parnaguensis, Ageneiosus Steindachner [F.] 1910:399, Figured [Annalen des Naturhistorischen Museums in Wien v. 24 (nos. 3-4) (for 1910-1911); ref. 10014] Lake Parnaguá, Piauhy State, Brazil. Syntypes: NMW 47832 (1), 47837-38 (1, 2). Type catalog: Ferraris 2007:70 [ref. 29155]. •Valid as Ageneiosus parnaguensis Steindachner 1910 -- (Burgess 1989:286 [ref. 12860]). •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]). •Synonym of Ageneiosus dentatus Kner 1858 -- (Ribeiro et al. 2017:18 [ref. 35133]). Current status: Synonym of Ageneiosus dentatus Kner 1858. Auchenipteridae: Auchenipterinae. Habitat: freshwater.