| Specimen ID | 263829 |
| Group | Crustaceans-Crabs |
| Genus | Hemigrapsus |
| Species | sanguineus |
| Common Name | Asian shore crab |
| State | ME |
| County | Cumberland |
| Locality | Atlantic Ocean, Casco Bay off Portland at Peaks Island under the ferry bridge on Welch St. |
| Mapping Accuracy | Accurate |
| HUC8 Name | Presumpscot |
| HUC8 Number | 01060001 |
| HUC10 Name | Casco Bay |
| HUC10 Number | 0106000106 |
| HUC12 Name | Casco Bay-Atlantic Ocean |
| HUC12 Number | 010600010605 |
| Map | |
| Collection Day | 30 |
| Collection Month | 7 |
| Collection Year | 2009 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | established |
| Comments | See voucher photos. |
| Record Type | NAS sighting report |
| Freshwater/Marine | Marine |
| Number Collected | 1 |
| Number of Breeding Females | 1 |
| Photo | |