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Characiformes (Characins) >
Hemiodontidae (Halftooths)
Etymology: Bivibranchia: Latin, bivium = a place where two ways meet; from Latin bi = two + latin, via = way; having or offering two ways; 1877 + Greek, brangchia = gills (Ref. 45335).
Eponymy: Henry Weed Fowler (1878–1965) was an American herpetologist, ornithologist, ichthyologist and artist. [...] (Ref. 128868), visit book page.
More on author: Steindachner.
Taxonomic Remarks
No recent work; see Eigenmann (1912: 259) for description.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique; pH range: 5.5 - 7.6; dH range: ? - 25. Tropical; 22°C - 28°C (Ref. 2060)
South America: Negro, Tocantins, Xingu, Tapajós, Madeira, Essequibo, and Orinoco River basins.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 19.2 cm TL mâle / non sexé; (Ref. 111518); poids max. publié: 68.00 g (Ref. 111518)
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00399 - 0.01146), b=3.15 (2.99 - 3.31), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Réf.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Vulnérabilité de la pêche (Ref.
59153): Low vulnerability (10 of 100).
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