affinis, Anacyrtus Günther [A.] 1868:481 [Annals and Magazine of Natural History (Series 4) v. 1 (no. 6) (art. 56); ref. 1992] Río Huallaga, Amazon system, Peru. Syntypes: BMNH 1867.6.13.61-62 (2). Also published in Günther (Sept.) 1868:246 [ref. 5756]. •Valid as Roeboides affinis (Günther 1868) -- (Ortega & Vari 1986:9 [ref. 9708], Taphorn 1992:315 [ref. 23654], Lucena 1998:36 [ref. 23597], Lucena 2000:155 [ref. 25162], Lucena & Menezes in Reis et al. 2003:205 [ref. 27061], Lucena 2007:119 [ref. 29256], Koerber 2011:2 [ref. 31122], Barriga Salazar 2014:109 [ref. 35745], Koerber 2014:3 [ref. 33621], Litz & Koerber 2014:11 [ref. 33622], Sarmiento et al. 2014:51, 185 [ref. 35004], Mirande & Koerber 2015:18 [ref. 35117], Bertaco et al. 2016:414 [ref. 34561], Koerber et al. 2017:29 [ref. 35267], DoNascimiento et al. 2017:47 [ref. 35633], Urbano-Bonilla et al. 2018:87 [ref. 35773], Meza-Vargas et al. 2021:19 [ref. 39298], Koerber et al. 2022:40 [ref. 39235], Cortés Hernández et al. 2023:455 [ref. 40760], Loureiro et al. 2023:56 [ref. 40506]). Current status: Valid as Roeboides affinis (Günther 1868). Characidae: Characinae. Distribution: Widespread in South America. Habitat: freshwater.