Kofoid, C.A. (1907), Reports on the scientific results of the expedition to the eastern tropical Pacific, in charge of Alexander Agassiz, by the U.S. Fish Commission Steamer 'Albatross', from October, 1904, to March, 1905. Lieut. Commander L. M. Garrett, U.S.N., commanding. IX New species of dinoflagellates. Bulletin of the Museum of Comparative Zoology Harvard 50 (6): 173, pl 3 fig 23 [tax. nov.]

• Type locality: Stations 4719, 4740

Jørgensen, E. (1911), Die Ceratien. Eine kurze Monographie der Gattung Ceratium Schrank. Internationale Revue der Gesamten Hydrobiologie und Hydrographie 4 (Biol. Suppl.) ser. 2: 27 [basionym]

basionym of: Ceratium pennatum var. scapiforme (Kof.) Jørg. legitimate

Wood, E.J.F. (1954), Dinoflagellates of the Australian region. Australian Journal of Marine and Freshwater Research 5: - [secondary reference]

Huisman, J.M. (1989), The genus Ceratium (Dinophyceae) in Bass Strait and adjoining waters, southern Australia. Australian Systematic Botany 2: - [taxonomic synonym]

taxonomic synonym of: Ceratium falcatiforme Jørg. legitimate

ABRS (2008), Australian Algal Name Index Edn. 2008: - [secondary reference]

• Comment: Wood 1954 Australian Journal of Marine & Freshwater Research 52: p. 281 makes a point of indicating that this name is not a combination of Ceratium pennatum var. scapiforme but then does not use the earliest available name Ceratium scapiforme for the species known as Ceratium falcatiforme.

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