﻿U. 
  S. 
  NATIONAL 
  MUSEUM 
  

  

  PROCEEDINGS, 
  VOL. 
  XX 
  PL. 
  XXVII 
  

  

  

  ■« 
  ■• 
  

  

  

  '^ 
  £■ 
  

  

  

  Parasitic 
  Worms 
  (Taenia) 
  from 
  Great 
  Lake 
  Trout 
  and 
  Rock 
  Bass, 
  and 
  (Moncbothrimn} 
  

  

  FROM 
  Sucker. 
  

  

  For 
  explanation 
  of 
  plate 
  see 
  page 
  453. 
  

  

  