Scenedesmus hystrix Lagerheim 1882: 62, Scenedesmus denticulatus var. linearis Hansgirg, Scenedesmus bijuga (Turpin) Lagerheim, Scenedesmus acutus var. dimorphus (Turpin) Rabenhorst, Scenedesmus acuminatus (Lagerheim) Chodat, Scenedesmus dimorphus (Turpin) Kützing, Scenedesmus bijugatus (Turp.) Kütz. var. graevenitzii (Bernard) Chodat, Scenedesmus quadricauda var. bicaudatus Hansgirg, Ankistrodesmus falcatus (Corda) Ralfs, Ankistrodesmus braunii (Nägeli) Lemmermann, Acutodesmus obliquus (Turpin) Hegewald and Hanagata, Stigeoclonium attenuatum (Hazen) Collins, Closterium subulatum (Kützing) Brébisson, Closterium dianae Ehrenberg ex Ralfs, Cosmarium granatum Brébisson ex Ralfs, Cosmarium isthmocondrum, Cosmarium lundellii var. ellipticum West and G.S.West, Cosmarium impressulum var. suborthogonum (Raciborski) Taft, Cosmarium crenatum Ralfs ex Ralfs, Cosmarium angulosum Breb.