Sabellida is an order of annelid worms in the class Polychaeta.

They are filter feeders with no buccal organ.

The prostomium is fused with the peristomium and bears a ring of feathery feeding tentacles.

They live in parchment-like tubes made of particles from their environment such as sand and shell fragments cemented together with mucus.

[2] Members of the suborder include the feather duster worms (Sabellidae) and serpulid worms (Serpulidae).