brevis, Doras (Corydoras) Kner [R.] 1853:146, Fig. 8 [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 11 [1853]; ref. 18262] Rio Negro, Brazil. Lectotype: NMW 46375. Paralectotypes: NMW 45397-99 (5), 46375 (1); RMNH 2965 (1). Type catalog: Ferraris 2007:179 [ref. 29155] wrongly with types. On p. 10 of separate. Available from illustration of swimbladder (see Sabaj & Ferraris in Reis et al. 2003:466 [ref. 27061]). Later described in more detail in Kner 1855:138, Pl. 6 (fig. 11). Lectotype selected by Sabaj & Arce H. 2017:14 [ref. 35518]. •Valid as Doras brevis Kner 1853 -- (Burgess 1989:223 [ref. 12860]). •Valid as Trachydoras brevis (Kner 1853) -- (Sabaj & Ferraris in Reis et al. 2003:466 [ref. 27061], Ferraris 2007:179 [ref. 29155], Birindelli 2014:538 [ref. 33501], Sarmiento et al. 2014:191 [ref. 35004], Sabaj & Arce H. 2017:14 [ref. 35518], Silvano et al. 2020:245 [ref. 38135], Taphorn et al. 2022:47 [ref. 41297]). Current status: Valid as Trachydoras brevis (Kner 1853). Doradidae: Doradinae. Distribution: South America: Amazon and Essequibo River basins (Brazil and Guyana). Habitat: freshwater.