Taxa named by Rosa Smith Eigenmann

The Pimelodidae, commonly known as the long-whiskered catfishes, are a family of catfishes (order Siluriformes) native to South America. The family has a wide variety of body plans, and include the largest South American catfish species, the piraíba. Many species, including the piraíba, are locally valued as food, and even more specia of Paisley are of interest to aquaria.

The genus Panaque contains a small number of small to medium-sized South American suckermouth armoured catfishes that are notable for being among the very few vertebrates that feed extensively on wood. In addition, algae and aufwuchs are an important part of the diet, and they use their rasping teeth to scrape this from rocks. These fish are also popular aquarium fish, where the sound of scraping as these fish forage for food is easily audible.

Farlowella is a genus of freshwater ray-finned fishes belonging to the family Loricariidae, the suckermouth armored catfishes, and the subfamily Loricariinae, the mailed catfishes. The catfishes in this genus are found in South America. It is broadly distributed in the Amazon, Orinoco and Paraná rivers as well as coastal rivers of the Guyana Shield, but absent from the Pacific slope of the Andes and from the coastal rivers of the Brazilian Shield. Species of this genus have an extremely slender and elongated body resembling a thin stick of wood. There is a pronounced rostrum and the body is br

species of catfish

thumb|right| Headlight fish (D. effulgens)

Parotocinclus is a genus of fish in the family Loricariidae native to South America. This genus is distributed through almost all hydrographic systems in South America from the Guyana Shield drainages and Amazon Shield tributaries to the coastal drainages of eastern and southeastern Brazil, including the rio São Francisco basin. Most species have the caudal peduncle oval in cross section.

species of fish

Hisonotus is a genus of armored catfishes native to South America. Species of Hisonotus and Curculionichthys are the only representatives of the subfamily Otothyrinae having serrae on the posterior edge of the pectoral fin spine. These species are small fishes, generally found in small fast flowing streams, where they grasp to the branches and leaves of aquatic or subaquatic plants. The species of this genus mostly occur in Atlantic coastal streams of southern Brazil and the Paraguay-Paraná system of southern South America. They are also distributed in the Río de La Plata basin and coastal riv

species of fish

species of fish

Miuroglanis is a monospecific genus of freshwater ray-finned fish belonging to the family Trichomycteridae, the pencil and parasitic catfishes. The only species in the genus is Miuroglanis platycephalus. This species is endemic to Brazil where it occurs in the Solimões River basin. This species grows to a length of NG.

Pimelodella is a genus of three-barbeled catfishes.

species of fish

species of fish

species of fish

Stenobrachius is a genus of lanternfishes.

species of fish

Neoplecostomus is a genus of fish in the family Loricariidae native to South America. Neoplecostomus can be distinguished from all other loricariids by a modified shield of small plates on the abdomen with posteriorly directed odontodes; the shield appears to act as a holdfast. The color pattern is generally mottled brown with the abdomen white. The head is long, rounded, and shovel-shaped. The fin spines are weak. They range from about SL. The species of Neoplecostomus live in fast-flowing water.

type of rockfish

species of fish

Pseudostegophilus is a genus of freshwater ray-finned fish belonging to the family Trichomycteridae, the pencil and parasitic catfishes, and the subfamily Stegophilinae, the parasitic catfishes. These catfishes are found in rivers in tropical South America. The members of this genus are obligate parasites that feed on scales and mucus of other fish.

Oxyropsis is a genus of fish in the family Loricariidae native to South America. These species are distinguished by the presence of a single row of enlarged odontodes along the trunk midline lying adjacent and immediately dorsal to, the lateral line canal. Species of this genus have a depressed head and have relatively large eyes placed ventrolaterally. This genus is most similar to Hypoptopoma in external appearance, which shares the head shape and eye placement. Oxyropsis are elongate and have a narrow caudal peduncle, which distinguishes it from all other Hypoptopomatinae genera except Niob

species of fish

species of fish

species of fish

Rhamdella is a genus of three-barbeled catfishes native to South America.

species of fish

The Hypoptopomatinae are a subfamily of catfishes (order Siluriformes) of the family Loricariidae, composed of 32 genera and approximately 265 species. This subfamily represents about one-tenth of all loricariid species.

species of fish

Hemipsilichthys is a genus of freshwater ray-finned fishes belonging to the family Loricariidae, the armoured suckermouth catfishes, and the subfamily Delturinae, the primitive suckermouth catfishes. These wide-mouthed freshwater catfishes are restricted to southeast Brazil in the Paraíba do Sul, Perequê-Áçu and Taquari river basins. Hemipsilichthys, along with Delturus, form a clade (Delturinae). In these two genera, members have a ridge behind their dorsal fin and an adipose fin membrane. However, in Hemipsilichthys, the dorsal fin membrane and most anterior plate of the adipose fin do not t

species of fish

Tarletonbeania is a genus of lanternfishes found in the Pacific Ocean.

species of fish

species of fish

species of fish

species of fish

Delturus is a genus of freshwater ray-finned fishes belonging to the family Loricariidae, the suckermouth armored catfishes. It is the type genus of the subfamily Delturinae, the catfishes in this subfamily are known as primitive suckermouth catfishes. These catfishes are endemic to Brazil.

species of fish

Curimatella is a genus of freshwater ray-finned fishes belonging to the family Curimatidae, toothless characins. The fishes in this genus are found in South America.

Microlepidogaster is a genus of armored catfishes native to South America.

species of armored catfish endemic to Brazil

genus of thorny catfishes native to South America

species of fish

Nemuroglanis is a genus of three-barbeled catfishes. With the exception of N. panamensis from Panama, they are native to tropical South America.

Steindachneridion is a genus of South American pimelodid catfish (order Siluriformes).

species of fish

species of fish

species of fish

Psectrogaster is a genus of freshwater ray-finned fishes belonging to the family Curimatidae, the toothless characins. The fishes in this genus are found in tropical South America.

Duopalatinus is a small genus of long-whiskered catfishes native to South America.

species of fish

Acentronichthys leptos is the only species of catfish (order Siluriformes) in the genus Acentronichthys of the family Heptapteridae. This species occurs in coastal streams in Brazil from Rio de Janeiro to Santa Catarina State, in São Mateus, Espírito Santo State and on Leopoldina, Minas Gerais. This species grows to in SL.

Luciopimelodus pati is a South American species of freshwater long-whiskered catfish that inhabits the basin of the Río de la Plata and the Blanco River of Argentina, Brazil and Paraguay. Its scientific name originates from its common name patí, though it may be simply referred to as pez gato ("catfish") in Spanish. This species is the only recognized species in its genus.