159 
GENUS II. ANTHEA (Johnston). 
Actinia (Ellis). 
Anemonia (Risso). 
Eniacmcea (Ehrenb.). 
Base slightly adherent ; broader than the column : 
its outline irregularly undulate. 
Column forming a low thick pillar; the summit 
expanding ; the margin notched, and bearing budding 
tentacles, with no distinct parapet, or fosse. Surface 
cancellated by the intersection of longitudinal furrows, 
and transverse wrinkles. No suckers, warts, nor 
loop-holes. Substance pulpy. 
Dish membranous, very expansile, undulate at the 
margin. 
Tentacles numerous in several rows, sub-marginal, 
very long, lax, irregularly flexuous ; scarcely retractile. 
Mouth elevated on a low cylindrical wart. 
Acontia wanting. 
The genus contains but one British species. A, cereus. 
