﻿

  I 
  

  

  ■ 
  

  

  PLATE 
  XV 
  — 
  (Continued). 
  

  

  Fig. 
  23 
  . 
  Lateral 
  view 
  of 
  a 
  similar 
  individual, 
  enlarged 
  to 
  two 
  diameters, 
  show- 
  

   ing 
  a 
  projecting 
  pentalobate 
  base 
  with 
  nodose 
  radial 
  and 
  interra- 
  

   dial 
  plates 
  . 
  

  

  Fig. 
  24. 
  Lateral 
  view 
  of 
  the 
  specimen 
  fig. 
  22, 
  showing 
  arm-bases 
  with 
  arm-plates 
  

   attached. 
  

  

  Fig. 
  25. 
  Basal 
  view, 
  enlarged, 
  of 
  the 
  specimen 
  fig. 
  23, 
  showing 
  the 
  nodes 
  on 
  the 
  

   first 
  radial 
  plates. 
  

  

  Fig. 
  26. 
  Lateral 
  view 
  of 
  the 
  specimen 
  fig. 
  18. 
  

  

  Fig. 
  27. 
  An 
  enlargement 
  of 
  a 
  first 
  radial 
  plate 
  of 
  specimen 
  fig. 
  22, 
  showing 
  the 
  

   character 
  of 
  the 
  surface-striae. 
  

  

  - 
  

  

  