Cistulops pleurophorum (L. Pfeiffer, 1852)
Chondropoma plicatulum (L. Pfeiffer, 1839)
Opisthosiphon plicatum C. de la Torre & P. Bartsch,1941
Ligatella plurilirata H.C. Fulton, 1903
Chondropoma poeyanum (A.V.M.D. D'Orbigny,1842)
Opisthosiphon poeyi C. de la Torre & P. Bartsch,1941
Georgia poirieri (J.R. Bourguignat, 1882)
Dioscopoma politum E. Neubert, 2009
Kisslingia poloensis P. Bartsch, 1946
Tropidophora polyzonatum (P.M.A. Morelet, 1885)
Chondropoma portuandoi C. de la Torre & P. Bartsch,1938
Omanitopsis praecursor (FOSSIL) (E. Neubert& D. Van Damme, 2012 †)
Chondropoma presasianum J. Gundlach, 1863
Annularisca prestoni (H.F. Ramsden, 1914)
Blaesospira pretei (A.V.M.D. D'Orbigny,1843)
Chondropoma princeps F.G. Thompson
Tropidophora principalis (L. Pfeiffer, 1859)
Cubadamsiella procax (F. Poey, 1851)
Opisthosiphon prominulum C. de la Torre & P. Bartsch,1941
Tropidophora propeconsocia E. Fischer-Piette& J. Bedoucha, 1965
Tropidophora propevitellina E. Fischer-Piette, Ch.P. Blanc, F. Blanc& F. Salvat, 1993
Opisthosiphon protractum C. de la Torre& J. Henderson, 1920
Chondropoma providencialense P. Bartsch, 1946
Annularisca pseudalata (C. de la Torre in H.A. Pilsbry& J. Henderson, 1912)
Chondrothyrella pudica (A.V.M.D. D'Orbigny,1842)
Tropidophora puerilis E. Fischer-Piette& J. Bedoucha, 1965
Weinlandipoma puertoplatensis (L. Pfeiffer)
Subannularia pujalsi (C.G. Aguayo, 1953)
Tropidophora pulchella (G.B. Sowerby, 1843)
Annularia pulchra C.G. Vos, 2005
Adamsiella pulchrior (C.B. Adams, 1845)
Eutudorops pulverulenta (B.H. Wrightin L. Pfeiffer, 1864)
Chondropomium pumilum G.T. Watters & G. Duffy,2010
Licina pupiformis (G.B. Sowerby, 1843)
Opisthosiphon pupoides (P.M.A. Morelet, 1849)