SUBDIVISIONS OF ACTINOID POLYPS. oe 
acter between the Montipore and the Favosites group ”—as 
shown by the texture and the horizontal partitions across the 

ALVEOPORA VERRILLIANA, D. 
cells, giving them the “tabulate” character of the ancient 
Favosites, as represented by the author in the annexed figure 




VERTICAL SECTION OF CORALLUM, AND UPPER VIEW OF CALICLES, ENLARGED, OF 
ALVEOPORA SPONGIOSA, D. 
exhibiting a section of the corallum of a Feejee species. On 
account of this tabulate structure, the genus was referred by 
the author to the Favosites family. A related species, of un- 
known locality, has been made the type of a new genus, called 
Favositipora, by Mr. W. S. Kent, on the ground of its tabu- 
late character (Ann. Mag. Nat. Hist., 1870), thus confirming, 
though overlooking, the author’s conclusions. 
