These anemones live in the sandy bottom of the lower harbor. They have particularly long tentacles for capturing food and another set of tentacles, in the middle, that may help move food to their mouths. They are one of the largest animals who live in the harbor substrate. They differ from most anemones because they’ve built a tube around their base which they can retreat into, if threatened. When their long tentacles don’t retract in time, and get eaten, it’s not a problem because these anemones can just regrow them.