1. Amphibians and Reptiles Research Area, Granollers Museum of Natural Sciences, Palaudàries 114, E-08403 Granollers, Catalonia, Spain; e-mail: felixamat09@gmail.com
2. Catalan Society of Herpetology, Museum of Zoology, Passeig Picasso s/n, E-08003 Barcelona, Catalonia, Spain; e-mail: xavirivera@yahoo.es
3. Department of Biology, University of Rome “Tor Vergata”, Via della Ricerca Scientifica, I-00133 Rome, Italy; e-mail: antonioromano71@gmail.com
4. Non-profit-making for Wildlife Conservation Zirichiltaggi – Sardinia Wildlife Conservation, Strada Vicinale Filigheddu 62/C, I-07100 Sassari, Italy; e-mail: sotgiuseppe@gmail.com