Lepidocharax
Lepidocharax is a genus of characins endemic to the Doce, Paraguaçu and São Francisco basins in eastern Brazil. They are small fish, that reach up to  in standard length. Species
There are currently two recognized species in this genus:

 Lepidocharax burnsi K. M. Ferreira, Menezes & Quagio-Grassioto, 2011
 Lepidocharax diamantina K. M. Ferreira, Menezes & Quagio-Grassioto, 2011

References

Diapomini
Fish of South America
Fish of Brazil
Endemic fauna of Brazil