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Victorella pavida
Image courtesy of Leslie Harris, Natural History Museum of Los Angeles County, CA.
Victorella pavida
Taxonomic Group: Bryozoans


Victorella pavida is an erect, un-calcified bryozoan, found in fresh and brackish waters. It was first described from London, UK in 1870 and has subsequently been reported from a number of locations, including various Northern European ports, the Mediterranean, Black and Caspian Seas, Israel, India, Thailand, Japan, Uruguay, Brazil, California, and the Atlantic and Gulf Coasts of North America. The taxonomy of this species is difficult to discern in some contexts and the history of its spread around the globe is unknown. We consider it as being introduced to Northern Europe and the Pacific Coast of North America. It has been found attached to vegetation, woody debris, shells, jetties, pilings and boats. Victorella pavida fouls power plant intake pipes and boats' hulls and can compete for space with other sessile invertebrate species, however, its variable shape and size can provide habitat for small motile invertebrates.

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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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