Definition
*Amphiumidae* is a family of aquatic salamanders found in the southeastern United States. These salamanders are eel-like in appearance, with very reduced limbs. They inhabit swamps, streams, and wetlands. They are sometimes called congo eels, though they are not eels. Think of them as the 'mystery eels' of the amphibian world. They have a unique lifestyle. Their habitat makes them vulnerable to water pollution. They are fascinating examples of adaptation.