Rapana bezoar
NameRapana bezoar
Scientific NameRapana bezoar
Common NameBezoar Rapa Whelk, Bezoar Whelk
FamilyMuricidae
GenusRapana
Speciesbezoar
Geographic DistributionIndo-Pacific region, including areas such as the Philippines, Indonesia, and parts of the Indian Ocean.
Habitatintertidal
Shell Shapeconical
Average Size (mm)70-150 mm
Identifying FeaturesHeavy, robust shell; prominent axial and spiral sculpture often forming nodules or blunt spines on the shoulder; wide aperture; and most distinctively, dark, vertical stripes on the inner lip of the aperture.
Raritycommon
Author Citation(Linnaeus, 1758)
Description
A robust, medium to large-sized marine gastropod shell, partially embedded in a muddy or sandy substrate. The shell exhibits a turbinate to ovate-conical shape with a relatively low spire and a large body whorl. Its surface is characterized by prominent axial ribs and spiral cords, which can form nodules or blunt spines, particularly on the shoulder. The aperture is wide and ovate, revealing a distinctive pattern of dark, vertical stripes or streaks on the inner lip against a lighter, often whitish or pale cream background. The exterior color is typically a dull reddish-brown to dark brown, often obscured by sediment or marine growth.
