The length of the shell varies between 10 mm and 44 mm. (Original description as
Volutomitra alaskana) The shell is fusiform, with about six moderately convex
whorls. The suture is distinct. The surface is wholly minutely spirally striated, covered with an olivaceous periostracum over a white or yellowish shell. The
aperture is longer than half the total length, with a rather wide
siphonal canal, a callous
columella and body in the adult, and simple outer
lip. The siphonal canal has a well marked siphonal fasciole, and is slightly flexuous. There are normally four plaits, rarely three or five, strong and rather distant. The protoconch is almost always eroded. ==Distribution==