EEL:

Eels (Anguilliformes; /æŋˌɡwɪlɨˈfɔrmiːz/) are an order of fish which consists of four suborders, 20 families, 111 genera and approximately 800 species. Most eels are predators. The term "eel" (originally referring to the European eel) is also used for some other similarly shaped fish, such aselectric eels and spiny eels, but these are not members of the Anguilliformes order.