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> Gymnotiformes (Knifefishes) > Gymnotidae (Naked-back knifefishes) > Gymnotinae
Etymology: Gymnotus: Greek, gymnos = naked (Ref. 45335); onca: Named for the jaguar Panthera onca, referring to the characteristic color pattern of broad irregular dark pigment blotches. Noun in apposition.

Environment: milieu / climate zone / depth range / distribution range Ekologi

; air tawar dasar (demersal). Subtropical

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | Point map | Introduksi | Faunafri

South America: upper Amazon River basin, Brazil.

Size / Weight / umur

Maturity: L_m ? range ? - ? cm
Max length : 12.0 cm TL jantan/; (Ref. 36692)

deskripsi pendek Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik

Possess broad irregular dark pigment blotches without alternating light and dark pigments bands and very short head (head length 8.8% TL versus 9-13).

Facultative air-breathing in the genus (Ref. 126274); Collected in a whitewater floating meadow of the floodplain in the Tefé region (Ref. 41292).

Life cycle and mating behavior Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva

rujukan utama Upload your references | Acuan | Koordinator : Campos-da-Paz, Ricardo | mitra

Albert, J.S. and W.G.R. Crampton, 2001. Five new species of Gymnotus (Teleostei: Gymnotiformes) from an upper Amazon floodplain, with descriptions of electric organ discharges and ecology. Ichthyol. Explor. Freshwat. 12(3):241-266. (Ref. 41292)

Status IUCN Red List (Ref. 130435: Version 2024-1)

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Gymnotus onca Albert & Crampton, 2001