curvirostris, Sternarchus (Rhamphosternarchus) Boulenger [G. A.] 1887:282, Pl. 24 [Proceedings of the Zoological Society of London 1887 (pt 2) (art. 2) (for 1 Mar. 1887); ref. 532] Río Bobanaza basin, eastern Ecuador. Syntypes: ? BMNH 1880.12.8.90-91 (2). Type catalog: Ferraris et al. 2017:[13] [ref. 35236]. •Valid as Sternarchorhynchus curvirostris (Boulenger 1887) -- (Mago-Leccia 1994:37 [ref. 21320], Campos-da-Paz 1995:34 [ref. 22512], Britski et al. 1999:90 [ref. 24147], Campos-da-Paz 2000:528 [ref. 24452], Albert 2001:112 [ref. 25614], Albert in Reis et al. 2003:500 [ref. 27061], de Santana & Crampton 2006:58 [ref. 28619] as cf. curvirostris, de Santana & Nogueira 2006:85 [ref. 28638], de Santana & Vari 2010:000 [ref. 30785], Barriga Salazar 2014:116 [ref. 35745], Sarmiento et al. 2014:188 [ref. 35004], Ferraris et al. 2017:[13] [ref. 35236], see DoNascimiento et al. 2017:[15] [ref. 35679], Ochoa et al. 2020:63 [ref. 37781]). Current status: Valid as Sternarchorhynchus curvirostris (Boulenger 1887). Apteronotidae: Apteronotinae. Distribution: South America: Bobanaza River, upper Amazon River basin (Bolivia and Ecuador; perhaps northeastern Peru). Habitat: freshwater.