[PDF] A new vertebrate for Europe: the discovery of a range‐restricted relict viper in the western Italian Alps | Semantic Scholar
@article{Ghielmi2016ANV, title={A new vertebrate for Europe: the discovery of a range‐restricted relict viper in the western Italian Alps}, author={Samuele Ghielmi and Michele Menegon and Stuart J. Marsden and Lorenzo Laddaga and Sylvain Ursenbacher}, journal={Journal of Zoological Systematics and Evolutionary Research}, year={2016}, volume={54}, pages={161-173}, url={https://api.semanticscholar.org/CorpusID:88740081} }
Vipera walser is described, a new viper species from the north-western Italian Alps that is remarkably distinct genetically from both V. berus and other vipers occurring in western Europe and shows closer affinities to species occurring only in the Caucasus.