- Kingdom: Animalia
- Phylum: Annelida
- Class: Polychaeta
- Subclass: Errantia
- Order: Phyllodocida
- Family: Tomopteridae
- Scientific name: Tomopteris helgolandica
- Norwegian: -
This worm has a short and broad, translucent body of up to 34 segments, in addition to a tail. The body length can reach 4 cm, including the tail. The tail may be missing in young specimens. It has two long, orange antennas.
It is pelagic and is usually found near the coast.
It can be found in the North Atlantic Ocean and in the Mediterranean.