﻿Spirifer 
  antarcticus 
  Morris 
  and 
  Sharpe 
  

  

  Fig. 
  i 
  Ventral 
  cardinal 
  view 
  of 
  a 
  shell 
  without 
  deltidium, 
  but 
  

   with 
  apical 
  callus 
  

  

  2 
  Similar 
  view 
  of 
  an 
  old 
  shell 
  with 
  deltidium 
  

   Locality: 
  Port 
  Louis, 
  East 
  Falkland 
  

  

  3 
  Enlargement 
  of 
  surface 
  

   Locality: 
  Jaguariahyva, 
  Brazil 
  

  

  4 
  Enlargement 
  of 
  surface 
  

   6, 
  7 
  Dorsal 
  valves 
  

  

  8 
  Exterior 
  of 
  a 
  large 
  individual 
  

  

  9 
  Internal 
  cast 
  of 
  the 
  same 
  valve 
  

   Locality: 
  Port 
  Louis, 
  East 
  Falkland 
  

  

  Spirifer 
  hawkinsi 
  Morris 
  and 
  Sharpe 
  

  

  Fig. 
  io 
  Dorsal 
  valve 
  

  

  ii 
  Dorsal 
  side 
  of 
  an 
  internal 
  cast 
  

  

  Locality: 
  Port 
  Louis, 
  East 
  Falkland 
  

  

  i8 
  4 
  

  

  