insperatus, Hisonotus Britski [H. A.] & Garavello [J. C.] 2003:588, Fig. 1 [Copeia 2003 (no. 3); ref. 27131] Rio Capivara, Rio Tietê drainage, Botucatu, São Paulo State, Brazil. Holotype: MZUSP 78957. Paratypes: ANSP 178701 (3); LIRP 2262-63 (1, 8), 2265-66 (37, 5); MNRJ 23840 (3); MZUSP 22826 (1), 24719 (3), 24832 (1), 24980 (1), 47969 (1), 78958-59 (5, 4), 78960 (35, 5 c&s), 78961-63 (19, 1, 3), 78964-68 (8, 13, 7, 2, 5). Type catalog: Ferraris 2007:248 [ref. 29155]. •Valid as Hisonotus insperatus Britski & Garavello 2003 -- (Almirón & Azpelicueta 2006:92 [ref. 28713], Azpelicueta & Almirón 2007:596 [ref. 29353], Britski & Garavello 2007:413 [ref. 29429], Ferraris 2007:248 [ref. 29155], Chiachio et al. 2008:610 [ref. 30127], Garvalho & Reis 2011:44 [ref. 31240], Carvalho & Datovo 2012: 268 [ref. 32054], Martins & Langeani 2012:30 [ref. 32060], Roxo et al. 2014:57 [ref. 33252], Silva et al.2014:119 [ref. 33533], Roxo et al. 2015:138 [ref. 33763]). •Valid as Curculionichthys insperatus (Britski & Garavello 2003) -- (Roxo et al. 2015:127 [ref. 34024], Silva et al. 2016:289 [ref. 34828], Roxo et al. 2017:267 [ref. 35139], Roxo et al. 2017:351 [ref. 35310], Roxo et al. 2017:268 [ref. 35655], Calegari et al. 2018:669 [ref. 36345], Gamarra et al. 2019:5 [ref. 36703], Reis et al. 2020:469 [ref. 38364]). Current status: Valid as Curculionichthys insperatus (Britski & Garavello 2003). Loricariidae: Hypoptopomatinae. Distribution: South America: upper Paraná River basin (Brazil). Habitat: freshwater.