| Specimen ID | 1418949 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | MD |
| County | Baltimore |
| Locality | Gunpowder Falls mainstem, near Bush Cabin Run |
| Mapping Accuracy | Accurate |
| HUC8 Name | Gunpowder-Patapsco |
| HUC8 Number | 02060003 |
| HUC10 Name | Middle Gunpowder Falls |
| HUC10 Number | 0206000304 |
| HUC12 Name | Piney Creek-Gunpowder Falls |
| HUC12 Number | 020600030402 |
| Map | |
| Collection Month | 9 |
| Collection Year | 2017 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | established |
| Reference 1 |
| Ref. Number: | 30628 |
| Author: | Maryland Department of Natural Resources. |
| Date: | 2017 |
| Title: | Aquatic invasive species confirmed in Gunpowder River. |
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| Reference 2 |
| Ref. Number: | 30635 |
| Author: | Dance, S. |
| Date: | 2017 |
| Title: | Invasive New Zealand mud snails found in Gunpowder River |
| Publisher: | The Baltimore Sun |
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| Record Type | Literature |
| Verifier | Maryland Dept. of Natural Resources |
| Freshwater/Marine | Freshwater |
| Number Collected | hundreds |
