Arnoldichthys Myers [G. S.] 1926:174 Masc. Petersius spilopterus Boulenger 1909. Type by original designation (also monotypic). •Valid as Arnoldichthys Myers 1926 -- (Poll 1967:65 [ref. 3529], Géry 1977:50 [ref. 1597], Paugy 1984:162 [ref. 6183], Paugy 1990:80 [ref. 19787], Paugy in Lévêque et al. 1990:231 [ref. 21589], Poll & Gosse 1995:145 [ref. 24781], Zanata & Vari 2005;117 [ref. 28816], Mirande 2009:6 [ref. 30267] in Alestidae, Mirande 2010:474 [ref. 31006], Melo & Stiassny 2024:[21] [ref. 41653] in Lepidarchidae). Current status: Valid as Arnoldichthys Myers 1926. Lepidarchidae.