Phalium bandatumPhalium bandatum, common name the banded bonnet, is a species of sea snail, a marine gastropod mollusk in the family Cassidae.There is one subspecies: ''Phalium bandatum exaratum''DescriptionThe size of an adult shell varies between 40 mm and 140 mm.DistributionThis marine species occurs along the coasts of Japan, the Philippines and Northern Australia.