Called such unflattering names as “mud devil,” “devil dog” and “ground puppy,” the hellbender salamander is the largest aquatic salamander in the United States, growing as long as 30 inches, though the average is 12-15 inches.

What is the biggest hellbender in the world?

The largest hellbender ever recorded was just over 29 inches long... nearly 2 1/2 feet! Their close relatives, salamanders in the genus Andrias, can reach lengths over 5 feet. Hellbenders have a flat body and head, a large, very keeled tail, and tiny eyes.

How big do eastern hellbenders get?

Appearance. The hellbender salamander is the largest salamander in the United States. They are blotchy brown to red-brown in coloration with a paler underbelly. They have been known to grow up to 29 inches long, though most will average about 12-15 inches.