Natura - nature
  
 actualia - actual entities
    
 Mundus Plinius - physical world
      
 naturalia - natural bodies
        
 Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
          
 Clade neomura Cavalier-Smith, 1987
            
 Domain Eukaryota Chatton, 1925 - eukaryotes
              
 Clade discaria Cavalier-Smith, 2021
                
 Clade dorsates Cavalier-Smith, 2021
                  
 Clade podiates Cavalier-Smith, 2012
                    
 Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
                      
 Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
                        
 Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
                          
 Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
                            
 Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
                              
 Kingdom Animalia Linnaeus, 1758 - animals
                                
 Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
                                  
 Subkingdom Bilateria Hatschek, 1888 - bilaterians
                                    
 Clade Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
                                      
 Infrakingdom Protostomia Grobben, 1908
                                        
 Superphylum Spiralia Schleip, 1929
                                          
 Clade Platytrochozoa Struck, Wey-Fabrizius, Golombek, Hering, Weigert, Bleidorn, Klebow, Iakovenko, Hausdorf, Petersen, Kück, Herlyn & Hankeln 2014
                                            
 Clade Lophotrochozoa Halanych, Bacheller, Aguinaldo, Liva, Hillis & Lake 1995 - lophotrochozoans
                                              
 Clade Trochozoa Beklemischev, 1944 - trochozoans
                                                
 Clade Tetraneuralia Wanninger 2009
                                                  
 Phylum Mollusca Linnaeus, 1758 - molluscs
                                                    
 Subphylum Conchifera Gegenbauer, 1878
                                                      
 Ganglioneura Rudophi, 1812
                                                        
 Clade Pleistomollusca Kocot, Cannon, Todt, Citarella, Kohn, Meyer, Santos, Schander, Moroz, Lieb & Halanych 2011
                                                          
 Class Gastropoda Cuvier, 1795 - snails and slugs
                                                            
 Subclass Orthogastropoda Ponder & Lindberg, 1995
                                                              
 Apogastropoda Salvini-Plawen & Haszprunar, 1987
                                                                
 Superorder Heterobranchia Burmeister, 1837
                                                                  
 Euthyneura Spengel, 1881
                                                                    
 Tectipleura Schrödl, Jörger, Klussmann-Kolb & Wilson, 2011
                                                                      
 Panpulmonata Jörger, Stöger, Kano, Fukuda, Knebelsberger & Schrödl, 2010
                                                                        
 Order Eupulmonata Haszprunar & Huber, 1990
                                                                          
 Suborder Stylommatophora Schmidt, 1855 - higher pulmonates
                                                                            
 Informal Group "Sigmurethra" Pilsbry, 1900
                                                                              
 "limacoid clade"
                                                                                
 Superfamily Helicoidea Rafinesque, 1815
                                                                                  
 Family Bradybaenidae Pilsbry, 1934 (1898)
                                                                                    
 Subfamily Helicostylinae Ihering, 1909
                                                                                      
 Genus Helicostylaᵀ Férussac, 1821
                                                                                        
 Helicostyla annulata (Sowerby, 1840)
                                                                                        
 Helicostyla bicolorata Lea, 1891
                                                                                        
 Helicostyla boholensis Broderip, 1892
                                                                                        
 Helicostyla calamianica Quadras & Möllendorff, 1894
                                                                                        
 Helicostyla camelopardalis Broderip, 1892
                                                                                        
 Helicostyla carinata (I. Lea, 1840)
                                                                                        
 Helicostyla chrysalidiformis Sowerby, 1892
                                                                                        
 Helicostyla cincinna (Sowerby, 1840)
                                                                                        
 Helicostyla cincinniformis (Sowerby, 1840)
                                                                                        
 Helicostyla codonensis Hidalgo, 1890
                                                                                        
 Helicostyla cryptica (Broderip, 1840)
                                                                                        
 Helicostyla dimera (Jonas, 1854)
                                                                                        
 Helicostyla dryas Broderip, 1892
                                                                                        
 Helicostyla effusa Pfeiffer, 1892
                                                                                        
 Helicostyla fictilis Broderip, 1892
                                                                                        
 Helicostyla filaris (Valenciennes, 1845)
                                                                                        
 Helicostyla fischeri Hidalgo, 1892
                                                                                        
 Helicostyla florida (Sowerby, 1840)
                                                                                        
 Helicostyla fulgetrum Broderip, 1892
                                                                                        
 Helicostyla hidalgoi Möllendorff, 1890
                                                                                        
 Helicostyla intorta (Sowerby, 1840)
                                                                                        
 Helicostyla leai Pfeiffer, 1892
                                                                                        
 Helicostyla lignaria Pfeiffer, 1891
                                                                                        
 Helicostyla luzonica (Sowerby, 1842)
                                                                                        
 Helicostyla marinduquensis Hidalgo, 1891
                                                                                        
 Helicostyla melanocheila (Valenciennes, 1854)
                                                                                        
 Helicostyla metaformis (Férussac, 1840)
                                                                                        
 Helicostyla mindoroensis Broderip, 1892
                                                                                        
 Helicostyla mirabilis (Férussac, 1821)
                                                                                        
 Helicostyla montana Semper, 1891
                                                                                        
 Helicostyla norrissi (Sowerby, 1842)
                                                                                        
 Helicostyla nympha (Pfeiffer, 1849)
                                                                                        
 Helicostyla ovoidea (Bruguiére, 1792)
                                                                                        
 Helicostyla partuloides Broderip, 1892
                                                                                        
 Helicostyla philippiensis Pfeiffer
                                                                                        
 Helicostyla pithogaster Férussac, 1891
                                                                                        
 Helicostyla polillensis
                                                                                        
 Helicostyla polychroa (Sowerby, 1840)
                                                                                        
 Helicostyla portei (Pfeiffer, 1861)
                                                                                        
 Helicostyla pudibunda Semper, 1891
                                                                                        
 Helicostyla roissyana (Férussac, 1840)
                                                                                        
 Helicostyla rollei Möllendorff, 1890
                                                                                        
 Helicostyla rufogaster Lesson, 1891
                                                                                        
 Helicostyla samarensis Semper, 1891
                                                                                        
 Helicostyla sarcinosa (Férussac, 1840)
                                                                                        
 Helicostyla satyrus (Broderip, 1840)
                                                                                        
 Helicostyla sphaerica (Sowerby, 1841)
                                                                                        
 Helicostyla stabilis (Sowerby, 1840)
                                                                                        
 Helicostyla subcarinata Pfeiffer, 1890
                                                                                        
 Helicostyla submirabilis (Möllendorff, 1897)
                                                                                        
 Helicostyla turbo (Pfeiffer, 1845)
                                                                                        
 Helicostyla ventricosa (Bruguière, 1792)
                                                                                        
 Helicostyla virgata Jay, 1892
                                                                                        
 Helicostyla viridostriata Lea, 1891
                                                                                        
 1 Subgenus Helicostyla (Cochlodryas) Martens, 1860
                                                                                        
 2 Subgenus Helicostyla (Dryocochlias) Möllendorff, 1898
                                                                                        
 3 Subgenus Helicostyla (Helicobulinus) Broderip, 1841
                                                                                        
 4 Subgenus Helicostyla (Helicostyla)ᵀ Férussac, 1821
                                                                                        
 5 Subgenus Helicostyla (Hypselostyla) Pfeiffer, 1868
                                                                                        
 6 Subgenus Helicostyla (Opalliostyla) Pilsbry, 1896
                                                                                        
 7 Subgenus Helicostyla (Orustia) Mörch, 1852
                                                                                        
 8 Subgenus Helicostyla (Pachysphaera) Pilsbry, 1892