semifasciata, Pyrrhulina Steindachner [F.] 1876:7 [2], Pl. 1 (figs. 1-2a) [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 72 (1. Abth.); ref. 14212] Rio Negro mouth; Cudajas, Gurupa and Tabatinga, Brazil. Syntypes: (several) ?MCZ 6317 (8) Gurupa, 6345 (1) Tabatinga, 6367 (20) Tabatinga, 6858 (25) Tabatinga; ZMUC 42 (1?) Amazonas; NMW 56975-78 (3, 2, 1, 3), 56980 (2), 56986 (1). Type catalog: Nielsen 1974:44 [ref. 9588]. On p. 2 of separate. •Questionably a synonym of Pyrrhulina lugubris Eigenmann 1922 -- (Taphorn 1992:472 [ref. 23654]). •Valid as Pyrrhulina semifasciata Steindachner 1876 -- (Ortega & Vari 1986:11 [ref. 9708], Weitzman & Weitzman in Reis et al. 2003:248 [ref. 27061], Netto-Ferreira & Marinho 2013:374 [ref. 32716], Barriga Salazar 2014:110 [ref. 35745], DoNascimiento et al. 2017:44 [ref. 35633], Vieira & Netto-Ferreira 2019:7 [ref. 36867], Meza-Vargas et al. 2021:15 [ref. 39298], Netto-Ferreira 2024:392 [ref. 40817]). Current status: Valid as Pyrrhulina semifasciata Steindachner 1876. Lebiasinidae: Pyrrhulininae. Distribution: South America: Amazon River basin (Brazil, Colombia, Ecuador, Guyana, Peru and Venezuela). Habitat: freshwater.