1. Department of Zoology, Faculty of Science University of South Bohemia České Budějovice Czech Republic
2. Institute of Vertebrate Biology of the Czech Academy of Sciences Brno Czech Republic
3. Department of Zoology and Entomology, Mammal Research Institute University of Pretoria Pretoria South Africa
4. Département Adaptations du Vivant UMR 7179 MECADEV C.N.R.S/M.N.H.N., Bâtiment d'Anatomie Comparée Paris France