| Specimen ID | 252630 |
| Group | Tunicates |
| Genus | Didemnum |
| Species | vexillum |
| Common Name | a colonial sea squirt |
| State | MA |
| County | Suffolk |
| Locality | Boston Harbor [Massachusetts Bay, Atlantic Ocean] in Winthrop |
| Mapping Accuracy | Accurate |
| HUC8 Name | Charles |
| HUC8 Number | 01090001 |
| HUC10 Name | Boston Harbor-Massachusetts Bay |
| HUC10 Number | 0109000110 |
| HUC12 Name | Boston Harbor |
| HUC12 Number | 010900011005 |
| Map | |
| Collection Day | 8 |
| Collection Month | 12 |
| Collection Year | 2006 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | established |
| Reference 1 |
| Ref. Number: | 24162 |
| Author: | USGS - Woods Hole Science Center. |
| Date: | 2008 |
| Title: | Marine Nuisance Species, Didemnum, a colonial tunicate; ascidian; sea squirt - New England Coast Location Table. |
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| Comments | On wood pier pilings |
| Record Type | Literature |
| Freshwater/Marine | Marine |
