Kernel Cowry
NameKernel Cowry
Scientific NameNucleolaria nucleus
Common NameKernel Cowry
FamilyCypraeidae
GenusNucleolaria
Speciesnucleus
Geographic DistributionIndo-Pacific region, including East Africa, the Red Sea, Indian Ocean, and Western Pacific, ranging from Japan to Australia and various Pacific islands.
Habitatsubtidal
Average Size (mm)15-35
Identifying FeaturesThe most striking identifying feature is the highly papillose, often branched, translucent mantle that completely covers the shell when the animal is active. The shell itself has a unique granular or nodulose surface, resembling small kernels or beads.
Raritycommon
Author Citation(Linnaeus, 1758)
Description
The image displays a living Kernel Cowry with its mantle fully extended, almost entirely obscuring the shell. The mantle is translucent, pale white to cream, and densely covered with numerous, highly branched, tree-like papillae. The shell, visible through the mantle, appears reddish-orange with a distinctly granular or nodulose texture. The animal is observed on a rocky or coralline algal substrate.
