Ostenfeld, C.E.H. & Schmidt, J. (1901), Plankton fra det Rode Hav og Adenbugten [Plankton of the Red Sea and the Gulf of Aden]. Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening i Kjobenhavn 25: 166-167, fig 18 [tax. nov.]

• Type locality: Red Sea

Schiller, J. in Rabenhorst, L. (ed.) (1937), Dinoflagellatae. Kryptogamen-Flora von Deutschland, Osterreich und der Schweiz Bd 10 Abt 3: 415 [basionym]

basionym of: Ceratium buceros f. tenue (Ostenf. & E.J.Schmidt) Böhm legitimate

Wood, E.J.F. (1954), Dinoflagellates of the Australian region. Australian Journal of Marine and Freshwater Research 5: 171–351 [secondary reference]

Jeffrey, S.W. & Hallegraeff, G.M. (1980), Studies of phytoplankton species and photosynthetic pigments in a warm core eddy of the East Australian Current. I. Summer populations. Marine Ecology Progress Series 3: 285–294 [secondary reference]

Revelante, N., Williams, W.T. & Bunt, J.S. (1982), Temporal and spatial distribution of diatoms, dinoflagellates and Trichodesmium in waters of the Great Barrier Reef Australia. Journal of Experimental Marine Biology and Ecology 63: 27–46 [secondary reference]

Hallegraeff, G.M. & Jeffrey, S.W. (1984), Tropical phytoplankton species and pigments of continental shelf waters of north and north-west Australia. Marine Ecology Progress Series 20: 59–74 [secondary reference]

Hallegraeff, G.M. & Reid, D.D. (1986), Phytoplankton species successions and their hydrological environment at a coastal station off Sydney. Austral. J. Mar. Freshw. Res 37: 361–377 [secondary reference]

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

taxonomic synonym: Ceratium inclinatum Kof. legitimate taxonomic synonym: Ceratium buceros f. inclinatum (Kof.) Böhm legitimate taxonomic synonym: Ceratium buceros f. leptosomum (Jørg.) Böhm legitimate

Parry, G.D., Langdon, J.S. & Huisman, J.M. (1989), Toxic effects of a bloom of the diatom Rhizosolenia chunii in Port Phillip Bay, south eastern Australia. Mar. Biol 102: 25–41 [secondary reference]

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

• AMANI dist.: Victoria, Queensland (tropical), Bass Strait, Cosmopolitan
• Habitat: Neritic, Oceanic
• Habit: Planktonic
• Graphic: Huisman 1989: fig 30

Hallegraeff, G.M., Bolch, C.J.S., Huisman, J.M. & de Salas, M.F. (2010), Planktonic dinoflagellates. Algae of Australia: Phytoplankton of Temperate Coastal Waters: 145–212 [secondary reference]

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

nomenclatural synonym: Neoceratium tenue (Ostenf. & E.J.Schmidt) F.Gómez, D.Moreira & López-García nom. illeg. taxonomic synonym: Ceratium tripos var. horridum Cleve legitimate taxonomic synonym: Ceratium claviger Kof. legitimate taxonomic synonym: Ceratium molle Kof. legitimate taxonomic synonym: Ceratium inclinatum Kof. legitimate taxonomic synonym: Ceratium leptosomum Jørg. legitimate taxonomic synonym: Ceratium horridum f. denticulatum Jørg. legitimate taxonomic synonym: Ceratium buceros f. molle (Kof.) Böhm legitimate taxonomic synonym: Ceratium buceros f. denticulatum (Jørg.) Böhm legitimate taxonomic synonym: Ceratium buceros f. leptosomum (Jørg.) Böhm legitimate taxonomic synonym: Ceratium buceros f. clavigerum (Kof.) Böhm legitimate taxonomic synonym: Ceratium buceros f. inclinatum (Kof.) Böhm legitimate misapplication: Ceratium horridum (Cleve) Gran legitimate by Huisman, J.M. (1989), The genus Ceratium (Dinophyceae) in Bass Strait and adjoining waters, southern Australia. Australian Systematic Botany 2: - misapplication: Ceratium buceros O.Zacharias legitimate by Huisman, J.M. (1989), The genus Ceratium Schrank (Dinophyceae) in Bass Strait and adjoining waters, southern Australia. Austral. Syst. Bot 2: -

• Comment: Gómez (A list of free-living dinoflagellate species in the world’s oceans, Acta Bot. Croat. 64: 129–212, 2005) listed C. tenue as a synonym of C. horridum
• Distribution: Gulf of Carpentaria/North-west Shelf, Coral Sea, Qld (Great Barrier Reef, SE coast), N.S.W., East Australian Current, Lord Howe Island, Vic. (Port Phillip Bay), Bass Strait, Tas., S.A., Great Australian Bight, W.A. (S and W coasts)
• Ex.distribution: Brazil, South Atlantic Ocean, Caribbean Sea, Gulf of Mexico, U.S.A. (California, Virginia, Maine), Azores, North Atlantic Ocean, British Isles, North Sea, Spain, Portugal, Mediterranean Sea, Adriatic Sea, Black Sea, Red Sea, East Africa, Arabian Sea, Indian Ocean, Bay of Bengal, Indonesia, Gulf of Thailand, South China Sea, East China Sea, Japan, North Pacific Ocean, Papua New Guinea, Solomon Islands, Tasman Sea, New Zealand, SW Pacific Ocean, eastern tropical Pacific Ocean, Peru

Hallegraeff, G. et al. (2020), The marine planktonic dinoflagellate Tripos: 60 years of species-level distributions in Australian waters. Australian Systematic Botany 33: 405 [basionym]

basionym of: Tripos tenuis (Ostenf. & E.J.Schmidt) Hallegr. & Huisman legitimate

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

nomenclatural synonym of: Tripos tenuis (Ostenf. & E.J.Schmidt) Hallegr. & Huisman legitimate

Gómez, F. (2021), Speciation and infrageneric classification in the planktonic dinoflagellate Tripos (Gonyaulacales, Dinophyceae). Current Chinese Science 1(3): 368 [basionym]

basionym of: Tripos tenuis (Ostenf. & E.J.Schmidt) F.Gómez isonym

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