1. Department of Integrative Biology and Museum of Vertebrate Zoology; University of California; 3101 Valley Life Sciences Building Berkeley CA 94720-3160 USA
2. Department of Wildlife Ecology and Conservation; University of Florida; 316 Newins-Ziegler Hall, PO Box 110430 Gainesville FL 32611-0430 USA
3. Department of Herpetology; San Diego Natural History Museum; PO Box 121390 San Diego CA 92112 USA