catfish

Catfish are an order of teleost fish, the Siluriformes. There are about 40 families in the order. They are called catfish because their barbels look like the whiskers of a cat. They are very diverse. The heaviest is the Mekong giant catfish, up to 350 kg (770 lb). The longest is the wels catfish, up to 4 m (13 ft).