Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Otomorpha
Subcohors: Ostariophysi
Sectio: Otophysa
Ordo: Characiformes
Familia: Serrasalmidae
Genus: Metynnis
Species (16): M. altidorsalis – M. argenteus – M. cuiaba – M. fasciatus – M. guaporensis – M. hypsauchen – M. lippincottianus – M. longipinnis – M. luna – M. maculatus – M. melanogrammus – M. mola – M. orinocensis – M. otuquensis – M. polystictus – M. unimaculatum
Name
Metynnis Cope, 1878: 692
Gender: masculine.
Type species: Metynnis luna Cope, 1878.
Fixation: type by monotypy.
Synonyms
Myleocollops Eigenmann, 1903: 147
Gender: masculine.
Type species: Metynnis goeldii Eigenmann, 1903 (= Myletes lippincottianus Cope, 1870)
Fixation: type by original designation (also monotypic).
Sealeina Fowler, 1907: 478
Gender: feminine.
Type species: Myletes lippincottianus Cope, 1870.
Fixation: type by original designation (also monotypic).
References
Primary references
Cope, E.D. 1878. Synopsis of the fishes of the Peruvian Amazon, obtained by Professor Orton during his expeditions of 1873 and 1877. Proceedings of the American Philosophical Society, 17(101): 673–701. BHL
Eigenmann, C.H. 1903. New genera of South American fresh-water fishes, and new names for old genera. Smithsonian Miscellaneous Collections, 45: 144–148. BHL
Fowler, H.W. 1907. Further knowledge of some heterognathous fishes. Part II. Proceedings of the Academy of Natural Sciences of Philadelphia 58(for 1906): 431–483. BHL
Links
Cope, 1878 – Taxon details on Integrated Taxonomic Information System (ITIS).
Metynnis and its species (including synonyms) in Catalog of Fishes, Eschmeyer, W.N., Fricke, R. & van der Laan, R. (eds.) 2023. Catalog of Fishes electronic version.
Metynnis species list in FishBase,
Froese, R. & Pauly, D. (eds.) 2023. FishBase. World Wide Web electronic publication, www.fishbase.org, version 06/2022.
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
Froese, Rainer and Pauly, Daniel, eds. (2017). Species of Metynnis in FishBase. May 2017 version.
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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