tucupi, Hemiodus Silva [I. da S.], Nogueira [A. F.], Netto-Ferreira [A. L.], Akama [A.] & Dutra [G. M.] 2020:173, Figs. 1-2 [Zootaxa 4751 (no. 1); ref. 37389] Bacajá at rapids of the Igarapé Bacajaí, Rio Xingu basin, Pará, Brazil, 3°54'37.91"S, 51°44'32.78"W. Holotype: MPEG 36362. Paratypes: ANSP, DZSJRP, INPA, LIA, MPEG, MZUSP, UFRGS. Plus a non-type specimen. •Valid as Hemiodus tucupi Silva, Nogueira, Netto-Ferreira, Akama & Dutra 2020 -- (Nogueira et al. 2020:[5] [ref. 38050]). Current status: Valid as Hemiodus tucupi Silva, Nogueira, Netto-Ferreira, Akama & Dutra 2020. Hemiodontidae. Distribution: South America: lower Rio Xingu (Pará, Brazil). Habitat: freshwater.