Biota | Animalia | Mollusca | Gastropoda | Heterobranchia | Euthyneura | Ringipleura | Nudipleura | Nudibranchia | Cladobranchia | Tritonioidea | Tritoniidae | Tritoniinae | Tritoniopsis
|  |  | Cuvier, 1795 | Burmeister, 1837 |  |  | Wägele & Willan, 2000 | Cuvier, 1817 |  | Lamarck, 1809 | Lamarck, 1809 | Lamarck, 1809 | Eliot, 1905