Calliostomatidae – Calliostomatinae: Calliostoma (Fautor) zietzi Verco, 1905 (‘Zietz’s top-shell’)
Synonym(s): zietzi Verco, 1905.
Typical shell-length 8.0 mm. Lives in offshore waters on sponges and bryozoans. Native. Endemic to southeastern and southwestern Australia (TAS, VIC, SA and WA).