
Sinum debile
NameSinum debile
Scientific NameSinum debile
Common NameWeak Ear Shell
FamilyNaticidae
GenusSinum
Speciesdebile
Geographic DistributionIndo-Pacific region, including areas such as the Philippines, Japan, and parts of Australia.
Habitatintertidal
Average Size (mm)20-50 mm in length
Identifying FeaturesKey features include its flattened, ear-like shape, the extremely low and often hidden spire, a wide crescent-shaped aperture, and a smooth, thin, and fragile shell surface often marked by fine growth lines.
Raritycommon
Author Citation(Gould, 1840)
Description
A species of sea snail, commonly known as the Weak Ear Shell or Fragile Ear Shell. The shell is distinctly flattened and ear-shaped, with a very low, almost entirely internal spire. It typically exhibits a smooth surface with fine, concentric growth lines. The aperture is wide and crescent-shaped, and the shell itself is relatively thin and fragile.





