dissimilis, Adenops Carvalho [J. de P.] 1956:93, Pl. 1 (fig. 4) [Boletim do Instituto Oceanografico, São Paulo v. 7 (nos 1-2); ref. 12055] Cananéia, south coast of São Paulo State, Brazil. Holotype: MZUSP 9401 [ex IO 303]. Paratypes: MZUSP 9402-05 [ex IO] (4). Type catalog: Menezes 1974:216 [ref. 20795]. •Valid as Adenops dissimilis Carvalho 1956 -- (Camargo & Isaac 2001:141 [ref. 27639]). •Valid as Membras dissimilis (Carvalho 1956) -- (Menezes et al. in Menezes et al. 2003:66 [ref. 27192], Chernoff et al. 2020:194 [ref. 37775], Carvalho-Filho 2023:94 [ref. 40480]). Current status: Valid as Membras dissimilis (Carvalho 1956). Atherinopsidae: Menidiinae. Distribution: Southwestern Atlantic: Brazil. Habitat: marine.