﻿158 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  edges; 
  two 
  or 
  three 
  thin 
  joints 
  between 
  thick 
  ones; 
  articulating 
  sur- 
  

   faces 
  of 
  joints 
  deeply 
  striated 
  radially 
  from 
  margin 
  nearly 
  to 
  the 
  

   canal; 
  canal 
  pentapetalous 
  ; 
  calyx 
  subcylindric 
  or 
  ovoid, 
  gradually 
  

   enlarging 
  from 
  base 
  upward 
  to 
  commencement 
  of 
  arms, 
  then 
  dimin- 
  

   ishing; 
  summit 
  contracted; 
  surface 
  of 
  plates 
  generally 
  smooth. 
  

  

  Fig. 
  53 
  Eucalyptocrinus 
  decorus 
  

  

  Found 
  in 
  the 
  lenses 
  of 
  Hmestone 
  in 
  the 
  upper 
  Clinton 
  and 
  in 
  the 
  

   calcareous 
  beds 
  of 
  the 
  lower 
  Rochester 
  shale, 
  as 
  well 
  as 
  the 
  Bryo- 
  

   zoan 
  bed 
  at 
  Niagara. 
  Often 
  plentiful 
  but 
  generally 
  in 
  dissociated 
  

   plates, 
  of 
  which 
  the 
  interbrachial 
  partition 
  plates 
  are 
  most 
  readily 
  

   recognized. 
  The 
  " 
  roots 
  " 
  are 
  occasionally 
  found 
  attached 
  to 
  corals,. 
  

   etc. 
  Also 
  represented 
  in 
  the 
  middle 
  and 
  upper 
  limestones 
  at 
  Ni- 
  

   agara, 
  but 
  generally 
  replaced. 
  Also 
  in 
  the 
  shale 
  at 
  Lockport 
  and 
  

   other 
  localities 
  (Hall). 
  

  

  