﻿PLATE 
  LXVII. 
  

  

  Sergestes 
  semiarmis 
  (p. 
  423). 
  

  

  Lateral 
  view 
  ; 
  enlarged 
  eight 
  times. 
  

   Second 
  gnathopod 
  ; 
  distal 
  extremity. 
  

   Second 
  pereiopod 
  ; 
  chela. 
  

   „ 
  Im. 
  Third 
  pereiopod 
  ; 
  chela. 
  

  

  Sergestes 
  semiarmis, 
  var. 
  (p. 
  424). 
  

  

  ,, 
  2c. 
  Second 
  antenna 
  ; 
  scaphocerite. 
  

  

  „ 
  2k 
  First 
  pereiopod 
  ; 
  distal 
  extremity. 
  

  

  ,, 
  21. 
  Second 
  pereiopod 
  ; 
  chela. 
  

  

  „ 
  2n, 
  0. 
  Fourth 
  and 
  fifth 
  pereiopoda. 
  

  

  „ 
  2z. 
  Telson. 
  

  

  Sergestes 
  leeviventralis 
  (p. 
  425). 
  

  

  ,, 
  3. 
  Lateral 
  view 
  ; 
  enlarged 
  thirteen 
  times. 
  

   „ 
  3^. 
  Second 
  pereiopod 
  ; 
  chela. 
  

   „ 
  3?i, 
  0. 
  Fourth 
  and 
  fifth 
  pereiopoda. 
  

  

  Mastigopus 
  spiniventralis 
  (p. 
  379). 
  

  

  „ 
  4. 
  Lateral 
  view 
  ; 
  enlarged 
  twelve 
  times. 
  

   „ 
  4z. 
  Telson. 
  

  

  Sergestes 
  spiniventralis 
  (p. 
  426). 
  

  

  „ 
  5a. 
  Ophthalmopod 
  and 
  rostrum. 
  

   ,, 
  U. 
  Second 
  pereiopod 
  ; 
  chela. 
  

   „ 
  bv. 
  Sixth 
  pleopod 
  ; 
  outer 
  branch. 
  

  

  Sergestes 
  spiniventralis^ 
  var. 
  

  

  ,, 
  6rt. 
  Ophthalmopod; 
  &, 
  first 
  antenna 
  ; 
  c, 
  second 
  antenna. 
  

   „ 
  Qn, 
  0. 
  Fourth 
  and 
  fifth 
  pereiopoda. 
  

  

  ' 
  Habitat. 
  — 
  West 
  Pacific. 
  

  

  