PLATE LXXVI. 



Figs. 1, In. Porites romprfnna forma eiomjaia Dana. Fig. 1, general view of one of Dana's speci- 

 mens, probably his tyi)e, nat. size; fig. la, ealices, X 6 1S6 



2, 2a, 3. Poriten comprenna forma profundoniin new. Figs. 2, 2(f, of the same specimen; 



fig. 2, general view, nat. size; fig. 2a, calices, X 6. Fig. 3, a branch, nat. size 187 



374 



