This is the most common class of annelids in the Chesapeake Bay. Over 110 species live in the Bay, residing in almost every habitat. Polychaetes are characterized by having many hairs (setae). They often have head structures including tentacles, and feathered extensions. Polychaetes may burrow, swim, crawl, or build tubes.

the class of annelids who are mostly marine and are characterized by a head with eyes and tentacles and a body with parapodia

marine annelid worms