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Molgula citrina
Image courtesy of Gretchen Lambert, A) M. citrina specimens with clean tunics and B) M. citrina with hairier and somewhat dirty tunics.
Molgula citrina
Taxonomic Group: Tunicates


Molgula citrina is a small, globular shaped, solitary tunicate. It was described from the British Isles and its range extends throughout the North Atlantic, including North America and Europe. In 2008, it was reported from Alaska and was subsequently found as introduced in Oregon and Northern California. It may have traversed Arctic waters as biofouling in a vessel's sea-chest, which is heated to protect against engine freezing. No ecological or economic impacts have been reported for this species in introduced locations.

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Fofonoff PW, Ruiz GM, Steves B, Simkanin C, & Carlton JT (2018)
National Exotic Marine and Estuarine Species Information System.
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Marine Invasions Lab
Smithsonian Environmental Research Center

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