Bonnet Snail (F. Cassidae)
Tanah Merah, 7th June 2009
Based on the ridges on this shell, it is possible that this is the Crossed Bonnet Snail (Phalium decussatum).
Wild Fact Sheets
Gladys Archerd Shell Collection
CONCHOLOGY – The Art and Science of Nature
The Seashells of New South Wales
OBIS Indo-Pacific Molluscan Database