| Admete Krøyer, 1842 |
| Admete microscopica (Dall, 1889) |
| Admetinae Troschel, 1865 |
| Admetula Cossmann, 1889 |
| Admetula bayeri Petit, 1976 |
| Agatrix Petit, 1967 |
| Agatrix agassizii (Dall, 1889) |
| Agatrix strongi (Shasky, 1961) |
| Aphera H. Adams & A. Adams, 1854 |
| Aphera tessellata (G. B. Sowerby I, 1832) |
| Axelella Petit, 1988 |
| Axelella campbelli (Shasky, 1961) |
| Axelella smithii (Dall, 1888) |
| Cancellaria Lamarck, 1799 |
| Cancellaria (Agatrix) Petit, 1967 |
| Cancellaria (Agatrix) strongi Shasky, 1961 |
| Cancellaria (Aphera) H. Adams & A. Adams, 1854 |
| Cancellaria (Aphera) tessellata G. B. Sowerby I, 1832 |
| Cancellaria (Bivetia) Jousseaume, 1887 |
| Cancellaria (Cancellaria) Lamarck, 1799 |