Typový druh
Simpsonichthys constanciae Myers, 1942.
Původní popis
Costa, W. J. E. M. 2006. Descriptive morphology and phylogenetic relationships among species of the neotropical annual killifish genera *Nematolebias* and *Simpsonichthys* (Cyprinodontiformes: Aplocheiloidei: Rivulidae). Neotropical Ichthyology v. 4 (no. 1): 1-26.
Použitá literatura
Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds). 2026. Eschmeyer's catalog of fishes: Genera, species, references. World Wide Web.