An intertidal, sandy mud-dwelling species.
Description — SHell 39 to 91 mm in length, solid, heavy, with 5 rows of large, squarish brownish spots, with 2 to 5 former varices showing in the spire, and with a moderately developed columellar shield. Nuclear whorls 2, bidimoid, smooth, glossy, white or tan. Post-nuclear whorls slightly round, and bearing about 5 to 7 spiral rows ol fine beads which disappear in the last whorl. 2 to 5 former varices present in the spire. Last whorl smoothish, but may have weak axial wrinkles on the shoulder and 3 or 4 weak spiral grooves at the base. The dorsum is sometimes humped because of an underlying, former varix. Aperture elongate, tan to dark-brown within. Parietal shield moderately developed, 3 rows of square spots showing on the parietal wall; the left edge ol the columellar shield is sharp and is cemented to the lower half of the first former varix. Columella with a dozen or so slanting, irregular, raised, whitish plicae and elongate pustules. The upper end of the parietal wall bears 2 to 4 short, oblique plicae. Outer lip thick, whitish, with 5 weak, inanve bars, and with about 15 to 20 small, raised teeth on the inner edge. Siphonal canal short, recurved and stained with mauve-brown on its inner edge. Umbilicus almost sealed by a former varix. False umbilicus sealed or minutely open.
[Indo Pacific Mollusca, Vol 2 No 9. 1968. p12-540]