• Neoceratium minutum: (Cleve) F.Gómez, D.Moreira e P.López-Garcia (2010)
• Neoceratium massiliense: F.Gomez, D.Moreira e P.Lopez-Garcia (2010)
• Ceratium triopos var. massiliene: Gourret (1883)
• Ceratium carriense var. massiliense: (Gourret) Huisman

Cell solitary, thecate , of large dimensions. The epitheca is rounded and is prolonged into a long apical horn, slightly curved to the right. The hypotheca is prolonged into two antapical horns with divergent extremities: the left antapical horn curves forwards, while the right one bends to the right. The cell contains numerous chloroplasts.

Cosmopolitan, typical of coastal and oceanic waters, from cold to temperate, but also reported in warm, temperate and tropical waters.

Distribution: as Ceratium massiliense
Europe: Great Britain (Parke & Dixon, 1976), Croatia (Vilicic et al., 2009 ), Ireland (McDermott & Raine, 2006); Atlantic Islands: Canary Islands (Gil-Rodríguez et al., 2003).

As Ceratium minutum in Europe: Britain (Parke & Dixon 1976), France (Tunin-Ley et al. 2007), Ireland (McDermott & Raine 2006); in Australia and New Zealand: New Zealand (Chang et al. 2012).

Neoceratium gen. nov., a new genus for all marine species currently assigned to Ceratium (Dinophyceae)., Protist 161, Gómez F., Moreira D. e López-Garcia P., 2010, 35-54

Check-list of British marine algae - third revision., Journal of the Marine Biological Association of the United Kingdom 56, Parke M., Dixon P.S., 1976, 527-594.

Phylum Myzozoa: dinoflagellates, perkinsids, ellobiopsids, sporozoans. In: New Zealand inventory of biodiversity. Volume Three. Kingdoms Bacteria, Protozoa, Chromista, Plantae, Fungi., Gordon, D.P. Eds, Chang F.H., Charleston W.A.G., McKenna P.B., Clowes C.D., Wilson G.J. e Boady P.A., 2012, 175-216

Composition and annual cycle of phytoplankton assemblages in the northeastern Adriatic Sea., Botanica Marina 52(4), Vilicic, Djakovac, Buric, Z. & Bosak, 2009, 291-305.

The dinoflagellate genus Ceratium in Irish shelf seas., Galway: Martin Ryan Institute., McDermott G., Raine R., 2006, pp. [viii] + 1-86

Proctoctista. In: Lista de especies marinas de Canarias (algas, hongos, plantas y animales). (Moro, L., Martín, J.L., Garrido, M.J. & Izquierdo, I. Eds), Las Palmas: Consejería de Política Territorial y Medio Ambiente del Gobierno de Canarias., Gil-Rodríguez M.C., Haroun R., Ojeda Rodríguez A., Berecibar Zugasti E., Domínguez Santana P., Herrera Morán B., 2003, 5 - 30