multiradiatus, Tetragonopterus Steindachner [F.] 1876:92 [44] [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 74 (1. Abth.); ref. 4225] Amazon River at Tefé, Brazil. Syntypes: (several) not found at NMW. On p. 44 of separate. No longer known from Argentina -- Koerber 2012:11[ref. 32229]. •Species inquirenda in Ctenobrycon -- (Benine & Cassati in Reis et al. 2003:126 [ref. 27061]). •Synonym of Ctenobrycon spilurus (Valenciennes 1850) -- (Benine 2024:144 [ref. 40817]). •Valid as Ctenobrycon multiradiatus (Steindachner 1876) -- (López et al. 2003:26 [ref. 27366], Menni 2004:77 [ref. 28131]). Current status: Valid as Ctenobrycon multiradiatus (Steindachner 1876). Acestrorhamphidae: Acestrorhamphinae. Distribution: South America: Amazon River basin, Brazil. Habitat: freshwater.