1. Species Gyrosigma acuminatum (Kützing) Rabenhorst, 1853
2. Species Gyrosigma attenuatum (Kützing) Rabenhorst, 1853
3. Species Gyrosigma balticum (Ehrenberg) Rabenhorst, 1853
4. Species Gyrosigma scalproides (Rabenhorst) Cleve, 1894
5. Species Gyrosigma virgata (Roper) Grunow, 1877
6. Species Gyrosigma vivax (W.Smith) M.Peragallo, 1908
7. Species Gyrosigma wansbeckii (Donkin) Cleve, 1894
8. Species Gyrosigma spencerii (Bailey ex Quekett) Griffith & Henfrey, 1856 accepted as Gyrosigma acuminatum (Kützing) Rabenhorst, 1853 (synonym)
9. Species Gyrosigma diaphanum Cleve, 1894 (uncertain > unassessed)
10. Species Gyrosigma distortum (W.Smith) Griffith & Henfrey, 1856 accepted as Pleurosigma distortum var. distortum W. Smith, 1852 (uncertain > unassessed)
11. Species Gyrosigma eximium (Thwaites) Boyer, 1927 accepted as Schizonema eximium Thwaites, 1848 (uncertain > unassessed)
12. Species Gyrosigma fasciola (Ehrenberg) J.W.Griffith & Henfrey, 1856 accepted as Ceratoneis fasciola Ehrenberg, 1839 (uncertain > unassessed)
13. Species Gyrosigma hippocampus (Ehrenberg) Hassall, 1845 accepted as Navicula hippocampus var. hippocampus Ehrenberg, 1838 (uncertain > unassessed)
14. Species Gyrosigma littorale (W.Smith) Griffith & Henfrey, 1856 accepted as Pleurosigma littorale var. littorale W. Smith, 1852 (uncertain > unassessed)
15. Species Gyrosigma macrum (W.Smith) J.W.Griffith & Henfrey, 1856 accepted as Pleurosigma macrum W.Smith, 1853 (uncertain > unassessed)
16. Species Gyrosigma nodiferum (Grunow) Reimer, 1966 accepted as Pleurosigma nodiferum Grunow, 1880 (uncertain > unassessed)
17. Species Gyrosigma obscurum (W.Smith) J.W.Griffith & Henfrey, 1856 (uncertain > unassessed)
18. Species Gyrosigma parkeri (Harrison) Elmore, 1921 accepted as Pleurosigma parkeri var. parkeri Harrison, 1860 (uncertain > unassessed)
19. Species Gyrosigma prolongatum (W.Smith) J.W.Griffith & Henfrey, 1856 accepted as Pleurosigma prolongatum var. prolongatum W. Smith, 1852 (uncertain > unassessed)
20. Species Gyrosigma spectabile (Grunow) Cleve, 1894 (uncertain > unassessed)
21. Species Gyrosigma strigilis (W.Smith) J.W.Griffin & Henfrey, 1856 accepted as Pleurosigma strigilis f. strigilis W. Smith, 1852 (uncertain > unassessed)
22. Species Gyrosigma tenuirostrum (Grunow) Cleve-Euler, 1952 (uncertain > unassessed)
23. Species Gyrosigma tenuissimum (W.Smith) Griffith & Henfrey, 1856 accepted as Pleurosigma tenuissimum var. tenuissimum W. Smith, 1853 (uncertain > unassessed)
24. Species Gyrosigma wormleyi (Sullivant) Boyer, 1922 accepted as Pleurosigma wormleyi W.S.Sullivant, 1859 (uncertain > unassessed)

marine, brackish, fresh

recent + fossil

Hassall, A.H. (1845). A history of the British Freshwater Algae (including descriptions of the Diatomaceae and Desmidiaceae) with upwards of one hundred Plates. I. Text. <em>Taylor, Walton, and Maberly, London.</em> 462 pp. [details] 

Kociolek, J.P.; Blanco, S.; Coste, M.; Ector, L.; Liu, Y.; Karthick, B.; Kulikovskiy, M.; Lundholm, N.; Ludwig, T.; Potapova, M.; Rimet, F.; Sabbe, K.; Sala, S.; Sar, E.; Taylor, J.; Van de Vijver, B.; Wetzel, C.E.; Williams, D.M.; Witkowski, A.; Witkowski, J. (2025). DiatomBase. Gyrosigma A.H. Hassall, 1845. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2025) European Register of Marine Species at: https://vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=149033 on 2025-05-08

Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2025). European Register of Marine Species. Gyrosigma A.H. Hassall, 1845. Accessed at: https://www.vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=149033 on 2025-05-08

[taxonomic tree]