﻿U. 
  S. 
  NATIONAL 
  MUSEUM 
  

  

  PROCEEDINGS, 
  VOL. 
  XX 
  PL. 
  XXXIIl 
  

  

  Parasitic 
  Worms 
  {AntkoboHirium 
  ami 
  piii/nohotlirinm) 
  from 
  Sting 
  Ray, 
  (Khine- 
  

  

  bothrium) 
  FROM 
  CoW-NOSED 
  RaY 
  AND 
  SMOOTH 
  RaY, 
  AND 
  iOnjgmatobothriuin) 
  

  

  FROM 
  Tiger 
  Shark 
  and 
  Sting 
  Ray. 
  

  

  For 
  explanation 
  of 
  plate 
  see 
  pages 
  455, 
  456. 
  

  

  