- Kingdom: Animalia
- Phylum: Annelida
- Class: Polychaeta
- Subclass: Errantia
- Order: Phyllodocida
- Family: Hesionidae
- Scientific name: Oxydromus flexuosus
- Norwegian: -
This free-living bristle worm has characteristic blue-green stripes on brown background, across the short and broad body. It is divided in approximately 50-60 segments, and may reach a length of 7 cm.
It prefers fine sand at depths from 5 to 500 meters. It does not mind if there is little oxygen in the water.
It is distributed across most of the North-East Atlantic Ocean and the Mediterranean.