﻿Plate 
  9 
  

  

  All 
  figures 
  natural 
  size 
  unless 
  otherwise 
  stated 
  

  

  Tase 
  

   MACROSTYLOCRINUS 
  RECUMP.ENS. 
  new 
  species— 
  35 
  

  

  Fig. 
  1. 
  Side 
  view 
  of 
  a 
  specimen 
  with 
  arms 
  curved 
  backward 
  over 
  the 
  

  

  dorsal 
  cup 
  and 
  around 
  the 
  stem: 
  pinnules 
  directed 
  outward. 
  

  

  1!. 
  The 
  tegmen 
  of 
  a 
  large 
  specimen 
  in 
  similar 
  condition, 
  showing 
  

  

  general 
  outline, 
  origin 
  of 
  arms, 
  and 
  projecting 
  anal 
  plates 
  

  

  between 
  the 
  posterior 
  rays. 
  

  

  3. 
  Lateral 
  view 
  of 
  specimen 
  with 
  the 
  arms 
  partly 
  removed; 
  show- 
  

  

  ing 
  relation 
  of 
  calyx, 
  arms, 
  stem 
  and 
  cirri, 
  the 
  plates 
  of 
  two 
  

   radii, 
  and 
  the 
  first 
  iP>r 
  between 
  them. 
  

  

  4. 
  Posterior 
  view 
  of 
  a 
  similar 
  specimen, 
  showing 
  calyx 
  from 
  the 
  

  

  anal 
  side, 
  with 
  the 
  anal 
  series 
  complete 
  up 
  to 
  the 
  tegmen. 
  

   Lower 
  Devonian, 
  Oriskany 
  ; 
  Cumberland, 
  Maryland. 
  

  

  PLATYCRINUS 
  PENDENS, 
  new 
  species__ 
  — 
  38 
  

  

  Fig. 
  5. 
  Dorsal 
  view, 
  showing 
  calyx 
  as 
  enveloped 
  by 
  the 
  closely 
  recum- 
  

   bent 
  anus; 
  nnnh 
  distorted 
  by 
  pressure. 
  

   5a. 
  Ventral 
  view 
  of 
  same; 
  showing 
  food 
  grooves, 
  and 
  pinnules 
  

   directed 
  to 
  the 
  exterior. 
  

  

  Mississippian, 
  Kinderhook 
  ; 
  Le 
  Grand, 
  Iowa. 
  

  

  BARRANDEOCRINUS 
  SCEPTRUM 
  Angelin 
  3.". 
  

  

  Fig. 
  6. 
  A 
  complete 
  specimen 
  showing 
  the 
  relative 
  position 
  of 
  the 
  recum- 
  

   bent 
  arms 
  and 
  stem, 
  and 
  the 
  depressions 
  caused 
  by 
  the 
  contact 
  

   of 
  arms 
  with 
  the 
  surface 
  of 
  the 
  calyx. 
  For 
  comparison 
  with 
  

   preceding 
  species. 
  From 
  a 
  drawing 
  by 
  (i. 
  LiljevaH 
  made 
  for 
  

   Wachsmuth 
  and 
  Springer. 
  Riks 
  Museum, 
  Stockholm. 
  

   7. 
  A 
  specimen 
  in 
  the 
  author's 
  collection, 
  in 
  which 
  the 
  calyx 
  is 
  com- 
  

   pletely 
  enveloped 
  by 
  the 
  recumbent 
  arms. 
  

  

  Silurian. 
  Wenlock 
  limestone; 
  Gotland, 
  Sweden. 
  

  

  ACROCRINUS 
  AMPHORA 
  Wachsmuth 
  and 
  Springer 
  .__ 
  40, 
  44, 
  4fi 
  

  

  Figs. 
  8, 
  9. 
  Specimens 
  showing 
  the 
  tegmen, 
  composition 
  of 
  the 
  calyx, 
  

   position 
  of 
  the 
  arm 
  bases, 
  and 
  the 
  marks 
  of 
  pressure 
  by 
  arms 
  

   upon 
  the 
  older 
  surface. 
  

  

  Lower 
  Chester, 
  Ohara 
  formation; 
  Huntsville, 
  Alabama. 
  

  

  A 
  coiled 
  stem: 
  not 
  MYELODACTYLUS 
  If) 
  

  

  I'm. 
  10. 
  A 
  normal 
  stem 
  of 
  unknown 
  species, 
  spirally 
  ceiled 
  around 
  a 
  

   fragmenl 
  of 
  another 
  stem. 
  For 
  comparison 
  with 
  Qgures 
  on 
  

   preceding 
  plates. 
  

  

  Niagaran, 
  Waldron 
  shale; 
  Newsom, 
  Tennessee. 
  

  

  112 
  

  

  