EXPLANATION OF PLATES. 



PLATE 12. PAGE 



DIPHYPHYLLUM ADJUNCTUM, N. Sp. 27 



FIG. 1. — Ventral view of a portion of a large co- 

 rallum. 



PTYCHOPHYLLUM GEMMATUM, N. Sp. 28 



FIG. 2. — Posterior view showing the lateral b\ids 



and a portion of the calix. 

 FIG. 3. — View of the calix of another specimen. 



PTYCHOPHYLLUM BENEDICTI, N. Sp. 28 



FIG. 4, — Ventral view of a composite example. 

 FIG. 5. — Calix view of another simple individual. 

 FIG. 6. — Oblique lateral view, showing a portion 

 of the calix of another specimen. 



CYSTIPHYLLUM PARASITICUM, N. Sp. 31 



FIG. 7. — View of the calix of a large specimen at- 

 attached to a Heliophyllum at the lower 

 portion of a Favosite, also attached to the 

 Heliophyllum. 



F X G . 8. — A large number attached to the epithica 

 of Favosites Hemisphericus (Yandell & Shu- 

 mard.) 



FIG. 9. — A large example attached to a worn and 

 weathered Heliophyllum. 



CYSTIPHYLLUM INFUNDIBULIFORMIS, N. Sp. 31 



FIGS. 10-11. — Posterior view, showing the invagi- 



nated calyces. 

 FIG. 12. — Lateral view of another example. 



