﻿PLATE 
  XVIIl. 
  

  

  WtUemossia 
  leptodactyla 
  ; 
  enlarged 
  one 
  and 
  9 
  half 
  times 
  (p. 
  163). 
  

  

  V. 
  Pleon 
  : 
  lateral 
  view. 
  

  

  (I. 
  Siagon 
  or 
  mandible 
  ; 
  lioui 
  the 
  inside. 
  

  

  ('. 
  First 
  siagnopod 
  or 
  tirst 
  maxilla. 
  

  

  f. 
  Second 
  siagnopod 
  or 
  second 
  maxilla. 
  

  

  <j. 
  Third 
  siagnopod 
  or 
  maxilliped. 
  

  

  /;. 
  First 
  gnathopod. 
  

  

  /. 
  Second 
  gnathopod. 
  

  

  /. 
  Coxa 
  and 
  basis 
  of 
  first 
  pereiopod, 
  showing 
  mastigobranchial 
  lash 
  and 
  podobranchial 
  

  

  plume. 
  

   /■". 
  Chela 
  of 
  firist 
  pereiopod. 
  

   k'". 
  Podobranchia 
  ; 
  enlarged. 
  

   k"". 
  Series 
  of 
  small 
  plates 
  on 
  the 
  inner 
  margins 
  of 
  pollex 
  and 
  dactylos. 
  

  

  