Jørgensen, E. (1911), Die Ceratien. Eine kurze Monographie der Gattung Ceratium Schrank. Internationale Revue der Gesamten Hydrobiologie und Hydrographie 4 (Biol. Suppl.) ser. 2: 44 [comb. nov.]

basionym: Ceratium tripos var. gracile Gourret nom. illeg. nomenclatural synonym: Ceratium tripos var. gracile Gourret nom. illeg.

• Text: Jorgesen specifies that only pl 1 fig 17c depicted by Schroeder 1900 is this taxon.

Taylor, F.J.R. (1976), Dinoflagellates from the international Indian Ocean Expedition. A report on material collected by the R. V. 'Anton Bruun' 1963-1964. Bibliotheca Botanica 132: - [secondary reference]

Huisman, J.M. (1989), The genus Ceratium (Dinophyceae) in Bass Strait and adjoining waters, southern Australia. Australian Systematic Botany 2: 425–454 [taxonomic synonym]

taxonomic synonym of: Ceratium symmetricum Pavill. legitimate

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

• Comment: This name has been used for Freshwater dinoflagellates.

Gómez, F. (2013), Reinstatement of the dinoflagellate genus Tripos to replace Neoceratium, marine species of Ceratium (Dinophyceae, Alveolata). CICIMAR Oceanides 28(1): 15 [taxonomic synonym]

taxonomic synonym of: Tripos muelleri var. gracilis F.Gómez nom. inval.

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

taxonomic synonym of: Tripos symmetricus (Pavill.) F.Gómez legitimate

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