gracilis, Spectrolebias Costa [W. J. E. M.] & Amorim [P. F.] 2018:363, Figs. 4-5 [Zoosystematics and Evolution v. 94 (no. 2); ref. 36019] Temporary lagoons close to the Canabrava River, a tributary of the Santa Teresa River, middle Tocantins River basin, road TO-373, Alvorada do Tocantins municipality, Tocantins State, Brazil, 12°29'46"S, 49°00'51"W, elevation about 290 meters. Holotype: UFRJ 6440. Paratypes: CICCAA, UFRJ. •Valid as Spectrolebias gracilis Costa & Amorim 2018. Current status: Valid as Spectrolebias gracilis Costa & Amorim 2018. Rivulidae: Cynolebiinae. Distribution: Middle Tocantins River basin, Tocantins State, central Brazil. Habitat: freshwater.