﻿PLATE 
  LXIV. 
  

  

  Sergestes 
  — 
  Development. 
  

  

  Acanthosoma 
  brevitelsonis 
  (p. 
  367). 
  

   Fig. 
  1. 
  Dorsal 
  view 
  ; 
  enlarged 
  thirty-five 
  times. 
  

  

  Acanthosoma 
  tynitelsonis 
  (p. 
  369). 
  

   „ 
  2. 
  Latero-dorsal 
  view 
  ; 
  enlarged 
  twenty 
  times. 
  

  

  Acanthosoma 
  longitelsonis 
  (p. 
  371). 
  

   „ 
  3. 
  Latero-dorsal 
  view 
  ; 
  enlarged 
  forty 
  times. 
  

  

  