Clam worm with many wiggly legs in shallow water at the beach. The worm is dark colored.

Saw a bunch of cool wiggly clam worms in the shallow waters around City Island yesterday. Seagulls were feasting on them. Wikipedia says early spring is mating season and they develop the ability to swim. Fun to see, but they look like a Klingon delicacy. #invertebrate #clamworm