oliveirai, Hisonotus Roxo [F. F.], Zawadzki [C. H.] & Troy [W. P.] 2014:59, Figs. 2D, 4E, 5E. [ZooKeys No. 395; ref. 33252] Paraná State, boundry between municipalities of Cambira and Apucarana, ribeirão Cambira, affluent of rio Ivaí, upper rio Pananá basin, 23°38'54"S, 51°29"58"W, Brazil. Holotype: MZUSP 115061. Paratypes: DZSJRP, LPB, MCP, NUP, ZMA. Type catalog: Andrade et al. 2017:443 [ref. 35588], Oliveira et al. 2022:15 [ref. 39255]. •Valid as Hisonotus oliveirai Roxo, Zawadzki & Troy 2014 -- (Silva et al. 2014:119 [ref. 33533], Roxo et al. 2015:138 [ref. 33763]). •Valid as Curculionichthys oliveirai (Roxo, Zawadzki & Troy 2014) -- (Roxo et al. 2015:126 [ref. 34024], Silva et al. 2016:290 [ref. 34828], Roxo et al. 2017:268 [ref. 35655], Calegari et al. 2018:669 [ref. 36345], Reis et al. 2020:469 [ref. 38364]). Current status: Valid as Curculionichthys oliveirai (Roxo, Zawadzki & Troy 2014). Loricariidae: Hypoptopomatinae. Distribution: South America: upper Paraná river basin (Brazil). Habitat: freshwater.