﻿PLATE 
  XXI. 
  

  

  Phoherus 
  tenuimanus, 
  nat. 
  size 
  (p. 
  171). 
  

   {Aeanthacaris 
  tenuimana 
  on 
  Plate.) 
  

  

  a,a. 
  Ophthalmopoda. 
  

  

  c. 
  Cephalon 
  ; 
  h, 
  fir.«t 
  antenna, 
  left 
  side 
  ; 
  c, 
  second 
  antenna, 
  right 
  side. 
  

  

  c. 
  Peduncle 
  of 
  second 
  antenna, 
  seen 
  on 
  the 
  lower 
  side. 
  

  

  k. 
  Chela 
  of 
  first 
  pereiopod, 
  left 
  side. 
  

  

  kf. 
  Mastigobranchial 
  leaf 
  of 
  same 
  with 
  podobranchial 
  plume 
  attached. 
  

  

  //'. 
  Section 
  of 
  branchial 
  plume. 
  

  

  0. 
  Chela 
  of 
  posterior 
  pereiopod. 
  

  

  p. 
  First 
  pleopod. 
  

  

  q. 
  Second 
  pleopod. 
  

  

  v,z,v. 
  Rhipidura 
  ; 
  z, 
  telson 
  ; 
  vv, 
  posterior 
  pair 
  of 
  pleopoda. 
  

  

  