Jefferson Salamander?

The other day, my nephews somehow came across this salamander, not sure where they got it from. It appeared to be cold and was very slow moving. I originally identified it as a Jefferson Salamander because they said it was found in the leaf litter. I haven't seen a salamander around my house in years!

Ambystoma spp.

However, after doing some research, I have discovered that the Ambystoma spp. complex is very genetically complicated. This cool link explains the weird genetics going on with this genus. It is worth checking out! -- http://www.ohioamphibians.com/salamanders/Unisexual_Ambystoma.html

***Update: This is a Small mouth Salamander. or mostly Small mouth.