1. Different families and genera: The species of eel and eel are different. Eel belongs to the genus Anguilla of Anguilla, and eel belongs to the family Anguilla of Synbranchia.

2. Different living ranges: The distribution ranges of eels and eels are also different. Taking China as an example, eels are mainly distributed in Yangtze River, Pearl River, Minjiang River and other areas, and they mainly live at the junction of fresh water and salt water. Eels are mainly distributed in southern China, such as Yunnan, Sichuan and Guizhou.

There are many eel breeds, and there are 18 eel breeds in the world. Common eels are European eels, Japanese eels, Australian eels, African eels, perch eels, Philippine eels, New Zealand eels, Indonesian eels, Celebes eels, short-fin eels, etc. Among them, Japanese eels are common and the most abundant eels. There are many eel varieties in China, such as Japanese eel, perch eel, short fin eel and Celebes eel in Taiwan Province. Eel is an ancient fish. They have survived on the earth for tens of millions of years, and human beings have known about them in recent decades.