- Kingdom: Animalia
- Phylum: Annelida
- Class: Polychaeta
- Subclass: Sedentaria
- Order: Terebellida
- Family: Flabelligeridae
- Scientific name: Pherusa plumosa
- Norwegian: -
The color of this bristle worm is grey or brown. Old specimens may have as many as 70 segments and grow to a total length of 6 cm. On the three front segments there are a number of thick hairs pointing forward.
It can be found on any depth from the subtidal zone and down to 1400 meters. Is usually shallowly buried in sand or under rocks.
This is a well known species from the North Sea and Baltic Sea, but it may exist across the entire northern hemisphere.