Bryconacidnus Myers [G. S.] in Eigenmann & Myers 1929:545 Masc. Hyphessobrycon ellisi Pearson 1924. Type by original designation. •Valid as Bryconacidnus Myers 1929 -- (Géry 1977:398 [ref. 1597], Pavanelli in Reis et al. 2003:114 [ref. 27061], Menezes et al. 2009:147 [ref. 30247], Mirande 2009:8 [ref. 30267] and Mirande 2010:533 [ref. 31006] in Characidae, Stevardiinae with question, Sarmiento et al. 2014:184 [ref. 35004], Thomaz et al. 2015:8 [ref. 33893] in Stevardiinae, tribe Diapomini, Melo et al. 2024:11 [ref. 41541] in Diapominae). Current status: Valid as Bryconacidnus Myers 1929. Stevardiidae: Diapominae.