nassa, Acara Heckel [J. J.] 1840:353 [Annalen des Wiener Museums der Naturgeschichte v. 2; ref. 2064] Boca de Juquià, Rio Guaporé, Mato Grosso State, Brazil. Syntypes: NMW 10538-40 (1, 1, 1). Type catalog: Kullander 1986:82 [ref. 12439]. •Valid as Acaronia nassa (Heckel 1840) -- (Kullander 1986:79 [ref. 12439], Ortega & Vari 1986:20 [ref. 9708], Keith et al. 2000:200 [ref. 24547], Lasso et al. 2001:101 [ref. 25928], Kullander in Reis et al. 2003:607 [ref. 27061], Sarmiento et al. 2014:121, 188 [ref. 35004], Melo et al. 2016:135 [ref. 34701], DoNascimiento et al. 2017:99 [ref. 35633], Silvano et al. 2020:327 [ref. 38134], Meza-Vargas et al. 2021:27 [ref. 39298]). Current status: Valid as Acaronia nassa (Heckel 1840). Cichlidae: Cichlinae. Distribution: Widespread in South America: Bolivia, Brazil, Colombia, French Guiana, Guyana and Peru. Habitat: freshwater.