| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Arctus sordidus | Stimpson, 1860 | synonym | No | senior synonym |
original combination |
| Biarctus sordidus | (Stimpson, 1860) | accepted name | Yes | senior synonym |
new combination |
| Scyllarus sordidus | (Stimpson, 1860) | synonym | No | senior synonym |
new combination |