1. Shannon Point Marine Center, Western Washington University, 1900 Shannon Point Road, Anacortes, Washington 98221, USA
2. Hawai‘i Institute of Marine Biology, University of Hawai‘i at Mānoa, P. O. Box 1346, Kane‘ohe, Hawai‘i 96744, USA
3. School of Earth and Space Exploration, Arizona State University, P. O. Box 871404, Tempe, Arizona 85287, USA