G. PALYTHOA. 255 



STELLATE. 



1. Palythoa stellata. Cells polypiferous, with a 

 star-formed opening. — Plate 15. fig. 2. 



Coast of Jamaica. 



OCELLATED. 



2. Palythoa osculata. Papillae wrinkled ; openings 

 of the cells radiated and star-formed. 



Coast of St. Domingo. 



