santosi, Geophagus Mattos [J. L. O.] & Costa [W. J. E. M.] 2018:333, Figs. 5B, 6 [Zoosystematics and Evolution v. 94 (no. 2); ref. 36009] Rio Mariana upstream of Cachoeira da Pancada, Área de Proteção Ambiental Michelin, Ituberá municipality, Bahia State Brazil, 13°46'32"S, 39°09'29"W, elevation about 15 meters. Holotype: UFRJ 11765. Paratypes: CICCAA, UFRJ. •Valid as 'Geophagus' santosi Mattos & Costa 2018 -- (Argolo et al. 2020:4 [ref. 37561]). •Valid as Geophagus santosi Mattos & Costa 2018 -- (Silva et al. 2020:15 [ref. 37809], Vieira-Guimarães et al. 2024:53 [ref. 41258]). Current status: Valid as Geophagus santosi Mattos & Costa 2018. Cichlidae: Cichlinae. Distribution: South America: Rio Mariana drainage, Bahia State (Brazil). Habitat: freshwater.