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Limnoria tripunctata
Image courtesy of Marilyn Schotte and the CC BY-NC-SA license.
Limnoria tripunctata
Taxonomic Group: Crustaceans-Isopods
Common name: GRIBBLE


Limnoria tripunctata is a small marine wood-boring isopod, commonly known as a gribble. It is a cosmopolitan species, found throughout warmer waters of the world, and its native range is unknown. Despite this, introduced populations are known from Hawaii, the West coast of North America, the United Kingdom, South Africa, and New Zealand. This species was originally lumped with L. lignorum, a cold-water, high-latitude species, until they were separated by Menzies (1957). It bores into wooden pilings, wharfs, docks and boat hulls, causing economic damage to eroded surfaces.

* 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
Smithsonian Environmental Research Center

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