﻿500 
  Mr. 
  J. 
  W. 
  Gregory 
  on 
  Zeuglopleurus. 
  

  

  Fig. 
  1. 
  Fi<r. 
  2. 
  

  

  Fig. 
  3. 
  

  

  Fig, 
  4. 
  

  

  Wis, 
  5. 
  

  

  Fiff. 
  6. 
  

  

  Fig. 
  7. 
  

  

  EXPLANATION 
  OF 
  THE 
  FIGURES. 
  

  

  Fig. 
  1. 
  — 
  Zeuglopleunts 
  costulatus, 
  n. 
  sp. 
  Lower 
  Chalk, 
  Glynde, 
  Sussex, 
  

  

  Actinal 
  view, 
  x 
  3 
  diams. 
  Brit. 
  Mus. 
  

   Fig. 
  2. 
  — 
  Ditto. 
  Abactinal 
  view, 
  X 
  3 
  diams. 
  

   Fig. 
  3. 
  — 
  Ditto. 
  Side 
  view, 
  x 
  3 
  diams. 
  

   Fig. 
  4. 
  — 
  Ditto. 
  Interradial 
  plates, 
  mag. 
  

   Fig. 
  5. 
  — 
  Ditto. 
  Structure 
  of 
  ambulacra. 
  

  

  Fig. 
  Q.— 
  Glyphocyphus 
  radidUis 
  (Hon.). 
  Apical 
  disk, 
  after 
  Cotteau. 
  

   Fig. 
  7. 
  — 
  Echinocy 
  pints 
  difp'cih's. 
  Apical 
  disk, 
  after 
  Wright. 
  

  

  