depressinotus, Microlepidogaster Miranda Ribeiro [A. de] 1918:633 [5] [Revista do Museu Paulista v. 10; ref. 3725] Piracicaba, São Paulo State, Brazil. Holotype (unique): MZUSP [ex DZSASP] 2156. Type catalog: Britski 1969:208 [ref. 12401], Ferraris 2007:248 [ref. 29155]. On p. 5 of separate. •Valid as Otocinclus depressinotus (Miranda Ribeiro 1918) -- (Isbrücker 1980:82 [ref. 2303]). •Valid as Microlepidogaster depressinotus Miranda Ribeiro 1918 -- (Burgess 1989:439 [ref. 12860]). •Valid as Hisonotus depressinotus (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 & Azpelicueta 2006:92 [ref. 28713], Azpelicueta & Almirón 2007:596 [ref. 29353], Britski & Garavello 2007:414 [ref. 29429], Ferraris 2007:248 [ref. 29155], Calegari et al. 2017:243 [ref. 35203]). •Synonym of Hisonotus paulinus (Regan 1908) -- (H. A. Britski pers. comm.). Current status: Synonym of Hisonotus paulinus (Regan 1908). Loricariidae: Hypoptopomatinae. Habitat: freshwater.