bourguyi, Microlepidogaster Miranda Ribeiro [A. de] 1911:90 [Arquivos do Museu Nacional de Rio de Janeiro v. 16; ref. 3716] Brazil. Syntypes: possibly MNRJ 1036 (12). Type catalog: Ferraris 2007:300 [ref. 29155]. Original as Microlepidogaster (?) lophophanes. •Valid as Otocinclus bourguyi (Miranda Ribeiro 1911) -- (Isbrücker 1980:82 [ref. 2303]). •Valid as Microlepidogaster bourguyi Miranda Ribeiro 1911 -- (Burgess 1989:439 [ref. 12860]). •Valid as Hisonotus bourguyi (Miranda Ribeiro 1911) -- (Isbrücker 2001:28, 30 [ref. 25653], Isbrücker 2002:17 [ref. 27178]). •Species inquirenda in Loricariidae, subfamily Hypoptopomatinae -- (Schaefer in Reis et al. 2003:327 [ref. 27061]). •Species inquirenda in Loricariidae -- (Ferraris 2007:300 [ref. 29155]). Loricariidae: Hypoptopomatinae. Distribution: Brazil. Habitat: freshwater.