goeldii, Hemiodus Steindachner [F.] 1908:61 [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Wien, Mathematisch-Naturwissenschaftliche Klasse v. 45 (no. 6) (for 13 Feb. 1908); ref. 13415] Likely Rio Xingu, Brazil. Holotype (unique): NMW 68642. •Valid as Hemiodus goeldii Steindachner 1908 -- (Langeani 1999:721 [ref. 23914], Langeani in Reis et al. 2003:98 [ref. 27061], Langeani & Moreira 2013:1265 [ref. 32535], DoNascimiento et al. 2017:[2] [ref. 35679], Silva et al. 2020:178 [ref. 37389], Nogueira et al. 2020:[5] [ref. 38050]). Current status: Valid as Hemiodus goeldii Steindachner 1908. Hemiodontidae. Distribution: South America: Amapá River basin (Pará, Brazil). Habitat: freshwater.