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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 ]
The genus Apteronotus is artificial and some of the species do not actually belong in it. The black ghost knifefish (Apteronotus albifrons) and brown ghost knifefish (Apteronotus leptorhynchus) are readily available as aquarium fish. Others are known to appear in the trade but are quite rare.
Apteronotus is a genus of weakly electric knifefish in the family Apteronotidae, distinguished by the presence of a tiny tail fin.This genus is restricted to tropical and subtropical South America (Amazon, Orinoco, Río de la Plata and Magdalena basins, as well as rivers in western Colombia and the Guianas) and Panama where found in a wide range of freshwater habitats.
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.
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Family Apteronotidae (ghost knifefishes) The featherbacks, family Notopteridae. The aba, Gymnarchus niloticus; Four other unrelated fish species not in any of the above families: Grey knifefish, Bathystethus cultratus. Blue knifefish, Labracoglossa nitida. Collared knifefish or finscale razorfish, Cymolutes torquatus. Jack-knifefish, Equetus ...
Genus Papyrocranus Greenwood, 1963. Papyrocranus afer (Günther, 1868) (reticulated knifefish) Papyrocranus congoensis (Nichols & La Monte, 1932) Genus Xenomystus Günther, 1868. Xenomystus nigri (Günther, 1868) (African brown knifefish) Subfamily Notopterinae Bleeker 1851 (Asian knifefishes, Asian featherbacks) Genus Chitala Fowler, 1934
The brown ghost knifefish (Apteronotus leptorhynchus) is a species of weakly electric knifefish in the family Apteronotidae. The brown ghost knifefish is the only vertebrate proven to have negligible brain aging thus far. [1] As such, they are extensively researched as a model species for neurological and developmental studies.