1. Department of Biological Sciences, University of Texas at El Paso, USA
2. Royal Belgian Institute of Natural Sciences, Belgium
3. Institute of Vertebrate Biology of the Czech Academy of Sciences, Brno, Czech Republic
4. National Museum of the Czech Republic, Department of Zoology, Prague, Czech Republic
5. Institut Supérieur d’Ecologie pour la Conservation de la Nature, Katana Campus, Democratic Republic of the Congo
6. Laboratoire d’Herpétologie, Département de Biologie, Centre de Recherche en Sciences Naturelles, Democratic Republic of the Congo
7. School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, Johannesburg, South Africa