| Crepidula osculans C. B. Adams, 1852 |
| Crepidula perforans (Valenciennes, 1846) |
| Crepidula plana Say, 1822 |
| Crepidula rostrata C. B. Adams, 1852 |
| Crepidula striolata Menke, 1850 |
| Crepidula uncata Menke, 1847 |
| Crepidula ustulatulina Collin, 2002 |
| Crepipatella Lesson, 1830 |
| Crepipatella dorsata (Broderip, 1834) |
| Crepipatella lingulata (Gould, 1846) |
| Crucibulum Schumacher, 1817 |
| Crucibulum (Crucibulum) Schumacher, 1817 |
| Crucibulum (Crucibulum) monticulus Berry, 1969 |
| Crucibulum (Crucibulum) personatum Keen, 1958 |
| Crucibulum (Crucibulum) scutellatum (W. Wood, 1828) |
| Crucibulum (Crucibulum) spinosum (G. B. Sowerby I, 1824) |
| Crucibulum (Dispotaea) Say, 1924 |
| Crucibulum (Dispotaea) concameratum Reeve, 1859 |
| Crucibulum (Dispotaea) pectinatum P. P. Carpenter, 1856 |
| Crucibulum auricula (Gmelin, 1791) |