| Specimen ID | 50176 |
| Group | Mollusks-Bivalves |
| Genus | Perna |
| Species | perna |
| Common Name | Mexilhao mussel |
| State | TX |
| County | Calhoun |
| Locality | Matagorda Bay at Port O'Connor, TX |
| Mapping Accuracy | Accurate |
| HUC8 Name | West Matagorda Bay |
| HUC8 Number | 12100402 |
| HUC10 Name | Powderhorn Lake-Matagorda Bay |
| HUC10 Number | 1210040205 |
| HUC12 Name | Powderhorn Lake-Matagorda Bay |
| HUC12 Number | 121004020500 |
| Map | |
| Collection Month | 5 |
| Collection Year | 1995 |
| Year Accuracy | Actual |
| Potential Pathway | shipping hull fouling |
| Status | established |
| Comments | Perna perna was observed as live food in a California seafood market by J.C. Britton. |
| Record Type | Personal communication |
| Verifier | Stewart Jacks, USFWS, Corpus Christi, TX |
| Freshwater/Marine | Marine |
| Number Collected | several |