nudiorbitatus, Hypsolebias Costa [W. J. E. M.] 2011:222, Figs. 1-2, 3a, 4a [Ichthyological Exploration of Freshwaters v. 22 (no. 3) [for Sept.]; ref. 31654] Seasonal swamp adjacent to das Jacas Creek, upper Itapicuru River basin, near road BA-381, about 2.5 km from Filadélfia village, 11°22'51"S, 40°00'51"W, Município de Filadélfia, Bahia, Brazil, elevation 415 meters. Holotype: UFRJ 6837. Paratypes: UFRJ 6838 (3, c&s), 6839 (1). •Valid as Hypsolebias nudiorbitatus Costa 2011 -- (Costa et al. 2012:73 [ref. 31845], Costa et al. 2013:1 [ref. 32952], Britzke et al. 2016:134 [ref. 34461], Silva et al. 2020:14 [ref. 37809], Abrantes et al. 2023:549 [ref. 40706]). Current status: Valid as Hypsolebias nudiorbitatus Costa 2011. Rivulidae: Cynolebiinae. Distribution: South America: floodplains of the upper Itapicuru River drainage (Bahia State, Brazil). Habitat: freshwater.