Nematocharax Weitzman [S. H.], Menezes [N. A.] & Britski [H. A.] 1986:335 Masc. Nematocharax venustus Weitzman, Menezes & Britski 1986. Type by original designation (also monotypic). •Valid as Nematocharax Weitzman, Menezes & Britski 1986 -- (Malabarba in Reis et al. 2003:151 [ref. 27061], Mirande 2009:7 [ref. 30267] in Characidae, Rhoadsiinae with question, Mirande 2010:499 [ref. 31006], Thomaz et al. 2010:1350 [ref. 31210], Negreiros de Bragança et al. 2013:3 [ref. 32664], Menezes et al. 2015:453 [ref. 33689], Barreto et al. 2018:1151 [ref. 36378], Melo et al. 2024:22 [ref. 41541] in Stichonodontinae). Current status: Valid as Nematocharax Weitzman, Menezes & Britski 1986. Acestrorhamphidae: Stichonodontinae.