Gråsteinbit = Anarhichas lupus

Atlantic Wolffish (Anarhichas lupus) is the largest species of the wolffish group.

What sets it apart from other wolffish species are its teeth. Both jaws are equipped with strong, cone-shaped incisors, two rows of large, bumpy molars on the sides, and two rows of similar molars in the middle of the palate. The wolffish uses these teeth to crush the hard carapaces and shells of crustaceans and mollusks that it feeds on. It likes to hide among rocks, and there are often shell remains from its prey scattered around.

Divers who encounter it underwater report that it is fairly harmless when meeting humans. However, fishermen who pull it up into the boat should be cautious as it becomes quite aggressive and bites onto whatever it finds.

Gråsteinbit Wikipedia