This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Rong (Vietnamese)
According to an ancient origin myth, the Vietnamese people are descended from a dragon and a fairy. The dragon was symbolic of bringing rain, essential for agriculture. It represents the emperor, the prosperity and power of the nation. Similar to the Chinese dragon, the Vietnamese dragon is the symbol of yang, representing the universe, life, existence, and growth.
The Vietnamese dragon is the combined image of crocodile, snake, cat, rat and bird. Historically, the Vietnamese people lived near rivers, so they venerated crocodiles as "thu?ng lu?ng" or "Giao Long", the first kind of Vietnamese dragon. There are some kinds of dragons found on archaeological objects. One group is that of the crocodile-dragons, with the head of a crocodile and the body of a snake.