Scientific name: Thunnus thynnus.
Spindle-shaped body, more bellied in adults, with small tail pedal and laterally keeled. The skin is covered with smooth and inconspicuous scales, small in the back of the body and larger and thicker in the front. The eye in relation to the body is small. Its meat is appreciated in oil. It can exceed 3 meters and weighs 450 kg. Present in all Italian seas.