The Nautilus Log
Venus nux

Venus nux

NameVenus nux
Scientific NameVenus nux
Common NameNut Venus clam
FamilyVeneridae
GenusVenus
Speciesnux
Geographic DistributionIndo-Pacific, including regions like the Philippines, Indonesia, and other parts of Southeast Asia.
Habitatsubtidal
Average Size (mm)20-40
Identifying FeaturesThe most distinctive feature is the presence of numerous, strong, rounded, and regularly spaced concentric ribs that cover the entire shell surface. The shell is thick and solid. The lunule (area in front of the umbones) and escutcheon (area behind the umbones) are typically well-defined, though not clearly visible in this specific image. The inner margin is usually crenulated.
Raritycommon
Author CitationGmelin, 1791

Description

A bivalve seashell, commonly known as a Venus clam, characterized by its robust, subtrigonal to ovate shell and prominent, regular concentric ribs. The shell is equivalve and moderately inflated, displaying a creamy white to yellowish-white coloration. The image shows both the exterior of a single valve and a view of the articulated shell from the anterior/posterior, revealing the hinge line and the strong ribbing.

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