Bagrichthys
Bagroides
Bagrus
Batasio
Chandramara
Coreobagrus
Hemibagrus
Hemileiocassis
Horabagrus
Hyalobagrus
Leiocassis
Mystus
Nanobagrus
Olyra
Pelteobagrus
Pseudobagrus
Pseudomystus
Rama
Rita
Sperata
Sundolyra [2]
Tachysurus
The Bagridae are a family of catfish that are native to Africa (Bagrus) and Asia (all other genera) from Japan to Borneo.[3] It includes about 245 species. These fish are commonly known as naked catfishes or bagrid catfishes.
Many large bagrids are important as a source of food. Some species are also kept as aquarium fishes.[3]
The dorsal fin is preceded by a spine. The adipose fin is present and can have a relatively long base in some species. The pectoral fin spine can be serrated. The body is completely naked (they have no scales). The maximum length is about 1.5 m (4.9 ft).[3] Fishes of the family Bagridae have four pairs of well-developed barbels covered by a layer of taste bud-enriched epithelium.[4]
The taxonomy of this family has changed rapidly. Nelson (2006) comments how "the family is very different from that recognized in Nelson (1994)". Claroteidae and Austroglanididae contain species that were previously bagrids. Auchenoglanididae is considered by some sources to be a subfamily of Claroteidae and by others to be its own family, sister to Heptapteridae. In addition some authorities place the genus Horabagrus in the family Horabagridae[5] together with two genera which are currently normally regarded as being in the Schilbeidae.[6]
It is unclear whether or not the family is monophyletic, and what its relationship to other catfishes might be.[3]