Porbeagle,

Porbeagle, sometimes called 'Beaumaris Shark' (Lamna cornubica), is a shark found on the British coasts, in the Atlantic, Mediterranean, on the American coast, and in Japanese waters. Its usual length is 4 feet, but it sometimes attains a length of 10 feet, and is sometimes caught in mackerel and salmon nets, and even on haddock lines. It lives on cuttle-fish, pilchards, herrings, hake, and smaller cartilaginous fishes. In Mediterranean countries it is eaten as human food.