Nematobrycon Eigenmann [C. H.] 1911:215 Masc. Nematobrycon palmeri Eigenmann 1911. Type by monotypy. •Valid as Nematobrycon Eigenmann 1911 -- (Géry 1977:386 [ref. 1597], Pavanelli in Reis et al. 2003:150 [ref. 27061]). •Valid as Nematobrycon Eigenmann 1911 -- (Mirande 2010:521 [ref. 31006] in Characidae, subfamily Gymnocharacinae, Oliveira et al. 2011:13 [ref. 31685], Melo et al. 2024:28 [ref. 41541] in Rhoadsiinae). Current status: Valid as Nematobrycon Eigenmann 1911. Acestrorhamphidae: Rhoadsiinae.