Circular Saw Shell
NameCircular Saw Shell
Scientific NameBolma stellaris
Common NameCircular Saw Shell
FamilyTurbinidae
GenusBolma
Speciesstellaris
Geographic DistributionIndo-Pacific region, including areas such as the Philippines, Japan, and parts of Australia.
Shell Shapeconical
Average Size (mm)80
Identifying FeaturesThe most prominent identifying feature is the 'saw-like' periphery formed by numerous, flattened, triangular spines radiating outwards. The shell's overall discoidal shape, low spire, and granular or nodulose sculpture on the upper surface are also key characteristics.
Raritycommon
Author Citation(Gmelin, 1791)
Description
The Circular Saw Shell is a large, heavy marine gastropod shell characterized by its distinctive discoidal shape and a periphery adorned with numerous sharp, flattened spines, giving it a saw-like appearance. The shell surface is typically covered with granular or nodulose spiral cords, and the spire is very low and flattened. This specimen displays a uniform pale, off-white coloration, common for cleaned or aged shells.
