| Nominal Species (n = 7) | Present allocation (n = 3) | Ref. |
|---|---|---|
| Bulla abyssicola Dall, 1881 | Roxania pinguicula | 19 |
| Bulla cranchii Fleming, 1828 | Roxania utriculus | 3477 |
| Bulla guernei Dautzenberg, 1889 | Roxania pinguicula | 3446 |
| Roxania monterosatoi Dautzenberg & Fischer, 1896 | Roxania monterosatoi | 1056 |
| Bulla pinguicula Seguenza, 1879 | Roxania pinguicula | 3446 |
| Bulla utriculata Locard, 1886 | Roxania utriculus | 3477 |
| Bulla utriculus Brocchi, 1814 | Roxania utriculus | 3477 |