carreiro, Hisonotus Carvalho [T. P.] & Reis [R. E.] 2011:27, Figs. 4d, 8d, 28, 29 [Neotropical Ichthyology v. 9 (no. 1); ref. 31240] Serafina Corrêa, rio Carreiro, downstream of Carreiro bathing spot, 28°42'10"S, 51°50'57"W, Rio Grande do Sul, Brazil. Holotype: MCP 44515. Paratypes: ANSP 188702 (3); MCN 16361 (3); MCP 40495 (4, 2 c&s), 40943 (3), 41548 (1); MZUSP 104944 (3); UFRGS 6961 (7). Name is a noun in apposition. •Valid as Hisonotus carreiro Carvalho & Reis 2011 -- (Roxo et al. 2015:137 [ref. 33763], Zawadzki et al. 2016:380 [ref. 34367], Roxo et al. 2016:235 [ref. 34426], Bertaco et al. 2016:418 [ref. 34561], Calegari et al. 2017:243 [ref. 35203], Roxo et al. 2018:[12] [ref. 35900]). Current status: Valid as Hisonotus carreiro Carvalho & Reis 2011. Loricariidae: Hypoptopomatinae. Distribution: Rio Carreiro drainage, tributary of the rio Taquari, rio Jacuí basin, Laguna dos Patos system, Brazil. Habitat: freshwater.