Distribution and collecting areas of phenotypes of the genus Symphysodon. Numbers represent: (1) Tabatinga (Calderão River), (2) lower Jutaí River, (3) Lake Santa Maria (Japurá River), (4) Bauana (Juruá River), (5) Igarapé Bowona (Tefé River), (6) Lake Coari (Coari River), (7) Lake Castanho (Purus River), (8) Lake Manacapuru (Manacapuru River), (9) Iranduba/Mamuri (Solimões River), (10) lower Demini River, (11) Igarapé Bui-Bui (Negro River), (12) Novo Airão (Negro River), (13) Novo Aripuanã-Acari (Madeira River), (14) Nova Olinda do Norte (Madeira River), (15) central Abacaxis River, (16) Maues (Maués River), (17) Itapiranga (Uatumã River), (18) Nhamundá (Nhamundá River), (19) Porto Trombetas (Trombetas River), (20) Belterra (Tapajós River), (21) Lake Grande (Amazonas River), (22) Igarapé Arapiranga (Jari River), (23) Vitória do Xingu (Xingu River), and (24) Cametá (Tocantins River). Colors correspond to the phenotypes analyzed in this study: green = green phenotype; blue = blue phenotype; black = Heckel phenotype; yellow = abacaxi phenotype; red = brown phenotype; pink = Xingu clade. Localities 13/14 and 18 contained the “abacaxi” and “brown” phenotypes and the “Heckel” and “brown” phenotypes, respectively.