Loricariidae is the largest family of catfish, with 92 genera and just over 680 species. Loricariids originate from freshwater habitats of Costa Rica, Panama, and tropical and subtropical South America. These fish are noted for the bony plates covering their bodies and their suckermouths. Several genera are sold as "plecos", notably the suckermouth catfish, Hypostomus plecostomus, and are popular as aquarium fish.
Hypostomus is a genus of catfish in the family Loricariidae. They are native to tropical and subtropical South America. H. plecostomus is the popular freshwater aquarium fish formerly known as Plecostomus plecostomus. The taxonomic structure of the Loricariidae is still being expanded by scientists. Hypostomus is a highly species-rich and widely distributed catfish genus.
Pseudancistrus is a genus of suckermouth armored catfishes native to South America.
Rineloricaria is a genus of freshwater tropical catfish belonging to the family Loricariidae. They are commonly called whiptail catfish because of the long filament that grows out of the tip of the caudal fin that is characteristic of the genus. With the exception of R. altipinnis from Panama, they are native to the rivers of northern and central South America. Some species are regularly seen in the aquarium trade.
Peckoltia is a genus of small South American armored suckermouth catfishes. Many of these fish are popular aquarium fish.
Loricariinae is a subfamily of the family Loricariidae of catfish. This subfamily is divided into two tribes and about 30 genera. They are mainly native to freshwater habitats in South America, but there are also several species in Panama and a single (Fonchiiichthys) in Costa Rica.
Dentectus barbarmatus is the only species of the monotypic genus Dentectus, a genus of armored catfish.
Planiloricaria cryptodon is the only species of the monotypic genus Planiloricaria, a genus of the family Loricariidae of catfish.
Rhadinoloricaria is a genus of catfish endemic to South America. It was considered to be monotypic until the 2020 discovery of a second species.
Rhadinoloricaria macromystax is a species of catfish in the family Loricariidae and the genus Rhadinoloricaria. The genus was monotypic until 2020, when a new species, R. stewarti, was described.
Crossoloricaria is a genus of armored catfish native to South America with one species ranging into Central America.
Ixinandria steinbachi is the only species in the genus Ixinandria of catfish of the family Loricariidae.
Harttia is a genus of armored catfishes native to South America.
Loricaria is a genus of armored catfish native to South America.
Lamontichthys is a genus of armored catfishes native to South America.
Metaloricaria is a genus of armored catfishes native to South America.
Sturisomatichthys is a genus of armored catfishes native to Central and South America.
Dasyloricaria is a genus of armored catfishes native to Central and South America. The distribution of these species includes the northwestern South America on the Pacific slope of Colombia and Panama. Its distribution is restricted to the Pacific slope of the Andes, which is a unique pattern of distribution within the subfamily.
Pseudohemiodon is a genus of armored catfishes native to South America.
Hemiodontichthys is a monotypic genus of the family Loricariidae of catfish. Its only species is Hemiodontichthys acipenserinus.
