1. Species Trochiscia americana Kol, 1968
2. Species Trochiscia arguta (Reinsch) Hansgirg, 1888
3. Species Trochiscia aspera (Reinsch) Hansgirg, 1888
4. Species Trochiscia clevei Lemmermann
5. Species Trochiscia crassa Hansgirg, 1890
6. Species Trochiscia cryophila Chodat, 1922
7. Species Trochiscia dictyon (Jörgensen) Lemmermann, 1903
8. Species Trochiscia granulata (Reinsch) Hansgirg, 1888
9. Species Trochiscia gutwinksii Schmidle, 1983
10. Species Trochiscia hirta (Reinsch) Hansgirg, 1888
11. Species Trochiscia hystrix (Reinsch) Hansgirg, 1888
12. Species Trochiscia insignis (Reinsch) Hansgirg, 1888
13. Species Trochiscia lapannica Kufferath, 1950
14. Species Trochiscia minor (Hansgirg) Hansgirg
15. Species Trochiscia moebiusii Lemmermann
16. Species Trochiscia moniliformis (Turpin) Meneghini, 1837
17. Species Trochiscia naumannii Kol, 1937
18. Species Trochiscia nivalis Lagerheim, 1892
19. Species Trochiscia obtusa (Reinsch) Hansgirg, 1888
20. Species Trochiscia ostenfeldii Lemmermann
21. Species Trochiscia pachyderma (Reinsch) Hansgirg, 1888
22. Species Trochiscia palustris Kützing, 1845
23. Species Trochiscia paucispinosa West
24. Species Trochiscia planctonica E.M.Lind & Pearsall, 1945
25. Species Trochiscia planktonica Lind & Pearsall
26. Species Trochiscia polygona (Ostenfeld) Lemmermann
27. Species Trochiscia prescottii Sieminska, 1965
28. Species Trochiscia protococcoides Brand
29. Species Trochiscia psammophila Hansgirg, 1890
30. Species Trochiscia quadrijuga (Turp.) Kützing, 1833
31. Species Trochiscia reticularis (Reinsch) Hansgirg, 1888
32. Species Trochiscia retusa (Reinsch) Hansgirg, 1888
33. Species Trochiscia rubra (Kol) Kol, 1968
34. Species Trochiscia solitaris Kützing, 1833
35. Species Trochiscia spinosa (Reinsch) Hansgirg, 1888
36. Species Trochiscia stagnalis Hansgirg, 1889
37. Species Trochiscia stellata Vodenicharov & Benderliev
38. Species Trochiscia undulata (Ostenfeld) Lemmermann
39. Species Trochiscia verrucosa Playfair, 1914
40. Species Trochiscia zachariasii Lemmermann, 1903
41. Species Trochiscia aciculifera (Lagerheim) Hansgirg, 1888 accepted as Glochiococcus aciculiferus (Lagerheim) P.C.Silva, 1996 (synonym)
42. Species Trochiscia anglica (A.W.Bennett) Hansgirg, 1888 accepted as Glochiococcus anglicus (A.W.Bennett) De Toni, 1888
43. Species Trochiscia antarctica F.E.Fritsch, 1912 accepted as Desmotetra antarctica (Fritsch) H.U.Ling, 2001 (synonym)
44. Species Trochiscia bijuga (Turpin) Kützing, 1834 accepted as Scenedesmus bijugus (Turpin) Lagerheim, 1893 (synonym)
45. Species Trochiscia dimidiata Kützing, 1834 accepted as Chroococcus turgidus (Kützing) Nägeli, 1849 (synonym)
46. Species Trochiscia moniliformis Montagne, 1837 accepted as Podosira moniliformis Ehrenberg, 1840 (synonym)
47. Species Trochiscia quadruplicata Meneghini, 1837 accepted as Merismopedia quadruplicata (Meneghini) Trevisan, 1845
48. Species Trochiscia quadruplicatum Meneghini, 1837 accepted as Merismopedia quadruplicata (Meneghini) Trevisan, 1845 (synonym)
49. Species Trochiscia thermalis Meneghini, 1837 accepted as Anacystis thermalis (Meneghini) Drouet & Daily, 1952
50. Species Trochiscia amara (Turp.) Kützing, 1834 (uncertain)
51. Species Trochiscia asperula Grunow, 1859 (uncertain)
52. Species Trochiscia brachiolata (Möbius) Lemmermann, 1903 (uncertain)
53. Species Trochiscia centrota J.Schiller, 1926 (uncertain)
54. Species Trochiscia discoidea Grøntved (uncertain)
55. Species Trochiscia duplex Meneghini, 1840 (uncertain)
56. Species Trochiscia elliptica Kützing, 1833 (uncertain)
57. Species Trochiscia erlangensis Hansgirg, 1888 (uncertain)
58. Species Trochiscia formosa Stüwe, 1909 (uncertain)
59. Species Trochiscia halophila Hansgirg, 1888 (uncertain)
60. Species Trochiscia lismorensis Playfair, 1915 (uncertain)
61. Species Trochiscia multangularis Kützing, 1845 (uncertain)
62. Species Trochiscia multispinosa (Möbius) Lemmermann (uncertain)
63. Species Trochiscia papillosa Lackey (uncertain)
64. Species Trochiscia papillosa Kützing, 1845 (uncertain)
65. Species Trochiscia pectoralina Brébisson & Godey, 1835 (uncertain)
66. Species Trochiscia plicata (Reinsch) Hansgirg, 1888 (uncertain)
67. Species Trochiscia prasiola Meneghini, 1837 (uncertain)
68. Species Trochiscia protococcoides Kützing, 1845 (uncertain)
69. Species Trochiscia reinschii Hansgirg, 1888 (uncertain)
70. Species Trochiscia sanguinea Lagerheim (uncertain)
71. Species Trochiscia sporoides (Reinsch) Hansgirg, 1888 (uncertain)
72. Species Trochiscia truncata Schlenker, 2018 (uncertain, uncertain taxonomic status subjected to verification)
73. Species Trochiscia tuberculifera Gain, 1911 (uncertain)
74. Species Trochiscia uncinata West (uncertain)
75. Species Trochiscia vanhoeffenii (Jörgensen) Lemmermann (uncertain)

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