Common Jingle Shell, Gold Shell, Mermaid's Tear
Phylum: Mollusca, Class: Bivalva, Order: Ostreida, Family: Anomiidae, Genus: Anomia, Species: Anomia simplex · Anomiidae (Jingle Shell family) · Bivalve (single upper/left valve displayed), sub-circular to irregular translucent shell
Species
Anomia simplex
Shell Type
Bivalve (single upper/left valve displayed), sub-circular to irregular translucent shell
Family
Anomiidae (Jingle Shell family)
Size
Approximately 1 inch (2.5 cm) in length, which falls within the typical adult size range of 1 to 2 inches for this species.
Color & Pattern
Vibrant translucent yellow-orange to golden amber coloration with characteristic pearlescent/nacreous sheen. Surface shows fine concentric growth lines and minor wave-worn calcification near the upper margin.
Rarity
Very Common
Habitat
Marine, intertidal to shallow subtidal waters attached to hard substrates like rocks, pilings, dead shells, and boat hulls via a calcified byssus.
Geographic Range
Western Atlantic from Atlantic Canada south to Florida, the Gulf of Mexico, the Caribbean, and Brazil. Very typical finding on North Carolina beaches such as Oak Island.
Description
A classic specimen of the upper (left) valve of the Common Jingle Shell, displaying a brilliant warm golden-orange hue and signature translucent, mica-like luster. The shell form is thin, paper-like yet surprisingly durable, conforming to the contours of the surface it grew upon.
Key Features
Translucent thin valve with pearlescent inner surface; lack of dynamic hinge teeth; irregularity in shape reflecting substrate shape; upper valve convex and brightly colored while the lower valve (not shown) is thin, flat, and perforated by a calcified byssal plug hole.
Collector Value
Minimal monetary value ($1 - $3) due to abundance, but highly popular among casual beachcombers and shell crafters for its unique translucent glow and vibrant orange-gold tone.
Condition Notes
Good beach-worn condition. Features excellent, rich yellow-orange color retention and strong luster, with slight edge wear and surface weathering expected from surf exposure.
Interesting Facts
The name 'Jingle Shell' comes from the sound made when several of these shells are strung together on a cord or shaken in a jar, creating a gentle ringing noise. Coastal craft workers frequently use them in wind chimes, jewelry, and coastal artwork.
Ecological Role
Sessile filter feeder that helps clear microscopic plankton and suspended organic matter from coastal marine waters; serves as prey for crabs, predatory sea snails (like drills), and sea birds.
Similar Species
Prickly Jingle Shell (Anomia squamula) - smaller and rougher; False Pacific Jingle (Pododesmus macrochisma) - larger with distinct radial ribs; young Oyster shells (Crassostrea virginica) - much thicker, opaque, and lacking shiny translucent nacre.
Beach Finding Tips
Look along the high tide drift line or shell hash zones after storm events or strong onshore winds. They are easily spotted among grey shell debris due to their shiny, translucent yellow, orange, and silvery hues reflecting in sunlight.
Notes
Oak Island NC