| Nototriphora decorata (C. B. Adams, 1850) |
| Sagenotriphora Marshall, 1983 |
| Sagenotriphora osclausum (Rolán & Fernández-Garcés, 1995) |
| Similiphora Bouchet, 1985 |
| Similiphora intermedia (C. B. Adams, 1850) |
| Strobiligera Dall, 1924 |
| Strobiligera bigemma (Watson, 1880) |
| Strobiligera inflata (Watson, 1880) |
| Triforis Deshayes, 1834 |
| Triforis (Triphoris) Deshayes, 1832 |
| Triforis (Triphoris) lilacina Dall, 1889 |
| Triforis abruptus Dall, 1881 |
| Triforis albida A. Adams, 1854 |
| Triforis colon Dall, 1881 |
| Triforis cylindrellus Dall, 1881 |
| Triforis longissima Dall, 1881 |
| Triforis nigrocincta (C. B. Adams, 1839) |
| Triforis olivacea Dall, 1889 |
| Triforis torticulus Dall, 1881 |
| Triforis triserialis Dall, 1881 |