In Red Sea and Arabian Gulf, this will be the first study to phylogenetic analysis to zooxanthellate scleractinian coral species. This is a primary base linezooxanthellate scleractinian coral study from morphology, genetics, environment of some common zooxanthellate scleractinian coralon Red Sea and Arabian Gulf as this area is reservoir of coral to face the increase of sea surface temperature, which is main source of coral bleaching.