The Korean dragon is in many ways very similar in appearance to dragons of Chinese, Vietnamese and Japanese mythology. It differs from the Chinese dragon in that it developed a longer beard.
Very occasionally a dragon may be depicted as carrying an orb known as the Yeouiju (여의주), the Korean name for the mythical Cintamani, in its claws or in its mouth. It was said that whoever could wield the Yeouiju was blessed with the abilities of omnipotence and creation at will, and that only four-toed dragons (who had thumbs with which to hold the orbs) were both wise and powerful enough to wield these orbs, as opposed to the lesser, three-toed dragons.
As with China, the number nine is significant and auspicious in Korea, and dragons were said to have 81 (9×9) scales on their backs, representing yang essence.