Piabina Reinhardt [J. T.] 1867:49 Fem. Piabina argentea Reinhardt 1867. Type by monotypy. •Synonym of Creagrutus Günther 1864 -- (Mahnert & Géry 1988:5 [ref. 6407]). •Valid as Piabina Reinhardt 1867 -- (Géry 1977:403 [ref. 1597], Vari & Harold 1998:256 [ref. 23845], Vari & Harold 2001:223 [ref. 25842], Almirón et al. 2001:38 [ref. 26609], Vari & Harold in Reis et al. 2003:154 [ref. 27061], Mirande 2009:8 [ref. 30267] in Characidae, Stevardiinae, Román-Valencia et al. 2010:87 [ref. 30781], Mirande 2010:533 [ref. 31006], Oliveira et al. 2011:16 [ref. 31685], Thomaz et al. 2015:8 [ref. 33893] in Stevardiinae, tribe Diapomini). Current status: Valid as Piabina Reinhardt 1867. Characidae: Stevardiinae.