Cross-barred Venus Clam
Phylum: Mollusca, Class: Bivalvia, Order: Venerida, Family: Veneridae, Genus: Chione, Species: Chione cancellata · Veneridae (Venus Clam family) · Bivalve (two-shelled), whole shell, fan or triangular-oval shape
Species
Chione cancellata
Shell Type
Bivalve (two-shelled), whole shell, fan or triangular-oval shape
Family
Veneridae (Venus Clam family)
Size
Approximately 0.75 to 1 inch in length, which is average for this species. Adults typically range from 0.75 to 1.5 inches.
Color & Pattern
Off-white to grayish base with subtle brownish or purplish radial bands and a weathered, sun-bleached appearance. The interior is typically white with a hint of purple near the posterior margin.
Rarity
Very Common
Habitat
Shallow subtidal to intertidal zones, living buried in sand, muddy sand, or seagrass beds in marine environments.
Geographic Range
Western Atlantic from North Carolina through Florida, the Gulf of Mexico, the Caribbean, and down to Brazil.
Description
A sturdy, compact bivalve featuring a distinct grid-like or cancellate sculpture formed by prominent concentric ridges intersecting with strong radial ribs. The margin is finely crenulated, and the beak (umbo) is prominent and turned forward.
Key Features
Distinctive grid-like (cancellate) surface pattern created by heavy concentric lamellae crossing radial ribs, triangular-oval outline, and a finely toothed inner margin.
Collector Value
Low to moderate commercial value; commonly found by beachcombers and frequently included in beginner collections or shell crafts, worth less than a dollar individually.
Condition Notes
Fair to Good condition; the exterior shows some wear and sun-bleaching with slight erosion around the umbo, but the characteristic grid pattern remains well-defined.
Interesting Facts
Venus clams are filter feeders that use short siphons to draw in and expel water, playing a crucial role in water filtration in coastal marine ecosystems.
Ecological Role
Serves as an important food source for bottom-feeding fish, crabs, and carnivorous sea snails. It contributes to benthic bioturbation and coastal water filtration.
Similar Species
Chione elevata (Florida Venus), which is very similar but generally has fewer and coarser radial ribs.
Beach Finding Tips
Look along high-tide shell lines on sandy Gulf Coast beaches, especially after storms or strong winds. Sifting through fine shell gravel often yields complete valves.
Notes
Surfside Beach Texas