Calliostoma oregon W.J. Clench & H. Turner,1960
Calliostoma orion W.H. Dall, 1889
Calliostoma ornata (J.B.P.A. Lamarck, 1822)
Calliostoma osbornei (A.W.B. Powell, 1926)
Calliostoma oshikatai T.C. Lan, 1997
Calliostoma otukai N. Ikebe, 1942
Calliostoma palmeri W.H. Dall, 1871
Fautor paradigmatum B.A. Marshall, 1995
Calliostoma parvajuba C. Vilvens, 2014
Falsimargarita parvispira (FOSSIL) Quilty & al., 2016 †
Calliostoma pascaleae (FOSSIL) B.M. Landau & F. Da Silva,2010 †
Calliostoma paucicostatum S. Kosuge, 1984
Calliostoma pellucidum (A. Valenciennes, 1846)
Calliostoma penniketi (B.A. Marshall, 1995)
Calliostoma peralveatum (FOSSIL) T.A. Conrad, 1841 †
Calliostoma peregrinum (B.A. Marshall, 1995)
Calliostoma perfragile G.B. III Sowerby, 1903
Fautor periglyptus (B.A. Marshall, 1995)
Calliostoma permagnum (FOSSIL) W.H. Dall, 1892 †
Calliostoma pertinax B.A. Marshall, 1995
Calliostoma peyreirense (FOSSIL) A.E.M. Cossmann& M.A. Peyrot, 1916 †
Calliostoma philanthropus (FOSSIL) (T.A. Conrad, 1834 †)
Calliostoma philippei G.T. Poppe, 2004
Selastele pictum B.A. Marshall, 1995
Calliostoma picturatum (A. Adams, 1853)
Thysanodonta pileum C. Vilvens & P. Maestrati,2006
Calliostoma pillsburyae A.A. Olsson, 1971
Calliostoma pirabicum (FOSSIL) C.J. Maury, 1924 †
Calliostoma platinum W.H. Dall, 1890
Calliostoma plicomphalus (FOSSIL) R.J.L. Guppy, 1867 †
Calliostoma polysarkon C. Vilvens, 2014
Calliostoma poppei C. Vilvens, 2000
Margarella porcellana A.W.B. Powell, 1951
Calliostoma potiguar A.C.G. Prado, 1999
Calliostoma problematicum J.T. Kuroda & T. Habe,1971