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Orchestia gammarellus
Image courtesy of Auguste Le Roux via Wikimedia Commons (CC BY-SA 3.0)
Orchestia gammarellus
Taxonomic Group: Crustaceans-Amphipods


Orchestia gammarellus is a semi-terrestrial amphipod, commonly known as a beach-flea or sand-hopper. It is native to Europe where its range extends from Norway to the Mediterranean as well as the Azores. Madeira, and the Canary Islands. It is introduced in the Western Atlantic, were it extends from Newfoundland to Maine. Other introduced populations are known from Iceland, Chile, Argentina, and South Africa. It inhabits the upper intertidal drift line of rocky shores, including areas of washed-up seaweed and seagrasses, and is sometimes found in estuaries or marshes. No economic or ecological impacts have been reported for this species.

* Content for this species is based on the literature and peer review is pending - if you have comments or feedback please contact Paul Fofonoff at

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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
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