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 valve, fan to oval shape
Species
Chione cancellata
Shell Type
Bivalve (two-shelled), whole valve, fan to oval 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
Base color is chalky white to off-white with characteristic contrasting brown or reddish-brown triangular blotches and zig-zag markings near the posterior margin. The colors appear mostly natural with slight sun-bleaching common in beach-found specimens.
Rarity
Common
Habitat
Found in shallow marine waters, primarily in intertidal and subtidal zones down to about 30 meters. Prefers sandy or muddy sand substrates, often buried just beneath the surface in seagrass beds or shallow bays.
Geographic Range
Western Atlantic Ocean, ranging from North Carolina through the Caribbean, Gulf of Mexico, and down to Brazil.
Description
A sturdy, thick-shelled bivalve featuring a distinct grid-like or cancellated sculpture formed by prominent radial ribs intersecting with concentric ridges. The margin is finely crenulated, and the exterior showcases attractive brownish flame patterns against a pale white background.
Key Features
Distinctive grid-like (cancellate) surface texture created by strong, raised concentric lamellae crossing over radial ribs, combined with a triangular shape and brownish chevron or blotch markings.
Collector Value
Low to moderate commercial value. While very popular among casual beachcombers and beginner shell collectors due to its striking pattern and texture, it is too common to command high prices among advanced collectors. Typically valued at under a dollar to a few dollars.
Condition Notes
The specimen is a single intact valve in good overall condition. Showing minor signs of wear along the edges and slight fading of the color patterns, placing it in 'Good' to 'Fine' collectibility grade.
Interesting Facts
Like other members of the Veneridae family, the Cross-barred Venus is a burrowing bivalve that uses a muscular foot to dig into the sediment. Indigenous peoples historically used various small venus clams for tools and ornaments.
Ecological Role
Acts as an important link in the marine food web, serving as a prey item for carnivorous snails, rays, and bottom-feeding fish. As a suspension feeder, it helps filter organic particles from the water column.
Similar Species
Chione elevata (Florida Cross-barred Venus), which is very similar but generally found in deeper waters and possesses slightly different ribbing characteristics.
Beach Finding Tips
Look along sandy and shell-hash beaches in Florida, the Gulf Coast, and the Caribbean, especially after storms or during low tide. Sifting through fine shell drift near seagrass beds often yields complete valves.