Specimen Information

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

Specimen ID241704
GroupTunicates
GenusBotrylloides
Speciesviolaceus
Common Namean orange sheath tunicate
StateWA
CountySan Juan
LocalityOrcas Island (most harbors)
Mapping AccuracyApproximate
HUC8 NameSan Juan Islands
HUC8 Number17110003
Map
Collection Day14
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/MarineMarine


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Citation information: U.S. Geological Survey. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/24/2025].

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