Viviparus marnyanus (FOSSIL) V.V. Bogachev, 1961 †
Viviparus martanus (FOSSIL) D. Esu & O. Girotti,2016 †
Filopaludina martensi (G.R. von Frauenfeld,1865)
Filopaludina martensi cambodjensis (J.F. Mabille& G. Le Mesle, 1866)
Kosovia matejici (FOSSIL) (P.S. Pavlovic, 1931 †)
Viviparus mazuranici (FOSSIL) Š. Brusina, 1902 †
Viviparus mearnsi (P. Bartsch, 1907)
Viviparus megarensis (FOSSIL) A. Fuchs, 1877 †
Viviparus mehedintzensis (FOSSIL) Lubenescu & Zazuleac,1985 †
Anulotaia mekongensis R.A.M. Brandt, 1970
Margarya melanioides G. Nevill, 1877
Cipangopaludina menglaensis Zhang,H.X. Liu & Wang, 1981
Campeloma meridionale H.A. Pilsbry, 1916
Viviparus metohiensis (FOSSIL) P.S. Pavlovic, 1903 †
Viviparus microchaetophora T.N. Annandale, 1921
Bellamya micron T.N. Annandale, 1921
Campeloma milesi H.C. Lea, 1863
Bellamya mindanensis (P. Bartsch, 1909)
Viviparus miricus (FOSSIL) Popovic, 1971 †
Taia misamisensis P. Bartsch, 1970
Filopaludina miveruensis E.A. Smith
Mekongia miyagii J.T. Kuroda, 1941
Viviparus moldavicus (FOSSIL) W.A. Wenz in Krejci-Graf& W.A. Wenz, 1932 †
Bellamya monardi F. Haas, 1934
Viviparus monasterialis (FOSSIL) C.F. Fontannes, 1887 †
Margarya monodi P. Dautzenberg & H. Fischer,1906
Viviparus monspesulanus (FOSSIL) W.A. Wenz, 1928 †
Mekongia moreleti (G.P. Deshayes, 1874)
Viviparus moskoni (FOSSIL) Lubenescu & Zazuleac,1985 †
Viviparus motasi (FOSSIL) Papaianopol & Macale?,2004 †
Viviparus motruensis (FOSSIL) (Stefanescu, 1896 †)
Viviparus multicostatus (FOSSIL) (Seninski, 1905 †)
Tchangmargarya multilabiata (FOSSIL) L.J. Zhang & S.C. Chen,2015 †
Viviparus murgescui (FOSSIL) Cobalcescu, 1883 †
Viviparus muscelensis (FOSSIL) (Stefanescu, 1897 †)