| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Diplodonta aleutica Dall, 1901 |
Aleutian diplodon | Arctic and Eastern Pacific | |
| Diplodonta bogii van Aartsen, 2004 |
Mediterranean Sea | ||
| Diplodonta brocchii (Deshayes, 1850) |
Mediterranean Sea | ||
| Diplodonta candeana (d'Orbigny, 1842) |
Cande diplodon | North America | |
| Diplodonta danieli Klein, 1967 |
Western Atlantic | 2.4 | |
| Diplodonta gabbi Dall, 1900 |
Western Atlantic | ||
| Diplodonta gurjanova Zorina, 1978 |
Western Pacific | ||
| Diplodonta impolita Berry, 1953 |
Rough diplodon | Northeast Pacific | 3.6 |
| Diplodonta intermedia Biondi, 1859 |
Mediterranean Sea | ||
| Diplodonta lateralis Smith, 1876 |
Western Indian Ocean | 1.86 | |
| Diplodonta notata Dall & Simpson, 1901 |
Marked diplodon | Western Central Atlantic | 1.1 |
| Diplodonta nucleiformis Wagner, 1838 |
Nut diplodon | Western Atlantic | |
| Diplodonta orbella (Gould, 1851) |
Orb diplodon | East Pacific | |
| Diplodonta patagonica (d'Orbigny, 1842) |
Western Atlantic | 1.9 | |
| Diplodonta portesiana (d'Orbigny, 1846) |
Western Atlantic | 1.9 | |
| Diplodonta punctata (Say, 1822) |
Atlantic diplodon | Western Atlantic | 1.924 |
| Diplodonta rotundata (Montagu, 1803) |
Mediterranean Sea | ||
| Diplodonta semiaspera Philippi, 1836 |
Pimpled diplodon | Eastern Pacific and Western Central Atlantic | |
| Diplodonta sericata (Reeve, 1850) |
Flat diplodon | East Pacific | |
| Diplodonta soror Adams, 1852 |
Sister diplodon | North America | |
| Diplodonta subglobosa Adams, 1852 |
Subglobose diplodon | North America | |
| Diplodonta sublateralis (Smith, 1844) |
Eastern Indian Ocean | ||
| Diplodonta subrotunda Issel, 1869 |
Western Indian Ocean | ||
| Diplodonta torelli Jeffreys, 1876 |
Arctic and Atlantic Ocean | ||
| Diplodonta trigona (Scacchi, 1835) |
Mediterranean Sea | ||
| Diplodonta venezuelensis Dunker, 1848 |
Venezuela diplodon | East Pacific | |
| Diplodonta verrilli Dall, 1900 |
Inflated diplodon | Western Atlantic | 2 |