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, rounded fan shape
Species
Chione cancellata
Shell Type
Bivalve (two-shelled), whole shell, rounded fan shape
Family
Veneridae (Venus Clam family)
Size
Approximately 1 inch in length and width, which is average for an adult specimen of this species. Adults typically range from 0.75 to 1.5 inches.
Color & Pattern
Off-white or creamy base color with distinct greenish algae staining on one side and characteristic dark brown markings along the posterior margin. The exterior texture creates a natural checkered pattern.
Rarity
Common, frequently found by beachcombers in its natural range.
Habitat
Shallow subtidal and intertidal zones, typically found buried in sandy or muddy substrates, often in seagrass beds or shallow bays in marine environments.
Geographic Range
Western Atlantic Ocean, ranging from North Carolina through the Caribbean, the Gulf of Mexico, and down to Brazil.
Description
A charming, solid, and rounded triangular bivalve shell characterized by prominent, sharp, raised concentric ridges intersecting with strong radial ribs, creating a distinctive and attractive grid or cross-barred pattern across the exterior surface.
Key Features
The prominent grid-like sculpture formed by the intersection of strong radial ribs and raised concentric lamellae, giving it a distinct cross-barred texture.
Collector Value
Low to moderate commercial value, widely collected by hobbyists and beachcombers rather than specialized high-end collectors. Typically sold in casual souvenir shops for a nominal price.
Condition Notes
Good condition overall, intact single valve with natural coloration largely preserved, though exhibiting some localized green staining and slight weathering. Collectibility grade: Good.
Interesting Facts
Like many venus clams, Chione cancellata plays an active burrowing role in the sediment using its muscular foot and feeds by filtering microscopic plankton from the surrounding water column.
Ecological Role
Acts as an important filter feeder in coastal marine ecosystems, helping to clear water, while serving as a crucial food source for various bottom-feeding fish, crabs, and carnivorous marine snails.
Similar Species
Chione intapurpurea (Purple-edging Venus), which generally features a deeper purple interior and slightly different rib proportions.
Beach Finding Tips
Look along sandy or shelly beaches in the southeastern United States, the Gulf Coast, and the Caribbean, especially following storm events or at low tide in shallow wrack lines.