walteri, Brachyhypopomus (Odontohypopomus) Sullivan [J. P.], Zuanon [J.] & Cox Fernandes [C.] 2013:8, Figs. 1, 3-4, 8 (bottom 3) [ZooKeys No. 327; ref. 32879] Floating meadow alongside of lake in the Paraná do Paracuúba, near mouth of Rio Negro and entrance to Lago Janauari, approx. 15 km due south of Manaus, 03°12.6'S, 059°59.4'W, Amazonas, Brazil. Holotype: INPZ 8941. Paratypes: (20) ANSP, CUMV, INPA. Plus non-type specimens. Type catalog: Ferraris et al. 2017:[24] [ref. 35236]. •Valid as Brachyhypopomus walteri Sullivan, Zuanon & Cox Fernandes 2013 -- (Cox Fernandes et al. 2014:111 [ref. 33285] in subgenus Odontohypopomus, Crampton et al. 2016:54 [ref. 34832], Crampton et al. 2017:775 [ref. 35114], Ferraris et al. 2017:[24] [ref. 35236], Koerber et al. 2017:69 [ref. 35267], Ochoa et al. 2020:64 [ref. 37781], Meza-Vargas et al. 2021:21 [ref. 39298]). Current status: Valid as Brachyhypopomus walteri Sullivan, Zuanon & Cox Fernandes 2013. Hypopomidae. Distribution: South America: Amazon River Basin (Bolivia, Brazil, Peru, Ecuador, Guyana and Paraguay). Habitat: freshwater.