﻿PLATE 
  XXXVI. 
  

  

  Camarocrinus 
  Safeordi. 
  

  

  Page 
  208. 
  

  

  Fig. 
  1. 
  Basal 
  view 
  of 
  a 
  well-preserved 
  specimen, 
  showing 
  the 
  form 
  and 
  lobation 
  

   of 
  the 
  body, 
  the 
  projecting 
  imperfect 
  margin 
  around 
  the 
  basal 
  area, 
  

   and 
  the 
  structure 
  of 
  the 
  base. 
  In 
  this 
  specimen 
  there 
  are 
  five 
  large 
  

   and 
  distinct 
  ambulacra, 
  opening 
  into 
  the 
  interior 
  cavities, 
  and 
  the 
  

   bases 
  of 
  two 
  small 
  accessory 
  columns 
  on 
  opposite 
  sides 
  of 
  the 
  cen- 
  

   tral 
  one. 
  

  

  Fig. 
  2. 
  Lateral 
  view 
  of 
  a 
  specimen, 
  consisting 
  of 
  five 
  equal 
  lobes; 
  The 
  exter- 
  

   nal 
  layer 
  of 
  the 
  walls 
  has 
  been 
  removed 
  from 
  the 
  upper 
  portion, 
  

   showing 
  the 
  plates 
  of 
  the 
  internal 
  walls. 
  

  

  Fig. 
  3. 
  Summit 
  view 
  of 
  an 
  example, 
  showing 
  its 
  laterally 
  compressed 
  form, 
  owing 
  

   to 
  the 
  great 
  development 
  of 
  two 
  of 
  the 
  internal 
  chambers 
  and 
  the 
  

   corresponding 
  lobes, 
  and 
  a 
  partial 
  or 
  complete 
  atrophy 
  of 
  the 
  

   others 
  . 
  

  

  Fig. 
  4. 
  Lateral 
  View 
  of 
  a 
  specimen 
  of 
  subspherical 
  form, 
  without 
  any 
  well- 
  

   defined 
  lobation 
  of 
  the 
  dome. 
  The 
  plates 
  have 
  been 
  removed 
  in 
  

   the 
  process 
  of 
  weathering, 
  giving 
  to 
  the 
  surface 
  much 
  the 
  appear- 
  

   ance 
  of 
  a 
  Favosite. 
  

  

  Fig. 
  5. 
  The 
  basal 
  area 
  of 
  an 
  example 
  enlarged 
  two 
  diameters, 
  showing 
  in 
  detail 
  

   the 
  structure 
  of 
  this 
  portion 
  of 
  the 
  botiy 
  . 
  

  

  Fig. 
  6. 
  An 
  enlargement 
  to 
  four 
  diameters 
  of 
  a 
  portion 
  of 
  the 
  surface 
  of 
  the 
  

   exterior 
  walls 
  of 
  a 
  specimen, 
  showing 
  the 
  irregular 
  polygonal 
  plates, 
  

   and 
  the 
  impressed 
  sinuous 
  or 
  cerenulate 
  sutures. 
  

  

  Camarocrikus 
  Clarkii. 
  

  

  Page 
  209. 
  

  

  Fig. 
  7. 
  Summit 
  view 
  of 
  a 
  specimen, 
  showing 
  the 
  irregular 
  form 
  and 
  unequal 
  

   lobation 
  of 
  the 
  body. 
  

  

  Fig. 
  8. 
  Id. 
  Basal 
  view, 
  showing 
  the 
  form, 
  size, 
  and 
  position 
  of 
  the 
  basal 
  area, 
  

   which 
  is 
  imperfectly 
  preserved, 
  but 
  clearly 
  indicates 
  the 
  numer- 
  

   ous 
  ambulacra, 
  opening 
  into 
  the 
  internal 
  cavities. 
  

  

  The 
  specimens 
  illustrated 
  on 
  this 
  plate 
  are 
  from 
  the 
  Lower 
  Helderberg 
  lime- 
  

   stone, 
  Hardin 
  county, 
  Tenn. 
  

  

  