microstomus, Sternopygus Reinhardt [J. T.] 1852:147 [Videnskabelige Meddelelser fra den Naturhistoriske Forening i Kjøbenhavn, Aaret 1852; ref. 18619] Lagoa Santa, Brazil. Syntypes: BMNH 1868.7.8.2-3 (2); ZMB 9183 (1); ZMUC 21 (1), 23-26 (4). Type catalog: Nielsen 1974:48 [ref. 9588], Ferraris et al. 2017:[31] [ref. 35236]. The specific name is an undeclinable noun. •Valid as Eigenmannia microstomus (Reinhardt 1852) -- (Mago-Leccia 1994:20 [ref. 21320], Albert in Reis et al. 2003:488 [ref. 27061], Peixoto et al. 2015:384, 398 [ref. 33968], Peixoto & Wosiacki 2016:263 [ref. 34493], Campos-da-Paz & Queiroz 2017:82 [ref. 35026] as microstoma, Dutra et al. 2017:90 [ref. 35186] as microstoma, Ferraris et al. 2017:[31] [ref. 35236] as microstoma, Dutra et al. 2018:138 [ref. 35941] as microstoma, Peixoto & Ohara 2019:26 [ref. 36930] as microstoma). Current status: Valid as Eigenmannia microstomus (Reinhardt 1852). Sternopygidae: Eigenmanniinae. Distribution: South America: São Francisco River basin, Brazil. Habitat: freshwater.