- Bomolochidae [familie]
- Chondracanthidae [familie]
- Clausidiidae [familie]
- Corycaeidae [familie]
- Ergasilidae [familie]
- Lichomolgidae [familie]
- Macrochironidae [familie]
- Myicolidae [familie]
- Mytilicolidae [familie]
- Pseudanthessiidae [familie]
- Rhynchomolgidae [familie]
- Sabelliphilidae [familie]
- Splanchnotrophidae [familie]
- Taeniacanthidae [familie]