nicolasi, Hyphessobrycon Miquelarena [A. M.] & López [H. L.] 2010:1, Figs. 1-3 [Neotropical Ichthyology v. 8 (no. 1); ref. 30749] El Pelado stream, 32°19'S, 58°14'W, Colón Department,Entre Rios Province, Argentina. Holotype: CFA-IC 11808 [ex ILPLA 1808]. Paratypes: CFA-IC 11809 [ex ILPLA 1809] (20), 11811 [ex ILPLA 1811] (8), 11812 ex [ILPLA 1812] (7 c&s); ILPLA 1810 (6 c&s); MLP 9746 (9). Type catalog: Miquelarena & Nadalin 2014:8 [ref. 33466], Bogan et al. 2019:13 [ref. 37088]. •Valid as Hyphessobrycon nicolasi Miquelarena & López 2010 -- (Koerber 2011:3 [ref. 31122], Koerber 2014:5 [ref. 33621], Mirande & Koerber 2015:26 [ref. 35117]). Current status: Valid as Hyphessobrycon nicolasi Miquelarena & López 2010. Acestrorhamphidae: Hyphessobryconinae. Distribution: South America: Uruguay River basin (Argentina). Habitat: freshwater.