dentatus, Ageneiosus Kner [R.] 1858:441 [71] [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 26 (s. 373); ref. 2630] Suriname. Syntypes: NMW 47823 (6). Type catalog: Ferraris 2007:70 [ref. 29155]. On p. 71 of separate. •Synonym of Ageneiosus ucayalensis Castelnau 1855 -- (Ferraris in Reis et al. 2003:472 [ref. 27061] with question, Ferraris 2007:70 [ref. 29155] with question, Mirande & Koerber 2015:30 [ref. 35117]). •Valid as Ageneiosus dentatus Kner 1858 -- (Burgess 1989:286 [ref. 12860], Gómez & Chebez 1996:61 [ref. 23791], Le Bail et al. 2000:52 [ref. 24549], López et al. 2003:57 [ref. 27366], Ribeiro et al. 2017:5, 18 [ref. 35133], DoNascimiento et al. 2017:86 [ref. 35633], Calegari et al. 2019:[98] [ref. 36961], Careaga et al. 2020:77 [ref. 37774], Hashimoto et al. 2020:[3] 16 [ref. 37940], Silvano et al. 2020:206 [ref. 38135]). Current status: Valid as Ageneiosus dentatus Kner 1858. Auchenipteridae: Auchenipterinae. Distribution: South America: Orinoco and Amazonas River basins (Guyana, Suriname, Brazil, Colombia, Bolivia and Venezuela). Habitat: freshwater.