• Peridinium trichoceros : Ehrenberg

Cell is thecate, of large dimensions, but with a small body. The epitheca is prolonged into a long apical horn, while the two antapical horns curve upwards to point in the same direction as the apical horn.

Cosmopolitan, found in coastal and oceanic waters, typical of temperate, warm and tropical waters.

Distribution: as Ceratium trichoceros. Europe: Croatia (Vilicic et al. 2009), Ireland (McDermott & Raine 2006); Atlantic Islands: Canary Islands (Gil-Rodríguez et al. 2003).

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