declivirostre, Characidium Steindachner [F.] 1915:31 [17] [Denkschriften der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Klasse. v. 93; ref. 4244] Río Coquenan, tributary of Río Caroni, Venezuela. Syntypes: NMW 62442 (4). On p. 17 of separate; also described in Steindachner 1917 [ref. 15259]. Species not listed in earlier abstract [ref. 18909]. •Valid as Characidium declivirostre Steindachner 1915 -- (Buckup 1993:101 [ref. 20831], Buckup in Reis et al. 2003:89 [ref. 27061], Peixoto & Wosiacki 2013:56 [ref. 32558], Lujan et al. 2013:456 [ref. 32922], Zanata & Camelier 2014:340 [ref. 33380] as cf. declivirostre, Zanata & Ohara 2015:375 [ref. 33970] as cf. declivirostre, Zanata & Camelier 2015:497 [ref. 33983] as cf. declivirostre, Zanata et al. 2015:381 [ref. 34023] as cf.decliviriostre, Zanata et al. 2020:10 [ref. 37813], Armbruster et al. 2021:109 [ref. 38198], Buckup 2024:297 [ref. 40817], Zanata et al. 2024:8 [ref. 41604]). Current status: Valid as Characidium declivirostre Steindachner 1915. Crenuchidae: Characidiinae. Distribution: South America: Orinoco River basin and upper Negro River drainage, Amazon River basin (Venezuela, Colombia and Brazil). Habitat: freshwater.