Chinese name Latin name Alias European eel Anguilla anguilla Japanese eel Anguilla japonica White eel Australian eel Anguilla australis Black eel African eel Anguilla mossambica Perch eel Anguilla mormorata Philippine eel Anguilla mormorata New Zealand eel Anguilla dieffenbachi Indonesian eel Anguilla bicolor Pacifica Anguilla mormorata New Zealand eel Anguilla dieffenbachi Indonesian eel Anguilla bicolor Pacifica There are 18 species of eels in the world, among which there are four families in Taiwan: the Japanese eel, the perch eel, the Celebes eel, and the short-finned eel, but only the Japanese eel is the most abundant, and the other three species are rarely seen. They have survived on earth for tens of millions of years, but our understanding of them is only in the last few decades. For example, it was only in 1991 that the real spawning grounds of the eel were discovered. The sex of the eel is controlled by environmental factors and density, and when the density is high and there is not enough food, the eel will turn into a male, and vice versa, it will turn into a female. In Taiwan's rivers and streams most eels are females due to their small numbers.

The common ones are:

European eel (Anguilla anguilla)

American eel (Anguilla rostrata)

Japanese eel (White eel; Anguilla japonica)

Australian eel (Black eel; Anguilla australis )

African eel (Anguilla mossambica)

Perch eel (Anguilla mormorata)

Philippine eel (Anguilla mormorata)

New Zealand eel (Anguilla dieffenbachi)

Indonesian eel (Anguilla bicolor Pacifica)