| Specimen ID | 1418793 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | rostriformis |
| Subspecies | bugensis |
| Common Name | quagga mussel |
| State | CA |
| County | Ventura |
| Locality | Santa Clara River, below the Torrey Road Bridge on the northern most abutment adjacent to the thalweg |
| Mapping Accuracy | Accurate |
| HUC8 Name | Santa Clara |
| HUC8 Number | 18070102 |
| HUC10 Name | Middle Santa Clara River |
| HUC10 Number | 1807010208 |
| HUC12 Name | Pole Creek-Santa Clara River |
| HUC12 Number | 180701020802 |
| Map | |
| Collection Day | 23 |
| Collection Month | 8 |
| Collection Year | 2017 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft | dispersed |
| Status | unknown |
| Comments | One adult quagga mussel was detected below the Torrey Road Bridge. |
| Record Type | NAS sighting report |
| Verifier | United water Conservation District |
| Freshwater/Marine | Freshwater |
| Number Collected | 1 |
| Photo | |
