﻿PLATE 
  XXVII. 
  

  

  Astacopsis 
  paramattensis 
  (p. 
  202). 
  

  

  Fig. 
  1. 
  Dorso-lateral 
  view, 
  natural 
  size. 
  

  

  ,, 
  le. 
  First 
  siagnopod 
  ; 
  1, 
  2, 
  3, 
  4, 
  homologues 
  of 
  the 
  four 
  respective 
  joints 
  of 
  the 
  

   typical 
  limb 
  — 
  coxa, 
  basis, 
  ischium, 
  and 
  meros 
  ; 
  spines 
  and 
  hairs 
  enlarged. 
  

  

  ,, 
  1/ 
  Second 
  siagnopod, 
  figures 
  as 
  before. 
  

  

  ,, 
  l^. 
  Third 
  siagnopod, 
  figures 
  as 
  before 
  ; 
  ec, 
  basecphysis. 
  

  

  ,, 
  \h. 
  First 
  gnathopod, 
  figures 
  as 
  above 
  ; 
  5 
  carpos, 
  6 
  propodos, 
  7 
  dactylos 
  ; 
  ph, 
  

   podobranchial 
  plume 
  ; 
  arh, 
  arthrobranchial 
  plume 
  ; 
  ec, 
  ecphysis. 
  

  

  „ 
  li. 
  Second 
  gnathopod, 
  figures 
  as 
  before 
  ; 
  ph, 
  podobranchia 
  ; 
  arh, 
  arthro- 
  

   branchia. 
  

  

  „ 
  Im", 
  Podobranchia 
  of 
  third 
  2>ereiopod 
  attached 
  to 
  the 
  mastigobranchial 
  plate. 
  

  

  ;, 
  Im"'. 
  Section 
  of 
  the 
  mastigobranchial 
  plate 
  and 
  podobranchia 
  of 
  third 
  pereiopod, 
  

   with 
  hairs 
  from 
  the 
  surface 
  of 
  the 
  former 
  ; 
  magnified. 
  

  

  Astacopsis 
  sydneyensis 
  (p. 
  204). 
  

   ,, 
  2. 
  Dorsal 
  view 
  of 
  the 
  specimen 
  ; 
  enlai'ged 
  twice. 
  

  

  