Motile cell (Lugol, DIC) and cyst (BF, courtesy of Anna Godhe)
Life-form: Solitary
Size: Length 20-57 µm, width 27-40 µm.
Resting spore: +
Note: Species-complex ?
Distinctive features: Longitudinal striation and vertical bars across the girdle, without antapical spines. Cyst.
Similar species:
Distribution: Worldwide
Literature:
Bolch, C. J. & Hallegraeff, G. M. 1990. Dinoflagellate cysts in
recent marine sediments from Tasmania, Australia. Botanica Marina.
33: 173-192.
Dodge, J. D. 1989. Some revisions of the family Gonyaulacaceae (Dinophyceae) based on a scanning electron microscope study. Botanica Marina. 32: 275-298.
Reid, P. C. 1974. Gonyaulacacean dinoflagellate cysts from the British Isles. Nova Hedwigia. 25: 579-637.
Schiller, J. 1937. Dinoflagellatae (Peridineae) in monographischer Behandlung. Teil 2. Rabenhorst's Kryptogamen-Flora.10, III: 589 pp.
Wall, D. & Dale, B.1968b. Modern dinoflagellate cysts and evolution of the Peridiniales. Micropaleontology.14: 265-304.