Japanese Hard Clam
NameJapanese Hard Clam
Scientific NameMeretrix petechialis
Common NameJapanese Hard Clam
FamilyVeneridae
GenusMeretrix
Speciespetechialis
Geographic DistributionNative to East Asia, including Japan, Korea, China, and Taiwan. It has also been introduced to other regions.
Habitatintertidal
Average Size (mm)Typically ranges from 50 to 100 mm in length, with some individuals reaching up to 120 mm.
Identifying FeaturesThick, solid, trigonal-ovate shell with a glossy periostracum. Distinct concentric growth lines are visible. The color patterns are extremely variable, ranging from plain dark colors to intricate banding and radial streaking. The interior is typically white or purplish.
Raritycommon
Author Citation(Lamarck, 1818)
Description
The Japanese Hard Clam is a commercially important bivalve mollusk known for its robust, glossy shell and variable coloration. It is a common inhabitant of sandy and muddy substrates in coastal waters of East Asia.
