hamiltoni, Brachyhypopomus Crampton [W. G. R.], de Santana [C. D.], Waddell [J. C.] & Lovejoy [N. R.] 2017:728, Figs. 1g, 28 [Neotropical Ichthyology v. 14 (no. 4); ref. 35114] Mamirauá Reserve (Reserva de Desenvolvimento Sustentável), municipality Alvarães, Ressaca da Vila Alencar, rio Solimões-Japurá floodplain, Amazonas drainage, Amazonas, Brazil, 03°07'41"S, 64°48'04"W. Holotype: MCP 45482. Paratypes: MCP, MPEG. Plus non-type material. Type catalog: Ferraris et al. 2017:[23] [ref. 35236]. •Valid as Brachyhypopomus hamiltoni Crampton, de Santana, Waddell & Lovejoy 2017 -- (Ferraris et al. 2017:[23] [ref. 35236], Meza-Vargas et al. 2021:21 [ref. 39298]). Current status: Valid as Brachyhypopomus hamiltoni Crampton, de Santana, Waddell & Lovejoy 2017. Hypopomidae. Distribution: South America: Amazon River basin (Brazil, Ecuador and Peru). Habitat: freshwater.