tridentata, Moenkhausia Holly [M.] 1929:117 [1] [Anzeiger der Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Klasse v. 66 (no. 13) (for 2 May 1929); ref. 16088] Piquirão, Amazon River, Brazil. Holotype (unique): NMW 8947. Type catalog: Bogutskaya et al. 2022:47 [ref. 39277]. On p. 1 of separate. •Valid as Moenkhausia tridentata Holly 1929, but species inquirenda -- (Benine in Reis et al. 2003:150 [ref. 27061], Marinho & Benine 2024:237 [ref. 40817]). •Valid as Moenkhausia tridentata Holly 1929 -- (Zarske & Géry 2006:13 [ref. 29010]). Current status: Uncertain as Moenkhausia tridentata Holly 1929. Acestrorhamphidae: Stichonodontinae. Distribution: South America: Amazon River basin (Brazil). Habitat: freshwater.