angulatus, Chalceus Spix [J. B. von] & Agassiz [L.] 1829:67, Pl. 34 [Selecta genera et species piscium quos in itinere per Brasiliam; ref. 13] Rio Solimões, ilha do Prego, opposite to Alvarães Amazonas, Brazil, 3°10'37"S, 64°48.1'W [lower Amazon basin]. Neotype: MCP 29943. Name first published in Cuvier 1829 [ref. 995]. Neotype designated by Malabarba 2004:172 [ref. 28150]. See Malabarba 2004:172 [ref. 28150] for original locality information; syntypes (2) lost. •Valid as Triportheus angulatus (Spix & Agassiz 1829) -- (Ovchynnyk 1967:30 [ref. 37559], Ortega & Vari 1986:10 [ref. 9708], Taphorn 1992:349 [ref. 23654], Lasso et al. 2001:96 [ref. 25928], Malabarba & Lima in Reis et al. 2003:157 [ref. 27061], López et al. 2003:19 [ref. 27366], Malabarba 2004:171 [ref. 28150], Barriga Salazar 2014:108 [ref. 35745], Sarmiento et al. 2014:54, 185 [ref. 35004], Mariguela et al. 2016:132 [ref. 34141], DoNascimiento 2016:530 [ref. 34727], DoNascimiento et al. 2017:63 [ref. 35633], Careaga et al. 2020:76 [ref. 37774], Silvano et al. 2020:84 [ref. 38133], Meza-Vargas et al. 2021:20 [ref. 39298], Koerber et al. 2022:31 [ref. 39235], Malabarba 2024:435 [ref. 40817]). Current status: Valid as Triportheus angulatus (Spix & Agassiz 1829). Triportheidae: Triportheinae. Distribution: South America: Amazon River basin (Bolivia, Brazil, Colombia, Ecuador, Peru and Venezuela). Habitat: freshwater.