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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.
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) Family Rhamphichthyidae (sand knifefishes) Family Hypopomidae (bluntnose knifefishes) Family Sternopygidae (glass and rat-tail knifefishes)
Nannarrup is a genus of soil centipedes in the family Mecistocephalidae. [1] [2] This genus contains only three species, including the type species Nannarrup hoffmani. [3]Also known as Hoffman's dwarf centipede, N. hoffmani was discovered in Central Park in New York City and was the first new species to be discovered in that park in more than a century. [4]
It is part of the family Hypopomidae and is occasionally kept as an aquarium fish. [2] It lives in freshwater and grows up to 10 centimeters long. [3] References
The fish is considered good to eat in West Africa, where it has a wide but scattered distribution. It is important culturally, as it is given as a gift in community celebrations and marriages. Its conservation status is globally of least concern, but it faces local threats in West Africa from human activities including overfishing and pollution.
Hypopygus is a genus of South American gymnotiform knifefishes native to the Amazon, Orinoco and upper Paraguay basins, as well as rivers in the Guianas. [1] [2] They are often common, and found near submerged roots, aquatic vegetation and leaf-litter in streams, edges of rivers and floodplains. [1]
Mixophilus is a monotypic genus of soil centipede in the family Geophilidae.The only species in this genus is Mixophilus indicus. [1] This centipede is notable for its unusual habitat: This species is found in estuarine sediments and is the only species in the order Geophilomorpha recorded with a littoral habitat in India.
This fish reaches 30 cm (12 in) in standard length. [1] The body of these fish is unusual; it is ventrolaterally flattened and elongated, giving the appearance of a knife blade. The caudal and anal fins are fused and run from beneath the gill opening to the pointed end of the body, creating a uniform, skirt-like fin. This appendage gives the ...