mariae, Otocinclus Fowler [H. W.] 1940:83, Figs. 41-43 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 92; ref. 1436] Boca Chapare, Río Chimore, tributary to Río Ichilo, about 15°58'S, 64°42'W, Río Mamoré system, Bolivia. Holotype (unique): ANSP 69068. Type catalog: Böhlke 1984:123 [ref. 13621], Ferraris 2007:275 [ref. 29155]. •Valid as Otocinclus mariae Fowler 1940 -- (Isbrücker 1980:84 [ref. 2303], Burgess 1989:439 [ref. 12860], Schaefer 1997:66 [ref. 23213], Le Bail et al. 2000:264 [ref. 24549] as cf. mariae, 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], Ferraris 2007:275 [ref. 29155], Chiachio et al. 2008:610 [ref. 30127] as cf. mariae, Lehmann A. et al. 2010:636 [ref. 31083], Sarmiento et al. 2014:191 [ref. 35004], Ribeiro & Lehmann A. 2016:244 [ref. 34636], Delapieve et al. 2018:23 [ref. 35713]). Current status: Valid as Otocinclus mariae Fowler 1940. Loricariidae: Hypoptopomatinae. Distribution: Upper Madeira and lower Amazon River basins, Bolivia. Habitat: freshwater.