Čeleď: Stevardiidae Gill, 1858
Rod: Knodus Eigenmann, 1911
Igarapé Arapapá, Pindaré River drainage, Mearim River basin, Alto Alegre do Pindaré municipality, Maranhão State, Brazil, 03°42'26"S, 46°00'25"W.
Aguiar, R. G., Guimarães, E. C., de Brito, P. S., Santos, J. P., Katz, A. M., da S. Dias, L. J. B., Carvalho-Costa, L. F. & Ottoni, F. P. 2022. A new species of Knodus (Characiformes: Characidae), with deep genetic divergence, from the Mearim and Munim river basins, northeastern Brazil, and evidence for hidden diversity in adjacent river basins. Neotropical Ichthyology v. 20 (no. 2): e210173: 1-27.
Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds). 2024. Eschmeyer's catalog of fishes: Genera, species, references. World Wide Web.