Polychaetes are segmented worms, generally less than 10 cm (4 in) in length, although ranging at the extremes from 1 mm (0.04 in) to 3 m (10 ft), in Eunice aphroditois. They can sometimes be …

The story of polychaetes is a profound one, inextricably linked to the dawn of complex life. These annelids – segmented worms – represent a lineage stretching back nearly 540 million years, to …

Most polychaetes live in the ocean, where they either float, burrow, wander on the bottom, or live in tubes they construct; their colours range from brilliant to dull, and some species can …

Aug 5, 2025 · Their name, “Polychaeta,” originates from Greek, meaning “many bristles,” referring to the chitinous bristles, or setae, that project from fleshy, paired appendages called …

Polychaetes include such forms as sand worms, tube worms, and clam worms. Most have well developed, paired, paddle-like appendages (parapodia), well developed sense organs, and …

2 days ago · Polychaetes have soft bodies usually at most only a few centimetres long and pencil-thick, and they move relatively slowly, aided on each segment by the retractable grip of four …

Errant polychaetes (L. errare, to wander), include free-moving pelagic forms, active burrowers, crawlers, and tube worms that leave their tubes for feeding or breeding.

The name "Polychaeta" is Latin for "many setae". This diverse group of worms ranges in size from less than a millimeter to more than 2 meters in length. Their diversity in body form and lifestyle …

Polychaeta (/ ˌpɒlɪˈkiːtə /) is a paraphyletic class of generally marine annelid worms, [1] commonly called bristle worms or polychaetes (/ ˈpɒlɪˌkiːts /). Each body segment has a pair of fleshy …

The largest class of annelids is the Polychaeta (Gr. polys, many, chaite¯, long hair) with more than 10,000 species, most of them marine. Although most polychaetes are 5 to 10 cm long, …