Nereidids are long and slender worms of medium size found among algae, gravel and shells on hard substrates, or digging into soft substrates. They are characterised, among other features, by well-developed parapodia, and an eversible pharynx with two prominent black jaws and small sclerotised teeth on the surface of the pharynx. During reproduction, many species leave the sea-bed and swarm towards the surface.
Prikkene markerer registrerte funn av arten/artsgruppen.