argenteus, Hemiodus Pellegrin [J.] 1909:344 [3] [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 14 (no. 7)[1908]; ref. 3423] Río Orinoco, Venezuela. Lectotype: MNHN 1887-0770. Paralectotypes: MNHN 1887-0769 (1). Type catalog: Bertin 1948:36-37 [ref. 19577]. On p. 3 of separate. Lectotype selected by Langeani in Reis et al. 2003:98 [ref. 27061]. Apparently published in 1909, in volume for 1908. •Valid as Hemiodopsis argenteus (Pellegrin 1909) -- (Taphorn 1992:458 [ref. 23654]). •Valid as Hemiodus argenteus Pellegrin 1909 -- (Langeani in Reis et al. 2003:98 [ref. 27061], Langeani & Moreira 2013:1267 [ref. 32535], Sarmiento et al. 2014:186 [ref. 35004], DoNascimiento et al. 2017:38 [ref. 35633], Nogueira et al. 2019:801 [ref. 36655], Nogueira et al. 2020:[5] [ref. 38050], Silva et al. 2020:178 [ref. 37389], Silvano et al. 2020:137 [ref. 38133], Meza-Vargas et al. 2021:14 [ref. 39298], Koerber et al. 2022:20 [ref. 39235], Taphorn et al. 2022:24 [ref. 41297]). Current status: Valid as Hemiodus argenteus Pellegrin 1909. Hemiodontidae. Distribution: South America: Orinoco and Amazon River basins (Brazil, Colombia, Guyana, Peru and Venezuela). Habitat: freshwater.