﻿118 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL. 
  MUSEUM 
  vol-. 
  <57 
  

  

  Page 
  

   PTEROTOCRINUS 
  PYRAMIDALIS 
  Lynn 
  and 
  Casseday 
  50 
  

  

  Figs. 
  21, 
  22. 
  Lateral 
  and 
  basal 
  views 
  of 
  the 
  type. 
  

   Horizon 
  and 
  locality 
  same 
  as 
  last. 
  

  

  PTEROTOCRINUS 
  CAPITALIS 
  Lynn 
  and 
  Casseday. 
  ___ 
  49 
  

  

  Fig. 
  23. 
  The 
  type, 
  with 
  extremely 
  large 
  and 
  gibbous 
  basals, 
  and 
  heavy 
  

   processes, 
  thickening 
  outward 
  to 
  large 
  blunt 
  extremities. 
  

  

  Upper 
  Chester, 
  Golconda 
  formation; 
  Crittenden 
  County. 
  

   Kentucky. 
  

  

  