The species listed below are likely a small percentage of the red algae that grow in the ocean adjacent to Mount Desert Island. Please send corrections and updates to info@vfthomas.com. Photographs are welcome. Thank you.
| Class | Order | Family | Genus | Specific Epithet | authority | common name | Sources (full citations given after this table) |
| ? | ? | ? | Chondrus | crispus | ? | Irish-moss | Champlainers (RGG, TFV) |
| ? | ? | ? | Corallina | officinalis | ? | ? | Champlainers (RGG, TFV) |
| ? | ? | ? | Lithothamnion | glaciale | ? | ? | Champlainers (RGG, SG) |
| ? | ? | ? | Palmaria | palmata | ? | dulse | Champlainers (RGG, TFV) |
| ? | ? | ? | Polysiphonia | ? | ? | ? | Champlainers (RGG, TFV) |