'' '' According to the
World Register of Marine Species (2025), this family contains 56 genera and is split into the following subfamilies: ===Subfamily
Darininae=== •
Darcinia Clark, 1946 •
Darina J. E. Gray, 1853 ===Subfamily
Lutrariinae=== •
Eastonia J. E. Gray, 1853 •
Heterocardia Deshayes, 1855 •
Lutraria Lamarck, 1799 •
Meropesta Iredale, 1929 •
Standella J. E. Gray, 1853 •
Tresus J. E. Gray, 1853 •
Zenatia J. E. Gray, 1853 •
Zenatina Gill & Darragh, 1963 ===Subfamily
Mactrinae=== •
Allomactra Tomlin, 1931 •
Austromactra Iredale, 1930 •
Barymactra Cossmann, 1909 •
Coelomactra Dall, 1895 •
Crassula Marwick, 1948 •
Cyclomactra Dall, 1895 •
Diaphoromactra Iredale, 1930 •
Harvella J. E. Gray, 1853 •
Huberimactra Cosel & Gofas, 2018 •
Leptospisula Dall, 1895 •
Mactra Linnaeus, 1767 •
Mactrella J. E. Gray, 1853 •
Mactrellona J. G. Marks, 1951 •
Mactrinula J. E. Gray, 1853 •
Mactromeris Conrad, 1868 •
Mactrotoma Dall, 1894 •
Maorimactra H. J. Finlay, 1928 •
Mulinia J. E. Gray, 1837 •
Oxyperas Mörch, 1853 •
Pseudocardium Gabb, 1866 •
Rangia Desmoulins, 1832 •
Sarmatimactra Korobkov, 1954 •
Scalpomactra H. J. Finlay, 1928 •
Scissodesma Gray, 1837 •
Simomactra Dall, 1894 •
Spisula J. E. Gray, 1837 •
Trinitasia Maury, 1928 •
Tumbeziconcha Pilsbry & Olsson, 1935 •
Mactrona Marwick, 1952 •
Petromactra Saul, 1973 ===Subfamily
Resaniinae=== •
Resania J. E. Gray, 1853 ===Subfamily
Tanysiphoninae=== •
Tanysiphon W. H. Benson, 1858 ===
Incertae sedis=== •
Aktschagylia Starobogatov, 1970 •
Aliomactra Stephenson, 1952 •
Andrussella Korobkov, 1954 •
Avimactra Andrusov, 1905 •
Caspimactra A. A. Ali-Zade & Kabakova, 1969 •
Chersonimactra Paramonova, 1978 •
Cryptomactra Andrussow, 1902 •
Cymbophora Gabb, 1869 •
Eopapyrina Woodring, 1982 •
Geltena Stephenson, 1946 •
Ionesimactra Signorelli, 2023 •
Kirghizella Andrusov, 1902 •
Mactrodesma Conrad, 1869 •
Mactrona Marwick, 1952 •
Mulinoides Olsson, 1944 •
Nelltia Stephenson, 1952 •
Nymphactra Stilwell & Zinsmeister, 1992 •
Ovamactra Woodring, 1982 •
Petromactra Saul, 1973 •
Planimactra Ionesi, 1986 •
Podolimactra Ionesi, 1986 •
Praerangia Cossmann, 1908 •
Priscomactra Stephenson, 1952 •
Pseudomactra Steklov, 1960 •
Pteroluter Saul, 1973 •
Stereomactra Stewart, 1930 •
Stiphromactra Böhm, 1929 •
Tenuimactra Garvie, 1996 •
Willimactra Saul, 1973 •
Zenatiopsis Tate, 1880 ==References==