Ectrepopterus (subgenus of Megalamphodus) Fowler [H. W.] 1943:313 Masc. Megalamphodus uruguayensis Fowler 1943. Type by original designation (also monotypic). •Synonym of Megalamphodus Eigenmann 1915 -- (Taphorn 1992:251 [ref. 23654]). •Synonym of Hyphessobrycon Durbin 1908 -- (see Malabarba 1998:231 [ref. 23844], Lima & Malabarba in Reis et al. 2003:134 [ref. 27061]). •Valid as Ectrepopterus Fowler 1943 -- (Malabarba et al. 2012:47, 49 [ref. 31810], Melo et al. 2024:22 [ref. 41541] in Stethaprioninae). Current status: Valid as Ectrepopterus Fowler 1943. Acestrorhamphidae: Stethaprioninae.