Mangiacotti, Marco, Laura Limongi, Marco Sannolo, Roberto Sacchi, Marco Zuffi, and Stefano Scali. 2014. “Head Shape Variation in Eastern and Western Montpellier Snakes”. Acta Herpetologica 9 (2):167-77. https://doi.org/10.13128/Acta_Herpetol-14194.