- Kingdom: Animalia
- Phylum: Mollusca
- Class: Cephalopoda
- Infraclass: Decapodiformes
- Order: Sepiolida
- Family: Sepiolidae
- Scientific name: Rossia glaucopis
- Norwegian: -
The mantle, less than 8 cm in length, does not constitute more than one third of the total body length. It has a fine pattern of small pigmented spots. The color is often dark red when the pigment is activated. Above, you can se two pictures taken with only a few seconds interval. When I first encountered it, it was white. Intimidated by the huge diver, it tried to hide by changing its color to red. Remember red is excellent camouflage on a location with no natural red light. In the light from a flash, it is a different story.
It prefers sandy or muddy substrate where it hides, partially buried, waiting for its prey. According to the literature it is most frequent below 50 meters, but my observations are from approximately 15-30 meters in the Trondheim Fjord.
It is widespread in the North Atlantic Ocean.