1. Species Idmonea affinis De Raynevald, von Heck & Ponzi, 1854 †
2. Species Idmonea aldingensis Waters, 1884 †
3. Species Idmonea alfredi (Haime, 1854) †
4. Species Idmonea alipes Gregory, 1899 †
5. Species Idmonea alternata Tenison-Woods, 1880 †
6. Species Idmonea arcuata Canu & Bassler, 1920 †
7. Species Idmonea bacillaris Seguenza, 1880 †
8. Species Idmonea bairnsdalei MacGillivray, 1895 †
9. Species Idmonea bialternata Gregory, 1893 †
10. Species Idmonea brutia Neviani, 1900 †
11. Species Idmonea complanata d'Orbigny, 1850 †
12. Species Idmonea compressa Brood, 1977 †
13. Species Idmonea concinna Maplestone, 1908 †
14. Species Idmonea conferta MacGillivray, 1895 †
15. Species Idmonea conferta Seguenza, 1880 †
16. Species Idmonea cristata (Meunier & Pergens, 1885) †
17. Species Idmonea delicatissima Maplestone, 1908 †
18. Species Idmonea denticulata (Canu & Bassler, 1926) †
19. Species Idmonea diligens Mokrinskij, 1916 †
20. Species Idmonea divergens MacGillivray, 1895 †
21. Species Idmonea elongata Maplestone, 1908 †
22. Species Idmonea expansa Ulrich & Bassler, 1904 †
23. Species Idmonea fasciculata Maplestone, 1909 †
24. Species Idmonea galeotti Nyst, 1843 †
25. Species Idmonea geminata MacGillivray, 1895 †
26. Species Idmonea gracilis Meneghini, 1844 †
27. Species Idmonea gracilis (von Hagenow in Geinitz, 1846) †
28. Species Idmonea grandiora Canu & Bassler, 1920 †
29. Species Idmonea grateloupi d'Orbigny, 1853 †
30. Species Idmonea hedenborgi Manzoni in Fischer, 1877 †
31. Species Idmonea lata MacGillivray, 1895 non d'Orbigny, 1853 †
32. Species Idmonea magna Canu & Bassler, 1920 †
33. Species Idmonea magnireversa Canu & Bassler, 1920 †
34. Species Idmonea minor Yang & Lu, 1981 †
35. Species Idmonea morningtoniensis Maplestone, 1908 †
36. Species Idmonea obliqua (d'Orbigny, 1853) †
37. Species Idmonea parasitica (von Hagenow, 1839) †
38. Species Idmonea parvula Maplestone, 1908 †
39. Species Idmonea radiata (Hennig, 1894) †
40. Species Idmonea radiolitorum d'Orbigny, 1850 †
41. Species Idmonea rostrigera Balavoine, 1960 †
42. Species Idmonea rugica (Voigt, 1924) †
43. Species Idmonea seguenzai Neviani, 1900 †
44. Species Idmonea semispiralis MacGillivray, 1895 †
45. Species Idmonea simplex (de Loriol, 1863) †
46. Species Idmonea sloani Canu & Bassler, 1920 †
47. Species Idmonea snehi Wilson, Bosch & Taylor, 2015 †
48. Species Idmonea spica Seguenza, 1880 †
49. Species Idmonea subcarinata d'Orbigny, 1853 †
50. Species Idmonea subdistica De Gregorio, 1890 †
51. Species Idmonea translucens Voigt, 1924 †
52. Species Idmonea triangularis (Hennig, 1894) non (d'Orbigny, 1851) †
53. Species Idmonea triquetra Lamouroux, 1821 †
54. Species Idmonea uniseriata Maplestone, 1908 †
55. Species Idmonea venusta MacGillivray, 1895 †
56. Species Idmonea aculeata Michelin, 1846 † accepted as Truncatulipora pinnata (Römer, 1840) † (Subjective synonym)
57. Species Idmonea atlantica Forbes in Johnston, 1847 accepted as Exidmonea atlantica (Forbes in Johnston, 1847)
58. Species Idmonea australis MacGillivary, 1882 accepted as Idmidronea australis (MacGillivray, 1882)
59. Species Idmonea bidenkapi Kluge, 1955 accepted as Idmidronea bidenkapi (Kluge, 1955)
60. Species Idmonea biseriata Phillipi, 1844 † accepted as Bitubigera biseriata (Philippi, 1844) †
61. Species Idmonea canariensis d'Orbigny, 1853 accepted as Crisina canariensis (d'Orbigny, 1853) (Basionym)
62. Species Idmonea compressa Reuss, 1848 † accepted as Exochoecia compressa (Reuss, 1847) † (Basionym)
63. Species Idmonea coronopus Defrance, 1822 † accepted as Idmidronea coronopus (Defrance, 1822) †
64. Species Idmonea filiformis Canu & Bassler, 1920 † accepted as Idmidronea filiformis (Canu & Bassler, 1920) † (Basionym)
65. Species Idmonea filiformis Canu & Bassler, 1929 accepted as Idmidronea filiformis (Canu & Bassler, 1929) (Basionym)
66. Species Idmonea fissurata Busk, 1886 accepted as Pseudidmonea fissurata (Busk, 1886)
67. Species Idmonea foraminosa Reuss, 1851 † accepted as Crisidmonea foraminosa (Reuss, 1851) †
68. Species Idmonea geniculata von Hagenow, 1851 † accepted as Pergensella geniculata (von Hagenow, 1851) †
69. Species Idmonea gracillima Busk, 1875 accepted as Exidmonea flexuosa (Pourtalès, 1867) (Subjective synonym)
70. Species Idmonea grallator Canu & Bassler, 1920 accepted as Exidmonea grallator (Canu & Bassler, 1920) †
71. Species Idmonea insignis Marsson, 1887 accepted as Idmonella insignis (Marsson, 1887) †
72. Species Idmonea irregularis Meneghini, 1844 accepted as Tervia irregularis (Meneghini, 1844) (Basionym)
73. Species Idmonea maxillaris Lonsdale, 1845 † accepted as Idmidronea maxillaris (Lonsdale, 1845) † (Basionym)
74. Species Idmonea milneana d'Orbigny, 1842 accepted as Nevianipora milneana (d'Orbigny, 1842)
75. Species Idmonea notomala Busk, 1875 accepted as Tubulipora notomala (Busk, 1875) (Basionym)
76. Species Idmonea organisans (d'Orbigny, 1842) accepted as Tubulipora organisans d'Orbigny, 1842
77. Species Idmonea pertusa Reuss, 1848 † accepted as Pleuronea pertusa (Reuss, 1848) † (Basionym)
78. Species Idmonea pruinosa Stimpson, 1853 accepted as Exidmonea pruinosa (Stimpson, 1853)
79. Species Idmonea semicylindrica Römer, 1840 † accepted as Desmepora semicylindrica (Römer, 1840) †
80. Species Idmonea tacta Canu & Bassler, 1920 † accepted as Idmidronea tacta (Canu & Bassler, 1920) † (Basionym)
81. Species Idmonea tenella Ortmann, 1890 accepted as Exidmonea flexuosa (Pourtalès, 1867) (subjective synonym)
82. Species Idmonea tetragona Michelin, 1846 † accepted as Truncatulipora tetragona (Michelin, 1846) † (Basionym)
83. Species Idmonea triforis Heller, 1867 accepted as Exidmonea triforis (Heller, 1867) (Basionym)
84. Species Idmonea watersi Kluge, 1946 accepted as Exidmonea flexuosa (Pourtalès, 1867) (Subjective synonym)
85. Species Idmonea arborea Calvet, 1911 (uncertain > taxon inquirendum)
86. Species Idmonea bifrons Waters, 1884 (uncertain > taxon inquirendum)
87. Species Idmonea erecta Calvet, 1902 (uncertain > taxon inquirendum)
88. Species Idmonea falciformis Ortmann, 1890 (uncertain > taxon inquirendum)
89. Species Idmonea flabellata Kirchenpauer, 1869 (uncertain > taxon inquirendum)
90. Species Idmonea frondosa Meneghini, 1845 (uncertain > taxon inquirendum)
91. Species Idmonea granulata Milne Edwards, 1838 (uncertain > taxon inquirendum)
92. Species Idmonea horrida Calvet, 1906 (uncertain > taxon inquirendum)
93. Species Idmonea insolita Jullien, 1882 (uncertain > taxon inquirendum)
94. Species Idmonea marionensis Busk, 1875 (uncertain > taxon inquirendum)
95. Species Idmonea nana Calvet, 1902 (uncertain > taxon inquirendum)
96. Species Idmonea parasitica Busk, 1875 (uncertain > taxon inquirendum)
97. Species Idmonea parvula Canu & Bassler, 1920 † (uncertain > taxon inquirendum)
98. Species Idmonea parvula Canu & Bassler, 1929 (uncertain > taxon inquirendum)
99. Species Idmonea pedata Norman, 1909 (uncertain > taxon inquirendum)
100. Species Idmonea tortuosa Kirkpatrick, 1888 (uncertain > taxon inquirendum)
101. Species Idmonea tuberosa d'Orbigny, 1853 (uncertain > taxon inquirendum)
102. Species Idmonea tubulipora Meneghini, 1847 (uncertain > taxon inquirendum)

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