Shell reaching a large size, up to 90 mm. (3,5 inches) in length, solid but not massive, of moderate height to tall conical, with almost straight slopes; apex anterior third to sub-central. Sculpture of strong, sharply raised, prominently tubercled radial ribs; about 38 primary ribs and a varying number of secondary ribs, making a total of between 48 and 55. Colour of exterior pale yellowish brown, deepening towards the margin, the radials with scattered black spots; interior silvery-gray to cream, or pinkish white, with the spatula deep chestnut-brown, sometimes partly clouded with white callus; crenulated margin tinged with orange- brown. Length: 45-90 mm; Width: 39-75 mm; Height: 21-37 mm.

It is easily recognised by its tall conical shape, with straight dorsal slopes, conspicuous spinose radial ribs, pale yellowish brown exterior, sparsely speckled with black, and rich chestnut-brown spatula, within.

Japan. This very large but comparatively thin-shelled Cellana seems to be restricted to the Bonin Islands.