[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
001 Family Patellidae Rafinesque, 1815 - limpets
002 Family Nacellidae Thiele, 1891, nom. protect.
003 Family Acmaeidae Forbes, 1850 - American limpets
004 Family Lepetidae Gray, 1850
005 Family Lottiidae Gray, 1840 - American limpets
006 Family Cocculinidae Dall, 1882
007 Family Bathysciadiidae Dautzenberg & Fischer, 1900
008 Family Lepetellidae Dall, 1882
009 Family Addisoniidae Dall, 1882
010 Family Choristellidae Ph. Bouchet & A. Warén, 1979
see Subfamily Choristellinae Bouchet & Warén, 1979
011 Family Osteopeltidae Marshall, 1987
012 Family Pseudococculinidae Hickman, 1983
013 Family Neritidae Rafinesque, 1815 - nerites
014 Family Fissurellidae Fleming, 1822 - keyhole limpets
015 Family Scissurellidae Gray, 1847
016 Family Haliotidae Rafinesque, 1815 - abalones
017 Family Trochidae Rafinesque, 1815 - top snails
018 Family Seguenziidae Verrill, 1884
019 Family Trochaclididae Thiele, 1928
see Family Ataphridae Cossmann, 1915
020 Family Pendromidae Warén, 1991
021 Family Skeneidae Clark, 1851
see Subfamily Skeneinae Clark, 1851
022 Family Cyclostrematidae Fischer, 1885
see Subfamily Liotiinae Gray, 1850
023 Family Turbinidae Rafinesque, 1815 - turban snails
024 Family Tricoliidae Woodring, 1928
see Subfamily Tricoliinae Woodring, 1928
025 Family Cerithiidae Fleming, 1822 - ceriths
026 Family Dialidae Kay, 1979
027 Family Fossaridae Adams, 1860
see Subfamily Fossarinae Adams, 1860
028 Family Litiopidae Gray, 1847
029 Family Obtortionidae Thiele, 1925
see Family Scaliolidae Jousseaume, 1912
030 Family Planaxidae Gray, 1850
031 Family Potamididae Adams & Adams, 1854 - potamids
032 Family Scaliolidae Jousseaume, 1912
033 Family Siliquariidae Anton, 1838
034 Family Turritellidae Lovén, 1847 - turret snails
035 Family Triphoridae Gray, 1847
036 Family Cerithiopsidae Adams & Adams, 1853
037 Family Janthinidae Lamarck, 1822 - violet snails
038 Family Aclididae Sars, 1878
039 Family Epitoniidae Berry, 1910 (1812) - wentletraps
040 Family Eulimidae Philippi, 1853
041 Family Littorinidae Children, 1834 - periwinkles
042 Family Lacunidae Gray, 1857
see Subfamily Lacuninae Gray, 1857
043 Family Skeneopsidae Iredale, 1915
044 Family Zerotulidae Warén & Hain, 1996
045 Family Cingulopsidae Fretter & Patil, 1958
046 Family Rissoidae Gray, 1847
047 Family Adeorbidae Monterosato, 1884
see Subfamily Torninae Sacco, 1896 (1884)
048 Family Anabathridae Keen, 1971
049 Family Assimineidae Adams & Adams, 1856
050 Family Barleeidae orth. inval.
see Family Barleeiidae Gray, 1857
051 Family Caecidae Gray, 1850 - caecids
052 Family Elachisinidae Ponder, 1985
053 Family Hydrobiidae Stimpson, 1865
054 Family Iravadiidae Thiele, 1928
055 Family Tornidae Sacco, 1896 (1884)
056 Family Truncatellidae Gray, 1840
057 Family Vermetidae Rafinesque, 1815 - worm snails
058 Family Strombidae Rafinesque, 1815 - conchs
059 Family Aporrhaiidae E.A. Smith, 1896, orth. inval.
see Family Aporrhaidae Gray, 1850
060 Family Vanikoridae Gray, 1840
061 Family Hipponicidae Troschel, 1861 - horse hoof limpits
062 Family Xenophoridae Troschel, 1852 (1840) - carrier snails
063 Family Calyptraeidae Lamarck, 1809 - slipper snails and shelf limpets
064 Family Haloceratidae Warén & Bouchet, 1991
065 Family Capulidae Fleming, 1822 - cap snails
066 Family Lamellariidae d'Orbigny, 1842
see Subfamily Lamellariinae d'Orbigny, 1841
067 Family Velutinidae Gray, 1840
068 Family Triviidae Troschel, 1863 - trivias
069 Family Eratoidae T. Gill, 1871 - coffee bean shells
see Tribe Eratoini Gill, 1871
070 Family Cypraeidae Rafinesque, 1815 - cowries
071 Family Ovulidae Fleming, 1822 - egg snails
072 Family Naticidae Guilding, 1834 - moon snails
073 Family Tonnidae Suter, 1913 (1825) - tuns
074 Family Cassidae P.A. Latreille, 1825 - helmet snails
see Subfamily Cassinae Latreille, 1825
075 Family Laubierinidae Warén & Bouchet, 1990
076 Family Ranellidae Gray, 1854 - tritons
077 Family Pisanianuridae Warén & Bouchet, 1990
078 Family Personidae Gray, 1854
079 Family Bursidae Thiele, 1925 - frog snails
080 Family Carinariidae Blainville, 1818
081 Family Atlantidae Rang, 1829
082 Family Firolidae Rang, 1829
see Family Pterotracheidae Rafinesque, 1814
083 Family Muricidae Rafinesque, 1815 - drills
084 Family Coralliophilidae Chenu, 1859
see Subfamily Coralliophilinae Chenu, 1859
085 Family Fasciolariidae Gray, 1853 - tulip snails
086 Family Buccinidae Rafinesque, 1815 - whelks
087 Family Nassariidae Iredale, 1916 (1835) - mud snails
088 Family Columbellidae Swainson, 1840 - dove snails
089 Family Costellariidae MacDonald, 1860
090 Family Marginellidae Fleming, 1828 - marginellas
091 Family Cystiscidae Stimpson, 1865
092 Family Mitridae Swainson, 1829 - miter snails
093 Family Olividae Latreille, 1825 - olive snails
094 Family Pseudolividae de Gregorio, 1880
095 Family Turbinellidae Swainson, 1835
096 Family Volutidae Rafinesque, 1815 - volutes
097 Family Volutomitridae Gray, 1854 - false mitres
098 Family Cancellariidae Forbes & Hanley, 1851 - nutmeg snails
099 Family Drilliidae Olsson, 1964
100 Family Turridae Adams & Adams, 1853 (1838) - turret snails
101 Family Conidae Fleming, 1822 - cone snails
102 Family Architectonicidae Gray, 1850
103 Family Mathildidae Dall, 1889
104 Family Rissoellidae Gray, 1850
105 Family Omalogyridae Sars, 1878
106 Family Xylodisculidae Warén, 1992
107 Family Cornirostridae Ponder, 1990
108 Family Hyalogyrinidae Warén & Bouchet, 1993
109 Family Cimidae Warén, 1993
110 Family Orbitestellidae Iredale, 1917
111 Family Pyramidellidae Gray, 1840
112 Family Ebalidae Warén, 1995
see Family Murchisonellidae Casey, 1904
113 Family Tjaernoiidae orth. inval.
see Family Tjaernoeiidae Warén, 1991
114 Family Acteonidae d'Orbigny, 1843, nom. protect. - bubble shells
115 Family Hydatinidae Pilsbry, 1895, nom. illeg.
see Family Aplustridae Gray, 1847
116 Family Diaphanidae Odhner, 1914 (1857)
117 Family Retusidae Thiele, 1925
118 Family Ringiculidae Philippi, 1853
119 Family Runcinidae Adams & Adams, 1854
120 Family Bullidae Gray, 1827
121 Family Haminoeidae Pilsbry, 1895
122 Family Philinidae Gray, 1850 (1815)
123 Family Aglajidae Pilsbry, 1895 (1847)
124 Family Cylichnidae Adams & Adams, 1854
125 Family Gasteropteridae
see Family Gastropteridae Swainson, 1840
126 Family Philinoglossidae Hertling, 1932
127 Family Cavoliniidae Gray, 1850 (1815)
128 Family Limacinidae Gray, 1840
129 Family Cymbuliidae Gray, 1840
130 Family Desmopteridae Chun, 1889
131 Family Peraclidae Tesch, 1913
132 Family Clionidae Rafinesque, 1815
133 Family Cliopsidae Costa, 1873
134 Family Notobranchaeidae Pelseneer, 1886
135 Family Pneumodermatidae Latreille, 1825
136 Family Oxynoeidae
see Family Oxynoidae Stoliczka, 1868 (1847)
137 Family Volvatellidae Pilsbry, 1895
138 Family Elysiidae Forbes & Hanley, 1851
see Family Placobranchidae Gray, 1840, orth. inval.
139 Family Boselliidae Marcus, 1982
140 Family Hermaeidae Adams & Adams, 1854
141 Family Costasiellidae Clark, 1984
see Family Limapontiidae Gray, 1847
142 Family Stiligeridae Iredale & O'Donoghue, 1923
see Family Limapontiidae Gray, 1847
143 Family Limapontiidae Gray, 1847
144 Family Umbraculidae Dall, 1889 (1827)
145 Family Tylodinidae Gray, 1847
146 Family Pleurobranchidae Gray, 1827
147 Family Microhedylidae Odhner, 1937
see Family Parhedylidae Thiele, 1931
148 Family Platyhedylidae Salvini-Plawen, 1973
149 Family Asperspinidae Rankin, 1979
150 Family Hedylopsidae Odhner, 1952
151 Family Minicheviellidae Starobogatov, 1983
see Family Asperspinidae Rankin, 1979
152 Family Rhodopidae Ihering, 1876
153 Family Akeridae Mazzarelli, 1891
154 Family Aplysiidae Lamarck, 1809
155 Family Dolabriferidae Pilsbry, 1895
see Subfamily Dolabriferinae Pilsbry, 1895
156 Family Bathydorididae Bergh, 1891
157 Family Aegiretidae Fischer, 1883
158 Family Corambidae Bergh, 1871
159 Family Goniodorididae Adams & Adams, 1854
160 Family Onchidorididae Gray, 1827
161 Family Triophidae Odhner, 1941
see Tribe Triophini Odhner, 1941
162 Family Dorididae Rafinesque, 1815
163 Family Aldisidae Odhner, 1939
see Family Dorididae Rafinesque, 1815
164 Family Archidorididae Bergh, 1891
see Family Dorididae Rafinesque, 1815
165 Family Chromodorididae Bergh, 1891, nom. protect.
166 Family Discodorididae Bergh, 1891
167 Family Kentrodorididae Bergh, 1891
see Family Discodorididae Bergh, 1891
168 Family Platydorididae Bergh, 1891
see Family Discodorididae Bergh, 1891
169 Family Rostangidae Pruvot-Fol, 1951
see Family Discodorididae Bergh, 1891
170 Family Polyceridae Alder & Hancock, 1845
171 Family Gymnodorididae Odhner, 1941
172 Family Dendrodorididae O'Donoghue, 1924 (1864)
173 Family Phyllidiidae Rafinesque, 1814
174 Family Dendronotidae Allman, 1845
175 Family Dotidae Gray, 1853
176 Family Hancockiidae MacFarland, 1923
177 Family Lomanotidae Bergh, 1890
178 Family Phylliroidae Menke, 1830
179 Family Scyllaeidae Alder & Hancock, 1855
180 Family Tethydidae Rafinesque, 1815
181 Family Tritoniidae Lamarck, 1809
182 Family Arminidae Iredale & O'Donoghue, 1923 (1841)
183 Family Heterodorididae Verrill & Emerton, 1882
see Family Arminidae Iredale & O'Donoghue, 1923 (1841)
184 Family Heroidae Gray, 1857
185 Family Goniaeolididae Odhner, 1907
186 Family Madrellidae Preston, 1911
187 Family Proctonotidae Gray, 1853
188 Family Aeolidiidae Gray, 1827
189 Family Calmidae Iredale & O'Donoghue, 1923
190 Family Cumanotidae Odhner, 1907
see Family Flabellinidae Bergh, 1889
191 Family Eubranchidae Odhner, 1934
192 Family Facelinidae Bergh, 1889
193 Family Favorinidae Bergh, 1889
see Subfamily Favorininae Bergh, 1889
194 Family Fionidae Alder & Hancock, 1855
195 Family Flabellinidae Bergh, 1889
196 Family Glaucidae Gray, 1827, nom. protect.
197 Family Piseinotecidae Edmunds, 1970
198 Family Pseudovermidae Thiele, 1931
199 Family Tergipedidae Bergh, 1889
200 Family Siphonariidae Gray, 1827
201 Family Trimusculidae Burch, 1945 (1840)
202 Family Onchidiidae Rafinesque, 1815
203 Family Ellobiidae Pfeiffer, 1854 (1822)
204 Family Otinidae Adams & Adams, 1855