descalvadensis, Roeboides Fowler [H. W.] 1932:359, Fig. [Proceedings of the Academy of Natural Sciences of Philadelphia v. 84; ref. 16366] Descalvados, Mato Grosso, Brazil. Holotype: ANSP 53718. Paratypes: ANSP 53719 (1). Type catalog: Böhlke 1984:45 [ref. 13621]. •Valid as Roeboides descalvadensis Fowler 1932 -- (Lucena 1988:33 [ref. 22126], Lucena 1998:36 [ref. 23597], Britski et al. 1999:53 [ref. 24147], Lucena 2000:155 [ref. 25162], Lucena & Menezes in Reis et al. 2003:205 [ref. 27061], Lucena 2007:127 [ref. 29256], Mirande 2010:494 [ref. 31006], Koerber 2011:2 [ref. 31122], Koerber 2014:3 [ref. 33621], Sarmiento et al. 2014:51, 185 [ref. 35004], Mirande & Koerber 2015:18 [ref. 35117], Koerber et al. 2017:29 [ref. 35267], dos Reis et al. 2020:458 [ref. 38364], Chuctaya et al. 2022:24 [ref. 42137], Kampfert et al. 2025:281 [ref. 42023]). Current status: Valid as Roeboides descalvadensis Fowler 1932. Characidae: Characinae. Distribution: Widespread in South America: Paraná, Paraguay and Amazonas basins (Brazil, Paraguay, Peru). IUCN (2023): Least Concern. Habitat: freshwater.