depressicauda, Otocinclus Miranda Ribeiro [A. de] 1918:635 [7] [Revista do Museu Paulista v. 10; ref. 3725] Sorocaba, Rio Paraná, São Paulo State, Brazil. Lectotype: MZUSP [ex DZSASP] 1004. Paralectotypes: (10) MNRJ 1931 (4), MZUSP [ex DZSASP] 5381-5384 (4). Type catalog: Miranda Ribeiro 1955:400 [ref. 12732], Britski 1969:208-209 [ref. 12401], Ferraris 2007:248 [ref. 29155] On p. 7 of separate. Lectotype selected by Britski 1969:208 [ref. 12401]. •Valid as Otocinclus depressicauda Miranda Ribeiro 1918 -- (Isbrücker 1980:82 [ref. 2303], Burgess 1989:438 [ref. 12860]). •In Microlepidogaster -- (Schaefer 1997:8 [ref. 23213]). •Valid as Hisonotus depressicauda (Miranda Ribeiro 1918) -- (Isbrücker 2001:28, 30 [ref. 25653], Aquino et al. 2001:9 [ref. 25673], Isbrücker 2002:17 [ref. 27178], Britski & Garavello 2003:593 [ref. 27131], Schaefer in Reis et al. 2003:322 [ref. 27061], Almirón et al. 2006:92 [ref. 28713], Azpelicueta & Almirón 2007:596 [ref. 29353], Britski & Garavello 2007:414 [ref. 29429], Ferraris 2007:248 [ref. 29155], Roxo et al. 2015:137 [ref. 33763], Zawadzki et al. 2016:380 [ref. 34367], Roxo et al. 2016:235 [ref. 34426], Calegari et al. 2017:243 [ref. 35203], Roxo et al. 2018:[12] [ref. 35900], Dias et al. 2018:583 [ref. 36235], Azevedo-Santos et al. 2020:5 [ref. 39606], Reis et al. 2020:469 [ref. 38364] as cf. depressicauda). Current status: Valid as Hisonotus depressicauda (Miranda Ribeiro 1918). Loricariidae: Hypoptopomatinae. Distribution: South America: Tietê River basin, upper Paraná River basin (Brazil). Habitat: freshwater.