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Wiktionary
mole salamander

n. 1 Any member of the salamander genus (taxlink Ambystoma genus), including the axolotl and the tiger salamander, but especially 2 # (taxlink Ambystoma talpoideum species noshow=1)

WordNet
mole salamander

n. brownish-black burrowing salamander of southeastern United States [syn: Ambystoma talpoideum]

Wikipedia
Mole salamander

The mole salamanders ( genus Ambystoma) are a group of salamanders endemic to North America, the only genus in the family Ambystomatidae. The group has become famous due to the presence of the axolotl (A. mexicanum), widely used in research, and the tiger salamander (A. tigrinum, A. mavortium) which is the official amphibian of many states, and often sold as a pet.