BlimSH FOSSILS. 



Fig. 7. rortion of the under surface magnified, showing the triplication of tlie per 



near the mouth. 

 Fig. 8. Form of the mouth, magnified. 

 Fig. 9. Form of the vent. 

 Fig. 10. Plates of the apical disk, magnified. 



B. Pifrina ovulum, Ag, 



Fig. 1 1 . Upper view. 

 Fig. 12. Under view. 

 Fig. 13. Side view. 

 Fig. 14. Posterior end. 



Fig. 15. Tubercles and granules from the upper side, magnified. 

 Fig. 16. Do. do. from the base. 



Fig. 17. Apical disk, magnified. 



S. P. Woodward. 



March 1S56. 



