| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Austromegabalanus cylindricus (Gmelin, 1780) |
Southeast Atlantic | ||
| Austromegabalanus nigrescens (Lamarck, 1818) |
Southwest Pacific | ||
| Austromegabalanus psittacus (Molina, 1788) |
Giant barnacle | Southeast Pacific and Southwest Atlantic | 30 |