
Sinum neritoideum
NameSinum neritoideum
Scientific NameSinum neritoideum
Common NameEar moon snail, Ear shell, Nerite-like ear shell
FamilyNaticidae
GenusSinum
Speciesneritoideum
Geographic DistributionIndo-Pacific region, including East Africa, Red Sea, Indian Ocean, and Western Pacific.
Habitatintertidal
Average Size (mm)20-50
Identifying FeaturesExtremely flattened, ear-like profile; large, wide, D-shaped aperture; almost entirely submerged spire; smooth, often glossy exterior; thin shell wall. The outer lip is simple and sharp.
Raritycommon
Author Citation(Linnaeus, 1758)
Description
A species of predatory sea snail, commonly known as the ear moon snail, characterized by its distinctive flattened, ear-shaped shell. It belongs to the family Naticidae and is found in sandy habitats across the Indo-Pacific. The shell in the image is a typical example, showcasing its smooth, white, and auriform structure.





