where are eels found in the world
The ancestors of modern New Zealand eels (like Anguilla dieffenbachii) had been swimming up and down New Zealand waterways since at least the early Miocene (23 million years ago). The longfin eel is one of the largest eels in the world and it is found only in the rivers and lakes of New Zealand.
The European conger (Conger conger) is a species of conger of the family Congridae. It is the largest eel in the world and native to the northeast Atlantic, including the Mediterranean Sea.