Nudibranchs and Sea Slugs Genus
| Genus | Family | Sample species | # Species |
|---|---|---|---|
| Peltodoris | Dorididae | 3 | |
| Petalifera | Aplysiidae | 2 | |
| Phestilla | Tergipedidae | 3 | |
| Phidiana | Glaucidae | 6 | |
| Philine | Philinidae | 1 | |
| Philinopsis | Aglajidae | 9 | |
| Phyllidia | Phyllidiidae | 19 | |
| Phyllidiella | Phyllidiidae | 12 | |
| Phyllidiopsis | Phyllidiidae | 12 | |
| Phyllodesmium | Glaucidae | 15 | |
| Placida | Limapontiidae | 1 | |
| Plakobranchus | Plakobranchidae | 2 |