Hydrolycus armatus

Hydrolycus armatus is a species of dogtooth characin found in freshwater of tropical South America. It is sometimes known as the payara, a name it shares with the related H. scomberoides.

Hydrolycus armatus
Adult in Berlin Aquarium, Germany
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Characiformes
Family: Cynodontidae
Genus: Hydrolycus
Species:
H. armatus
Binomial name
Hydrolycus armatus
(Jardine, 1841)

This predatory fish occasionally makes its way into the aquarium trade, but it requires a very large tank. In its native range it is considered a major gamefish.

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