''Pseudancistrus kayabi'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

catfish Catfish (or catfishes; order (biology), order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Catfish are common name, named for their prominent barbel (anatomy), barbels, which resemble a cat's whiskers, though not ...

in the family

Loricariidae Loricariidae is the largest family (biology), family of catfish (order Siluriformes), with over 90 genus, genera and just over 680 species. Loricariids originate from freshwater habitats of Costa Rica, Panama, and tropical and subtropical South A ...

. It is native to

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...

, where it occurs in the

Teles Pires River The Teles Pires () is a long river in Brazil. The river flows through the state of Mato Grosso and its lower part marks the border between the states of Mato Grosso and Pará. At its mouth it joins Juruena River and together they form the Tapajó ...

, which is part of the

Tapajós The Tapajós ( ) is a river in Brazil. It runs through the Amazon Rainforest and is a major tributary of the Amazon River. When combined with the Juruena River, the Tapajós is approximately long. Prior to a drastic increase in illegal gold mi ...

basin in the state of

Mato Grosso Mato Grosso ( – ) is one of the states of Brazil, the List of Brazilian states by area, third largest by area, located in the Central-West Region, Brazil, Central-West region. The state has 1.66% of the Brazilian population and is responsible ...

Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...

. The species reaches 8.8 cm (3.5 inches) SL.

Etymology

Its specific epithet, ''kayabi'', refers to the

Kayabí The Kayabí or Kaiabi are an Indigenous people of Brazil, indigenous people of Brazil inhabiting the northern state of Mato Grosso. They primarily live in the Xingu Indigenous Park and the Indian Reservation of Apiaká-Kayabi south of Pará. T ...

people who historically inhabited the region surrounding the Teles Pires,

Arinos Arinos is a municipality in northern Minas Gerais state in Brazil. Arinos is located east of the Federal District on the Urucuia River, a major tributary of the São Francisco. The city is 333 km from Brasília. The municipality belongs to ...

, and Dos Peixes river basins in Mato Grosso. It was described in 2015 by Gabriel S. C. Silva, Fábio F. Roxo, and Claudio Oliveira alongside the related species '' Pseudancistrus asurini'' from the

Xingu River The Xingu River ( ; ; ) is a river in north Brazil. It is a southeast tributary of the Amazon River and one of the largest clearwater rivers in the Amazon basin, accounting for about 5% of its water. __TOC__ Description and history The fir ...

basin.Silva, G. S., Roxo, F. F., & Oliveira, C. (2015). Two new species of Pseudancistrus (Siluriformes, Loricariidae) from the Amazon basin, northern Brazil. ''ZooKeys'', (482), 21–34.

References

Pseudancistrus Suckermouth catfish of Brazil Endemic fish of Brazil Taxa named by Gabriel de Souza da Costa e Silva Taxa named by Fabio F. Roxo Taxa named by Claudio Oliveira (scientist) Fish described in 2015 {{Hypostominae-stub