To the majority of people the word “dragon” denotes one animal only. There are, however, at least eight species of animals which bear this name. These are the Lung Wang, the Shen Lung, the Li Lung, the Chiao Lung, the Ying Lung, the Chiu Lung, the Tsao Lung, and the Tu Lung. They all belong to the genus dragon (Lung), but each has one or more characteristics which differentiates it from the others. For example, the Li Lung, or Chih Lung, as it is also named, has and is the only species which possesses wings. It is, however, but one of these species, the Shen Lung, which will be considered at this time. Of the eight varieties this is the one best known. The others may be dismissed with a word. Dr. Williams, in his “Middle Kingdom,” mentions only three varieties and says that these are respectively dragons of the sky, of the sea, and of marshes. However, it seems that the Chinese are not generally accustomed to make such a classification. They rather consider that the one species, Shen Lung, controls and operates in all of these three spheres. Most of the other varieties are minor creatures which are practically unknown and have slight bearing upon this study. The one exception to this rule is the Lung Wang, or dragon king. This species differs from the others in that its members possess a dragon’s head upon a human body. By some this dragon is said to answer to Neptune in Western mythology. Each ocean has a dragon king. The members of this species differ from those of the one in which we are the most interested in that dragon kings rarely grow old and never die. The remaining varieties are all quite secondary and practically never appear in any form of art. These are mentioned only occasionally in Chinese literature. This article will therefore be confined to an account of the Shen Lung, or spirit dragon, the real dragon, the dragon which has held China in its spell since the days of Yao and Shun.