Phasianotrochus sericinusPhasianotrochus sericinus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.DescriptionThe elongated, ovate-pointed shell is thick, solid, polished. The ovate aperture is longer than broad. The columella is arcuate, bearing usually a tooth-like projection in the middle.DistributionThis marine species is endemic to Australia and occurs off Cockburn Sound, Western Australia.