﻿PaJ'e 
  289 
  

  

  UNIVALVES 
  

  

  Plate 
  XV 
  

  

  vtnmo 
  Lith 
  Bu 
  lN. 
  Rosnnthai 
  f 
  h 
  

  

  JACKSON 
  lERTI&RY 
  SHELLS 
  

  

  