montanus, Sternarchorhynchus de Santana [C. D.] & Vari [R. P.] 2010:324, Fig. 59 [Zoological Journal of the Linnean Society v. 159 (no. 1); ref. 30785] Río Marañon, pongo above Borja, 35.5 kilometers northeast of Juan Velasco, Santa Maria de Nieva (4°27'36"S, 77°34'53"W), Amazonas, Peru. Holotype: MUSM 31312. Paratypes: UF uncat. (2). Plus non-type specimens. Type catalog: Ferraris et al. 2017:[14] [ref. 35236]. •Valid as Sternarchorhynchus montanus de Santana & Vari 2010 -- (Barriga Salazar 2014:116 [ref. 35745], Ferraris et al. 2017:[14] [ref. 35236], Meza-Vargas et al. 2021:21 [ref. 39298]). Current status: Valid as Sternarchorhynchus montanus de Santana & Vari 2010. Apteronotidae: Apteronotinae. Distribution: South America: Amazon basin (Ecuador and Peru). Habitat: freshwater.