1. Department of Natural History, Royal Ontario Museum, Toronto, Ontario, Canada
2. Department of Invertebrate Zoology, Royal British Columbia Museum, Victoria, British Columbia, Canada
3. Williams College-Mystic Seaport Ocean & Coastal Studies Program, Mystic, CT, USA
4. Charles Darwin Research Station, Charles Darwin Foundation, Santa Cruz, Ecuador
5. Smithsonian Environmental Research Center, Edgewater, MD and Tiburon, CA, USA
6. Sistema Nacional de Áreas de Conservación/Área de Conservación Marina, Cocos, Costa Rica