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Nassarius fraterculus
Image courtesy of Femorale through the Encyclopedia of Life and the creative commons CC BY-NC license.
Nassarius fraterculus
Taxonomic Group: Mollusks-Gastropods


Nassarius fraterculus is commonly known as the Japanese Nassa. It is a small marine snail native to the Northwest Pacific. It has been introduced to Western North America (Washington and British Columbia) with shipments of Pacific Oysters (Crassostrea gigas) from Japan. It occurs on rocky and gravelly shores in its native habitat, but is also known from mudflats, eelgrass and oyster habitats. No impacts have been reported for this species.

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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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