| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Megabalanus ajax (Darwin, 1854) |
Indo-Pacific | ||
| Megabalanus antillensis (Pilsbry, 1916) |
Western Atlantic | ||
| Megabalanus azoricus Pilsbry, 1916 |
Azorean barnacle | Eastern Atlantic | |
| Megabalanus californicus (Pilsbry, 1916) |
California barnacle | Eastern Central Pacific | 6 |
| Megabalanus coccopoma (Darwin, 1854) |
Titan acorn barnacle | Indo-Pacific and Southwest Atlantic | |
| Megabalanus concinnus (Darwin, 1854) |
Red speckled barnacle | Southern Pacific | |
| Megabalanus crispatus (Schroter, 1786) |
Eastern Central Atlantic and Northwest Pacific | ||
| Megabalanus occator (Darwin, 1854) |
Indo-West Pacific | ||
| Megabalanus peninsularis (Pilsbry, 1916) |
Southeast Pacific | ||
| Megabalanus rosa (Pilsbry, 1916) |
Rose barnacle | Indo-West Pacific | |
| Megabalanus spinosus (Gmelin, 1791) |
Eastern Central Atlantic | ||
| Megabalanus stultus (Darwin, 1854) |
Western Indian Ocean and Western Atlantic | ||
| Megabalanus tintinnabulum (Linnaeus, 1758) |
Circumglobal | 7.5 | |
| Megabalanus tulipiformis (Ellis, 1758) |
Eastern Central Atlantic | ||
| Megabalanus validus (Darwin, 1854) |
Indo-West Pacific | ||
| Megabalanus vesiculosus (Darwin, 1854) |
Southwest Pacific | ||
| Megabalanus vinaceus (Darwin, 1854) |
Southeast Pacific | ||
| Megabalanus volcano (Pilsbry, 1916) |
Indo-West Pacific | ||
| Megabalanus zebra (Darwin, 1854) |
Indo-West Pacific and Atlantic Ocean |