Article: Opinion 1345: Laomedea flexuosa Alder, 1857, Sertulasia volubilis Linnaeus, 1758 and Campanularia johnstoni Alder, 1856 designated as type species of Laomedea Lamouroux, 1812, Campanularia Lamarck, 1816 and Clytia Lamouroux, 1812 (Coelenterata, Hydroida) respectively