Fucanglong

In Chinese mythology the Fucanglong (simplified Chinese: 伏藏龙; traditional Chinese: 伏藏龍; pinyin: Fúcánglóng) or Fu-ts'ang-Lung (Wade-Giles) is the Chinese underworld dragon which guard buried treasures, both natural and man-made. Volcanoes are said to be created when they burst out of the ground to report to heaven. Futs-lung possesses a magic pearl which is his most treasured possession