1. Departments of Chemistry and Earth & Ocean Sciences, University of British Columbia, Vancouver, B.C., Canada, V6T 1Z1, Oncology and Immunology Division, Building 200/4219A, Wyeth Research, 401 North Middletown Road, Pearl River, New York 10965, Department of Marine Science, University of Hasanuddin, Makassar, Indonesia, 90245, and Zoologisch Museum, University of Amsterdam, P.O. Box 94766, 1090 AT, Amsterdam, The Netherlands