Marcia japonica
NameMarcia japonica
Scientific NameMarcia japonica
Common NameJapanese carpet shell, Japanese venus clam
FamilyVeneridae
GenusMarcia
Speciesjaponica
Geographic DistributionIndo-Pacific region, including Japan, Korea, China, and the Philippines.
Habitatintertidal
Average Size (mm)40
Identifying FeaturesProminent concentric growth lines, often with subtle radial markings creating a cancellate pattern. Ovate, moderately inflated shell. Glossy white interior with a distinct pallial sinus. The umbo is slightly anterior.
Dietfilter-feeder
Raritycommon
Author Citation(Gmelin, 1791)
Description
Marcia japonica is a medium-sized bivalve mollusc, commonly known as the Japanese carpet shell or Japanese venus clam. Its shell is typically ovate to subtrigonal, moderately inflated, and equivalve. The exterior surface is characterized by prominent concentric growth lines and often displays a pattern of darker radial markings or blotches on a lighter background. The interior is smooth and glossy white, sometimes with a yellowish or purplish tint, and features a distinct pallial sinus.
