1. Department of Zoology and AnthropologyFaculty of Biology, Sofia University “St. Kliment Ohridski”Sofia1164 Bulgaria
2. Department of Integrative ZoologyVienna UniversityAlthanstrasse 14A‐1090Vienna Austria
3. Faculty of Natural ScienceShumen University, Universitetska 115Shumen9700 Bulgaria
4. Vertebrates DepartmentNational Museum of Natural History1 Tsar Osvoboditel BlvdSofia1000 Bulgaria