Salas E, Boza J
Escuela de Ciencias Biológicas, Universidad Nacional, Heredia, Costa Rica.
Rev Biol Trop. 1991 Nov;39(2):219-24.
The karyotype of three species of Cichlasoma: C. dovii, C. managuense and C. friedrichstali were studied. The number of diploid chromosomes is 2n = 48 in the first two species. Their karyotypes are composed of four pairs of meta-submetacentric chromosomes. The arms fundamental number (NF) is 56. C. friedrichstali has three pairs of meta-submetacentric chromosomes and 21 pairs of subtelocentric-telocentric chromosomes. This species presents two different diploid numbers, 2n = 48 and 2n = 47.
多氏丽体鱼、马那瓜丽体鱼和弗里德里希氏丽体鱼的核型进行了研究。前两个物种的二倍体染色体数为2n = 48。它们的核型由四对中着丝粒 - 亚中着丝粒染色体组成。臂基数（NF）为56。弗里德里希氏丽体鱼有三对中着丝粒 - 亚中着丝粒染色体和21对近端着丝粒 - 端着丝粒染色体。该物种呈现出两种不同的二倍体数，2n = 48和2n = 47。
