<a href=showthread.php?s=&postid=12733649#post12733649 target=_blank>Originally posted</a> by fittiger
Where did you get N=chromosomes information?
As far as Family and Genus classification, they are both in the Family Pomacentridae although they are separated by Genus classification; Amphiprion polymnus & Chromis viridis respectively. But lets not forget that these are classifications set up by humans for the purpose of organization and are not laws of science and thereby can be changed.
For that matter, the Premnas biaculeatus (maroon clown) & Amphiprion percula (Percula clown) have been shown to breed and they are classified in two different Genus within this same Family of Pomacentridae.
Remember people, absolutes only impede progress.