1. Department of Ecology and Evolutionary Biology; Cornell University; Ithaca NY 14853-2701 USA
2. Herpetology Section; California Academy of Sciences; San Francisco CA 94118 USA
3. Biodiversity and Conservation Biology Department; University of the Western Cape; Bellville 7535 South Africa
4. Institute of Vertebrate Biology; Academy of Sciences of the Czech Republic; 603 65 Brno Czech Republic
5. Department of Zoology; National Museum; 193 00 Prague Czech Republic
6. Section of Freshwater Biology; Department of Biology; University of Copenhagen; 2100 Copenhagen Denmark
7. Center for Macroecology; Evolution and Climate; Natural History Museum of Denmark; 2100 Copenhagen Denmark
8. Biogeography Department; Trier University; Trier 54286 Germany
9. North Carolina Museum of Natural Sciences; Raleigh NC 27601 USA