The sculpture of the entire surface is closely finely spirally striate.

The colour of the shell is dark olive-brown or greenish, minutely tessellated all over with a slightly darker shade of the same hue.

The outer and basal lip are convex, with a narrow opaque margin within, which is smooth.

The oblique columella is straight, in adult specimens with a few inconspicuous plications above.

[3] This marine species is endemic to New Zealand and occurs off North Island