. "Torpedinidae"@en . . . . . . . "The family Torpedinidae contains 22 species of electric rays or torpedoes, flat cartilaginous fishes that produce electricity as a defense and feeding mechanism. They are slow-moving bottom-dwellers.The largest species is the Atlantic torpedo, Tetronarce nobiliana, which can grow to a weight of 90 kilograms and deliver a 220-volt electric shock. Electric rays have patches of modified muscle cells called electroplaques that make up an electric organ."@en .