This is a small marine snail belonging to the family Littorinidae. It is native to southern Australia, including Tasmania, where it is widespread and commonly found along rocky shorelines.
This species lives high in the intertidal zone, around and above the high-tide mark, where it can survive long periods exposed to the air between tides. It occurs on both sheltered and exposed rocky coastlines, often occupying cracks, crevices and other protected areas of the rock surface.
Like other periwinkles, it feeds by grazing on microscopic algae and other organic material growing on rocks. The species is particularly common around Tasmania and western Victoria and is found across much of southern Australia.
