polystictus, Metynnis Zarske [A.] & Géry [J.] 2008:184, Figs. 3-4 [Vertebrate Zoology v. 58 (no. 2); ref. 29917] Lagune en bordure du Ribeiro Tuatuari, haut rio Xingu, Brazil. Holotype: IRSNB 833. Paratypes: IRSNB 834-835 (3), 868 (5), 869 (8), 870 (6), 871 (1), 872 (4); MTD F 28486 (1). •Valid as Metynnis polystictus Zarske & Géry 2008 -- (Ota et al. 2016:11 [ref. 35002], Ota et al. 2024:410 [ref. 40817]). Current status: Valid as Metynnis polystictus Zarske & Géry 2008. Serrasalmidae: Serrasalminae. Distribution: South America: upper Xingu River, Brazil. Habitat: freshwater.