Metynnis
| Metynnis | |
|---|---|
| Metynnis hypsauchen | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Characiformes |
| Family: | Serrasalmidae |
| Subfamily: | Serrasalminae |
| Genus: | 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.
Though part of the subfamily Serrasalminae, members of this genus are not commonly called piranhas, due to their largely herbivorous diets.[3]
Species
There are currently 15 recognized species in this genus:[1]
| Species | Image |
|---|---|
| Metynnis altidorsalis
C. G. E. Ahl, 1923 |
|
| Metynnis argenteus (silver dollar)
C. G. E. Ahl, 1923 |
|
| Metynnis cuiaba
Pavanelli, Ota & Petry, 2009 |
|
| Metynnis fasciatus
C. G. E. Ahl, 1931 |
|
| Metynnis guaporensis
C. H. Eigenmann, 1915 |
|
| Metynnis hypsauchen (silver dollar)
(J. P. Müller & Troschel, 1844) |
|
| Metynnis lippincottianus (spotted silver dollar)
(Cope, 1870) |
|
| Metynnis longipinnis (silver dollar) | |
| Metynnis luna
Cope, 1878 |
|
| Metynnis maculatus (spotted metynnis)
(Kner, 1858) |
|
| Metynnis melanogrammus | |
| Metynnis mola
C. H. Eigenmann & C. H. Kennedy, 1903 |
|
| Metynnis orinocensis
(Steindachner, 1908) |
|
| Metynnis otuquensis
C. G. E. Ahl, 1923 |
|
| Metynnis polystictus (silver dollar) |
References
- ^ a b c 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.
- ^ Kolmann, M A; Hughes, L C; Hernandez, L P; Arcila, D; Betancur-R, R; Sabaj, M H; López-Fernández, H; Ortí, G (2021-05-01). "Phylogenomics of Piranhas and Pacus (Serrasalmidae) Uncovers How Dietary Convergence and Parallelism Obfuscate Traditional Morphological Taxonomy". Systematic Biology. 70 (3): 576–592. doi:10.1093/sysbio/syaa065. ISSN 1063-5157.
- ^ 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.