A = Living cells at different focal planes; B = 1' - plate; C = A living cell with a red storage-product. A&C=(BF), B=(DIC)
Life-form: Solitary
Size: Length 116-200 µm, width 110-150 µm.
Resting spore:
Note: Luminescent species
Distinctive features: Two long divergent antapical horns and a prominent apical horn, 1'-plate is ortho, 2a-plate is quadra
Similar species: P. divergens
Distribution: Worldwide
Literature:
Dodge, J. D. 1982. Marine Dinoflagellates of the British Isles. Her
Majesty's Stationery Office, London. 303 pp.
Drebes, G. 1974. Marines Phytoplankton, Eine Auswahl der Helgoländer Planktonalgen (Diatomeen, Peridineen). Georg Thieme Verlag, Stuttgart.186 pp
Hansen, G. & Larsen, J. 1992. Dinoflagellater i danske farvande. In: Thomsen, H. A. (ed.) Plankton i de indre danske farvande. Havforskning fra Miljøstyrelsen, Copenhagen, p. 45-155.
Steidinger K. A. & Tangen, K. 1996. Dinoflagellates. In: Tomas, C. R. (ed.) Identifying marine diatoms and dinoflagellates. Academic Press, Inc., San Diego, p. 387-584.