Specimen Information

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

Specimen ID252813
GroupTunicates
GenusDidemnum
Speciesvexillum
Common Namea colonial sea squirt
StateCA
CountySan Luis Obispo
LocalityPacific Ocean at Port San Luis
Mapping AccuracyAccurate
HUC8 NameCentral Coastal
HUC8 Number18060006
HUC10 NamePismo Creek-Frontal Pacific Ocean
HUC10 Number1806000607
HUC12 NameMeadow Creek-Frontal Pacific Ocean
HUC12 Number180600060705
Map
Collection Year2003
Year AccuracyActual
Potential Pathwayunknown
Statusestablished
Reference 1
Ref. Number:24102
Author:Cohen, A.N.
Date:2011
Title:The Exotics Guide: Non-native Marine Species of the North American Pacific Coast.
Publisher:Center for Research on Aquatic Bioinvasions
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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