i A ' ■ . ftfi 
hi Hi sp • nov. 
PI. ,fig. 
Cora Hum composed of a group of a few large corallites, 
some of which have prominent calices* The type specimen has a 
narrow base, is 50 mm* tall, i3 composed of six corallites, one 
of which is young; greatest diameter, 52 mm.; lesser, 40 mm. 
The calices are somewhat constricted, the corallites have greater 
diameters below them, the diameter of the corallites varying 
from 16 to 19 mm.; of the calices about 11 mm., some may be 
compressed, one has a greater diameter of 11, and a lesser of 7 
mm. Epitheea extends high up, to near the calices. Externally 
the corallites are costate, the costae in three sizes, none are 
especially prominent, but the largest are quite thick, the other 
smaller according to cycle. They are crowded and have granulated 
edges • 
A smaller specimen with a fl&ttish base has a height of 
20 mm.; length, 40 mm* ; width, about 30 mm. ; it is composed of 
