Life (root) » Animalia (Animals) » Mollusca (Mollusks) » Gastropoda (Gastropods) » Caenogastropoda (Caenogastropod Snails) » Littorinimorpha (Littorinimorph Snails) » Littorinoidea (Periwinkle Snails and Allies) » Littorinidae (Periwinkle Snails) » Lacuninae » Risellopsis » Risellopsis varia