| Metynnis | |
|---|---|
| |
| Metynnis hypsauchen | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Characiformes |
| Family: | Serrasalmidae |
| Genus: | Metynnis Cope, 1878 |
| Type species | |
| Metynnis luna Cope, 1878
| |
Metynnis is a genus of serrasalmid fish from tropical and subtropical South America.[1] They are herbivorous or omnivorous, and inhabit a wide range of freshwater habitats, ranging from rivers and streams (both fast- and slow-flowing), to floodplains, flooded forests, lakes, pools and reservoirs.[2] They generally reach 8–15 cm (3–6 in) in standard length,[2] although a few species may reach up to 18 cm (7 in).[1] The genus contains many of the species known as silver dollars in the aquarium trade.
- ^ a b Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Metynnis". FishBase. May 2017 version.
- ^ a b van der Sleen, P.; J.S. Albert, eds. (2017). Field Guide to the Fishes of the Amazon, Orinoco, and Guianas. Princeton University Press. p. 183-184. ISBN 978-0691170749.