Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic. Tropical
South America: river basins of Pará, lower Amazon in Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 22.9 cm SL male/unsexed; (Ref. 75002)
Short description
Identification keys | Morphology | Morphometrics
Vertebrae: 35 - 37. Diagnosed by the following characters: dental formula 4/4; 39-41 scales in the lateral line; 5/5 transversal series of scales; 16 circumpeduncular series of scales (Ref. 75002).
Body shape (shape guide): fusiform / normal.
Distinct pairs breed on densely grown weedy places (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairs breed on densely grown weedy places (Ref. 205).
Garavello, J.C. and H.A. Britski, 2003. Anostomidae (Headstanders). p. 71-84. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36801)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
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