| Reference no. | Description | Year | Name Used | Page |
|---|---|---|---|---|
| 30821 | Costa, W.J.E.M., D.T.B. Nielsen and A.C. de Luca, 1977. Quatro novos rivulideos anuais do gênero Simpsonichthys (Cyprinodontiformes) das bacias dos rios São Francisco e Pardo, Brasil. Rev. Fr. Aquariol. 4(1):24-31. | 1977 | Simpsonichthys perpendicularis | 26;fig. |
| 36579 | Costa, W.J.E.M., 2003. Rivulidae (South American Annual Fishes). p. 526-548. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. | 2003 | Simpsonichthys perpendicularis | 542 |
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