Irus ishibashianus
NameIrus ishibashianus
Scientific NameIrus ishibashianus
Common NameIshibashi's Irus Clam
FamilyVeneridae
GenusIrus
Speciesishibashianus
Geographic DistributionIndo-Pacific region, particularly known from Japanese waters.
Habitatintertidal
Average Size (mm)Approximately 30-40 mm in length.
Identifying FeaturesKey identifying features include the prominent, irregular, and often somewhat frilly concentric lamellae (ridges) that cover the shell surface, its ovate to subquadrate shape, and its relatively compressed profile. The hinge structure, though not visible, would also be characteristic of the genus Irus.
Dietfilter-feeder
Raritycommon
Author Citation(Akiyama, 1932)
Description
A bivalve seashell, appearing as a single valve, characterized by its ovate to subquadrate shape and prominent, irregular, concentric lamellae (ridges) on its exterior surface. The shell is generally off-white to creamy yellow in color, with growth lines visible. The overall form is relatively compressed.
