﻿PHOLAS. 
  Panama 
  Shells. 
  525 
  

  

  ous, 
  at 
  one 
  seventh 
  of 
  the 
  length 
  from 
  the 
  anterior 
  extremity 
  : 
  

   ligament 
  large, 
  with 
  stout 
  nympha^al 
  callosities 
  : 
  teeth 
  large 
  in 
  

   old 
  shells. 
  

  

  Length 
  5.8 
  inches 
  ; 
  height 
  1.3 
  inch 
  ; 
  breadth 
  1 
  inch. 
  

  

  Station. 
  — 
  In 
  coarse 
  sand, 
  among 
  stones, 
  near 
  low 
  water 
  

   mark. 
  

  

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

  

  65 
  specimens 
  were 
  collected 
  on 
  the 
  reef 
  It 
  is 
  an 
  edible 
  spe- 
  

   cies, 
  and 
  many 
  of 
  our 
  specimens 
  were 
  obtained 
  from 
  the 
  natives, 
  

   who 
  were 
  digging 
  them 
  for 
  food. 
  

  

  Family— 
  PHOLADID^. 
  

   512. 
  Pliola§ 
  crucig-era. 
  

  

  Synonymy. 
  

  

  Pholas 
  crucigera 
  Sowb. 
  in 
  Proc. 
  Zool. 
  Soc. 
  Lond. 
  p. 
  69. 
  July 
  1834. 
  

  

  crucigcr 
  Miill. 
  Synop. 
  Nov. 
  Test. 
  Viv. 
  p. 
  236. 
  May 
  1836. 
  

  

  Orb. 
  Voy. 
  Amer. 
  Merid. 
  Moll. 
  p. 
  499. 
  1843. 
  

  

  crucigera 
  Hanley 
  Supp. 
  Wood 
  Ind. 
  Test. 
  pi. 
  11. 
  

  

  f. 
  53. 
  ----.. 
  18452 
  

  

  Hanley 
  Descr. 
  Catal. 
  p. 
  6. 
  1845? 
  

  

  Sowb. 
  Thes. 
  Conch. 
  Index. 
  1849. 
  

  

  crucifera 
  Sowb. 
  Thes, 
  Conch, 
  p. 
  489. 
  No. 
  13. 
  pi. 
  

  

  104. 
  f. 
  24-6. 
  - 
  - 
  - 
  . 
  . 
  1849. 
  

   crucigera 
  Phil. 
  Abbild. 
  III. 
  pi. 
  II. 
  f. 
  4. 
  - 
  - 
  Nov. 
  1850. 
  

  

  Station. 
  — 
  In 
  soft 
  sandstone 
  at 
  half 
  tide 
  ; 
  in 
  soft 
  stone 
  at 
  low- 
  

   water 
  ; 
  in 
  hard 
  clay 
  at 
  the 
  depth 
  of 
  13 
  fathoms 
  ; 
  Cuming 
  ! 
  

   Sowerby. 
  

  

  Habitat. 
  — 
  I. 
  of 
  Puna, 
  Bay 
  of 
  Caraccas, 
  and 
  Gulf 
  of 
  Nicoya 
  ; 
  

   Cuming 
  ! 
  Sowerby 
  : 
  also 
  Miiller. 
  

   Central 
  America 
  ; 
  Hanley 
  : 
  also 
  Orbigny 
  : 
  also 
  

  

  Jay. 
  

   Panama; 
  C. 
  B. 
  A. 
  ! 
  

   1 
  specimen 
  was 
  found. 
  

  

  