Classification of Ladd 1966
Or. Neoloricata Bergenhayn 1955
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Fm. Acanthochitonidae Pilsbry 1893
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G. Acanthochitona Gray 1821 [glass-hair chiton]
G. Cryptoplax Blainville 1818
Fm. Schizochitonidae Dall 1885
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G. Loricella Pilsbry 1893
Cl. Gastropoda Cuvier 1795 [snail]
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Fm. †Stomatellidae
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G. Pseudostomatella Thiele 1921
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Subg. Pseudostomatella (Pseudostomatella) Thiele 1921
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Pseudostomatella (Pseudostomatella) maculata Quoy and Gaimard 1834
G. Synaptocochlea Pilsbry 1890
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Synaptocochlea concinna Gould 1845
†Synaptocochlea lekalekanum Ladd 1945
Synaptocochlea rosacea Pease 1867
G. Montfortia Recluz 1843
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Fm. †Angariidae
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G. Angaria Röding 1798
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Angaria delphinus Linnaeus 1758 [laciniated dolphin shell]
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Invalid names: Delphinula distorta Linnaeus 1758 [synonym]
Invalid names: Delphinulidae Stoliczka 1868 [synonym]
Fm. Chitonidae Rafinesque 1815
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Fm. Fissurellidae Fleming 1822
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G. Diodora Gray 1821
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G. Emarginula Lamarck 1801
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Subg. Emarginula (Emarginula) Lamarck 1801
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Emarginula (Emarginula) bicancellata Montrouzier 1860
Emarginula (Emarginula) clypeus Adams 1852
Emarginula (Emarginula) souberbiana Pilsbry 1890
Subg. Emarginula (Subzeidora) Iredale 1924
G. Hemitoma Swainson 1840
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Fm. Haliotidae Rafinesque 1815 [abalone]
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G. Haliotis Linnaeus 1758
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Subg. Haliotis (Padollus) Montfort 1810
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Haliotis (Padollus) clathrata Reeve 1846
Haliotis (Padollus) ovina Gmelin 1791
Fm. Neritidae Rafinesque 1815
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G. Clithon Montfort 1810
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G. Nerita Linnaeus 1758
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Subg. Nerita (Amphinerita) Martens 1887
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Nerita (Amphinerita) insculpta Récluz 1841
Nerita (Amphinerita) polita Linnaeus 1758
Subg. Nerita (Ritena) Gray 1858
G. Neritilia Martens 1879
G. Pisulina Nevill and Nevill 1869
G. Smaragdia Issel 1869
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Fm. Patellidae Rafinesque 1815
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G. Patella Linnaeus 1758
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Subg. Patella (Scutellastra) Adams and Adams 1854
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Patella (Scutellastra) stellaeformis Reeve 1842
Fm. Phasianellidae Swainson 1840
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G. Phasianella Lamarck 1804
G. Tricolia Risso 1826
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Fm. Rissoidae Gray 1847
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G. Alvania Risso 1826
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G. Amphithalmus Carpenter 1864
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Subg. Amphithalmus (Cerostraca) Oliver 1915
Subg. Amphithalmus (Pisinna) Monterosato 1878
G. Merelina Iredale 1915
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Subg. Merelina (Linemera) Finlay 1924
Subg. Merelina (Merelina) Iredale 1915
G. Parashiela Laseron 1951
G. Rissoina d'Orbigny 1840
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Subg. Rissoina (Phosinella) Mörch 1876
Subg. Rissoina (Rissoina) d'Orbigny 1840
Subg. Rissoina (Rissolina) Gould 1861
Subg. Rissoina (Zebinella) Mörch 1876
G. Zebina Adams and Adams 1854
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Subg. †Zebina (Ailinzebina) Ladd 1966
Subg. Zebina (Cibdezebina) Woodring 1928
Subg. Zebina (Morchiella) Thiele 1925
Fm. Scissurellidae Gray 1847
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G. Scissurella d'Orbigny 1824
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Subg. Scissurella (Scissurella) d'Orbigny 1824
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Scissurella (Scissurella) coronata Watson 1886
Scissurella (Scissurella) declinans Watson 1886
Fm. Trochidae Rafinesque 1815 [top snail]
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G. Astele Swainson 1855
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G. Clanculus Monfort 1810
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Subg. Clanculus (Clanculus) Monfort 1810
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Clanculus (Clanculus) clanguloides Wood 1828
Clanculus (Clanculus) pharaonius Linnaeus 1758
G. Euchelus Philippi 1847
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G. †Fossarina Adams 1864
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G. Gibbula Risso 1826
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G. Isanda Adams and A. 1854
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G. Monilea Swainson 1840
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Subg. Monilea (Monilea) Swainson 1840
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Monilea (Monilea) belcheri Philippi 1849
Monilea (Monilea) lifuanus Fischer 1878
†Monilea (Monilea) marshallensis Ladd 1966
†Monilea (Monilea) mateana Ladd 1934
G. Tectus Monfort 1810
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Subg. Tectus (Tectus) Montfort 1810
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†Tectus (Tectus) bomasensis Martin 1916
Tectus (Tectus) mauritianus Gmelin 1791
Tectus (Tectus) pyramis Born 1778
G. Thalotia Gray 1847
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G. Trochus Linnaeus 1758
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Subg. Trochus (Trochus) Linnaeus 1758
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Trochus (Trochus) histrio Reeve 1848
Trochus (Trochus) incrassatus Lamarck 1822
Trochus (Trochus) maculatus Linnaeus 1758
G. Turcica Adams 1854
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Fm. Turbinidae Rafinesque 1815
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G. Arene Adams and Adams 1854
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G. Astraea Röding 1798
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Subg. Astraea (Astralium) Link 1807
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†Astraea (Astralium) eniwetokensis Ladd 1966
Astraea (Astralium) rhodostomus Lamarck 1822
†Astraea (Astralium) waluensis Ladd 1966
Subg. Astraea (Bellastraea) Iredale 1924
G. Leptothyra Pease 1869
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Leptothyra candida Pease 1860
Leptothyra inepta Gould 1861
Leptothyra maculosa Pease 1868
G. Liotina Fischer 1885
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G. Turbo Linnaeus 1758
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Subg. Turbo (Marmarostoma) Swainson 1829
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Turbo (Marmarostoma) argyrostomus Linnaeus 1758
Turbo (Marmarostoma) chrysostomus Linnaeus 1758
†Turbo (Marmarostoma) perlatus Abrad 1946
Turbo (Marmarostoma) setosus Gmelin 1791
Fm. Adeorbidae Monterosato 1884
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G. Cochliolepis Stimpson 1858
G. Haplocochlias Carpenter 1864
G. Leucorhynchia Crosse 1867
G. Lophocochlias Pilsbry 1921
G. Lydiphnis Melvill
G. Munditiella Kuroda and Habe 1954
G. Solariorbis Conrad 1865
G. Teinostoma Adams and Adams 1853
G. Vitrinella Adams 1850
Invalid names: Vitrinellidae Bush 1897 [synonym]