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, ovate to triangular shape
Species
Chione cancellata
Shell Type
Bivalve (two-shelled), whole shell, ovate to triangular shape
Family
Veneridae (Venus Clam family)
Size
Approximately 1 inch in length, which is average for this species. Adults typically range from 0.75 to 1.5 inches.
Color & Pattern
Cream to light brown base color with darker brown or reddish-brown zig-zag markings, radial rays, and color zones. The interior is typically white with a hint of purple near the posterior margin. Colors appear fresh and natural.
Rarity
Common, frequently found by beachcombers in its native range.
Habitat
Shallow subtidal to intertidal zones, usually found buried just beneath the surface in sandy bottoms, muddy sand, or seagrass beds.
Geographic Range
Western Atlantic from North Carolina through the Caribbean, the Gulf of Mexico, and down to Brazil.
Description
A solid, heavy, inflated bivalve featuring a distinct grid-like or cancellated sculpture formed by prominent concentric ridges intersecting with strong radial ribs. The margin is finely crenulated, and the lunule is well-defined.
Key Features
Distinctive grid-like (cancellate) surface texture created by prominent concentric lamellae intersecting radial ribs, combined with a heart-shaped lunule and finely crenulated inner margins.
Collector Value
Low to moderate commercial value, but highly valued by amateur beachcombers and shell enthusiasts for its pleasing geometric pattern and texture.
Condition Notes
Good to Fine condition. The shell is intact with strong structural integrity, well-preserved natural coloration, and minimal wear on the exterior ridges.
Interesting Facts
Venus clams are filter feeders that use siphons to draw in water and extract microscopic algae and detritus. Their intricate shell sculpture helps anchor them securely in shifting sand environments.
Ecological Role
Serves as an important prey species for various marine predators including carnivorous snails, rays, and bottom-feeding fish. They also contribute to benthic bioturbation and nutrient cycling through filter feeding.
Similar Species
Chione intidula and other Chione species. Distinguished primarily by the specific spacing, prominence, and sharpness of the concentric lamellae and radial ribs.
Beach Finding Tips
Look along sandy beaches in the southeastern United States, Gulf Coast, and Caribbean after storms or at low tide, particularly near seagrass beds or where shell hash accumulates.