notata, Bivibranchia Vari [R. P.] & Goulding [M.] 1985:1055, Fig. 1 [Proceedings of the Biological Society of Washington v. 98 (no. 4); ref. 5200] Beach at Alter do Chão, Rio Tapajós, about 2°31'S, 54°57'W, Pará, Brazil. Holotype: MZUSP 28657. Paratypes: MZUSP 23712 (3); USNM 268049 (1), 268562 (3). Type catalog: Vari & Howe 1991:8 [ref. 19022], Oyakawa 1996:452 [ref. 23140]. •Valid as Bivibranchia notata Vari & Goulding 1985 -- (Langeani in Reis et al. 2003:97 [ref. 27061], Nogueira et al. 2021:7 [ref. 38941]). Current status: Valid as Bivibranchia notata Vari & Goulding 1985. Hemiodontidae. Distribution: South America: Tapajós and Tocantins River basins (Brazil). Habitat: freshwater.