macrospilus, Otocinclus Eigenmann [C. H.] & Allen [W. R.] 1942:201, Pl. 13 (fig. 1) [Fishes of western South America; ref. 1246] Río Morona, upper Amazon River basin, Dpto Loreto, Peru. Holotype: CAS 77335 [ex IU 15606]. Paratypes: CAS 77336 [ex IU 15606] (11). Type catalog: Ferraris 2007:275 [ref. 29155]. •Valid as Otocinclus macrospilus Eigenmann & Allen 1942 -- (Isbrücker 1980:84 [ref. 2303], Ortega & Vari 1986:17 [ref. 9708], Burgess 1989:438 [ref. 12860], Schaefer 1997:67 [ref. 23213], 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], Lehmann A. et al. 2010:636 [ref. 31083], Barriga Salazar 2014:112 [ref. 35745], Ribeiro & Lehmann A. 2016:244 [ref. 34636], DoNascimiento et al. 2017:76 [ref. 35633], Delapieve et al. 2018:23 [ref. 35713], Meza-Vargas et al. 2021:26 [ref. 39298]). Current status: Valid as Otocinclus macrospilus Eigenmann & Allen 1942. Loricariidae: Hypoptopomatinae. Distribution: South America: Amazon River basin (Colombia, Ecuador and Peru). Habitat: freshwater.