1. Species Ostrea chilensis Küster, 1844
2. Species Ostrea edulis Linnaeus, 1758
3. Species Ostrea equestris Say, 1834
4. Species Ostrea stentina Payraudeau, 1826
5. Species Ostrea aculeata Gmelin, 1791 accepted as Mimachlamys varia (Linnaeus, 1758) (synonym)
6. Species Ostrea adriatica Lamarck, 1819 accepted as Ostrea edulis Linnaeus, 1758
7. Species Ostrea arata Gmelin, 1791 accepted as Karnekampia sulcata (O. F. Müller, 1776) (synonym)
8. Species Ostrea aupouria Dinamani, 1981 accepted as Ostrea equestris Say, 1834 (junior subjective synonym)
9. Species Ostrea aurantia Gmelin, 1791 accepted as Flexopecten glaber (Linnaeus, 1758) (synonym)
10. Species Ostrea capsa Fischer von Waldheim, 1807 accepted as Ostrea stentina Payraudeau, 1826 (see nomenclature note under Ostrea stentina Payraudeau, 1826)
11. Species Ostrea cinnabrina Born, 1780 accepted as Chlamys islandica (O. F. Müller, 1776) (synonym)
12. Species Ostrea citrina Gmelin, 1791 accepted as Flexopecten glaber (Linnaeus, 1758) (synonym)
13. Species Ostrea clavata Poli, 1795 accepted as Pseudamussium clavatum (Poli, 1795) (unaccepted > superseded combination)
14. Species Ostrea coarctata Born, 1778 accepted as Flexopecten flexuosus (Poli, 1795) (declared nomen oblitum by Cosel et al. (2014))
15. Species Ostrea cochlear Poli, 1795 accepted as Neopycnodonte cochlear (Poli, 1795)
16. Species Ostrea cochlearis Locard, 1886 accepted as Neopycnodonte cochlear (Poli, 1795) (unjustified emendation)
17. Species Ostrea commercialis Iredale & Roughley, 1933 accepted as Saccostrea glomerata (A. Gould, 1850) (junior subjective synonym)
18. Species Ostrea corallina Poli, 1795 accepted as Manupecten pesfelis (Linnaeus, 1758) (synonym)
19. Species Ostrea cristata Born, 1778 sensu Dall & C. T. Simpson, 1901 accepted as Hyotissa mcgintyi (H. W. Harry, 1985) (misapplication)
20. Species Ostrea cristata Born, 1778 sensu Poli, 1795 accepted as Ostrea edulis Linnaeus, 1758 (misapplication)
21. Species Ostrea cuccullata Born, 1778 accepted as Saccostrea cuccullata (Born, 1778)
22. Species Ostrea cucullaris Lamarck, 1819 † accepted as Crassostrea cucullaris (Lamarck, 1819) † (unaccepted > superseded combination)
23. Species Ostrea curvata Risso, 1826 accepted as Ostrea stentina Payraudeau, 1826
24. Species Ostrea cyrnusii Payraudeau, 1826 accepted as Ostrea edulis Linnaeus, 1758
25. Species Ostrea deformis Lamarck, 1819 accepted as Nanostrea pinnicola (Pagenstecher, 1877) (invalid: junior homonym of Ostrea deformis Lamarck, 1806; Nonostrea exigua is a replacement name)
26. Species Ostrea depressa R. A. Philippi, 1836 accepted as Ostrea edulis Linnaeus, 1758 (unaccepted > junior homonym, junior homonym of Ostrea depressa Gmelin, 1791)
27. Species Ostrea dubia Gmelin, 1791 accepted as Aequipecten opercularis (Linnaeus, 1758) (synonym)
28. Species Ostrea elegans Gmelin, 1791 accepted as Aequipecten opercularis (Linnaeus, 1758) (synonym)
29. Species Ostrea elongata Born, 1778 accepted as Manupecten pesfelis (Linnaeus, 1758) (synonym)
30. Species Ostrea excavata J. C. Fabricius, 1779 accepted as Acesta excavata (J. C. Fabricius, 1779) (unaccepted > superseded combination)
31. Species Ostrea flammea Gmelin, 1791 accepted as Mimachlamys varia (Linnaeus, 1758) (synonym)
32. Species Ostrea flexuosa Poli, 1795 accepted as Flexopecten flexuosus (Poli, 1795) (original combination; declared nomen protectum)
33. Species Ostrea fluctiger Jousseaume, 1925 accepted as Nanostrea fluctigera (Jousseaume, 1925) accepted as Nanostrea pinnicola (Pagenstecher, 1877) (unaccepted > superseded combination)
34. Species Ostrea frons (Linnaeus, 1758) accepted as Dendostrea frons (Linnaeus, 1758) (unaccepted > superseded combination)
35. Species Ostrea gigas Thunberg, 1793 accepted as Magallana gigas (Thunberg, 1793) (superseded combination)
36. Species Ostrea glabra Linnaeus, 1758 accepted as Flexopecten glaber (Linnaeus, 1758) (unaccepted > superseded combination)
37. Species Ostrea hians Gmelin, 1791 accepted as Limaria hians (Gmelin, 1791)
38. Species Ostrea hippopus Lamarck, 1819 accepted as Ostrea edulis Linnaeus, 1758
39. Species Ostrea hiranoi F. Baker & Spicer, 1930 accepted as Neopycnodonte cochlear (Poli, 1795)
40. Species Ostrea hyalina Poli, 1795 accepted as Flexopecten hyalinus (Poli, 1795) (original combination)
41. Species Ostrea hybrida Deshayes, 1832 † accepted as Ostrea cucullaris Lamarck, 1819 † accepted as Crassostrea cucullaris (Lamarck, 1819) † (unaccepted > junior subjective synonym, invalid: junior homonym of Ostrea hybrida Gmelin, 1791)
42. Species Ostrea incarnata Gmelin, 1791 accepted as Mimachlamys varia (Linnaeus, 1758) (synonym)
43. Species Ostrea inflexa Poli, 1795 accepted as Pseudamussium clavatum (Poli, 1795) (synonym)
44. Species Ostrea isognomum Linnaeus, 1758 accepted as Isognomon isognomum (Linnaeus, 1758)
45. Species Ostrea jacobaea Linnaeus, 1758 accepted as Pecten jacobaeus (Linnaeus, 1758) (original combination)
46. Species Ostrea lamellosa Brocchi, 1814 accepted as Ostrea edulis Linnaeus, 1758
47. Species Ostrea leonica Fréminville, 1870 accepted as Ostrea edulis Linnaeus, 1758 (unaccepted > junior subjective synonym)
48. Species Ostrea lima Linnaeus, 1758 accepted as Lima lima (Linnaeus, 1758)
49. Species Ostrea lutaria F. W. Hutton, 1873 accepted as Ostrea chilensis Küster, 1844 (junior subjective synonym)
50. Species Ostrea maculata Born, 1778 accepted as Flexopecten glaber (Linnaeus, 1758) (synonym)
51. Species Ostrea maxima Linnaeus, 1758 accepted as Pecten maximus (Linnaeus, 1758) (original combination)
52. Species Ostrea miniata Born, 1778 accepted as Talochlamys pusio (Linnaeus, 1758) (synonym)
53. Species Ostrea multistriata Poli, 1795 accepted as Talochlamys multistriata (Poli, 1795) (original combination)
54. Species Ostrea muricata Gmelin, 1791 accepted as Mimachlamys varia varia (Linnaeus, 1758) (synonym)
55. Species Ostrea mustellina Gmelin, 1791 accepted as Mimachlamys varia varia (Linnaeus, 1758) (synonym)
56. Species Ostrea nebulosa Gmelin, 1791 accepted as Flexopecten glaber (Linnaeus, 1758) (synonym)
57. Species Ostrea nivea Brocchi, 1814 accepted as Limatula nivea (Brocchi, 1814) accepted as Limatula subauriculata (Montagu, 1808)
58. Species Ostrea ochroleuca Gmelin, 1791 accepted as Mimachlamys varia (Linnaeus, 1758)
59. Species Ostrea opercularis Linnaeus, 1758 accepted as Aequipecten opercularis (Linnaeus, 1758) (original combination)
60. Species Ostrea parasitica W. Turton, 1819 accepted as Ostrea edulis Linnaeus, 1758
61. Species Ostrea pauciplicata Deshayes, 1835 accepted as Ostrea stentina Payraudeau, 1826
62. Species Ostrea pesfelis Linnaeus, 1758 accepted as Manupecten pesfelis (Linnaeus, 1758) (original combination)
63. Species Ostrea peslutrae Linnaeus, 1771 accepted as Pseudamussium peslutrae (Linnaeus, 1771) (original combination)
64. Species Ostrea proteus Dillwyn, 1817 accepted as Flexopecten glaber (Linnaeus, 1758) (original combination)
65. Species Ostrea pusio Linnaeus, 1758 accepted as Talochlamys pusio (Linnaeus, 1758) (original combination)
66. Species Ostrea regula Forsskål, 1775 accepted as Malleus regula (Forsskål, 1775) (original combination)
67. Species Ostrea rostrata [sic] sensu Danilo & Sandri, 1856 accepted as Ostrea edulis Linnaeus, 1758 (misidentification and misspelling of Ostrea rostralis Lamarck, 1819)
68. Species Ostrea rustica Gmelin, 1791 accepted as Flexopecten glaber (Linnaeus, 1758) (synonym)
69. Species Ostrea sinuosa Gmelin, 1791 accepted as Talochlamys pusio (Linnaeus, 1758) (synonym)
70. Species Ostrea striatum da Costa, 1778 accepted as Ostrea edulis Linnaeus, 1758
71. Species Ostrea sublamellosa Milaschewitsch, 1916 accepted as Ostrea edulis Linnaeus, 1758
72. Species Ostrea subrufa Gmelin, 1791 accepted as Mimachlamys varia (Linnaeus, 1758) (synonym)
73. Species Ostrea sulcata Born, 1778 accepted as Flexopecten glaber (Linnaeus, 1758)
74. Species Ostrea taurica Krynicki, 1837 accepted as Ostrea edulis Linnaeus, 1758 (unaccepted > nomen nudum)
75. Species Ostrea taurica Siemaschko, 1847 accepted as Ostrea edulis Linnaeus, 1758 (synonym)
76. Species Ostrea tuberculata Olivi, 1792 accepted as Limaria tuberculata (Olivi, 1792) (original combination)
77. Species Ostrea varia Linnaeus, 1758 accepted as Mimachlamys varia (Linnaeus, 1758)
78. Species Ostrea versicolor Gmelin, 1791 accepted as Aequipecten opercularis (Linnaeus, 1758) (synonym)
79. Species Ostrea virginica Gmelin, 1791 accepted as Crassostrea virginica (Gmelin, 1791) (unaccepted > superseded combination)
80. Species Ostrea vitrea Gmelin, 1791 accepted as Delectopecten vitreus (Gmelin, 1791)
81. Species Ostrea vulgare da Costa, 1778 accepted as Ostrea edulis Linnaeus, 1758

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