| Synalpheus williamsi Ríos & Duffy, 1999 | Accepted name (WoRMs) |
| Status | senior synonym, original combination |
| ICZN valid name | Yes |
| Status ref. | Hultgren, K.M., K.S. MacDonald III and J.E. Duffy, 2010 |
| Comment | |
| Etymology of Generic name | |
| Etymology of specific name |