Frustulia attenuata Kütz., 1834 | Frustulia hippocampus (Ehrenberg) Jenner, 1845 | Gyrosigma attenuatum f. typica Rabenh. | Gyrosigma attenuatum var. hippocampus Schulz, 1926 | Gyrosigma hippocampus (Ehrenberg) Hassall, 1845 | Navicula attenuata (Kütz.) Kütz., 1844 | Navicula hippocampus Ehrenberg, 1838 | Pleurosigma allenuatum | Pleurosigma attenuatum (Kütz.) W. Smith, 1852 | Pleurosigma attenuatum var. hippocampus (Ehrenberg, W.Smith) H.Perag., 1891 | Pleurosigma hippocampus (Ehrenberg) W. Smith, 1853 | Scalptrum attenuatum (Kütz.) Kuntze, 1891 | Sigmatella attenuata (Kütz.) Bréb. & Godey, 1835