1. Department of Ecology and Evolutionary Biology and Biodiversity Institute University of Kansas Lawrence Kansas 66045
2. Current address: Department of Vertebrate Zoology and Anthropology California Academy of Sciences San Francisco California 94118
3. Section of Integrative Biology University of Texas and Texas Natural Science Center Austin Texas 78712
4. Current address: Department of Biology University of Oklahoma Norman Oklahoma 73072
5. Herpetology Section, Zoology Division National Museum of the Philippines Padre Burgos Avenue, Ermita 1000 Manila Philippines
6. Department of Integrative Biology University of California Berkeley California 94720