| Citation | Costa, W.J.E.M., 2007, Simpsonichthys nigromaculatus, a new miniature seasonal killifish from the upper rio Paraná basin, central Brazil (Teleostei: Cyprinidontiformes: Rivulidae).. Ichthyol. Explor. Freshwat. 18(3):199-203. |
| Ref. | 75131 Costa, W.J.E.M., 2007 |
| Page | 200 |
| Named Used as Valid | Simpsonichthys nigromaculatus |
| Comment | |
| Locality | |
| Distribution | Brazil |
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