• (1) Pachydinium mediterraneum - Peridinium decipiens
• (2) Peridinium deficiens - Phacus ovalis
• (3) Phacus ovum - Platyophrya dubia
• (4) Platyophrya lata - Protoperidinium fimbriatum
• (5) Protoperidinium gaarderae - Pyxicola socialis