Invasion
Invasion Description
1st Record: Peake's Island/ME/Casco Bay (1873, Ganon 1887)
Geographic Extent
Peake's Island/ME/Casco Bay (1873, Ganong 1887); ME/Casco Bay (USNM 224849, US National Museum of Natural History)
Vectors
| Level | Vector |
|---|---|
| Alternate | Natural Dispersal |
| Alternate | Dry Ballast |
| Alternate | Hull Fouling |