| 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.
Species
There are currently 15 recognized species in this genus:[1]
- Metynnis altidorsalis C. G. E. Ahl, 1923
- Metynnis argenteus C. G. E. Ahl, 1923 (silver dollar)
- Metynnis cuiaba Pavanelli, Ota & Petry, 2009
- Metynnis fasciatus C. G. E. Ahl, 1931
- Metynnis guaporensis C. H. Eigenmann, 1915
- Metynnis hypsauchen (J. P. Müller & Troschel, 1844) (silver dollar)
- Metynnis lippincottianus (Cope, 1870) (spotted silver dollar)
- Metynnis longipinnis Zarske & Géry, 2008 (silver dollar)
- Metynnis luna Cope, 1878
- Metynnis maculatus (Kner, 1858) (spotted metynnis)
- Metynnis melanogrammus Ota, Rapp Py-Daniel & Jégu, 2016[3]
- Metynnis mola C. H. Eigenmann & C. H. Kennedy, 1903
- Metynnis orinocensis (Steindachner, 1908)
- Metynnis otuquensis C. G. E. Ahl, 1923
- Metynnis polystictus Zarske & Géry, 2008 (silver dollar)
References
- 1 2 3 Froese, Rainer and Pauly, Daniel, eds. (2017). Species of Metynnis in FishBase. May 2017 version.
- 1 2 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.
- ↑ Ota, R.P., Rapp Py-Daniel, L.H. & Jégu, M. (2016): A new Silver Dollar species of Metynnis Cope, 1878 (Characiformes: Serrasalmidae) from Northwestern Brazil and Southern Venezuela. Neotropical Ichthyology, 14 (4): e160023.
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