[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 Pleurobranchidae Gray, 1827
         1 Genus Pleurobranchus Cuvier, 1804
         2 Genus Berthella Blainville, 1824
         3 Genus Berthellina Gardiner, 1936
         4 Genus Pleurobranchaea Leue, 1813