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Megasyllis nipponica
Image courtesy of Erica Keppel, Smithsonian Environmental Research Center
Megasyllis nipponica
Taxonomic Group: Annelids-Polychaetes


Megasyllis nipponica is an epibenthic polychaete which belongs to the Syllidae family. It was first described from Japan and is native to this region. Introduced populations are known from California. This species has been collected from a wide range of intertidal and subtidal habitats, including silt, mud, rocks, cobbles, seaweeds, corals, and tunicates. It has also been found in man-made habitats including docks, pilings and Styrofoam floats. It has wide temperature and salinity tolerances, being found in locations ranging from 13-22°C and 25-35 PSU. It is abundant in its invaded range, but no impacts have been reported.

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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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