﻿PLATE 
  C. 
  

  

  AJphcus 
  intrmsecus 
  (p. 
  557). 
  

   Fig. 
  1. 
  Lateral 
  view 
  ; 
  female, 
  enlarged 
  three 
  times. 
  

   „ 
  Ic. 
  Cephalon, 
  frontal 
  region. 
  

  

  „ 
  Ic". 
  Ceplialou 
  ; 
  h, 
  first 
  antenna 
  ; 
  c, 
  second 
  antenna. 
  

   „ 
  lli. 
  First 
  pereiopod 
  ; 
  smaller 
  chela. 
  

   „ 
  \q. 
  Second 
  pleopod, 
  with 
  ova 
  attached. 
  

   „ 
  Iz. 
  Telson. 
  

  

  Alpheus 
  minus 
  (p. 
  558). 
  

   ,, 
  2. 
  Lateral 
  view 
  ; 
  enlarged 
  four 
  times. 
  

   ,, 
  2Jc. 
  First 
  pereiopod 
  ; 
  larger 
  chela. 
  

   ,, 
  2k". 
  First 
  pereiopod 
  ; 
  pollex 
  and 
  dactylos. 
  

  

  Alpheus 
  spiniger 
  (p. 
  560). 
  

  

  ,, 
  3. 
  Lateral 
  view 
  ; 
  enlarged 
  three 
  times. 
  

  

  „ 
  3c. 
  Cephalon, 
  with 
  first 
  and 
  second 
  antennae. 
  

  

  ,, 
  3^'. 
  First 
  pereiopod 
  ; 
  larger 
  chela. 
  

  

  ,, 
  3Z/. 
  First 
  pereiopod 
  ; 
  smaller 
  chela, 
  left. 
  

  

  „ 
  3A/'. 
  First 
  pereiopod, 
  showing 
  form 
  of 
  dactylos. 
  

  

  ,, 
  3m. 
  Third 
  pereiopod 
  ; 
  dactylos. 
  

  

  „ 
  3z. 
  Telson. 
  

  

  