The Tatzelwurm (means clawed worm) has been reported from the European Alps for centuries. It’s a big lizard-like thing with two clawed feet and a cat-like head by some descriptions.
No one has caught one that has ever been examined by modern science. I’d say it was firmly in the folklore category, but there’s at least a small chance that there is some sort of unknown lizard or salamander that is the basis for the legend. a