Cuspidaria parva A.E. Verrill & K.J. Bush,1898
Cuspidaria patagonica (E.A. Smith, 1885)
Myonera paucistriata W.H. Dall, 1886
Cardiomya pavascotti (FOSSIL) C.J.S. Hickman, 2014 †
Cardiomya pectinata (Carpenter, 1865)
Cuspidaria pellucida (W. Stimpson, 1853)
Cardiomya penjica (FOSSIL) V.N. Sinelnikova, 1997 †
Pseudoneaera periplomoides K. Sakurai& T. Habe in T. Habe, 1961
Cardiomya perrostrata (W.H. Dall, 1881)
Cuspidaria persulcata (FOSSIL) (Stanton, 1895 †)
Luzonia philippinensis (R.B. Hinds, 1843)
Cardiomya pinna (J.C. Verco, 1908)
Cardiomya planetica (W.H. Dall, 1908)
Cuspidaria platensis (E.A. Smith, 1885)
Octoporia podobeda E.M. Krylova, 1994
Cuspidaria potti R. Sturany, 1901
Octoporia poutiera J.A. Allen, 2011
Cuspidaria precuspidata (FOSSIL) Gillet & W. Theobald,1936 †
Myonera pretiosa A.E. Verrill & K.J. Bush,1898
Cuspidaria prolatissima J. Poutiers, 1981
Plectodon pruinosus B.A. Marshall, 2002
Bathyneaera quadrostrata (J. Poutiers, 1984)
Cuspidaria raincourti (FOSSIL) A.E.M. Cossmann, 1886 †
Austroneaera raoulensis A.W.B. Powell, 1958
Rhinoclama raoulensis A.W.B. Powell, 1958
Cardiomya rectimarginata R.K. Dell, 1962
Plectodon regalis B.A. Marshall, 2002
Cardiomya reticulata (J.T. Kuroda, 1948)
Cuspidaria rosea (R.B. Hinds, 1843)
Myonera rostra J. Poutiers & F.R. Bernard,1995
Cuspidaria rostrata (L. Spengler, 1793)
Rhinoclama rugata (C.B. Adams, 1864)
Octoporia rugosa E.M. Krylova, 1994
Cardiomya saba J. Knudsen, 1982
Cuspidaria sadoensis T.A. Okutani & K. Itô,1983