1. Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093, USA
2. Biology Department, Stanford University, Stanford, CA 94305, USA
3. Department of Marine Zoology, Senckenberg Research Institute and Natural History Museum, 60325 Frankfurt, Germany
4. Department of Biology, University of Victoria, Victoria, BC V8P 5C2, Canada
5. Marine Directorate of the Scottish Government, Aberdeen AB11 9DB, UK
6. Centre for Biodiversity Genomics, University of Copenhagen, 2100 Copenhagen, Denmark
7. School of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8P 5C2, Canada
8. Department of Invertebrate Zoology, Smithsonian National Museum of Natural History, NHB-163, Smithsonian Institution, Washington, DC 20560, USA