Trochita paucicostata (FOSSIL) B.M. Landau, F. Da Silva& S.M. Heitz, 2016 † Venezuela
Crucibulum pectinatum P.P. Carpenter, 1856 Peru, Tumbes15 mm
Calyptraea pellucida (L.A. Reeve, 1859) Sri Lanka8,2 mm
Sigapatella perampla (FOSSIL) (Powell& J.A. Bartrum, 1929 †)
Crepidula perforans (A. Valenciennes, 1846) Washington, Puget Sound
Crucibulum personatum A.M. Keen, 1958 Panama20 mm
Crepipatella peruviana (J.B.P.A. Lamarck, 1822) Chile, Coquimbo
Crepidula philippiana V.A. Gallardo, 1977 South Chile
Crucibulum pileolum (FOSSIL) Lea, 1843 † Dominican Republic
Trochita pileolus d'Orbigny, 1841 Uruguay20,1 mm
Trochita pileus (J.B.P.A. Lamarck, 1822) Magellan Strait20 mm
Crucibulum piliferum (FOSSIL) R.J.L. Guppy, 1867 † Trinidad and Tobago
Calyptraea placuna (FOSSIL) R. Tate, 1893 †
Crepidula plana T. Say, 1822 USA, Texas36,3 mm
Crucibulum planum (FOSSIL) H.C.F. Schumacher, 1817 † Mexico, Yucatan
Crepidula porcellana J.B.P.A. Lamarck, 1801 Guinea Bissau27 mm
Crepidula porcellana sulin (P. Dautzenberg, 1912) Mauritania27 mm
Crepidula praerupta (FOSSIL) T.A. Conrad, 1849 † Oregon, Coos bay, Astoria formation
Crepidula pretrei (A.V.M.D. D'Orbigny,1841) Uruguay
Crepidula princeps (FOSSIL) T.A. Conrad, 1855 † USA, California63 mm
Bostrycapulus pritzkeri R. Collin, 2005 Australia, Botany Bay25 mm
Maoricrypta profunda (FOSSIL) (F.W. Hutton, 1873 †) Senegal, Dakar
Crepidula protea d'Orbigny, 1941 Uruguay34,4 mm
Calyptraea pseudodeformis (FOSSIL) Baldi, 1966 † Hungary, Bükk9 mm
Crepidula pyguaia L.R.L. Simone, 2006 Brazil, Bahia
Crucibulum quiriquinae (R.P. Lesson, 1830) Ecuador22 mm
Maoricrypta radiata (FOSSIL) (F.W. Hutton, 1873 †) New Zealand, North Island75 mm
Crucibulum ramosum (FOSSIL) (T.A. Conrad, 1842 †) Florida55 mm
Calyptraea ramsisi (FOSSIL) Abbass, 1967 † Egypt, Fayium
Crepidula recurvirostra (FOSSIL) T.A. Conrad, 1870 † Florida37 mm
Bicatillus renovata (FOSSIL) J.C.H. Crosse& Fischer, 1923 † Indonesia, Java
Crepidula roseae (FOSSIL) E.J. Petuch, 1991 † Florida57 mm
Crepidula rostrata C.B. Adams, 1852 Ecuador30 mm
Calyptraea rugosa (FOSSIL) Noetling, 1895 † Bangladesh
Crepidula rugosa H.E. Anton, 1838 Mexico, Sonora