﻿U. 
  S. 
  NATIONAL 
  MUSEUM 
  

  

  PROCEEDINGS, 
  VOL- 
  XX 
  PL. 
  XXX 
  

  

  M'Pr 
  ^-f^f^^ 
  

  

  

  Parasitic 
  Worms 
  iDibothrinm) 
  from 
  Paddlefish, 
  Cod, 
  Ling, 
  Great 
  Lake 
  Trout, 
  

  

  AND 
  Tarpum. 
  

  

  For 
  explanation 
  of 
  plate 
  see 
  page 
  454. 
  

  

  