•
Cyclocardia astartoides (Martens, 1878) • †
Cyclocardia awamoensis (Harris, 1897) •
Cyclocardia bailyi (J. Q. Burch, 1944) •
Cyclocardia barbarensis (Stearns, 1890) •
Cyclocardia beebei (Hertlein, 1958) •
Cyclocardia borealis – northern cardita • †
Cyclocardia christiei (Marwick, 1929) •
Cyclocardia compressa (Reeve, 1843) •
Cyclocardia congelascens (Melvill & Standen, 1912) •
Cyclocardia crassidens (Broderip & Sowerby I, 1829) •
Cyclocardia crebricostata (A. Krause, 1885) •
Cyclocardia dalek Pérez & Del Río, 2017 •
Cyclocardia gouldii (Dall, 1903) • †
Cyclocardia granulata (Say, 1824) •
Cyclocardia incisa (Dall, 1903) •
Cyclocardia isaotakii (Tiba, 1972) • †
Cyclocardia magna Quilty, Darragh, Gallagher & Harding, 2016 • †
Cyclocardia marama (P. A. Maxwell, 1969) •
Cyclocardia moniliata (Dall, 1903) • †
Cyclocardia moniligena Hickman, 2015 •
Cyclocardia nipponensis M. Huber, 2010 •
Cyclocardia novangliae (E. S. Morse, 1869) •
Cyclocardia ovata (Riabinina, 1952) • †
Cyclocardia pseutella (Marwick, 1929) •
Cyclocardia ripensis Popov & Scarlato, 1980 •
Cyclocardia rjabininae (Scarlato, 1955) •
Cyclocardia spurca (G.B. Sowerby I, 1833) •
Cyclocardia thouarsii (d'Orbigny, 1842) •
Cyclocardia umnaka (Willett, 1932) •
Cyclocardia velutina (E.A. Smith, 1881) •
Cyclocardia ventricosa (Gould, 1850) ; Extinct species • †
Cyclocardia elegans Lamarck 1806 ==References==