ACTINIA!)^:. 
173 
with the beautiful representatives of the northern form, — 
Actinia fabella, and A. graininea of Dana. 
ANALYSIS OF THE GENERA. 
Skin smooth. 
Possessing acontia {Not British) Nemactis. 
Destitute of acontia Actinia. 
Skin warted {Not British) Phymactis. 
