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Actinopterygii (ray-finned fishes) > Characiformes (Characins) > Characidae (Characins) > Incertae sedis
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mithology (Ref. 45335); longirhinus: Name from Latin ‘longi’ for elongated and Greek ‘rhinos’ meaningnose; referring to the elongated snout of this species, distinctive in Astyanax.

Environment / Climate / Range Ecology

Freshwater; benthopelagic. Tropical, preferred ?

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Middle and lower Iguaçu Basin in Brazil.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 18.6 cm SL male/unsexed; (Ref. 85756)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 11; Anal soft rays: 18 - 20. This species is distinguished from all its congeners from Rio Iguaçu by the following set of characters: third infraorbital narrow and deep, not in contact with preopercle, leaving an ample naked area between these bones; teeth of premaxillary series straight; symphysal teeth of premaxillary internal series and dentary teeth tricuspid; teeth on premaxillary external series often tricuspid, with lateral cusps minute when pentacuspid; rest of teeth in premaxillary internal series pentacuspid; maxillary bone long, forming an obtuse angle with premaxillary bone when mouth is closed; dentary large and provided with 4 large tricuspidate, followed by 3-5 tricuspid or pentacuspid teeth (Ref. 85756).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Garavello, J.C.I. and F.A.A. Sampaio, 2010. Five new species of genus Astyanax Baird & Girard, 1854 from Rio Iguaçu, Paraná, Brazil (Ostariophysi, Characiformes, Characidae). Brazilian Journal of Biology 70(3):847-865. (Ref. 85756)

IUCN Red List Status (Ref. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Human uses

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Internet sources

Astyanax longirhinus Garavello & Sampaio, 2010