1. Species Exosphaeroma agmokara Bruce, 2003
2. Species Exosphaeroma aliae Baker, 1926
3. Species Exosphaeroma alveola Bruce, 2003
4. Species Exosphaeroma amplicauda (Stimpson, 1857)
5. Species Exosphaeroma antarctica Richardson, 1908
6. Species Exosphaeroma antikraussi Barnard, 1940
7. Species Exosphaeroma aphrodita Boone, 1923
8. Species Exosphaeroma bicolor Baker, 1926
9. Species Exosphaeroma brevitelson Barnard, 1914
10. Species Exosphaeroma bruscai Espinosa-Pérez & Hendrickx, 2001
11. Species Exosphaeroma chilense (Dana, 1853)
12. Species Exosphaeroma diminutum Menzies & Frankenberg, 1966
13. Species Exosphaeroma echinensis Hurley & Jansen, 1977
14. Species Exosphaeroma estuarium Barnard, 1951
15. Species Exosphaeroma falcatum Tattersall, 1921
16. Species Exosphaeroma gigas (Leach, 1818)
17. Species Exosphaeroma hylecoetes Barnard, 1940
18. Species Exosphaeroma inornatus Dow, 1958
19. Species Exosphaeroma kraussi Tattersall, 1913
20. Species Exosphaeroma laevis (Baker, 1910)
21. Species Exosphaeroma laeviusculum (Heller, 1865)
22. Species Exosphaeroma lanceolatum (White, 1843)
23. Species Exosphaeroma montis (Hurley & Jansen, 1977)
24. Species Exosphaeroma obtusum (Dana, 1853)
25. Species Exosphaeroma octoncum (Richardson, 1899)
26. Species Exosphaeroma pallidum Barnard, 1940
27. Species Exosphaeroma parvus Chilton, 1924
28. Species Exosphaeroma paydenae Wall, Bruce & Wetzer, 2015
29. Species Exosphaeroma pentcheffi Wall, Bruce & Wetzer, 2015
30. Species Exosphaeroma planulum Hurley & Jansen, 1971
31. Species Exosphaeroma planum Barnard, 1914
32. Species Exosphaeroma porrectum Barnard, 1914
33. Species Exosphaeroma rhomburum (Richardson, 1899)
34. Species Exosphaeroma russellhansoni Wall, Bruce & Wetzer, 2015
35. Species Exosphaeroma serventii Baker, 1928
36. Species Exosphaeroma studeri Vanhöffen, 1914
37. Species Exosphaeroma truncatitelson Barnard, 1940
38. Species Exosphaeroma varicolor Barnard, 1914
39. Species Exosphaeroma waitemata Bruce, 2005
40. Species Exosphaeroma alata Baker, 1926 accepted as Ptyosphaera alata (Baker, 1926) (unaccepted > superseded combination)
41. Species Exosphaeroma alii Baker, 1926 accepted as Exosphaeroma aliae Baker, 1926 (unaccepted > misspelling - incorrect original spelling, explicitly named for a female)
42. Species Exosphaeroma amplifrons Stebbing, 1902 accepted as Cymodoce amplifrons (Stebbing, 1902) (basionym)
43. Species Exosphaeroma barrerae Boone, 1918 accepted as Cymodoce barrerae (Boone, 1918) (unaccepted > superseded combination)
44. Species Exosphaeroma bondi Van Name, 1936 accepted as Cassidinidea bondi (Van Name, 1936)
45. Species Exosphaeroma chilensis (Dana, 1853) accepted as Exosphaeroma chilense (Dana, 1853) (Species name emended to agree with neuter genus)
46. Species Exosphaeroma chinense Tattersall, 1921 accepted as Gnorimosphaeroma chinense (Tattersall, 1921) (unaccepted > superseded combination)
47. Species Exosphaeroma crenulatum (Richardson, 1902) accepted as Dynamene perforata Moore, 1901 accepted as Dynamenella perforata (Moore, 1901) (unaccepted > superseded combination)
48. Species Exosphaeroma faxoni Richardson, 1905 accepted as Heteruropus faxoni (Richardson, 1905) (unaccepted > superseded combination)
49. Species Exosphaeroma fluminense Mane-Garzón, 1944 accepted as Cassidinidea fluminensis (Mañe-Garzón, 1944)
50. Species Exosphaeroma globicauda Dana, 1853 accepted as Dynoides globicauda (Dana, 1853) (basionym)
51. Species Exosphaeroma inornata Dow, 1958 accepted as Exosphaeroma inornatus Dow, 1958 (unaccepted > misspelling - incorrect original spelling, genus is masculine)
52. Species Exosphaeroma insulare Van Name, 1940 accepted as Gnorimosphaeroma insulare (Van Name, 1940) (unaccepted > superseded combination)
53. Species Exosphaeroma intermedium Baker, 1926 accepted as Sphaeroma intermedium (Baker, 1926) (unaccepted > superseded combination)
54. Species Exosphaeroma madrasensis Srinivasan, 1959 accepted as Cymodoce madrasensis (Srinivasan, 1959) (basionym)
55. Species Exosphaeroma media George & Strömberg, 1968 accepted as Exosphaeroma inornata Dow, 1958 accepted as Exosphaeroma inornatus Dow, 1958 (unaccepted > junior subjective synonym)
56. Species Exosphaeroma nuttingi Boone, 1921 accepted as Paracerceis nuttingi (Boone, 1921) (basionym)
57. Species Exosphaeroma ovatum Gurjanova, 1933 accepted as Gnorimosphaeroma ovatum (Gurjanova, 1933) (basionym)
58. Species Exosphaeroma papillae Bayliff, 1938 accepted as Sphaeroma papillae (Bayliff, 1938) (unaccepted > superseded combination)
59. Species Exosphaeroma parva Chilton, 1924 accepted as Exosphaeroma parvus Chilton, 1924 (unaccepted > misspelling - incorrect original spelling, genus is masculine)
60. Species Exosphaeroma platense Giambiagi, 1922 accepted as Pseudosphaeroma platense (Giambiagi, 1922) (basionym)
61. Species Exosphaeroma pulchellum Colosi, 1921 accepted as Lekanesphaera hookeri (Leach, 1814) (unaccepted > junior subjective synonym)
62. Species Exosphaeroma reticulatum Stebbing, 1910 accepted as Sphaeromopsis reticulata (Stebbing, 1910) (unaccepted > superseded combination)
63. Species Exosphaeroma rhombofrontalis Giambiagi, 1922 accepted as Tholozodium rhombofrontalis (Giambiagi, 1922) accepted as Tholozodium rhombofrontale (Giambiagi, 1922) (basionym)
64. Species Exosphaeroma setulosa Stebbing, 1902 accepted as Cymodoce setulosa (Stebbing, 1902) (basionym)
65. Species Exosphaeroma valida Stebbing, 1902 accepted as Cymodoce valida (Stebbing, 1902) (basionym)
66. Species Exosphaeroma alba Menzies & Glynn, 1968 (uncertain > nomen dubium)
67. Species Exosphaeroma antillense Richardson, 1912 (uncertain > taxon inquirendum)
68. Species Exosphaeroma coatsii Tattersall, 1913 (uncertain > nomen dubium)
69. Species Exosphaeroma productatelson Menzies & Glynn, 1968 (uncertain > nomen dubium)
70. Species Exosphaeroma yucatanum (Richardson, 1901) (uncertain > nomen dubium)

The webpage text is licensed under a Creative Commons Attribution 4.0 License