Specimen Information

Botrylloides violaceus
Botrylloides violaceus
(an orange sheath tunicate)
Tunicates
Exotic

Specimen ID241625
GroupTunicates
GenusBotrylloides
Speciesviolaceus
Common Namean orange sheath tunicate
StateWA
CountySkagit
LocalitySamish Bay, small float in Samish River near Edison.
Mapping AccuracyAccurate
HUC8 NameStrait of Georgia
HUC8 Number17110002
HUC10 NameSamish River
HUC10 Number1711000202
HUC12 NameLower Samish River
HUC12 Number171100020204
Map
Collection Day11
Collection Month9
Collection Year1998
Year AccuracyActual
Potential Pathwayhitch hiker with oysters | shipping hull fouling
Statusestablished
Reference 1
Ref. Number:14791
Author:Cohen, A., C. Mills, H. Berry, M. Wonham, B. Bingham, B. Bookheim, J. Carlton, J. Chapman, J. Cordell, L. Harris, T. Klinger, A. Kohn, C. Lambert, G. Lambert, K. Li, D. Secord, and J. Toft.
Date:1998
Title:A rapid assessment survey of non-indigenous species in the shallow waters of Puget Sound. Report of the Puget Sound Expedition.
Publisher:Washington State Department of Natural Resources, Olympia, WA.
Pages:37 pp
Record TypeLiterature
Freshwater/MarineBrackish-Freshwater


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Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/21/2026].

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