[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 Polyceridae Alder & Hancock, 1845
         1 Genus Polycera Cuvier, 1817
         2 Genus Colga Bergh, 1880
         3 Genus Limacia Müller, 1781
         4 Genus Polycerella Verrill, 1880
         5 Genus Thecacera Fleming, 1828