﻿PLATE 
  LXXI. 
  

  

  Sergestes 
  prehensilis 
  (\). 
  385). 
  

   Fig. 
  1. 
  Lateral 
  view 
  ; 
  enlarged 
  twice. 
  

  

  a. 
  Ophthalmopod 
  

  

  b. 
  First 
  antenna. 
  

  

  d. 
  Mandible 
  or 
  siagon. 
  

  

  e. 
  First 
  siagnopod. 
  

  

  f. 
  Second 
  siagnopod. 
  

  

  g. 
  Third 
  siagnopod. 
  

  

  k 
  First 
  pereiopod 
  ; 
  showing 
  the 
  prehensile 
  character 
  of 
  the 
  ultimate 
  articulation. 
  

  

  P. 
  Pereion 
  detached, 
  with 
  gnathopoda 
  h, 
  i, 
  and 
  pereiopoda 
  k, 
  I, 
  in, 
  n, 
  o, 
  connected, 
  the 
  

   larger 
  branchial 
  plumes 
  removed 
  to 
  show 
  the 
  position 
  of 
  their 
  attachment 
  to 
  

   the 
  somite 
  and 
  the 
  rudimentary 
  form 
  of 
  the 
  pleurobranchia. 
  

  

  