| Specimen ID | 167954 |
| Group | Crustaceans-Barnacles |
| Genus | Megabalanus |
| Species | coccopoma |
| Common Name | Titan acorn barnacle |
| State | FL |
| County | St. Johns |
| Locality | Matanzas River in St. Augustine (Intracoastal Waterway) [just S of the Bridge of Lions west bank] |
| Mapping Accuracy | Accurate |
| HUC8 Name | Daytona-St. Augustine |
| HUC8 Number | 03080201 |
| HUC10 Name | Tolomato River-Moses Creek Frontal |
| HUC10 Number | 0308020106 |
| HUC12 Name | Tolomato River-Moses Creek Frontal |
| HUC12 Number | 030802010603 |
| Map | |
| Collection Day | 11 |
| Collection Month | 10 |
| Collection Year | 2006 |
| Year Accuracy | Actual |
| Potential Pathway | shipping |
| Status | established |
| Comments | Attached to the running gear of a boat docked in St. Augustine and hauled out in Jacksonville. The boat bottom had been painted in May 2006. See voucher photos. |
| Record Type | Personal communication |
| Freshwater/Marine | Brackish |
| Number Collected | 30 mostly live |
| Size | 32 mm diameter |
| Photo | |