Mylesinus

Mylesinus is a genus of serrasalmids from South America, where found in the eastern Amazon, Essequibo and Orinoco basins. They are rheophilic, typically found at rapids and mainly feed on Podostemaceae plants.^[1][2] Because of their habitat preference, they are threatened by the building of dams.^[2] They reach up to 35 cm (1.15 ft) in standard length,^[3] and the adult males have a double-lobed anal fin and several filamentous extensions on the dorsal fin.^[4]

Mylesinus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Characiformes
Family:	Serrasalmidae
Genus:	Mylesinus Valenciennes, 1850
Type species
Mylesinus schomburgkii Valenciennes, 1850

Species

There are three recognized species:^[3]

• Mylesinus paraschomburgkii Jégu, dos Santos & E. J. G. Ferreira, 1989
• Mylesinus paucisquamatus Jégu & dos Santos, 1988
• Mylesinus schomburgkii Valenciennes, 1850

References

1. J.E.P. Cyrino, ed. (2008). Feeding and Digestive Functions in Fishes. p. 28. ISBN 978-1-4398-4269-0.
2. O.B. Vitorino Júnior; C.S. Agostinho; F.M. Pelicice (2016). "Ecology of Mylesinus paucisquamatus Jégu & Santos, 1988, an endangered fish species from the rio Tocantins basin" (PDF). Neotrop. Ichthyol. 14 (2). doi:10.1590/1982-0224-20150124. S2CID 56155368.
3. Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Mylesinus". FishBase. April 2013 version.
4. van der Sleen, P.; J.S. Albert, eds. (2017). Field Guide to the Fishes of the Amazon, Orinoco, and Guianas. Princeton University Press. p. 184. ISBN 978-0691170749.