Hypostomus is a genus of catfish in the family Loricariidae. They are native to tropical and subtropical South America. H. plecostomus is the popular freshwater aquarium fish formerly known as Plecostomus plecostomus. There is a lot of confusion as to the precise taxonomic structure of the Loricariidae.
The Hypoptopomatinae are a subfamily of catfishes of the family Loricariidae, composed of 17 genera and approximately 80 species. This subfamily represents about one-tenth of all loricariid species.
Hypoptopoma is a genus of armored catfishes native to South America.
Nannoptopoma is a small genus of catfishes of the family Loricariidae. This genus includes two species, N. spectabile and N. sternoptychum.
Neoplecostominae is a subfamily of South American catfishes of the family Loricariidae. Species of this subfamily live in high-mountain and swift-flowing river habitats.
Parotocinclus is a genus of fish in the family Loricariidae native to South America. This genus is distributed through almost all hydrographic systems in South America from the Guyana Shield drainages and Amazon Shield tributaries to the coastal drainages of eastern and southeastern Brazil, including the rio São Francisco basin. Most species have the caudal peduncle oval in cross section. It has been found that Characidium species may interact with P. maculicauda. The small Characidium will follow grazing P. maculicauda, which release particulate matter dislodged from the catfish's foraging.
Pseudacanthicus is a genus of medium to large-sized suckermouth armored catfishes native to South America, where found in the Amazon and Orinoco basins, as well as rivers of the Guianas. They are primarily found in fast-flowing waters, sometimes relatively deep. They are sometimes kept in aquariums.
Gymnotocinclus anosteos is a species of armored catfish (Loricariidae) endemic to Brazil, where it is found in the Tocantinzinho River in the Tocantins River basin. This species grows to a length of 4.4 centimetres (1.7 in) SL.
Gymnotocinclus is a genus of small freshwater catfish in the family Loricariidae, native to the Tocantins River basin in Brazil.
Hypoptopoma sternoptychum is a species of catfish of the family Loricariidae.
Corumbataia veadeiros is a species of armored catfish endemic to Brazil, where it is found in tributaries of the Rio das Almas and the Ribeirão dos Bois, both of which are tributaries of the Rio Paranã, in the headwaters of the Rio Tocantins basin, Goiás, central Brazil. This species grows to a length of 3.68 centimetres (1.45 in) SL.
Rhinolekos is a genus of armored catfishes native to South America. This genus is only known from the Tocantizinho River and Paranaiba River drainage in Goiás, Brazil.
Nannoplecostomus eleonorae is a species of armored catfish known only from the upper Rio Tocantins basin in the Brazilian state of Goiás. This species grows to a length of 2.22 centimetres (0.87 in) SL. This species is the only known member of its genus and the smallest loricariid catfish known.
Peckoltia multispinis is a small freshwater fish in the genus Peckoltia of the catfish family Loricariidae. It has the L-number L049. It is possibly a junior synonym for Peckoltia vittata. However, the online Encyclopedia of Life lists this fish as Lasiancistrus multispinis. The California Academy of Sciences describes Peckoltia multispinis as the currently correct name.
Panaque armbrusteri is a recently described species from the South American armoured catfish family Loricariidae. They are distributed throughout the Tapajós river, a large tributary of the Amazon River, with similar populations found in the Xingu, Araguaia, Tocantins and Aripuanã rivers; although it is uncertain whether these populations comprise the same or different species. It is a fairly popular aquarium fish amongst other pleco species, and is one of the species commonly referred to as a royal pleco.
Hypoptopoma baileyi is a species of catfish of the family Loricariidae.
Hypoptopoma bianale is a species of catfish of the family Loricariidae.
Hypoptopoma elongatum is a species of catfish of the family Loricariidae.
Hypoptopoma incognitum is a species of catfish of the family Loricariidae.
Hypoptopoma machadoi is a species of catfish of the family Loricariidae.
