''Baryancistrus xanthellus'' 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), ...

of armored catfish

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

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 ...

. It is a

benthic The benthic zone is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers. The name comes from the Ancient Greek word (), meaning "the depths". ...

fresh water fish that lives in the

Volta Grande Volta Grande is a Brazilian municipality in the state of Minas Gerais. As of 2020 its population was estimated to be 5,261. Geography Volta Grande is located in the Zona da Mata mesoregion of Minas Gerais near the border with the state of Rio de ...

and

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 ...

, as well as the area immediately above Belo Monte falls and the

Iriri River The Iriri River ( ; ) is a large tributary of the Xingu River in Brazil, in the state of Pará. It is long making it the 116th longest river in the world (with Krishna River, India) and the 15th longest in the Amazon basin. The headwaters are th ...

. It reaches a length of SL. It appears in the aquarium trade, where it is typically referred to either by its associated

L-number The L-number system is a semi-scientific classification system of catfish based on photographs of shipments of tropical catfish of the family Loricariidae published by the German aquarium magazine DATZ (Die Aquarien- und Terrarienzeitschrift (The ...

s, which are L018, L081, L085, L177, LDA60, LDA116 or LDA117; or as the gold nugget pleco.

References

Ancistrini Suckermouth catfish of Brazil Endemic fish of Brazil Fish described in 2011 {{Hypostominae-stub