A new species of Leporinus Agassiz, 1829 from the upper Rio Paraná basin (Characiformes, Anostomidae) with redescription of L. elongatus Valenciennes, 1850 and L. obtusidens (Valenciennes, 1837)
A. Britski, Heraldo; Luís O. Birindelli, José; Cesar Garavello, Julio
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