bilineatus, Microsternarchus Fernández-Yépez [A.] 1968:[3], Pl. 2 (unnumb.) [Evencias No. 20; ref. 7318] Río San Bartolo, tributary of River Guariquito, southwest of Calabozo, Venezuela. Neotype: INHS 111262. Original types MACLPI 65252 (27, lost). Type catalog: Ferraris et al. 2017:[25] [ref. 35236]. On third unnumbered page. Neotype designated by Cox Fernandes & Williston 2017:105 [ref. 35647]. •Valid as Microsternarchus bilineatus Fernández-Yépez 1968 -- (Mago-Leccia 1994:52 [ref. 21320], Albert & Campos-da-Paz 1998:426 [ref. 23853], Albert & Crampton in Reis et al. 2003:495 [ref. 27061], de Santana & Crampton 2011:1155 [ref. 31643], Cox Fernandes et al. 2014:110 [ref. 33285], Cox Fernandes et al. 2015:213 [ref. 33927], Melo et al. 2016:134 [ref. 34701], Ferraris et al. 2017:[25] [ref. 35236], Cox Fernandes & Williston 2017:105 [ref. 35647], DoNascimiento et al. 2017:66 [ref. 35633], Ochoa et al. 2020:64 [ref. 37781], Meza-Vargas et al. 2021:21 [ref. 39298], Taphorn et al. 2022:40 [ref. 41297], Sousa et al. 2024:516 [ref. 41134]). Current status: Valid as Microsternarchus bilineatus Fernández-Yépez 1968. Hypopomidae. Distribution: South America: upper Orinoco River and Rio Negro basins (Guyana and Venezuela). Habitat: freshwater.