mudpuppy

[ muhd-puhp-ee ]
/ ˈmʌdˌpʌp i /

noun, plural mud·pup·pies.

any of several often large, aquatic salamanders of the genus Necturus, of eastern North America, having bushy, red gills and well-developed limbs.
any of several North American salamanders of the genus Ambystoma.

Origin of mudpuppy

An Americanism dating back to 1880–85; mud + puppy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020