Species that contain: Cichlasoma and dimerus [ 3 ] records

centralis, Heros Holmberg [E. L.] 1891:183 [Revista Argentina de Historia Natural (Buenos Aires) v. 1; ref. 2192] Santiago de l'Estero Province, Argentina. No types known. •Synonym of Cichlasoma dimerus (Heckel 1840) -- (Kullander 1983:193 [ref. 8319] with question, Kullander in Reis et al. 2003:622 [ref. 27061] with question, Litz & Koerber 2014:33 [ref. 33622], Mirande & Koerber 2015:56 [ref. 35117], Koerber et al. 2017:77 [ref. 35267], Hablützel & Huanto 2020:52 [ref. 37939] with question). Current status: Synonym of Cichlasoma dimerus (Heckel 1840). Cichlidae: Cichlinae. Habitat: freshwater.

dimerus, Acara Heckel [J. J.] 1840:351 [Annalen des Wiener Museums der Naturgeschichte v. 2; ref. 2064] Rio Cuiabá, Mato Grosso State, Brazil. Holotype: NMW 33620. •Valid as Cichlasoma dimerus (Heckel 1840) -- (Kullander 1983:193 [ref. 8319], Gómez & Chebez 1996:65 [ref. 23791], Britski et al. 1999:151 [ref. 24147], Kullander in Reis et al. 2003:622 [ref. 27061], López et al. 2003:75 [ref. 27366], Casciotta et al. 2003:158 [ref. 28130], Menni 2004:87 [ref. 28131], Ottoni 2011:336 [ref. 31675], Litz & Koerber 2014:33 [ref. 33622], Sarmiento et al. 2014:189 [ref. 35004], Mirande & Koerber 2015:56 [ref. 35117], Bertaco et al. 2016:425 [ref. 34561], Nión et al. 2016:50 [ref. 35565] with author as Heckel 1840, Koerber et al. 2017:77 [ref. 35267], DoNascimiento et al. 2017:[29] [ref. 35679], Dickens 2019:169 [ref. 37135], Hablützel & Huanto 2020:52 [ref. 37939], Reis et al. 2020:472 [ref. 38364], Loureiro et al. 2023:159 [ref. 40506], Page et al. 2023:136 [ref. 40505]). Current status: Valid as Cichlasoma dimerus (Heckel 1840). Cichlidae: Cichlinae. Distribution: South America: Paraná and Paraguay River basins (Argentina, Brazil, Bolivia, Paraguay and Uruguay). Habitat: freshwater.

marginatus, Acara Heckel [J. J.] 1840:350 [Annalen des Wiener Museums der Naturgeschichte v. 2; ref. 2064] Cuiabá, Mato Grosso State, Brazil. Holotype (unique): NMW 33673. •Synonym of Cichlasoma dimerus (Heckel 1840) -- (Kullander 1983:193 [ref. 8319], Kullander in Reis et al. 2003:622 [ref. 27061], Litz & Koerber 2014:33 [ref. 33622], Mirande & Koerber 2015:56 [ref. 35117], Koerber et al. 2017:77 [ref. 35267], Hablützel & Huanto 2020:52 [ref. 37939]). Current status: Synonym of Cichlasoma dimerus (Heckel 1840). Cichlidae: Cichlinae. Habitat: freshwater.