PLATE XIV. 



FaVOSITES (MiCHELINA 'f) EXPLANATA. 1). Sp. 



Fig. 1. A part of a circular depressed hemispheric mass, the upper side having the cell-apertures, 



with few exceptions, subequal and crenulate on the margins. 

 Fig. 2. The lower side of the same specimen where the cell-apertures are very unequal. 

 Fig. 3. An enlargement of a section from the lower right side of fig. 2, showing the origin and 



mode of growth of the cells, the diaphragms, and a few pores on one cell- wall; all 



the characters being more like Michelina than like Favosites. 

 Fig. 4. An enlargement of the cell-apertures from the specimen figure 1. 



Alveolites Goldfussi. 



Alveolites Ooldfussi Billings. Canad. Jouru., New Series, Vol. V, p. 255. ISCO.j 



Figs. 5, 6. The upper surface of two individuals, showing some difference in the proportion and 



character of the cell-apertures. 

 Fig. 7. An enlargement of the surface from the speaimen figure 6. 

 Figs. 8, 9. A farther enlargement of the cell-apertures from the specimens figures 5 and 6. 



