﻿HIPPONYX. 
  Panama 
  Shells. 
  441 
  

  

  gular 
  striae 
  of 
  growth 
  ; 
  without 
  spiral 
  striae 
  : 
  apex 
  minute, 
  

   obtuse, 
  prominent 
  : 
  whorls 
  two, 
  very 
  convex, 
  with 
  a 
  well 
  

   impressed 
  suture 
  ; 
  last 
  whorl 
  very 
  oblique, 
  much 
  inflated 
  and 
  

   very 
  convex 
  : 
  aperture 
  contracted, 
  yet 
  exhibiting 
  the 
  spiral 
  

   columella 
  to 
  the 
  apex 
  ; 
  columellar 
  side 
  of 
  the 
  aperture 
  abruptly 
  

   arcuated. 
  

  

  Length 
  obliquely 
  .45 
  inch 
  ; 
  breadth 
  obliquely 
  .81 
  inch. 
  

  

  Station. 
  — 
  Unknown. 
  

  

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

  

  1 
  specimen 
  was 
  found. 
  

  

  Family— 
  CALYPTR^ID^. 
  

  

  326. 
  Hipponyx 
  . 
  Sp. 
  indet. 
  

  

  We 
  found 
  of 
  this 
  species 
  only 
  2 
  small 
  specimens, 
  which 
  pro- 
  

   bably 
  are 
  immature. 
  The 
  spire 
  has 
  more 
  than 
  two 
  whorls. 
  

   They 
  may 
  be 
  the 
  young 
  of 
  Hipponyx 
  suhrufa 
  Sowb. 
  Lam. 
  ? 
  

   The 
  Lamarckian 
  Pileopsis 
  suhrufa 
  is 
  probably 
  the 
  Caribbean 
  

   species, 
  of 
  which 
  Mr. 
  Sowerby's 
  species 
  is 
  the 
  Pacific 
  analogue. 
  

  

  327. 
  Hipponyx 
  barbata 
  ? 
  

  

  Synonymy. 
  

  

  Hipponyx 
  barbata 
  ? 
  Sowb. 
  in 
  Proc. 
  Zool. 
  Soc. 
  Lond. 
  p. 
  5, 
  Jan. 
  1835. 
  

  

  —? 
  Sowb. 
  Thes. 
  Conch, 
  p. 
  369. 
  No. 
  1. 
  pi. 
  73. 
  f. 
  

  

  26, 
  27. 
  1846. 
  

  

  Our 
  shells 
  correspond 
  very 
  nearly 
  to 
  the 
  description 
  and 
  

   figures 
  by 
  Sowerby. 
  Yet 
  they 
  may 
  be 
  distinct. 
  It 
  will 
  be 
  

   seen 
  that 
  they 
  belong 
  to 
  a 
  distinct 
  zoological 
  province. 
  Our 
  

   specimens 
  also 
  resemble 
  Pileopsis 
  pilosus 
  Desh. 
  in 
  Guer. 
  May 
  

   1832, 
  pi. 
  19. 
  

  

  Station. 
  — 
  On 
  stones 
  and 
  shells 
  near 
  low 
  water 
  mark. 
  

  

  Habitat. 
  — 
  Ad 
  Insulas 
  Maris 
  Pacifici. 
  Found 
  on 
  coral 
  reefs 
  

   around 
  Toobouai, 
  one 
  of 
  the 
  Society 
  Islands 
  ; 
  

   Cuming 
  ! 
  Sowerby. 
  

  

  JULY, 
  1852. 
  38 
  A»K. 
  Ltc. 
  Nat. 
  Hist. 
  

  

  