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Leucothoe nagatai
Image courtesy of Hans Hillewaert and Wikimedia Commons (CC-BY-SA-4.0). Please note that the image is of Leucothoe incisa, not Leucothoe nagatai.
Leucothoe nagatai
Taxonomic Group: Crustaceans-Amphipods


Leucothoe nagatai is a small to medium sized amphipod, which lives commensally inside tunicates and sponges. It was described from Japan and is native to the east and west coasts, south to Korea. It has been introduced to Southern California, ranging from Santa Barbara Harbor to San Diego Bay. It has been found inside native and introduced tunicates and sponges. Its relation to its host is unknown, but could be commensal or parasitic.

* 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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