SUBDIVISIONS OF ACTINOID POLYPS. 69 
mose zodphytes, is closely related in its polyps, according to 
Prof. Verrill, to the Astrangiw, and belongs to that family 
Its cylindrical stems are gathered into crowded clumps. The 
C. arbuscula is figured on page 54. 
SAIN 
« 
AWS 

PHYLLANGIA AMERICANA, E. & H. 
A West India species of another genus of the group, the 
Phyllangia Americana, is represented in the annexed figure. 
In the following cut, figure 1 represents the extremity of a 
branch of an Oculina, the O. varicosa, of the family Oculinide. 

CORALS OF THE OCULINA TRIBE. 
The species of this genus grow in clumps of round branches, 
and have very solid coralla, so white and firm when bleached 
