Feather duster worms, a type of annelid worm, and more specifically, tube- dwelling polychaete worms

Feather duster worms, a type of annelid worm, and more specifically, tube- dwelling polychaete worms. The “arms” are actually tentacles or “radioles” at the anterior end of the worm. Most of the worms’ bodies are hidden within the tubes they have constructed.

Photo Category: Sea Life - Invertebrates - Seafloor
Photo Location: Pacific Ocean, offshore Hawaii.