1. Species Perna acutirostris Dunker, 1869 accepted as Isognomon nucleus (Lamarck, 1819) (unaccepted > nomen nudum)
2. Species Perna albisoror Iredale, 1939 accepted as Isognomon albisoror (Iredale, 1939)
3. Species Perna anomioides Reeve, 1858 accepted as Isognomon australicus (Reeve, 1858)
4. Species Perna aquila Clessin, 1890 accepted as Isognomon isognomum (Linnaeus, 1758)
5. Species Perna argillacea A. Gould, 1850 accepted as Isognomon ephippium (Linnaeus, 1758)
6. Species Perna attenuata Reeve, 1858 accepted as Isognomon isognomum (Linnaeus, 1758)
7. Species Perna australica Reeve, 1858 accepted as Isognomon australicus (Reeve, 1858)
8. Species Perna avicularis Lamarck, 1819 accepted as Isognomon isognomum (Linnaeus, 1758)
9. Species Perna bicolor C. B. Adams, 1845 accepted as Isognomon bicolor (C. B. Adams, 1845) (original combination)
10. Species Perna californica Conrad, 1837 accepted as Isognomon californicus (Conrad, 1837) (original combination)
11. Species Perna canina Lamarck, 1819 accepted as Isognomon isognomum (Linnaeus, 1758)
12. Species Perna caudata Reeve, 1858 accepted as Isognomon legumen (Gmelin, 1791)
13. Species Perna chemnitziana A. d'Orbigny, 1853 accepted as Isognomon bicolor (C. B. Adams, 1845) (unaccepted > junior subjective synonym)
14. Species Perna costellata Conrad, 1837 accepted as Isognomon perna (Linnaeus, 1767)
15. Species Perna cumingii Reeve, 1858 accepted as Isognomon ephippium (Linnaeus, 1758)
16. Species Perna dactylus Bory de Saint-Vincent, 1827 accepted as Isognomon legumen (Gmelin, 1791)
17. Species Perna dentifera Krauss, 1848 accepted as Isognomon nucleus (Lamarck, 1819) (junior synonym)
18. Species Perna dunkeri P. Fischer, 1881 accepted as Isognomon dunkeri (P. Fischer, 1881) (original combination)
19. Species Perna ephippium Reeve, 1858 accepted as Isognomon alatus (Gmelin, 1791)
20. Species Perna eremita A. Gould, 1850 accepted as Isognomon perna (Linnaeus, 1767)
21. Species Perna femoralis Lamarck, 1819 accepted as Isognomon isognomum (Linnaeus, 1758)
22. Species Perna fimbriata Reeve, 1858 accepted as Isognomon isognomum (Linnaeus, 1758)
23. Species Perna flava Clessin, 1890 accepted as Isognomon isognomum (Linnaeus, 1758)
24. Species Perna hawaiiensis Pease, 1871 accepted as Isognomon californicum (Conrad, 1837) accepted as Isognomon californicus (Conrad, 1837)
25. Species Perna imbricata Reeve, 1858 accepted as Isognomon ephippium (Linnaeus, 1758)
26. Species Perna incisa Conrad, 1837 accepted as Isognomon incisus (Conrad, 1837) (original combination)
27. Species Perna isognomon (Linnaeus, 1758) accepted as Isognomon isognomum (Linnaeus, 1758) (misspelling)
28. Species Perna isogona Bosc, 1801 accepted as Isognomon isognomum (Linnaeus, 1758)
29. Species Perna lamarckeana A. d'Orbigny, 1853 accepted as Isognomon radiatus (Anton, 1838)
30. Species Perna lamarckiana Clessin, 1890 accepted as Isognomon ephippium (Linnaeus, 1758)
31. Species Perna laticostata Reeve, 1858 accepted as Isognomon legumen (Gmelin, 1791)
32. Species Perna lentiginosa Reeve, 1858 accepted as Isognomon legumen (Gmelin, 1791)
33. Species Perna limoides Reeve, 1858 accepted as Isognomon perna (Linnaeus, 1767)
34. Species Perna linguaeformis Reeve, 1858 accepted as Isognomon legumen (Gmelin, 1791)
35. Species Perna linnaei Dunker, 1869 accepted as Isognomon perna (Linnaeus, 1767) (unaccepted > nomen nudum, attributed to Pfeiffer)
36. Species Perna listeri Hanley, 1843 accepted as Isognomon radiatus (Anton, 1838)
37. Species Perna lobata Reeve, 1858 accepted as Isognomon nucleus (Lamarck, 1819) (junior subjective synonym)
38. Species Perna marsupium Lamarck, 1819 accepted as Isognomon perna (Linnaeus, 1767)
39. Species Perna nana A. Gould, 1850 accepted as Isognomon nucleus (Lamarck, 1819) (junior subjective synonym)
40. Species Perna novohollandiae Clessin, 1890 accepted as Isognomon isognomum (Linnaeus, 1758)
41. Species Perna nucleus Lamarck, 1819 accepted as Isognomon nucleus (Lamarck, 1819) (superseded combination)
42. Species Perna obliqua Lamarck, 1819 accepted as Isognomon alatus (Gmelin, 1791) (unaccepted > junior subjective synonym)
43. Species Perna patibulum Reeve, 1858 accepted as Isognomon isognomum (Linnaeus, 1758)
44. Species Perna pectinata Reeve, 1858 accepted as Isognomon nucleus (Lamarck, 1819) (junior subjective synonym)
45. Species Perna planorbis Dufo, 1840 accepted as Isognomon nucleus (Lamarck, 1819) (junior subjective synonym)
46. Species Perna planulata Clessin, 1890 accepted as Isognomon isognomum (Linnaeus, 1758)
47. Species Perna quadrangularis Reeve, 1858 accepted as Isognomon nucleus (Lamarck, 1819) (junior subjective synonym)
48. Species Perna quadrata Anton, 1837 accepted as Isognomon recognitus (Mabille, 1895) (invalid: junior homonym of Perna quadrata J. de C. Sowerby, 1825)
49. Species Perna radiata Anton, 1838 accepted as Isognomon radiatus (Anton, 1838)
50. Species Perna recognita Mabille, 1895 accepted as Isognomon recognitus (Mabille, 1895) (original combination)
51. Species Perna reeveana Clessin, 1890 accepted as Isognomon ephippium (Linnaeus, 1758)
52. Species Perna rollei Clessin, 1890 accepted as Isognomon isognomum (Linnaeus, 1758)
53. Species Perna rudis Reeve, 1858 accepted as Isognomon isognomum (Linnaeus, 1758)
54. Species Perna rupella Dufo, 1840 accepted as Isognomon nucleus (Lamarck, 1819) (junior subjective synonym)
55. Species Perna samoensis Baird, 1873 accepted as Isognomon perna (Linnaeus, 1767)
56. Species Perna spathulata Reeve, 1858 accepted as Isognomon ephippium (Linnaeus, 1758)
57. Species Perna spengleri Lynge, 1909 accepted as Isognomon legumen (Gmelin, 1791)
58. Species Perna sulcata Lamarck, 1819 accepted as Isognomon perna (Linnaeus, 1767)
59. Species Perna torva A. Gould, 1850 accepted as Isognomon legumen (Gmelin, 1791)
60. Species Perna tranquebarensis Leach, 1815 accepted as Isognomon isognomum (Linnaeus, 1758)
61. Species Perna vespertilio Reeve, 1858 accepted as Isognomon isognomum (Linnaeus, 1758)
62. Species Perna vitrea Reeve, 1858 accepted as Isognomon californicum (Conrad, 1837) accepted as Isognomon californicus (Conrad, 1837)
63. Species Perna vulsella Lamarck, 1819 accepted as Isognomon legumen (Gmelin, 1791)
64. Species Perna vulsella Lamarck, 1819, sensu Reeve, 1858 accepted as Isognomon isognomum (Linnaeus, 1758) (misapplication)
65. Species Perna serratula Reeve, 1858 (uncertain > nomen dubium)

The webpage text is licensed under a Creative Commons Attribution 4.0 License