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Characiformes (Characins) >
Hemiodontidae (Halftooths)
Etymology: Hemiodus: Greek, hemi = half + Greek, odous = teeth (Ref. 45335).
Eponymy: Dr Carl Ternetz (1870–1928) was a Swiss-born ichthyologist and naturalist who first collected near Basel (1892) and subsequently collected in South America over a period of more than thirty years (from c. [...] (Ref. 128868), visit book page.
More on author: Myers.
Issue
See Langeani (1999: 719 and Tab. 1) for some diagnostic characters and comparison with other species.
Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
; agua dulce bentopelágico. Subtropical
South America: Tocantins River basin in Brazil.
Tamaño / Peso / Age
Madurez: Lm ?  range ? - ? cm
Max length : 21.5 cm SL macho / no sexado; (Ref. 125983); 25.2 cm (female); peso máximo publicado: 244.94 g (Ref. 125983); peso máximo publicado: 244.94 g
Short description
Claves de identificación | Morfología | Morfometría
Dorsal fin plain, with no blotches; longitudinal stripe starting point behind the eye.
Body shape (shape guide): elongated.
Iteroparous synchronous spawner (Ref. 51777).
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Distinct pairing (Ref. 205).
Langeani, F., 1999. New species of Hemiodus (Ostariophysi, Characiformes, Hemiodontidae) from the Rio Tocantins, Brazil, with comments on color patterns and tooth shapes within the species and genus. Copeia 1999(3):718-722. (Ref. 31397)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Phylogenetic diversity index (Referencia
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00508 - 0.01300), b=3.23 (3.09 - 3.37), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Nivel trófico (Referencia
69278): 2.7 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
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