﻿U. 
  S. 
  NATIONAL 
  MUSEUM 
  

  

  PROCEEDINGS, 
  VOL. 
  XX 
  PL. 
  XL 
  

  

  PARASITIC 
  WORMS. 
  

  

  NlTZSCHIA 
  FROM 
  STURGEON 
  AND 
  CoD 
  ; 
  TRISTOMUM 
  FROM 
  OCEANIC 
  BONITO, 
  SWORDFISH, 
  

   A\D 
  SUNFISH 
  (MoUd: 
  OCTOPLECTANUM 
  FROM 
  FLOUNDER. 
  

  

  For 
  explanation 
  of 
  plate 
  see 
  page 
  542. 
  

  

  