A&B = Cell at two focal planes (BF); C&D = Valve at different interference contrast (DIC)
Life-form: Solitary
Size: Diameter = 30-180 µm
Resting spore:
Note:
Distinctive features: Flat cells with large uniform areolae in radial rows throughout the entire valve face
Similar species: Coscinodiscus argus, C. marginatus
Distribution: Worldwide
Literature:
Hasle, G. & Sims, P. A. 1986a. The diatom genus
Coscinodiscus Ehrenb.: C. argus Ehrenb. and C.
radiatus Ehrenb. Botanica Marina. 29: 305-318.
Hasle, G. R. & Syvertsen, E. E. 1996. Marine diatoms. In: Tomas, C. R. (ed.) Identifying marine diatoms and dinoflagellates. Academic Press, Inc., San Diego, p. 5-385.
Hendey, N. I. 1964. An introductory account of the smaller algae of British coastal waters. Part 5: Bacillariophyceae (Diatoms). HSMO, London. 317 pp.