1. Goad, L.J., in: Marine Natural Products: Chemical and Biological Perspectives, vol. II, chap. 2. Ed. P.J. Scheuer. Academic Press, New York 1978.
2. Schmitz, F.J., in: Marine Natural Products: Chemical and Biological Perspectives, vol. I, chap. 5. Ed. P.J. Scheuer. Academic Press, New York 1978.
3. Rovirosa, J., Muñoz, O., San Martín, A., Seldes, A.M., and Gros, E.G., Lipids18 (1983) 570.
4. The three main sterols present in the organisms were 24-methylenecholesterol (40%), cholesterol (19%), and 22-dehydrocholesterol (17%) with different amounts of other C26, C27, C28 and C29 sterols.
5. Wyllie, S.G., Amos, B.A., and Tokes, L., J. org. Chem.42 (1977) 725.