An order of the Amphibia class which includes salamanders and newts. They are characterized by usually having slim bodies and tails, four limbs of about equal size (except in Sirenidae), and a reduction in skull bones.

Synonyms: Eel, Congo, Congo Eel, Caudata, txid8311, Congo Eels, Salamander, Amphiuma, Eels, Congo, Salamanders, Urodela, txid8293