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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]
Type species. Gymnotus carapo. Linnaeus, 1758. Despite the name, the Electric Eel is a type of knifefish. The Gymnotiformes / dʒɪmˈnɒtɪfɔːrmiːz / 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.
Gymnarchus niloticus – commonly known as the aba, aba aba, frankfish, freshwater rat-tail, poisson-cheval, or African knifefish – is an electric fish, and the only species in the genus Gymnarchus and the family Gymnarchidae within the order Osteoglossiformes. It is found in swamps, lakes and rivers in the Nile, Turkana, Chad, Niger, Volta ...
Chitala chitala. F. Hamilton, 1822. Chitala chitala (Assamese: চিতল sitawl, Bengali: চিতল, chitol) is a knifefish from Bangladesh, India, Nepal, and Pakistan, [1] found in the Brahmaputra, Indus, Ganges and Mahanadi River basins. [2] It is sometimes known as the Indian featherback or Indian knifefish. [3] In the past, it ...
A. albifrons. Binomial name. Apteronotus albifrons. (Linnaeus, 1766) 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]
Featherbacks have slender, elongated, bodies, giving them a knife-like appearance. The caudal fin is small and fused with the anal fin, which runs most of the length of the body. Where present, the dorsal fin is small and narrow, giving rise to the common name of "featherback". The fish swims by holding its body rigid and rippling the anal fin ...
D. S. Jordan, 1923. 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 ...
Electrophorus. Gymnotus. The naked-back knifefishes are a family (Gymnotidae) of knifefishes found only in fresh waters of Central America and South America. All have organs adapted to electroreception. The family has about 43 valid species in two genera. [1] These fish are nocturnal and mostly occur in quiet waters from deep rivers to swamps.