7mm. Thin, dull, narrowly elongate, sutures deep, early whorls usually missing so that spire is characteristically truncate; protoconch of 3 smooth, rounded whorls. Outer lip projects slightly, no umbilicus. Regularly spaced axial ribs on all whorls. White. Habitat: pools at high-water mark

Shell slender, early whorls lost in adult, giving it a rather cylindrical shape; sculptured with strong, slightly curved axial ribs (occasionally weak or abbreviated in some specimens); protoconch with fine, close axial riblets. White, buff or reddish-brown. Length up to 8.3 mm.
Avery widely distributed tropical species, known from as far afield as the Red Sea, South Pacific and Philippines. An isolated population lives (or lived) in the Swartkops River in Algoa Bay, and another evidently in the Mzamba River area of Transkei (where shells have been collected recently in beach-drift). Nothing is known of the specific habitat of the South African populations, but elsewhere looper snails appear to live in a variety of supra-littoral habitats. Near Inhambane in Mozambique, we found this species to be common under the scrubby vegetation growing in the splash zone associated with exposed rocky headlands, whilst on Mauritius we collected another species in sheltered lagoonal conditions, in moist sand under stones in the shade of Casuarina trees growing at the level of the highest tides. A synonym is Truncatella teres Pfeiffer, 1856.