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Arctica islandica
Image courtesy of © Hans Hillewaert via Wikimedia Commons CC-BY-SA-3.0 License
Arctica islandica
Taxonomic Group: Mollusks-Bivalves
Common name: OCEAN QUAHOG


Arctica islandica, commonly known as the Ocean Quahog, is a large clam with an almost circular shell. The shell is covered with a brown-to-black periostracum, which is often brittle and peeling. It is native to cold waters of the North Atlantic, spanning from North Carolina to Labrador, Iceland, the White Sea, Russia and Spain. Living animals have not been found outside its native range, but shells have been found on shores in California and Oregon. It inhabits muddy to sandy bottoms from the shallow subtidal to 150 m.

*Beyond its native range, this species is not currently established in North American waters.

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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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