Plate V. 



Page 



Fig. 1 f. Paralldopora favositiformis nov. gen. & p 13 



Fig. 1, tangential section, X 16. 



Fig. 2, X 24. 



Fig. 3, longitudinal section, showing mural pores, X 16. 



Fig. 4, with one of the narrow subcylindrical 



tubes, X 16. 

 Fig. ~>. with another, X 24. 



