- Anguilliformes, order Anguilliformes, order Apodes - elongate fishes with pelvic fins and girdle absent or reduced
--1 is a kind of animal order
--1 is a member of Malacopterygii, superorder Malacopterygii
--1 has members:eel; Anguillidae, family Anguillidae; Muraenidae, family Muraenidae; Congridae, family Congridae