diamantinensis, Geophagus Mattos [J. L. O.], Costa [W. J. E. M.] & Santos [A. C. A.] 2015:213, Figs. 2-6 [Ichthyological Exploration of Freshwaters v. 26 (no. 3); ref. 34048] Andaraí municipality, Paraguaçu River, Chapada Diamantina region, Bahia, Brazil, 12°50'23"S, 41°19'23"W. Holotype: UFRJ 8833. Paratypes: UFRJ. Plus additional non-type material. •Valid as 'Geophagus' diamantinensis Mattos, Costa & Santos 2015 -- (Argolo et al. 2020:4 [ref. 37561]). •Valid as Geophagus diamantinensis Mattos, Costa & Santos 2015 -- (Mattos & Costa 2018:336 [ref. 36009], Silva et al. 2020:15 [ref. 37809], Vieira-Guimarães et al. 2024:53 [ref. 41258]). Current status: Valid as Geophagus diamantinensis Mattos, Costa & Santos 2015. Cichlidae: Cichlinae. Distribution: South America: Paraguaçu River basin, Bahia State (Brazil). Habitat: freshwater.