Biota | Animalia | Mollusca | Gastropoda | Neritimorpha | Cycloneritida | Helicinoidea | Helicinidae | Stoastomatinae | Lewisia
|  |  | Cuvier, 1795 | Koken, 1896 |  | A. Férussac, 1822 | A. Férussac, 1822 | C. B. Adams, 1849 | Chitty, 1857