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Rangia cuneata   (Sowerby I, 1831)

common rangia

Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Rangia cuneata   AquaMaps   Data sources: GBIF OBIS
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Image of Rangia cuneata (common rangia)
Picture by FAO

Classification Common names | Synonyms | CoL | ITIS | WoRMS

Bivalvia | Veneroida | Mactridae

Main reference References | Biblio | Coordinator | Collaborators

Carpenter, K.E. (ed.). 2002. (Ref. 271)

Size / Weight / Age

Max length : 5.0 cm TL male/unsexed; (Ref. 271); max. reported age: 10 years (Ref. 8702)


Benthic; brackish; depth range 0 - 124 m (Ref. 104339), usually 0 - 2 m (Ref. 104339)

Climate / Range

Tropical; ? - 15°C (Ref. 104336); 31°N - 17°N, 98°W - 81°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Western Atlantic: The Gulf of Mexico from Campeche to northwest Florida. Introduced to the Atlantic coast of North America (east coast of Florida to Chesapeake Bay and to the Hudson River). Northeast Atlantic: Introduced in Belgium and Poland. Tropical to temperate.

Short description

Shell oval, heavy, very thick. Hinge with lateral teeth transversally striated. Pallial sinus reduced. Umbones anterior, pointing inward and in anterior direction. Periostracum strong and smooth. Colour: externally dirt white, internally glossy white with slight blue-grey tinge; periostracum grey-brown (Ref. 271).

Biology     Glossary (e.g. epibenthic)

It has a total length of 5 cm (Ref. 271). Maximum depth range from Ref. 104365. Subtidal (Ref. 104487). It is found infaunal in sandy mud, in very low salinity brackish water (Ref. 271). Habitats have high water turbidity. Found in soft substrates which are a mixture of sand, mud and vegetation (Ref. 104487). In salt marsh (Ref. 104365). A non-selective filter-feeder which turns substantial quantities of plant detritus and phytoplankton into clam biomass. Also obtains nutrition from sediments via direct ingestion or by feeding on bacteria. Predators include fish, crabs, gastropods and ducks (Ref. 104240). Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam (Ref. 833). Spawning is continuous throughout the year (Ref. 104339).

IUCN Red List Status (Ref. 114614)


CITES status (Ref. 94142)

Not Evaluated

Threat to humans

Human uses

Fisheries: commercial
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Internet sources

BHL | BOLD Systems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | ispecies | PubMed | Scirus | Sea Around Us | FishBase | Tree of Life | uBio | uBio RSS | Wikipedia (Go, Search) | Zoological Record

Estimation of some characteristics with mathematical models

Price category (Ref. 80766)