﻿598 
  REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  [HO] 
  

  

  EXPLANATION 
  OF 
  PLATE 
  XXVII. 
  

  

  Ictalurus 
  albidus. 
  ( 
  White 
  Cat-fish.) 
  

  

  Fig. 
  167. 
  Young 
  cat-fish, 
  ten 
  days 
  old, 
  viewed 
  as 
  an 
  opaque 
  object, 
  x 
  16. 
  

   Fig. 
  168. 
  Young 
  cat-fish, 
  eleven 
  days 
  old, 
  viewed 
  as 
  an 
  opaque 
  object, 
  x 
  10 
  

  

  