CaRMS Taxon list
Arcuatasigma closterioides (Grunow) G.Reid, 2012
Gyrosigma acuminatum (Kützing) Rabenhorst, 1853
Gyrosigma attenuatum (Kützing) Rabenhorst, 1853
Gyrosigma balticum (Ehrenberg) Rabenhorst, 1853
Gyrosigma concilians (Cleve) Okolodkov, 1989 accepted as Amphiprora concilians Cleve, 1896
Gyrosigma diaphanum Cleve, 1894 (uncertain > unassessed )
Gyrosigma distortum (W.Smith) Griffith & Henfrey, 1856 accepted as Pleurosigma distortum var. distortum W. Smith, 1852
Gyrosigma fasciola (Ehrenberg) J.W.Griffith & Henfrey, 1856 accepted as Ceratoneis fasciola Ehrenberg, 1839
Gyrosigma hudsonii Poulin & Cardinal, 1982 (uncertain > unassessed )
Gyrosigma littorale (W.Smith) Griffith & Henfrey, 1856 accepted as Pleurosigma littorale var. littorale W. Smith, 1852
Gyrosigma obscurum (W.Smith) J.W.Griffith & Henfrey, 1856 (uncertain > unassessed )
Gyrosigma prolongatum (W.Smith) J.W.Griffith & Henfrey, 1856 accepted as Pleurosigma prolongatum var. prolongatum W. Smith, 1852
Gyrosigma prolongatum var. closterioides (Grunow) Cleve, 1894 accepted as Pleurosigma prolongatum var. closterioides Grunow, 1884
Gyrosigma strigilis (W.Smith) J.W.Griffin & Henfrey, 1856 accepted as Pleurosigma strigilis f. strigilis W. Smith, 1852
Gyrosigma tenuissimum (W.Smith) Griffith & Henfrey, 1856 accepted as Pleurosigma tenuissimum var. tenuissimum W. Smith, 1853
Gyrosigma tenuissimum var. hyperborea (Grunow in Cleve & Grunow) Cleve; Poulin & Cardinal accepted as Pleurosigma tenuissimum var. hyperborea Grunow in Cleve & Grunow, 1880
Gyrosigma wansbeckii (Donkin) Cleve, 1894
Gyrosigma wormleyi (Sullivant) Boyer, 1922 accepted as Pleurosigma wormleyi W.S.Sullivant, 1859
Pleurosigma aestuarii (Brébisson ex Kützing) W.Smith, 1853
Pleurosigma allenuatum accepted as Pleurosigma attenuatum (Kützing) W.Smith, 1852 accepted as Gyrosigma attenuatum (Kützing) Rabenhorst, 1853
Pleurosigma angulatum (Queckett) W.Smith, 1852 (uncertain > unassessed )
Pleurosigma angulatum f. strigosum (W.Smith) Van Heurck, 1880 accepted as
Pleurosigma attenuatum (Kützing) W.Smith, 1852 accepted as Gyrosigma attenuatum (Kützing) Rabenhorst, 1853
Pleurosigma balticum (Ehrenberg) W.Smith, 1852 accepted as Gyrosigma balticum (Ehrenberg) Rabenhorst, 1853
Pleurosigma carinatum Donkin, 1858 (uncertain > unassessed )
Pleurosigma decorum W.Smith, 1853
Pleurosigma distortum W.Smith, 1852 accepted as Gyrosigma distortum (W.Smith) Griffith & Henfrey, 1856 accepted as Pleurosigma distortum var. distortum W. Smith, 1852
Pleurosigma distortum var. distortum W. Smith, 1852 (uncertain > unassessed )
Pleurosigma elongatum W.Smith, 1852
Pleurosigma fasciola (Ehrenberg) W.Smith, 1852 accepted as Gyrosigma fasciola (Ehrenberg) J.W.Griffith & Henfrey, 1856 accepted as Ceratoneis fasciola Ehrenberg, 1839
Pleurosigma formosum W.Smith, 1852
Pleurosigma intermedium W.Smith, 1853
Pleurosigma littorale W.Smith, 1852 accepted as Gyrosigma littorale (W.Smith) Griffith & Henfrey, 1856 accepted as Pleurosigma littorale var. littorale W. Smith, 1852
Pleurosigma littorale var. littorale W. Smith, 1852 (uncertain > unassessed )
Pleurosigma normanii Ralfs, 1861
Pleurosigma prolongatum W.Smith, 1852 accepted as Gyrosigma prolongatum (W.Smith) J.W.Griffith & Henfrey, 1856 accepted as Pleurosigma prolongatum var. prolongatum W. Smith, 1852
Pleurosigma prolongatum var. closterioides Grunow, 1884 (uncertain > unassessed )
Pleurosigma prolongatum var. prolongatum W. Smith, 1852 (uncertain > unassessed )
Pleurosigma siberica (Grunow) Cardinal, Poulin & Berard-Therriault, 1980 (uncertain > unassessed )
Pleurosigma spencerii Grunow
Pleurosigma strigilis W.Smith, 1852 accepted as Gyrosigma strigilis (W.Smith) J.W.Griffin & Henfrey, 1856 accepted as Pleurosigma strigilis f. strigilis W. Smith, 1852
Pleurosigma strigilis f. strigilis W. Smith, 1852 (uncertain > unassessed )
Pleurosigma strigosum W.Smith, 1852
Pleurosigma stuxbergii Cleve & Grunow, 1880
Pleurosigma stuxbergii var. rhomboides (Cleve in Cleve & Grunow) Cleve
Pleurosigma tenuissimum W.Smith, 1853 accepted as Gyrosigma tenuissimum (W.Smith) Griffith & Henfrey, 1856 accepted as Pleurosigma tenuissimum var. tenuissimum W. Smith, 1853
Pleurosigma tenuissimum var. hyperborea Grunow in Cleve & Grunow, 1880 (uncertain > unassessed )
Pleurosigma tenuissimum var. tenuissimum W. Smith, 1853 (uncertain > unassessed )
Pleurosigma vitrea (uncertain > unassessed )
Pleurosigma vitrea var. vitrea Cleve in Cleve & Moller, 1879 (uncertain > unassessed )
Pleurosigma wormleyi W.S.Sullivant, 1859 (uncertain > unassessed )