lepidurus, Tetragonopterus Kner [R.] 1858:80 [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 30 (no. 13); ref. 13404] Rio Guaporé, Rio Madeira, Rio Amazonas basin, Brazil. Lectotype: NMW 57566. Appeared in more detail in Kner 1859:176, Pl. 8 [ref. 2631]. Lectotype selected by Marinho & Langeani 2016:344 [ref. 34416]. •Valid as Moenkhausia lepidura (Kner 1858) -- (Ortega & Vari 1986:9 [ref. 9708], Géry 1992 [ref. 20972], Taphorn 1992:275 [ref. 23654], Lucena & Lucena 1999:235 [ref. 24225], Benine 2002:293 [ref. 26541], Benine in Reis et al. 2003:148 [ref. 27061], Marinho & Langeani 2010:878 [ref. 30927], Marinho & Langeani 2010:61 [ref. 30941], Barriga Salazar 2014:108 [ref. 35745], Sarmiento et al. 2014:185 [ref. 35004], Ramos et al. 2014:4 [ref. 35321], Oliveira & Marinho 2016:573 [ref. 34342], Marinho & Langeani 2016:340 [ref. 34416], Melo et al. 2016:133 [ref. 34701], Soares et al. 2017:262 [ref. 35237], DoNascimiento et al. 2017:51 [ref. 35633], Urbano-Bonilla et al. 2018:89 [ref. 35773], Silvano et al. 2020:79 [ref. 38133], Meza-Vargas et al. 2021:19 [ref. 39298], Koerber et al. 2022:34 [ref. 39235], Taphorn et al. 2022:18 [ref. 41297] as cf. lepidura, Cortés Hernández et al. 2023:455 [ref. 40760], Marinho & Benine 2024:230 [ref. 40817]). Current status: Valid as Moenkhausia lepidura (Kner 1858). Acestrorhamphidae: Stichonodontinae. Distribution: South America: Amazon and Orinoco Lowlands (Bolivia, Brazil, Colombia, Ecuador, Peru and Venezuela). Habitat: freshwater.