''Exallodontus aguanai'' is a

catfish Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, ...

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

(

order Order, ORDER or Orders may refer to: * Categorization, the process in which ideas and objects are recognized, differentiated, and understood * Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ...

Siluriformes) of the

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

''Exallodontus'' of the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Pimelodidae The Pimelodidae, commonly known as the long-whiskered catfishes, are a family of catfishes ( order Siluriformes). Taxonomy The family Pimelodidae has undergone much revision. Currently, it contains about 30 genera and about 90 recognized and kno ...

. This genus and species was described in 1991. This species reaches SL. This species is native to the

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

and Orinoco River basins of

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...

and

Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...

. ''Exallodontus'' is classified under the "'' Calophysus- Pimelodus'' clade". Within this clade, it is considered a part of the "Pimelodus-group" of Pimelodids, which also includes ''Pimelodus'', ''

Duopalatinus ''Duopalatinus'' is a small genus of long-whiskered catfishes native to South America. Species There are currently two recognized species in this genus: * '' Duopalatinus emarginatus'' (Valenciennes, 1840) * '' Duopalatinus peruanus'' Eigenmann ...

'', '' Cheirocerus'', ''

Iheringichthys ''Iheringichthys'' is a small genus of long-whiskered catfish native to South America. Species There are currently three recognized species in this genus:Azpelicueta, M.d.l.M. & Britski, H.A. (2012)Iheringichthys syi ''(Siluriformes: Pimelodidae ...

'', '' Bergiaria'', '' Bagropsis'' ''

Parapimelodus ''Parapimelodus'' is a small genus of long-whiskered catfishes native to South America. Species There are currently two recognized species in this genus: * '' Parapimelodus nigribarbis'' ( Boulenger, 1889) * '' Parapimelodus valenciennis'' ( Lü ...

'', ''

Platysilurus ''Platysilurus'' is a genus of long-whiskered catfishes native to South America. Taxonomy ''Platysilurus'' is classified under the "'' Calophysus-Pimelodus'' clade". Within this clade, it is considered a part of the "Pimelodus-group" of Pimelo ...

'', ''

Platystomatichthys ''Platystomatichthys sturio'' is the only species in the genus ''Platystomatichthys'' of the catfish ( order Siluriformes) family Pimelodidae. It is sometimes called the sturgeon catfish. This species occurs in the Amazon Basin and reaches a len ...

'', and ''

Propimelodus ''Propimelodus'' is a genus of South American catfish of the family Pimelodidae. Taxonomy The type species of this genus, ''P. eigenmanni'', was first described in 1946 under the genus ''Pimelodus''. In 2002, the genus ''Propimelodus'' was descr ...

''.

References

Pimelodidae Catfish of South America Freshwater fish of Brazil Freshwater fish of Colombia Fish of Peru Fish of Venezuela Fish of the Amazon basin Fish described in 1991 Taxa named by Francisco Mago Leccia {{Pimelodidae-stub