lineatus, Rhamphichthys Castelnau [F. L.] 1855:87, Pl. 47 (fig. 1) [Animaux nouveaux or rares v. 2; ref. 766] Lake of Río Ucayali, Peru. Holotype (unique): MNHN 0000-3982. Type catalog: Ferraris et al. 2017:[28] [ref. 35236]. •Valid as Rhamphichthys lineatus Castelnau 1855 -- (Mago-Leccia 1994:42 [ref. 21320], Chang & Ortega 1995:3 [ref. 24302], Triques 1999:1 [ref. 24281], Albert 2001:124 [ref. 25614], Ferraris in Reis et al. 2003:493 [ref. 27061], de Santana & Crampton 2011:1155 [ref. 31643], Barriga Salazar 2014:116 [ref. 35745] as cf. lineatus, Carvalho & Albert 2015:40 [ref. 33681], Ferraris et al. 2017:[28] [ref. 35236], Meza-Vargas et al. 2021:21 [ref. 39298], Carvalho & Albert 2023:39 [ref. 40654]). Current status: Valid as Rhamphichthys lineatus Castelnau 1855. Rhamphichthyidae. Distribution: South America: Ucayali, Solimões, and Amazon River drainages, western Amazon basin, Peru and Brazil. Habitat: freshwater.