Okamura, K. & Nishikawa, T. (1904), A List of species of Ceratium in Japan. Annotationes Zoologicae Japonenses 5 (3): 128, pl. 6, fig. 25 [tax. nov.]

• Type locality: Loc. in Japan: Kushimoto in Prov. Kii (T. Nishikawa coll.)

Kofoid, C.A. (1906), On the significance of the asymmetry in Triposolenia. University of California Publications in Zoology 3: 133 [basionym]

basionym of: Ceratium strictum (Okamura & Nishikawa) Kof. legitimate

Jørgensen, E. (1920), Mediterranean Ceratia. Report of the Danish Oceanographic Expedition to the Mediterranean 1908-1910 to the Mediterranean and Adjacent Seas II (Biol.) J. 1: 45 [basionym]

basionym of: Ceratium extensum f. strictum (Okamura & Nishikawa) Jørg. legitimate

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

McCarthy, P. (Comp.) (2012), Census of Australian Marine Dinoflagellates: - [nomenclatural synonym]

nomenclatural synonym of: Ceratium extensum f. strictum (Okamura & Nishikawa) Jørg. legitimate

McCarthy, P. (Comp.) (2012), Census of Australian Marine Dinoflagellates: - [taxonomic synonym]

taxonomic synonym of: Ceratium biceps Clap. & J.Lachm. legitimate

Gómez, F. (2013), Reinstatement of the dinoflagellate genus Tripos to replace Neoceratium, marine species of Ceratium (Dinophyceae, Alveolata). CICIMAR Oceanides 28(1): 20 table 1 [taxonomic synonym]

taxonomic synonym of: Tripos strictus F.Gómez nom. inval.

Guiry, M.D. & Guiry, G M. (2021), -. Algaebase web site: www.algaebase.org: - [nomenclatural synonym]

nomenclatural synonym of: Tripos strictus F.Gómez nom. inval.

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