Bembicium pictum Philippi, 1846 Littorina australis Gray, 1839 Risella crassa Dunker, 1861 Risella grisea Philippi, 1851 Trochus acuminatus Wood, 1828 Trochus nanus Lamarck, 1822 Trochus planus Quoy & Gaimard, 1834 Bembicium nanum is a species of sea snail, a marine gastropod mollusk in the family Littorinidae, the winkles or periwinkles.

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