''Rhyacoglanis'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

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 ...

es (order Siluriformes) of the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Pseudopimelodidae The Pseudopimelodidae are a small family (about 40 species) of catfishes known as the bumblebee catfishes or dwarf marbled catfishes. Some of these fish are popular aquarium fish. Taxonomy This family was formerly a subfamily of Pimelodidae. Pse ...

Species

There are 9 species in the database, and the other 3 haven't been described, so they won't be included. *'' Rhyacoglanis annulatus'' *'' Rhyacoglanis beninei'' *'' Rhyacoglanis epiblepsis'' *'' Rhyacoglanis paranensis'' *'' Rhyacoglanis pulcher'' *'' Rhyacoglanis rapppydanielae'' *'' Rhyacoglanis seminiger'' *'' Rhyacoglanis varii'' Oscar Akio Shibatta and Lenice Souza-Shibatta. 2023. New species of Rhyacoglanis (Siluriformes: Pseudopimelodidae) from the upper rio Tocantins Basin. Neotrop. ichthyol. 21(1); DOI: 10.1590/1982-0224-2022-0075 *'' Rhyacoglanis variolosus''

Identification

''Rhyacoglanis'' is distinguished from other

by three synapomorphies: the presence of a light blotch on the cheek; a connection between the middle of the dark caudal-fin stripe and the dark caudal-peduncle pigmentation; and 30–35 total vertebrae.

Distribution

''Rhyacoglanis''

is widely distributed in the cis-Andean portions of

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 ...

, mainly in the

Amazon Amazon most often refers to: * Amazon River, in South America * Amazon rainforest, a rainforest covering most of the Amazon basin * Amazon (company), an American multinational technology company * Amazons, a tribe of female warriors in Greek myth ...

Orinoco The Orinoco () is one of the longest rivers in South America at . Its drainage basin, sometimes known as the Orinoquia, covers approximately 1 million km2, with 65% of it in Venezuela and 35% in Colombia. It is the List of rivers by discharge, f ...

Paraná Paraná, Paranã or Parana may refer to: Geology * Paraná Basin, a sedimentary basin in South America Places In Argentina *Paraná, Entre Ríos, a city * Paraná Department, a part of Entre Ríos Province In Brazil *Paraná (state), a state ...

Paraguay Paraguay, officially the Republic of Paraguay, is a landlocked country in South America. It is bordered by Argentina to the Argentina–Paraguay border, south and southwest, Brazil to the Brazil–Paraguay border, east and northeast, and Boli ...

, and lower rio

Tocantins Tocantins () is one of the 26 states of Brazil. It is the newest state, formed in 1988 and encompassing what had formerly been the northern two-fifths of the state of Goiás. Tocantins covers and had an estimated population of 1,496,880 in 2014 ...

basins.

References

{{Taxonbar, from=Q122362714 Catfish genera Pseudopimelodidae