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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. These fish are nocturnal and mostly occur in quiet waters from deep rivers to swamps.
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 the exploitation of bioelectricity. The family has 40 valid species in two genera. These fish are nocturnal and mostly occur in quiet waters from deep rivers to swamps.
3 de abr. de 2010 · Naked-back knifefishes are restricted to freshwaters of Central and South America. Body eel-like (compressed or rounded); about 100 vertebrae (31-43 precaudals, Ref. 26457); pelvic girdle and fins absent; dorsal fin absent; anal fin extremely long from near pectorals to near tip of body. Weak electrical charge.
Scientifc NameStatusSenior/junior SynonymCombinationElectrophorus voltai de Santana, ...acceptedseniororiginalElectrophorus varii de Santana, Wosiacki, ...acceptedseniororiginalElectrophorus multivalvulus Nakashima, ...synonymjuniororiginalGymnotus regius Chiaje, 1847synonymjuniororiginalThe 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 the sensastion of bioelectricity. The family has about 43 valid species in two genera. These fish are nocturnal and mostly occur in quiet waters from deep rivers to swamps.
Naked-back knifefish. Banded knifefish. Electrophorus varii. Electrophorus voltai. Gymnotus choco. Gymnotus tiquie. Category: Gymnotiformes. Hidden category: Commons category link is on Wikidata.
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 the exploitation of bioelectricity. The family has about 43 valid species in two genera. These fish are nocturnal and mostly occur in quiet waters from deep rivers to swamps.
Classification / Names Common names | Synonyms | Catalog of Fishes ( genus, species) | ITIS | CoL | WoRMS | Cloffa. Teleostei (teleosts) > Gymnotiformes (Knifefishes) > Gymnotidae (Naked-back knifefishes) > Gymnotinae. Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335).
