Cryptobranchus alleganiensis is commonly known as the eastern hellbender or Allegheny alligator. However, there are several synonyms for this unique aquatic salamander. Some of the synonyms include the following: Necturus alleganiensis, Andrias scheuchzeri, Menopoma alleghaniensis, Megalograptus alleghaniensis, and Andrias alleghaniensis. These synonyms are often used interchangeably, depending on the context of the discussion. The eastern hellbender is an important indicator species of the ecological health of freshwater systems in the eastern United States, where it is found. Despite its secretive nature, the eastern hellbender is an important species to understand and protect.