Ziziphinus venustus Dunker, 1871 Calliostoma venustum is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.

The imperforate shell has an elevated-conical form, narrow and slender, the lateral outlines of spire straight, the base convex.

The ground color is either olive-green or dark red, with narrow longitudinal stripes of white.

The short columella is vertical, arcuate above, and terminaties in a truncation or fold-like tooth.

[3] This species occurs in the Pacific Ocean off the Fiji Islands.