Morum (Oniscidia) subcancellatum Nomura, 1935

"Shell small, elongate-ovate; spire short, conical, body-whorl very large. Whorls 7, apical two embryonal, smooth and globular; the rest shouldered, longitudinally ribbed and spirally ridged; ribs 11 on body-whorl (including terminal one), rounded, separated by interspaces two times wider; ridges regular, equidistant, 11 on body-whorl; tuberculated at crossing points of ribs, especially spiny on shoulder of whorls. Suture impressed, distinct by submarginal cord. Aperture narrow, slightly oblique; outer lip reflected, coarsely dentate, or undulated, corresponding to spiral ridges of outer surface; inner lip with thin callosity and rather irregularly corrugate. Canal short, widely open being truncated at sinuated base. Height, 39 mm.; diameter, 24 mm.; length of aperture, 34 mm.".