Astralium confragosum
NameAstralium confragosum
Scientific NameAstralium confragosum
Common NameRough Star Shell
FamilyTurbinidae
GenusAstralium
Speciesconfragosum
Geographic DistributionIndo-Pacific region, including areas off Australia (Queensland, Western Australia), the Philippines, Japan, and New Caledonia.
Habitatsubtidal
Shell Shapetrochiform
Average Size (mm)30
Identifying FeaturesKey features include its trochiform shape, flattened base, and the presence of strong, often spiny or nodulose spiral ribs, particularly at the shell's periphery. The rough, sculptured surface and pearly aperture are also distinctive.
Raritycommon
Author Citation(Gould, 1849)
Description
A robust, trochiform (top-shaped) marine gastropod shell, characterized by its flattened base and prominent, often spiny or nodulose spiral ribs, particularly at the periphery. The shell exhibits a dull white to cream coloration, often with darker brown or greyish mottling or bands, and a pearly white interior aperture. Its rough texture and distinctive shape are key identifying features.
