Pectinaria koreni – synoniem of Lagis koreni
Pectinaria koreni – synoniem of Lagis koreni
Peringia ulvae – synoniem of Hydrobia ulvae
Peringia ulvae – synoniem of Hydrobia ulvae
Phyllophora membranifolia – synoniem of Phyllophora pseudoceranoides
Phyllophora membranifolia – synoniem of Phyllophora pseudoceranoides
Polysiphonia nigrescens – synoniem of Polysiphonia fucoides
Polysiphonia nigrescens – synoniem of Polysiphonia fucoides
Polysiphonia urceolata – synoniem of Polysiphonia stricta
Polysiphonia urceolata – synoniem of Polysiphonia stricta
Polysiphonia violacea – synoniem of Polysiphonia harveyi
Polysiphonia violacea – synoniem of Polysiphonia harveyi