bo 
te) 
the other cycles unite, with beautiful regularity, in such a way as to form 
series of deltas in each of the six principal chambers. Those of the first three 
cycles are in the form of large upstanding leaves, and though their surfaces 
are regularly wrinkled like cockle-shells, their free edges are entire. 
Synapticula in ten to twelve zones, which though forming fairly regularly 
concentric series, do not at once arrest the eye by this character. 
Columella distinct. Corallum brilliant white: soft parts mauve. 
Bay of Bengal, off the Kistna Delta, 678 fathoms, and off Trincomalee, 
800-636 fms. 
The form and structure of the septa in this species is much like that of 
the Stephanophyllia imperialis figured by Michelin (Icon. Zoophytol. pl. viii. 
fig. la), 
Calcutta :— Baptist Mission Press, 1898. 
