Specimen Information

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

Specimen ID252643
GroupTunicates
GenusDidemnum
Speciesvexillum
Common Namea colonial sea squirt
StateNY
CountySuffolk
LocalityShinnecock Bay, Long Island, at a dock attached to Old Ponquogue Bridge
Mapping AccuracyAccurate
HUC8 NameSouthern Long Island
HUC8 Number02030202
HUC10 NameShinnecock Bay-Atlantic Ocean
HUC10 Number0203020206
HUC12 NameQuantuck Bay-Shinnecock Bay
HUC12 Number020302020603
Map
Collection Day4
Collection Month12
Collection Year2004
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.
Comments0.1 ft depth; on floating dock
Record TypeLiterature
Freshwater/MarineMarine


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Citation information: U.S. Geological Survey. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/9/2025].

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