Shell: small, ranging from 9-12 mm.
Sculpture: smooth, porcelaneous.
Redcliffe, Australia Size: 12mm Collected: Unknown Collected from under rocks on exposed muddy reef at low tide.
Subspecies: Purpuradusta hammondae dampierensis  Schilder & Cernohorsky, 1965 Western Australia - Arafura Sea. Elongate oval, slightly calloused; dorsum with broad interrupted bands and darker zones; dorsal spots often large and dense; spire blotch large covering most of the extremity; tips suffused with pink. Rosemary Island, Australia Size: mm Collected: Unknown Collected from under coral slabs on exposed reef at low tide.