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

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