﻿488 
  Panama 
  Shells. 
  CARDIID^. 
  

  

  We 
  procured 
  147 
  specimens, 
  many 
  of 
  wlaicli 
  were 
  obtained 
  

   from 
  the 
  natives. 
  The 
  animal 
  is 
  used 
  by 
  them 
  for 
  food. 
  

  

  426. 
  Area 
  . 
  Sp. 
  indet. 
  a. 
  

  

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

  

  2 
  specimens 
  were 
  found. 
  They 
  are 
  too 
  young 
  for 
  descrip- 
  

   tion. 
  The 
  species 
  is 
  remarkable 
  for 
  the 
  prominence 
  and 
  sharp- 
  

   ness 
  of 
  one 
  of 
  its 
  two 
  umbonial 
  angles. 
  

  

  Family— 
  CAEDIID^. 
  

   427. 
  Cardita 
  affiiiis. 
  

  

  Synonymy. 
  

  

  Cardita 
  a 
  finis 
  Sowb. 
  in 
  Proc. 
  Zool. 
  Soc. 
  Lond. 
  p. 
  195. 
  Dec. 
  1832. 
  

  

  Mull. 
  Syn. 
  Test. 
  Viv. 
  p. 
  211. 
  May 
  1836. 
  

  

  Reeve 
  Conch. 
  Icon. 
  pi. 
  1. 
  f. 
  6. 
  June 
  1843. 
  

  

  Hanley 
  Descr. 
  Catal. 
  p. 
  149. 
  1845? 
  

  

  modulosa 
  (.?) 
  Val. 
  Voy. 
  Venus 
  Moll. 
  pi. 
  22. 
  f. 
  2. 
  1846. 
  

  

  "Valenciennes 
  quotes 
  Lamarck 
  for 
  the 
  name 
  which 
  he 
  gives 
  to 
  

   this 
  species, 
  which 
  must 
  therefore 
  be 
  an 
  error 
  for 
  nodulosa. 
  

   But 
  the 
  Lamarckian 
  shell 
  probably 
  belongs 
  to 
  a 
  different 
  species, 
  

   for 
  it 
  is 
  said 
  to 
  be 
  Australian. 
  The 
  name 
  nodulosa 
  is 
  yet 
  

   farther 
  involved 
  in 
  errors, 
  by 
  its 
  reappearance 
  in 
  Eeeve's 
  

   Iconica 
  for 
  a 
  very 
  different 
  species. 
  

  

  Station. 
  — 
  Sandy 
  mud, 
  at 
  a 
  depth 
  of 
  from 
  6 
  to 
  12 
  fathoms 
  ; 
  

   Cuming 
  ! 
  Sowerby. 
  

  

  Our 
  specimens 
  were 
  found 
  in 
  stones 
  and 
  rocks 
  at 
  and 
  below 
  

   half 
  tide 
  level. 
  It 
  is 
  a 
  boring 
  species. 
  

  

  Habitat. 
  — 
  Bay 
  of 
  Montija 
  and 
  Gulf 
  of 
  Nicoya; 
  Cuming! 
  

   Sowerby 
  : 
  also 
  Miiller. 
  

   Central 
  America 
  ; 
  Hanley. 
  

   Mazatlan 
  ; 
  Melchers 
  ! 
  Menke. 
  

   West 
  Columbia 
  ; 
  Jay. 
  

  

  