a: coll. C. Vos ref. TE057, Trawled live in mud in 200m, East China Sea, 58.8mm. Protoconch slightly damaged. Shape typical of the species; elongated, with a straight canal and thin, delicately elaborated outer lip. The spiral sculpture is visible through the coloration and the primary cords on the shoulder are entirely smooth.
b-c: coll. C. Vos ref. TE040, Dredged at 140-200m off south-west Taiwan, 62mm. Protoconch intact. Shape typical of the species, yet spiral sculpture opposite extreme from the previous specimen, as the primary cords on the shoulder and the first half of the last whorl are very nodulose.