trifasciatus, Nannostomus Steindachner [F.] 1876:123 [75], Pl. 9 (fig. 2) [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 74 (1. Abth.); ref. 4225] Amazon River near mouth of Rio Negro and Tabatinga, Brazil. Syntypes: NMW 56522-23 (3, 5). On p. 75 of separate. •Valid as Nannostomus trifasciatus Steindachner 1876 -- (Weitzman 1966:27 [ref. 12368], Weitzman & Cobb 1975:27 [ref. 7134], Ortega & Vari 1986:10 [ref. 9708], Paepke & Arendt 2001:152 [ref. 26010], Weitzman & Weitzman in Reis et al. 2003:246 [ref. 27061], Zarske 2013:127 [ref. 32773], Sarmiento et al. 2014:81, 186 [ref. 35004], DoNascimiento et al. 2017:45 [ref. 35633], Careaga et al. 2020:76 [ref. 37774], Meza-Vargas et al. 2021:15 [ref. 39298], Taphorn et al. 2022:27 [ref. 41297], Marinho 2024:388 [ref. 40817]). Current status: Valid as Nannostomus trifasciatus Steindachner 1876. Lebiasinidae: Pyrrhulininae. Distribution: South America: Amazon, Orinoco and Essequibo River basins (Bolivia, Brazil, Colombia, Guyana and Peru). Habitat: freshwater.