-
Mactromeris abbotti
Wiedley, 1928 † (FOSSIL)
-
Mactra abbreviata
J.B.P.A. Lamarck, 1818
-
Mactra abbreviata meritriciformis
L.A. Reeve, 1854
-
Mactra abbreviata obesa
L.A. Reeve, 1854
-
Mactra achatina
H.S. Holten, 1802
-
Mactra achatina maculosa
J.B.P.A. Lamarck, 1818
-
Mactra achatina ornata
J.E. Gray, 1837
-
Zenatia acinaces
(J.R.C. Quoy & J.P. Gaimard, 1835)
-
Zenatia acinaces cumingiana
G.P. Deshayes, 1854
-
Mactra (Maorimactra) acuminella
Finlay, 1930 † (FOSSIL)
-
Andrusella acutecarinata
(Andrussov 1902) † (FOSSIL)
-
Mactromeris acutirostrata
A. Packard, 1916 † (FOSSIL)
-
Scissodesma acutissima
(R. von Cosel, 1995)
-
Spisula adamsi
A.A. Olsson, 1961
-
Mactromeris addicotti
S. Kanno, 1971 † (FOSSIL)
-
Crassula aequilatera
(L.A. Reeve, 1854)
-
Mactra aequisulcata
G.B. III Sowerby, 1894
-
Mactrellona alata
(L. Spengler, 1802)
-
Mactromeris albaria
(T.A. Conrad, 1848 †) (FOSSIL)
-
Spisula albertantonorum
R. Marquet, 2005 † (FOSSIL)
-
Lutraria alderi
Unknown
-
Tresus allomyax
E.V. Coan & P.H. Valentich-Scott, 2000
-
Mactra alta
G.P. Deshayes, 1855
-
Cyclomactra altilunula
(J. Marwick, 1927 †) (FOSSIL)
-
Anatina anatina
(L. Spengler, 1802)
-
Scissodesma angolensis
(R. von Cosel, 1995)
-
Mactra (Mactrotoma) angulifera
(L.A. Reeve, 1854)
-
Lutraria angusta
G.P. Deshayes, 1830 † (FOSSIL)
-
Mactra (Mactrotoma) angusta
(L.A. Reeve, 1854)
-
Zenatia (Zenatiopsis) angustata
R. Tate, 1879 † (FOSSIL)
-
Lutraria angustior
R.A. Philippi, 1844
-
Mactra (Mactrotoma) antecedens
(T. Iredale, 1930)
-
Mactra antiquata
L. Spengler, 1802
-
Mactra aphrodina
L.A. Reeve, 1854
-
Spisula arcuata
(Sowerby, 1817 †) (FOSSIL)
-
Anatina arcuata
E. Forbes, 1846
-
Mactra artensis
R.P. Montrouzier, 1859
-
Mactra artopta
Woods, 1850 † (FOSSIL)
-
Spisula asperaeformis
S. Nomura & N. Zinbo, 1934
-
Oxyperas aspersa
(G.B. I Sowerby, 1825)
-
Mactra asymmetrica
Krishtofovich, 1954 † (FOSSIL)
-
Mactra auca
d'Orbigny, 1842 † (FOSSIL)
-
Mactromeris ausiensis
L. Krishtofovich, 1994 † (FOSSIL)
-
Mactra austeniana
C.J. Maury, 1912 † (FOSSIL)
-
Spisula austini
(K.L. Lamprell & T. Whitehead, 1990)
-
Lutraria australis
G.P. Deshayes, 1855 † (FOSSIL)
-
Mactra australis
J.B.P.A. Lamarck, 1818
-
Avimactra aviculoides
Andrussov 1905 † (FOSSIL)
-
Mactra axiniformis
R. Tate, 1887 † (FOSSIL)
-
Mactra basteroti
C. Mayer, 1853 † (FOSSIL)
-
Oxyperas belliana
(W.R.B. Oliver, 1915)
-
Oxyperas bernardi
(H.A. Pilsbry, 1904)
-
Spisula (Ruellia) bernayi
(A.E.M. Cossmann, 1886 †) (FOSSIL)
-
Cymbophora berryi
Gardner, 1916 † (FOSSIL)
-
Mulinia bicolor
J.E. Gray, 1837
-
Scalpomactra biconvexa
Powell & J.A. Bartrum, 1929 † (FOSSIL)
-
Mactromeris bisculpturata
Anderson & G.D. Hanna, 1942 † (FOSSIL)
-
Mactra (Maorimactra) bodmani
J.D. Stilwell & Zinsmeister, 1992 † (FOSSIL)
-
Mactra braziera
E.A. Smith, 1891
-
Mactromeris brevirostrata
A. Packard, 1916 † (FOSSIL)
-
Spisula brombachensis
D.H. Schneider & O. Mandic, 2014 † (FOSSIL)
-
Barymactra bucklandi
(Defrance 1823) † (FOSSIL)
-
Lutraria budkeri
M. Nicklés, 1955
-
Mactra bulgarica
(F. Toula, 1909 †) (FOSSIL)
-
Mactra burdigalensis
C. Mayer, 1864 † (FOSSIL)
-
Mulinia byronensis
Gray, 1837
-
Spisula caleta
A.A. Olsson, 1928 † (FOSSIL)
-
Mactra (Mactrotoma) californica
(T.A. Conrad, 1837)
-
Oxyperas callistoides
A.A. Olsson, 1928 † (FOSSIL)
-
Raeta campechiensis
(J.E. Gray, 1825)
-
Tresus capax
(A.A. Gould, 1850)
-
Mactromeris capayana
(Vokes 1939) † (FOSSIL)
-
Lutraria capensis
L.A. Reeve, 1854
-
Simomactra capensis
(G.B. III Sowerby, 1892)
-
Meropesta capillacea
(L.A. Reeve, 1854)
-
Mactra carteri
A.G. Beu, 2006 † (FOSSIL)
-
Mactra caspia
K.E.I. von Eichwald † (FOSSIL)
-
Mactromeris catilliformis
(T.A. Conrad, 1867)
-
Mulinia chilota
D. Frassinetti, 1997 † (FOSSIL)
-
Mactra chinensis
R.A. Philippi, 1846
-
Mactra chinensis carneopicta
H.A. Pilsbry, 1904
-
Simomactra chionia
(J.R. le B. Tomlin, 1921)
-
Mactra chipolana
W.H. Dall, 1898 † (FOSSIL)
-
Mactra (Maorimactra) chrydaea
(H.H. Suter, 1911 †) (FOSSIL)
-
Spisula chulgunensis
(L. Krishtofovich, 1947 †) (FOSSIL)
-
Mactra cineraria
(C. Linnaeus, 1758)
-
Mactra clathrodon
Lea, 1833 † (FOSSIL)
-
Mulinia cleryana
(A.V.M.D. D'Orbigny, 1846)
-
Mulinia cleryana branneri
W.H. Dall, 1901
-
Mactrellona clisia
(W.H. Dall, 1915)
-
Darcinia columbiana
Clark & J.W. Durham, 1946 † (FOSSIL)
-
Lutraria complanata
(J.F. Gmelin, 1791)
-
Mactra (Mactrotoma) compressa
(L. Spengler, 1802)
-
Spisula compressa
(G.P. Deshayes, 1832 †) (FOSSIL)
-
Aliomactra compressa
Stephenson 1952 † (FOSSIL)
-
Spisula (Hemimactra) confraga
(T.A. Conrad, 1833 †) (FOSSIL)
-
Mulinia congesta
(T.A. Conrad, 1833 †) (FOSSIL)
-
Mactra constricta
Woods, 1850 † (FOSSIL)
-
Scalpomactra continua
Finlay, 1930 † (FOSSIL)
-
Austromactra contortula
(G.P. Deshayes, 1857 †) (FOSSIL)
-
Austromactra contraria
(L.A. Reeve, 1854)
-
Oxyperas coppingeri
(E.A. Smith, 1884)
-
Mactra cordiformis
L.A. Reeve, 1854
-
Spisula couttsi
J. Marwick, 1948 † (FOSSIL)
-
Spisula craspedota
Gardner, 1947 † (FOSSIL)
-
Spisula crassitesta
(Finlay, 1927 †) (FOSSIL)
-
Zenatia cretacea
(Woods, 1917 †) (FOSSIL)
-
Mactra crossei
(R.W. Dunker, 1877)
-
Mactra cumingii
L.A. Reeve, 1854
-
Mactra cuneata
J.F. Gmelin, 1791
-
Rangia cuneata
Sowerby, 1831
-
Lutraria curta
L.A. Reeve, 1854
-
Leptomactra curtidens
(W.H. Dall, 1898 †) (FOSSIL)
-
Mactra cygnus
J.F. Gmelin, 1791
-
Ovamactra cyma
W.P. Woodring, 1982 † (FOSSIL)
-
Anatina cyprinus
(W. Wood, 1828)
-
Eopapyrina darienensis
(W.H. Dall, 1898 †) (FOSSIL)
-
Mactra darwinii
Sowerby, 1846 † (FOSSIL)
-
Spisula decisa
† (FOSSIL)
-
Leptomactra delumbis
(T.A. Conrad, 1832 †) (FOSSIL)
-
Spisula densa
W.H. Dall, 1898 † (FOSSIL)
-
Pseudocardium densatum
(T.A. Conrad, 1856 †) (FOSSIL)
-
Mactra (Mactrotoma) depressa
(L. Spengler, 1802)
-
Barymactra dernburgi
Bohm & Weisfermel, 1913 † (FOSSIL)
-
Oxyperas deserta
A.A. Olsson, 1928 † (FOSSIL)
-
Mactra deshayesi
L.A. Reeve, 1854
-
Spisula discors
(J.E. Gray, 1837)
-
Mactra dissimilis
L.A. Reeve, 1845
-
Spisula dodona
W.H. Dall, 1898 † (FOSSIL)
-
Mactrinula dolabrata
(L.A. Reeve, 1854)
-
Simomactra dolabriformis
(T.A. Conrad, 1867)
-
Mactra ducomi
A.E.M. Cossmann & M.A. Peyrot, 1909 † (FOSSIL)
-
Mactra eburnea
R.A. Philippi, 1849
-
Mulinia edulis
(King, 1831)
-
Oxyperas egena
(L.A. Reeve, 1854)
-
Harvella elegans
(Sowerby, 1825)
-
Mactrellona elisia
(W.H. Dall, 1915 †) (FOSSIL)
-
Spisula elliptica
(J. Brown, 1827)
-
Oxyperas elongata
(J.R.C. Quoy & J.P. Gaimard, 1835)
-
Resania elongata
A.G. Beu, 1966 † (FOSSIL)
-
Pseudocardium evalensis
(Ilyina, 1957 †) (FOSSIL)
-
Spisula ewekoroensis
(O.S. Adegoke, 1977 †) (FOSSIL)
-
Mulinia exalbida
J.E. Gray, 1837
-
Oxyperas exensis
P.A. Maxwell, 1978 † (FOSSIL)
-
Mactra eximia
L.A. Reeve, 1854
-
Mactrellona exoleta
(Garay, 1837)
-
Resania exoptata
J.A. Bartrum & Powell, 1928 † (FOSSIL)
-
Mactra (Mactrotoma) explanata
(L.A. Reeve, 1854)
-
Pseudocardium ezodensatum
(Kubota, 1950 †) (FOSSIL)
-
Mactra fabreana
A.V.M.D. D'Orbigny † (FOSSIL)
-
Simomactra falcata
(Gould, 1850)
-
Lutraria (Cryptodon) ferruginosum
E. Forbes, 1843 † (FOSSIL)
-
Oxyperas flemingi
Marwick 1960 † (FOSSIL)
-
Zenatia flemingi
J. Marwick, 1948 † (FOSSIL)
-
Longimactra flemingi
J. Marwick, 1960 † (FOSSIL)
-
Rangia flexuosa
(T.A. Conrad, 1839)
-
Spisula (Standella) flindersi
T. Iredale, 1930
-
Spisula (Standella) fragilis
(J.F. Gmelin, 1791)
-
Zenatia (Zenatiopsis) fragilis
(G.B. Pritchard, 1896 †) (FOSSIL)
-
Lutraria frangula
Urk, 1980 † (FOSSIL)
-
Mactra fuegiensis
E.A. Smith, 1905
-
Spisula funerata
(T.A. Conrad, 1848 †) (FOSSIL)
-
Raeta gabbi
H.A. Pilsbry & Johnson, 1917 † (FOSSIL)
-
Mactra garreti
Ortmann 1902 † (FOSSIL)
-
Heterocardia gibbosula
G.P. Deshayes, 1855
-
Mactra gigas
G.W. Nowell-Usticke, 1969
-
Crassula gilberti
(J.A. Bartrum, 1919 †) (FOSSIL)
-
Scalpomactra glabra
(Sowerby, 1846 †) (FOSSIL)
-
Mactra glabrata
C. Linnaeus, 1767
-
Anatina gladius
Laube, 1865 † (FOSSIL)
-
Mactra glauca
I. von Born, 1778
-
Mactrinula goniocyma
(H.A. Pilsbry & A.A. Olsson, 1932)
-
Cymbophora gracilis
(F.B. Meek & Hayden, 1860 †) (FOSSIL)
-
Lutraria graeffei
C. Mayer, 1889 † (FOSSIL)
-
Lutraria grandis
(F.W. Hutton, 1873 †) (FOSSIL)
-
Mactra grandis
J.F. Gmelin, 1791
-
Mactra grandis mera
G.P. Deshayes, 1854
-
Mactra (Heteromactra) grateloupi
A.E.M. Cossmann & M.A. Peyrot, 1909 † (FOSSIL)
-
Anatina grayi
M. Huber, 2015
-
Mactra guidoi
J.H. Signorelli & F. Scarabino, 2010
-
Pseudocardium haboroensis
M. Yokoyama, 1927 † (FOSSIL)
-
Mactra hamiltonensis
R. Tate, 1887 † (FOSSIL)
-
Spisula hannibali
Clark & R. Arnold, 1923 † (FOSSIL)
-
Spisula (Hemimactra) harrisi
A.A. Olsson, 1914 † (FOSSIL)
-
Mactromeris hemphillii
(W.H. Dall, 1894)
-
Cymbophora hetonaiensis
T. Nagao & Otatume, 1938 † (FOSSIL)
-
Mactra hians
R.A. Philippi, 1846
-
Mactra (Electromactra) howchiniana
(R. Tate, 1887 †) (FOSSIL)
-
Spisula hualtaca
A.A. Olsson, 1928 † (FOSSIL)
-
Mactra hybrida
Dufour, 1881 † (FOSSIL)
-
Trinitasia iheringi
(W.H. Dall, 1897)
-
Lutraria impar
L.A. Reeve, 1854
-
Mactra inaequalis
L.A. Reeve, 1854
-
Spisula inaequilatera
(P. Nyst, 1845 †) (FOSSIL)
-
Spisula inaequilateralis
(Meyer, 1886 †) (FOSSIL)
-
Mactra inaequipartita
A.E.M. Cossmann & M.A. Peyrot, 1909 † (FOSSIL)
-
Mactra incarnata
L.A. Reeve, 1854
-
Mactra incerta
E.A. Smith, 1885
-
Anatina inconstans
(R. von Cosel, 1995)
-
Lutraria inhacaensis
(P.H. Boshoff, 1965)
-
Mactra iridescens
J.T. Kuroda & T. Habe in T. Habe, 1958
-
Mactra irizari
R.O. Wilckens, 1912 † (FOSSIL)
-
Mactra isabelleana
D'Orbigny, 1846
-
Mactra (Mactrotoma) isthmica
(H.A. Pilsbry & H.N. Lowe, 1932)
-
Mactra (Mactrotoma) isthmica fonsecana
L.G. Hertlein & A.M. Strong, 1950
-
Mactra (Coelomactra) iwatensis
(Hatai 1940) † (FOSSIL)
-
Mactra jacksonensis
E.A. Smith, 1885
-
Spisula jacksonensis
† (FOSSIL)
-
Mactrella janeiroensis
(E.A. Smith, 1915 †) (FOSSIL)
-
Nymphactra jonasseni
J.D. Stilwell & Zinsmeister, 1992 † (FOSSIL)
-
Mactra kanakina
S.M. Souverbie, 1860
-
Mactra kavakamiensis
Krishtofovich, 1954 † (FOSSIL)
-
Tresus keenae
(J.T. Kuroda & T. Habe, 1950)
-
Mactra kunstleri
A.E.M. Cossmann & M.A. Peyrot, 1909 † (FOSSIL)
-
Austromactra lamberti
(G.P. Deshayes, 1857 †) (FOSSIL)
-
Resania lanceolata
J.E. Gray, 1853
-
Pteropsella lapidosa
(T.A. Conrad, 1846 †) (FOSSIL)
-
Mactra largillierti
R.A. Philippi, 1849
-
Mulinia lateralis
(T. Say, 1822)
-
Mulinia lateralis sauryensis
A.A. Olsson, 1922
-
Lutraria latissima
G.P. Deshayes, 1830 † (FOSSIL)
-
Austromactra laudunensis
(A. Watelet, 1853 †) (FOSSIL)
-
Oxyperas leda
(Finlay, 1924 †) (FOSSIL)
-
Oxyperas lentiginosa
(A.A. Gould, 1852)
-
Mulinia levicardo
(E.A. Smith, 1881)
-
Mactra lilacea
J.B.P.A. Lamarck, 1818
-
Austromactra loustauae
(J.F. Bayan, 1873 †) (FOSSIL)
-
Lutraria lutraria
(C. Linnaeus, 1767)
-
Mactra luzonica
L.A. Reeve, 1854
-
Lutraria (Cryptodon) mactraeformis
R. Tate, 1887 † (FOSSIL)
-
Mactra maculata
J.F. Gmelin, 1791
-
Mactra malina
C. Hedley, 1915
-
Mactra maracaibensis
F. Hodson, 1931 † (FOSSIL)
-
Mactra marplatensis
M. Doello-Jurado, 1918
-
Mactra marwicki
A.G. Beu, 2006 † (FOSSIL)
-
Leptomactra marylandica
(W.H. Dall, 1898 †) (FOSSIL)
-
Willimactra (Petromactra) mathewsonii
(W.M. Gabb, 1864 †) (FOSSIL)
-
Mactra (Nannomactra) matthewsi
(R. Tate, 1888)
-
Lutraria maxima
I.H. Jonas, 1844
-
Pseudocardium meganosensis
Clark & Woodford, 1927 † (FOSSIL)
-
Mactra mekranensis
R.B. Newton, 1905 † (FOSSIL)
-
Rangia mendica
(A.A. Gould, 1851)
-
Mactra mera
L.A. Reeve, 1854
-
Mactromeris mercedensis
A. Packard, 1916 † (FOSSIL)
-
Raeta meridionalis
R. Tate, 1889
-
Mactromeris merriami
A. Packard, 1916 † (FOSSIL)
-
Mactromeris merriami longifrons
H. Turner, 1938 † (FOSSIL)
-
Geltena meyeri
R. Casey, 1961 † (FOSSIL)
-
Scissodesma micronitida
(R. von Cosel, 1995)
-
Anatina millepunctata
E.F. de Vogel, 1895 † (FOSSIL)
-
Mactra mississippiensis
T.A. Conrad, 1848 † (FOSSIL)
-
Mactra mitis
L.A. Reeve, 1854
-
Standella (Eastonia) mitis
C. Mayer, 1867 † (FOSSIL)
-
Mulinia modesta
(P.P. Carpenter, 1864)
-
Mactromeris montereyana
R. Arnold, 1908 † (FOSSIL)
-
Mactra mula
J. Marwick, 1948 † (FOSSIL)
-
Mactromeris muliniaformis
Wagner & Schilling, 1923 † (FOSSIL)
-
Spisula murchisoni
(L.A. Reeve, 1854)
-
Spisula (Standella) mystrosura
J.D. Stilwell & Zinsmeister, 1992 † (FOSSIL)
-
Mactra nadali
A.E.M. Cossmann & M.A. Peyrot, 1909 † (FOSSIL)
-
Mactromeris nagakoensis
K.M. Hatai & S. Nisiyama, 1949 † (FOSSIL)
-
Mactra (Mactrotoma) nasuta
(Gould, 1851)
-
Meropesta nicobarica
(J.F. Gmelin, 1791)
-
Scissodesma (Crepispisula) nigeriensis
(Adegoke 1977) † (FOSSIL)
-
Mactra nipponica
J.T. Kuroda & T. Habe in J.T. Kuroda & al., 1971
-
Scissodesma nitida
(J.F. Gmelin, 1791)
-
Leptospisula nivea
(J.F. Gmelin, 1791)
-
Mactra nucleiformis
C. Mayer, † (FOSSIL)
-
Mactra nucleiformis duvergieri
A.E.M. Cossmann & M.A. Peyrot, 1909 † (FOSSIL)
-
Tresus nuttallii
(T.A. Conrad, 1837)
-
Lutraria oblonga
(J.F. Gmelin, 1791)
-
Lutraria oblonga expansa
G.F. Dollfus, Cotter & R. dos Santos Gomes, 1904 † (FOSSIL)
-
Mactra oblonga
R.A. Philippi, 1887 † (FOSSIL)
-
Spisula obtruncata
Woods, 1850 † (FOSSIL)
-
Mactra ochracea
E.C. Von Martens, 1880
-
Cymbophora okadakensis
Tamura, 1977 † (FOSSIL)
-
Mactra olorina
R.A. Philippi, 1846
-
Mactra opposita
L.A. Reeve, 1854
-
Mactra ordinaria
(E.A. Smith, 1898)
-
Mactra orthogonalis
Dufour, 1881 † (FOSSIL)
-
Pseudocardium orthomorpha
Grant & H.R. Gale, 1931 † (FOSSIL)
-
Mulinia orthria
Gardner 1928 † (FOSSIL)
-
Pteroluter othnius
Saul, 1973 † (FOSSIL)
-
Mactra ovalis
Sowerby, 1817
-
Spisula ovalis
(J. de C. Sowerby, 1817)
-
Cyclomactra ovata
(J.E. Gray, 1843)
-
Pseudocardium pabloensis
A. Packard in Clark, 1915 † (FOSSIL)
-
Pseudocardium packardi
R.E. Dickerson, 1917 † (FOSSIL)
-
Lutraria paeteli
C. Mayer, 1889 † (FOSSIL)
-
Tresus pajaroanus
(T.A. Conrad, 1857 †) (FOSSIL)
-
Mulinia pallida
(W.J. Broderip & G.B. I Sowerby, 1829)
-
Mactra panchia
R.B. Watson, 1886
-
Pseudocardium panzana
(Loel & Corey, 1932 †) (FOSSIL)
-
Spisula paralis
† (FOSSIL)
-
Austromactra parameces
(A.E.M. Cossmann, 1886 †) (FOSSIL)
-
Spisula parilis
(T.A. Conrad, 1833 †) (FOSSIL)
-
Oxyperas parinensis
A.A. Olsson, 1928 † (FOSSIL)
-
Anatina parvula
Thurmann & Etallon, 1862 † (FOSSIL)
-
Mactra patagonica
d'Orbigny, 1846
-
Raeta pellicula
(L.A. Reeve, 1854)
-
Spisula (Standella) pellucida
(J.F. Gmelin, 1791)
-
Spisula (Standella) pellucida hubbardi
(T. Iredale, 1929)
-
Cryptomactra pesanseris
(Mayer-Eymar †) (FOSSIL)
-
Mactra petitii
(A.V.M.D. D'Orbigny, 1846)
-
Spisula (Eomactra) piscinasina
Garvie, 2013 † (FOSSIL)
-
Simomactra planulata
(T.A. Conrad, 1837)
-
Mactrinula plicataria
(C. Linnaeus, 1767)
-
Raeta plicatella
(J.B.P.A. Lamarck, 1818)
-
Tumbeziconcha plicatilis
(L.A. Reeve, 1854)
-
Mactra podolica
K.E.I. von Eichwald, 1830 † (FOSSIL)
-
Mactromeris polynyma
(W. Stimpson, 1860)
-
Mactromeris polynyma alaskana
(W.H. Dall, 1894)
-
Mactromeris polynyma voyi
(W.M. Gabb, 1866)
-
Mactrodesma ponderosa
(T.A. Conrad, 1830 †) (FOSSIL)
-
Mulinia pontchartrainensis
J.P.E. Morrison, 1965
-
Willimactra popenoei
Saul, 1973 † (FOSSIL)
-
Spisula praetenuis
(T.A. Conrad, 1833 †) (FOSSIL)
-
Spisula precursor
W.H. Dall, 1909 † (FOSSIL)
-
Mactra proaspera
F. Sacco, 1900
-
Oxyperas proaspersa
(F. Sacco, 1901 †) (FOSSIL)
-
Mactra procrassa
Woods, 1850 † (FOSSIL)
-
Mactra protoreevesii
Noetling, 1901 † (FOSSIL)
-
Mactra pulchella
R.A. Philippi, 1846
-
Raeta pulchella
(A. Adams & L.A. Reeve, 1850)
-
Mactra pura
L.A. Reeve, 1854
-
Mactra pusilla
R.A. Philippi, 1887
-
Anatina putatoria
White, 1887 † (FOSSIL)
-
Willimactra putida
Saul, 1973 † (FOSSIL)
-
Mactra pyrenaicensis
A.E.M. Cossmann, 1923 † (FOSSIL)
-
Mactra quadrangularis
L.A. Reeve, 1854
-
Mactra quadrangularis veneriformis
G.P. Deshayes in L.A. Reeve, 1854
-
Mactra queenslandica
Smith, 1914
-
Mactra quirosana
F. Hodson, 1931
-
Mactromeris ramonensis
A. Packard & Clark, 1915 † (FOSSIL)
-
Spisula rappahannockensis
Gardner, 1944 † (FOSSIL)
-
Spisula raveneli
(T.A. Conrad, 1832)
-
Austromactra recondita
(G.P. Deshayes, 1857 †) (FOSSIL)
-
Mactrinula reevesii
(J.E. Gray, 1837)
-
Lutraria rhynchaena
I.H. Jonas, 1844
-
Tanysiphon rivalis
W.H. Benson, 1858
-
Mactra rochebrunei
É. Lamy, 1916
-
Barymactra rostrata
(L. Spengler, 1802)
-
Austromactra rufescens
(J.B.P.A. Lamarck, 1818)
-
Eastonia rugosa
(G.S. Helbling, 1779 †) (FOSSIL)
-
Mactromeris rushi
Wagner & Schilling, 1923 † (FOSSIL)
-
Darina rustica
M. Huber, 2010
-
Spisula sachalinensis
(L. von Schrenck, 1862)
-
Trinitasia sanctiandreae
(C.J. Maury, 1925 †) (FOSSIL)
-
Lutraria sanna
B. de Basterot, 1825 † (FOSSIL)
-
Mulinia sapotilla
W.H. Dall, 1898 † (FOSSIL)
-
Mactra sauliana
J.E. Gray, 1838
-
Lutraria scaldensis
Urk, 1980 † (FOSSIL)
-
Scalpomactra scalpellum
(L.A. Reeve, 1854 †) (FOSSIL)
-
Mactromeris sectoris
Anderson & Martin, 1914 † (FOSSIL)
-
Spisula (Hemimactra) selbyensis
A. Packard, 1916 † (FOSSIL)
-
Mactra semistriata
L.A. Reeve, 1854
-
Spisula semisulcata
(J.B.P.A. Lamarck, 1805 †) (FOSSIL)
-
Spisula semisulcata leves
A.V.M.D. D'Orbigny, 1850 † (FOSSIL)
-
Lutraria senegalensis
J.E. Gray, 1837
-
Tumbeziconcha senegalica
(R. von Cosel, 1995)
-
Mactra sericea
L.A. Reeve, 1854
-
Lutraria sieboldii
L.A. Reeve, 1854
-
Harvella sincola
A.A. Olsson, 1922 † (FOSSIL)
-
Meropesta sinojaponica
Z. Zhuang, 1983
-
Lutraria (Cryptodon) sinuosum
(E. Donovan, 1801 †) (FOSSIL)
-
Spisula sisquocensis
R. Arnold, 1907 † (FOSSIL)
-
Eastonia solanderi
(J.E. Gray, 1837 †) (FOSSIL)
-
Darina solenoides
(P.P. King & W.J. Broderip, 1832)
-
Lutraria solida
F.W. Hutton, 1873 † (FOSSIL)
-
Spisula solida
(C. Linnaeus, 1758)
-
Spisula (Hemimactra) solidissima
(L.W. Dillwyn, 1817)
-
Spisula (Hemimactra) solidissima similis
(T. Say, 1822)
-
Spisula sookensis
Clark & R. Arnold, 1923 † (FOSSIL)
-
Spisula sorachiensis
S. Uozumi, 1955 † (FOSSIL)
-
Cymbophora species
† (FOSSIL)
-
Scissodesma spengleri
(C. Linnaeus, 1767)
-
Oxyperas steinmanni
A.A. Olsson, 1931 † (FOSSIL)
-
Lutraria steynlussii
M. Huber, 2010
-
Lutraria striata
J. de C. Sowerby † (FOSSIL)
-
Mactrinula striatula
(C. Linnaeus, 1767)
-
Mactra stultorum
(C. Linnaeus, 1758)
-
Mactra stultorum lignaria
T.A. de M. Monterosato
-
Mactrellona subalata
(O.A.L. Mörch, 1860)
-
Avimactra subcaspia
Andrussow † (FOSSIL)
-
Spisula subcuneata
T.A. Conrad, 1838 † (FOSSIL)
-
Spisula (Hemimactra) subparilis
T.A. Conrad, 1841 † (FOSSIL)
-
Mactrodesma subponderosa
(A.V.M.D. D'Orbigny, 1852 †) (FOSSIL)
-
Mactra substriatella
Orbigny, 1852 † (FOSSIL)
-
Spisula subtruncata
(da Costa, 1778)
-
Spisula subtruncata triangula
(Renieri, 1804 †) (FOSSIL)
-
Anatina suessi
Oppel, 1858 † (FOSSIL)
-
Spisula summa
A.A. Olsson, 1928 † (FOSSIL)
-
Mactromeris tejonensis
A. Packard, 1916 † (FOSSIL)
-
Zenatia tepikiensis
A.G. Beu, 1966 † (FOSSIL)
-
Mactra thaanumi
W.H. Dall, P. Bartsch & H.A. Rehder, 1938
-
Tumbeziconcha thracioides
(A. Adams & L.A. Reeve, 1850)
-
Spisula tigilensis
(L. Krishtofovich, 1947 †) (FOSSIL)
-
Oxyperas transversa
(L.A. Reeve, 1854)
-
Lutraria trapezoidalis
Powell & J.A. Bartrum, 1929 † (FOSSIL)
-
Mactromeris triangulata
L.S. Zhidkova, 1994 † (FOSSIL)
-
Spisula trigonella
(J.B.P.A. Lamarck, 1818)
-
Mactra tripartita
E. Forbes, 1846
-
Cyclomactra tristis
(L.A. Reeve, 1854)
-
Mactra truncata
Montague, 1808
-
Willimactra (Petromactra) truncata
(W.M. Gabb, 1864 †) (FOSSIL)
-
Mactrinula tryphera
J.C. Melvill, 1899
-
Mactrellona tumbezia
A.A. Olsson, 1921 † (FOSSIL)
-
Mactra tumida
Bohm, 1926 † (FOSSIL)
-
Mactra turgida
J.F. Gmelin, 1791
-
Lutraria turneri
F.P. Jousseaume, 1891
-
Raeta undulata
(A.A. Gould, 1851)
-
Leptomactra valhosierr
(Gardner, 1947 †) (FOSSIL)
-
Mactra (Mactrotoma) velata
(R.A. Philippi, 1849)
-
Lutraria vellai
(A.G. Beu, 1966 †) (FOSSIL)
-
Spisula veneriformis
Clark 1925 † (FOSSIL)
-
Diaphoromactra versicolor
(R. Tate, 1887)
-
Zenatina victoriae
(G.B. Pritchard, 1903)
-
Mactra violacea
J.F. Gmelin, 1791
-
Mactra vitaliana
A.V.M.D. D'Orbigny, 1844 † (FOSSIL)
-
Mactra vitaliana balcica
Marcarovici, 1935 † (FOSSIL)
-
Zenatia waipipiana
A.G. Beu, 1966 † (FOSSIL)
-
Mactra westralis
K.L. Lamprell & T. Whitehead, 1990
-
Cyclomactra williamsi
(J. Marwick, 1948 †) (FOSSIL)
-
Spisula williamsi
(S.S. Berry, 1960)
-
Cymbophora wordeni
Gardner, 1916 † (FOSSIL)
-
Raeta yokohamensis
H.A. Pilsbry, 1895 † (FOSSIL)
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