﻿Plate 
  S 
  

   All 
  figures 
  not 
  otherwise 
  noted 
  natural 
  size 
  

  

  Page 
  

   CAMPTOCRLNUS 
  CRAWFORDSVILLENSIS. 
  new 
  species_ 
  30 
  

  

  Fig. 
  1. 
  Specimen 
  showing 
  full 
  size 
  and 
  proportions 
  of 
  the 
  crown, 
  with 
  

   probably 
  less 
  than 
  half 
  the 
  stem 
  preserved; 
  clusters 
  of 
  two 
  

   and 
  three 
  elongate 
  cirri 
  spring 
  from 
  each 
  nodal 
  pair 
  in 
  mar- 
  

   ginal 
  rows 
  along 
  the 
  inner 
  side 
  of 
  the 
  curve, 
  together 
  with 
  

   traces 
  of 
  much 
  smaller 
  rudimentary 
  cirri 
  rather 
  irregularly 
  

   distributed 
  around 
  the 
  periphery 
  of 
  the 
  nodals 
  at 
  the 
  convex 
  

   miter 
  side: 
  and 
  two, 
  rarely 
  three, 
  internodals 
  interposed. 
  

   la. 
  Detail 
  from 
  same 
  next 
  to 
  broken 
  end 
  of 
  stem, 
  with 
  elliptic 
  cross 
  

   section 
  at 
  right. 
  Distal 
  is 
  toward 
  the 
  left. 
  X 
  .".. 
  

   2. 
  A 
  similar 
  specimen, 
  with 
  whorl 
  of 
  dwarfed 
  cirri 
  somewhat 
  

   better 
  defined; 
  two. 
  or 
  three, 
  internodals. 
  

   la. 
  Detail 
  from 
  same 
  next 
  to 
  broken 
  end 
  of 
  stem; 
  with 
  elliptic 
  

  

  section 
  at 
  right. 
  Distal 
  toward 
  the 
  right. 
  X 
  3. 
  

   .".. 
  Original 
  of 
  Wachsmuth 
  and 
  Springer's 
  plate 
  75. 
  figure 
  1. 
  with 
  

   stem 
  preserved 
  well 
  toward 
  the 
  distal 
  end 
  where 
  it 
  loses 
  its 
  

   elliptic 
  form 
  : 
  marginal 
  cirri 
  apparently 
  limited 
  to 
  a 
  single 
  

   one 
  for 
  each 
  nodal 
  pair 
  at 
  either 
  side, 
  and 
  whorls 
  of 
  rudi- 
  

   mentary 
  cirri, 
  less 
  prominent 
  than 
  in 
  the 
  last 
  specimen, 
  

   are 
  also 
  seen; 
  internodals 
  mostly 
  three, 
  also 
  two 
  or 
  four. 
  

   .">*/. 
  Detail 
  from 
  same 
  near 
  the 
  fracture 
  at 
  bottom 
  in 
  the 
  figure, 
  with 
  

   elliptic 
  section 
  measured 
  at 
  the 
  widest 
  part 
  of 
  stem 
  to 
  the 
  

   left. 
  Distal 
  is 
  toward 
  the 
  left. 
  X 
  3. 
  

   36, 
  3c. 
  Section 
  at 
  the 
  lower 
  fracture, 
  where 
  the 
  stem 
  is 
  nearly 
  round. 
  

  

  and 
  at 
  the 
  uppermost 
  fracture 
  where 
  it 
  is 
  entirely 
  so. 
  X 
  3. 
  

   ."If/..",*. 
  Top 
  and 
  side 
  views 
  of 
  part 
  of 
  same 
  stem 
  at 
  the 
  curve 
  to 
  tin- 
  

   left 
  of 
  the 
  calyx, 
  where 
  the 
  columnals 
  have 
  become 
  trans 
  

   vcrsely 
  hollowed. 
  X 
  3. 
  

   Mississippian, 
  Keokuk 
  limestone; 
  Crawfordsville, 
  Indiana. 
  

  

  CAMPTOCRINUS 
  MULTICIRRUS. 
  new 
  species 
  :!1 
  

  

  Fig. 
  4. 
  Specimen 
  from 
  Huntsville, 
  Alabama, 
  with 
  crown 
  and 
  stem 
  com- 
  

   plete: 
  shows 
  the 
  clusters 
  of 
  two 
  and 
  three 
  marginal 
  cirri 
  to 
  

   the 
  nodal 
  pair, 
  and 
  a 
  very 
  large 
  internodal 
  interposed: 
  basal 
  

   plates 
  unequal, 
  deformed 
  by 
  pressure 
  of 
  curve. 
  A 
  minute 
  

   specimen 
  of 
  Taxocrinus 
  huntsvillae 
  lies 
  alongside, 
  x 
  .">. 
  

   4a. 
  Detail 
  from 
  stem 
  of 
  same, 
  with 
  section 
  at 
  right 
  from 
  the 
  median 
  

   portion; 
  it 
  shows 
  the 
  secondary 
  or 
  incipient 
  cirri 
  dispropor- 
  

   tionately 
  small, 
  with 
  two 
  or 
  three 
  cirrals 
  developed 
  in 
  some 
  

   places 
  and 
  in 
  others 
  only 
  single 
  rudimentary 
  ossicles 
  just 
  

   broken 
  through 
  on 
  the 
  suture 
  line, 
  without 
  any 
  axial 
  canal 
  

   to 
  innervate 
  further 
  growth. 
  Distal 
  is 
  toward 
  the 
  left. 
  

  

  100 
  

  

  