mud puppy
A big aquatic salamander that lives under rocks in creeks and rivers.
Also called mudpuppy, waterdog.
Updated September 24, 2026
mud puppy pronunciation
/MUD pup-ee/
Meaning
Around rural Southern and Appalachian water, a mud puppy (also mudpuppy) is that slimy, gill-flared salamander you flip up when you move a rock in the creek. Kids and fishermen use the name freely; biologists pin it mostly on Necturus, the common mudpuppy. Folks mix them up with hellbenders and other waterdogs. Either way, if it looks like a mud-colored puppy with feathery gills, somebody is calling it a mud puppy.
How folks use it
- “I turned over a rock and a mud puppy scooted right under my boot.”
- “Don't put that mud puppy in the bait bucket; it ain't a fish.”
Origin and etymology
Folk name for a large aquatic salamander. Tennessee Wildlife Resources Agency notes the common mudpuppy got its name from an old belief that it barked. The animal lives in streams and rivers across much of the eastern interior, including Tennessee, western North Carolina, and neighboring states. Waterdog is a related local label for the same kind of critter.
Frequently asked questions
Do mud puppies really bark?
No. That was an old story. They are quiet salamanders that live in the water.