Callichthyidae is a family of catfishes, called armored catfishes due to the two rows of bony plates along the lengths of their bodies. It contains some of the most popular freshwater aquarium fish, such as many species in the genus Corydoras.
The eeltail catfish are a family (Plotosidae) of catfish whose tails are elongated in an eel-like fashion. These catfishes are native to the Indian Ocean and western Pacific from Japan to Australia and Fiji. The family includes about 41 species in 10 genera. About half of the species are freshwater, occurring in Australia and New Guinea.
Trichomycteridae is a family of catfishes commonly known as pencil catfishes or parasitic catfishes. This family includes the candiru fish, feared by some people for its alleged habit of entering into the urethra of humans. They are one of the few parasitic chordates. Another species is the life monsefuano which was important to the Moche culture and still an important part of Peruvian cuisine.
The Doradidae are a family of catfishes also known as thorny catfishes, raphael catfishes or talking catfishes. These fish are native to South America, primarily the Amazon basin and the Guianas.
The Aspredinidae are a small South American family of catfishes also known as the banjo catfishes, with about 43 species.
Akysis is the largest genus of catfishes of the family Akysidae.
The gilded catfish or jau is a South American catfish of the family Pimelodidae. It is also known as manguruyu or black manguruyu.
Andersonia leptura is a species of catfish of the family Amphiliidae, and is the only species of the genus Andersonia. This fish grows to about 50.0 cm (19.7 in) in total length; it is found in the Omo, Niger, and Upper Nile Rivers and the Lake Chad basin, and is also known from Lake Debo. Although previously considered to be toothless on the lower jaw, dentition has been found on the premaxilla and the dentary. The teeth are embedded in the mucous sheath that covers the head and extends into the oral cavity, which makes the teeth difficult to see with the naked eye.
Paravandellia is a genus of pencil catfishes native to South America.
Hemiodontichthys acipenserinus is the only species of the monotypic genus Hemiodontichthys, a genus of the family Loricariidae of catfish.
Trichogenes longipinnis, is a species of catfish of the family Trichomycteridae. T. longipinnis is endemic to coastal streams in the Atlantic forest between Rio de Janeiro and São Paulo States in southeastern Brazil.
Microcambeva is a genus of catfishes of the family Trichomycteridae.
Bagarius is an Asian genus of catfishes of the family Sisoridae. It includes five to six extant species and potentially one extinct fossil species, B. gigas.
The freshwater cobbler, Tandanus bostocki, is a species of catfish of the family Plotosidae. The freshwater cobbler originates from coastal drainages of southwestern Australia, from the Frankland River to the Moore River. The species may reach about 50 centimetres (20 in) total length.
Euristhmus is a genus of eeltail catfishes native to the eastern Indian-western Pacific Oceans around Australia, New Guinea and Indonesia.
The bayad, is a species of bagrid catfish from Africa.
Aspredo aspredo is the only species of banjo catfish in the genus Aspredo.
Platystacus cotylephorus, the Banded banjo, is a species of banjo catfish. It is the only member of its genus. The genus Platystacus is the sister group to a clade containing Aspredo and Aspredinichthys. P. cotylephorus originates from coastal waters and lower portions of rivers of northern South America, from Venezuela to northern Brazil.
Micromyzon akamai is a species of catfish in the family Aspredinidae.
Siluranodon auritus is the only species in the genus Siluranodon of the catfish family Schilbeidae.
