Tonicella insignis (L.A. Reeve, 1847)
Plaxiphora integra (Is. Taki, 1953)
Placiphorella isaotakii H. Saito, K. Fujikura& E. Tsuchida, 2008
Boreochiton jakovlevae Sirenko, 2016
Plaxiphora javanica P. Kaas & R.A. Van Belle,1994
Plaxiphora kamehamehae A. Ferreira & H.W. Bertsch,1979
Mopalia kennerleyi P.P. Carpenter, 1864
Pterygochiton liasinus (FOSSIL) (Eudes-Deslongchamps,1864 †)
Mopalia lignosa (A.A. Gould, 1846)
Tonicella lineata (Wood, 1815)
Mopalia lionota H.A. Pilsbry, 1918
Mopalia lobium S.S. Berry, 1925
Tonicella lokii K.B. Clark, 1999
Mopalia lowei H.A. Pilsbry, 1918
Tonicella marmorea (Fabrius, 1780)
Nuttallochiton martiali (A. de Rochebrune, 1889)
Fremblya matthewsi T. Iredale, 1910
Fremblya matthewsi tasmanica (E.A. Ashby, 1920)
Plaxiphora mercatoris (E.H.J. Leloup, 1936)
Mopalia middendorffii (L. von Schrenck, 1861)
Placiphorella mirabilis K.B. Clark, 1994
Nuttallochiton mirandus (K.H.J. Thiele, 1906 ex E.A. Smith MS)
Pterygochiton mirificus (FOSSIL) Fucini, 1912 †
Plaxiphora murdochi H.H. Suter, 1905
Mopalia muscosa (A.A. Gould, 1846)
Mopalia muscosa mossy J.E. Gray
Plaxiphora obscurella S.M. Souverbie, 1866
Plaxiphora obtecta P.P. Carpenterin H.A. Pilsbry, 1893
Placiphorella okutanii H. Saito, K. Fujikura& E. Tsuchida, 2008
Amicula orcutti W.H. Dall, 1884
Placiphorella pacifica S.S. Berry, 1919
Plaxiphora paeteliana (K.H.J. Thiele)
Plaxiphora parva H.F. Nierstrasz, 1906
Mopalia phorminx S.S. Berry, 1919
Mopalia plumosa P.P. Carpenterin H.A. Pilsbry, 1893