Astralium calcar

The six whorls are flattened above, and radiately plicate, the folds rather unequal and irregular.

The periphery is carinated spinose, bearing about twelve radiating more or less foliated spines upon the body whorl.

The outer lirae are generally prominent and subspinose, sometimes causing the periphery to appear bicarinate.

The aperture is transversely oval, very oblique, generally golden within, and stained with purple or blue on the columella.

[2] This marine species occurs off the Philippines, Indo-Malaysia and Queensland, Australia.

Close up apical view of Shell of Astralium calcar (Linnaeus, 1758), measuring 15.9 mm height by 27.7 mm diameter, trawled in deep water in the Philippines .