Niobichthys ferrarisi is the only species of the monotypic genus Niobichthys of loricariid catfish. N. ferrarisi is classified in the tribe Hypoptopomatini within the subfamily Hypoptopomatinae. This fish reaches a length of 7.0 centimetres (2.8 in) SL. This species is endemic to Venezuela and occurs in the upper Baria River and the Rio Negro basin.
Harttia is a genus of armored catfishes native to South America.
Neoplecostomus is a genus of fish in the family Loricariidae native to South America. Neoplecostomus can be distinguished from all other loricariids by a modified shield of small plates on the abdomen with posteriorly directed odontodes; the shield appears to act as a holdfast. The color pattern is generally mottled brown with the abdomen white. The head is long, rounded, and shovel-shaped. The fin spines are weak. They range from about 8 to 11 cm (3.1–4.3 in) SL. The species of Neoplecostomus live in fast-flowing water.
Oxyropsis wrightiana is a species of armored catfish (Loricariidae) native to Brazil, Colombia and Peru where it occurs in the Amazon basin. This species grows to a length of 5.6 centimetres (2.2 in) SL.
Corumbataia britskii is a species of armored catfish endemic to Brazil where it is found in small tributaries of the Sucuriú River, upper Paraná River Basin in the state of Mato Grosso do Sul. This species was found in deforested areas in moderate to fast current streams. It associates with aquatic macrophytes or the submerged portion of marginal vegetation. In its gut contents were found filamentous blue-green algae, chlorophytes, diatoms and bark. This species grows to a length of 2.7 centimetres (1.1 in) SL.
Harttia garavelloi is a species of armored catfish endemic to Brazil where it is found in the Fanado and Araçuaí rivers. This species grows to a length of 8.6 centimetres (3.4 in) SL.
Harttia kronei is a species of armored catfish of the family endemic to Brazil where it is found in the Ribeira de Iguape River basin. This species grows to a length of 12 centimetres (4.7 in) SL.
Kronichthys heylandi is a species of armored catfish endemic to Brazil where it occurs in coastal streams between Santos and Rio de Janeiro. This species grows to a length of 15 centimetres (5.9 in) TL.
Neoplecostomus selenae is a species of armored catfish endemic to Brazil. This species grows to a length of 10.17 centimetres (4.00 in) SL.
Pareiorhina rudolphi is a species of armored catfish endemic to Brazil where it occurs in the Paraíba do Sul River near Lorena, São Paulo State, Brazil. This species grows to a length of 4.5 centimetres (1.8 in) TL.
Otocinclus arnoldi is a species of armoured catfish native to South America, where it occurs in the lower río Paraná drainage, in the lower and middle rio Uruguai and in the río de La Plata. This species reaches a maximum length of 4.8 centimetres (1.9 in) (SL).
Otocinclus batmani is a species of armored catfish (Loricariidae) native to South America. It can grow up to 37 millimetres (1.5 in) (SL).
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.
Microplecostomus forestii, is a species of fish in the family Loricariidae found in two tributaries of the Tocantizinho River in the Tocantins basin. This species is the only member of its genus.
Corumbataia liliai is a species of armored catfish endemic to Brazil, where it is found in the Upper Rio Paraná basin, Goiás, Brazil. This species grows to a length of 3 centimetres (1.2 in) SL.
Corumbataia lucianoi is a species of armored catfish endemic to Brazil, where it is found in the Upper Rio Paraná basin, Goiás, Brazil. This species grows to a length of 3 centimetres (1.2 in) SL.
Scott Allen Schaefer is an American ichthyologist working at the American Museum of Natural History as the Dean of Science for Collections, Exhibitions, and the Public Understanding of Science; he serves as the Curator-in-Charge, in the Department of Ichthyology, within the Division of Vertebrate Zoology.
Hypoptopoma machadoi is a species of catfish of the family Loricariidae.
Parotocinclus eppleyi is a fish in the family Loricariidae native to South America. It is found swimming in the upper and middle portions of the Rio Orinoco. This species reaches a length of 3 cm (1.2 in).
Corydoras isbrueckeri is a tropical freshwater fish belonging to the Corydoradinae sub-family of the family Callichthyidae. It originates in inland waters in South America. Corydoras isbrueckeri is found in Bolivia.
