Onion anemone

Paranthus rapiformis

Family Actinostolidae - anemones

Body soft, translucent; color pink to cream, reddish brown to greenish gray, has light longitudinal stripes; when closed, body is round, resembling a "cocktail onion"; body can elongate greatly sometimes looking worm-like; base sometimes flares out into a bulb-like shape; tentacles colorless to light brown, translucent.
Similar Species
The "cocktail onion" shape with the longitudinal stripes help distinguish this species.
Gulf, usually burrows in the sediment with tentacles above surface of sediment
Maximum Size
medium size anemone, can extend up to 35 cm (13 3/4 in) or more.
Other Common Names
sea onion
Previous Scientific Names