Macrotocinclus Isbrücker [I. J. H.] & Seidel [I.] in Isbrücker et al. 2001:20 Masc. Otocinclus affinis Steindachner 1877. Type by original designation. •Valid as Macrotocinclus Isbrücker & Seidel 2001 -- (Isbrücker 2002:23 [ref. 27178], Ferraris 2007:271 [ref. 29155]). •Synonym of Otocinclus Cope 1871 -- (Schaefer in Reis et al. 2003:324 [ref. 27061], Delapieve et al. 2018:23 [ref. 35713]). Current status: Synonym of Otocinclus Cope 1871. Loricariidae: Hypoptopomatinae.