Classification of Stewart 1927

G. †Discohelix Dunker 1847
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†Discohelix leana Gabb 1864
G. †Straparollus de Montfort 1810
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G. Astraea Röding 1798
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Subg. Astraea (Pachypoma) Gray 1850
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G. †Ataphrus Gabb 1869
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†Ataphrus compactus Gabb 1864
†Ataphrus crassus Gabb 1869
G. Margarites Gray 1847
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Subg. †Margarites (Atira) Stewart 1927
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G. Solariella Wood 1842
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†Solariella anguista Gabb 1869
†Solariella crenulata Gabb 1864
G. †Velates Montfort 1810
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†Velates cuneatus Gabb 1864
G. †Amaurellina Fischer 1885
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†Amaurellina moragai Stewart 1927
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Invalid names: Natica alveata Conrad 1855 [replaced]
G. †Ampullina Férussac 1822
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†Ampullina avellana Gabb 1864
†Ampullina oviformis Gabb 1864
G. †Anchura Conrad 1860
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†Anchura angulata Gabb 1864
†Anchura carinifera Gabb 1869
†Anchura falciformis Gabb 1864
G. †Araeodactylus Harris and Burrows 1891
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G. †Atresius Gabb 1869
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†Atresius liratus Gabb 1869
G. Bittium Gray 1847
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†Bittium asperum Gabb 1861
G. Calyptraea Lamarck 1799
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†Calyptraea diegoana Conrad 1855
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Invalid names: Calyptraea calabasasensis Nelson 1925 [synonym], Calyptraea washingtonensis Weaver 1916 [synonym], Galerus excentricus Gabb 1864 [synonym]
Calyptraea mamillaris Broderip 1834
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Invalid names: Trochita inornata Gabb 1869 [synonym]
G. Cerithium Bruguière 1789
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†Cerithium dumblei Dickerson 1916
G. †Conchothyra Hutton 1877
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†Conchothyra hamula Gabb 1864
G. Crepidula Lamarck 1799
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†Crepidula pileum Gabb 1864
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Invalid names: Crepidula dickersoni Weaver and Palmer 1922 [synonym], Crepidula inornata Dickerson 1916 [synonym]
Invalid names: Crepidula (Spirocrypta) Gabb 1864 [invalid subgroup]
G. Cypraea Linnaeus 1758 [cowry]
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†Cypraea castacensis Stewart 1927
†Cypraea mathewsonii Gabb 1869
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Invalid names: Cypraea kerniana Anderson and Hanna 1925 [synonym]
G. †Ectinochilus Cossmann 1889
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Subg. †Ectinochilus (Dasyostoma) Stewart 1927
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G. Epitonium Bolten 1798
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Subg. †Epitonium (Confusiscala) de Boury 1909
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G. Euspira Agassiz 1837
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†Euspira nuciformis Gabb 1864
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Invalid names: Lunatia cowlitzensis Dickerson 1915 [synonym]
G. †Ficopsis Conrad 1866
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†Ficopsis hornii Gabb 1864
†Ficopsis remondii Gabb 1864
G. Ficus Röding 1798
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†Ficus mamillatus Gabb 1864
†Ficus modestus Conrad 1848
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Invalid names: Ficus pyriformis Gabb 1869 [synonym]
G. Galeodea Link 1807
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G. Globularia Swainson 1840
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†Globularia hannibali Dickerson 1914
G. Gyrineum Link 1807
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G. †Gyrodes Conrad 1860
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†Gyrodes conradiana Gabb 1864
Gyrodes expansa Gabb 1864
G. †Lacunaria Conrad 1866
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†Lacunaria striata Gabb 1869
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Invalid names: Gyrodes insecuris Hanna 1924 [synonym], Sinum dickersoni Waring 1917 [synonym]
G. †Liocium Gabb 1869
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†Liocium punctatum Gabb 1869
G. Littorina Ferussac 1821
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†Littorina remondii Gabb 1866
G. †Lysis Gabb 1864
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†Lysis duplicosta Gabb 1864
G. Mesalia Gray 1847
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†Mesalia martinezensis Gabb 1869
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Invalid names: Turritella maccreadyi Waring 1914 [synonym]
G. Natica Scopoli 1777
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†Natica uvasana Gabb 1864
G. Neverita Risso 1826
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†Neverita globosa Gabb 1869
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Invalid names: Natica fiasco Hanna 1924 [synonym]
†Neverita secta Gabb 1864
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Invalid names: Neverita weaveri Dickerson 1915 [synonym]
G. Niso Risso 1826
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†Niso polita Gabb 1864
G. †Olequahia Stewart 1927
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†Olequahia hornii Gabb 1864
G. †Paladmete Gardner 1916
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†Paladmete perforata Gabb 1864
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Invalid names: Neptunea hoffmannii Gabb 1864 [synonym]
G. †Perissitys Stewart 1927
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G. Polinices Monfort 1810 [moon snail]
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†Polinices hornii Gabb 1864
G. †Potamides Brongniart 1810
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†Potamides diadema Gabb 1864
†Potamides tenuis Gabb 1864
G. †Priscoficus Conrad 1866
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†Priscoficus caudatus Gabb 1869
G. Sinum Röding 1798
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†Sinum obliquum Gabb 1864
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Invalid names: Sinum coryliforme Anderson and Hanna 1925 [synonym], Sinum occidentis Weaver and Palmer 1922 [synonym]
Sinum scopulosum Conrad 1849
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Invalid names: Sinum (Sigaretus) trigenarium Trask 1922 [synonym], Sinum californicum Oldroyd 1917 [synonym], Sinum planicostum Gabb 1869 [synonym]
G. †Tessarolax Gabb 1864
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†Tessarolax bicarinata Deshayes in Leymerie 1842
†Tessarolax distorta Gabb 1864
G. Turritella Lamarck 1799 [turret shell]
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†Turritella chicoensis Gabb 1864
†Turritella inezana Conrad 1857
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Invalid names: Turritella hoffmannii Gabb 1866 [synonym]
†Turritella robusta Gabb 1864
†Turritella uvasana Conrad 1855
G. †Brachysphingus Gabb 1869
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†Brachysphingus gabbi Stewart 1927
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Invalid names: Brachysphingus liratus Gabb 1864 [replaced]
G. †Bruclarkia Trask 1926
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†Bruclarkia gravida Gabb 1866
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Invalid names: Agasoma gravidum multinodosum Clark 1918 [invalid subgroup]
G. Buccinofusus Conrad 1868
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G. Cancellaria Lamarck 1799
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†Cancellaria vetusta Gabb 1866
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Invalid names: Cancellaria andersoni Clark 1918 [synonym], Cancellaria ramonensis Clark 1918 [synonym]
G. Colus Röding 1798
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G. Conus Linnaeus 1758
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†Conus hornii Gabb 1864
Conus remondii Gabb 1864
G. †Cophocara Stewart 1927
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†Cophocara stantoni Stewart 1927
G. †Eripachya Gabb 1869
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†Eripachya ponderosa Gabb 1864
G. †Exilia Conrad 1860
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†Exilia diaboli Gabb 1864
†Exilia microptygma Gabb 1864
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Invalid names: Exilia waringi Dickerson 1915 [synonym]
G. Mitra Lamarck 1798
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†Mitra cretacea Gabb 1864
G. Murex Linnaeus 1758
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†Murex whitneyi Gabb 1864
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Invalid names: Murex beali Anderson and Hanna 1925 [synonym]
G. †Nekewis Stewart 1927
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†Nekewis io Gabb 1864
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Invalid names: Surcula alizensis Anderson and Hanna 1925 [synonym], Surcula ioformis Anderson and Hanna 1925 [synonym]
G. Neptunea Röding 1798
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†Neptunea altispira Gabb 1869
†Neptunea humerosa Gabb 1869
G. Olivella Swainson 1831
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†Olivella mathewsonii Gabb 1864
G. †Plectocion Stewart 1927
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G. Pseudoliva Swainson 1840
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†Pseudoliva lineata Gabb 1864
G. †Pseudoperissolax Clark 1918
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†Pseudoperissolax blakei Conrad 1855
G. †Pseudotoma Bellardi 1875
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†Pseudotoma remondii Gabb 1866
G. Purpura Bruguière 1789
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†Purpura monoceros Sowerby 1840
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G. †Scobinella Conrad 1848
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Invalid names: Surcula gesteri Dickerson 1916 [synonym]
G. †Strepsidura Swainson 1840
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Invalid names: Strepsidura ficus Gabb 1864 [nomen nudum]
G. †Surculites Conrad 1865
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Invalid names: Bela clathrata Gabb 1869 [synonym], Potamides davisiana Cooper 1894 [synonym]
†Surculites sinuatus Gabb 1864
G. †Sycodes Gabb 1869
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†Sycodes cypraeoides Gabb 1864
G. Terebra Bruguière 1789
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†Terebra californica Gabb 1869
G. Typhis Montfort 1810
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†Typhis antiquus Gabb 1864
G. †Volutoderma Gabb 1877
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†Volutoderma averillii Gabb 1864
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Invalid names: Volutilithes navarroensis Gabb 1864 [synonym]
G. †Whitneyella Stewart 1927
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†Whitneyella martinez Gabb 1864
†Whitneyella sinuata Gabb 1864
Invalid names: Fusus martinezensis Weaver 1905 [nomen nudum]
G. †Abderospira Dall 1896
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†Abderospira hornii Gabb 1864
G. †Actaeonella d'Orbigny 1843
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†Actaeonella oviformis Gabb 1869
G. †Acteonina d'Orbigny 1850
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†Acteonina calafia Stewart 1927
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Invalid names: Acteonina pupoides Gabb 1864 [replaced]
†Acteonina californica Gabb 1864
G. †Avellana d'Orbigny 1842
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†Avellana mathewsonii Gabb 1864
G. Cylichnina Monterasato 1884
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†Cylichnina tantilla Anderson and Hanna 1925
G. †Megistostoma Gabb 1864
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†Megistostoma gabbiana Stoliczka 1868
G. †Noetca Stewart 1926
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†Noetca gabbi Stewart 1927
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Invalid names: Cylindrites brevis Gabb 1864 [replaced]
G. †Oligoptycha Meek 1876
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†Oligoptycha obliqua Gabb 1864
G. Ringicula Deshayes 1838
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†Ringicula varia Gabb 1864
G. †Tornatellaea Conrad 1860
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†Tornatellaea pinguis Gabb 1864
G. Architectonica Röding 1798 [sundial]
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†Architectonica hornii Gabb 1864
G. †Elimia Adams and Adams 1858
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†Elimia veatchii Gabb 1864
G. Acteon Montfort 1810
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†Acteon politus Gabb 1869
Fm. Cassididae Adams and Adams 1853
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G. †Haydenia Gabb 1864
Fm. Fissurellidae Fleming 1822
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G. Emarginula Lamarck 1801
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†Emarginula gabbi Stewart 1927
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Invalid names: Emarginula radiata Gabb 1864 [replaced]
Subg. Turritella (Haustator) Monfort 1810
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Invalid names: Turritella simiensis Waring 1917 [synonym]
G. Heteroterma Gabb 1869
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Subg. Thais (Stramonita) Schumacher 1817
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Subg. †Architectonica (Stellaxis) Dall 1892
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G. †Molopophorus Gabb 1869
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Invalid names: Molopophorus tejonensis Dickerson 1915 [synonym]
†Molopophorus striatus Gabb 1869
G. Hipponix Defrance 1819
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†Hipponix dichotomus Gabb 1864
G. Pleurofusia de Gregorio 1890
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Subg. †Ficus (Trophosycon) Cooper 1894
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Invalid names: Agasoma (Trophosycon) kernianum Cooper 1894 [synonym], Agasoma stanfordensis Arnold 1908 [synonym]
Fm. Acmaeidae Forbes 1850
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G. Acmaea Eschscholtz 1830 [limpet]
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†Acmaea rudis Gabb 1869
†Acmaea tejonensis Gabb 1869
Subg. †Amaurellina (Euspirocrommium) Sacco 1890
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G. †Drepanochilus Meek 1864
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†Drepanochilus exilis Gabb 1864
G. Arrhoges Gabb 1868
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†Arrhoges californica Gabb 1864
Subg. †Ectinochilus (Cowlitzia) Clark and Palmer 1923
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Subg. †Pugnellus (Gymnarus) Gabb 1869
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G. †Sycum Bayle 1880
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†Sycum mucronatum Gabb 1869
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Invalid names: Chrysodomus burroensis Nelson 1925 [synonym]
†Ranellina pilsbryi Stewart 1927
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Invalid names: Fusus californicus Conrad 1855 [replaced]
†Ficopsis cooperiana Stewart 1927
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Invalid names: Fusus (Hemifusus) cooperii Gabb 1864 [replaced]
Subg. †Bonellitia (Admetula) Cossmann 1889
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Invalid names: Cancellaria stantoni Dickerson 1913 [synonym]
Subg. †Scaphander (Mirascapha) Stewart 1927
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G. †Loxotrema Gabb 1868
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†Loxotrema turritum Gabb 1869
G. †Ventridens Binney and Bland 1869
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†Ventridens lens Gabb 1864