pallidus, Acara Heckel [J. J.] 1840:347 [Annalen des Wiener Museums der Naturgeschichte v. 2; ref. 2064] Rio Negro of Rio Amazonas, South America. Holotype (unique): NMW 33678. •Valid as Aequidens pallidus (Heckel 1840) -- (Kullander in Reis et al. 2003:608 [ref. 27061], see DoNascimiento et al. 2017:[28] [ref. 35679]). Current status: Valid as Aequidens pallidus (Heckel 1840). Cichlidae: Cichlinae. Distribution: Amazon River basin, Brazil. Habitat: freshwater.