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abbotti, Mactromeris abbotti Wiedley, 1928 † (FOSSIL)
abbreviata, Mactra abbreviata Lamarck, 1818
abbreviata meritriciformis, Mactra abbreviata meritriciformis Reeve, 1854
abbreviata obesa, Mactra abbreviata obesa Reeve, 1854
abercrombiei, Raeta abercrombiei Melvill, 1893 - syn of: Raeta pellicula (Reeve, 1854)
achatina, Mactra achatina Holton, 1802
achatina maculosa, Mactra achatina maculosa Lamarck, 1818
achatina ornata, Mactra achatina ornata Gray, 1837
acinaces, Zenatia acinaces (Quoy & Gaimard, 1835)
acinaces cumingiana, Zenatia acinaces cumingiana Deshayes, 1854
acuminella, Maorimactra acuminella Finlay, 1930 † (FOSSIL)
acutecarinata, Andrusella acutecarinata (Andrussov, 1902) † (FOSSIL)
acutirostrata, Mactromeris acutirostrata Packard, 1916 † (FOSSIL)
acutissima, Scissodesma acutissima (Cosel, 1995)
adamsi, Spisula adamsi Olsson, 1961
adamsoni, Mactra adamsoni Philippi, 1848 - syn of: Mactra glabrata Linnaeus, 1767
adansonii, Mactra adansonii Philippi, 1849 - syn of: Mactra glabrata Linnaeus, 1767
adansonii decora, Mactra adansonii decora Turton, 1932 - syn of: Mactra ochracea Von Martens, 1880
adansonii elongata, Mactra adansonii elongata Turton, 1932 - syn of: Mactra ochracea Von Martens, 1880
addicotti, Mactromeris addicotti Kanno, 1971 † (FOSSIL)
adelaidae, Spisula adelaidae Angas, 1865 - syn of: Anapella cycladea (Lamarck, 1818)
adspersa, Mactra adspersa Dunker, 1849 - syn of: Mactra achatina Holton, 1802
aegyptiaca, Mactra aegyptiaca Dillwyn, 1817 - syn of: Meropesta nicobarica (Gmelin, 1791)
aegyptiaca, Eastonia aegyptiaca Dillwyn, 1817 - syn of: Meropesta nicobarica (Gmelin, 1791)
aequalis, Standella aequalis Webster, 1905 - syn of: Cyclomactra ovata (Gray, 1843)
aequilatera, Crassula aequilatera (Reeve, 1854)
aequilatera, Mactra aequilatera Reeve, 1854 - syn of: Crassula aequilatera (Reeve, 1854)
aequilateralis, Mactra aequilateralis Deshayes, 1854 - syn of: Crassula aequilatera (Reeve, 1854)
aequisulcata, Mactra aequisulcata Sowerby, 1894
africana, Eastonia africana Bartsch, 1915 † - syn of: Eastonia solanderi (Gray, 1837) † (FOSSIL)
alaskana, Mactromeris polynyma alaskana Dall
alaskana, Spisula alaskana Dall, 1894 - syn of: Mactromeris polynyma alaskana (Dall, 1894)
alata, Mactrellona alata (Spengler, 1802)
alba, Mactra alba Lamarck, 1818 - syn of: Mactra stultorum (Linnaeus, 1758)
alba, Mactra alba Wood, 1802 - syn of: Abra alba (Wood, 1802)
albanyana, Lutraria albanyana Turton, 1932 - syn of: Lutraria capensis Reeve, 1854
albaria, Mactromeris albaria (Conrad, 1848) † (FOSSIL)
albertantonorum, Spisula albertantonorum Marquet, 2005 † (FOSSIL)
albina, Leptospisula albina Deshayes, 1832 - syn of: Leptospisula nivea (Gmelin, 1791)
alderi, Lutraria alderi Unknown
alfredensis, Mactra alfredensis Bartsch, 1915 - syn of: Mactrotoma depressa (Spengler, 1802)
allomyax, Tresus allomyax Coan & Valentich-Scott, 2000
alta, Mactra alta Deshayes, 1855
altilunula, Cyclomactra altilunula (Marwick, 1927) † (FOSSIL)
altirostris, Mulinia altirostris Li, 1930 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
ambigua, Mactra ambigua Weinkauff, 1884 - syn of: Mactrotoma compressa (Spengler, 1802)
amygdala, Mactra amygdala Crosse & Fischer, 1864 - syn of: Anapella cycladea (Lamarck, 1818)
anatina, Anatina anatina (Spengler, 1802)
anatina, Mactra anatina Spengler, 1802 - syn of: Anatina anatina (Spengler, 1802)
anatinoides, Raeta anatinoides Reeve, 1854 - syn of: Raeta pellicula (Reeve, 1854)
andamanica, Anatina andamanica Smith, 1904 - syn of: Periploma andamanicum (Smith, 1904)
andamanica, Mactra andamanica Smith, 1904 - syn of: Periploma andamanicum (Smith, 1904)
angolensis, Scissodesma angolensis (Cosel, 1995)
angulata, Mulinia angulata Gray, 1854 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
angulata, Mactra angulata Reeve, 1854 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
angulifera, Mactrotoma angulifera (Reeve, 1854)
angusta, Mactrotoma angusta (Reeve, 1854)
angusta, Lutraria angusta Deshayes, 1830 † (FOSSIL)
angustata, Zenatiopsis angustata Tate, 1879 † (FOSSIL)
angustior, Lutraria angustior Philippi, 1844
annandalei, Meropesta annandalei Preston, 1915 - syn of: Standella pellucida (Gmelin, 1791)
annandalei, Standella annandalei Preston, 1915 - syn of: Standella pellucida (Gmelin, 1791)
anserina, Mactrotoma anserina Guppy, 1874 - syn of: Standella fragilis (Gmelin, 1791)
antecedens, Mactrotoma antecedens (Iredale, 1930)
antiquata, Mactra antiquata Spengler, 1802
aphrodina, Mactra aphrodina Reeve, 1854
apicina, Mactra apicina Reeve, 1854 - syn of: Mactra aphrodina Reeve, 1854
arctata, Mactra arctata Conrad, 1831 - syn of: Mesodesma arctatum (Conrad, 1831)
arcuata, Spisula arcuata (Sowerby, 1817) † (FOSSIL)
arcuata, Anatina arcuata Forbes, 1846
arcuata, Lutraria arcuata Reeve, 1854 - syn of: Lutraria rhynchaena Jonas, 1844
arcuata, Mactra arcuata Sowerby, 1817 † - syn of: Spisula arcuata (Sowerby, 1817) † (FOSSIL)
artensis, Mactra artensis Montrouzier, 1859
artopta, Mactra artopta Woods, 1850 † (FOSSIL)
asperaeformis, Spisula asperaeformis Nomura & Zinbo, 1934
aspersa, Oxyperas aspersa (Sowerby, 1825)
aspersa, Spisula aspersa Sowerby, 1825 - syn of: Oxyperas aspersa (Sowerby, 1825)
asymmetrica, Mactra asymmetrica Krishtofovich, 1954 † (FOSSIL)
atacama, Mactrella atacama Pilsbry & Olsson, 1941 - syn of: Mactrotoma angusta (Reeve, 1854)
atacama, Mactra atacama Pilsbry & Olsson, 1941 - syn of: Mactrotoma angusta (Reeve, 1854)
atlanticola, Mulinia atlanticola Anderson, 1929 † - syn of: Trinitasia sanctiandreae (Maury, 1925) † (FOSSIL)
attenuata, Mactra attenuata Reeve, 1854 - syn of: Mactra cygnus Gmelin, 1791
auca, Mactra auca D'Orbigny, 1842 † (FOSSIL)
ausiensis, Mactromeris ausiensis Krishtofovich, 1994 † (FOSSIL)
austeniana, Mactra austeniana Maury, 1912 † (FOSSIL)
austini, Spisula austini (Lamprell & Whitehead, 1990)
austini, Notospistula austini Lamprell & Whitehead, 1990 - syn of: Spisula austini (Lamprell & Whitehead, 1990)
australis, Lutraria australis Deshayes, 1855 † (FOSSIL)
australis, Mactra australis Lamarck, 1818
australis, Lutraria australis Reeve, 1854 - syn of: Lutraria rhynchaena Jonas, 1844
aviculoides, Avimactra aviculoides Andrussov, 1905 † (FOSSIL)
axiniformis, Mactra axiniformis Tate, 1887 † (FOSSIL)
balcica, Mactra vitaliana balcica Marcarovici (FOSSIL)
barkulensis, Anatina barkulensis Preston, 1915 - syn of: Laternula navicula (Reeve, 1863)
basteroti, Mactra basteroti Mayer, 1853 † (FOSSIL)
belliana, Oxyperas belliana (Oliver, 1915)
bernardi, Oxyperas bernardi (Pilsbry, 1904)
bernayi, Ruellia bernayi (Cossmann, 1886) † (FOSSIL)
berryi, Cymbophora berryi Gardner, 1916 † (FOSSIL)
bicolor, Mulinia bicolor Gray, 1837
biconvexa, Scalpomactra biconvexa Powell & Bartrum, 1929 † (FOSSIL)
bifida, Modiolicola bifida Tanaka, 1961 - syn of: Mactra quadrangularis Reeve, 1854
bilineata, Mactrotoma bilineata Reeve, 1854 - syn of: Standella fragilis (Gmelin, 1791)
bisculpturata, Mactromeris bisculpturata Anderson & Hanna, 1942 † (FOSSIL)
bistrigata, Mulinia bistrigata Mörch, 1860 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
bistrigata, Mactra bistrigata Mörch, 1860 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
blainvillei, Anatina blainvillei Reeve, 1863 - syn of: Laternula anatina (Linnaeus, 1758)
bodmani, Maorimactra bodmani Stilwell & Zinsmeister, 1992 † (FOSSIL)
boisyi, Mactra boisyi Montagu, 1803 - syn of: Abra alba (Wood, 1802)
bonneauii, Mactra bonneauii Bernardi, 1858 - syn of: Mactra quadrangularis Reeve, 1854
boschasina, Anatina boschasina Reeve, 1860 - syn of: Laternula boschasina (Reeve, 1860)
bourguignati, Mactra bourguignati Locard, 1890 - syn of: Mactra stultorum (Linnaeus, 1758)
boysii, Mactra boysii Montagu, 1803 - syn of: Abra alba (Wood, 1802)
bracheon, Raeta bracheon Sturany, 1899 - syn of: Leptomya bracheon (Sturany, 1899)
bradleyi, Mulinia bradleyi Dall, 1894 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
bradleyi, Mulinia bradleyi Dall, 1894 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
branneri, Mulinia cleryana branneri Dall
brasiliana, Mactrotoma brasiliana Lamarck, 1818 - syn of: Standella fragilis (Gmelin, 1791)
braziera, Mactra braziera Smith, 1891
brevirostrata, Mactromeris brevirostrata Packard, 1916 † (FOSSIL)
brevirostris, Anatina brevirostris Brown, 1829 - syn of: Cuspidaria cuspidata (Olivi, 1792)
brombachensis, Spisula brombachensis Schneider & Mandic, 2014 † (FOSSIL)
bruuni, Lutraria bruuni Powell, 1967 - syn of: Lutraria rhynchaena Jonas, 1844
bucklandi, Barymactra bucklandi (Defrance, 1823) † (FOSSIL)
budkeri, Lutraria budkeri Nicklés, 1955
bulgarica, Mactra bulgarica (Toula, 1909) † (FOSSIL)
bullata, Anatina bullata Reeve, 1863 - syn of: Laternula anatina (Linnaeus, 1758)
burdigalensis, Mactra burdigalensis Mayer, 1864 † (FOSSIL)
byronensis, Mulinia byronensis Gray, 1837
caleta, Spisula caleta Olsson, 1928 † (FOSSIL)
californica, Mactrotoma californica (Conrad, 1837)
callistoides, Oxyperas callistoides Olsson, 1928 † (FOSSIL)
caloundra, Mactra caloundra Iredale, 1930 - syn of: Austromactra contraria (Reeve, 1854)
camaronis, Mactromeris camaronis Dall, 1921 - syn of: Mactromeris hemphillii (Dall, 1894)
camaronis, Spisula camaronis Dall, 1921 - syn of: Mactromeris hemphillii (Dall, 1894)
camina, Mulinia camina Pilsbry & Olsson, 1941 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
camina, Mulinia camina Pilsbry & Olsson, 1941 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
campechensis, Mactra campechensis Gray, 1825 - syn of: Raeta plicatella (Lamarck, 1818)
campechensis, Raeta campechensis Gray, 1825 - syn of: Raeta plicatella (Lamarck, 1818)
campechiensis, Raeta campechiensis (Gray, 1825)
canaliculata, Raeta canaliculata Say, 1822 - syn of: Raeta plicatella (Lamarck, 1818)
candida, Mactrotoma candida Lamarck, 1818 - syn of: Standella fragilis (Gmelin, 1791)
candida, Mactra candida Nardo, 1847 - syn of: Mactra stultorum (Linnaeus, 1758)
cantrainei, Mulinia cantrainei Sowerby, 1873 - syn of: Mulinia cleryana (D'Orbigny, 1846)
capax, Tresus capax (Gould, 1850)
capayana, Mactromeris capayana (Vokes, 1939) † (FOSSIL)
capensis, Simomactra capensis (Sowerby, 1892)
capensis, Lutraria capensis Reeve, 1854
capensis, Mactra capensis Sowerby, 1892 - syn of: Simomactra capensis (Sowerby, 1892)
capillacea, Meropesta capillacea (Reeve, 1854)
carinata, Mactrellona carinata Lamarck, 1818 - syn of: Mactrellona alata (Spengler, 1802)
carinata, Mactra carinata Lamarck, 1818 - syn of: Mactrellona alata (Spengler, 1802)
carinulata, Mulinia carinulata Reeve, 1854 - syn of: Mulinia cleryana (D'Orbigny, 1846)
carinulata, Mactra carinulata Reeve, 1854 - syn of: Mulinia cleryana (D'Orbigny, 1846)
carneopicta, Mactra chinensis carneopicta Pilsbry
carneopicta, Mactra carneopicta Pilsbry, 1904 - syn of: Mactra chinensis carneopicta Pilsbry, 1904
carteri, Mactra carteri Beu, 2006 † (FOSSIL)
caspia, Mactra caspia Eichwald † (FOSSIL)
castanea, Spisula castanea Lamarck, 1818 - syn of: Spisula solida (Linnaeus, 1758)
catilliformis, Mactromeris catilliformis (Conrad, 1867)
chemnitzii, Mactra chemnitzii Gray, 1837 - syn of: Mactra antiquata Spengler, 1802
chemnitzii, Lutraria chemnitzii Philippi, 1849 - syn of: Meropesta nicobarica (Gmelin, 1791)
chemnitzii, Eastonia chemnitzii Philippi, 1849 - syn of: Meropesta nicobarica (Gmelin, 1791)
chesapeakensis, Hemimactra chesapeakensis Glenn, 1904 † - syn of: Leptomactra curtidens (Dall, 1898) † (FOSSIL)
chilota, Mulinia chilota Frassinetti, 1997 † (FOSSIL)
chinensis, Mactra chinensis Philippi, 1846
chinensis carneopicta, Mactra chinensis carneopicta Pilsbry, 1904
chionia, Simomactra chionia (Tomlin, 1921)
chionia, Mactrinula chionia Tomlin, 1921 - syn of: Simomactra chionia (Tomlin, 1921)
chipolana, Mactra chipolana Dall, 1898 † (FOSSIL)
chrydaea, Maorimactra chrydaea (Suter, 1911) † (FOSSIL)
chulgunensis, Spisula chulgunensis (Krishtofovich, 1947) † (FOSSIL)
cibaria, Mulinia cibaria Philippi, 1893 - syn of: Mulinia exalbida Gray, 1837
cibaria, Mactra cibaria Philippi, 1893 - syn of: Mulinia exalbida Gray, 1837
cineraria, Mactra cineraria (Linnaeus, 1758)
cinerea, Mactra cinerea Montagu, 1808 - syn of: Mactra stultorum (Linnaeus, 1758)
cinerea atlantica, Mactra cinerea atlantica Bucquoy, Dautzenberg & Dollfus, 1896 - syn of: Mactra stultorum (Linnaeus, 1758)
cinerea grangeri, Mactra cinerea grangeri Bucquoy, Dautzenberg & Dollfus, 1896 - syn of: Mactra stultorum (Linnaeus, 1758)
cinerea lignaria, Mactra cinerea lignaria Monterosato, 1878 - syn of: Mactra stultorum (Linnaeus, 1758)
cinerea oceanica, Mactra cinerea oceanica Bucquoy, Dautzenberg & Dollfus, 1896 - syn of: Mactra stultorum (Linnaeus, 1758)
cinerea trigona, Mactra cinerea trigona Pallary, 1938 - syn of: Mactra stultorum (Linnaeus, 1758)
cistella, Anatina cistella Reeve, 1863 - syn of: Laternula laterna (Lamarck, 1818)
clathrodon, Mactra clathrodon Lea, 1833 † (FOSSIL)
cleryana, Mulinia cleryana (D'Orbigny, 1846)
cleryana, Mactra cleryana D'Orbigny, 1846 - syn of: Mulinia cleryana (D'Orbigny, 1846)
cleryana branneri, Mulinia cleryana branneri Dall, 1901
clisia, Mactrellona clisia (Dall, 1915)
cojimbensis, Mactra cojimbensis Anton, 1837 - syn of: Mulinia edulis (King, 1831)
coloradoensis, Mulinia coloradoensis Dall, 1894 - syn of: Mulinia modesta (Carpenter, 1864)
coloradoensis acuta, Mactra coloradoensis acuta Dall, 1894 - syn of: Mulinia modesta (Carpenter, 1864)
coloradoensis acuta, Mulinia coloradoensis acuta Dall, 1894 - syn of: Mulinia modesta (Carpenter, 1864)
columbiana, Darcinia columbiana Clark & Durham, 1946 † (FOSSIL)
complanata, Lutraria complanata (Gmelin, 1791)
complanata, Mactra complanata Gmelin, 1791 - syn of: Lutraria complanata (Gmelin, 1791)
complanata, Mactra complanata Reeve, 1854 - syn of: Simomactra chionia (Tomlin, 1921)
compressa, Spisula compressa (Deshayes, 1832) † (FOSSIL)
compressa, Mactrotoma compressa (Spengler, 1802)
compressa, Mactra compressa Pulteney, 1799 - syn of: Scrobicularia plana (Da Costa, 1778)
compressa, Mactra compressa Spengler, 1802 - syn of: Mactrotoma compressa (Spengler, 1802)
compressa, Aliomactra compressa Stephenson, 1952 † (FOSSIL)
concentrica, Mactra concentrica Bory De Saint-Vincent, 1827 - syn of: Mactrellona alata (Spengler, 1802)
confraga, Hemimactra confraga (Conrad, 1833) † (FOSSIL)
congesta, Mulinia congesta (Conrad, 1833) † (FOSSIL)
constricta, Anatina constricta Reeve, 1863 - syn of: Laternula anatina (Linnaeus, 1758)
constricta, Mactra constricta Woods, 1850 † (FOSSIL)
continua, Scalpomactra continua Finlay, 1930 † (FOSSIL)
contortula, Austromactra contortula (Deshayes, 1857) † (FOSSIL)
contraria, Austromactra contraria (Reeve, 1854)
contraria, Mactra contraria Reeve, 1854 - syn of: Austromactra contraria (Reeve, 1854)
coppingeri, Oxyperas coppingeri (Smith, 1884)
coquimba, Mactra coquimba Philippi, 1887 - syn of: Mactra petitii (D'Orbigny, 1846)
coquimbana, Mactra coquimbana Philippi, 1893 - syn of: Mulinia edulis (King, 1831)
coquimbana, Mulinia coquimbana Philippi, 1893 - syn of: Mulinia edulis (King, 1831)
corallina, Mactra corallina Linnaeus, 1758 - syn of: Mactra stultorum (Linnaeus, 1758)
corallina atlantica, Mactra corallina atlantica Bucquoy, Dautzenberg & Dollfus, 1896 - syn of: Mactra stultorum (Linnaeus, 1758)
corallina grangeri, Mactra corallina grangeri Bucquoy, Dautzenberg & Dollfus, 1896 - syn of: Mactra stultorum (Linnaeus, 1758)
corallina oceanica, Mactra corallina oceanica Bucquoy, Dautzenberg & Dollfus, 1896 - syn of: Mactra stultorum (Linnaeus, 1758)
corallina trigona, Mactra corallina trigona Pallary, 1938 - syn of: Mactra stultorum (Linnaeus, 1758)
corbiculoides, Mactra corbiculoides Deshayes, 0 - syn of: Mactra cygnus Gmelin, 1791
corbiculoides, Mactra corbiculoides Reeve, 1854 - syn of: Mactra cygnus Gmelin, 1791
corbuloides, Spisula corbuloides Reeve, 1854 - syn of: Spisula trigonella (Lamarck, 1818)
corbuloides, Mactra corbuloides Reeve, 1854 - syn of: Spisula trigonella (Lamarck, 1818)
cordiformis, Mactra cordiformis Reeve, 1854
cornea, Mactra cornea Poli, 1791 - syn of: Donacilla cornea (Poli, 1791)
cornea, Mactra cornea Reeve, 1854 - syn of: Mactra antiquata Spengler, 1802
costata, Lutraria costata Tryon, 1870 - syn of: Lutraria complanata (Gmelin, 1791)
cottardii, Lutraria cottardii Payraudeau, 1826 - syn of: Scrobicularia cottardii (Payraudeau, 1826)
couttsi, Spisula couttsi Marwick, 1948 † (FOSSIL)
craspedota, Spisula craspedota Gardner, 1947 † (FOSSIL)
crassatella, Spisula crassatella Lamarck, 1818 - syn of: Spisula solida (Linnaeus, 1758)
crassiplica, Lutraria crassiplica Lamarck, 1818 - syn of: Clementia papyracea (Gmelin, 1791)
crassitesta, Spisula crassitesta (Finlay, 1927) † (FOSSIL)
cretacea, Zenatia cretacea (Woods, 1917) † (FOSSIL)
cretacea, Spisula cretacea Angas, 1868 - syn of: Spisula trigonella (Lamarck, 1818)
crista, Mactra crista Jousseaume, 1894 - syn of: Mactrotoma depressa (Spengler, 1802)
crossei, Mactra crossei (Dunker, 1877)
croulinensis alta, Cryptodon croulinensis alta Verrill & Bush, 1898 - syn of: Parathyasira equalis (Verrill & Bush, 1898)
cumingi, Heterocardia cumingi Deshayes, 1855 - syn of: Heterocardia gibbosula Deshayes, 1855
cumingiana, Zenatia acinaces cumingiana Deshayes
cumingiana, Barymactra cumingiana Petit De La Saussaye, 1853 - syn of: Barymactra rostrata (Spengler, 1802)
cumingiana, Lutraria cumingiana Reeve, 1854 - syn of: Zenatia acinaces (Quoy & Gaimard, 1835)
cumingii, Mactra cumingii Reeve, 1854
cuneata, Mactra cuneata Gmelin, 1791
cuneata, Rangia cuneata Sowerby, 1831
cuneola, Mactra cuneola Gould, 1850 - syn of: Mulinia edulis (King, 1831)
curta, Lutraria curta Reeve, 1854
curtidens, Leptomactra curtidens (Dall, 1898) † (FOSSIL)
cuvieri, Mactra cuvieri Deshayes, 1854 - syn of: Mactra cumingii Reeve, 1854
cygnea, Mactra cygnea Philippi, 1844 - syn of: Mactra olorina Philippi, 1846
cygnea, Mactra cygnea Spengler, 1802 - syn of: Mactra cygnus Gmelin, 1791
cygnus, Mactra cygnus Gmelin, 1791
cyma, Ovamactra cyma Woodring, 1982 † (FOSSIL)
cyprinus, Anatina cyprinus (Wood, 1828)
cyprinus, Anatina cyprinus Wood, 1828 - syn of: Anatina cyprinus (Wood, 1828)
cyrenoides, Rangia cyrenoides Moulins, 1832 - syn of: Rangia cuneata Sowerby, 1831
darienensis, Eopapyrina darienensis (Dall, 1898) † (FOSSIL)
darwinii, Mactra darwinii Sowerby, 1846 † (FOSSIL)
dealbata, Mactrotoma dealbata Pulteney, 1799 - syn of: Standella fragilis (Gmelin, 1791)
deauratum, Mactra deauratum Turton, 1822 - syn of: Mesodesma deauratum (Turton, 1822)
debilis, Meropesta debilis Gould, 1850 - syn of: Standella pellucida (Gmelin, 1791)
decisa, Spisula decisa , † (FOSSIL)
declivis, Darina declivis Carpenter, 1864 - syn of: Darina solenoides (King & Broderip, 1832)
decora, Mactra decora Reeve, 1854 - syn of: Mactra lilacea Lamarck, 1818
delicatula, Mactra delicatula Preston, 1904 - syn of: Mactra cuneata Gmelin, 1791
delicatula nivea, Mactra delicatula nivea Preston, 1904 - syn of: Mactra cuneata Gmelin, 1791
deltoides, Spisula deltoides Lamarck, 1818 - syn of: Spisula subtruncata (da Costa, 1778)
delumbis, Leptomactra delumbis (Conrad, 1832) † (FOSSIL)
deluta, Mactra deluta Gould, 1850 - syn of: Cyclomactra ovata (Gray, 1843)
dennisoni, Heterocardia dennisoni Adams, 1866 - syn of: Heterocardia gibbosula Deshayes, 1855
densa, Spisula densa Dall, 1898 † (FOSSIL)
densatum, Pseudocardium densatum (Conrad, 1856) † (FOSSIL)
depressa, Mactrotoma depressa (Spengler, 1802)
depressa, Mactra depressa Lamarck, 1818 - syn of: Standella pellucida (Gmelin, 1791)
depressa, Mactra depressa Spengler, 1802 - syn of: Mactrotoma depressa (Spengler, 1802)
dernburgi, Barymactra dernburgi Bohm & Weisfermel, 1913 † (FOSSIL)
deserta, Oxyperas deserta Olsson, 1928 † (FOSSIL)
deshayesi, Mactra deshayesi Reeve, 1854
deshayesii, Mactra deshayesii Conrad, 1868 - syn of: Mactrotoma nasuta (Gould, 1851)
diolensis, Mactrotoma diolensis Bouchet & Nicklés, 1976 - syn of: Mactrotoma compressa (Spengler, 1802)
diolensis, Mactra diolensis Bouchet & Nicklés, 1976 - syn of: Mactrotoma compressa (Spengler, 1802)
discors, Spisula discors (Gray, 1837)
dissimilis, Mactra dissimilis Reeve, 1845
dissimilis, Lutraria dissimilis Reeve, 1854 - syn of: Lutraria rhynchaena Jonas, 1844
dissimilis ocharacea, Mactra dissimilis ocharacea Von Martens, 1880 - syn of: Mactra ochracea Von Martens, 1880
dodona, Spisula dodona Dall, 1898 † (FOSSIL)
dolabrata, Mactrinula dolabrata (Reeve, 1854)
dolabriformis, Simomactra dolabriformis (Conrad, 1867)
donacia, Mactra donacia Lamarck, 1818 - syn of: Mesodesma donacium (Lamarck, 1818)
donaciformis, Mulinia donaciformis Gray, 1837 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
donaciformis, Mulinia donaciformis Gray, 1837 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
ducomi, Mactra ducomi Cossmann & Peyrot, 1909 † (FOSSIL)
dunkeri, Mactra dunkeri Yokoyama, 1922 - syn of: Spisula sachalinensis (Schrenck, 1862)
duvergieri, Mactra nucleiformis duvergieri Cossmann & Peyrot (FOSSIL)
dysoni, Mactra dysoni Reeve, 1854 - syn of: Mactra eburnea Philippi, 1849
eburnea, Mactra eburnea Philippi, 1849
edulis, Mulinia edulis (King, 1831)
edulis, Mactra edulis King, 1832 - syn of: Mulinia edulis (King, 1831)
edulis byronensis, Mulinia edulis byronensis Gray, 1837 - syn of: Mulinia byronensis Gray, 1837
edulis calbucana, Mulinia edulis calbucana Philippi, 1893 - syn of: Mulinia edulis (King, 1831)
edulis epidermia, Mactra edulis epidermia Reeve, 1854 - syn of: Mulinia edulis (King, 1831)
edulis levicardo, Mulinia edulis levicardo Smith, 1881 - syn of: Mulinia levicardo (Smith, 1881)
egena, Oxyperas egena (Reeve, 1854)
elegans, Harvella elegans (Sowerby, 1825)
elegans, Anatina elegans Philippi, 1844 - syn of: Laternula rostrata (Sowerby, 1839)
elegans, Mactra elegans Sowerby, 1825 - syn of: Harvella elegans (Sowerby, 1825)
elisia, Mactrellona elisia (Dall, 1915) † (FOSSIL)
elliptica, Spisula elliptica (Brown, 1827)
elliptica, Anatina elliptica King & Broderip, 1832 - syn of: Laternula elliptica (King, 1832)
elliptica, Lutraria elliptica Lamarck, 1801 - syn of: Lutraria lutraria (Linnaeus, 1767)
elliptica, Raeta elliptica Yokoyama, 1922 - syn of: Raeta pulchella (Adams & Reeve, 1850)
elliptica, Heterocardia elliptica Zhuang, 1983 - syn of: Heterocardia gibbosula Deshayes, 1855
elliptica alteruta, Lutraria elliptica alteruta Jeffreys, 1864 - syn of: Lutraria angustior Philippi, 1844
elliptica alterutra, Lutraria elliptica alterutra Jeffreys, 1864 - syn of: Lutraria angustior Philippi, 1844
elliptica angustior, Lutraria elliptica angustior Philippi, 1844 - syn of: Lutraria angustior Philippi, 1844
elliptica gracilis, Spisula elliptica gracilis Locard, 1891 - syn of: Spisula elliptica (Brown, 1827)
elliptica latior, Lutraria elliptica latior Philippi, 1844 - syn of: Lutraria lutraria (Linnaeus, 1767)
elongata, Oxyperas elongata (Quoy & Gaimard, 1835)
elongata, Resania elongata Beu, 1966 † (FOSSIL)
elongata, Lutraria elongata Gray, 1837 - syn of: Lutraria complanata (Gmelin, 1791)
elongata, Anatina elongata Hanley, 1842 - syn of: Lyonsia norwegica (Gmelin, 1791)
elongata, Longimactra elongata Quoy & Gaimard, 1835 - syn of: Oxyperas elongata (Quoy & Gaimard, 1835)
elongata, Anatina elongata Stutchbury, 1830 - syn of: Thraciopsis elongata (Stutchbury, 1830)
elongata komakoensis, Oxyperas elongata komakoensis Carter, 1972 - syn of: Oxyperas elongata (Quoy & Gaimard, 1835)
ensis, Zenatina ensis Deshayes, 1835 - syn of: Zenatia acinaces (Quoy & Gaimard, 1835)
ensis, Lutraria ensis Deshayes, 1835 - syn of: Zenatia acinaces (Quoy & Gaimard, 1835)
epidermia, Mactra epidermia Philippi, 1893 - syn of: Mactra fuegiensis Smith, 1905
equilateralis, Spisula equilateralis Clark, 1932 † - syn of: Mactromeris polynyma (Stimpson, 1860) (FOSSIL)
estrellana, Mactra estrellana Olsson, 1922 - syn of: Harvella elegans (Sowerby, 1825)
estrellana, Mactra estrellana Olsson, 1922 - syn of: Harvella elegans (Sowerby, 1825)
estrellana, Harvella estrellana Olsson, 1922 - syn of: Harvella elegans (Sowerby, 1825)
estrellana tucilla, Harvella estrellana tucilla Olsson, 1932 - syn of: Harvella elegans (Sowerby, 1825)
eutornus, Cryptodon eutornus Tomlin, 1921 - syn of: Afrophysema eutornus (Tomlin, 1921)
euxinica, Spisula euxinica Krynicki, 1837 - syn of: Spisula subtruncata (da Costa, 1778)
evalensis, Pseudocardium evalensis (Ilyina, 1957) † (FOSSIL)
ewekoroensis, Spisula ewekoroensis (Adegoke, 1977) † (FOSSIL)
exalbida, Mulinia exalbida Gray, 1837
exensis, Oxyperas exensis Maxwell, 1978 † (FOSSIL)
eximia, Mactra eximia Reeve, 1854
exoleta, Mactrellona exoleta (Garay, 1837)
exoleta, Mactra exoleta Gray, 1837 - syn of: Mactrellona exoleta (Garay, 1837)
exoptata, Resania exoptata Bartrum & Powell, 1928 † (FOSSIL)
expansa, Lutraria oblonga expansa Dollfus, Cotter & Gomes (FOSSIL)
explanata, Mactrotoma explanata (Reeve, 1854)
ezodensatum, Pseudocardium ezodensatum (Kubota, 1950) † (FOSSIL)
ezoensis hetonaiensis, Cymbophora ezoensis hetonaiensis Nagao & Otatume, 1938 † - syn of: Cymbophora hetonaiensis Nagao & Otatume, 1938 † (FOSSIL)
fabagella, Heterocardia fabagella Deshayes, 1855 - syn of: Heterocardia gibbosula Deshayes, 1855
fabreana, Mactra fabreana D'Orbigny † (FOSSIL)
falcata, Simomactra falcata (Gould, 1850)
falcata, Mactra falcata Gould, 1850 - syn of: Simomactra falcata (Gould, 1850)
fasciata, Mactra fasciata Lamarck, 1818 - syn of: Mactra stultorum (Linnaeus, 1758)
fauroti, Mactra fauroti Jousseaume, 1888 - syn of: Mactra lilacea Lamarck, 1818
ferruginosum, Cryptodon ferruginosum Forbes, 1843 † (FOSSIL)
flemingi, Zenatia flemingi Marwick, 1948 † (FOSSIL)
flemingi, Longimactra flemingi Marwick, 1960 † (FOSSIL)
flemingi, Oxyperas flemingi Marwick, 1960 † (FOSSIL)
flexuosa, Rangia flexuosa (Conrad, 1839)
flexuosa, Rangianella flexuosa Conrad, 1839 - syn of: Rangia flexuosa (Conrad, 1839)
flexuosa, Anatina flexuosa Reeve, 1863 - syn of: Laternula anatina (Linnaeus, 1758)
flexuosa petitianus, Rangia flexuosa petitianus Dall, 1894 - syn of: Rangia flexuosa (Conrad, 1839)
flexuosus petitianus, Gnathodon flexuosus petitianus Dall, 1894 - syn of: Rangia flexuosa (Conrad, 1839)
flindersi, Standella flindersi Cotton & Godfrey, 1938 - syn of: Mactrotoma antecedens (Iredale, 1930)
flindersi, Standella flindersi Iredale, 1930
florens, Mactra florens Iredale, 1929 - syn of: Mactra cuneata Gmelin, 1791
fluviatilis, Mactra fluviatilis Angas, 1871 - syn of: Spisula trigonella (Lamarck, 1818)
fluviatilis, Spisula fluviatilis Angas, 1871 - syn of: Spisula trigonella (Lamarck, 1818)
fonsecana, Mactrotoma isthmica fonsecana Hertlein & Strong
fonsecana, Mactra fonsecana Hertlein & Strong, 1950 - syn of: Mactrotoma isthmica fonsecana Hertlein & Strong, 1950
fragilis, Standella fragilis (Gmelin, 1791)
fragilis, Zenatiopsis fragilis (Pritchard, 1896) † (FOSSIL)
fragilis, Mactra fragilis Gmelin, 1792 - syn of: Standella fragilis (Gmelin, 1791)
fragilis, Raeta fragilis Grabau & King, 1928 - syn of: Raeta pellicula (Reeve, 1854)
fragilis, Spisula fragilis Gray, 1837 - syn of: Standella pellucida (Gmelin, 1791)
frangula, Lutraria frangula Urk, 1980 † (FOSSIL)
fuegiensis, Mactra fuegiensis Smith, 1905
fujinensis, Mactra fujinensis Yokoyama, 1923 - syn of: Serripes groenlandicus (Mohr, 1786)
funerata, Spisula funerata (Conrad, 1848) † (FOSSIL)
gabbi, Raeta gabbi Pilsbry & Johnson, 1917 † (FOSSIL)
gabbi, Mactra gabbi Tryon, 1870 - syn of: Mulinia edulis (King, 1831)
gallina, Spisula gallina Spengler, 1802 - syn of: Spisula solida (Linnaeus, 1758)
gardnerae, Lutraria gardnerae Spieker, 1922 - syn of: Raeta undulata (Gould, 1851)
garreti, Mactra garreti Ortmann, 1902 † (FOSSIL)
gibbosa, Heterocardia gibbosa Deshayes, 1855 - syn of: Heterocardia gibbosula Deshayes, 1855
gibbosa, Raeta gibbosa Gabb, 1869 - syn of: Raeta undulata (Gould, 1851)
gibbosula, Heterocardia gibbosula Deshayes, 1855
gibbosula, Mactra gibbosula Reeve, 1854 - syn of: Mactra quadrangularis Reeve, 1854
gigantea, Spisula gigantea Lamarck, 1818 - syn of: Hemimactra solidissima (Dillwyn, 1817)
gigas, Mactra gigas Nowell-Usticke, 1969
gilberti, Crassula gilberti (Bartrum, 1919) † (FOSSIL)
glabra, Scalpomactra glabra (Sowerby, 1846) † (FOSSIL)
glabrata, Mactra glabrata Gmelin, 1791 - syn of: Atactodea striata (Gmelin, 1791)
glabrata, Mactra glabrata Linnaeus, 1767
glabrata lilacea, Mactra glabrata lilacea Lamarck, 1818 - syn of: Mactra lilacea Lamarck, 1818
gladius, Anatina gladius Laube, 1865 † (FOSSIL)
glauca, Mactra glauca Born, 1778
goniata, Mactra goniata Deshayes, 1855 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
goniata, Mulinia goniata Gray, 1855 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
goniocyma, Mactrinula goniocyma (Pilsbry & Olsson, 1932)
goniocyma, Mactra goniocyma Pilsbry & Lowe, 1932 - syn of: Mactrinula goniocyma (Pilsbry & Olsson, 1932)
gracilis, Cymbophora gracilis (Meek & Hayden, 1860) † (FOSSIL)
gracilis, Spisula gracilis Locard, 1891 - syn of: Spisula elliptica (Brown, 1827)
graeffei, Lutraria graeffei Mayer, 1889 † (FOSSIL)
grandis, Lutraria grandis (Hutton, 1873) † (FOSSIL)
grandis, Mactra grandis Gmelin, 1791
grandis mera, Mactra grandis mera Deshayes, 1854
granti, Spisula granti Wiedey, 1928 † - syn of: Crassatella granti (Wiedey, 1928) † (FOSSIL)
granulosa, Anatina granulosa Preston, 1914 - syn of: Laternula navicula (Reeve, 1863)
grateloupi, Heteromactra grateloupi Cossmann & Peyrot, 1909 † (FOSSIL)
grayana, Mactra grayana Schrenck, 1867 - syn of: Mactromeris polynyma (Stimpson, 1860)
grayi, Raeta grayi Adams, 1872 - syn of: Raeta pellicula (Reeve, 1854)
grayi, Anatina grayi Huber, 2015
guadelupensis, Mulinia guadelupensis Récluz, 1852 - syn of: Mulinia cleryana (D'Orbigny, 1846)
guadelupensis, Mactra guadelupensis Récluz, 1852 - syn of: Mulinia cleryana (D'Orbigny, 1846)
guidoi, Mactra guidoi Signorelli & Scarabino, 2010
haboroensis, Pseudocardium haboroensis Yokoyama, 1927 † (FOSSIL)
hamiltonensis, Mactra hamiltonensis Tate, 1887 † (FOSSIL)
hannibali, Spisula hannibali Clark & Arnold, 1923 † (FOSSIL)
harrisi, Hemimactra harrisi Olsson, 1914 † (FOSSIL)
hasletti, Lutraria hasletti Anderson, 1929 - syn of: Raeta undulata (Gould, 1851)
helvacea, Mactra helvacea Lamarck, 1818 - syn of: Mactra glauca Born, 1778
hemphillii, Mactromeris hemphillii (Dall, 1894)
hemphillii, Spisula hemphillii Dall, 1894 - syn of: Mactromeris hemphillii (Dall, 1894)
hemphillii orcutti, Spisula hemphillii orcutti Manger, 1934 - syn of: Mactromeris hemphillii (Dall, 1894)
hepatica, Mactra hepatica Reeve, 1854 - syn of: Mactra cygnus Gmelin, 1791
hetonaiensis, Cymbophora hetonaiensis Nagao & Otatume, 1938 † (FOSSIL)
hians, Mactra hians Philippi, 1846
hians, Mactra hians Pulteney, 1799 - syn of: Lutraria oblonga (Gmelin, 1791)
hiantina, Mactra hiantina Deshayes, 1855 - syn of: Mactrotoma nasuta (Gould, 1851)
hiantina, Mactra hiantina Deshayes, 1855 - syn of: Mactrotoma nasuta (Gould, 1851)
hiantina, Mactrotoma hiantina Deshayes, 1855 - syn of: Mactrotoma nasuta (Gould, 1851)
hispidula, Anatina hispidula Cuvier, 1829 - syn of: Laternula anatina (Linnaeus, 1758)
hoffstetteri, Spisula hoffstetteri Cauquoin, 1969 - syn of: Spisula adamsi Olsson, 1961
howchiniana, Electromactra howchiniana (Tate, 1887) † (FOSSIL)
hualtaca, Spisula hualtaca Olsson, 1928 † (FOSSIL)
hubbardi, Standella pellucida hubbardi Iredale
hubbardi, Standella hubbardi Iredale, 1929 - syn of: Standella pellucida hubbardi (Iredale, 1929)
hybrida, Mactra hybrida Dufour, 1881 † (FOSSIL)
iheringi, Trinitasia iheringi (Dall, 1897)
impar, Lutraria impar Reeve, 1854
impedita, Lutraria impedita Iredale, 1929 - syn of: Lutraria impar Reeve, 1854
imperfecta, Anatina imperfecta Lamarck, 1818 - syn of: Thracia imperfecta (Lamarck, 1818)
inaequalis, Mactra inaequalis Reeve, 1854
inaequilatera, Spisula inaequilatera (Nyst, 1845) † (FOSSIL)
inaequilateralis, Spisula inaequilateralis (Meyer, 1886) † (FOSSIL)
inaequipartita, Mactra inaequipartita Cossmann & Peyrot, 1909 † (FOSSIL)
incarnata, Mactra incarnata Reeve, 1854
inceri, Mactra inceri Petuch, 1998 - syn of: Trinitasia iheringi (Dall, 1897)
incerta, Mactra incerta Smith, 1885
incongrua, Mactra incongrua Reeve, 1854 - syn of: Mactra cygnus Gmelin, 1791
inconstans, Anatina inconstans (Cosel, 1995)
indica, Raeta indica Dall, 1895 - syn of: Raeta pellicula (Reeve, 1854)
induta, Anatina induta Preston, 1915 - syn of: Tanysiphon rivalis Benson, 1858
inflata, Mactra inflata Bronn, 1830 - syn of: Mactra stultorum (Linnaeus, 1758)
inflata, Lutraria inflata Dunker, 1853 - syn of: Tresus nuttallii (Conrad, 1837)
inflata, Standella inflata Hutton, 1873 - syn of: Cyclomactra ovata (Gray, 1843)
inhacaensis, Lutraria inhacaensis (Boshoff, 1965)
inhacaensis, Psammophila inhacaensis Boshoff, 1965 - syn of: Lutraria inhacaensis (Boshoff, 1965)
insignis, Cryptodon insignis Verrill & Bush, 1898 - syn of: Thyasira sarsii (Philippi, 1845)
intermedia, Mactra intermedia Aradas, 1847 - syn of: Mactra stultorum (Linnaeus, 1758)
intermedia, Lutraria intermedia Sowerby, 1859 - syn of: Lutraria angustior Philippi, 1844
intuspicta, Mactra intuspicta Deshayes, 1855 - syn of: Mactra cygnus Gmelin, 1791
iridescens, Mactra iridescens Kuroda & Habe, 1958
irizari, Mactra irizari Wilckens, 1912 † (FOSSIL)
isabelleana, Mactra isabelleana D'Orbigny, 1846
isthmia, Mactra isthmia Jousseaume, 1888 - syn of: Mactra olorina Philippi, 1846
isthmica, Mactrotoma isthmica (Pilsbry & Lowe, 1932)
isthmica, Mactra isthmica Pilsbry & Lowe, 1932 - syn of: Mactrotoma isthmica (Pilsbry & Lowe, 1932)
isthmica fonsecana, Mactrotoma isthmica fonsecana Hertlein & Strong, 1950
iwatensis, Coelomactra iwatensis (Hatai, 1940) † (FOSSIL)
jacksonensis, Spisula jacksonensis , † (FOSSIL)
jacksonensis, Mactra jacksonensis Smith, 1885
jacksonesis, Spisula jacksonesis Smith, 1885 - syn of: Mactra jacksonensis Smith, 1885
janeiroensis, Mactrella janeiroensis (Smith, 1915) † (FOSSIL)
janeiroensis, Psammophila janeiroensis Petuch, 1998 † - syn of: Mactrella janeiroensis (Smith, 1915) † (FOSSIL)
janeiroensis, Tumbeziconcha janeiroensis Smith, 1915 † - syn of: Mactrella janeiroensis (Smith, 1915) † (FOSSIL)
japonica, Anatina japonica Lischke, 1872 - syn of: Laternula anatina (Linnaeus, 1758)
jickelii, Raeta jickelii Sturany, 1905 - syn of: Raeta pellicula (Reeve, 1854)
jickelii, Mactra jickelii Weinkauff, 1881 - syn of: Mactra lilacea Lamarck, 1818
jonasi, Mactra jonasi Philippi, 1893 - syn of: Mulinia exalbida Gray, 1837
jonasseni, Nymphactra jonasseni Stilwell & Zinsmeister, 1992 † (FOSSIL)
jousseaumi, Mactra jousseaumi Rochebrune & Mabille, 1889 - syn of: Mulinia byronensis Gray, 1837
kamakurana, Anatina kamakurana Pilsbry, 1895 - syn of: Laternula liautaudi (Mittre, 1844)
kanakina, Mactra kanakina Souverbie, 1860
karaginskiensis, Spisula karaginskiensis Barinov, 1992 - syn of: Mactromeris polynyma (Stimpson, 1860)
kavakamiensis, Mactra kavakamiensis Krishtofovich, 1954 † (FOSSIL)
keenae, Tresus keenae (Kuroda & Habe, 1950)
kempfi, Mactra kempfi Cauquoin, 1969 - syn of: Trinitasia iheringi (Dall, 1897)
kingi, Lutraria kingi Fischer, 1887 - syn of: Darina solenoides (King & Broderip, 1832)
kraussi, Mactra kraussi Turton, 1932 - syn of: Mactrotoma depressa (Spengler, 1802)
kunstleri, Mactra kunstleri Cossmann & Peyrot, 1909 † (FOSSIL)
kurikoma, Pseudocardium kurikoma Nomura, 1935 † - syn of: Pseudocardium haboroensis Yokoyama, 1927 † (FOSSIL)
labiata, Anatina labiata Reeve, 1863 - syn of: Laternula anatina (Linnaeus, 1758)
lacinata, Mulinia lacinata Carpenter, 1856 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
lacinata, Mactra lacinata Carpenter, 1856 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
lactea, Mactra lactea Lamarck, 1818 - syn of: Mactra stultorum (Linnaeus, 1758)
lactea, Spisula lactea Poli, 1791 - syn of: Spisula subtruncata (da Costa, 1778)
lactea, Mactra lactea Poli, 1791 - syn of: Spisula subtruncata (da Costa, 1778)
lactea, Raeta lactea Zorina, 1978 - syn of: Raeta pulchella (Adams & Reeve, 1850)
laevigata, Mactra laevigata Schumacher, 1817 - syn of: Mactrellona alata (Spengler, 1802)
laevis, Mactra laevis Dunker, 1871 - syn of: Mactra ochracea Von Martens, 1880
laevis, Mactrinula laevis Reeve, 1854 - syn of: Mactrinula striatula (Linnaeus, 1767)
laevis, Mactra laevis Reeve, 1854 - syn of: Mactrinula striatula (Linnaeus, 1767)
lamarckii, Spisula lamarckii Gray, 1837 † - syn of: Eastonia rugosa (Helbling, 1779) † (FOSSIL)
lamarckii, Mactra lamarckii Philippi, 1846 - syn of: Mactra grandis Gmelin, 1791
lamberti, Austromactra lamberti (Deshayes, 1857) † (FOSSIL)
laminifera, Mactra laminifera Lamy, 1906 - syn of: Cyamiomactra laminifera (Lamy, 1906)
lanceolata, Resania lanceolata Gray, 1853
lapidosa, Pteropsella lapidosa (Conrad, 1846) † (FOSSIL)
larga, Lutraria larga Reeve, 1854 - syn of: Lutraria maxima Jonas, 1844
largillierti, Mactra largillierti Philippi, 1849
lateralis, Mulinia lateralis (Say, 1822)
lateralis sauryensis, Mulinia lateralis sauryensis Olsson, 1922
laterna, Anatina laterna Deshayes, 1839 - syn of: Laternula erythraea (Morris & Morris, 1993)
laterna, Anatina laterna Lamarck, 1818 - syn of: Laternula laterna (Lamarck, 1818)
latissima, Lutraria latissima Deshayes, 1830 † (FOSSIL)
laudunensis, Austromactra laudunensis (Watelet, 1853) † (FOSSIL)
lavata, Mactra lavata Hutton, 1885 - syn of: Cyclomactra ovata (Gray, 1843)
leda, Oxyperas leda (Finlay, 1924) † (FOSSIL)
lentiginosa, Oxyperas lentiginosa (Gould, 1852)
lentiginosa, Spisula lentiginosa Gould, 1852 - syn of: Oxyperas lentiginosa (Gould, 1852)
leves, Spisula semisulcata leves D'Orbigny (FOSSIL)
levicardo, Mulinia levicardo (Smith, 1881)
liautaudi, Anatina liautaudi Mittre, 1844 - syn of: Laternula liautaudi (Mittre, 1844)
lignaria, Mactra stultorum lignaria Monterosato
lilacea, Mactra lilacea Lamarck, 1818
lilacea alba, Mactra lilacea alba Jousseaume, 1916 - syn of: Mactra lilacea Lamarck, 1818
lilacea jickelii, Mactra lilacea jickelii Weinkauff, 1881 - syn of: Mactra lilacea Lamarck, 1818
limicola, Anatina limicola Reeve, 1863 - syn of: Laternula rostrata (Sowerby, 1839)
limicola, Anatina limicola sensu Habe, 1977 - syn of: Laternula liautaudi (Mittre, 1844)
lineata, Lutraria lineata Say, 1822 - syn of: Anatina anatina (Spengler, 1802)
lineata, Lutraria lineata Say, 1822 - syn of: Anatina anatina (Spengler, 1802)
lineata, Anatina lineata Say, 1822 - syn of: Anatina anatina (Spengler, 1802)
lirata, Lutraria lirata Sowerby, 1819 † - syn of: Pholadomya fidicula Sowerby, 1826 † (FOSSIL)
lisor, Mactra lisor Anton, 1838 - syn of: Mactra glabrata Linnaeus, 1767
listeri, Mactra listeri Gmelin, 1791 - syn of: Scrobicularia plana (Da Costa, 1778)
listeriana, Trigonella listeriana Leach, 1852 - syn of: Scrobicularia plana (Da Costa, 1778)
locardi, Eastonia locardi Oliveira, 1895 † - syn of: Eastonia rugosa (Helbling, 1779) † (FOSSIL)
loebbeckeana, Mactra loebbeckeana Weinkauff, 1881 - syn of: Mactromeris polynyma (Stimpson, 1860)
longa, Tresus longa Dall, 1921 - syn of: Tresus nuttallii (Conrad, 1837)
longa, Spisula longa Dall, 1921 - syn of: Tresus nuttallii (Conrad, 1837)
longifrons, Mactromeris merriami longifrons Turner (FOSSIL)
longirostris, Anatina longirostris Lamarck, 1818 - syn of: Cuspidaria rostrata (Spengler, 1793)
lotensis, Mactra lotensis Philippi, 1893 - syn of: Mulinia byronensis Gray, 1837
loustauae, Austromactra loustauae (Bayan, 1873) † (FOSSIL)
lucida, Lutraria lucida Gould, 1861 - syn of: Lutraria rhynchaena Jonas, 1844
luhdorfii, Mactra luhdorfii Dunker, 1864 - syn of: Spisula sachalinensis (Schrenck, 1862)
lurida, Mactra lurida Philippi, 1850 - syn of: Mactra cygnus Gmelin, 1791
luteola, Mactra luteola Lovén, 1846 - syn of: Spisula elliptica (Brown, 1827)
luteola, Spisula luteola Lovén, 1846 - syn of: Spisula elliptica (Brown, 1827)
lutraria, Lutraria lutraria (Linnaeus, 1767)
lutraria capensis, Lutraria lutraria capensis Reeve, 1854 - syn of: Lutraria lutraria (Linnaeus, 1767)
lutraria panormensis, Lutraria lutraria panormensis De Gregorio, 1885 - syn of: Lutraria lutraria (Linnaeus, 1767)
luzonica, Mactra luzonica Reeve, 1854
lyra, Eastonia lyra Melvill, 1898 † - syn of: Eastonia solanderi (Gray, 1837) † (FOSSIL)
mactrae, Mytilicola mactrae Hoshina & Kuwabara, 1959 - syn of: Mactra quadrangularis Reeve, 1854
mactraeformis, Cryptodon mactraeformis Tate, 1887 † (FOSSIL)
maculata, Mactra maculata Chemnitz, 1782 - syn of: Mactra maculata Gmelin, 1791
maculata, Mactra maculata Gmelin, 1791
maculosa, Mactra achatina maculosa Lamarck
magellanica, Mactra magellanica Philippi, 1893 - syn of: Mulinia edulis (King, 1831)
magna, Lutraria magna Da Costa, 1778 - syn of: Lutraria oblonga (Gmelin, 1791)
magna, Lutraria magna Oliver, 1915 - syn of: Lutraria rhynchaena Jonas, 1844
magnifica, Raeta magnifica Yokoyama, 1922 - syn of: Raeta pellicula (Reeve, 1854)
malina, Mactra malina Hedley, 1915
maracaibensis, Mactra maracaibensis Hodson, 1931 † (FOSSIL)
marcida, Mactra marcida Gould, 1850 - syn of: Mulinia edulis (King, 1831)
mariae, Mactra mariae Adams, 1856 - syn of: Oxyperas elongata (Quoy & Gaimard, 1835)
marilina, Anatina marilina Reeve, 1860 - syn of: Laternula gracilis (Reeve, 1860)
marplatensis, Mactra marplatensis Doello-Jurado, 1918
marullensis, Anatina marullensis D'Orbigny, 1844 † - syn of: Platymya marullensis (D'Orbigny, 1844) † (FOSSIL)
marwicki, Mactra marwicki Beu, 2006 † (FOSSIL)
marylandica, Leptomactra marylandica (Dall, 1898) † (FOSSIL)
mathewsonii, Petromactra mathewsonii (Gabb, 1864) † (FOSSIL)
matthewsi, Nannomactra matthewsi (Tate, 1888)
maxima, Lutraria maxima Jonas, 1844
maxima, Raeta maxima Li, 1930 - syn of: Harvella elegans (Sowerby, 1825)
maxima, Raeta maxima Li, 1930 - syn of: Harvella elegans (Sowerby, 1825)
maxima, Lutraria maxima Middendorff, 1849 - syn of: Tresus capax (Gould, 1850)
meganosensis, Pseudocardium meganosensis Clark & Woodford, 1927 † (FOSSIL)
mekranensis, Mactra mekranensis Newton, 1905 † (FOSSIL)
mendica, Rangia mendica (Gould, 1851)
mendica, Mactra mendica Gould, 1851 - syn of: Rangia mendica (Gould, 1851)
mera, Mactra grandis mera Deshayes
mera, Mactra mera Reeve, 1854
mercedensis, Mactromeris mercedensis Packard, 1916 † (FOSSIL)
meretriciformis, Mactra meretriciformis Deshayes, 1854 - syn of: Mactra abbreviata obesa Reeve, 1854
meretriciformis, Mactra meretriciformis Reeve, 1854 - syn of: Mactra abbreviata Lamarck, 1818
meridiana, Eastonia meridiana Iredale, 1929 - syn of: Meropesta nicobarica (Gmelin, 1791)
meridiana, Meropesta meridiana Iredale, 1929 - syn of: Meropesta nicobarica (Gmelin, 1791)
meridionalis, Raeta meridionalis Tate, 1889
meritriciformis, Mactra abbreviata meritriciformis Reeve
merriami, Mactromeris merriami Packard, 1916 † (FOSSIL)
merriami longifrons, Mactromeris merriami longifrons Turner, 1938 † (FOSSIL)
meyeri, Geltena meyeri Casey, 1961 † (FOSSIL)
micronitida, Scissodesma micronitida (Cosel, 1995)
millepunctata, Anatina millepunctata Vogel, 1895 † (FOSSIL)
minutissima, Mactra minutissima Montagu, 1808 - syn of: Goodallia triangularis (Montagu, 1803)
mississippiensis, Mactra mississippiensis Conrad, 1848 † (FOSSIL)
mitis, Eastonia mitis Mayer, 1867 † (FOSSIL)
mitis, Mactra mitis Reeve, 1854
modesta, Mulinia modesta (Carpenter, 1864)
modesta, Mactra modesta Carpenter, 1864 - syn of: Mulinia modesta (Carpenter, 1864)
montereyana, Mactromeris montereyana Arnold, 1908 † (FOSSIL)
mula, Mactra mula Marwick, 1948 † (FOSSIL)
muliniaformis, Mactromeris muliniaformis Wagner & Schilling, 1923 † (FOSSIL)
murchisoni, Spisula murchisoni (Reeve, 1854)
mystrosura, Standella mystrosura Stilwell & Zinsmeister, 1992 † (FOSSIL)
nadali, Mactra nadali Cossmann & Peyrot, 1909 † (FOSSIL)
nagakoensis, Mactromeris nagakoensis Hatai & Nisiyama, 1949 † (FOSSIL)
nasuta, Mactrotoma nasuta (Gould, 1851)
nasuta, Rangia nasuta Dall, 1884 - syn of: Rangia cuneata Sowerby, 1831
nasuta, Mactra nasuta Gould, 1851 - syn of: Mactrotoma nasuta (Gould, 1851)
nasutus, Rangia nasutus Dall, 1884 - syn of: Rangia cuneata Sowerby, 1831
navicula, Anatina navicula Reeve, 1863 - syn of: Laternula navicula (Reeve, 1863)
neapolitana, Mactra neapolitana Poli, 1791 - syn of: Mactra glauca Born, 1778
nebulosa, Mactra nebulosa Bory De Saint-Vincent, 1827 - syn of: Mactra maculata Gmelin, 1791
nicobarica, Meropesta nicobarica (Gmelin, 1791)
nicobarica, Mactra nicobarica Gmelin, 1791 - syn of: Meropesta nicobarica (Gmelin, 1791)
nicobarica, Standella nicobarica Gmelin, 1791 - syn of: Meropesta nicobarica (Gmelin, 1791)
nigeriensis, Crepispisula nigeriensis (Adegoke, 1977) † (FOSSIL)
nipponica, Mactra nipponica Kuroda & Habe, 1971
nitida, Scissodesma nitida (Gmelin, 1791)
nitida, Mactra nitida Spengler, 1791 - syn of: Scissodesma nitida (Gmelin, 1791)
nitida angolensis, Scissodesma nitida angolensis Dunker, 1853 - syn of: Scissodesma angolensis (Cosel, 1995)
nitida angolensis, Mactra nitida angolensis Dunker, 1853 - syn of: Scissodesma angolensis (Cosel, 1995)
nivea, Leptospisula nivea (Gmelin, 1791)
notata, Mactra notata Hutton, 1873 - syn of: Oxyperas elongata (Quoy & Gaimard, 1835)
notata, Mulinia notata Hutton, 1873 - syn of: Oxyperas elongata (Quoy & Gaimard, 1835)
nucleiformis, Mactra nucleiformis Mayer † (FOSSIL)
nucleiformis duvergieri, Mactra nucleiformis duvergieri Cossmann & Peyrot, 1909 † (FOSSIL)
nuttallii, Tresus nuttallii (Conrad, 1837)
nuttallii, Lutraria nuttallii Conrad, 1837 - syn of: Tresus nuttallii (Conrad, 1837)
nuttallii, Mactra nuttallii Reeve, 1854 - syn of: Anatina anatina (Spengler, 1802)
obesa, Mactra abbreviata obesa Reeve
oblonga, Lutraria oblonga (Gmelin, 1791)
oblonga, Anatina oblonga Philippi, 1836 - syn of: Cochlodesma praetenue (Pulteney, 1799)
oblonga, Mactra oblonga Philippi, 1887 † (FOSSIL)
oblonga, Lutraria oblonga Say, 1822 - syn of: Lutraria oblonga (Gmelin, 1791)
oblonga altavillensis, Lutraria oblonga altavillensis De Gregorio, 1885 - syn of: Lutraria oblonga (Gmelin, 1791)
oblonga expansa, Lutraria oblonga expansa Dollfus, Cotter & Gomes, 1904 † (FOSSIL)
oblonga tarantensis, Lutraria oblonga tarantensis De Gregorio, 1885 - syn of: Lutraria oblonga (Gmelin, 1791)
obtruncata, Spisula obtruncata Woods, 1850 † (FOSSIL)
ochracea, Mactra ochracea Von Martens, 1880
oitensis, Pseudocardium oitensis Krishtofovich, 1964 † - syn of: Pseudocardium evalensis (Ilyina, 1957) † (FOSSIL)
okadakensis, Cymbophora okadakensis Tamura, 1977 † (FOSSIL)
olar, Anatina olar Jay, 1850 - syn of: Laternula rostrata (Sowerby, 1839)
olorina, Mactra olorina Philippi, 1846
olorina, Anatina olorina Reeve, 1860 - syn of: Laternula rostrata (Sowerby, 1839)
opposita, Mactra opposita Reeve, 1854
ordinaria, Mactra ordinaria (Smith, 1898)
ordinaria, Maorimactra ordinaria Smith, 1898 - syn of: Mactra ordinaria (Smith, 1898)
oregonensis, Mulinia oregonensis Dall, 1909 † - syn of: Pseudocardium densatum (Conrad, 1856) † (FOSSIL)
ornata, Mactra achatina ornata Gray
ornata, Mactra ornata Gray, 1837 - syn of: Mactra achatina ornata Gray, 1837
orthogonalis, Mactra orthogonalis Dufour, 1881 † (FOSSIL)
orthomorpha, Pseudocardium orthomorpha Grant & Gale, 1931 † (FOSSIL)
orthria, Mulinia orthria Gardner, 1928 † (FOSSIL)
othnius, Pteroluter othnius Saul, 1973 † (FOSSIL)
ovalina, Spisula ovalina Lamarck, 1818 - syn of: Spisula ovalis (Sowerby, 1817)
ovalina, Mactra ovalina Reeve, 1854 - syn of: Mactrotoma angusta (Reeve, 1854)
ovalina, Mactra ovalina Smith, 1914 - syn of: Mactrotoma antecedens (Iredale, 1930)
ovalis, Spisula ovalis (Sowerby, 1817)
ovalis, Anatina ovalis Brown, 1827 - syn of: Thracia villosiuscula (Macgillivray, 1827)
ovalis, Mactra ovalis Gould, 1840 - syn of: Mactromeris polynyma (Stimpson, 1860)
ovalis, Mactra ovalis Sowerby, 1817
ovalis, Anatina ovalis Stutchbury, 1830 - syn of: Thracia stutchburyi Huber, 2010
ovata, Cyclomactra ovata (Gray, 1843)
ovata, Spisula ovata Gray, 1843 - syn of: Cyclomactra ovata (Gray, 1843)
ovata, Mactra ovata Wood, 1828 - syn of: Paphies australis (Gmelin, 1791)
ovoideus, Cryptodon ovoideus Dall, 1890 - syn of: Ascetoaxinus ovoideus (Dall, 1890)
pabloensis, Pseudocardium pabloensis Packard, 1915 † (FOSSIL)
pacifica, Harvella pacifica Conrad, 1867 - syn of: Harvella elegans (Sowerby, 1825)
pacifica, Harvella pacifica Conrad, 1867 - syn of: Harvella elegans (Sowerby, 1825)
packardi, Pseudocardium packardi Dickerson, 1917 † (FOSSIL)
paeteli, Lutraria paeteli Mayer, 1889 † (FOSSIL)
paitensis, Mactra paitensis Philippi, 1853 - syn of: Mactrotoma velata (Philippi, 1849)
paitensis, Mactra paitensis Philippi, 1893 - syn of: Mactrotoma velata (Philippi, 1849)
pajaroanus, Tresus pajaroanus (Conrad, 1857) † (FOSSIL)
pallida, Mulinia pallida (Broderip & Sowerby, 1829)
pallida, Mactra pallida Broderip & Sowerby, 1829 - syn of: Mulinia pallida (Broderip & Sowerby, 1829)
panchia, Mactra panchia Watson, 1886
panormitana, Spisula panormitana Bivona-Bernardi, 1839 - syn of: Spisula solida (Linnaeus, 1758)
panzana, Pseudocardium panzana (Loel & Corey, 1932) † (FOSSIL)
papyracea, Raeta papyracea D'Orbigny, 1846 - syn of: Raeta plicatella (Lamarck, 1818)
papyracea, Mactra papyracea Gmelin, 1791 - syn of: Clementia papyracea (Gmelin, 1791)
papyracea, Anatina papyracea Lamarck, 1818 - syn of: Anatina anatina (Spengler, 1802)
papyracea, Lutraria papyracea Lamarck, 1818 - syn of: Anatina anatina (Spengler, 1802)
papyratia, Anatina papyratia Say, 1822 - syn of: Periploma papyratium (Say, 1822)
paralis, Spisula paralis , † (FOSSIL)
parameces, Austromactra parameces (Cossmann, 1886) † (FOSSIL)
parilis, Spisula parilis (Conrad, 1833) † (FOSSIL)
parinensis, Oxyperas parinensis Olsson, 1928 † (FOSSIL)
parkesiana, Mactra parkesiana Hedley, 1902 - syn of: Mactrotoma explanata (Reeve, 1854)
parvula, Anatina parvula Thurmann & Etallon, 1862 † (FOSSIL)
parvum, Spisula parvum Petit De La Saussaye, 1853 - syn of: Spisula trigonella (Lamarck, 1818)
patagonica, Mactra patagonica D'Orbigny, 1846
paulucciae, Mactra paulucciae Aradas & Benoit, 1872 - syn of: Mactra stultorum (Linnaeus, 1758)
pechiliensis, Anatina pechiliensis Grabau & King, 1928 - syn of: Laternula liautaudi (Mittre, 1844)
pellicula, Raeta pellicula (Reeve, 1854)
pellicula, Mactra pellicula Reeve, 1854 - syn of: Raeta pellicula (Reeve, 1854)
pellucida, Standella pellucida (Gmelin, 1791)
pellucida, Simomactra pellucida Dall, 1916 - syn of: Simomactra falcata (Gould, 1850)
pellucida, Mactra pellucida Gmelin, 1791 - syn of: Standella pellucida (Gmelin, 1791)
pellucida, Anatina pellucida Schumacher, 1817 - syn of: Anatina anatina (Spengler, 1802)
pellucida, Anatina pellucida Schumacher, 1817 - syn of: Anatina anatina (Spengler, 1802)
pellucida hubbardi, Standella pellucida hubbardi (Iredale, 1929)
pencana, Mactra pencana Philippi, 1893 - syn of: Mulinia byronensis Gray, 1837
peroni, Anatina peroni Lamy, 1934 - syn of: Laternula rostrata (Sowerby, 1839)
perspicua, Raeta perspicua Hutton, 1873 - syn of: Raeta plicatella (Lamarck, 1818)
pesanseris, Cryptomactra pesanseris (Mayer-Eymar) † (FOSSIL)
petitii, Mactra petitii (D'Orbigny, 1846)
petitii, Spisula petitii D'Orbigny, 1846 - syn of: Mactra petitii (D'Orbigny, 1846)
philippinarum, Lutraria philippinarum Reeve, 1854 - syn of: Lutraria rhynchaena Jonas, 1844
pinguis, Mactra pinguis Crosse & Fischer, 1864 - syn of: Anapella cycladea (Lamarck, 1818)
piperata, Mactra piperata Poiret, 1786 - syn of: Scrobicularia plana (Da Costa, 1778)
piscinasina, Eomactra piscinasina Garvie, 2013 † (FOSSIL)
plana, Trigonella plana Da Costa, 1778 - syn of: Scrobicularia plana (Da Costa, 1778)
planata, Mactra planata Spengler, 1802 - syn of: Lutraria complanata (Gmelin, 1791)
planulata, Simomactra planulata (Conrad, 1837)
plicaria, Harvella plicaria Gray, 1853 - syn of: Mactrinula plicataria (Linnaeus, 1767)
plicaria, Mactrinula plicaria Gray, 1853 - syn of: Mactrinula plicataria (Linnaeus, 1767)
plicataria, Mactrinula plicataria (Linnaeus, 1767)
plicatella, Raeta plicatella (Lamarck, 1818)
plicatella, Lutraria plicatella Lamarck, 1818 - syn of: Raeta plicatella (Lamarck, 1818)
plicatilis, Tumbeziconcha plicatilis (Reeve, 1854)
plicatus, Cryptodon plicatus Adams, 1862 - syn of: Channelaxinus perplicatus (Salas, 1996)
podolica, Mactra podolica Eichwald, 1830 † (FOSSIL)
polita, Mactra polita Reeve, 1854 - syn of: Mactra australis Lamarck, 1818
polynyma, Mactromeris polynyma (Stimpson, 1860)
polynyma, Mactra polynyma Stimpson, 1860 - syn of: Mactromeris polynyma (Stimpson, 1860)
polynyma alaskana, Mactromeris polynyma alaskana (Dall, 1894)
polynyma voyi, Mactromeris polynyma voyi (Gabb, 1866)
ponderosa, Mactrodesma ponderosa (Conrad, 1830) † (FOSSIL)
ponderosa, Mactra ponderosa Philippi, 1844 - syn of: Mactromeris polynyma (Stimpson, 1860)
pontchartrainensis, Mulinia pontchartrainensis Morrison, 1965
popenoei, Willimactra popenoei Saul, 1973 † (FOSSIL)
porrecta, Lutraria porrecta Finlay, 1930 - syn of: Lutraria impar Reeve, 1854
portoricensis, Mulinia portoricensis Shuttleworth, 1856 - syn of: Mulinia cleryana (D'Orbigny, 1846)
praetenuis, Spisula praetenuis (Conrad, 1833) † (FOSSIL)
precursor, Spisula precursor Dall, 1909 † (FOSSIL)
prismatica, Anatina prismatica Sowerby, 1834 - syn of: Laternula elliptica (King, 1832)
proaspera, Mactra proaspera Sacco, 1900
proaspersa, Oxyperas proaspersa (Sacco, 1901) † (FOSSIL)
proaspersa, Oxyperas proaspersa Ardovini & al., 2004 - syn of: Oxyperas egena (Reeve, 1854)
proaspersa, Mactra proaspersa Sacco, 1901 - syn of: Oxyperas egena (Reeve, 1854)
procera, Spisula procera Dillwyn, 1817 - syn of: Hemimactra solidissima (Dillwyn, 1817)
procrassa, Mactra procrassa Woods, 1850 † (FOSSIL)
producta, Spisula producta Angas, 1868 - syn of: Spisula trigonella (Lamarck, 1818)
prolongata, Anatina prolongata Reeve, 1863 - syn of: Laternula attenuata (Reeve, 1863)
protoreevesii, Mactra protoreevesii Noetling, 1901 † (FOSSIL)
pulchella, Raeta pulchella (Adams & Reeve, 1850)
pulchella, Mactra pulchella Philippi, 1846
pulchra, Mactra pulchra Gray, 1837 - syn of: Mactra lilacea Lamarck, 1818
pulchra, Mactra pulchra Reeve, 1854 - syn of: Mactra lilacea Lamarck, 1818
pulla, Mactra pulla Philippi, 1849 - syn of: Mactra sauliana Gray, 1838
pura, Mactra pura Reeve, 1854
purpurea, Mactra purpurea Spengler, 1802 - syn of: Mactra cygnus Gmelin, 1791
pusilla, Mactra pusilla Philippi, 1887
putatoria, Anatina putatoria White, 1887 † (FOSSIL)
putida, Willimactra putida Saul, 1973 † (FOSSIL)
pyrenaicensis, Mactra pyrenaicensis Cossmann, 1923 † (FOSSIL)
quadrangularis, Mactra quadrangularis Reeve, 1854
quadrangularis veneriformis, Mactra quadrangularis veneriformis Deshayes, 1854
queenslandica, Mactra queenslandica Smith, 1914
quirosana, Mactra quirosana Hodson, 1931
radiata, Anatina radiata Calcara, 1840 - syn of: Cardiomya costellata (Deshayes, 1835)
radiata, Mactra radiata Da Costa, 1778 - syn of: Mactra stultorum (Linnaeus, 1758)
radiata, Mactra radiata Donovan, 1799 - syn of: Serripes groenlandicus (Mohr, 1786)
radiata, Mactra radiata Spengler, 1802 - syn of: Mactra grandis Gmelin, 1791
radiata, Lutraria radiata Yokoyama, 1920 - syn of: Lutraria sieboldii Reeve, 1854
radiolata, Mactra radiolata Reeve, 1854 - syn of: Mactra cygnus Gmelin, 1791
ramonensis, Mactromeris ramonensis Packard & Clark, 1915 † (FOSSIL)
rappahannockensis, Spisula rappahannockensis Gardner, 1944 † (FOSSIL)
raveneli, Spisula raveneli (Conrad, 1832)
recondita, Austromactra recondita (Deshayes, 1857) † (FOSSIL)
recurva, Mactra recurva Wood, 1828 - syn of: Anatina anatina (Spengler, 1802)
recurva, Anatina recurva Wood, 1828 - syn of: Anatina anatina (Spengler, 1802)
recurva, Mactra recurva Wood, 1828 - syn of: Anatina anatina (Spengler, 1802)
reevei, Mactra reevei Reeve, 1854 - syn of: Mactra maculata Gmelin, 1791
reevesii, Mactrinula reevesii (Gray, 1837)
reticulata, Eastonia reticulata Spengler, 1802 - syn of: Meropesta nicobarica (Gmelin, 1791)
reticulata, Mactra reticulata Spengler, 1802 - syn of: Meropesta nicobarica (Gmelin, 1791)
revellei, Mactrotoma revellei Durham, 1950 - syn of: Mactrotoma nasuta (Gould, 1851)
revellei, Mactra revellei Durham, 1950 - syn of: Mactrotoma nasuta (Gould, 1851)
rhynchaena, Lutraria rhynchaena Jonas, 1844
richmondi, Mactra richmondi Dall, 1894 - syn of: Mactra petitii (D'Orbigny, 1846)
richmondi, Spisula richmondi Dall, 1894 - syn of: Mactra petitii (D'Orbigny, 1846)
rivalis, Tanysiphon rivalis Benson, 1858
rochebrunei, Mactra rochebrunei Lamy, 1916
rodatzi, Mactra rodatzi Dunker, 1850 - syn of: Mulinia edulis (King, 1831)
rostralis, Raeta rostralis Reeve, 1854 - syn of: Raeta pulchella (Adams & Reeve, 1850)
rostrata, Barymactra rostrata (Spengler, 1802)
rostrata, Mactra rostrata Philipp, 1849 - syn of: Mulinia lateralis (Say, 1822)
rostrata, Mactra rostrata Reeve, 1854 - syn of: Spisula trigonella (Lamarck, 1818)
rostrata, Anatina rostrata Sowerby, 1839 - syn of: Laternula rostrata (Sowerby, 1839)
rostrata, Mactra rostrata Spengler, 1802 - syn of: Barymactra rostrata (Spengler, 1802)
rostratum, Gnathodon rostratum Petit De La Saussaye, 1853 - syn of: Rangia flexuosa (Conrad, 1839)
rudis, Mactra rudis Hutton, 1873 - syn of: Cyclomactra tristis (Reeve, 1854)
rufa, Mactra rufa Lamarck, 1818 - syn of: Mactra stultorum (Linnaeus, 1758)
rufanensis, Mactra rufanensis Turton, 1932 - syn of: Mactra ochracea Von Martens, 1880
rufescens, Austromactra rufescens (Lamarck, 1818)
rugifera, Mactra rugifera Dunker, 1862 - syn of: Austromactra rufescens (Lamarck, 1818)
rugosa, Eastonia rugosa (Helbling, 1779) † (FOSSIL)
rugosa b, Lutraria rugosa b Lamarck, 1818 † - syn of: Eastonia rugosa (Helbling, 1779) † (FOSSIL)
rupicola, Anatina rupicola Lamarck, 1818 - syn of: Thracia distorta (Montagu, 1803)
rushi, Mactromeris rushi Wagner & Schilling, 1923 † (FOSSIL)
rustica, Darina rustica Huber, 2010
sachalinensis, Spisula sachalinensis (Schrenck, 1862)
sachalinensis, Mactra sachalinensis Schrenck, 1862 - syn of: Spisula sachalinensis (Schrenck, 1862)
sachalinensis colganae, Spisula sachalinensis colganae Healy & Lamprell, 1992 - syn of: Spisula trigonella (Lamarck, 1818)
sachalinensis conjunctiva, Spisula sachalinensis conjunctiva Jeffreys, 1864 - syn of: Spisula solida (Linnaeus, 1758)
sachalinensis imperialis, Mactra sachalinensis imperialis Yokoyama, 1922 - syn of: Spisula sachalinensis (Schrenck, 1862)
sanctiandreae, Trinitasia sanctiandreae (Maury, 1925) † (FOSSIL)
sanctiblasii, Mactra sanctiblasii Maury, 1925 - syn of: Harvella elegans (Sowerby, 1825)
sanctiblasii, Harvella sanctiblasii Maury, 1925 - syn of: Harvella elegans (Sowerby, 1825)
sanctiblasii, Harvella sanctiblasii Maury, 1925 - syn of: Harvella elegans (Sowerby, 1825)
sanna, Lutraria sanna Basterot, 1825 † (FOSSIL)
sapotilla, Mulinia sapotilla Dall, 1898 † (FOSSIL)
sauliae, Mactra sauliae Reeve, 1854 - syn of: Mactra sauliana Gray, 1838
sauliana, Mactra sauliana Gray, 1838
saulii, Mactra saulii Hanley, 1843 - syn of: Mactra sauliana Gray, 1838
sauryensis, Mulinia lateralis sauryensis Olsson
sayii, Spisula sayii Gray, 1837 - syn of: Spisula raveneli (Conrad, 1832)
scaldensis, Lutraria scaldensis Urk, 1980 † (FOSSIL)
scalpellum, Scalpomactra scalpellum (Reeve, 1854) † (FOSSIL)
scalpellum, Mactra scalpellum Reeve, 1854 † - syn of: Scalpomactra scalpellum (Reeve, 1854) † (FOSSIL)
sectoris, Mactromeris sectoris Anderson & Martin, 1914 † (FOSSIL)
selbyensis, Hemimactra selbyensis Packard, 1916 † (FOSSIL)
semistriata, Mactra semistriata Reeve, 1854
semisulcata, Spisula semisulcata (Lamarck, 1805) † (FOSSIL)
semisulcata, Mactra semisulcata Deshayes, 1854 - syn of: Mactra olorina Philippi, 1846
semisulcata, Lutraria semisulcata Reeve, 1854 - syn of: Mactra deshayesi Reeve, 1854
semisulcata leves, Spisula semisulcata leves D'Orbigny, 1850 † (FOSSIL)
senegalensis, Lutraria senegalensis Gray, 1837
senegalensis, Mactra senegalensis Philippi, 1849 - syn of: Mactra glabrata Linnaeus, 1767
senegalensis, Mactra senegalensis Reeve, 1854 - syn of: Tumbeziconcha senegalica (Cosel, 1995)
senegalica, Tumbeziconcha senegalica (Cosel, 1995)
senegalica, Raeta senegalica Cosel, 1995 - syn of: Tumbeziconcha senegalica (Cosel, 1995)
sericea, Mactra sericea Brusina, 1865 - syn of: Mactra glauca Born, 1778
sericea, Mactra sericea Reeve, 1854
setosa, Mactra setosa Quoy & Quimard, 1835 - syn of: Mactra maculata Gmelin, 1791
sibyllae, Mactra sibyllae Valenciennes, 1858 - syn of: Spisula sachalinensis (Schrenck, 1862)
sieboldii, Lutraria sieboldii Reeve, 1854
silicula, Mactra silicula Deshayes, 1855 - syn of: Mactrotoma angulifera (Reeve, 1854)
silicula, Mactra silicula Reeve, 1854 - syn of: Mactrotoma compressa (Spengler, 1802)
silicula, Mactrotoma silicula Reeve, 1854 - syn of: Mactrotoma compressa (Spengler, 1802)
similis, Hemimactra solidissima similis Say
similis, Mactra similis Wood, 1828 - syn of: Mactromeris polynyma (Stimpson, 1860)
sincola, Harvella sincola Olsson, 1922 † (FOSSIL)
sinojaponica, Meropesta sinojaponica Zhuang, 1983
sinuosum, Cryptodon sinuosum (Donovan, 1801) † (FOSSIL)
siphonata, Anatina siphonata Reeve, 1863 - syn of: Laternula anatina (Linnaeus, 1758)
sisquocensis, Spisula sisquocensis Arnold, 1907 † (FOSSIL)
smithi, Anatina smithi Preston, 1905 - syn of: Laternula navicula (Reeve, 1863)
snatolensis, Spisula snatolensis Krishtofovich, 1964 † - syn of: Spisula hannibali Clark & Arnold, 1923 † (FOSSIL)
solanderi, Eastonia solanderi (Gray, 1837) † (FOSSIL)
solenoides, Darina solenoides (King & Broderip, 1832)
solenoides, Zenatia solenoides Deshayes, 1855 - syn of: Zenatia acinaces (Quoy & Gaimard, 1835)
solenoides, Lutraria solenoides Lamarck, 1801 - syn of: Lutraria oblonga (Gmelin, 1791)
solenoides, Lutraria solenoides Menke, 1843 - syn of: Lutraria rhynchaena Jonas, 1844
solida, Spisula solida (Linnaeus, 1758)
solida, Lutraria solida Hutton, 1873 † (FOSSIL)
solida, Lutraria solida Philippi, 1851 - syn of: Lutraria lutraria (Linnaeus, 1767)
solida conjunctiva, Mactra solida conjunctiva Jeffreys, 1864 - syn of: Spisula solida (Linnaeus, 1758)
solidissima, Hemimactra solidissima (Dillwyn, 1817)
solidissima similis, Hemimactra solidissima similis (Say, 1822)
sookensis, Spisula sookensis Clark & Arnold, 1923 † (FOSSIL)
sorachiensis, Spisula sorachiensis Uozumi, 1955 † (FOSSIL)
spectabilis, Mactra spectabilis Lischke, 1871 - syn of: Mactra antiquata Spengler, 1802
spengleri, Scissodesma spengleri (Linnaeus, 1767)
spinosus, Pseudomyicola spinosus Raffaele & Monticelli, 1885 - syn of: Mactra quadrangularis Reeve, 1854
squalida, Mactra squalida Lamarck, 1818 - syn of: Mactra maculata Gmelin, 1791
steinmanni, Oxyperas steinmanni Olsson, 1931 † (FOSSIL)
steynlussii, Lutraria steynlussii Huber, 2010
stimpsoni, Spisula stimpsoni Dall, 1898 - syn of: Meropesta capillacea (Reeve, 1854)
stimpsoni, Standella stimpsoni Dall, 1898 - syn of: Meropesta capillacea (Reeve, 1854)
straminea, Trigonella straminea Dunker, 1882 - syn of: Spisula sachalinensis (Schrenck, 1862)
straminea, Mactra straminea Dunker, 1882 - syn of: Spisula sachalinensis (Schrenck, 1862)
straminea, Mactra straminea Lamarck, 1818 - syn of: Scissodesma nitida (Gmelin, 1791)
striata, Mactra striata Brown, 1827 - syn of: Spisula subtruncata (da Costa, 1778)
striata, Spisula striata Brown, 1827 - syn of: Spisula subtruncata (da Costa, 1778)
striata, Mactra striata Gmelin, 1791 - syn of: Atactodea striata (Gmelin, 1791)
striata, Spisula striata Nyst, 1845 - syn of: Spisula solida (Linnaeus, 1758)
striata, Mactra striata Nyst, 1845 - syn of: Spisula solida (Linnaeus, 1758)
striata, Lutraria striata Sowerby † (FOSSIL)
striata, Mactra striata Spengler, 1802 - syn of: Mactra olorina Philippi, 1846
striatella, Mactra striatella Lamarck, 1818 - syn of: Leptospisula nivea (Gmelin, 1791)
striatella, Spisula striatella Lamarck, 1818 - syn of: Leptospisula nivea (Gmelin, 1791)
striatula, Mactrinula striatula (Linnaeus, 1767)
striatula, Mactra striatula Linnaeus, 1767 - syn of: Mactrinula striatula (Linnaeus, 1767)
strongi, Spisula strongi Burch, 1945 - syn of: Simomactra planulata (Conrad, 1837)
stultorum, Mactra stultorum (Linnaeus, 1758)
stultorum lignaria, Mactra stultorum lignaria Monterosato
subalata, Mactrellona subalata (Mörch, 1860)
subcaspia, Avimactra subcaspia Andrussow † (FOSSIL)
subcuneata, Spisula subcuneata Conrad, 1838 † (FOSSIL)
subparilis, Hemimactra subparilis Conrad, 1841 † (FOSSIL)
subplicata, Mactra subplicata Lamarck, 1818 - syn of: Mactrinula striatula (Linnaeus, 1767)
subplicata, Mactrinula subplicata Lamarck, 1818 - syn of: Mactrinula striatula (Linnaeus, 1767)
subplicata, Harvella subplicata Wood, 1828 - syn of: Mactrinula plicataria (Linnaeus, 1767)
subplicata, Mactra subplicata Wood, 1828 - syn of: Mactrinula plicataria (Linnaeus, 1767)
subponderosa, Mactrodesma subponderosa (D'Orbigny, 1852) † (FOSSIL)
subrostrata, Anatina subrostrata Lamarck, 1818 - syn of: Laternula anatina (Linnaeus, 1758)
subrostrata, Mactra subrostrata Reeve, 1854 - syn of: Mactra violacea Gmelin, 1791
substriatella, Mactra substriatella Orbigny, 1852 † (FOSSIL)
subtriangulata, Mactra subtriangulata Wood, 1828 - syn of: Paphies subtriangulata (Wood, 1828)
subtrigona, Mactra subtrigona Wood, 1841 - syn of: Goodallia triangularis (Montagu, 1803)
subtruncata, Spisula subtruncata (da Costa, 1778)
subtruncata conemenosi, Mactra subtruncata conemenosi Bucquoy, Dautzenberg & Dollfus, 1896 - syn of: Spisula subtruncata (da Costa, 1778)
subtruncata inaequalis, Mactra subtruncata inaequalis Jeffreys, 1864 - syn of: Spisula subtruncata (da Costa, 1778)
subtruncata tenuis, Mactra subtruncata tenuis Jeffreys, 1864 - syn of: Spisula subtruncata (da Costa, 1778)
subtruncata transversa, Mactra subtruncata transversa Pallary, 1902 - syn of: Spisula subtruncata (da Costa, 1778)
subtruncata triangula, Spisula subtruncata triangula (Renieri, 1804) † (FOSSIL)
subtruncata triangula, Spisula subtruncata triangula Brocchi, 1814 - syn of: Spisula subtruncata (da Costa, 1778)
subtruncatula, Spisula subtruncatula Da Costa, 1778 - syn of: Spisula subtruncata (da Costa, 1778)
suessi, Anatina suessi Oppel, 1858 † (FOSSIL)
sulcata, Mactra sulcata Bory De Saint-Vincent, 1827 - syn of: Atactodea striata (Gmelin, 1791)
sulcataria, Mactra sulcataria Deshayes, 1853 - syn of: Mactra chinensis Philippi, 1846
sulcataria, Mactra sulcataria Reeve, 1854 - syn of: Mactra chinensis Philippi, 1846
summa, Spisula summa Olsson, 1928 † (FOSSIL)
surinamensis, Mactra surinamensis Van Regteren Altena, 1968 † - syn of: Mactrella janeiroensis (Smith, 1915) † (FOSSIL)
surinamensis, Mactrotoma surinamensis Van Regteren Altena, 1968 † - syn of: Mactrella janeiroensis (Smith, 1915) † (FOSSIL)
symmetrica, Mactra symmetrica Reeve, 1854 - syn of: Mactra petitii (D'Orbigny, 1846)
taprobanensis, Mactra taprobanensis Preston, 1904 - syn of: Mactra lilacea Lamarck, 1818
taylorii, Resania taylorii Gray, 1853 - syn of: Resania lanceolata Gray, 1853
tejonensis, Mactromeris tejonensis Packard, 1916 † (FOSSIL)
tellinoides, Mactra tellinoides Conrad, 1831 - syn of: Cumingia sinuosa Adams, 1850
tellinoides, Mactrotoma tellinoides Pulteney, 1799 - syn of: Standella fragilis (Gmelin, 1791)
tenera, Mactra tenera Wood, 1828 - syn of: Oxyperas aspersa (Sowerby, 1825)
tenera, Spisula tenera Wood, 1828 - syn of: Oxyperas aspersa (Sowerby, 1825)
tenuiplicata, Raeta tenuiplicata Bartrum, 1919 † - syn of: Bartrumia tenuiplicata (Bartrum, 1919) † (FOSSIL)
tenuis, Raeta tenuis Hinds, 1898 - syn of: Raeta pulchella (Adams & Reeve, 1850)
tenuis, Mactra tenuis Montagu, 1803 - syn of: Abra tenuis (Montagu, 1803)
tenuis, Lutraria tenuis Philippi, 1845 - syn of: Darina solenoides (King & Broderip, 1832)
tepikiensis, Zenatia tepikiensis Beu, 1966 † (FOSSIL)
thaanumi, Mactra thaanumi Dall, Bartsch & Rehder, 1938
thracioides, Tumbeziconcha thracioides (Adams & Reeve, 1850)
tigilensis, Spisula tigilensis (Krishtofovich, 1947) † (FOSSIL)
transversa, Oxyperas transversa (Reeve, 1854)
trapezoidalis, Lutraria trapezoidalis Powell & Bartrum, 1929 † (FOSSIL)
triangula, Mactra triangula Brocchi, 1814 - syn of: Spisula subtruncata (da Costa, 1778)
triangula, Spisula subtruncata triangula Renieri (FOSSIL)
triangularis, Mactra triangularis Lamarck, 1818 - syn of: Oxyperas lentiginosa (Gould, 1852)
triangulata, Mactromeris triangulata Zhidkova, 1994 † (FOSSIL)
trigonella, Spisula trigonella (Lamarck, 1818)
trigonella, Mactra trigonella Lamarck, 1818 - syn of: Spisula trigonella (Lamarck, 1818)
trigonum, Rangia trigonum Petit De La Saussaye, 1853 - syn of: Rangia mendica (Gould, 1851)
tripartita, Mactra tripartita Forbes, 1846
tristis, Cyclomactra tristis (Reeve, 1854)
tristis, Mactra tristis Gray, 0 - syn of: Cyclomactra tristis (Reeve, 1854)
tristis, Mactra tristis Reeve, 1854 - syn of: Cyclomactra tristis (Reeve, 1854)
truncata, Petromactra truncata (Gabb, 1864) † (FOSSIL)
truncata, Anatina truncata Lamarck, 1818 - syn of: Cochlodesma praetenue (Pulteney, 1799)
truncata, Spisula truncata Montagu, 1808 - syn of: Spisula solida (Linnaeus, 1758)
truncata, Mactra truncata Montague, 1808
truncata australia, Anatina truncata australia Lamarck, 1818 - syn of: Laternula rostrata (Sowerby, 1839)
truncatum, Rangia truncatum Petit De La Saussaye, 1853 - syn of: Rangia mendica (Gould, 1851)
tryphera, Mactrinula tryphera Melvill, 1899
tumbezia, Mactrellona tumbezia Olsson, 1921 † (FOSSIL)
tumida, Mactra tumida Bohm, 1926 † (FOSSIL)
tumida, Mactra tumida Spengler, 1802 - syn of: Mactra turgida Gmelin, 1791
turgida, Mactra turgida Gmelin, 1791
turneri, Lutraria turneri Jousseaume, 1891
typica, Mulinia typica Gray, 1837 - syn of: Mulinia edulis (King, 1831)
undulata, Lutraria undulata (Gould, 1851) - syn of: Raeta undulata (Gould, 1851)
undulata, Raeta undulata (Gould, 1851)
undulata, Lutraria undulata Gould, 1851 - syn of: Raeta undulata (Gould, 1851)
unicolor, Mactra unicolor Bory De Saint-Vincent, 1827 - syn of: Scissodesma nitida (Gmelin, 1791)
valhosierr, Leptomactra valhosierr (Gardner, 1947) † (FOSSIL)
vanattae, Mactra vanattae Pilsbry & Lowe, 1932 - syn of: Mactrotoma isthmica (Pilsbry & Lowe, 1932)
vanattae acymata, Mactra vanattae acymata Pilsbry & Lowe, 1932 - syn of: Mactrotoma isthmica (Pilsbry & Lowe, 1932)
vanattae acymata, Mactrotoma vanattae acymata Pilsbry & Lowe, 1932 - syn of: Mactrotoma isthmica (Pilsbry & Lowe, 1932)
velata, Mactrotoma velata (Philippi, 1849)
velata, Mactra velata Philippi, 1849 - syn of: Mactrotoma velata (Philippi, 1849)
vellai, Lutraria vellai (Beu, 1966) † (FOSSIL)
veneriformis, Spisula veneriformis Clark, 1925 † (FOSSIL)
veneriformis, Mactra quadrangularis veneriformis Deshayes
veneriformis, Mactra veneriformis Deshayes, 1854 - syn of: Mactra quadrangularis veneriformis Deshayes, 1854
veneriformis, Mactra veneriformis Wood, 1828 - syn of: Astarte borealis (Schumacher, 1817)
ventricosa, Mactrellona ventricosa Gould, 1851 - syn of: Mactrellona exoleta (Garay, 1837)
versicolor, Diaphoromactra versicolor (Tate, 1887)
victoriae, Zenatina victoriae (Pritchard, 1903)
villosiuscula, Anatina villosiuscula Macgillivray, 1827 - syn of: Thracia villosiuscula (Macgillivray, 1827)
violacea, Mactra violacea Chemnitz, 1782 - syn of: Mactra violacea Gmelin, 1791
violacea, Mactra violacea Gmelin, 1791
virgo, Mactra virgo Reeve, 1854 - syn of: Mactra pura Reeve, 1854
vitaliana, Mactra vitaliana D'Orbigny, 1844 † (FOSSIL)
vitaliana balcica, Mactra vitaliana balcica Marcarovici, 1935 † (FOSSIL)
vitrea, Mactra vitrea Dillwyn, 1817 - syn of: Clementia papyracea (Gmelin, 1791)
vitrea, Mactra vitrea Gray, 1837 - syn of: Anatina grayi Huber, 2015
vitrea, Mactra vitrea Spengler, 1802 - syn of: Clementia papyracea (Gmelin, 1791)
vladivostokensis, Mactra vladivostokensis Bartsch, 1929 - syn of: Mactromeris polynyma (Stimpson, 1860)
voji korolevae, Spisula voji korolevae Zhidkova, 1972 - syn of: Mactromeris polynyma (Stimpson, 1860)
voyi, Mactromeris polynyma voyi Gabb
voyi, Spisula voyi Gabb, 1860 - syn of: Mactromeris polynyma voyi (Gabb, 1866)
voyi korolevae, Mactromeris voyi korolevae Zhidkova, 1972 - syn of: Mactromeris polynyma voyi (Gabb, 1866)
vulgaris, Lutraria vulgaris Fleming, 1828 - syn of: Lutraria lutraria (Linnaeus, 1767)
waipipiana, Zenatia waipipiana Beu, 1966 † (FOSSIL)
westralis, Mactra westralis Lamprell & Whitehead, 1990
williamsi, Spisula williamsi (Berry, 1960)
williamsi, Cyclomactra williamsi (Marwick, 1948) † (FOSSIL)
williamsi, Mactra williamsi Berry, 1960 - syn of: Spisula williamsi (Berry, 1960)
wordeni, Cymbophora wordeni Gardner, 1916 † (FOSSIL)
xenophonti, Spisula xenophonti Krishtofovich, 1981 - syn of: Mactromeris polynyma (Stimpson, 1860)
yamamurae, Mactrotoma yamamurae Habe & Kosuge, 1966 - syn of: Heterocardia gibbosula Deshayes, 1855
yokohamaensis, Raeta yokohamaensis Pilsbry, 1895 - syn of: Raeta pulchella (Adams & Reeve, 1850)
yokohamensis, Raeta yokohamensis Pilsbry, 1895 † (FOSSIL)
zealandica, Zenatina zealandica Gray, 1837 - syn of: Zenatia acinaces (Quoy & Gaimard, 1835)
zealandica, Lutraria zealandica Gray, 1837 - syn of: Zenatia acinaces (Quoy & Gaimard, 1835)
zelandica, Zenatina zelandica Gray, 1837 - syn of: Zenatia acinaces (Quoy & Gaimard, 1835)
zellwegeri, Mactra zellwegeri Jousseaume, 1894 - syn of: Mactra ochracea Von Martens, 1880
zonaria, Mactra zonaria Da Costa, 1778 - syn of: Spisula solida (Linnaeus, 1758)
zonata, Mactra zonata Lischke, 1871 - syn of: Mactra quadrangularis Reeve, 1854
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