Northern Quahog Mercenaria mercenaria    Synonyms: Hard Clam, Hard-shell Clam, Hardshell Clam.
Kingdom Animalia   >   Phylum Mollusca   >   Class Bivalvia   >   Order Veneroida   >   Family Veneridae   >   Genus Mercenaria   

Where to find:

Note that shells of this species can turn up outside of appropriate habitat due to its use as a fill material, discarded from clam bakes, or even found in shell middens due to regional trade in pre-colonial times.

There are 26 records in the project database.

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Northern Quahog in Baltimore Co., Maryland (9/1/2017). Photo by Bill Harms. (MBP list)

A Northern Quahog found on Assateague Island in Worcester Co., Maryland (11/12/2016). It was part of a collection dropped by gulls. Determined by Peter Osenton. Photo by Bill Hubick. (MBP list)

A Northern Quahog found on Assateague Island in Worcester Co., Maryland (11/12/2016). It was part of a collection dropped by gulls. Determined by Peter Osenton. Photo by Bill Hubick. (MBP list)

A Northern Quahog found on Assateague Island in Worcester Co., Maryland (11/12/2016). It was part of a collection dropped by gulls. Determined by Peter Osenton. Photo by Bill Hubick. (MBP list)

Northern Quahog in Worcester Co., Maryland (9/25/2020). (c) blitzen1986, some rights reserved (CC BY-NC). Photo by blitzen1986 via iNaturalist. (MBP list)

Northern Quahog in Worcester Co., Maryland (3/20/2019). (c) Laura & Thomas Marlowe, some rights reserved (CC BY-NC). Photo by Laura & Thomas Marlowe via iNaturalist. (MBP list)

Northern Quahog in Worcester Co., Maryland (10/10/2022). (c) J Mollenhauer, some rights reserved (CC BY-NC). Photo by J Mollenhauer via iNaturalist. (MBP list)

Northern Quahog in Worcester Co., Maryland (10/10/2022). (c) J Mollenhauer, some rights reserved (CC BY-NC). Photo by J Mollenhauer via iNaturalist. (MBP list)

Northern Quahog in Worcester Co., Maryland (7/6/2013). (c) cukibapa, some rights reserved (CC BY-NC). Photo by cukibapa via iNaturalist. (MBP list)

A Northern Quahog found in Anne Arundel Co., Maryland (1/2/2017). Verified by Peter Osenton. Photo by Bill Hubick. (MBP list)

A juvenile Northern Quahog found in the York River at the mouth of the Perrin River, Gloucester County, Virginia (6/4/2013). Photo by Natalia Agudelo. (MBP list)

Northern Quahog in Worcester Co., Maryland (11/21/2020). (c) bamato1234, some rights reserved (CC BY-NC). Photo by bamato1234 via iNaturalist. (MBP list)

Northern Quahog in Worcester Co., Maryland (9/25/2019). (c) mcbpliz, some rights reserved (CC BY-NC). Photo by mcbpliz via iNaturalist. (MBP list)


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