1. Bentos I Expedition, organized by the Institute de Tecnologiá Pesquera de Taliarte, Las Palmas, Oct. 1981.
2. This communication was presented in the IVth IUPAC Int. Sym. Marine Natural Products, Teneriffe, 26–30 July 1982.
3. J.M. Stewart, F.A. Kundell and J.C. Baldwin, The X-ray 70 System. Computer Science Center, University of Maryland, College Park, MD 190.