Classification
Polychaeta [klas]Sedentaria [onderklas]
Scolecida [infraklas]
Infraklas Scolecida contains the following taxa:
Arenicolidae [familie]
Capitellidae [familie]
Cossuridae [familie]
Maldanidae [familie]
Opheliidae [familie]
Orbiniidae [familie]
Paraonidae [familie]
Scalibregmatidae [familie]