jenynsii, Tetragonopterus Steindachner [F.] 1877:580 [22], Pl. 3 (figs. 1-2) [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 74 (1. Abth.); ref. 4224] Rio Parahyba, Brazil. Syntypes: (7) NMW 57534-35 (3, 2). On p. 22 of separate. •Valid as Astyanax jenynsii (Steindachner 1877) -- (Bertaco & Malabarba 2001:224 [ref. 25645], Bertaco & Lucena 2006:58 [ref. 28628], Bertaco et al. 2010:267 [ref. 30864], Tagliacollo et al. 2011:41 [ref. 31138], Oliveira et al. 2013:292 [ref. 32756], Ingenito & Duboc 2014:282 [ref. 33374], da Graça et al. 2017:13 [ref. 35556], Oliveira et al. 2017:179 [ref. 35587], Salgado 2021:10 [ref. 38719]). Current status: Valid as Astyanax jenynsii (Steindachner 1877). Acestrorhamphidae: Acestrorhamphinae. Distribution: Rio Paraíba do Sul basin, eastern Brazil. Habitat: freshwater.