﻿Smithsonian 
  Report, 
  1943. 
  — 
  Friedmann 
  

  

  PLATE 
  16 
  

  

  1. 
  Walking-stick 
  insects 
  on 
  twigs. 
  (Photograph 
  by 
  H. 
  S. 
  Barber.) 
  

  

  2. 
  Sargassum 
  fish 
  (Pterophryne 
  histrio) 
  in 
  Sargassum 
  weed. 
  

   Fine 
  Examples 
  of 
  Concealment 
  by 
  Body 
  Form. 
  

  

  