﻿EXPLANATION 
  OF 
  THE 
  PLATES. 
  663 
  

  

  Plate 
  XXII. 
  

  

  JFig. 
  A. 
  PilumuKS 
  pulcher, 
  adult 
  S 
  , 
  nat. 
  size, 
  a, 
  larger 
  chela, 
  

   X 
  1|. 
  

  

  B. 
  Pilumniis 
  semilanatus, 
  adult 
  cS 
  , 
  X 
  2. 
  h, 
  larger 
  chela, 
  

  

  X 
  1|. 
  

  

  C. 
  Pilumnus 
  lahyrintMcus, 
  X 
  3. 
  c, 
  outer 
  view 
  of 
  chela, 
  X 
  3. 
  

  

  Plate 
  XXIII. 
  

  

  Fig. 
  A. 
  Inferior 
  view 
  of 
  the 
  frontal, 
  antennal, 
  and 
  part 
  of 
  the 
  buccal 
  

   legions 
  oi 
  Cryptocoeloma 
  ^mbriatum, 
  $ 
  , 
  x 
  8. 
  

  

  B. 
  Achelous 
  granulatus, 
  var. 
  unispinosus, 
  adult 
  c? 
  ? 
  X 
  1|. 
  

  

  b, 
  inferior 
  view 
  of 
  the 
  antenna 
  and 
  part 
  of 
  the 
  orbit 
  of 
  

   the 
  same 
  specimen, 
  x 
  4. 
  

  

  C. 
  Goniosoma 
  spiniferum, 
  c? 
  , 
  X 
  2. 
  c, 
  inferior 
  view 
  of 
  the 
  

  

  antenna 
  and 
  part 
  of 
  the 
  orbit, 
  x 
  4. 
  

  

  Plate 
  XXIV. 
  

   Fig. 
  A. 
  Camptoplax 
  coppinrieri, 
  x 
  4. 
  a, 
  the 
  frontal 
  and 
  antennal 
  

   regions, 
  epistome, 
  and 
  palate, 
  viewed 
  from 
  below, 
  magni- 
  

   fied. 
  

  

  B. 
  Pseuclorhomblla 
  vestita, 
  var. 
  sexdentata, 
  c? 
  , 
  x 
  3, 
  b, 
  frontal 
  

  

  and 
  orbital 
  regions 
  ; 
  6', 
  outer 
  view 
  of 
  chela, 
  x 
  3, 
  

  

  C. 
  Pseudorhombila 
  sulcatifrons, 
  var. 
  australiensis, 
  2 
  ■> 
  X 
  3. 
  

  

  c, 
  frontal 
  and 
  orbital 
  region 
  ; 
  c', 
  outer 
  view 
  of 
  chela, 
  

   X 
  3. 
  

  

  Plate 
  XXV. 
  

  

  Fig. 
  A. 
  MacroplUlialmus 
  jpunctulatus, 
  cJ 
  , 
  X 
  4. 
  «, 
  outer 
  view 
  of 
  

   chela, 
  X 
  4. 
  

  

  B. 
  Ceratoplax 
  1 
  arcuate, 
  x 
  3. 
  6, 
  orbital 
  region, 
  showing 
  the 
  

  

  structure 
  of 
  the 
  antenna; 
  and 
  their 
  position 
  in 
  the 
  orbits, 
  

   &c. 
  ; 
  b' 
  , 
  postabdomen 
  of 
  the 
  male, 
  x 
  4 
  ; 
  b" 
  , 
  outer 
  view 
  of 
  

   chela, 
  X 
  4. 
  

  

  C. 
  Cerato])lax? 
  Icevis, 
  x 
  4. 
  c, 
  orbital 
  region, 
  showing 
  the 
  form 
  - 
  

  

  of 
  tho 
  eye-peduncles 
  and 
  position 
  of 
  the 
  antennae 
  ; 
  c, 
  outer 
  

   view 
  of 
  chela, 
  x 
  4. 
  

  

  