6-Propionyllumazines from the Marine Polychaete, Odontosyllis undecimdonta

6-Propionyllumazines from the Marine Polychaete, <i>Odontosyllis undecimdonta</i> A New Hexagonal Cyclic Enol Phosphate of 6-b-Hydroxypropionyllumazines from the Marine Swimming Polychaete, Odontosyllis undecimdonta 6-Acyllumazines from the Marine Polychaete, Odontosyllis undecimdonta (S)-6-(1-Hydroxypropyl)lumazine Derivatives from the Marine Polychaete, Odontosyllis undecimdonta (S)-2-Methyl-1,5-bis(1,3-dimethyl-6-lumazinyl)-1,5-pentanedione from the Marine Polychaete, Odontosyllis undecimdonta 1,3-Dimethyllumazine Derivatives from <i>Limnatis </i><i>n</i><i>ilotica</i> Extending the Record of Bis-γ-pyrone Polypropionates from Marine Pulmonate Mollusks ISOLATION AND STRUCTURES OF TWO NEW PYRAZINES, PALYTHAZINE AND ISOPALYTHAZINE FROM <i>PALYTHOA TUBERCULOSA</i> Malyngamides O and P from the Sea Hare <i>Stylocheilus longicauda</i> Two diverse constituents of the cephalaspidean mollusk Smaragdinella calyculata