scaius, Curculionichthys Calegari [B. B.], Gamarra [S. P.] & Reis [R. E.] 2018:663, Figs. 1-2 [Copeia v. 106 (no. 4); ref. 36345] Creek on road to Lontra, tributary to the Aripuanã River drainage, Madeira River basin, Aripuanã, Mato Grosso, Brazil, 10°19'33"S, 59°33'08"W. Holotype: MCP 53800. Paratypes: AMNH, MCP, MZUSP, NUP. Type catalog: Oliveira et al. 2022:13 [ref. 39255]. •Valid as Curculionichthys scaius Calegari, Gamarra & Reis 2018 -- (Gamarra et al. 2019:8 [ref. 36703]). Current status: Valid as Curculionichthys scaius Calegari, Gamarra & Reis 2018. Loricariidae: Hypoptopomatinae. Distribution: South America: upper Madeira River basin (Mato Grosso, Brazil). Habitat: freshwater.