xenodon, Epicyrtus Reinhardt [J. T.] 1851:37 [Videnskabelige Meddelelser fra den Naturhistoriske Forening i Kjøbenhavn, Aaret 1849 (nos 3-5); ref. 3692] Rio das Velhas, mouth of Rio São Francisco, Brazil. Syntypes: (3) MNHN 0000-9585 [ex ZMUC] (1); ZMB 9193 (1); ?ZMUC 203 (1), 206 (1), 211-212 (2). Type catalog: Bertin 1948:24 [ref. 19577], Nielsen 1974:45 [ref. 9588]. •Valid as Roeboides xenodon (Reinhardt 1851) -- (Lucena 1988:38 [ref. 22126], Lucena 1998:36 [ref. 23597], Lucena 2000:155 [ref. 25162], Britski 2001:21 [ref. 26046], Lucena & Menezes in Reis et al. 2003:206 [ref. 27061], Lucena 2007:134 [ref. 29256], Silva et al. 2020:7 [ref. 37809], Lucena 2024:273 [ref. 40817]). Current status: Valid as Roeboides xenodon (Reinhardt 1851). Characidae: Characinae. Distribution: South America: São Francisco River basin (Brazil). Habitat: freshwater.