﻿PLATE 
  XLVI. 
  

  

  Aristeus 
  armatus 
  (p. 
  312). 
  

  

  d. 
  Mandible 
  or 
  siagon. 
  

   ma. 
  Mctastomata. 
  

  

  e. 
  First 
  maxilla 
  or 
  first 
  siagiiopod. 
  

  

  _/; 
  Second 
  maxilla 
  or 
  second 
  siagnopod. 
  

   g. 
  Maxillipede 
  or 
  third 
  siagnopod. 
  

   br. 
  Branchial 
  plume, 
  seen 
  in 
  section. 
  

   &?■". 
  Secondary 
  branch 
  of 
  Ijranchial 
  plume. 
  

  

  Fig. 
  1. 
  Aristeus? 
  (young) 
  (p. 
  240). 
  

  

  