valtionpään
Valtionpään (*Pleurotomaria arctica*) is a species of sea snail, a marine gastropod mollusk in the family Pleurotomariidae. It is commonly known as the Arctic topshell or northern topshell, and is native to the cold waters of the North Atlantic Ocean, particularly around the Arctic and subarctic regions. This species is often found attached to rocks, seaweed, or other hard substrates in shallow to moderate depths, typically between 10 and 100 meters.
The shell of *Pleurotomaria arctica* is distinctive, characterized by its smooth, glossy surface and conical shape.
Valtionpään plays a role in its ecosystem as both predator and prey. It feeds primarily on algae
This species is not widely studied compared to more commercially or ecologically significant mollusks, but it