Teleostei (teleosts) >
Characiformes (Characins) >
Cynodontidae (Dogtooth characins)
Etymology: Rhaphiodon: Greek, rhamphos = bill, peak + Greek, odous = teeth (Ref. 45335).
More on authors: Spix & Agassiz.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic. Tropical
South America: Amazon, Orinoco, and Paraná River basins (Paraná, Paraguay and Uruguay rivers) and rivers of Guyana.
Length at first maturity / Size / Weight / Age
Maturity: Lm 31.5  range ? - ? cm
Max length : 80.0 cm SL male/unsexed; (Ref. 81048); max. published weight: 2.1 kg (Ref. 40637)
Apparently carnivorous, probably ichthyophagous. Maximum length reported to reach 64 cm SL (Ref. 26147).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Toledo-Piza, M., 2003. Cynodontidae (Cynodotids). p. 234-237. 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. 38270)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial; gamefish: yes; aquarium: public aquariums
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00211 - 0.00520), b=3.17 (3.04 - 3.30), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 4.5 ±0.80 se; based on food items.
Fishing Vulnerability (Ref.
59153): High vulnerability (59 of 100).