vittatus, Otocinclus Regan [C. T.] 1904:267, Pl. 15 (fig. 3) [Transactions of the Zoological Society of London v. 17 (pt 3, no. 1); ref. 3621] Descalvados, Rio Paraguay system, Mato Grosso State, Brazil. Lectotype: BMNH 1895.5.17.83. Paralectotypes: BMNH 1895.5.17.84-87 (4), NMW 54989 (1). Lectotype selected by Schaefer 1997:57 [ref. 23213]. •Valid as Otocinclus vittatus Regan 1904 -- (Isbrücker 1980:85 [ref. 2303], Burgess 1989:439 [ref. 12860], Schaefer 1991:6 [ref. 18926], Aquino 1994:218 [ref. 22311], Schaefer 1997:55 [ref. 23213], Britski et al. 1999:133 [ref. 24147], Isbrücker 2001:30 [ref. 25653], Britto & Moreira 2002:1067 [ref. 26512], Isbrücker 2002:24 [ref. 27178], Schaefer in Reis et al. 2003:325 [ref. 27061], López et al. 2003:44 [ref. 27366], Menni 2004:79 [ref. 28131], Chiachio et al. 2008:610 [ref. 30127], Sarmiento et al. 2014:191 [ref. 35004], Mirande & Koerber 2015:41 [ref. 35117], Koerber et al. 2017:59 [ref. 35267], Roxo et al. 2017:351 [ref. 35310], DoNascimiento et al. 2017:76 [ref. 35633], Urbano-Bonilla et al. 2018:75 [ref. 35773], Delapieve et al. 2018:23 [ref. 35713], Reis et al. 2020:466 [ref. 38364], Meza-Vargas et al. 2021:26 [ref. 39298]). Current status: Valid as Otocinclus vittatus Regan 1904. Loricariidae: Hypoptopomatinae. Distribution: South America: Amazon, Orinoco, Paraná/Paraguay, Xingu and Tocantins River basins (Argentina, Bolivia, Brazil, Colombia, Paraguay, Peru and Venezuela). Habitat: freshwater.