Shell resembling a small, delicately sculptured, round-whorled C. liratus. Whorls seven, upper ones with four or five strong cinguli, later ones with numerous fine intercalary threads between the primaries of which there are about twenty on the last whorl, color purplish-brown; sculpture feeble, with a smooth band next the suture; there are no transverse ribs; the epidermis is elevated in thin serrate lamellae in harmony with the lines of growth. Length of shell, 56; breadth, 30; length of aperture, 30 mm. (Dall.)
TYPE in United States National Museum. Type locality, U.S.S. "Albatross" Station 2862, off coast of British Columbia.
RANGE. Behm Canal, Alaska, to Cascade Head, Oregon.