SEARCH Articles Figures Tables 3-Alkylpyridine from marine sponges 3-Alkylpyridinium from marine sponges Alkaloids from Marine Sponges Bastaxanthin from marine sponge lanthella bast J. Schneider 3-Alkylpiperidine Alkaloids Isolated from Marine Sponges in the Order Japanese marine sponge Manoalide from marine sponge Manzamines marine sponges Marine organisms sponges Marine sponge pigment Marine sponges Madangamine alkaloids Marine sponges Subject Marine sponges toxins, animal Marine sponges, 3-alkylpiperidine alkaloid Marine sponges, plant secondary metabolite Okinawan marine sponge Plakortis Pacific marine sponges Sponges