santosi, Leporinus Britski [H. A.] & Birindelli [J. L. O.] 2013:26, Figs. 1-2 [Neotropical Ichthyology v. 11 (no. 1); ref. 32699] Parauapebas, igarapé de Pojuca, tributary of rio Itacaiúnas, at Caldeirão, approximately 5°52'S, 50°32'W, Pará, Brazil. Holotype: MZUSP 110000. Paratypes: ANSP, INPA, MZUSP. •Valid as Hypomasticus santosi (Britski & Birindelli 2013) -- (Sidlauskas et al. 2025:20 [ref. 41973]). Current status: Valid as Hypomasticus santosi (Britski & Birindelli 2013). Anostomidae: Leporininae. Distribution: South America: lower Tocantins River drainage, Pará State, Brazil. Habitat: freshwater.