EXPLANATION OF PLATES. 



PLATE 59. PAGE 



HELIOPHYLLUM INFLEXUM, N. Sp. 200 



FIG. 1 — Posterior view exhibiting the lamellffi and the broad fossette. 

 FIGS. 2, 3, 4— Calix view of three different examples. 



HELIOPHYLLUM OBLIQUUM, N. Sp. 200 



FIG. 5 — Lateral view of the specimen. 



FIG. 6 — View of the calix of another example. 



FIG. 7 — View of the calix and posterior side of the coral 



ZAPHRENTIS CALICULUS, N. Sp. 201 



FIG. 8 - Lateral view of a large example, with a portion of the cup 

 broken away to exhibit the fossette, and the elevated lamellae in 

 the center of the calix. 



FIQ. 9 — Lateral view of two specimeas joined by their epithecal 



walls. 



FIG. 10 — View of the calix of another example. 



FIG. 11 — Posterior view of another individual, with a portion of the 

 cap broken away to exhibit the fossette, and the elevated space 

 in the center of the calix. 



CYSTIPHYLLUM CRENATUM, N. Sp. 203 



FIGS . 12, 13, 14 — Calix views of three different examples. 



FIGS. 15, 16 — Ventral views, and exhibiting the specimens attached 

 by their epithecal walls. 



FIG. 17 — Lateral view of a large individual witti the epitheca worn 

 away. 



FIG. 18, 19, 20— Calix views of three different specimens showing the 

 crenulated margins. 



