Asian Backwater Clam
NameAsian Backwater Clam
Scientific NameCorbicula fluminea
Common NameAsian Backwater Clam
FamilyCyrenidae
GenusCorbicula
Speciesfluminea
Geographic DistributionNative to Asia (Siberia, China, Korea, Japan, Philippines, Thailand, etc.). Widely introduced and invasive in North America, South America, Europe, and parts of Africa.
Habitatbrackish
Average Size (mm)20-50
Identifying FeaturesInflated, subtrigonal shell; often has distinct concentric growth ridges (though sometimes subtle or worn); typically yellowish-brown to greenish-brown exterior; often a purplish interior; small size; found in freshwater/brackish habitats. The shell in the image is relatively smooth with faint concentric lines, consistent with *Corbicula* species.
Dietfilter-feeder
Raritycommon
Author Citation(Müller, 1774)
Description
A small to medium-sized freshwater bivalve mollusk, characterized by its inflated, subtrigonal to ovate shell. The shell surface is typically smooth to finely sculptured with concentric growth lines. The specimen in the image displays a somewhat translucent appearance with varying shades of brown, grey, and bluish hues, particularly towards the umbo. It is often found partially buried in sandy or muddy substrates.
