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: Gymnotiformes
Familia: Hypopomidae
Genus: Microsternarchus
Species: M. bilineatus – M. brevis
Name
Microsternarchus Fernández-Yépez, 1968
Type species: Microsternarchus bilineatus Fernández-Yépez, 1968
Etymology: A combination of the Greek mikros, for small or little, and Sternarchus, another genus of hypopomid fish.
References
Fernández-Yépez, A. 1968. Contribución al conocimiento de los peces Gymnotiformes. Evencias 20: 6 unnumbered p., 5 unnumbered pls. Reference page.
Links
Microsternarchus and its species (including synonyms) in Catalog of Fishes, Eschmeyer, W.N., Fricke, R. & van der Laan, R. (eds.) 2024. Catalog of Fishes electronic version.
Microsternarchus species list in FishBase,
Froese, R. & Pauly, D. (eds.) 2024. FishBase. World Wide Web electronic publication, www.fishbase.org, version 02/2024.
Microsternarchus is a genus of bluntnose knifefish that is found in creeks and streams, often in areas with submerged vegetation, roots and leaf litter, in the Amazon, Orinoco, Essequibo–Rupununi and Río de la Plata basins in South America.[1] The two recognized species are both small knifefish, with the largest being M. bilineatus at up to 12 cm (4.7 in) in total length. The other is M. brevis, which at up to only 5.3 cm (2.1 in) is the world's smallest knifefish.[2][3] Microsternarchus are very similar to Brachyhypopomus.[4]
Species
There are currently 2 recognized species in this genus:[2]
Microsternarchus bilineatus Fernández-Yépez, 1968 (Brazil, Venezuela)
Microsternarchus brevis Cox Fernandes, A. Nogueira, A. D. Williston & Alves-Gomes, 2015[1] (Brazil)
References
Cox Fernandes, C., Nogueira, A., Williston, A. & Alves-Gomes, J.A. (2015): A new species of electric knifefish from the rio Negro, Amazon basin (Gymnotiformes: Hypopomidae, Microsternarchini). Proceedings of the Academy of Natural Sciences of Philadelphia, 164 (1): 213-227.
Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Microsternarchus". FishBase. December 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. 334. ISBN 978-0691170749.
Crampton, W.G.R.; C.D. de Santana; J.C. Waddell; N.R. Lovejoy (2016). "A Taxonomic Revision of the Neotropical Electric Fish Genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with Descriptions of 15 New Species". Neotropical Ichthyology. 14 (4). doi:10.1590/1982-0224-20150146.
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