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A new species of the lowland Oligosarcus Günther species group (Teleostei: Ostariophysi: Characidae)
2015
Neotropical Ichthyology
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A new characid species is described from the rio Jacuí basin, a coastal drainage from southern Brazil. Itis morphologically most similar to its sympatric congeners Oligosarcus jenynsii and O. jacuiensis , but can be distinguished from both species in having the interorbital region wider and the pectoral fin shorter and additionally from O. jenynsii in having a smaller orbital diameter.
doi:10.1590/1982-0224-20150083
fatcat:2rawofuppncnhkfwcardtrccvy