 Dall) The size of the shell varies between 2 mm and 2.5 mm.The small, white shell has almost exactly the shape of "Trochus fulgidus" Jeffreys, but a little smaller, with three extremely rounded whorls covered with small close-set irregular granulations of nearly uniform size like sand grains.The base of the shell has a small perforate umbilicus, into which the whorl rounds without carina, callus, or break of any kind.