Boucardicus notabilis (E.A. Smith, 1892)
Platyrhaphe nudus (H.A. Pilsbry & Y. Hirase,1904)
Japonia obliquistriata R.A. Bullen, 1904
Cyclotus ogaitoi H. Minato, 1988
Cipangocharax okamurai M. Azuma, 1980
Chamalycaeus okinawaensis S. Uozumi, A. Yamamoto& T. Habe, 1979
Metalycaeus okuboi Páll-Gergely & Hunyadi,2017
Boucardicus optio E. Fischer-Piette, Ch.P. Blanc, F. Blanc& F. Salvat, 1993
Owensgriffithsius orchidae K.C. Emberton, 2002
Leptopomoides orophilus (W.H. Benson, 1853)
Chamalycaeus otiphorus (W.H. Benson, 1859)
Cyathopoma ovatum (R.H. Beddome, 1875)
Boucardicus pachychilus K.C. Emberton, 1994
Laotia pahiensis E. Saurin, 1953
Cyclotus palawanicus E.A. Smith, 1895
Cyclophorus pallens P.M. Heude, 1885
Theobaldius parapsis (W.H. Benson, 1853)
Pterocyclus parvus (H.J. Pearson, 1833)
Cyathopoma pauliani B. Salvat, 1968
Chamalycaeus pearsoni (W.H. Benson, 1851)
Boucardicus peggyae K.C. Emberton, 2010
Cyanthopoma pembense B. Rowson, 2010
Cyclotus penangensis (F. Stoliczka, 1872)
Mychopoma pennatum W.S.S. Van Benthem-Jutting,1958
Alycaeus perakensis J.C.H. Crosse, 1879
Alycaeus perakensis altispirus O.F. von Möllendorff,1902
Cyclophorus perdix W.J. Broderip& G.B. I Sowerby, 1829
Cyclophorus perdix borneensis (W. Metcalfe, 1851)
Cyclophorus perdix plicifera E.C. Von Martens, 1900
Cyclophorus perdix tuba G.B. Sowerby, 1842
Leptopoma perlucidum (J.P.S. Grateloup, 1840)
Opisthoporus pertusus (P.M.A. Morelet, 1861)
Boucardicus petiti E. Fischer-Piette& J. Bedoucha, 1965
Myxostoma petiverianum Foon, 2016
Myxostoma petiverianum (W. Wood, 1828)