Affiliation: | 1. Department of Biology and Burke Museum of Natural History and Culture, University of Washington, Seattle, WA, USA;2. Department of Biology, University of Washington, Seattle, WA, USA;3. Laboratorio de Herpetología, Museo de Zoología, Departamento de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional Autónoma de México, México, D.F., Mexico;4. Moore Laboratory of Zoology, Occidental College, Los Angeles, CA, USA |