Sorubim lima

Sorubim lima, known as the duckbill catfish, is a freshwater catfish of the family Pimelodidae, the long-whiskered catfishes, in the order Siluriformes. It lives in tropical rivers of South America, in the Amazon, Orinoco, Paraná and Parnaíba basins, in water of roughly 23 to 30 degrees Celsius. Males can reach about 54 centimetres in total length and about 1.5 kilograms. The body has no scales and is covered with bony plaques, with an irregular grey line running from the head to the tail fin. The head is long and flat, the mouth is round with the upper jaw longer than the lower, and the eyes sit on the sides of the head. The back is dark brown toward the front, becoming yellowish and then whitish below the lateral line, and the fins are reddish to pink. Adults occur in schools and are mainly active at night, feeding chiefly on fishes and crustaceans. It is taken in minor fisheries and appears in the aquarium trade, and the IUCN lists it as Least Concern.