In Greek mythology Phrixus (also spelt Phryxus; Greek:Â ÎŠÏÎŻÎŸÎżÏ‚, Phrixos means “standing on end, bristling”) was the son of Athamas, king of Boeotia, and Nephele (a goddess of clouds). He was the twin brother of Helle and the father of Argus, Phrontis, Melas and Cy