1. Cytotaxonomic considerations on Hoplias lacerdae (Pisces, Erythrinidae);Bertollo LAC;Braz J Genet,1978
2. Karyotypic discrepancy between populations of Geophagus brasiliensis (Perciformes: Cichlidae), including the topotypical population, with possible taxonomic implications;Brum MJI;J Comp Biol,1998
3. Discordance in chromosome number among somatic and gonadal tissue cells of Gymnogeophagus balzanii (Pices: Cichlidae);Feldberg E;Braz J Genet,1984
4. Karyotypes of 10 species of Neotropical cichlids (Pisces, Perciformes);Feldberg E;Caryologia,1985
5. Fish adaptations;Feldberg E,2003