Botrylloides violaceus
Botrylloides violaceus
(an orange sheath tunicate)
Tunicates
Exotic
Collection Info
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15 results for Botrylloides violaceus (an orange sheath tunicate)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
161282 WA Puget Sound1977 17110019 Puget Soundestablished
241637 WAJeffersonPort Hadlock Bay, Port Hadlock Bay Marina, Port Hadlock, by the Old Alcohol Plant.1998 17110019 Puget Soundestablished
241636 WAJeffersonPort Ludlow Bay, Port Ludlow Marina, on the east side of the Olympic Peninsula.1998 17110019 Puget Soundestablished
241638 WAJeffersonPort Townsend Bay, Boat Haven Marina, Port Townsend, on the northeast tip of the Olympic Peninsula.1998 17110019 Puget Soundestablished
241634 WAKingDes Moines Marina, City of Des Moines, Puget Sound.1998 17110019 Puget Soundestablished
241633 WAKingElliott Bay, Elliott Bay Marina, Seattle, north end of Elliott Bay, Seattle1998 17110019 Puget Soundestablished
241107 WAKingElliott Bay, Myrtle Edwards Park2007 17110019 Puget Soundestablished
1896130 WAKingSouth Central Puget Sound, Golden Gardens2024 17110019 Puget Sound 
1897312 WAKingSouth Central Puget Sound, Golden Gardens2024 17110019 Puget Sound 
241635 WAKitsapBurke Bay [Puget Sound], Brownsville Marina, Brownsville, on the Kitsap Peninsula west of Bainbridge Island.1998 17110019 Puget Soundestablished
241631 WAMasonCase Inlet, Fair Harbor Marina, Grapeview, in the northern portion of Case Inlet, in the south sound.1998 17110019 Puget Soundestablished
241628 WAMasonOakland Bay, Port of Shelton Marina, Shelton, at the end of Hammersley Inlet.1998 17110019 Puget Soundestablished
1897313 WAPiercePoint Defiance boat launch2024 17110019 Puget Sound 
241632 WASnohomishPuget Sound at Edmonds Marina in Edmonds (south of the Edmonds-Kingston ferry terminal)1998 17110019 Puget Soundestablished
241161 WAThurstonTotten Inlet, Gallagher Cove, Taylor Shellfish Rafts.2000 17110019 Puget Soundestablished

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

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Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/22/2026].

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