Costa, W.J.E.M. (2018): Three new species of the killifish genus Melanorivulus from the Rio Paraná Basin, central Brazilian Cerrado (Cyprinodontiformes, Aplocheilidae).
- Melanorivulus linearis Costa, 2018
- Melanorivulus nigromarginatus Costa, 2018
- Melanorivulus proximus Costa, 2018