Teleostei (teleosts) >
Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Acestrorhamphinae
Etymology: Oligosarcus: Greek, oligos = small + Greek arkos = anus (Ref. 45335).
More on author: Günther.
Issue
See Menezes, 1987:22 for diagnosis.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Rio Doce and Rio das Velhas basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 18.5 cm SL male/unsexed; (Ref. 130067); max. published weight: 153.00 g (Ref. 130067)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Menezes, N.A., 1987. Tres especies novas de Oligosarcus Günther, 1864 e redefinacao taxonomica das demais especies do genero (Osteichthyes, Teleostei, Characidae). Bol. Zool. (BOLZ) 11:1-39. (Ref. 35506)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
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