Specimen Information

Didemnum vexillum
Didemnum vexillum
(a colonial sea squirt)
Tunicates
Exotic

Specimen ID252628
GroupTunicates
GenusDidemnum
Speciesvexillum
Common Namea colonial sea squirt
StateME
CountyWashington
LocalityCobscook Bay near Eastport
Mapping AccuracyAccurate
HUC8 NamePassamaquoddy Bay-Bay of Fundy
HUC8 Number01050004
HUC10 NameCobscook Bay-Frontal Passamaquoddy Bay
HUC10 Number0105000406
HUC12 NameCobscook Bay
HUC12 Number010500040606
Map
Collection Day10
Collection Month9
Collection Year2006
Year AccuracyActual
Potential Pathwayunknown
Statusestablished
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.
Comments0.5-1.5 ft depth; on wood pier and floating dock
Record TypeLiterature
Freshwater/MarineMarine


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Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/2/2026].

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