Shell: , Ovate, ranging from 23-25 mm.
Sculpture: smooth, porcelaneous.
Specimens
Hutchinson, Australia Size: mm Collected: 1999 found dead in sand on reef in 15m of water
Subspecies: Naria cernica viridicolor  (C. N. Cate, 1962) This subspecies from Arafura Sea, Western Australia and the Great Australian Bight. Rhomboid coarser collumelar teeth; dorsum greenish brown; marginal spots large and crowded. North West Cape, Australia Size: 25mm Collected: 1996 In limestone rubble at 20m.
Subspecies: Naria cernica viridicolor  (C. N. Cate, 1962) This subspecies from Arafura Sea, Western Australia and the Great Australian Bight. Rhomboid coarser collumelar teeth; dorsum greenish brown; marginal spots large and crowded. Shark Bay, Australia Size: 23.96mm Collected: Unknown Collected from cup sponges at 30m [100ft].
Gold Coast, Australia Size: mm Collected: 2018 forma tomlini Collected by diver Courtesy D Preston.
Gold Coast, Australia Size: mm Collected: 2018 forma tomlini Collected by diver Courtesy D Preston.