Issue
See Vari (1982: 188) for a detailed description; synonymy above is based on personal observation and examination of types. Lectotype of H. argenteus by present designation.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Orinoco River basin; Japurá, Jutai, Negro, Tapajós, and Uatumã River basins; Rupununi, Corantijn, Itapecuru, and Mearim River basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 23.7 cm SL male/unsexed; (Ref. 38289)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing (Ref. 205).
Langeani, F., 2003. Hemiodontidae (Hemiodontids). p. 96-100. 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. 38289)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
Tools
Special reports
Download XML
Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00491 - 0.02339), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.7 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).