nattereri, Leporinus Steindachner [F.] 1876:114 [66], Pl. 12 (fig. 1) [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 74 (1. Abth.); ref. 4225] Rio Negro mouth; Tefé; Lago do Alexo, Brazil. Lectotype: NMW 68346. Paralectottypes: (several) MCZ 20384 (3) Teffe; NMW 68344-45, 48346b (3, 4, 1). On p. 66 of separate. Lectotype designated by Assega & Birindelli 2019:138 [ref. 36847]. •Valid as Leporinus nattereri Steindachner 1876 -- (Garavello & Britski in Reis et al. 2003:77 [ref. 27061], Sarmiento et al. 2014:183 [ref. 35004], DoNascimiento et al. 2017:40 [ref. 35633]). •Valid as Anostomoides nattereri (Steindachner 1876) -- (Assega & Birindelli 2019:136 [ref. 36847], Koerber et al. 2022:21 [ref. 39235]). •Valid as Insperanos nattereri (Steindachner 1876) -- (Sidlauskas et al. 2021:27 [ref. 38371]). Current status: Valid as Insperanos nattereri (Steindachner 1876). Anostomidae. Distribution: South America: Amazon and Orinoco river basins (Brazil, Colombia, Bolivia and Venezuela). Habitat: freshwater.