porphyreus, Ageniosus Cope [E. D.] 1867:404 [Transactions of the American Philosophical Society (New Series) v. 13 (pt 3) (art. 13); ref. 18027] Suriname. Lectotype: ANSP 8389. Paralectotypes: ANSP 8388 (1). Type catalog: Böhlke 1984:17 [ref. 13621], Ferraris 2007:70 [ref. 29155]. Original genus is correctly Ageneiosus. Lectotype established by Fowler 1915:224 [ref. 1392]. •Valid as Ageneiosus porphyreus Cope 1867 -- (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], Ribeiro et al. 2017:69 [ref. 35133]). Current status: Synonym of Ageneiosus ucayalensis Castelnau 1855. Auchenipteridae: Auchenipterinae. Distribution: South America. Habitat: freshwater.