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-like rounded shape
Species
Chione cancellata
Shell Type
Bivalve (two-shelled), whole shell, fan-like rounded shape
Family
Veneridae (Venus Clam family)
Size
Approximately 1 inch in length and width, which is average for this species. Adults typically range from 0.75 to 1.5 inches.
Color & Pattern
Off-white to creamy base color with subtle reddish-brown or pinkish streaks and radial bands. The coloration appears slightly sun-bleached but retains natural patterning. The interior is not clearly visible in the image but is typically white with a purple flush near the posterior margin.
Rarity
Common, frequently found while beachcombing along suitable coastlines in its range.
Habitat
Found in shallow subtidal zones and intertidal flats, typically burrowing in sandy or muddy substrates, often in seagrass beds or shallow coastal bays in marine environments.
Geographic Range
Western Atlantic Ocean, ranging from North Carolina through Florida, the Gulf of Mexico, the Caribbean Sea, and down to Brazil.
Description
A charming and sturdy small bivalve characterized by its distinct grid-like or latticed sculpture. The exterior features prominent, raised concentric ridges intersecting with strong radial ribs, creating the signature cross-barred pattern that gives this species its common name. The margin is finely crenulated, matching the external sculpture.
Key Features
The deeply reticulated or cross-barred surface formed by the crossing of heavy concentric lamellae and radial ribs, combined with a robust, rounded-triangular shell shape and a deeply indented lunule.
Collector Value
Low to moderate commercial value as a single specimen, though it is a staple addition for beginner and intermediate shell collectors building a representative bivalve or regional collection. Typically sold very inexpensively in shell shops.
Condition Notes
The shell appears to be a whole, intact single valve in good condition with minor natural wear and slight sun-bleaching. Collectibility grade is Good.
Interesting Facts
Venus clams get their name from Venus, the Roman goddess of love and beauty, as some shells in this family were traditionally associated with her mythological birth from the sea. They are filter feeders that use siphons to draw in and expel water.
Ecological Role
Serves as an important prey item for various marine predators including carnivorous snails, crabs, and bottom-feeding fish. As filter feeders, they help clear particulate matter from the water column.
Similar Species
Chione elevata (Restored Venus) and Chione intuspurpurea (Short Venus), which can be distinguished by subtle differences in the spacing of the concentric ridges and the profile of the posterior slope.
Beach Finding Tips
Look along sandy or shelly ocean beaches and bay shores, particularly at low tide after a storm. Sifting through shell hash and wrack lines where small bivalves concentrate is often productive.