| Nucula cardara Dall, 1916 |
| Nucula carlottensis Dall, 1897 |
| Nucula castrensis Hinds, 1843 |
| Nucula chrysocoma Dall, 1908 |
| Nucula colombiana Dall, 1908 |
| Nucula concentrica Say, 1824 |
| Nucula costellata G. B. Sowerby I, 1833 |
| Nucula crenifera G. B. Sowerby I, 1833 |
| Nucula crenulata A. Adams, 1856 |
| Nucula culebrensis E. A. Smith, 1885 |
| Nucula cymella Dall, 1886 |
| Nucula darella Dall, 1916 |
| Nucula declivis Hinds, 1843 |
| Nucula divaricata Valenciennes, 1846 |
| Nucula eburnea G. B. Sowerby I, 1833 |
| Nucula elenensis G. B. Sowerby I, 1833 |
| Nucula exigua G. B. Sowerby I, 1833 |
| Nucula gibbosa G. B. Sowerby I, 1833 |
| Nucula inflata Hancock, 1846 |
| Nucula linki Dall, 1916 |