Hexanematichthys Bleeker [P.] 1858:2 Masc. Bagrus sondaicus Valenciennes 1840. Type by monotypy. Also in Bleeker 1858:24 et seq., 61, 126 [ref. 365]; earliest publication in 1858 not established. See van Oijen et al. 2009:110 [ref. 30423]. •Synonym of Arius Valenciennes 1840 -- (Roberts 1989:110 [ref. 6439]). •Synonym of Sciades (Müller & Troschel 1849) -- (Marceniuk & Menezes 2007:103 [ref. 29031] with wrong type species). •Valid as Hexanematichthys Bleeker 1858 -- (Marceniuk & Ferraris in Reis et al. 2003:451 [ref. 27061], Kailola 2004:137 [ref. 28108], Hoese & Gates 2006:353 [ref. 28997], Ferraris 2007:45 [ref. 29155], Kottelat 2013:248 [ref. 32989], Marceniuk et al. 2023:33 [ref. 40422]). Current status: Valid as Hexanematichthys Bleeker 1858. Ariidae: Ariinae.