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Knifefish may refer to several knife-shaped fishes: The Neotropical or weakly electric knifefishes, order Gymnotiformes , containing five families: Family Gymnotidae (banded knifefishes and the electric eel )
Despite the name, the electric eel is a type of knifefish. The Gymnotiformes / dʒ ɪ m ˈ n ɒ t ɪ f ɔːr m iː z / are an order of teleost bony fishes commonly known as Neotropical knifefish or South American knifefish. They have long bodies and swim using undulations of their elongated anal fin.
Like the other gymnotiforms, gymnotids have classic knifefish bodies. The body is long and eel-like, the dorsal fin and pelvic fins are absent, and the anal fin is extremely long and used for movement.
Xenomystus nigri (Günther, 1868) (African brown knifefish) Subfamily Notopterinae Bleeker 1851 (Asian knifefishes, Asian featherbacks) Genus Chitala Fowler, 1934. Chitala blanci (d'Aubenton, 1965) (royal knifefish or Indochina featherback) Chitala borneensis (Bleeker, 1851) (Indonesian featherback) Chitala chitala (F. Hamilton, 1822) (Indian ...
The clown featherback (Chitala ornata), also known as the clown knifefish and spotted knifefish, is a nocturnal species of tropical fish with a long, knife-like body. This knifefish is native to freshwater habitats in Cambodia, China, Hong Kong, Laos, Macau, Thailand, and Vietnam, [2] but it has also been introduced to regions outside its native range. [1]
Common names of fish can refer to a single species; to an entire group of species, such as a genus or family; or to multiple unrelated species or groups.Ambiguous common names are accompanied by their possible meanings.
The black ghost knifefish (Apteronotus albifrons) is a tropical fish belonging to the ghost knifefish family (Apteronotidae). They originate in freshwater habitats in South America where they range from Venezuela to the Paraguay–Paraná River, including the Amazon Basin. [2] They are popular in aquaria. The fish is all black except for two ...
The ghost knifefishes are a family, Apteronotidae, of ray-finned fishes in the order Gymnotiformes.These fish are native to Panama and South America. [1] They inhabit a wide range of freshwater habitats, but more than half the species in the family are found deep in rivers (typically deeper than 5 m or 16 ft) where there is little or no light.