luteofrenatus, Hisonotus Britski [H. A.] & Garavello [J. C.] 2007:416, Fig. 2 [Brazilian Journal of Biology v. 67 (no. 3); ref. 29429] Sinop, Riacho Loanda, tributary of Rio Teles Pires, about 54 kilometers north of Sinop on BR-163 road to Santarém 11°25'S, 55°21'W, Mato Grosso State, Brazil. Holotype: MZUSP 62593. Paratypes: ANSP 180649 [ex MZUSP 87144] (2); MHNG 2664.080 (3); MZUSP 42458 (6), 62590 (2), 62594 (8, 1 c&s), 87144 (13, no 11, 1 c&s), •Valid as Hisonotus luteofrenatus Britski & Garavello 2007 -- (Garvalho & Reis 2011:44 [ref. 31240], Carvalho & Datovo 2012:266 [ref. 32054], Martins & Langeani 2012:30 [ref. 32060], Roxo et al. 2014:57 [ref. 33252], Roxo et al. 2015:138 [ref. 33763]). •Valid as Curculionichthys luteofrenatus (Britski & Garavello 2007) -- (Roxo et al. 2015:127 [ref. 34024], Silva et al. 2016:290 [ref. 34828], Roxo et al. 2017:268 [ref. 35655], Calegari et al. 2018:669 [ref. 36345]). Current status: Valid as Curculionichthys luteofrenatus (Britski & Garavello 2007). Loricariidae: Hypoptopomatinae. Distribution: Upper Tapajós River basin, Brazil. Habitat: freshwater.