Checkered Venus Clam, Lady-in-Waiting Venus
Phylum: Mollusca, Class: Bivalvia, Order: Venerida, Family: Veneridae, Genus: Puberella, Species: Puberella cribraria · Veneridae (Venus Clams) · Bivalve (two-shelled). The specimen shown is a single valve (half-shell) with a heart-shaped/oval profile.
Species
Puberella cribraria (formerly Chione cribraria)
Shell Type
Bivalve (two-shelled). The specimen shown is a single valve (half-shell) with a heart-shaped/oval profile.
Family
Veneridae (Venus Clams)
Size
Approximately 0.75 to 1.0 inch (19-25mm). This is typical for a mature specimen of this species, which rarely exceeds 1.25 inches.
Color & Pattern
Base color of cream to pale gray with distinct reddish-brown rectangular patches or 'checks' along the concentric ribs. The markings are most prominent on the posterior slope. The interior is usually white, sometimes with purple staining near the muscle scars.
Rarity
Common to Uncommon. While widely distributed, they are often overlooked due to their small size or misidentified as juvenile Cross-barred Venus clams.
Habitat
Shallow subtidal marine environments. They prefer sandy or muddy-sand substrates in depths ranging from 0 to 50 meters.
Geographic Range
Western Atlantic: From North Carolina south through Florida, the Gulf of Mexico, and the Caribbean to Brazil.
Description
A sturdy, relatively thick bivalve for its size. The shell features prominent, raised concentric ridges (ribs) that are crossed by much finer radial threads, creating a lattice or 'checkered' appearance. The posterior end is slightly more elongated than the anterior. The valve is moderately inflated with a distinct beak (umbo) curved toward the front.
Key Features
Distinguished by the bold, square-shaped dark spots arranged in radial rows across the concentric ridges. The raised ribs are more leaf-like and flattened compared to the rounded ribs of similar venus clams.
Collector Value
Low to Moderate ($1–$5). It is a charming 'miniature' for specialized bivalve collectors, though its small size and commonality in certain regions keep market prices low. Value increases for matched pairs in 'Gem' condition.
Condition Notes
Good condition. The valve appears intact with crisp sculptural details and vibrant pigmentation. There is minimal evidence of beach-wear (abraded edges) or sun-bleaching. Collectibility Grade: Fine.
Interesting Facts
Venus clams are named after the Roman goddess of love and beauty. Members of this family are known for their strong burrowing foot, which allows them to quickly re-bury themselves if disturbed by waves or predators.
Ecological Role
Suspension feeder that filters plankton and organic detritus from the water column. They serve as a food source for gastropods (like moon snails), crabs, and shorebirds.
Similar Species
Lirophora paphia (King Venus) has much thicker, reflexed ribs. Chamelea cancellata (Cross-barred Venus) has more equalized radial and concentric ribbing and lacks the specific checkered spot pattern.
Beach Finding Tips
Look in the 'wrack line' or amongst shell hash during low tide after a storm. Because they are small and heavy, they often settle in protected pockets of sand behind sandbars or near inlets.