Brachychalcinus Boulenger [G. A.] 1892:11 Masc. Brachychalcinus retrospina Boulenger 1892. Type by monotypy. •Valid as Brachychalcinus Boulenger 1892 -- (Géry 1977:367 [ref. 1597], Reis 1989:58 [ref. 14219], Britski et al. 1999:56 [ref. 24147], Reis in Reis et al. 2003:209 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Stethaprioninae, Mirande 2010:500 [ref. 31006] in Characidae, Tetragonopterinae, Sarmiento et al. 2014:184 [ref. 35004], Garcia-Ayala et al. 2017:564 [ref. 35695], Garcia-Ayala & Benine 2020:1 [ref. 37401], Garcia-Ayala et al. 2024:1 [ref. 40855]). Current status: Valid as Brachychalcinus Boulenger 1892. Characidae: Stethaprioninae.