dwarf otocinclus

Otocinclus vittatus is a species of freshwater ray-finned fish belonging to the family Loricariidae, the suckermouth armored catfishes, and the subfamily Hypoptopomatinae, the cascudinhos. This catfish is found in South America, where it is known from the basins of the Amazon, Orinoco, Paraná-Paraguay, and Tocantins rivers. It has been recorded from Argentina, Brazil, Colombia, Peru, Bolivia, Venezuela, and Paraguay. This species reaches a total length of 3.3 cm (1.3 in). The species is found in the aquarium trade, where it is usually known as either the common otocinclus or the dwarf otocinclus, both of which are names that are used for other related species.