Acentronichthys Eigenmann [C. H.] & Eigenmann [R. S.] 1889:28 Masc. Acentronichthys leptos Eigenmann & Eigenmann 1889. Type by original designation (also monotypic). •Synonym of Heptapterus Bleeker 1858 -- (Mees 1974:177 [ref. 2969], Buckup 1988:644 [ref. 6635]). •Valid as Acentronichthys Eigenmann & Eigenmann 1889 -- (see Stewart 1986:668 [ref. 5211], de Pinna 1998:315, 316 [ref. 23847], Bockmann & Guazzelli in Reis et al. 2003:410 [ref. 27061], Ferraris 2007:180 [ref. 29155], Bockmann & Castro 2010:692 [ref. 31072]). Current status: Valid as Acentronichthys Eigenmann & Eigenmann 1889. Heptapteridae: Heptapterinae.