Ageneiosus ucayalensisW
Ageneiosus ucayalensis

Ageneiosus ucayalensis is a species of driftwood catfish of the family Auchenipteridae. It can be found in South America.

Astroblepus cyclopusW
Astroblepus cyclopus

Astroblepus cyclopus is a species of catfish of the family Astroblepidae. It can be found on Ecuador and Colombia.

Caquetaia myersiW
Caquetaia myersi

Caquetaia myersi is a species of fish, a large predatory cichlid, which is endemic to the basin of the Amazon River, specifically the Putumayo and Napo rivers of Ecuador and Colombia. The specific name honours the American ichthyologist George S. Myers (1905-1985) of Stanford University, who first noticed that this was a different species of fish but did not formally describe it. The fish is a protrusible-mouthed predator. The juveniles are omnivorous but the large adults are carnivorous.

Emerald catfishW
Emerald catfish

The emerald catfish is a tropical freshwater fish belonging to the Corydoradinae sub-family of the family Callichthyidae native to the Amazon Basin in South America. It has traditionally been known as Brochis splendens. The fish has appeared on a stamp in Brazil.

Gilded catfishW
Gilded catfish

The gilded catfish or jau is a South American catfish of the family Pimelodidae. Also known as manguruyu or black manguruyu.

Hog-nosed catfishW
Hog-nosed catfish

The hog-nosed catfish is a tropical freshwater fish belonging to the Corydoradinae sub-family of the family Callichthyidae. It is native to South America, and is found in the western Amazon basin in Ecuador and Peru. This species is traditionally placed in Brochis but the genus is a synonym of Corydoras. FishBase continues to recognize Brochis as a valid genus.

Porthole shovelnose catfishW
Porthole shovelnose catfish

The porthole shovelnose catfish or spotted shovelnose catfish, Hemisorubim platyrhynchos, is the only species in the genus Hemisorubim of the catfish family Pimelodidae.

Redtail catfishW
Redtail catfish

The redtail catfish, Phractocephalus hemioliopterus, is a pimelodid (long-whiskered) catfish. In Venezuela it is known as cajaro and in Brazil it is known as pirarara, stemming from the Tupi language words pirá and arara. It is the only extant species of the genus Phractocephalus. This fish is common in the aquarium trade, although its massive adult size makes it unsuitable for all but the largest aquariums.

Firewood catfishW
Firewood catfish

The firewood catfish a species of South American pimelodid catfish, is the sole member of the genus Sorubimichthys. Known by locals along the Amazon Basin as peixe-lenha, the firewood catfish is so called because it is of little eating value and is often dried and used for firewood.

Glass bloodfin tetraW
Glass bloodfin tetra

The glass bloodfin tetra, Prionobrama filigera, is a species of Characid fish native to the Amazon River basin of South America.

Green terrorW
Green terror

The green terror is a colorful freshwater fish in the cichlid family. The fish originates from the Pacific side of South America from the Tumbes River in Peru to the Esmeraldas River in Ecuador. It is polymorphic and can have white or gold-orange edging to the tail and dorsal fins. It has historically been confused with two other species that always have narrow, clearly defined white edging, the more southerly distributed A. stalsbergi and the more northerly A. blombergi.

Helogenes marmoratusW
Helogenes marmoratus

Helogenes marmoratus is a species of whale catfish occurs in Brazil, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela. It is found in the Atlantic drainages of the Guianas, the upper Orinoco and Rio Negro systems, and the upper Amazon River basin. This species grows to a length of 7.3 cm.

Isorineloricaria spinosissimaW
Isorineloricaria spinosissima

Isorineloricaria spinosissima, also known as the zucchini catfish, is a species of Loricariidae endemic to the Guayas River basin in western Ecuador. This species grows to a length of 56.5 centimetres (22.2 in) TL.

Lasiancistrus schomburgkiiW
Lasiancistrus schomburgkii

Lasiancistrus schomburgkii is a species of armored catfish native to Brazil, Colombia, Ecuador, Guyana and Peru. This species grows to a length of 14.4 centimetres (5.7 in) SL.

Long-tailed river stingrayW
Long-tailed river stingray

The long-tailed river stingray or antenna ray is a species of freshwater stingray in the family Potamotrygonidae. It is found in the Amazon basin in South America, ranging from Ecuador to Belém. It lives in the main channel of the Amazon River and lower parts of its major tributaries.

Megalechis pictaW
Megalechis picta

Megalechis picta, the Tail bar armored catfish, Tail bar hoplo or Spotted Hoplo, is a species of catfish of the family Callichthyidae. M. picta occurs east of the Andes in the Amazon, Orinoco, and upper Essequibo River basins, and coastal rivers of northern Brazil.

Megalechis thoracataW
Megalechis thoracata

Megalechis thoracata is a species of catfish of the family Callichthyidae. M. thoracata is found east of the Andes in the Amazon, Orinoco, and upper Paraguay River basins, as well as in the coastal rivers of the Guianas and northern Brazil. Recent introductions were recorded in the upper Paraná River drainage.

Megalodoras uranoscopusW
Megalodoras uranoscopus

The giant talking catfish or giant raphael catfish is a species of thorny catfish that is native to the Amazon Basin in Bolivia, Brazil, Colombia, Ecuador and Peru. This species grows to a length of 60 centimetres (24 in) SL and a maximum weight of 4.6 kilograms (10 lb). These fish are a component of local commercial fisheries.

Redhook myleusW
Redhook myleus

The redhook myleus, Myloplus rubripinnis, is a medium to large omnivorous fish of the family Serrasalmidae from South America, where found in the Amazon and Orinoco basins, as well as rivers of the Guiana Shield. It is peaceful and schools often, and can grow to a length of 39 cm (15 in). They are also called the redhook silver dollar and are one of the fish referred to as "silver dollars". These fish are capable of delivering serious bites to humans.

Ocellate river stingrayW
Ocellate river stingray

The ocellate river stingray, also known as the peacock-eye stingray or black river stingray, is a species of freshwater stingray in the family Potamotrygonidae. It was the first species to be described in the family and is also the most widespread, ranging throughout much of the Río de la Plata, Amazon, Mearim and Orinoco basins in tropical and subtropical South America. It is sometimes kept in aquaria.

Opsodoras stuebeliiW
Opsodoras stuebelii

Opsodoras stuebelii, the Maranon thorn catfish, is a species of thorny catfish from the family Doradidae which is found in the Amazon Basin in Bolivia, Brazil, Colombia, Ecuador and Peru. It is the type species of the genus Opsodoras.

Oxydoras nigerW
Oxydoras niger

The ripsaw catfish or cuiu cuiu is a species of thorny catfish native to the Amazon, Essequibo and São Francisco basins in Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru and Venezuela. This species grows to a length of 100 centimetres (39 in) SL and weights up to 13 kilograms (29 lb). This species is a minor component of local commercial fisheries. Has lateral thorns that can damage a potential predator or handler. It feeds by shifting through sand and detecting eatable parts with the taste receptors in the roof and floor of its mouth.

Paracetopsis bleekeriW
Paracetopsis bleekeri

Paracetopsis bleekeri is a species of whale catfish endemic to Ecuador where it occurs in the Guayas River basin in the southwest. This species grows to a length of 24.2 cm.

ParatrygonW
Paratrygon

Paratrygon is a monotypic genus of the cartilaginous fish in the family of Potamotrygonidae. The sole currently recognized species is Paratrygon aiereba, the discus ray, manzana ray or ceja ray, from the Amazon and Orinoco basins in South America. Genetic and morphometric evidence suggests that P. aiereba as presently defined is a species complex.

Pseudoplatystoma tigrinumW
Pseudoplatystoma tigrinum

Pseudoplatystoma tigrinum, the tiger sorubim or caparari is a species of long-whiskered catfish native to the Amazon Basin in South America.

Steatogenys elegansW
Steatogenys elegans

Steatogenys elegans, the barred knifefish, is a species of Hypopomidae found in tropical South America. It is the type species of its genus. It is an electric fish found in a wide range of freshwater habitats in the Amazon, Orinoco and Essequibo river basins. It reaches almost 30 cm (1 ft) in total length.

Sturisoma frenatumW
Sturisoma frenatum

Sturisoma frenatum is a species of armored catfish endemic to Ecuador where it occurs in rivers. This species grows to a length of 24 centimetres (9.4 in) SL.

Sturisoma panamenseW
Sturisoma panamense

Sturisoma panamense is a species of armored catfish native to Colombia, Ecuador and Panama. This species grows to a length of 26 centimetres (10 in) SL.