nattereri, Solea (Achiropsis) Steindachner [F.] 1876:158 [110] [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 74 (1. Abth.); ref. 4225] Rio Negro, Brazil. Holotype (unique): NMW 14001. On p. 110 of separate. •Valid as Achiropsis nattereri (Steindachner 1876) -- (Ortega & Vari 1986:21 [ref. 9708], Ramos in Reis et al. 2003:667 [ref. 27061], Barriga S. 2012:119 [ref. 35745]). •Valid as Apionichthys nattereri (Steindachner 1876) -- (Ramos 2003:106 [ref. 26762], Ramos in Menezes et al. 2003:107 [ref. 27192], Barriga Salazar 2014:119 [ref. 35745], Sarmiento et al. 2014:189 [ref. 35004], DoNascimiento et al. 2017:96 [ref. 35633], Meza-Vargas et al. 2021:28 [ref. 39298]). Current status: Valid as Apionichthys nattereri (Steindachner 1876). Achiridae. Distribution: South America: Amazon River basin (Brazil, Colombia, Bolivia, Ecuador and Peru). Habitat: freshwater.