Pitar buenavistana (FOSSIL) F. Hodson, 1927 † Venezuela, Falcón
Pelecyora bullata (G.B. II Sowerby, 1851) Queensland27,5 mm
Mercimonia bunkeri (FOSSIL) (Hanna 1927) †
Dosinia burckhardti (FOSSIL) H.F.A. von Ihering,1907 †
Chione burdigalensis (FOSSIL) (C. Mayer, 1858 †) France, Aquitaine68 mm
Leukoma burmeisteri (FOSSIL) (Borchert 1901) †
Chione burnsii (FOSSIL) W.H. Dall, 1900 † Florida28 mm
Chione burnsii discreta (FOSSIL) Gardner, 1926 † Florida23 mm
Egelicalva byblidis (FOSSIL) Saul & Popenoe 1992 †
Tivela byronensis (J.E. Gray, 1838) Panama44,2 mm
Tivela byronensis hindsii S.C.T. Hanley, 1844 Panama West13 mm
Transennella caboblanquensis N.E. Weisbord, 1964 Venezuela, Sucre
Dosinia caelata (L.A. Reeve, 1850) Philippines, Leyte10,9 mm
Dosinia caerulea L.A. Reeve, 1850 Tasmania55,6 mm
Periglypta caesarina (FOSSIL) (W.H. Dall, 1903 †) Florida38 mm
Sunetta cailliaudi (FOSSIL) Dufour, 1881 † France, Brittany25 mm
Petricola caimitica (FOSSIL) C.J. Maury, 1917 † Dominican Republic5 mm
Marama cainozoica (FOSSIL) (Tenison Woods 1877 †) Australia, Victoria
Pitar calcanea (FOSSIL) W.H. Dall, 1903 † USA, Mississippi12 mm
Agriopoma calceola (FOSSIL) Gardner, 1936 † Florida
Lioconcha caledonensis M.E. Harte& K.L. Lamprell, 1999
Pitar californiana (FOSSIL) (T.A. Conrad, 1835 †) USA, Washington63 mm
Gouldia californica W.H. Dall, 1917 Ecuador21 mm
Chione californiensis (W.J. Broderip, 1835) Mexico, Baja California34,1 mm
Petricola californiensis H.A. Pilsbry & H.N. Lowe,1932 California30 mm
Lamelliconcha callicomata (W.H. Dall, 1902) Japan38,8 mm
Globivenus callimorpha (W.H. Dall, 1902) Panama East42,7 mm
Circenita callipyga (I. von Born, 1778) Oman, Muscat37,5 mm
Gafrarium callipygum (I. von Born, 1778) Red Sea
Anomalocardia callistoides (FOSSIL) H.A. Pilsbry& A.A. Olsson, 1941 † Ecuador, Manabi, Sucre
Amiantis callosa (T.A. Conrad, 1837) California80 mm
Anomalocardia caloosana (FOSSIL) (W.H. Dall, 1900 †) Florida37 mm
Petricola calvertensis (FOSSIL) W.H. Dall, 1900 † Maryland, Calvert County
Pitar calvimontana (FOSSIL) G.P. Deshayes, 1857 †
Mercenaria campechiensis (J.F. Gmelin, 1791) USA, Texas62,8 mm