Contains
- polychaete
Chiefly marine annelids possessing both sexes and having paired appendages (parapodia)...
- leech
Carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each...
- oligochaete
Hermaphroditic terrestrial and aquatic annelids having bristles borne singly along the...
- archiannelid
Small primitive marine worm lacking external segmentation and resembling polychaete...