1. Species Syracosphaera adriatica Schiller
2. Species Syracosphaera ampliora Okada & McIntyre, 1977
3. Species Syracosphaera andruleitii Kleijne & Cros, 2009
4. Species Syracosphaera anthos (Lohman) Janin, 1987
5. Species Syracosphaera azureaplaneta Young, Bown, Cros, Hagino & Jordan, 2018
6. Species Syracosphaera bannockii (Borsetti & Cati) Cros et al., 2000
7. Species Syracosphaera bifenestrata J.Schiller, 1913
8. Species Syracosphaera borealis Okada & McIntyre, 1977
9. Species Syracosphaera castellata Kleijne & Cros, 2009
10. Species Syracosphaera confusa P.Halldal & J.Markali
11. Species Syracosphaera cordiformis Schiller, 1913
12. Species Syracosphaera cornus Kamptner
13. Species Syracosphaera corolla J.Lecal, 1966
14. Species Syracosphaera coronata J.Schiller, 1913
15. Species Syracosphaera cupulifera Schiller
16. Species Syracosphaera delicata Cros et al., 2000
17. Species Syracosphaera dentata Lohmann, 1902
18. Species Syracosphaera didyma Kleijne & Cros, 2009
19. Species Syracosphaera dilatata R.W.Jordan, Kleijne & Heimdal, 1993
20. Species Syracosphaera elevata Archontikis, Jer.R.Young & L.Cros, 2020
21. Species Syracosphaera epigrosa Okada & McIntyre, 1977
22. Species Syracosphaera florida Sánchez-Suárez, 1990
23. Species Syracosphaera grundii Schiller
24. Species Syracosphaera halldalii Gaarder ex R.W.Jordan & J.C.Green, 1994
25. Species Syracosphaera hastata Kleijne & Cros, 2009
26. Species Syracosphaera hirsuta Kleijne & Cros, 2009
27. Species Syracosphaera histrica Kamptner, 1941
28. Species Syracosphaera lactaria Lecal-Schlauder, 1966
29. Species Syracosphaera lafourcadei (Lecal-Schlauder) Archontikis, Young & Cros, 2020
30. Species Syracosphaera lamina Lecal-Schlauder, 1951
31. Species Syracosphaera leptolepis Kleijne & Cros, 2009
32. Species Syracosphaera lohmannii Brunnthaler, 1911
33. Species Syracosphaera marginiporata M.Knappertsbusch, 1993
34. Species Syracosphaera molischii J.Schiller, 1925
35. Species Syracosphaera nana (Kamptner) Okada & McIntyre, 1977
36. Species Syracosphaera nodosa Kamptner, 1941
37. Species Syracosphaera noroitica M.Knappertsbusch, 1993
38. Species Syracosphaera operculata Kleijne & Cros, 2009
39. Species Syracosphaera orbiculus Okada & McIntyre, 1977
40. Species Syracosphaera origami (Cros & McGrane) Archontikis, Young & Cros, 2020
41. Species Syracosphaera ovata Schiller
42. Species Syracosphaera pemmadiscus F.H.Chang, 2013
43. Species Syracosphaera periperforata (Kleijne) Archontikis, Young & Cros, 2020
44. Species Syracosphaera pirus Halldal & Markali, 1955
45. Species Syracosphaera prolongata Gran ex Lohmann, 1913
46. Species Syracosphaera protrudens Okada & McIntyre, 1977
47. Species Syracosphaera pulchra Lohmann, 1902
48. Species Syracosphaera radiata Schiller
49. Species Syracosphaera reniformis Kleijne & Cros, 2009
50. Species Syracosphaera rotaconica Archontikis, Jer.R.Young & L.Cros, 2020
51. Species Syracosphaera rotula Okada & McIntyre, 1977
52. Species Syracosphaera serrata Kleijne & Cros, 2009
53. Species Syracosphaera squamosa Kleijne & Cros, 2009
54. Species Syracosphaera subsalsa (Conrad) Kamptner, 1928
55. Species Syracosphaera tumularis Sánchez- Suárez, 1990
56. Species Syracosphaera winteri Keuter, Koplovitz, Zingone, J.R.Young & Frada, 2021
57. Species Syracosphaera binodata Kamptner, 1927 accepted as Coronosphaera binodata (Kamptner) Gaarder, 1977 accepted as Syracosphaera mediterranea var. binodata Kamptner, 1927 (synonym)
58. Species Syracosphaera binodata (Kamptner) Kamptner, 1937 accepted as Syracosphaera mediterranea var. binodata Kamptner, 1927
59. Species Syracosphaera brandtii J.Schiller, 1925 accepted as Chrysotila carterae (Braarud & Fagerland) Andersen, Kim, Tittley & Yoon, 2014 (synonym)
60. Species Syracosphaera carterae Braarud & Fargerland, 1946 accepted as Chrysotila carterae (Braarud & Fagerland) Andersen, Kim, Tittley & Yoon, 2014 (basionym)
61. Species Syracosphaera corii J.Schiller, 1925 accepted as Michaelsarsia elegans Gran, 1912 (synonym)
62. Species Syracosphaera cornifera J.Schiller, 1913 accepted as Helladosphaera cornifera (J.Schiller) Kamptner, 1937 (Basionym)
63. Species Syracosphaera corrugis Okada & McIntyre, 1977 accepted as Syracosphaera molischii J.Schiller, 1925 (synonym)
64. Species Syracosphaera elatensis Winter, 1979 accepted as Syracosphaera molischii J.Schiller, 1925 (synonym)
65. Species Syracosphaera elongata Droop, 1955 accepted as Chrysotila elongata (Droop) Andersen, J.T.Kim, Tittley & H.S.Yoon, 2014
66. Species Syracosphaera gaarderae (Borsetti & Cati) Keuter, J.R.Young & M.J.Frada, 2019 accepted as Helladosphaera gaarderae Borsetti & Cati, 1976 (synonym)
67. Species Syracosphaera heimii Lohmann, 1919 accepted as Thoracosphaera heimii (Lohmann) Kamptner, 1944 (synonym)
68. Species Syracosphaera maxima Halldal & Markali, 1955 accepted as Coronosphaera maxima (Halldal & Markali) Gaarder, 1977 (Basionym)
69. Species Syracosphaera mediterranea Lohmann, 1902 accepted as Coronosphaera mediterranea (Lohmann) Gaarder, 1977 (Basionym)
70. Species Syracosphaera ossa J.Lecal, 1966 accepted as Syracosphaera ossa Loeblich Jr. & Tappan, 1968
71. Species Syracosphaera quadricornu J.Schiller, 1914 accepted as Algirosphaera quadricornu (Schiller) R.E.Norris, 1984 (Synonym)
72. Species Syracosphaera quadriperforata Kamptner, 1937 accepted as Calcidiscus leptoporus subsp. quadriperforatus (Kamptner) Geisen et al., 2002 (synonym)
73. Species Syracosphaera quatricornu Schiller, 1914 accepted as Algirosphaera quadricornu (Schiller) R.E.Norris, 1984 (synonym)
74. Species Syracosphaera roscoffensis P.A.Dangeard, 1934 accepted as Chrysotila roscoffensis (P.A.Dangeard) R.A.Andersen, J.I.Kim, Tittley & H.S.Yoon, 2015 (synonym)
75. Species Syracosphaera schilleri Kamptner, 1927 accepted as Syracolithus schilleri (Kamptner) Norris, 1985 (synonym)
76. Species Syracosphaera catillifera Kamptner, 1937 (uncertain, synonym)
77. Species Syracosphaera ossa Loeblich Jr. & Tappan, 1968 (uncertain)

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