- Kingdom: Animalia
- Phylum: Echinodermata
- Subphylum: Echinozoa
- Class: Holothuroidea
- Order: Aspidochirotida
- Family: Stichopodidae
- Scientific name: Parastichopus tremulus
- Norwegian: rødpølse
This sea cumber has some small tentacles around the mouth. They are used to pick up organic material from the bottom. It can reach a length of 50 cm. The color is red, purple, orange or sometimes almost white on the top, with paler shades on the underside. They usually have distinct warts on the body, but these may be almost invisible in some cases.
P. tremulus can be found just below the tidal zone, but is probably more frequent deeper than 20 meters. It seems to thrive on virtually any substrate.
It is abundant in large parts of the North-East Atlantic Ocean. It is common along the entire coast of Norway and are registered from Iceland, the Hebrides and Faroes to the Canaries. It is also known from northern parts of the Pacific Ocean.