﻿61 
  

  

  days 
  previously. 
  It 
  was 
  probably 
  not 
  attached 
  longer 
  

   than 
  from 
  seven 
  to 
  ten 
  days 
  and 
  is 
  already 
  as 
  large 
  as 
  a 
  

   young 
  European 
  oyster 
  figured 
  by 
  Mobius 
  as 
  being 
  a 
  

   month 
  old. 
  I 
  have 
  sketched 
  it 
  both 
  natural 
  size 
  and 
  

   enlarged 
  about 
  three 
  times 
  to 
  show 
  the 
  tiny 
  larval 
  shell 
  

   as 
  a 
  sort 
  of 
  rounded 
  point 
  at 
  the 
  apex 
  of 
  the 
  ui)per 
  valve. 
  

   Fig. 
  9 
  shows 
  a 
  young 
  oyster 
  supposed 
  to 
  be 
  

   not 
  over 
  twenty 
  days 
  old, 
  and 
  the 
  one 
  repre- 
  

   sented 
  in 
  Fig. 
  10 
  is 
  known 
  not 
  to 
  be 
  over 
  44 
  days 
  

   Fig. 
  9. 
  old, 
  Pig. 
  11 
  is 
  not 
  over 
  48, 
  Fig. 
  12, 
  79, 
  and 
  Fig. 
  

   13, 
  82 
  days 
  old. 
  Fig. 
  14 
  represents 
  a 
  very 
  fine 
  specimen 
  

  

  Figure 
  M). 
  Figure 
  11. 
  Figure 
  Vl. 
  

  

  taken 
  from 
  the 
  inside 
  of 
  a 
  wreck 
  at 
  Cape 
  May, 
  N. 
  J., 
  by 
  

   my 
  friend 
  Mr. 
  John 
  Ford, 
  and 
  is 
  supposed 
  to 
  be 
  not 
  over 
  

  

  Figure 
  13. 
  Figure 
  14. 
  

  

  2i 
  to 
  3 
  months 
  old 
  from 
  the 
  fact 
  that 
  it 
  was 
  collected 
  in 
  

  

  