Urticina piscivora, urticina meaning “nettle” in Latin and piscivora meaning “fish-eating,” is often referred to as the fish-eating anemone. It utilizes its tentacles to capture small fish and shrimp. The fish-eating anemone is not a predator to all fish. In fact, the anemone is host to one fish in particular, the painted greenling, which will seek protection by lying in the anemone.
Image credit: Kip Evans