1. Subgenus Cypricardia (Modiolarca) J. E. Gray, 1842 accepted as Modiolarca J. E. Gray, 1842 accepted as Musculus (Modiolarca) J. E. Gray, 1842 represented as Musculus Röding, 1798 (unaccepted > superseded rank)
   1. Species Cypricardia (Modiolarca) tenuis Boettger, 1875 † accepted as Trapezium tenue (Boettger, 1875) † (superseded combination)
2. Species Cypricardia angulata Lamarck, 1819 accepted as Trapezium bicarinatum (Schumacher, 1817)
3. Species Cypricardia angulata Lamarck, 1819, sensu G. B. Sowerby I, 1839 accepted as Trapezium oblongum (Linnaeus, 1758) (misapplication)
4. Species Cypricardia arata Conrad, 1832 † accepted as Carditamera arata (Conrad, 1832) † (unaccepted > superseded combination)
5. Species Cypricardia caillati Deshayes, 1858 † accepted as Straelenotrapezium caillati (Deshayes, 1858) † (unaccepted > superseded combination)
6. Species Cypricardia californica Conrad, 1837 accepted as Trapezium oblongum (Linnaeus, 1758)
7. Species Cypricardia carinata Deshayes, 1829 † accepted as Miocardiopsis carinata (Deshayes, 1829) † (unaccepted > superseded combination)
8. Species Cypricardia carteri d'Archiac & Haime, 1854 † accepted as Trapezium carteri (d'Archiac & Haime, 1854) † (superseded combination)
9. Species Cypricardia corrugata Mighels, 1844 accepted as Trapezium bicarinatum (Schumacher, 1817)
10. Species Cypricardia cymbaeformis J. De C. Sowerby, 1839 † accepted as Goniophora cymbaeformis (J. De C. Sowerby, 1839) † (unaccepted > superseded combination)
11. Species Cypricardia decussata Reeve, 1843 accepted as Coralliophaga decussata (Reeve, 1843)
12. Species Cypricardia dilatata Deshayes, 1858 † accepted as Gaimardia dilatata (Deshayes, 1858) † (unaccepted > superseded combination)
13. Species Cypricardia dolosa Deshayes, 1863 accepted as Trapezium bicarinatum (Schumacher, 1817)
14. Species Cypricardia duperreyi Deshayes, 1839 accepted as Trapezium oblongum (Linnaeus, 1758)
15. Species Cypricardia edentula Deshayes, 1858 † accepted as Anisodonta edentula (Deshayes, 1858) † (unaccepted > superseded combination)
16. Species Cypricardia faba d'Archiac & Haime, 1854 † accepted as Trapezium faba (d'Archiac & Haime, 1854) † (superseded combination)
17. Species Cypricardia gilva E. von Martens, 1872 accepted as Trapezium gilvum (E. von Martens, 1872) (unaccepted > superseded combination)
18. Species Cypricardia goldfussiana Kuhn, 1935 † accepted as Paracuspidaria goldfussiana (Kuhn, 1935) † (unaccepted > superseded combination)
19. Species Cypricardia guinaica Lamarck, 1819 accepted as Trapezium oblongum (Linnaeus, 1758)
20. Species Cypricardia hornbeckiana A. d'Orbigny, 1853 accepted as Coralliophaga coralliophaga (Gmelin, 1791)
21. Species Cypricardia incarnata Reeve, 1843 accepted as Coralliophaga decussata (Reeve, 1843)
22. Species Cypricardia incrustans Rousseau, 1854 accepted as Coralliophaga decussata (Reeve, 1843) (unaccepted > junior subjective synonym)
23. Species Cypricardia isocardioides Deshayes, 1858 † accepted as Miocardiopsis isocardioides (Deshayes, 1858) † (unaccepted > superseded combination)
24. Species Cypricardia laminata Reeve, 1843 accepted as Coralliophaga coralliophaga (Gmelin, 1791)
25. Species Cypricardia lirata Reeve, 1843 accepted as Neotrapezium liratum (Reeve, 1843) (original combination)
26. Species Cypricardia modesta Deshayes, 1863 accepted as Trapezium oblongum (Linnaeus, 1758)
27. Species Cypricardia nodulosa Mighels, 1844 accepted as Cardites floridanus (Conrad, 1838)
28. Species Cypricardia noemi de Folin, 1867 accepted as Petricola linguafelis (P. P. Carpenter, 1857)
29. Species Cypricardia obesa Reeve, 1843 accepted as Glossocardia obesa (Reeve, 1843) (original combination)
30. Species Cypricardia oblonga (Linnaeus, 1758) sensu G. B. Sowerby I, 1823 accepted as Trapezium gilvum (E. von Martens, 1872) (mis application)
31. Species Cypricardia parisiensis Deshayes, 1857 † accepted as Straelenotrapezium parisiensis (Deshayes, 1857) † (unaccepted > superseded combination)
32. Species Cypricardia pulchra Deshayes, 1858 † accepted as Coralliophaga pulchra (Deshayes, 1858) † (unaccepted > superseded combination)
33. Species Cypricardia rablensis Gredler, 1863 † accepted as Trigonodus rablensis (Gredler, 1863) † (unaccepted > superseded combination)
34. Species Cypricardia renieri Nardo, 1847 accepted as Coralliophaga lithophagella (Lamarck, 1819)
35. Species Cypricardia rosea A. Gould, 1850 accepted as Coralliophaga coralliophaga (Gmelin, 1791) (junior synonym)
36. Species Cypricardia rostrata Lamarck, 1819 accepted as Trapezium bicarinatum (Schumacher, 1817)
37. Species Cypricardia serrata Reeve, 1843 accepted as Irus crenatus (Lamarck, 1818)
38. Species Cypricardia solenoides Reeve, 1843 accepted as Neotrapezium sublaevigatum (Lamarck, 1819)
39. Species Cypricardia sowerbyi Hidalgo, 1903 accepted as Trapezium gilvum (E. von Martens, 1872)
40. Species Cypricardia spathulata Souverbie & Montrouzier, 1862 accepted as Coralliophaga coralliophaga (Gmelin, 1791)
41. Species Cypricardia squamosa Keeping, 1883 † accepted as Trapezicardita squamosa (Keeping, 1883) †
42. Species Cypricardia sulcosa O. Boettger, 1875 † accepted as Trapezium sulcosum (O. Boettger, 1875) †
43. Species Cypricardia tenuis Rousseau, 1854 accepted as Coralliophaga decussata (Reeve, 1843) (unaccepted > junior subjective synonym)
44. Species Cypricardia transilvanica Hörnes, 1870 † accepted as Coralliophaga transilvanica (Hörnes, 1870) † (unaccepted > superseded combination)
45. Species Cypricardia vellicata Reeve, 1843 accepted as Neotrapezium sublaevigatum (Lamarck, 1819)
46. Species Cypricardia vertumnalium Melvill, 1918 accepted as Irus vertumnalium (Melvill, 1918) (unaccepted > superseded combination)
47. Species Cypricardia vicaryi d'Archiac & Haime, 1854 † accepted as Trapezium vicaryi (d'Archiac & Haime, 1854) † (superseded combination)
48. Species Cypricardia walteri Kuhn, 1935 † accepted as Paracuspidaria walteri (Kuhn, 1935) † (unaccepted > superseded combination)
49. Species Cypricardia wheeleri Swallow, 1863 † accepted as Schizodus wheeleri (Swallow, 1863) † (unaccepted > superseded combination)
50. Species Cypricardia bicarinata Keyserling, 1846 † (uncertain > taxon inquirendum)
51. Species Cypricardia majuscula O. Boettger, 1880 † (uncertain > unassessed)
52. Species Cypricardia niveniana Tate, 1867 † (uncertain > unassessed)
53. Species Cypricardia praelonga Terquem & Piette, 1865 † (uncertain > unassessed)

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