Retinella olivetorum (J.F. Gmelin, 1791) Italy, Lombardia Region23 mm
Retinella opinata S. Clessin, 1887 Russia
Spelaeopatula orientalis I. Dedov & P. Subai, 2012 Bulgaria
Cellariopsis orientalis (S. Clessin, 1877) Romania, Valea Riului
Schistophallus oscari (M. Kimakowicz, 1883) GR-KRI
Zonites osmanicus F. Riedel, 1987 Turkey
Lyrodiscus osoriensis (T.V. Wollaston, 1878) Canary Islands
Gyralina pageti E. Gittenberger, 1988 Turkey
Omphalina paradensis (L. Pfeiffer, 1860) Mexico, Veracruz
Zonites parnonensis F. Riedel, 1985 Greece
Doraegopis parnonicus F. Riedel, 1982 Greece, Peloponnesus30 mm
Nesovitrea pauxilla (A.A. Gould, 1852) Hawaii
Glyphyalinia pecki L.R. Hubricht, 1966
Glyphyalinia pentadelphia H.A. Pilsbry, 1900 Tennessee
Mesomphix perfragilis A. Wetherby, 1894
Zonites pergranulatus W. Kobelt, 1878 Greece
Mesomphix perlaevis H.A. Pilsbry, 1900 Tennessee22 mm
Hyalinia permodesta E.C. Von Martens, 1892 Costa Rica
Perpolita petronella (L. Pfeiffer, 1853) Col de Tende, France
Paravitrea petrophila (T.B. Bland, 1883) Arkansas
Glyphyalinia picea L.R. Hubricht, 1976
Paravitrea pilsbryana W.F. Clapp, 1919 Tennessee
Mesomphix pilsbryi W.F. Clapp, 1904 Alabama
Zonites piratarum F. Riedel, 1987 Turkey
Omphalina pittieri (P. Bartsch, 1909) Guatemala
Paravitrea placentula (R.J. Shuttleworth, 1852) Tennessee
Paravitrea pontis H.B. Baker, 1931 USA. Virginia
Glyphyalinia praecox H.B. Baker, 1930 Alabama
Aegopinella procellaria (FOSSIL) (Jooss, 1918) †
Retinella pseudoaegopinella F.L. Giusti, A. Boato& M. Bodon, 1986 France, Nice
Aegopinella pura (J. Alder, 1830) France, Haute Provence
Pilsbryna quadrilamellata J. Slapcinsky & J. Coles,2003 Tennessee, Unicoi County
Glyphyalus quillensis De Winter, van Leeuwen& Hovestadt, 2016
Glyphyalinia raderi W.H. Dall, 1898 USA, Maryland
Retinella radiatella O.W.H. Reinhardt, 1877 Ajiro, Ehime, Japan