
  periphery 
  subangular: 
  aperture 
  subrhombic, 
  with 
  a 
  sinus 
  

   above 
  : 
  labrum 
  much 
  advanced 
  : 
  canal 
  deep, 
  short. 
  

  

  Mean 
  divergence 
  about 
  22°; 
  length 
  .165 
  inch; 
  breadth 
  

   .055 
  inch; 
  length 
  of 
  spire 
  .13 
  inch. 
  

  

  Station. 
  — 
  Under 
  stones 
  near 
  low 
  water 
  mark, 
  

  

  Hahitat 
  — 
  Taboga 
  and 
  Panama 
  ; 
  C. 
  B. 
  A. 
  ! 
  

   16 
  specimens 
  were 
  collected. 
  

  

  209. 
  Triphoris 
  infrequent. 
  Nov. 
  sp. 
  

  

  Shell 
  long, 
  conic 
  : 
  blackish 
  red: 
  with 
  three 
  excessively 
  promi- 
  

   nent 
  much 
  compressed 
  spiral 
  ridges 
  on 
  the 
  spire, 
  and 
  another 
  on 
  

   the 
  periphery 
  of 
  the 
  last 
  whorl 
  ; 
  with 
  about 
  sixteen 
  or 
  eighteen 
  

   less 
  prominent 
  transverse 
  ridges 
  on 
  each 
  whorl 
  ; 
  anteriorly 
  with- 
  

   out 
  sculpture 
  : 
  apex 
  acute 
  : 
  spire 
  with 
  the 
  outlines 
  nearly 
  rec- 
  

   tilinear 
  : 
  whorls 
  thirteen, 
  nearly 
  flat, 
  with 
  the 
  suture 
  indistinct 
  ; 
  

   last 
  whorl 
  very 
  short 
  : 
  aperture 
  subquadrate 
  : 
  labrum 
  scalloped 
  

   by 
  the 
  spiral 
  ridges 
  : 
  canal 
  rather 
  wide, 
  very 
  short. 
  

  

  Mean 
  divergence 
  about 
  20° 
  ; 
  length 
  .13 
  inch 
  ; 
  breadth 
  .045 
  

   inch 
  ; 
  length 
  of 
  spire 
  .105 
  inch. 
  

  

  Station. 
  — 
  Unknown. 
  

  

  Hahitat 
  — 
  Panama 
  ; 
  C. 
  B. 
  A. 
  ! 
  

   2 
  specimens 
  were 
  found. 
  

  

  