《述异记》云:“虺五百年化为蛟，蛟千年化为龙，龙五百年为角龙，千年为应龙。”本文所列三件不同形制戰國風格玉器(文鎮, 玉圭, 玉劍格), 具有相同的虺龍紋飾, 頭若莽蛇, 尖耳直鬃, 口吐信, 四足, 尾巴開叉, 圖騰呈現方式尾部在上, 頭部在下.”Shu Yi Ji” says: “For five hundred years into a pre-dragon, a thousand years into a dragon, 500 years into a horned dragon, and a thousand years into a Ying dragon.” Three jade objects( jade paperweight, jade kwei, and jade sword guard) of different shapes and styles of the Warring States Period listed in this article have the same serpent-like dragon ornamentation, the head is like a snake, the pointed ears and the straight mane, the mouth has flickering tongues, there are four legs, the tail is split, the motif is presented with the tail up and the head down.