﻿602 
  REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  [114] 
  

  

  EXPLANATION 
  OF 
  PLATE 
  XXIX. 
  

  

  ICTALUKUS 
  ALBIDUS. 
  (White 
  Cat-fish.) 
  

  

  Fig. 
  171. 
  Young 
  cat-fish, 
  eighty-eight 
  days 
  old, 
  viewed 
  as 
  au 
  opaque 
  object, 
  x 
  8. 
  

   Fig. 
  172. 
  The 
  same, 
  viewed 
  from 
  above, 
  x 
  8. 
  

  

  