Sunray Venus Clam (Alternate names: Sunray Venus)
Phylum: Mollusca, Class: Bivalvia, Order: Venerida, Family: Veneridae, Genus: Macrocallista, Species: Macrocallista maculata · Veneridae (Venus clam family) · Bivalve (two-shelled). Whole single valve. Oval-ovate shape.
Species
Macrocallista maculata
Shell Type
Bivalve (two-shelled). Whole single valve. Oval-ovate shape.
Family
Veneridae (Venus clam family)
Size
Approximately 2 inches in length, which is slightly smaller than average. Adults typically range from 2.5 to 4 inches.
Color & Pattern
The exterior features a glossy, cream to pale pinkish-beige base color adorned with distinct reddish-brown or orange-brown spots and interrupted radial bands or blotches. Colors are natural and well-preserved with a shiny porcelain-like luster.
Rarity
Common, though finding a single complete, high-luster valve in good condition on North Carolina beaches is a pleasant discovery.
Habitat
Found buried in clean sand or fine shell gravel in shallow subtidal waters, typically ranging from the low intertidal zone down to about 50 feet.
Geographic Range
Western Atlantic from North Carolina south through Florida, the Gulf of Mexico, the Caribbean, and down to Brazil.
Description
A smooth, solid, and streamlined bivalve shell with an elongated oval shape. The surface is polished and glossy with very fine concentric growth lines. The umbo is slightly prominent and located anteriorly. The coloration features a charming pattern of warm reddish-brown dots and flames radiating across a light background.
Key Features
Smooth, highly polished exterior surface, elongated oval shape, and distinctive pattern of reddish-brown spots and broken radial bands on a light beige or pinkish background.
Collector Value
Moderately sought after due to its striking glossy pattern and pleasing shape, though common enough that individual valves have low monetary value (usually a few dollars). Highly prized by casual beachcombers for its beauty.
Condition Notes
Good to Fine condition single valve. Intact margins with minimal wear on the umbo and a smooth, glossy exterior. No major chips or structural breaks. Collectibility grade is Fine.
Interesting Facts
Venus clams get their name from Venus, the Roman goddess of love, as many members of this family are considered among the most attractive marine shells. They are active burrowers using a muscular foot.
Ecological Role
Serves as a filter feeder, helping to clear organic particles from the water column. Acts as an important food source for marine predators such as rays, large gastropods, and carnivorous crabs.
Similar Species
Sunray Venus (Macrocallista nimbosa), which is larger and features distinct reddish-brown radial rays rather than spots and blotches.
Beach Finding Tips
Look along sandy outer beaches and near inlets in North Carolina, especially after winter storms or heavy wave action that disturbs offshore sandbars.
Notes
NC beach