Amphitropis L. Rabenhorst, 1868 (original description)
Amphitropis alata (Ehrenberg) Rabenhorst, 1868 accepted as Entomoneis alata (Ehrenberg) Ehrenberg, 1845 (new combination reference)
Amphitropis duplex (Donkin) Rabenhorst, 1868 accepted as Amphiprora duplex var. duplex Donkin, 1858 (new combination reference)
Amphitropis gigantea (Grunow) Rabenhorst, 1868 accepted as Amphiprora gigantea var. gigantea Grunow, 1860 (new combination reference)
Amphitropis paludosa (W.Smith) Rabenhorst, 1868 accepted as Amphiprora paludosa var. paludosa W. Smith, 1853 accepted as Entomoneis paludosa (W.Smith) Reimer, 1975 (new combination reference)
Cymbella cuspidata f. maxima Rabenhorst, 1868 (original description)
Dactylococcus bicaudatus A.Braun ex Rabenhorst, 1868 accepted as Keratococcus bicaudatus (A.Braun ex Rabenhorst) J.B.Petersen, 1928 (original description)
Hydrianum acutum (A.Braun) Rabenhorst, 1868 accepted as Characiopsis acuta (A.Braun) Borzì, 1895 (new combination reference)
Hydrianum pyriforme (A.Braun) Rabenhorst, 1868 accepted as Characiopsis pyriformis (A.Braun) Borzì, 1895 (new combination reference)
Navicula smithiana Rabenhorst, 1868 (original description)
Nitzschia constricta var. putrida (Cohn) Rabenhorst, 1868 accepted as Synedra putrida Cohn, 1854 (new combination reference)
Nitzschia curvula f. parva Grunow in Rabenhorst, 1868 (original description)
Rhaphidium falcula A.Braun, 1868 accepted as Ankistrodesmus falcula (A.Braun) Brunnthaler, 1915 (original description)
Rhaphidium polymorphum var. aciculare (A.Braun) Rabenhorst, 1868 accepted as Ankistrodesmus falcatus var. acicularis (A.Braun) G.S.West, 1904 accepted as Monoraphidium griffithii (Berkeley) Komárková-Legnerová, 1969 (new combination reference)
Surirella biseriata var. constricta Reinsch in Rabenhorst, 1868 (original description)
Surirella ovata var. suevica Zeller in Rabenhorst, 1868 accepted as Surirella suevica Zeller in Rabenhorst, 1861 (original description)