[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Gastropoda Cuvier, 1795 - snails and slugs
       Family Ranellidae Gray, 1854 - tritons
         Genus Cymatium Röding, 1798
           Cymatium aquatile (Reeve, 1844)
           Cymatium corrugatum (Lamarck, 1816)
           Cymatium kobelti (von Maltzan, 1884)
           Cymatium labiosum (W. Wood, 1828) - lip triton
           Cymatium martinianum (d'Orbigny, 1846) - hairy triton
           Cymatium muricinum (Röding, 1798) - knobbed triton
           Cymatium nicobaricum (Röding, 1798) - goldmouth triton
           Cymatium parthenopeum (von Salis, 1793) - giant triton
           Cymatium pharcidum (Dall, 1889)
           Cymatium tranquebaricum (Lamarck, 1816)
           Cymatium trigonum (Gmelin, 1791)