1. Species Plexaura arbuscula Duchassaing, 1850
2. Species Plexaura corticosa Duchassaing & Michelotti, 1860
3. Species Plexaura desiderata Marion, 1906
4. Species Plexaura dubia Kölliker, 1865
5. Species Plexaura edwardsi Moser, 1921
6. Species Plexaura ehrenbergi Kölliker, 1865
7. Species Plexaura esperi Verrill, 1907
8. Species Plexaura flexuosula Kükenthal, 1924
9. Species Plexaura hartmeyeri Moser, 1921
10. Species Plexaura homomalla (Esper, 1794)
11. Species Plexaura kuekenthali Moser, 1921
12. Species Plexaura kuna Lasker, Kim & Coffroth, 1996
13. Species Plexaura michelini Stiasny, 1937
14. Species Plexaura miniacea Ehrenberg, 1834
15. Species Plexaura nina Bayer & Deichmann, 1958
16. Species Plexaura porosa (Esper, 1794)
17. Species Plexaura turgida Ehrenberg, 1834
18. Species Plexaura valenciennesi Wright & Studer, 1889
19. Species Plexaura aggregata Nutting, 1910 accepted as Rumphella aggregata (Nutting, 1910) (original combination)
20. Species Plexaura antipathes (Linnaeus, 1758) accepted as Rumphella antipathes (Linnaeus, 1758) (unaccepted > superseded combination)
21. Species Plexaura arbuscula Philippi, 1866 accepted as Leptogorgia arbuscula (Philippi, 1866) (unaccepted > superseded combination, original combination)
22. Species Plexaura arbusculum Duchassaing, 1850 accepted as Plexaura arbuscula Duchassaing, 1850 (unaccepted > incorrect grammatical agreement of specific epithet)
23. Species Plexaura atra (Verrill, 1901) accepted as Eunicea tourneforti f. atra Verrill, 1901 (unaccepted > junior subjective synonym)
24. Species Plexaura attenuata Nutting, 1910 accepted as Euplexaura attenuata (Nutting, 1910) (unaccepted > superseded combination, original combination)
25. Species Plexaura aurantiaca Valenciennes, 1855 accepted as Echinogorgia aurantiaca (Valenciennes, 1855) (unaccepted > superseded combination, original combination)
26. Species Plexaura boryana Valenciennes, 1855 (unaccepted > nomen nudum)
27. Species Plexaura brevis Duchassaing, 1850 accepted as Plexaurella grisea Kunze, 1916 (unaccepted > junior subjective synonym)
28. Species Plexaura capoblancoi Stiasny, 1936 accepted as Muriceopsis tuberculata (Esper, 1792) (unaccepted > junior subjective synonym)
29. Species Plexaura cauliculus Valenciennes, 1855 accepted as Leptogorgia cauliculus Milne Edwards & Haime, 1857 accepted as Leptogorgia viminalis (Pallas, 1766) (unaccepted > nomen nudum)
30. Species Plexaura citrina (Lamarck, 1815) accepted as Muriceopsis sulphurea (Donovan, 1825) (unaccepted > junior subjective synonym)
31. Species Plexaura crassa (Ellis & Solander, 1786) accepted as Pseudoplexaura flagellosa (Houttuyn, 1772) (unaccepted > junior subjective synonym)
32. Species Plexaura crassa Verrill, 1864 accepted as Plexaura crassa (Ellis & Solander, 1786) accepted as Pseudoplexaura flagellosa (Houttuyn, 1772) (unaccepted > junior subjective synonym, incorrect authority)
33. Species Plexaura dichotoma (Esper, 1791) accepted as Plexaurella dichotoma (Esper, 1788) (unaccepted > superseded combination)
34. Species Plexaura eburnea Valenciennes, 1855 (unaccepted > nomen nudum)
35. Species Plexaura flabellum (Pallas, 1766) accepted as Echinogorgia flabellum (Pallas, 1766) (unaccepted > superseded combination)
36. Species Plexaura flava Nutting, 1910 accepted as Pinnigorgia flava (Nutting, 1910) (unaccepted > superseded combination, original combination)
37. Species Plexaura flavida (Lamarck, 1815) accepted as Muriceopsis flavida (Lamarck, 1815) (unaccepted > superseded combination)
38. Species Plexaura flexosa Lamouroux, 1821 accepted as Plexaura flexuosa Lamouroux, 1821 accepted as Eunicea flexuosa (Lamouroux, 1821) (unaccepted > misspelling)
39. Species Plexaura flexuosa Lamouroux, 1821 accepted as Eunicea flexuosa (Lamouroux, 1821) (original combination)
40. Species Plexaura friabilis Milne Edwards & Haime, 1957 accepted as Plexaurella friabilis (Milne Edwards & Haime, 1857) accepted as Plexaurella nutans (Duchassaing & Michelotti, 1860) (unaccepted > superseded combination, original combination)
41. Species Plexaura fucosa (Valenciennes, 1846) accepted as Psammogorgia fucosa (Valenciennes, 1846) (unaccepted > superseded combination)
42. Species Plexaura fusca (Duchassaing & Michelotti, 1860) accepted as Eunicea fusca Duchassaing & Michelotti, 1860 (unaccepted > superseded combination)
43. Species Plexaura grandis (Verrill, 1900) accepted as Eunicea calyculata (Ellis & Solander, 1786) (unaccepted > junior subjective synonym)
44. Species Plexaura heteropora (Lamarck, 1815) accepted as Plexaurella grisea Kunze, 1916 (unaccepted > junior subjective synonym)
45. Species Plexaura indica Ridley, 1887 accepted as Menella indiensis Ramvilas, Alderslade & Ranjeet, 2023 (unaccepted > junior homonym, of Menella indica Gray, 1870)
46. Species Plexaura laevigata Moser, 1921 accepted as Pseudoplexaura flagellosa (Houttuyn, 1772) (unaccepted > junior subjective synonym, uncertain synonym)
47. Species Plexaura laxa (Lamarck, 1815) accepted as Pterogorgia laxa (Lamarck, 1815) (unaccepted > superseded combination)
48. Species Plexaura macrocythara Lamouroux, 1816 accepted as Plexaura homomalla (Esper, 1794) (unaccepted > junior subjective synonym)
49. Species Plexaura michelini Stiasny, 1941 accepted as Plexaura michelini Stiasny, 1937 (incorrect authority date)
50. Species Plexaura multicauda (Lamarck, 1815) accepted as Eunicea calyculata (Ellis & Solander, 1786) (unaccepted > junior subjective synonym)
51. Species Plexaura mutica Duchassaing & Michelotti, 1860 accepted as Eunicea calyculata (Ellis & Solander, 1786) (unaccepted > junior subjective synonym)
52. Species Plexaura nodulifera (Lamarck, 1815) accepted as Gorgonia nodulifera Lamarck, 1815 (changed combination)
53. Species Plexaura olivacea Lamouroux, 1816 accepted as Gorgonia olivacea (Lamouroux, 1816) (unaccepted > superseded combination, original combination)
54. Species Plexaura petechizans (Pallas, 1766) accepted as Leptogorgia petechizans (Pallas, 1766) (changed combination)
55. Species Plexaura pinnata Nutting, 1910 accepted as Euplexaura nuttingi Kükenthal, 1919 (unaccepted > junior homonym, of Euplexaura pinnata Wright & Studer, 1889)
56. Species Plexaura platyclados Philippi, 1866 accepted as Phycogorgia fucata (Valenciennes, 1846) (unaccepted > junior subjective synonym)
57. Species Plexaura platystoma Nutting, 1910 accepted as Pinnigorgia platystoma (Nutting, 1910) (unaccepted > superseded combination, original combination)
58. Species Plexaura praelonga Ridley, 1884 accepted as Menella praelonga (Ridley, 1884) (unaccepted > superseded combination, original combination)
59. Species Plexaura racemosa Valenciennes, 1855 (unaccepted > nomen nudum)
60. Species Plexaura racemosa Milne Edwards & Haime, 1857 accepted as Eunicella racemosa (Milne Edwards & Haime, 1857) (unaccepted > superseded combination, original combination)
61. Species Plexaura ramosa Moser, 1921 accepted as Pseudoplexaura porosa (Houttuyn, 1772) (unaccepted > junior subjective synonym, uncertain synonym)
62. Species Plexaura recta Nutting, 1910 accepted as Euplexaura recta (Nutting, 1910) (unaccepted > superseded combination, original combination)
63. Species Plexaura reticulata Ehrenberg, 1834 accepted as Leptogorgia peruana Verrill, 1868 accepted as Leptogorgia peruviana (Verrill, 1868) (unaccepted > junior subjective synonym)
64. Species Plexaura rhipsalis Valenciennes, 1855 accepted as Plexaura ramulosa (Ehrenberg, 1834) (synonym)
65. Species Plexaura rosea Philippi, 1866 accepted as Leptogorgia chilensis Verrill, 1868 (junior secondary homonym of Leptogorgia rosea E & H)
66. Species Plexaura salicornoides Milne Edwards & Haime, 1857 accepted as Eunicea flexuosa (Lamouroux, 1821) (synonym)
67. Species Plexaura sanguinea (Lamarck, 1815) accepted as Leptogorgia sanguinea (Lamarck, 1815) (unaccepted > superseded combination)
68. Species Plexaura suberosa (Ellis & Solander, 1786) accepted as Titanideum frauenfeldii (Kölliker, 1865) (synonym)
69. Species Plexaura suffruticosa (Dana, 1846) accepted as Rumphella suffruticosa (Dana, 1846) (changed combination)
70. Species Plexaura teres (Kunze, 1916) accepted as Plexaurella teres Kunze, 1916 (unaccepted > superseded combination)
71. Species Plexaura torta Klunzinger, 1877 accepted as Rumphella torta (Klunzinger, 1877) (unaccepted > superseded combination, original combination)
72. Species Plexaura vermiculata (Lamarck, 1815) accepted as Plexaurella vermiculata (Lamarck, 1815) (unaccepted > superseded combination)
73. Species Plexaura virgea Valenciennes, 1855 accepted as Leptogorgia virgea (Valenciennes, 1855) (unaccepted > superseded combination, original combination)
74. Species Plexaura virgulata (Lamarck, 1815) accepted as Leptogorgia virgulata (Lamarck, 1815) (unaccepted > superseded combination)
75. Species Plexaura volvata Kunze, 1917 (unaccepted > nomen nudum)
76. Species Plexaura wagenaari Stiasny, 1941 accepted as Pseudoplexaura wagenaari (Stiasny, 1941) (original combination)
77. Species Plexaura webbiana Valenciennes, 1855 accepted as Leptogorgia webbiana Milne Edwards & Haime, 1857 accepted as Leptogorgia viminalis (Pallas, 1766) (unaccepted > nomen nudum)
78. Species Plexaura anguiculus (Dana, 1846) (uncertain)
79. Species Plexaura furcata (Ehrenberg, 1834) (uncertain)
80. Species Plexaura orthogonia (W. Koch, 1886) (uncertain > taxon inquirendum)
81. Species Plexaura principalis Bell, 1889 (uncertain)
82. Species Plexaura ramulosa (Ehrenberg, 1834) (uncertain > taxon inquirendum)
83. Species Plexaura sanctithomae Ehrenberg, 1834 (uncertain)
84. Species Plexaura spicifera (Dana, 1846) (uncertain)

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