| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Cadulus grandis | Verrill, 1884 | synonym | No | senior synonym |
original combination |
| Polyschides grandis | (Verrill, 1884) | accepted name | Yes | senior synonym |
new combination |
| Siphonodentalium grandis | (Verrill, 1884) | synonym | No | senior synonym |
new combination |