Cross-barred Venus Clam
Phylum: Mollusca, Class: Bivalvia, Order: Venerida, Family: Veneridae, Genus: Chione, Species: Chione cancellata · Veneridae (Venus Clam family) · Bivalve (two-shelled clam), whole shell, rounded triangular or subcordate shape
Species
Chione cancellata
Shell Type
Bivalve (two-shelled clam), whole shell, rounded triangular or subcordate shape
Family
Veneridae (Venus Clam family)
Size
Approximately 1 to 1.5 inches in length. This is an average and typical size for adult specimens of this species, which normally range from 0.75 to 2 inches.
Color & Pattern
Whitish to cream base color with distinct brownish-purple or reddish-brown zig-zag markings, blotches, or concentric bands. The interior is typically white, sometimes tinged with purple. The colors appear natural and slightly weathered from beach tumbling.
Rarity
Very Common, frequently washed up on beaches throughout its native range.
Habitat
Found primarily in shallow subtidal waters and intertidal zones, buried just beneath the surface in sandy, muddy-sand, or seagrass substrates, often in protected bays and lagoons. Marine species.
Geographic Range
Western Atlantic Ocean, extending from North Carolina through Florida, the Gulf of Mexico, the Caribbean, and down to Brazil.
Description
A sturdy, thick-shelled bivalve characterized by its distinct grid-like or cancellate sculpture. The surface features prominent, elevated concentric ridges that cross over fine, radiating ribs, creating a waffle-like texture. The margin of the shell is finely crenulated, and the overall shape is robust and rounded-triangular.
Key Features
The prominent, sharply elevated concentric lamellae intersecting with radial ribbing to form a distinct grid (cancellate) pattern, combined with a crenulated inner shell margin and a strong hinge plate with cardinal teeth.
Collector Value
Low to moderate commercial or monetary value due to its abundance, but highly prized by beginner and intermediate shell collectors for its intricate sculptural texture and attractive patterning. Commonly found in shell shops and starter collections.
Condition Notes
Good to Fine condition. The shell is structurally intact with minimal edge wear, retaining a good portion of its original color pattern and clear sculptural grid texture, showing typical signs of gentle beach tumbling.
Interesting Facts
Venus clams get their name from Venus, the Roman goddess of love and beauty, traditionally associated with seashells. Like many bivalves, Chione cancellata plays an active role in benthic bioturbation by filtering water and stabilizing sediment.
Ecological Role
Acts as a primary filter feeder, helping to clear suspended organic matter from the water column. Serves as a vital food source for bottom-feeding marine life including fish, rays, and carnivorous gastropods. Not currently endangered or regulated.
Similar Species
Chione elevata (Florida Cross-barred Venus) and Chione intapurpurea (Purple-mouth Venus). Chione cancellata is distinguished by its particularly crisp, evenly spaced grid pattern and flattened concentric ribs.
Beach Finding Tips
Look along high tide wrack lines on sandy or shelly beaches in Florida and the Caribbean following storms or rough surf. Sifting through wet sand in the shallows at low tide can also yield fresh, intact specimens.