Classification of Coan et al. 2000
G. Tucetona Iredale 1939
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G. Adula Adams and Adams 1857 [datemussel]
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Adula californiensis Philippi 1847
Adula diegensis Dall 1911
Adula gruneri Philippi 1851
G. Crenella Brown 1827
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†Crenella decussata Montagu 1808
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Invalid names: Crenella ecuadoriana Pilsbry and Olsson 1941 [synonym]
G. Lithophaga Röding 1798
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G. Modiolus Lamarck 1801
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G. Mytilus Linnaeus 1758
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Mytilus californianus Conrad 1837
Mytilus edulis Linnaeus 1758
G. Crassostrea Sacco 1897
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Crassostrea columbiensis Hanley 1846
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Invalid names: Crassostrea corteziensis Hertlein 1951 [synonym]
G. Ostrea Linnaeus 1758
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G. Pododesmus Philippi 1837
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G. Americardia Stewart 1930
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Americardia biangulata Broderip and Sowerby 1829
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Invalid names: Cardium magnificum Carpenter 1857 [synonym], Cardium modestum Conrad 1855 [synonym]
G. Amiantis Carpenter 1863
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G. Astarte Sowerby 1816
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Astarte arctica Gray 1824
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Invalid names: Astarte broweri Meek 1923 [synonym], Astarte loxia Dall 1903 [synonym], Astarte rollandi Bernardi 1859 [synonym]
Astarte compacta Carpenter 1864
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Invalid names: Astarte polaris Dall 1903 [synonym], Astarte willetti Dall 1917 [synonym]
Astarte crenata Gray 1824
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Invalid names: Astarte quadrans Gould 1841 [synonym], Astarte semisulcata Moller 1842 [synonym], Astarte subaequilatera Sowerby 1854 [synonym]
Astarte elliptica Brown 1827
Astarte montagui Dillwyn 1817
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Invalid names: Astarte warhami Hancock 1846 [synonym], Nicania striata Leach 1819 [synonym]
Astarte vernicosa Dall 1903
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Invalid names: Astarte aomoriensis Nomura and Hatai 1935 [synonym], Astarte bennettii Dall 1903 [synonym]
G. Calyptogena Dall 1891
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Invalid names: Archivesica Dall 1908 [synonym], Ectenagena Woodring 1938 [synonym], Phraegena Woodring 1938 [synonym]
G. Chione von Mühlfield 1811
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Subg. †Chione (Chione) von Mühlfield 1811
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Chione (Chione) californiensis Broderip and Sowerby I 1835
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Invalid names: Chione (Chione) allisoni Hertlein and Grant 1972 [synonym], Chione succincta Valenciennes 1821 [replaced]
Chione (Chione) undatella Sowerby I 1835
Subg. Chione (Chionista) Keen 1958
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Chione (Chionista) fluctifraga Sowerby II 1853
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Invalid names: Chione cortezi Carpenter 1864 [synonym]
G. Conchocele Gabb 1866
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G. Crassinella Guppy 1874
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Crassinella nuculiformis Berry 1940
Crassinella pacifica Adams 1852
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Invalid names: Crassinella branneri Arnold 1903 [synonym], Crassinella mexicana Pilsbry and Lowe 1932 [synonym], Crassinella quintinensis Manger 1934 [synonym]
G. Diplodonta Bronn 1831
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Diplodonta orbella Gould 1851
Diplodonta parilis Conrad 1848
Diplodonta sericata Reeve 1850
Diplodonta torelli Jeffreys 1876
G. Eucrassatella Iredale 1924
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Eucrassatella fluctuata Carpenter 1864
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Invalid names: Crassatellites lomitensis Oldroyd 1924 [synonym]
G. Glans Mühfeld 1811
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Glans carpenteri Lamy 1922
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Invalid names: Glans minuscula Grant and Gale 1931 [synonym], Lazaria subquadrata Carpenter 1864 [replaced]
G. Globivenus Coen 1934
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Globivenus effosa Philippi 1836
Globivenus fordii Yates 1890
Globivenus rigida Dillwyn 1817
Invalid names: Ventricolaria Keen 1954 [synonym]
G. Laevicardium Swainson 1840
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†Laevicardium ecuadoriale Olsson 1932
Laevicardium elatum Sowerby I 1833
Laevicardium oblongum Gmelin 1791
Invalid names: Exocardium Olsson 1964 [synonym]
G. Lasaea Brown 1827
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Lasaea adansoni Gmelin 1791
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Invalid names: Amphidesma nucleola Lamarck 1818 [synonym], Bornia seminulum Philippi 1836 [synonym], Lasaea cistula Keen 1938 [synonym], Lasaea rubra Montagu 1803 [synonym], Lasaea subviridis Dall 1899 [synonym]
G. Lucinoma Dall 1901
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Lucinoma acutilineatum Conrad 1849
Lucinoma annulatum Reeve 1850
G. Miodontiscus Dall 1903
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Miodontiscus prolongatus Carpenter 1864
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Invalid names: Miodontiscus meridionalis Dall 1916 [synonym], Venericardia nakamurai Yokoyama 1923 [synonym], Venericardia yatesi Arnold 1907 [synonym]
G. Petricola Lamarck 1801
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G. Protothaca Dall 1902
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Subg. Protothaca (Callithaca) Dall 1902
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Protothaca (Callithaca) tenerrima Carpenter 1857
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Invalid names: Paphia restorationensis Frizzell 1930 [synonym]
Subg. Protothaca (Protothaca) Dall 1902
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Protothaca (Protothaca) grata Say 1831
Protothaca (Protothaca) staminea Conrad 1837
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Invalid names: Protothaca ruderata Deshayes 1853 [synonym]
Invalid names: Tropithaca Olsson 1961 [synonym]
G. Pseudochama Odhner 1917
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Pseudochama exogyra Conrad 1837
Pseudochama granti Strong 1934
G. Saxidomus Conrad 1837
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Saxidomus giganteus Deshayes 1839
Saxidomus nuttalli Conrad 1837
G. Solen Linnaeus 1758
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G. Tresus Gray 1853
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Tresus capax Gould 1850
Tresus nuttallii Conrad 1837
Tresus pajaroanus Conrad 1857
G. Cryptomya Conrad 1848
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G. Panomya Gray 1857
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Panomya norvegica Spengler 1793
†Panomya priapus Tilesius 1822
G. Panopea Menard 1807
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G. Penitella Valenciennes 1846
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Penitella penita Conrad 1837
Penitella richardsoni Kennedy 1989
G. Pandora Bruguière 1797
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Subg. Pandora (Pandorella) Conrad 1863
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Pandora (Pandorella) wardiana Adams 1860
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Invalid names: Pandora (Kennerlyia) grandis Dall 1877 [synonym]
G. Thracia Blainville 1824
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Subg. Thracia (Homoeodesma) Fischer 1887
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Thracia (Homoeodesma) conradi Couthouy 1839
Thracia (Homoeodesma) trapezoides Conrad 1849
Subcl. Anomalodesmata Dall 1889
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Or. Pholadomyoida Newell 1965
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Superfm. Pandoroidea Rafinesque 1815
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Fm. Lyonsiidae Fischer 1887
Fm. Pandoridae Rafinesque 1815
Superfm. Thracioidea Stoliczka 1870
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Fm. Laternulidae Hedley 1918
Fm. Periplomatidae Dall 1895
Fm. Thraciidae Stoliczka 1870
Or. Septibranchia Pelseneer 1888
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Subcl. Heterodonta Neumayr 1884
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Or. Myoida Goldfuss 1820
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Invalid names: Myina Newell 1965 [empty], Pholadina Newell 1965 [empty]
Or. Veneroida Gray 1854
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Superfm. Cardioidea Lamarck 1809
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Fm. Cardiidae Lamarck 1809 [cockle]
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Subfm. Clinocardiinae Kafanov 1975
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G. Clinocardium Keen 1936
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Subg. Clinocardium (Ciliatocardium) Kafanov 1974
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Clinocardium (Ciliatocardium) ciliatum Fabricius 1780
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Invalid names: Cardium islandicum Bruguiére 1789 [synonym]
Subg. Clinocardium (Clinocardium) Keen 1936
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Clinocardium (Clinocardium) nuttallii Conrad 1837
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Invalid names: Cardium californianum Conrad 1837 [synonym], Cardium decoratum Grewingk 1850 [synonym]
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Clinocardium (Keenocardium) blandum Gould 1851
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Invalid names: Cardium (Cerastoderma) fucanum Dall 1907 [synonym]
Clinocardium (Keenocardium) californiense Deshayes 1839
G. Serripes Gould 1841
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Subg. Serripes (Serripes) Gould 1841
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Serripes (Serripes) groenlandicus Mohr 1786
Serripes (Serripes) laperousii Deshayes 1839
Superfm. Cyamioidea Philippi 1845
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Fm. Neoleptonidae Thiele 1934
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G. Neolepton Monterosato 1875
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Subg. Neolepton (Neolepton) Monterosato 1875
Subg. Neolepton (Stohleria) Coan 1984
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Neolepton (Stohleria) salmonea Carpenter 1864
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Invalid names: Crassatella marginata Keep 1887 [synonym], Psephidia brunnea Dall 1916 [synonym]
Superfm. Galeommatoidea Gray 1840
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Fm. Galeommatidae Gray 1840
Fm. Lasaeidae Gray 1842
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G. Cymatioa Berry 1963
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Cymatioa electilis Berry 1963
Invalid names: Crenimargo Berry 1963 [replaced]
Invalid names: Kelliidae Forbes and Hanley 1849 [synonym], Montacutidae Clark 1855 [synonym]
Superfm. Glossoidea Gray 1847
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Fm. Vesicomyidae Dall 1908
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G. Vesicomya Dall 1886
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Subg. Vesicomya (Calyptogena) Dall 1891
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†Vesicomya (Calyptogena) gibbera Crickmay 1929
Vesicomya (Calyptogena) pacifica Dall 1891
Superfm. Lucinoidea Fleming 1828
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Fm. Thyasiridae Dall 1901
Fm. Ungulinidae Adams and Adams 1857
Superfm. Mactroidea Lamarck 1809
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Fm. Mactridae Lamarck 1809
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Subfm. Mactrinae Lamarck 1809
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G. Simomactra Dall 1894
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Simomactra dolabriformis Conrad 1867
Simomactra falcata Gould 1850
Invalid names: Symmorphomactra [synonym]
G. Mactromeris Conrad 1868
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Mactromeris catilliformis Conrad 1867
Mactromeris hemphillii Dall 1894
Mactromeris polynyma Stimpson 1860
Superfm. Tellinoidea Blainville 1814
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Fm. Donacidae Fleming 1828
Fm. Psammobiidae Fleming 1828
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G. Nuttallia Dall 1900
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Nuttallia nuttallii Conrad 1837
Invalid names: Hainania Scarlato 1965 [synonym]
Fm. Semelidae Stoliczka 1870
Fm. Solecurtidae d'Orbigny 1846
Fm. Tellinidae Blainville 1814 [tellin clam]
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Subfm. †Macominae Olsson 1961
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G. Leporimetis Iredale 1930
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Leporimetis cognata Pilsbry and Vanatta 1902
Leporimetis obesa Deshayes 1855
Leporimetis spectabilis Hanley 1846
Invalid names: Florimetis Olsson and Harbison 1953 [synonym]
G. Macoma Leach 1819
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Subg. Macoma (Macoma) Leach 1819
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Macoma (Macoma) brota Dall 1916
Macoma (Macoma) crassula Deshayes 1855
Macoma (Macoma) elimata Dunnill and Coan 1968
Macoma (Macoma) golikovi Scarlato and Kafanov 1988
Macoma (Macoma) incongrua Martens 1865
Macoma (Macoma) lama Bartsch 1929
Macoma (Macoma) lipara Dall 1916
Macoma (Macoma) loveni Johnstrup 1882
Macoma (Macoma) middendorffi Dall 1884
Macoma (Macoma) moesta Deshayes 1855
Macoma (Macoma) torelli Johnstrup 1882
†Macoma (Macoma) twinensis Clark 1925
Subg. Macoma (Psammacoma) Dall 1900
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Macoma (Psammacoma) acolasta Dall 1921
Macoma (Psammacoma) carlottensis Whiteaves 1880
Macoma (Psammacoma) yoldiformis Carpenter 1864
Macoma balthica Linnaeus 1758
Macoma inquinata Deshayes 1855
Macoma nasuta Conrad 1837
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Invalid names: Macoma addicotti Nikas 1977 [synonym], Macoma jacalitosana Arnold 1909 [synonym], Macoma kelseyi Dall 1900 [synonym]
Subfm. †Tellininae Blainville 1814
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G. Tellina Linnaeus 1758
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Subg. Tellina (Angulus) Megerle 1811
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Tellina (Angulus) cadieni Coan et al. 2000
Tellina (Angulus) carpenteri Dall 1900
Tellina (Angulus) meropsis Dall 1900
Tellina (Angulus) modesta Carpenter 1864
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Invalid names: Tellina (Oudardia) buttoni Dall 1900 [synonym]
Subg. Tellina (Peronidia)
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†Tellina (Peronidia) aragonia Dall 1909
Tellina (Peronidia) bodegensis Hinds 1844
Subg. Tellina (Tellinella) Mörch 1853
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Tellina (Tellinella) idae Dall 1891
†Tellina (Tellinella) insurata Hanna 1924
†Tellina (Tellinella) tenuilineata Clark 1918
Tellina radiata Linnaeus 1758
Invalid names: Carditoidea Fleming 1820 [empty]
Subfm. Laevicardiinae Keen 1936
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G. Nemocardium Meek 1876
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Subg. Nemocardium (Keenaea) Habe 1951
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Nemocardium (Keenaea) centifilosum Carpenter 1864
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Invalid names: Cardium richardsoni Whiteaves 1878 [synonym]
Subfm. Pitarinae Stewart 1930
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G. Nutricola Bernard 1982
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Nutricola lordi Baird 1863 [lord dwarf-venus]
Nutricola tantilla Gould 1853
Invalid names: Psephidia Dall 1902 [replaced]
Subcl. Pteriomorphia Beurlen 1944
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Or. Arcoida Stoliczka 1871
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Superfm. Arcoidea Lamarck 1809
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Fm. Arcidae Lamarck 1809
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Subfm. Anadarinae Reinhart 1935
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G. Anadara Gray 1847 [ark]
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Invalid names: Cara Gray 1847 [synonym], Esmerarca Olsson 1961 [synonym], Rasia Gray 1857 [synonym]
G. Bathyarca Kobelt 1891
G. Bentharca Verrill and Bush 1898
Subfm. Arcinae Lamarck 1809
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G. Barbatia Gray 1842
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Subg. Barbatia (Cucullaearca) Conrad 1865
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Barbatia (Cucullaearca) reeveana d'Orbigny 1846
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Invalid names: Barbatia (Cucullaearca) bramkampi Durham 1950 [synonym]
Invalid names: Barbatiidae Scarlato and Starobogatov 1979 [synonym], Bathyarcidae Scarlato and Starobogatov [synonym]
Fm. Noetiidae Stewart 1930
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Superfm. Limopsoidea Dall 1895
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Fm. Limopsidae Dall 1895
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G. Empleconia Dall 1908
G. Nipponolimopsis Habe 1951
Invalid names: Aupouriidae Scarlato and Starobogatov 1979 [synonym]
Superfm. Philobryoidea Bernard 1897
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Invalid names: Glycymeridoidea Newton 1916 [empty]
Or. Limoida Moore 1952
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Or. Ostreoida Fërussac 1822 [oyster]
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Subor. Pectinina Waller 1978
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Superfm. Pectinoidea Rafinesque 1815
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Fm. Pectinidae Wilkes 1810 [scallop]
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Subfm. Camptonectinae Habe 1977
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G. Ciclopecten Seguenza 1877
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Ciclopecten neoceanicus Dall 1908
Invalid names: Hyalopecten Verrill 1897 [synonym]
Subfm. Chlamydinae von Teppner 1922
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Tr. Aequipectini Nordsieck 1969
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G. Argopecten Monterosato 1889 [calico scallop]
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Argopecten ventricosus Sowerby 1842
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Invalid names: Pecten (Plagioctenium) calli Hertlein 1925 [synonym], Pecten (Plagioctenium) subventricosus Dall 1898 [synonym], Pecten circularis Sowerby 1835 [synonym], Pecten compactus Dall 1898 [synonym], Pecten fililextus Li 1930 [synonym], Pecten inca d'Orbigny 1846 [synonym], Pecten newsomi Arnold 1903 [synonym]
Invalid names: Plagioctenium Dall 1898 [synonym]
G. Leptopecten Verrill 1897
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Leptopecten latiauratus Conrad 1837
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Invalid names: Pecten (Chlamys) bellilamellatus Arnold 1906 [synonym], Pecten tunica Philippi 1844 [synonym]
Tr. Chlamydini von Teppner 1922
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G. Chlamys Röding 1798
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†Chlamys albida Arnold 1906
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Invalid names: Chlamys (Chlamys) wainwrightensis MacNeil 1967 [synonym], Chlamys hanaishiensis Masuda 1962 [synonym]
†Chlamys behringiana Middendorff 1849
Chlamys hastata Sowerby 1842
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Invalid names: Chlamys herica Gould 1850 [synonym], Chlamys pugetensis Oldroyd 1920 [synonym], Pecten (Chlamys) lawsoni Arnold 1906 [synonym], Pecten altiplectus Conrad 1856 [synonym], Pecten altiplicatus Conrad 1857 [synonym], Pecten newcombi Oldroyd 1938 [synonym]
Chlamys rubida Hinds 1845
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Invalid names: Chlamys durhami Adegoke 1969 [synonym], Chlamys picoensis Waterfall 1929 [synonym], Pecten (Chlamys) jordani Arnold 1903 [synonym], Pecten (Chlamys) venturaensis Waterfall 1929 [synonym], Pecten hindsii Carpenter 1864 [synonym], Pecten kincaidi Oldroyd 1920 [synonym]
Tr. Crassadomini Waller 1993
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G. Crassadoma Bernard 1986
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Crassadoma gigantea Gray 1825
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Invalid names: Hinnita poulsoni Conrad 1834 [synonym], Hinnites crassa Conrad 1857 [synonym], Pecten (Chlamys) multirugosus Gale 1928 [synonym]
Tr. Fortipectinini Masuda 1963
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G. Patinopecten Dall 1898
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Patinopecten caurinus Gould 1850
Invalid names: Blackenhornia Teppner 1902 [synonym], Lohripecten Kafanov 1992 [synonym], Platinopecten Dall 1898 [misspelling]
Tr. Mimachlamydini Waller 1993
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Invalid names: Hinnitinae Habe 1977 [synonym], Patinopectininae MacNeil 1967 [synonym], Pedinae Bronn 1862 [synonym]
Subfm. Pectininae Wilkes 1810
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G. Euvola Dall 1898
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Subg. †Euvola (Leopecten) Masuda 1971
Euvola vogdesi Arnold 1906
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Invalid names: Pecten (Euvola) cataractes Dall 1914 [synonym], Pecten (Pecten) heimi Hertlein 1925 [synonym], Pecten dentatus Sowerby 1842 [synonym]
Euvola ziczac Linnaeus 1758
G. Oppenheimopecten von Teppner 1922
Fm. Propeamussiidae Abbott 1954 [mud scallop]
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G. Cyclopecten Verrill 1897
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†Cyclopecten incongruus Dall 1916 [incongruous glass-scallop]
Invalid names: Xenamussium Oyama 1944 [synonym]
G. Parvamussium Sacco 1897
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Parvamussium alaskensis Dall 1871
†Parvamussium duodecimlamellatum Bronn 1832
Invalid names: Polynemamussium Habe 1951 [synonym], Squamamussium Oyama 1944 [synonym], Variamussium Sacco 1897 [synonym]
G. Propeamussium de Gregorio 1884
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Propeamussium meridionale Smith 1885
Invalid names: Micramussium Oyama 1951 [synonym], Paramusium Verrill 1897 [synonym], Pseudopalliorum Oyama 1944 [synonym]
Invalid names: Amussiidae Ridewood 1903 [synonym]
Or. Pterioida Newell 1965
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Fm. Isognomonidae Woodring 1925
Subor. †Pteriina Newell 1965
Invalid names: Pinnina Waller 1978 [empty]
Subfm. †Trachycardiinae Stewart 1930
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G. Acrosterigma Dall 1900
G. Trachycardium Mörch 1853
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Subg. Trachycardium (Dallocardia) Stewart 1930
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Trachycardium (Dallocardia) quadragenarium Conrad 1837
Subg. Trachycardium (Trachycardium) Mörch 1853
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Trachycardium (Trachycardium) consors Sowerby I 1833
Trapezium oblongum Linnaeus 1758
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Invalid names: Trapezium californica Conrad 1837 [synonym]
Subfm. Venerinae Rafinesque 1815
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Subcl. Protobranchia Pelseneer 1889
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Or. Nuculoida Dall 1889
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Superfm. Nuculanoidea Adams and Adams 1858
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Subfm. Malletiinae Adams and Adams 1858
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G. Katadesmia Dall 1908
G. Malletia des Moulins 1832
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Invalid names: Bathymalletia Kuroda and Habe 1971 [synonym], Malletiella Soot-Ryen 1957 [synonym], Minormalletia Dall 1908 [synonym], Mulidentata Kristofovich 1964 [synonym], Pseudomalletia Fischer 1886 [synonym], Solenella Sowerby 1833 [synonym]
Fm. Neilonellidae Schileyko 1989
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G. Austrotindaria Fleming 1948
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Austrotindaria gibbsii Dall 1897
Invalid names: Pseudotindaria Sanders and Allen 1977 [synonym]
G. Neilonella Dall 1881
Fm. Nuculanidae Adams and Adams 1858 [pointed nut clam]
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Subfm. Bathyspinulinae Coan and Scott 1997
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G. Bathyspinula Filatova 1958
Invalid names: Spirulinae Allen and Sanders 1982 [synonym]
Invalid names: Ledidae Adams and Adams 1858 [synonym], Poroledidae Scarlato and Starobogatov 1979 [empty]
Fm. Siliculidae Allen and Sanders 1973
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G. Silicula Jeffreys 1879
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Silicula alleni Bernard 1989
Silicula sandersi Bernard 1989
Invalid names: Radiidens Egorova and Starobogatov 1975 [synonym]
Invalid names: Radiidentidae Egoreva and Starobogatov 1975 [synonym]
Fm. Tindariidae Verrill and Bush 1897
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G. Tindaria Bellardi 1875
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Tindaria kennerlyi Dall 1897
Invalid names: Tyndaria Bellardi 1875 [misspelling]
Fm. Yoldiidae Habe 1977
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Subfm. Yoldiinae Dall 1908
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G. Yoldia Möller 1842
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Subg. Yoldia (Kalayoldia) Grant, IV and Gale 1931
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Yoldia (Kalayoldia) cooperii Gabb 1865
†Yoldia (Kalayoldia) oregona Shumard 1858
Invalid names: Yoldiellinae Allen and Hannah 1986 [empty]
Superfm. Nuculoidea Gray 1824
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Fm. Nuculidae Gray 1824 [nut clam]
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G. Acila Adams and Adams 1858 [divaricate nutclam]
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Subg. Acila (Truncacila) Grant and Gale 1931
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Acila (Truncacila) castrensis Hinds 1843
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Invalid names: Acila (Truncacila) beringiana Slodkevisch 1967 [synonym], Acila empirensis Howe 1922 [synonym], Nucula lyalli Baird 1863 [synonym]
Acila divaricata Hinds 1843
G. Ennucula Iredale 1931
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Ennucula cardara Dall 1916
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Invalid names: Leda phenaxia Dall 1916 [synonym], Nucula (Leionucula) yaquinae Bernard 1983 [synonym]
Ennucula linki Dall 1916
Ennucula tenuis Montagu 1808
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Invalid names: Leionucula ovatotruncata Scarlato 1981 [synonym], Nucula (Ennucula) balboana Hertlein and Grant 1972 [synonym], Nucula (Ennucula) microsperma Berry 1947 [synonym], Nucula (Leionucula) leptodonta Bernard 1983 [synonym], Nucula bellotii Adams 1856 [synonym], Nucula quirica Dall 1916 [synonym]
G. Nucula Lamarck 1799
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Subg. Nucula (Lamellinucula) Schenck 1944
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Nucula (Lamellinucula) carlottensis Dall 1897
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Invalid names: Nucula (Lamellinucula) keenae Bernard 1983 [synonym], Nucula (Lamellinucula) takashii Bernard 1983 [synonym]
Nucula (Lamellinucula) exigua Sowerby 1833
Nucula (Lamellinucula) tamatavica Odhner 1943
Nucula hanleyi Winckworth 1931
Nucula nucleus Linnaeus 1758
Superfm. Pristiglomoidea Sanders and Allen 1973
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Fm. Pristiglomidae Sanders and Allen 1973
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Subfm. Pristiglominae Verrill and Bush 1898
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Invalid names: Glomidae Verrill and Bush 1898 [replaced], Setiglominae Schileyko 1983 [empty]
Or. Solemyoida Dall 1889
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Superfm. Manzanelloidea Chronic 1952
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Fm. Manzanellidae Chronic 1952
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Invalid names: Huxleyidae Scarlato and Starobogatov 1971 [synonym], Nucinellidae Vokes 1956 [synonym]
Invalid names: Nucinelloidea Vokes 1956 [synonym]
Superfm. Solemyoidea Adams and Adams 1857
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Fm. Solemyidae Adams and Adams 1857 [Awning Clam]
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G. Acharax Dall 1908
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G. Solemya Children 1823
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Subg. Solemya (Petrasma) Dall 1908
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Solemya (Petrasma) borealis Totten 1834
Solemya (Petrasma) valvulus Carpenter 1864
Solemya johnsoni Dall 1891
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Invalid names: Solemya agassizii Dall 1908 [synonym], Solemya tokunagai Yokoyama 1925 [synonym]
Nucula exigua Sowerby 1833
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Invalid names: Nucula suprastriata Arnold 1903 [synonym]
Subg. †Glycymeris (Glycymerita) Finlay and Marwick 1937
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†Glycymeris (Glycymerita) major Stanton 1896
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Invalid names: Axinea barbarensis Conrad 1856 [synonym]
Subfm. Nuculaninae Adams and Adams 1858
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G. Nuculana Link 1807
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Subg. Nuculana (Jupiteria) Bellardi 1875
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Nuculana (Jupiteria) cellulita Dall 1896
Nuculana (Jupiteria) elenensis Sowerby I 1833
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Invalid names: Leda acapulcensis Pilsbry and Lowe 1932 [synonym]
Nuculana (Jupiteria) penderi Dall and Bartsch 1910
Nuculana (Jupiteria) taphria Dall 1896
Nuculana pernula Müller 1779
Invalid names: Crassoleda Savitskii 1969 [synonym], Leda Schumacher 1817 [synonym], Thestyleda Iredale 1929 [synonym]
Arca pernula Müller 1779
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Invalid names: Nuculana rostrata Bruguiére 1789 [synonym]
Subg. Nuculana (Nuculana) Link 1807
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Nuculana (Nuculana) hamata Carpenter 1864
Nuculana (Nuculana) leonina Dall 1896
Leda leonina Dall 1896
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Invalid names: Leda amiata Dall 1916 [synonym], Leda liogona Dall 1916 [synonym]
Nucula hyperborea Gould 1841
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Invalid names: Nucula amygdalea Valenciennes 1846 [synonym], Yoldia bartschi Scarlato 1981 [synonym], Yoldia gardneri Oldroyd 1935 [synonym], Yoldia norvegica Dautzenberg and Fischer 1912 [synonym]
Nucula myalis Couthouy 1838
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Invalid names: Nucula cascoensis Mighels and Adams 1842 [synonym], Yoldia vancouverensis Smith 1880 [synonym]
Yoldia seminuda Dall 1871
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Invalid names: Yoldia (Cnesterium) johanni Dall 1925 [synonym], Yoldia (Cnesterium) strigata Dall 1909 [synonym], Yoldia ensifera Dall 1897 [synonym], Yoldia imleri Waterfall 1929 [synonym], Yoldia keppeliana Sowerby 1904 [synonym], Yoldia keppeliana Sowerby 1904 [synonym], Yoldia kuluntunensis Slodkevich 1936 [synonym]
†Nucula thraciaeformis Storer 1838
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Invalid names: Microyoldia ochotensis Scarlato 1981 [synonym], Nucula groenlandica Posselt 1898 [synonym], Nucula navicularis Couthouy 1831 [synonym], Portlandia dalli Krause 1885 [synonym], Yoldia angularis Möller 1842 [synonym], Yoldia regularis Verrill 1884 [synonym], Yoldia scapha Yokoyama 1926 [synonym], Yoldia secunda Dall 1916 [synonym]
Yoldia montereyensis Dall 1893
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Invalid names: Yoldia beringiana Dall 1916 [synonym]
Yoldia nana Sars 1865
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Invalid names: Yoldiella fraterna Verrill and Bush 1898 [synonym]
Tindaria compressa Dall 1909
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Invalid names: Tindaria panamensis Dall 1908 [synonym]
Malletia (Tindaria) kennerlyi Dall 1897
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Invalid names: Tindaria dicofania Dall 1916 [synonym], Tindaria martiniana Dall 1916 [synonym]
Pecten ventricosus Sowerby 1842
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Invalid names: Pecten solidulus Reeve 1853 [synonym]
Pecten latiauratus Conrad 1837
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Invalid names: Pecten monotimeris Conrad 1837 [synonym]
Subfm. Crenellinae Gray 1840
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G. Solamen Iredale 1924 [crenella]
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Solamen columbiana Dall 1897
Solamen leana Dall 1897
Solamen megas Dall 1902
Solamen rex Iredale 1924
Invalid names: Megacrenella Habe and Ito 1965 [synonym]
G. Vilasina Scarlato 1960 [crenella]
Subg. Limatula (Limatula) Wood 1839
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Limatula (Limatula) attenuata Dall 1916
Limatula (Limatula) saturna Bernard 1978
Astarte borealis Chemnitz 1784
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Invalid names: Astarte fabula Reeve 1855 [synonym], Astarte leffingwelli Dall 1920 [synonym]
Subg. Cyclocardia (Cyclocardia) Conrad 1867
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Cyclocardia (Cyclocardia) bailyi Burcj 1944
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Invalid names: Cardita longini Baily 1945 [synonym]
Cyclocardia (Cyclocardia) barbarensis Stearns 1890
†Cyclocardia (Cyclocardia) californica Dall 1903
Cyclocardia (Cyclocardia) crassidens Broderip and Sowerby 1829
Cyclocardia (Cyclocardia) crebricostata Krause 1885
†Cyclocardia (Cyclocardia) occidentalis Conrad 1855
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Invalid names: Cardita monilicosta Gabb 1864 [synonym]
Cyclocardia (Cyclocardia) ventricosa Gould 1850
G. Parvilucina Dall 1901
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Parvilucina approximata Dall 1901
Parvilucina tenuisculpta Carpenter 1864
Subg. Periploma (Periploma) Schumacher 1816
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Periploma (Periploma) planiuscula Sowerby I 1834
Subg. Macoma (Rexithaerus) Conrad 1869
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Macoma (Rexithaerus) dexioptera Baxter 1977
Macoma (Rexithaerus) expansa Carpenter 1864
†Macoma (Rexithaerus) indentata Carpenter 1864
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Invalid names: Macoma vanvlecki Arnold 1909 [synonym]
Macoma (Rexithaerus) secta Conrad 1837
Subg. Pitar (Pitar) Römer 1857
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Pitar (Pitar) helenae Olsson 1961
Pitar (Pitar) newcombianus Gabb 1865
Subg. Semele (Semele) Scuhmacher 1817
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Semele (Semele) decisa Conrad 1837
Semele (Semele) rubropicta Dall 1871
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Invalid names: Semele ashleyi Hertlein and Grant 1972 [synonym]
Subg. Gastrochaena (Rocellaria) Blainville 1828
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Gastrochaena (Rocellaria) ovata Sowerby 1834
Subg. Modiolus (Modiolus) Lamarck 1799
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Modiolus (Modiolus) capax Conrad 1837
Modiolus (Modiolus) carpenteri Soot-Ryen 1963
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Invalid names: Modiolus fornicata Carpenter 1864 [replaced]
Modiolus (Modiolus) modiolus Linnaeus 1758
G. Mactrotoma Dall 1894 [surfclam]
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Trachycardium (Mexicardia) procerum Sowerby 1833
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Invalid names: Cardium panamense Sowerby I 1833 [synonym]
Gari (Gobraeus) furcata Hinds 1845
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Invalid names: Gari endentula Gabb 1869 [synonym]
Laevicardium substriatum Conrad 1837
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Invalid names: Cardium cruentatum Gould 1855 [synonym], Cardium elenense Sowerby II 1840 [synonym], Laevicardium apicinum Carpenter 1864 [synonym], Laevicardium pedernalense Pilsbry and Olsson 1941 [synonym]
Subg. Vesicomya (Vesicomya) Dall 1886
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Vesicomya (Vesicomya) atlantica Smith 1885