﻿U. 
  S. 
  NATIONAL 
  MUSEUM 
  

  

  PROCEEDINGS, 
  VOL. 
  67, 
  ART. 
  5 
  PL. 
  I 
  

  

  •4-* 
  

  

  rdjM* 
  

  

  • 
  -f 
  

  

  m 
  P 
  

  

  The 
  Crinoid 
  genus 
  Pentacrinus 
  in 
  Alaska 
  

  

  For 
  explanation 
  of 
  plate 
  see 
  page 
  7 
  

  

  