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Uromunna sp. A
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Uromunna sp. A
Taxonomic Group: Crustaceans-Isopods


Uromunna sp. A is a small (1-2 mm) isopod found in brackish-to-fresh waters in the San Francisco estuary, California. The true identity of this species is unknown and therefore so is its native range, but its relatively recent discovery (1989) suggests that it is non-native to California. Isopods of the genus Uromunna are found in estuarine, shallow, and deep marine habitats, often associated with algae, vegetation, fauna, or rocks. There are no ecological or economic impacts 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
Smithsonian Environmental Research Center

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