uruguayensis, Megalamphodus Fowler [H. W.] 1943:313, Figs. 2-3 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 95; ref. 1444] Uruguay [no further data]. Holotype (unique): ANSP 70331. Type catalog: Böhlke 1984:55 [ref. 13621]. •Valid as Hyphessobrycon uruguayensis (Fowler 1943) -- (Weitzman & Palmer 1997:234 [ref. 22743], Lima & Malabarba in Reis et al. 2003:141 [ref. 27061], Menni 2004:77 [ref. 28131], Bertaco et al. 2007:248 [ref. 29277]). •Valid as Ectrepopterus uruguayensis (Fowler 1943) -- (Malabarba et al. 2012:50 [ref. 31810], Koerber 2014:5 [ref. 33621], Litz & Koerber 2014:15 [ref. 33622], Mirande & Koerber 2015:25 [ref. 35117], Nión et al. 2016:30 [ref. 35565], García et al. 2017:3 [ref. 35261], Lanés et al. 2023:36 [ref. 40243], Loureiro et al. 2023:68 [ref. 40506]). Current status: Valid as Ectrepopterus uruguayensis (Fowler 1943). Acestrorhamphidae: Stethaprioninae. Distribution: South America: Uruguay and La Plata River basins (Argentina, Uruguay and Brazil). Habitat: freshwater.