﻿482 
  Panama 
  Shells. 
  ARCID^. 
  

  

  Area 
  aviculoides'RQ&vQ 
  Conch. 
  Icon. 
  pi. 
  10. 
  f. 
  63. 
  Mar. 
  1844. 
  

  

  jStation. 
  — 
  Muddy 
  bottom 
  at 
  the 
  depth 
  of 
  10 
  fathoms 
  ; 
  Cum- 
  

   ing 
  ! 
  Sowerby 
  : 
  also 
  Eeeve. 
  

  

  Hahitat 
  — 
  St. 
  Elena; 
  Cuming! 
  Sowerby 
  : 
  also 
  Eeeve. 
  

  

  Panama 
  ; 
  C. 
  B. 
  A. 
  ! 
  

   1 
  specimen 
  was 
  obtained, 
  which 
  is 
  too 
  young 
  to 
  be 
  confi- 
  

   dently 
  determined 
  without 
  a 
  series. 
  

  

  415. 
  Area 
  emarg^inata. 
  

  

  Synonymy. 
  

  

  Area 
  emarffinata 
  Sowb. 
  in 
  Proc. 
  Zool. 
  Soc. 
  Lond. 
  p. 
  20. 
  Feb. 
  1833. 
  

  

  Mull. 
  Syn. 
  Test. 
  Viv. 
  p. 
  180. 
  1836. 
  

  

  Reeve 
  Conch. 
  Icon. 
  pi. 
  4. 
  f. 
  26. 
  Jan. 
  1844. 
  

  

  Hanley 
  Descr. 
  Catal. 
  p. 
  161. 
  1845 
  ? 
  

  

  Orb. 
  Voy. 
  Amer. 
  Merid. 
  Moll. 
  p. 
  635. 
  1846. 
  

  

  Station. 
  — 
  Sandy 
  mud 
  at 
  the 
  depth 
  of 
  6 
  or 
  8 
  fathoms 
  ; 
  Cum- 
  

   ing 
  ! 
  Sowerby 
  : 
  also 
  Reeve. 
  

  

  Habitat. 
  — 
  Eeal 
  Llejos, 
  Atacamas, 
  Xipixapi, 
  Panama, 
  and 
  

   Gulf 
  of 
  California 
  ; 
  Cuming 
  ! 
  Sowerby 
  : 
  also 
  

   Eeeve. 
  

   Atacama, 
  Xipixapi, 
  and 
  Panama; 
  Cuming! 
  

  

  Orbigny. 
  

   Central 
  America 
  ; 
  Hanley. 
  

   Panama 
  ; 
  C. 
  B. 
  A. 
  ! 
  

   8 
  specimens 
  were 
  obtained. 
  

  

  416. 
  Area 
  g^radata. 
  

  

  Synonymy. 
  

  

  Area 
  gradata 
  Brod. 
  and 
  Sowb. 
  in 
  Zool. 
  Journ. 
  IV. 
  365. 
  1829. 
  

  

  : 
  Gray 
  in 
  Zool. 
  Beech. 
  Voy. 
  p. 
  152. 
  pi. 
  43. 
  f. 
  1. 
  1839. 
  

  

  Reeve 
  Conch. 
  Icon. 
  pi. 
  14. 
  f. 
  92. 
  Apr. 
  1844. 
  

  

  Hanley 
  Descr. 
  Catal. 
  p. 
  155. 
  1845 
  ? 
  

  

  Orb. 
  Voy. 
  Amer. 
  Merid. 
  Moll. 
  p. 
  636. 
  1846. 
  

  

  