brevis, Hemigrammus Ellis [M. D.] 1911:161, Pl. 3 (fig. 4) [Annals of the Carnegie Museum v. 8 (no. 1, art. 2); ref. 1269] Lagôas of Rio Grande at Barreiras, Brazil. Holotype: FMNH 54444 [ex CM 3068]. Paratypes: (38) ?CAS 44380 [ex IU 13290 & CM 3071] (8), FMNH 54434 (28), 54445-46 (7, 2). Type catalog: Henn 1928:64 [ref. 12305], Ibarra & Stewart 1987:44 [ref. 12367]. •Valid as Hemigrammus brevis Ellis 1911 -- (Lima & Oyakawa in Reis et al. 2003:131 [ref. 27061], Lima & Oyakawa in Reis et al. 2003:131 [ref. 27061], Marinho et al. 2008:58 [ref. 29547], DoNascimiento et al. 2017:[7] [ref. 35679], Albornoz-Garzón et al. 2019:937 [ref. 36872], Silva et al. 2020:6 [ref. 37809], Koerber et al. 2023:4 [ref. 40665], Vieira-Guimarães et al. 2024:38 [ref. 41258]). Current status: Valid as Hemigrammus brevis Ellis 1911. Acestrorhamphidae: Pristellinae. Distribution: South America: São Francisco River basin (Brazil). Habitat: freshwater.