| Scientific Name | TSN | Taxon Author | Common Name | Name Source | Usage | Reason (ITIS) | Taxon Rank |
|---|
| Ennucula agujana | 999003047 | (Dall, 1908) | | SBMNH | not public | mtsn | Species |
| Ennucula cardara | 999003048 | (Dall, 1916) | | SBMNH | not public | mtsn | Species |
| Ennucula columbiana | 999003049 | (Dall, 1908) | | SBMNH | not public | mtsn | Species |
| Ennucula cumingii | 999003050 | (Hinds, 1843) | | SBMNH | not public | mtsn | Species |
| Ennucula grayi | 999003051 | (d'Orbigny, 1846) | | SBMNH | not public | mtsn | Species |
| Ennucula linki | 567535 | (Dall, 1916) | Link nutclam | ITIS | valid | | Species |
| Ennucula panamina | 999003052 | (Dall, 1908) | | SBMNH | not public | mtsn | Species |
| Ennucula strangei | 999003053 | (A. Adams, 1856) | | SBMNH | not public | mtsn | Species |
| Ennucula strangeiformis | 999003054 | Dell, 1956 | | SBMNH | not public | mtsn | Species |
| Ennucula superba | 999003055 | (Hedley, 1902) | | SBMNH | not public | mtsn | Species |
| Ennucula taeniolata | 999003056 | (Dall, 1908) | | SBMNH | not public | mtsn | Species |
| Ennucula tenuis | 567536 | (Montagu, 1808) | smooth nutclam | ITIS | valid | | Species |
| Nucula bellotti | 79131 | A. Adams, 1856 | Belloti nutclam | ITIS | invalid | junior synonym of Ennucula tenuis | Species |
| Nucula linki | 79156 | Dall, 1916 | Link nutclam | ITIS | invalid | original name/combination of Ennucula linki | Species |
| Nucula quirica | 79130 | Dall, 1916 | spear nutclam | ITIS | invalid | junior synonym of Ennucula tenuis | Species |
| Nucula tenuis | 79128 | (Montagu, 1808) | smooth nutclam | ITIS | invalid | subsequent name/combination of Ennucula tenuis | Species |
| Nuculoma tenuis | 205489 | (Montagu, 1808) | | ITIS | invalid | subsequent name/combination of Ennucula tenuis | Species |
