Journal of Biogeography

Front cover: Salamanders belonging to the Ensatina complex form a circular distribution around the Central Valley of California, and are a classic example of a ring species. In this issue, Kuchta et al. (see pp. 982–995) evaluate competing biogeographical scenarios for the formation of the ring-like distribution. The specimen on the cover, from the Santa Cruz Mountains of central coastal California, belongs to the subspecies E. eschscholtzii xanthoptica (the Yellow-eyed Ensatina). Photo credit: Mitchell F. Mulks. This journal is available online at Wiley InterScience. Visit www3.interscience.wiley.com to search the articles and register for table of contents and e-mail alerts