Prorivulus Costa [W. J. E. M.], Lima [S. M. Q.] & Suzart [R. dos R.] in Costa 2004:3 Masc. Prorivulus auriferus Costa, Lima & Suzart 2004. Type by original designation (also monotypic). Huber 2012 [ref. 32947] regards some taxa as synonyms of Rivulus based on a reappraisal of Rivulus with a morphological and molecular analysis. •Synonym of Rivulus Poey 1860, but a valid subgenus as described -- (Huber 2012:17 [ref. 32947]). •Valid as Prorivulus Costa, Lima & Suzart 2004 -- (Huber 2005:14 [ref. 28394], Loureiro et al. 2018:6 [ref. 36240]). Current status: Valid as Prorivulus Costa, Lima & Suzart 2004. Rivulidae: Rivulinae.