Sinum grayi
NameSinum grayi
Scientific NameSinum grayi
Common NameGray's Ear Snail, Gray's Moon Snail
FamilyNaticidae
GenusSinum
Speciesgrayi
Geographic DistributionIndo-Pacific, including regions from East Africa to the Philippines, Japan, and Australia.
Average Size (mm)30-40
Identifying FeaturesFlattened, ear-like shell shape; extremely low or sunken spire; large, wide aperture (not fully visible in dorsal view); fine concentric growth lines on the shell surface.
Raritycommon
Author Citation(Philippi, 1845)
Description
Two specimens of Sinum grayi, commonly known as Gray's Ear Snail or Gray's Moon Snail, are depicted. These shells are characterized by their distinctive ear-shaped, flattened form with a very low, almost sunken spire. The surface exhibits fine, concentric growth lines. The color is a uniform pale pinkish-tan to off-white.
