Taxonomy Search:

Rangia cuneata
Image courtesy of Paul Fofonoff, Smithsonian Environmental Research Center, Maryland
Rangia cuneata
Taxonomic Group: Mollusks-Bivalves
Common name: GULF WEDGE CLAM


Rangia cuneata is commonly known as the Gulf Wedge Clam, the Atlantic Rangia, and the Common Rangia. Its native range extends throughout the Gulf of Mexico from Campeche, Mexico to the southern tip of Florida. Introduced populations are established on the East coast of North America from North Carolina to the Hudson River, New York. There is some discussion about whether these represent a human mediated introduction or the resurgence of small, previously unnoticed relict populations. Introduced populations are also established in Belgium and the Baltic Sea. This species burrows in the muddy and sandy bottoms of estuaries, most commonly at salinities of 0-10 PSU, although salinities of 2.5-14 PSU are required for reproduction. In some locations, R. cuneata is a fouling nuisance in pipes and water intake systems.

This is some default tab content, embedded directly inside this space and not via Ajax. It can be shown when no tabs are automatically selected, or associated with a certain tab, in this case, the first tab.


Fofonoff PW, Ruiz GM, Steves B, Simkanin C, & Carlton JT (2018)
National Exotic Marine and Estuarine Species Information System.
Access Date:

Marine Invasions Lab
Smithsonian Environmental Research Center

P.O. Box 28
647 Contees Wharf Road
Edgewater, MD 21037-0028 Tel: 443 482 2200
Fax: 443 482 2380

Databases Overview| Chesapeake Bay | National Database |