Magnificent Sea Anemone
Heteractis magnifica with Amphiprion perideraion
The previous name for this anemone was the Ritteri Anemone, updated to Heteractis magnifica, or "Magnificent Sea Anemone". Perhaps so because it's too beautiful for the first dull name. The anemone can entirely retract it's tentacles. It's column, here in purple color, will then be exposed. On the matter of reproducing this anemone can do it both sexually and asexually—it can actually clone itself.
Anilao, The Philippines