Indocrassatella oblongata (M. Yokoyama, 1920) Philippines, Cagayan
Indocrassatella oblongata uchidana (FOSSIL) (M. Yokoyama, 1926 †) Japan, Shizuoka
Crassatella ogormani (FOSSIL) A.E.M. Cossmann † France, Aquitaine29 mm
Chattina omanensis (E.A. Smith, 1906) Philippines, Aliguay Island16,6 mm
Crassatina ornata (J.E. Gray in E. Griffith& E. Pidgeon, 1833) Gabon, Sao Tomé Island13,4 mm
Nipponocrassatella osawanoensis (FOSSIL) (Tsuda 1959) †
Crassatella oversa (FOSSIL) Wood † Ukraine30 mm
Crassinella pacifica (C.B. Adams, 1852) Costa Rica6 mm
Crassinella pacifica mexicana H.A. Pilsbry & H.N. Lowe,1932 Ecuador5 mm
Crassatina paeteli (H. von Maltzan, 1885) West Sahara14 mm
Crassatella pallida A. Adams & L.A. Reeve,1850
Crassatella paramesus (FOSSIL) W.H. Dall, 1916 † USA, Georgia, Decatur
Crassatella parisiensis (FOSSIL) A.V.M.D. D'Orbigny,1850 † France, Paris Basin31 mm
Crassatella patagonica (FOSSIL) H.F.A. von Ihering,1907 † Argentina, Monte Leon
Crassatina pauxillus (FOSSIL) (M. Yokoyama, 1925 †) Japan, Chichibu
Crassatella pedroi (FOSSIL) DeVries, 2016 † Peru, Ica, Pisco
Chattonia penjica (FOSSIL) V.N. Sinelnikova, 1997 † Western Kamchatka
Scambula perplana (FOSSIL) T.A. Conrad, 1869 † USA, Alabama, Montgomery
Cypricardella petschorica (FOSSIL) Guskov, 1984 † Russia, Komi, Inta gorsovet
Hybolophus picaderus (FOSSIL) (A.A. Olsson, 1964 †) Ecuador
Chattina picta (A. Adams & L.A. Reeve,1850) Philippines, Aliguay Island21,5 mm
Indocrassatella pilula (K.H. Barnard, 1964) South Africa, Coffee Bay
Crassatella pizarroi (FOSSIL) G.D. Hanna & Israelsky,1925 † Peru, Payta
Crassatella plumbea (FOSSIL) (J.H. Chemnitz, 1824 †) Italy, Veneto50 mm
Crassatella ponderosa (FOSSIL) (J.F. Gmelin, 1791 †) France, Brittany94 mm
Tilicrassatella ponderosa (FOSSIL) (R.A. Philippi, 1887 †) Chile, Navidad
Spissatella poroleda (FOSSIL) Finlay, 1926 †
Crassatella portelli (FOSSIL) DeVries, 2016 † Florida, Polk County
Bathytormus praecuratus (FOSSIL) (A.E.M. Cossmann, 1892 †) France, Paris Basin5 mm
Salaputium probleemum (J.C. Verco, 1907)
Salaputium productum (J.C. Verco, 1895) South Australia
Bathytormus protextus (FOSSIL) (T.A. Conrad, 1832 †) United States, Alabama, Clarke
Crassatella pseudolamellosa (FOSSIL) Berezovsky, 2017 † Ukraine
Bathytormus pteropsis (FOSSIL) (T.A. Conrad, 1860 †) USA, Alabama, Montgomery
Crassatina puellula (FOSSIL) (Mayer-Eymar 1898) †