1. Species Melobesia accola (Foslie) Me.Lemoine, 1924
2. Species Melobesia confervoides Funk, 1955
3. Species Melobesia galapagensis (Foslie) W.R.Taylor, 1945
4. Species Melobesia inaequilaterata Solms-Laubach, 1881
5. Species Melobesia lamourouxii Decaisne, 1842
6. Species Melobesia leptura Foslie, 1906
7. Species Melobesia marginata Setchell & Foslie, 1902
8. Species Melobesia mediocris (Foslie) Setchell & L.R.Mason, 1943
9. Species Melobesia membranacea (Esper) J.V.Lamouroux, 1812
10. Species Melobesia polystromatica E.Y.Dawson, 1960
11. Species Melobesia rosanoffii (Foslie) Lemoine, 1912
12. Species Melobesia rugulosa Setchell & Foslie, 1902
13. Species Melobesia solmsii Bornet ex Lemoine, 1912
14. Species Melobesia tasmanica (Foslie) De Toni, 1924
15. Species Melobesia tenuis Decaisne, 1842
16. Species Melobesia tomitaroi Kloczcova, 1987
17. Species Melobesia triplex Heydrich, 1902
18. Species Melobesia agariciformis Areschoug, 1851 accepted as Lithophyllum dentatum (Kützing) Foslie, 1898
19. Species Melobesia amplexifrons Harvey, 1849 accepted as Pneophyllum amplexifrons (Harvey) Y.M.Chamberlain & R.E.Norris, 1994
20. Species Melobesia antarctica (J.D.Hooker & Harvey) J.D.Hooker & Harvey, 1849 accepted as Carlskottsbergia antarctica (J.D.Hooker & Harvey) Athanasiadis, 2018
21. Species Melobesia bermudensis Foslie, 1901 accepted as Lithoporella bermudensis (Foslie) W.H.Adey, 1970 (synonym)
22. Species Melobesia brassica-florida Harvey, 1849 accepted as Neogoniolithon brassica-florida (Harvey) Setchell & L.R.Mason, 1943
23. Species Melobesia calcarea (Pallas) Harvey, 1849 accepted as Phymatolithon calcareum (Pallas) W.H.Adey & D.L.McKibbin ex Woelkering & L.M.Irvine, 1986
24. Species Melobesia callithamnioides (P.Crouan & H.Crouan) Falkenberg, 1879 accepted as Pneophyllum confervicola (Kützing) Y.M.Chamberlain, 1983
25. Species Melobesia callithamnioides Falkenberg ex Solms-Laubach, 1881 accepted as Hydrolithon boreale (Foslie) Y.M.Chamberlain, 1994 (synonym)
26. Species Melobesia canescens Foslie, 1900 accepted as Titanoderma canescens (Foslie) Woelkerling, Y.M.Chamberlain & P.C.Silva, 1985 accepted as Lithophyllum canescens (Foslie) Foslie, 1905
27. Species Melobesia carpophylli Heydrich, 1893 accepted as Lithophyllum carpophylli (Heydrich) Heydrich, 1897 (synonym)
28. Species Melobesia caspica Foslie, 1899 accepted as Lithophyllum pustulatum (J.V.Lamouroux) Foslie, 1904 accepted as Titanoderma pustulatum (J.V.Lamouroux) Nägeli, 1858
29. Species Melobesia caulerpae Foslie, 1906 accepted as Pneophyllum coronatum (Rosanoff) Penrose, 1994
30. Species Melobesia compressa M'Calla ex Harvey, 1849 accepted as Phymatolithon calcareum (Pallas) W.H.Adey & D.L.McKibbin ex Woelkering & L.M.Irvine, 1986
31. Species Melobesia confervicola (Kützing) Foslie, 1900 accepted as Pneophyllum confervicola (Kützing) Y.M.Chamberlain, 1983
32. Species Melobesia confinis P.Crouan & H.Crouan, 1867 accepted as Titanoderma pustulatum (J.V.Lamouroux) Nägeli, 1858
33. Species Melobesia corallinae P.Crouan & H.Crouan, 1867 accepted as Lithophyllum corallinae (P.Crouan & H.Crouan) Heydrich, 1897
34. Species Melobesia coronata Rosanoff, 1866 accepted as Pneophyllum coronatum (Rosanoff) Penrose, 1994
35. Species Melobesia corticiformis Kützing, 1849 accepted as Melobesia membranacea (Esper) J.V.Lamouroux, 1812
36. Species Melobesia crassa Lloyd, 1860 accepted as Lithophyllum tortuosum f. crassa (Lloyd) Me.Lemoine (synonym)
37. Species Melobesia crassiuscula Kützing, 1843 accepted as Amphithallia crassiuscula (Kützing) Athanasiadis, 2019
38. Species Melobesia cristata (Meneghini) Ardissone, 1883 accepted as Tenarea tortuosa (Esper) Me.Lemoine, 1910
39. Species Melobesia cymodoceae Foslie, 1901 accepted as Hydrolithon cymodoceae (Foslie) Penrose, 1992
40. Species Melobesia cystoseirae Hauck, 1883 accepted as Lithophyllum cystoseirae (Hauck) Heydrich, 1897
41. Species Melobesia darwinii Harvey, 1849 accepted as Lithothamnion darwinii (Harvey) Areschoug, 1852 (synonym)
42. Species Melobesia decipiens Foslie, 1897 accepted as Pseudolithophyllum decipiens (Foslie) Steneck & R.T.Paine, 1986 accepted as Spongites decipiens (Foslie) Y.M. Chamberlain, 1993 accepted as Chamberlainium decipiens (Foslie) Caragnano, Foetisch, Maneveldt & Payri, 2018
43. Species Melobesia decussata Endlicher, 1843 accepted as Lithophyllum decussatum (J.Ellis & Solander) Philippi, 1837
44. Species Melobesia deformans Solms-Laubach, 1881 accepted as Choreonema thuretii (Bornet) F.Schmitz, 1889
45. Species Melobesia dentata (Kützing) Decaisne, 1842 accepted as Lithophyllum dentatum (Kützing) Foslie, 1898
46. Species Melobesia expansa (Philippi) Endlicher, 1843 accepted as Mesophyllum expansum (Philippi) Cabioch & M.L.Mendoza, 2003 (synonym)
47. Species Melobesia explanata (Foslie) Foslie, 1908 accepted as Lithophyllum riosmenae A.S.Harvey & Woelkerling, 2009
48. Species Melobesia farinosa J.V.Lamouroux, 1816 accepted as Hydrolithon farinosum (J.V.Lamouroux) Penrose & Y.M.Chamberlain, 1993
49. Species Melobesia fasciculata (Lamarck) Harvey, 1846 accepted as Lithophyllum fasciculatum (Lamarck) Foslie, 1898
50. Species Melobesia fertilis Me.Lemoine, 1930 accepted as Fosliella fertilis (Me.Lemoine) Segonzac, 1984
51. Species Melobesia flabellata Sonder, 1845 accepted as Metamastophora flabellata (Sonder) Setchell, 1943
52. Species Melobesia foliacea Kützing, 1843 accepted as Mastophora rosea (C.Agardh) Setchell, 1943
53. Species Melobesia fosliei Rosenvige, 1917 accepted as Pneophyllum confervicola (Kützing) Y.M.Chamberlain, 1983
54. Species Melobesia frondosa Dufour, 1861 accepted as Lithophyllum stictiforme (J.E. Areschoug) Hauck, 1877
55. Species Melobesia fruticulosa (Kützing) Decaisne, 1842 accepted as Spongites fruticulosus Kützing, 1841
56. Species Melobesia gibbsii Setchell & Foslie, 1907 accepted as Heteroderma gibbsii (Setchell & Foslie) Foslie, 1909 (synonym)
57. Species Melobesia grandiuscula Montagne, 1846 accepted as Lithophyllum stictiforme (J.E. Areschoug) Hauck, 1877
58. Species Melobesia granulata Meneghini ex Kützing, 1849 accepted as Hydrolithon farinosum (J.V.Lamouroux) Penrose & Y.M.Chamberlain, 1993
59. Species Melobesia hapalidioides P.Crouan & H.Crouan, 1867 accepted as Lithophyllum pustulatum (J.V.Lamouroux) Foslie, 1904 accepted as Titanoderma pustulatum (J.V.Lamouroux) Nägeli, 1858
60. Species Melobesia hildebrantioides (P.Crouan & H.Crouan) Foslie, 1898 accepted as Melobesia membranacea (Esper) J.V.Lamouroux, 1812
61. Species Melobesia indica (Foslie) Jadin, 1935 accepted as Lithoporella indica (Foslie) Adey, 1970
62. Species Melobesia insidiosa (Solms-Laubach) Heydrich, 1897 accepted as Neogoniolithon brassica-florida (Harvey) Setchell & L.R.Mason, 1943
63. Species Melobesia kerguelena Dickie, 1876 accepted as Lithothamnion kerguelenum (Dickie) Foslie, 1898
64. Species Melobesia laminariae P.Crouan & H.Crouan, 1867 accepted as Titanoderma laminariae (P.Crouan & H.Crouan) Y.M.Chamberlain, 1991
65. Species Melobesia lejolisii Rosanoff, 1866 accepted as Pneophyllum fragile Kützing, 1843
66. Species Melobesia lenormandii J.E.Areschoug, 1852 accepted as Phymatolithon lenormandii (J.E.Areschoug) W.H.Adey, 1966
67. Species Melobesia lichenoides (J.Ellis) Harvey, 1849 accepted as Mesophyllum lichenoides (J.Ellis) Me.Lemoine, 1928
68. Species Melobesia lichenoides (Philippi) Endlicher, 1843 accepted as Lithophyllum byssoides (Lamarck) Foslie, 1900 (synonym)
69. Species Melobesia limitata (Foslie) Rosenvinge, 1917 accepted as Pneophyllum limitatum (Foslie) Y.M.Chamberlain, 1983
70. Species Melobesia macrocarpa Rosanoff, 1866 accepted as Titanoderma pustulatum (J.V.Lamouroux) Nägeli, 1858
71. Species Melobesia mamillaris Harvey, 1849 accepted as Neogoniolithon mamillare (Harvey) Setchell & L.R.Mason, 1943
72. Species Melobesia masakii Baba & Yoshida, 1997 accepted as Melobesia tomitaroi Kloczcova, 1987
73. Species Melobesia mauritiana (Foslie) Foslie, 1908 accepted as Pneophyllum mauritianum (Foslie) P.C.Silva, 1996
74. Species Melobesia melobesioides (Foslie) Lemoine, 1927 accepted as Lithoporella melobesioides (Foslie) Foslie, 1909
75. Species Melobesia microspora Rosenvinge, 1917 accepted as Pneophyllum fragile Kützing, 1843
76. Species Melobesia minutula Foslie, 1904 accepted as Pneophyllum confervicola (Kützing) Y.M.Chamberlain, 1983
77. Species Melobesia myriocarpa P.Crouan & H.Crouan, 1867 accepted as Pneophyllum myriocarpum (P.Crouan & H.Crouan) Y.M.Chamberlain, 1983
78. Species Melobesia notarisii Dufour, 1861 accepted as Neogoniolithon brassica-florida (Harvey) Setchell & L.R.Mason, 1943
79. Species Melobesia novae-zelandiae Heydrich, 1897 accepted as Fosliella farinosa (J.V.Lamouroux) M.Howe, 1920 accepted as Hydrolithon farinosum (J.V.Lamouroux) Penrose & Y.M.Chamberlain, 1993
80. Species Melobesia pacifica Masaki, 1968 accepted as Melobesia tomitaroi Kloczcova, 1987
81. Species Melobesia pacifica Heydrich, 1901 accepted as Mastophora pacifica (Heydrich) Foslie, 1903
82. Species Melobesia paschalis Me.Lemoine, 1924 accepted as Fosliella paschalis (M.Lemoine) Setchell & N.L.Gardner, 1930
83. Species Melobesia patena J.D.Hooker & Harvey, 1849 accepted as Synarthrophyton patena (Hooker f. & Harvey) R.A.Townsend, 1979
84. Species Melobesia plana Sonder, 1845 accepted as Metamastophora flabellata (Sonder) Setchell, 1943
85. Species Melobesia polymorpha Harvey, 1851 accepted as Phymatolithon calcareum (Pallas) W.H.Adey & D.L.McKibbin ex Woelkering & L.M.Irvine, 1986
86. Species Melobesia prototypa (Foslie) Foslie, 1898 accepted as Lithophyllum prototypum (Foslie) Foslie, 1905
87. Species Melobesia pruinosa Kützing, 1845 accepted as Pneophyllum fragile Kützing, 1843 (synonym)
88. Species Melobesia pustulata J.V.Lamouroux, 1816 accepted as Titanoderma pustulatum (J.V.Lamouroux) Nägeli, 1858 (synonym)
89. Species Melobesia rosea Rosanoff, 1866 accepted as Melobesia membranacea (Esper) J.V.Lamouroux, 1812
90. Species Melobesia sargassi (Foslie) Foslie, 1908 accepted as Hydrolithon sargassi (Foslie) Y.M.Chamberlain, 1994
91. Species Melobesia scabiosa Harvey, 1847 accepted as Lithothamnion scabiosum (Harvey) Foslie, 1898 (synonym)
92. Species Melobesia simulans P.L.Crouan & H.M.Crouan, 1867 accepted as Titanoderma pustulatum (J.V.Lamouroux) Nägeli, 1858
93. Species Melobesia solmsiana Falkenberg, 1901 accepted as Hydrolithon boreale (Foslie) Y.M.Chamberlain, 1994 (synonym)
94. Species Melobesia stelligera Endlicher & Diesing, 1845 accepted as Metamastophora flabellata (Sonder) Setchell, 1943
95. Species Melobesia stictaeformis Areschoug, 1852 accepted as Lithophyllum stictiforme (J.E. Areschoug) Hauck, 1877
96. Species Melobesia subplana Rosenvinge, 1917 accepted as Pneophyllum subplanum (Rosenvinge) Y.M.Chamberlain ex South & Tittley, 1986
97. Species Melobesia subtilissima Foslie, 1904 accepted as Heteroderma subtilissimum (Foslie) Foslie, 1909
98. Species Melobesia thuretii Bornet, 1878 accepted as Choreonema thuretii (Bornet) F.Schmitz, 1889
99. Species Melobesia trichostoma Rosenvinge, 1917 accepted as Pneophyllum coronatum (Rosanoff) Penrose, 1994
100. Species Melobesia vanheurckii (Heydrich) De Toni, 1924 accepted as Boreolithon van-heurckii (Heydrich) A.S.Harvey & Woelkerling, 1995
101. Species Melobesia verrucata J.V.Lamouroux, 1816 accepted as Lithophyllum pustulatum (J.V.Lamouroux) Foslie, 1904 accepted as Titanoderma pustulatum (J.V.Lamouroux) Nägeli, 1858
102. Species Melobesia zostericola (Foslie) Foslie, 1907 accepted as Pneophyllum zostericola (Foslie) D.Fujita, 1988
103. Species Melobesia crustacea (Kützing) Rabenhorst, 1847 (uncertain, uncertain taxonomic status subjected to verification)
104. Species Melobesia exasperata Duchassaing, 1850 (uncertain)
105. Species Melobesia fucicola Bertoloni, 1867 (uncertain, uncertain taxonomic status subjected to verification)
106. Species Melobesia mamillaris Duchassaing, 1850 (uncertain)
107. Species Melobesia mediterranea (Foslie) Me.Lemoine, 1924 accepted as Titanoderma mediterraneum (Foslie) Woelkerling, 1988 (uncertain)
108. Species Melobesia opalina Zanardini, 1843 (uncertain, uncertain taxonomic status subjected to verification)
109. Species Melobesia phragmiticola Skolka, 1961 (uncertain)
110. Species Melobesia polycarpa Zanardini, 1843 (uncertain)
111. Species Melobesia radiata Audouin, 1826 (uncertain, uncertain taxonomic status subjected to verification)

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