﻿MANGELIA. 
  Panama 
  Shells. 
  873 
  

  

  188. 
  Iflang-elia 
  d, 
  

  

  189. 
  mangelia 
  e, 
  

  

  190. 
  Iflang-elia 
  /, 
  

  

  191. 
  rflaii^elia 
  ne^lecta. 
  Nov. 
  sp. 
  

  

  Shell 
  subfusiform 
  : 
  pale 
  brownish 
  red 
  : 
  with, 
  on 
  each 
  whorl, 
  

   eight 
  or 
  nine 
  prominent 
  curved 
  ribs, 
  and 
  an 
  elevated 
  spiral 
  line 
  

   on 
  the 
  middle 
  of 
  the 
  whorls, 
  which 
  becomes 
  obsolete 
  on 
  the 
  

   last 
  whorl 
  ; 
  anteriorly 
  with 
  several 
  spiral 
  strioG 
  : 
  apex 
  acute 
  : 
  

   spire 
  with 
  the 
  outlines 
  moderately 
  convex 
  : 
  whorls 
  seven, 
  

   rather 
  convex, 
  with 
  a 
  distinct 
  suture 
  : 
  aperture 
  rather 
  narrow, 
  

   mostly 
  parallel 
  with 
  the 
  axis 
  of 
  the 
  spire 
  : 
  labrum 
  much 
  thick- 
  

   ened 
  within 
  and 
  without, 
  with 
  a 
  narrow 
  sinus 
  : 
  canal 
  very 
  

   short. 
  

  

  Mean 
  divergence 
  about 
  40°; 
  length 
  .2 
  inch; 
  breadth 
  .07 
  inch; 
  

   length 
  of 
  spire 
  .11 
  inch. 
  

  

  Station. 
  — 
  Unknown. 
  

  

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

  

  We 
  obtained 
  2 
  specimens 
  from 
  the 
  calcareous 
  sand 
  at 
  

   Panama 
  ; 
  also 
  other 
  2, 
  of 
  a 
  more 
  slender 
  variety. 
  

  

  This 
  is 
  one 
  of 
  the 
  many 
  species 
  whose 
  claim 
  to 
  a 
  place 
  in 
  the 
  

   genus 
  Mangelia 
  will 
  not 
  be 
  universally 
  conceded. 
  

  

  192. 
  jflan^elia 
  sulcosa? 
  

  

  Synonymy. 
  

  

  ? 
  Columbella 
  sulcosa 
  Sowb. 
  in 
  Proc. 
  Zool. 
  Soc. 
  Lond. 
  p. 
  118. 
  June 
  1832. 
  

  

  ? 
  Duel, 
  in 
  Chenu 
  El. 
  Conch, 
  pi. 
  21. 
  f. 
  5. 
  6. 
  

  

  ? 
  Sowb. 
  Thes. 
  Conch, 
  p. 
  141. 
  pi. 
  40. 
  f. 
  165. 
  

  

  The 
  color 
  of 
  our 
  specimens 
  is 
  a 
  very 
  deep 
  green 
  between 
  the 
  

   cream-colored 
  ribs, 
  and 
  brownish 
  towards 
  the 
  apex, 
  which 
  is 
  

   nearly 
  colorless. 
  The 
  "inM 
  canali 
  distincto" 
  and 
  "intemo 
  

  

  