caeruleus, Hypsolebias Costa [W. J. E. M.] 2013:142, Figs. 1-2 [Ichthyological Exploration of Freshwaters v. 24 (no. 2); ref. 33008] Estado da Bahia, Município de Itaguacu de Bahia, seasonal pool in the floodplains of the lower Verde River, a right tributary of the middle São Francisco River, about 30 km N of the town of Itaguacu, 10°43'20"S, 42°20'30"W, Brazil, elevation 414 meters. Holotype: UFRI 6864. Paratypes: UFRJ 6855 (3), 6854 (3), 6827 (2). •Valid as Hypsolebias caeruleus Costa 2013 -- (Nielsen et al. 2014:132 [ref. 33451], Silva et al. 2020:14 [ref. 37809]). Current status: Valid as Hypsolebias caeruleus Costa 2013. Rivulidae: Cynolebiinae. Distribution: South America: Rio Verde (Bahia State, Brazil). Habitat: freshwater.