Asian dragonfish can be subdivided into seven species according to their pure lineage: chili red dragon, blood red dragon, orange red dragon, overbacked golden dragon, red-tailed golden dragon, green dragon, and yellow-tailed dragon.
There are two types of dragonfish in Australia: the star-spotted dragon, and the star-spotted spotted dragon
There are three main types of fish in the South American bony-tongue fish family: the silver dragon, the black dragon, and the elephant fish (also known as the walrus and the giant bony-tongue fish)
The earliest category of dragonfish is the silver dragonfish, which lives in many regions including the Southeast Asian region of Asia, the Amazon basin of South America, the Nile basin of Africa, and the Australian and Papua New Guinea regions. Papua New Guinea.
The dragonfish, a very ancient fish, the English translation of Arowana, the scientific name "scleropages", for the tongue bone pharyngeal meaning. In the classification, the dragonfish belongs to the bone tongue fish family, that is, bone pharyngeal fish family. Because of its very similar to the appearance of the dragon, mainland China called "dragonfish"; because of its juvenile dragon yolk sac, Hong Kong called "dragon spitting pearl", and Japan also called "silver boat dagger". No matter how it is called, it has been as feng shui fish, fortune fish, ornamental fish into the tens of thousands of households.