Plaice, a flatfish related to the halibut and flounder. It is an important food fish in Europe. The plaice is found in shallow water along the continental shelf in the Norwegian Sea and North Sea. Its eyes are located on one side of the head and it swims with this side facing up. The upper side of the body is brown with white spots; the lower side is uniformly white. The plaice feeds on mollusks and crustaceans, using its blunt teeth to crush the shells. It grows to 3 feet (90 cm) long and weighs up to 15 pounds (7 kg).
The plaice is Pleuronectes platessa of the family Pleuronectidae.