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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 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.
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.
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.
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 ...
Could this be the “Mekong Ghost,” they asked - an elusive fish that hadn’t been seen since 2005 and was feared extinct? When scientists heard reports that a large, mysterious fish had been ...
A 'Ghost Fish' Has Been Spotted Alive For First Time. The NOAA Office of Ocean Exploration and Research recently shared footage documenting what is believed to be the first known sighting of a ...
They are typically slow to moderate swimmers, and some examples include rays, bowfin, and knife fishes. The black ghost knife fish is a Gymnotiform swimmer that has a very long ventral ribbon fin. Thrust is produced by passing waves down the ribbon fin while the body remains rigid. This also allows the ghost knife fish to swim in reverse.