SUBDIVISIONS OF ACTINOID POLYPS. 



11 



acter between the Montiporae 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 OP CALICLES, ENLARGED, OP 

 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 bee r i 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. 



